Níveis séricos de magnésio, sua associação com diabetes mellitus tipo 2 e suas complicações/comorbidades com enfâse na doença cardiovascular / Serum magnesium levels and their association with type 2 diabetes mellitus and its complications/comorbidites, especially cardiovascular disease / Niveles séricos de magnesio y su asociación con diabetes mellitus tipo 2, sus complicaciones/comorbilidades con énfasis en la enfermedad cardiovascular

O diabetes mellitus tipo 2 (DM2) é uma doença que apresenta mecanismos fisiopatológicos multifatoriais e complexos, tendo como base a resistência insulínica (RI) e como consequências as doenças cardiovasculares (DCV). A hipomagnesemia tem sido implicada tanto na RI como em complicações micro e macrovasculares, incluindo-se as DCV que são consideradas a causa mais importante de morbimortalidade no DM2. Neste contexto, o presente estudo visa avaliar níveis séricos de magnésio (Mg) em pacientes diabéticos e sua possível associação com complicações crônicas e comorbidades, tendo como ênfase as doenças cardiovasculares; e identificar possível valor do nível sérico a ser considerado em nossa população a fim de rever sua verdadeira aplicabilidade clínica. Trata-se de estudo transversal, descritivo e analítico, envolvendo 99 pacientes com DM2 de ambos os sexos, atendidos em ambulatório público na cidade de Salvador (BA). Utilizou-se como instrumentos de pesquisa questionário de dados sociodemográficos e antropométricos; recordatório alimentar de 24 horas e análise bioquímica do magnésio sérico. Também foram registradas comorbidades e complicações crônicas dos pacientes, tais como hipertensão arterial, doença arterial coronariana, doença arterial obstrutiva periférica, arritmia cardíaca, acidente vascular cerebral, dislipidemia, neuropatia sensitiva periférica, retinopatia e nefropatia diabéticas. Os dados foram expressos por tabelas de forma descritiva e analítica. Os indivíduos foram divididos em dois grupos, magnésio baixo e normal/alto, e suas variáveis foram comparadas por meio de testes de hipóteses. Nossos achados evidenciaram nível sérico médio de magnésio de 1,97 mg% (IC 1,69 a 2,25 mg%) no total da amostra. Entre aqueles com magnésio baixo, níveis subclínicos estavam presentes em 29 sujeitos (29,3%), e níveis de hipomagnesemia em 34 indivíduos (34,3%). O nível médio do Mg no total da amostra diferiu significativamente (p<0,001) do valor normal ideal, mas não diferiu do considerado subclínico (p 0,311). No grupo com hipomagnesemia houve predomínio do sexo feminino e de pacientes com maior escolaridade. Glicemia de jejum foi mais elevada no grupo Mg baixo, e hemoglobina glicada no grupo Mg normal/alto, mas ambos sem diferença estatística. Níveis baixos de vitamina B12 foram encontrados em 12 pacientes (12,1%) e os níveis mais baixos de magnésio estavam presentes nos pacientes com deficiência de vitamina B12 (1,81±0,24 versus 2,01±0,29) com p=0,027. Antidiabéticos orais foram mais utilizados no grupo com Mg baixo. Não houve diferença entre magnésio sérico, ingestão calórica e magnésio e cálcio alimentares. Pacientes com DCV tiveram média de 2,01 mg% (IC 1,69-2,33 mg%) para o Mg. A doença cardiovascular esteve presente em 47,5% da amostra e pacientes com esta morbidade apresentaram 29,8% de prevalência de hipomagnesemia; infarto agudo do miocárdio (IAM) foi mais frequente no grupo com Mg normal/alto. Nossos dados apontam que hipomagnesemia em pacientes diabéticos deve ser considerada em níveis clínicos e subclínicos. Níveis baixos de Mg também estiveram associados à vitamina B12 baixa. Pacientes que apresentaram doenças cardiovasculares associadas também tiveram importante prevalência de hipomagnesemia incluindo níveis subclínicos, com exceção nos casos de IAM, em que níveis do magnésio sérico mantiveram-se no intervalo considerado normal ideal evidenciado por significativa diferença estatística (p<0,005).

Diabetes mellitus type 2 (DM2) is a multifactorial disease with complex physiopathological mechanisms, in which insulin resistance (IR) and its consequences, such as cardiovascular diseases (CVD), form its basis. Hypomagnesemia has been implicated in IR and micro and macrovascular complications, including CVD, which is considered the most important cause of morbidity and mortality in DM2. This study aims to evaluate serum magnesium (Mg) levels in diabetic patients and its possible association with chronic complications and comorbidities (especially cardiovascular diseases) and to find a possible serum level value to be considered in its population to review its true clinical applicability. This cross-sectional, descriptive, and analytical study involved 99 DM2 patients of all sexes who were served in a public outpatient clinic in Salvador-Ba. A sociodemographic and anthropometric data questionnaire, a 24-hour food recall, and serum magnesium analysis were used as research instruments. The comorbidities and chronic complications of patients, such as hypertension, coronary artery disease, peripheral arterial obstructive disease, cardiac arrhythmia, cerebrovascular accident, dyslipidemia, peripheral sensory neuropathy, diabetic retinopathy, and nephropathy, were also recorded. The data were expressed in descriptive and analytical tables. The individuals were divided into two groups, low and normal/high magnesium, and their variables were compared using hypothesis tests. Our findings showed an average serum magnesium level of 1.97 mg% (IC 1.69 to 2.25 mg%) in the whole sample. In those with low magnesium, subclinical levels occurred in 29 subjects (29.3%)and hypomagnesemia, in 34 individuals (34.3%). The median Mg level in the total sample significantly differed (p<0.001) from the ideal normal value, but failed to do in relation to the subclinical value (p=0.311). The hypomagnesemia group showed a predominance of women and patients with higher education. Fasting glucose was higher in the low Mg group and glycated hemoglobin in the normal/high Mg group, both without statistical differences. Low levels of vitamin B12 occurred in 12 patients (12.1%) and the lowest magnesium levels, in patients with vitamin B12 deficiency (1.81±0.24 versus 2.01±0.29) (p=0.027). Oral antidiabetics were more used in the group with low Mg. Serum magnesium, caloric intake, and dietetic magnesium and calcium showed no differences. Patients with CVD had an Mg average of 2.01 mg% (IC 1.69-2.33 mg%). Cardiovascular disease occurred in 47.5% of the sample. Patients with this morbidity had a 29.8% prevalence of hypomagnesemia. Moreover, myocardial infarction occurred more often in the normal/high Mg group. Data suggest that hypomagnesemia in diabetic patients should be considered at clinical and subclinical levels. Low Mg levels were also associated with low vitamin B12. Patients who showed cardiovascular diseases also had a high prevalence of hypomagnesemia, including subclinical levels, except in cases of myocardial infarction, in which serum magnesium levels remained within the normal ideal range, as evinced by its significant statistical difference (p<0.005).

La diabetes mellitus tipo 2 (DM2) es una enfermedad con mecanismos fisiopatológicos multifactoriales y complejos caracterizada por la resistencia a la insulina (RI) y sus consecuencias, como las enfermedades cardiovasculares (ECV). La hipomagnesemia está asociada con la RI y las complicaciones micro y macrovasculares, incluyendo las ECV, que se consideran la principal causa de morbimortalidad por la DM2. En este contexto, este estudio tiene como objetivo evaluar los niveles séricos de magnesio (Mg) en pacientes diabéticos y la posible asociación con complicaciones crónicas y comorbilidades, con énfasis en las enfermedades cardiovasculares; e identificar un posible valor de nivel sérico para considerar en esta población con el fin de revisar su verdadera aplicabilidad clínica. Se trata de un estudio transversal, descriptivo y analítico, en el cual participaron 99 pacientes con DM2 de ambos sexos, atendidos en un centro ambulatorio público en la ciudad de Salvador (Bahía, Brasil). Se utilizaron un cuestionario de datos sociodemográficos y antropométricos, un recordatorio alimentario de 24 horas y un análisis bioquímico del magnesio sérico. También se registraron las comorbilidades y complicaciones crónicas de los pacientes, como hipertensión arterial, enfermedad arterial coronaria, enfermedad arterial obstructiva periférica, arritmia cardíaca, accidente cerebrovascular, dislipidemia, neuropatía sensorial periférica, retinopatía y nefropatía diabética. Los datos se dispusieron en tablas para su análisis y descripción. Los individuos se separaron en dos grupos: bajo magnesio y normal/alto magnesio, y se compararon sus variables mediante pruebas de hipótesis. Los hallazgos evidenciaron un nivel sérico medio de magnesio de 1,97 mg% (IC 1,69 a 2,25 mg%) en el total de la muestra. Los bajos niveles subclínicos de magnesio estaban presentes en 29 sujetos (29,3%), y la hipomagnesemia en 34 individuos (34,3%). El nivel medio de Mg en el total de la muestra tuvo una diferencia significativa (p<0,001) del valor normal ideal, pero no difirió del valor subclínico (p=0,311). En el grupo con hipomagnesemia hubo predominio del sexo femenino y de pacientes con mayor nivel de estudios. La glucemia en ayunas fue más alta en el grupo de bajo Mg, y la hemoglobina glucosilada en el grupo de normal/alto Mg, pero en ninguno de los dos se encontró diferencia estadística. Los bajos niveles de vitamina B12 se encontraron en 12 pacientes (12,1%), y los niveles más bajos de magnesio estaban presentes en los pacientes con deficiencia de vitamina B12 (1,81±0,24 versus 2,01±0,29) con p=0,027. Los antidiabéticos orales se utilizaron más en el grupo con bajo Mg. No hubo diferencia entre el magnesio sérico, la ingesta calórica, el magnesio y el calcio en la dieta. Los pacientes con ECV tuvieron una media de 2,01 mg% (IC 1,69-2,33 mg%) para Mg. La enfermedad cardiovascular estuvo presente en el 47,5% de la muestra, y los pacientes con esta morbilidad tuvieron una prevalencia del 29,8% de hipomagnesemia; el infarto agudo de miocardio (IAM) fue más frecuente en el grupo con normal/alto Mg. Los resultados demuestran que la hipomagnesemia en los pacientes diabéticos debe considerarse en los niveles clínicos y subclínicos. Los bajos niveles de Mg también estuvieron asociados a bajos niveles de vitamina B12. Los pacientes que presentaron enfermedades cardiovasculares asociadas también tuvieron una alta prevalencia de hipomagnesemia, incluidos los niveles subclínicos, con excepción de los casos de IAM en los que los niveles séricos de magnesio se mantuvieron dentro del intervalo considerado normal ideal, evidenciado por una diferencia estadísticamente significativa (p<0,005).

Albúmina en cirrosis: perspectiva inflamatoria / Albumin in cirrhosis: inflammatory perspective

La albúmina sérica humana es la proteína más abundante en el plasma, su estructura molecular le confiere estabilidad, pero también flexibilidad para ligar y transportar un amplio rango de moléculas. Su función oncótica es la propiedad más reconocida que la lleva a introducirse en la terapéutica médica como un expansor de volumen. Sin embargo, en los últimos años se le han adicionado funciones con carácter antioxidante, inmunomodulador y de estabilización endotelial, que hacen presumir que su impacto terapéutico está más allá de sus funciones volumétricas. En los últimos años, específicamente en la cirrosis y la falla hepática aguda sobre crónica, se ha tenido un cambio en el paradigma fisiológico, desde una perspectiva netamente hemodinámica hacia una perspectiva inflamatoria, en donde las funciones oncóticas y no oncóticas de la albúmina están alteradas y tienen un carácter pronóstico en estas entidades. Este conocimiento creciente, desde una perspectiva inflamatoria, hace que se fortalezca el uso terapéutico de la albúmina sérica humana desde las indicaciones tradicionales como prevención de la disfunción circulatoria posparacentesis, prevención y tratamiento de lesión renal aguda, hasta las discusiones para administración a largo plazo en pacientes cirróticos con ascitis.

Human serum albumin is the most abundant protein in plasma, with a molecular structure that provides stability while also allowing flexibility to bind and transport a wide range of molecules. Its oncotic function is the most recognized property, leading to its introduction in medical therapy as a volume expander. However, in recent years, additional functions with antioxidant, immunomodulatory, and endothelial stabilization properties have been identified, suggesting that its therapeutic impact extends beyond its volumetric functions. Specifically, in cirrhosis and acute-on-chronic liver failure, there has been a shift in the pathophysiological paradigm from a purely hemodynamic perspective to an inflammatory perspective, where both oncotic and non-oncotic functions of albumin are altered and have prognostic significance in these conditions. This growing understanding from an inflammatory perspective strengthens the therapeutic use of human serum albumin, not only for traditional indications such as the prevention of post-paracentesis circulatory disfunction, prevention and treatment of acute kidney injury, but also for discussions regarding long-term administration in cirrhotic patients with ascites.

Establishment of high-throughput liquid chromatography tandem mass spectrometry method for determination of 53 per- and polyfluoroalkyl substances in serum / 环境与职业医学

Background Per- and polyfluoroalkyl substances (PFAS) are a class of persistent organic pollutants that possess potential toxicity to the human body. The production and utilization of diverse emerging PFAS have resulted in widespread human exposure. Therefore, it is imperative to establish a quantitative methodology encompassing a wide range of PFAS for a comprehensive assessment of human exposure to these compounds. Objective To establish a high-throughput quantitative method for the simultaneous determination of 53 PFAS in human serum based on ultra-high-performance liquid chromatography-Q Exactive high resolution mass spectrometry (UPLC-Q Exactive HRMS). Methods The extraction recoveries of hydrophilic-lipophilic balance (HLB) column, weak anionexchange (WAX) column, and 96-well WAX μElution plate were compared to select the SPE column with the highest recovery. The retention time and peak shape of the target compounds were compared between ACQUITY UPLC BEH C18 column and Accucore aQ column, and the more cost-effective column was chosen. The effects of adding different levels of ammonium formate (0, 2, 5 and 10 mmol·L−1) in mobile phase on peak shape and target response were compared to determine the optimal buffer salt concentration. The optimal spray voltage was obtained by comparing −2 kV and −4 kV. The proposed method was validated from the aspects of selectivity, standard curve, limits of detection, precision, accuracy, and matrix effect. The method was applied to 142 umbilical serum samples. Results The best recovery rate (64%-118%) was achieved by using 96-well WAX μElution plate. The optimal separation and peak shape were obtained by utilizing Accucore aQ column with H2O-methanol (containing 5 mmol·L−1 ammonium formate) as the mobile phase. Less in-source collision and better target response were observed when the spray voltage was set to −2 kV. All target analytes had a good linearity, with R2 > 0.99. The limits of detection ranged from 0.01 to 0.50 μg·L−1, and the recovery ranged from 69% to 127% with the precision less than 26%. A total of 31 PFAS were detected in the 142 actual samples, among which 14 PFAS had a detection frequency over 50%. Perfluorooctanoic acid showed the highest median concentration of 4.16 μg·L−1, followed by 6:2 chlorinated polyfluorinated ether sulfonate and perfluorooctane sulfonates (3.50 μg·L−1 and 1.59 μg·L−1, respectively). Conclusion In this study, we establish a UPLC-Q Excative HRMS method for simutanious determination of 53 PFAS concentrations in serum. This method has the advantages of wide coverage of PFAS, good selectivity, and easy operation, and is suitable for biological detection with a large sample size.

Kidney function among male workers of a lithium-ion battery-related enterprise in Shanghai / 环境与职业医学

Background Under the guidance of achieving carbon peaking and carbon neutrality goals, the demand for lithium-ion batteries has increased significantly. However, during the production, use, and maintenance of lithium-ion batteries, workers are inevitably exposed to various occupational hazards, and some chemicals are nephrotoxic. Objective To evaluate the kidney function and potential determinants among male workers in a lithium-ion battery-related enterprise in Shanghai. Methods The data of occupational health examination carried out by an occupational disease prevention and control institution for workers in a lithium-ion battery-related enterprise in Shanghai were collected. The workers participating pre-employment occupational health examination were treated as a control group, and the other group was recruited from those participating periodic health examination. Serum creatinine, urea nitrogen, uric acid, and renal ultrasound were used to assess the kidney function of workers. Kidney function was classified according to the reference range of kidney function indicators in Diagnostics (9th Edition, national planning textbook for high education in medicine). Binary logistic regression and generalized linear regression were used to identify potential determinants of abnormal values in kidney function indicators in workers. Results There were 6184 workers in the control group (pre-employment) with a mean age of (27.40±4.50) years. There were 3526 workers on the job with a mean age of (29.40±4.99) years and the median time of service was 2.00 (1.00, 3.42) years. The prevalence rates of high serum creatinine, high urea nitrogen, and high uric acid, and abnormal kidney ultrasound among the control group were 0.66%, 2.47%, 30.32%, and 10.12%, respectively; the indicators in the on-the-job workers were 0.96%, 3.35%, 38.25%, and 12.68%, respectively, significantly higher than those in the control group (P<0.05). After adjusting for worker age, length of service, smoking status, drinking status, hypertension, and hyperglycemia, the binary logistic regression models showed that regular smokers had a higher risk of high urea nitrogen than nonsmokers (OR=1.411, 95%CI: 1.011, 1.969). The risk of high uric acid was lower in older workers (OR=0.966, 95%CI: 0.953, 0.979), and higher in workers with more years of service (≤1 year, OR=1.295, 95%CI: 1.093, 1.534; >1-3 years, OR=1.747, 95%CI: 1.494, 2.042; >3 years, OR=1.866, 95%CI: 1.511, 2.304), hypertension (OR=1.400, 95%CI: 1.055, 1.859), and hyperglycemia (OR=1.565, 95%CI: 1.221, 2.006). Workers who were older (OR=1.038, 95%CI: 1.022, 1.054) and had longer working years (>1-3 years, OR=1.518, 95%CI: 1.201, 1.920), occasional smoking habits (OR=1.239, 95%CI: 1.039, 1.478), regular drinking habits (OR=1.875, 95%CI: 1.139, 3.087), and hypertension (OR=1.465, 95%CI: 1.075, 1.998) were at a higher risk of renal ultrasound abnormalities. The generalized linear models showed that length of service (>1-3 years, β=1.120, 95%CI: 0.360, 1.880; >3 years, β=1.451, 95%CI: 0.543, 2.358), smoking status (occasional, β=0.818, 95%CI: 0.156, 1.479; regular, β=0.841, 95%CI: 0.066, 1.616), and hypertension (β=2.742, 95%CI: 1.390, 4.094) were the influencing factors of serum creatinine concentration in the workers. Age (β=0.014, 95%CI: 0.009, 0.019) and length of service (>1-3 years, β=0.079, 95%CI: 0.012, 0.146) were the influencing factors of urea nitrogen. Age (β=−1.759, 95%CI: −2.288, −1.231), length of service (≤1 year, β=10.676, 95%CI: 4.035, 17.316; >1-3 years, β=26.117, 95%CI: 19.962, 32.272; >3 years, β=34.558, 95%CI: 26.116, 43.001), hypertension (β=23.162, 95%CI: 11.617, 34.707), and hyperglycemia (β=15.017, 95%CI: 4.853, 25.180) were the influencing factors of uric acid. Conclusion The prevalence of abnormal kidney function of workers in selected lithium-ion battery-related enterprise is varied by age, length of service, smoking status, drinking status, hypertension, and hyperglycemia. There may be a trend that the longer the time working in a lithium-ion battery-related enterprise, the worse the workers' kidney function. Therefore, the enterprise should pay attention to the possible reasons for their changes and take targeted interventions.

Preliminary experience of robotic-assisted kidney transplantation in a single center / 器官移植

<b>Objective</b> To evaluate the safety, effectiveness and feasibility of robotic-assisted kidney transplantation (RAKT). <b>Methods</b> Clinical data of 16 patients who underwent kidney transplantation were collected. Among them, 8 recipients received RAKT (RAKT group) and 8 cases underwent open kidney transplantation (OKT) with the contralateral kidney from the same donor (OKT group). Perioperative status and the recovery of renal allograft function were compared between two groups. <b>Results</b> All patients successfully completed the surgery. In the RAKT group, no patient was converted to open surgery. The operation time in the RAKT group was longer than that in the OKT group (<i>P</i>=0.015). No significant differences were observed in the serum creatinine levels before surgery and upon discharge between two groups (both <i>P</i>>0.05). In the OKT group, one recipient developed delayed graft function (DGF), and the remaining recipients did not experience perioperative complications. No significant difference was noted in the short-term recovery of renal allograft function between two groups (<i>P</i>>0.05). <b>Conclusions</b> Postoperative recovery of the recipients in the RAKT group is equivalent to that of their counterparts in the OKT group. RAKT is a safe and effective procedure for the team expertise in kidney transplantation.

The relationship between serum bicarbonate and cardiovascular events in peritoneal dialysis patients / 安徽医科大学学报

Objective To investigate the correlation between serum bicarbonate level and cardiovascular events in peritoneal dialysis(PD)patients.Methods The data of PD patients who underwent PD catheterization and were followed up regularly until March 31,2023 were retrospectively collected.The included patients were divided into low bicarbonate group and normal bicarbonate group according to the time-averaged serum bicarbonate level.The incidence of cardiovascular events(including coronary heart disease,heart failure,stroke,peripheral vascular dis-ease,death related to cardiovascular surgery or death due to aneurysm dissection or rupture,fatal pulmonary em-bolism,or death from other or unknown cardiovascular causes)was compared between the two groups and the risk factors for cardiovascular events were analyzed.Results At the end of follow-up,a total of 110 PD patients were included,and 34 patients had cardiovascular events.Compared with the normal bicarbonate group,the low bicar-bonate group had a higher incidence of cardiovascular events.Univariate Cox regression analysis showed that the risk of cardiovascular events in the low bicarbonate group was 4.197 times higher than that in the normal bicarbon-ate group(95％CI=2.115-8.331,P＜0.001).After adjusting for multiple confounding factors,the risk of car-diovascular events in the low bicarbonate group was 3.506 times higher than that in the normal bicarbonate group(95％CI=1.709-7.193,P=0.001).The results of multivariate competing risk model showed that the risk of cardiovascular events in the low bicarbonate group was 3.801 times higher than that in the normal bicarbonate group(95％CI=1.920-7.525,P＜0.001).Conclusion Low serum bicarbonate level is closely related to the oc-currence of cardiovascular events in patients with PD,and it is an independent risk factor for cardiovascular events in patients with PD.

Correlation of serum metabolites and clinical features in patients with peripheral T-cell lymphoma / 陆军军医大学学报

Objective To explore the changes in serum energy metabolites in patients with peripheral T-cell lymphoma,and investigate serum biomarkers for monitoring peripheral T-cell lymphoma from the perspective of energy metabolism.Methods Multiple/selected reaction monitoring(MRM/SRM)was used to detect the energy-related metabolites in the sera of 16 patients with newly diagnosed peripheral T-cell lymphoma admitted in the Hematology Medical Center of the Second Affiliated Hospital of Army Medical University from November 2020 to December 2021,as well as 10 recruited healthy volunteers.The corresponding clinical data including medical history,laboratory results and image data were collected and retrospectively analyzed.Results Significant differences were seen in the contents and expression profiles of serum energy metabolism-related products between the patients and the healthy volunteers.The patients had significantly reduced serum contents of cyclic AMP,succinate,citrate and cis-aconitate(P＜0.05),and elevated D-glucose 6-phosphate content(P＜0.05).The serum contents of citrate and succinate were negatively correlated with the risk stratification(low-,moderate-and high-risk)and clinical stage of the disease(P＜0.05).Meanwhile,there was a negative correlation between the contents of L-malic acid and citrate and the mid-term efficacy evaluation results,such as complete/partial response(CR/PR)or stable disease(SD)(P＜0.05).For patients with extranodal NK/T cell lymphoma(n=10),there were also significant reductions in the contents of cyclic AMP,succinate,citrate,isocitrate and cis-aconitate in the sera of patients compared with healthy volunteers(P＜0.05),and the contents of citrate and succinate were negatively correlated with the clinical stage(P＜0.05)and were rather correlated with mid-term efficacy evaluation results(CR/PR or SD)(P＜0.05).For patients with angioimmunoblastic T-cell lymphoma(n=6),the serum contents of cyclic AMP,citrate and succinate were significantly lower,while the content of D-glucose 6-phosphate was higher when compared with the healthy volunteers(P＜0.05),and the content of succinate was negatively correlated with both clinical stage and risk grade of the patients(P＜0.05).Conclusion There are 5 serum differential metabolites identified between patients with peripheral T-cell lymphoma and healthy controls,and succinate and citrate are expected to be serum biomarkers of peripheral T-cell lymphoma.

Serum metabolomic characteristics of early papillary thyroid carcinoma and association with lymph node metastasis / 中国耳鼻咽喉头颈外科

OBJECTIVE To compare the metabolomic characteristics of stage T1 papillary thyroid carcinoma(PTC)and nodular goiter(NG),and the relationship between metabolites and lymph node metastasis of PTC.METHODS Serum samples were collected from 60 patients with stage T1 PTC and 30 patients with NG who underwent thyroidectomy at the Department of Otolaryngology Head and Neck Surgery,Civil Aviation General Hospital between September 2021 and April 2022.The PTC group was divided into the N+ group with lymph node metastasis and the N-group without lymph node metastasis according to the presence or absence of lymph node metastasis.The serum metabolites of the N+ and N-groups and the PTC and NG groups were compared and analyzed using an ultra-performance liquid chromatography-mass spectrometry(UPLC-Q-Exactive-MS)coupled platform,and principal component analysis(PCA),partial least squares discriminant analysis(PLS-DA),and orthogonal partial least squares discriminant analysis(OPLS-DA)was performed using SIMCA-P 14.1 software.OPLS-DA modeling,combined with FDR-corrected Mann-Whitney-Wilcoxon test results and metabolite difference multiples in the two groups undergoing comparison,etc.to screen for potential small molecule metabolic markers,and to establish a joint diagnostic model by binary logistic regression analysis.RESULTS There were no significant differential metabolites between the N+ group with lymph node metastasis and the N-group without lymph node metastasis.Seven differential metabolites were found between PCA patients and NG patients,and the five relevant metabolic pathways were the pentose phosphate pathway,pentose and glucuronide interconversion,glycolysis/gluconeogenesis,fructose,and mannose metabolism,and fatty acid biosynthesis.The differential metabolite with an area under the ROC curve>0.9 was D-glyceraldehyde 3-phosphate,and another N-undecanoylglycine,uronic acid,and the area under the ROC curve for three metabolites,N-undecanoylglycine,uric acid,and triiodothyronine glucuronide,was>0.8.CONCLUSION PTC patients differed from NG patients mainly in glucose metabolism and lipid metabolism,and D-glyceraldehyde 3-phosphate could be distinguished from NG patients with the aid of N-undecanoylglycine,uric acid,and triiodothyronine glucuronide,combined with imaging findings.Also,no significant differences in serum metabolites were found in the N+ group compared with the N-group,and the presence or absence of lymph node metastases did not affect serum metabolites in patients with stage T1 PTC.

Evaluation of molecular point-of-care testing for rapid diagnosis of influenza A virus and influenza B virus / 国际检验医学杂志

Objective To evaluate the performance of two molecular point-of-care testing(POCT)prod-ucts in the diagnosis of influenza A virus(Flu A)and influenza B virus(Flu B)of clinical samples,and pre-liminarily evaluate the clinical diagnostic value of the changes of infection-related indicators in peripheral blood.Methods A total of 491 oropharyngeal swabs from patients with influenza-like symptoms who were treated in the hospital were recruited into this study from November 1,2019 to June 30,2023.These swabs were collected using reverse transcription real-time quantitative fluorescent polymerase chain reaction(RT-qPCR),and two POCT molecular products,XpertTM Xpress Flu/RSV and EasyNAT? Flu Assay,respectively.The diagnostic performance of two POCT molecular products was analyzed using RT-qPCR reaction as a standard.According to the results of RT-qPCR method,the subjects were divided into Flu A positive group,Flu B positive group and negative group(both Flu A and Flu B were negative).The levels of indicators in pe-ripheral blood of the three groups were compared to evaluate the value of these indicators in the clinical diag-nosis of Flu A and Flu B.Results Among the 491 patient specimens,the XpertTM Xpress Flu/RSV assay showed the sensitivity for Flu A was 96.88%,and the specificity was 99.75%,and the sensitivity for Flu B was 100.00%,and the specificity was 100.00%.EasyNAT? Flu Assay assay showed the sensitivity for Flu A was 94.79%,and the specificity was 96.81%,and the sensitivity for Flu B was 100.00%,and the specificity was 100.00%.And two POCT molecular methods performed well consistency(Kappa value was 0.974).There was no significant difference in the levels of C-reactive protein and serum amyloid A among the negative group,Flu A positive group,and Flu B positive group(P>0.05).But the levels of white blood cell count in the negative group were higher than those in the Flu A positive group and Flu B positive group(P<0.01).Conclusion In this paper,two typical molecular POCT products are studied.Their sensitivity and specificity are highly consistent with the results of RT-qPCR.Molecular POCT products have the advantages of flexibil-ity and rapidity,which are of great value for the improvement of clinical diagnosis and treatment.Molecular detection combined with peripheral blood infection related indicators is helpful for the early diagnosis of influ-enza virus infectious diseases.

Analysis of the predictive value of the protein level of oncogenes C-myc,N-ras,PLK 1,and FGF2 in the serum of hepatitis B-related liver cancer patients on the prognosis after TACE / 国际检验医学杂志

Objective To investigate the predictive value of serum oncogene[proliferation-related gene(C-myc),transformation gene(N-ras),silk/threonine kinase 1(PLK1),fibroblast growth factor 2(FGF2)]protein levels in patients with hepatitis B associated hepatocellular carcinoma(HCC)after hepatic arterial chemoem-bolization(TACE).Methods A total of 127 patients with hepatitis B-associated hepatocellular carcinoma ad-mitted to a hospital from July 2016 to January 2021 were selected and divided into death group and survival group according to the follow-up results.The serum oncogene C-myc,N-ras,PLK1 and FGF2 protein levels were determined by double-antibody sandwich enzyme-linked immunosorbent assay.Univariate and multivari-ate Cox analysis were used to analyze the risk factors of serum oncogene C-myc,N-ras,PLK1 and FGF2 pro-tein levels in patients with hepatitis B-associated hepatocellular carcinoma after TACE.The receiver operating characteristic curve was used to evaluate the prognostic value of the serum oncogene C-myc,N-ras,PLK1 and FGF2 protein levels,and the patients were divided into high expression group and low expression group ac-cording to the corresponding cutoff value.Kaplan-Meier survival curve was used to evaluate the prognosis of different serum oncogene C-myc,N-ras,PLK1 and FGF2 protein level.Results Multivariate Cox regression a-nalysis indicated that TNM stage Ⅲ to Ⅳ(HR=2.998,95％CI:1.239-7.257),portal vein metastasis(HR=3.737,95％CI:1.941-7.193),abdominal metastasis(HR=3.482,95％CI:1.709-7.097),Child-Pugh grade B(HR=2.587,95％CI:1.045-6.406),high serum oncogene C-myc protein level(HR=1.224,95％CI:1.090-1.374),high serum oncogene N-ras protein level(HR=1.218,95％CI:1.097-1.353),high serum oncogene PLK1 protein level(HR=1.237,95％CI:1.110-1.379)and high serum oncogene FGF2 protein level(HR=1.141,95％CI:1.060-1.228)were independent risk factors for the prognosis of hepatitis B-asso-ciated hepatocellular carcinoma patients after TACE(all P＜0.05).The overall survival rate of low expression group of serum oncogene C-myc,N-ras,PLK1,FGF2 protein level was significantly higher than that of high expression group of serum oncogene C-myc,N-ras,PLK1,FGF2 protein level,the difference was statistically significant(all P＜0.001).Conclusion Serum oncogene C-myc,N-ras,PLK1,FGF2 protein levels have predic-tive value for the prognosis of patients with HBV-related liver cancer after TACE.

Correlation of serum soluble Klotho protein and tendino-C with severity of disease and oxidative stress in children with IgA nephropathy / 国际检验医学杂志

Objective To analyze the correlation between serum soluble Klotho protein(sKL)and tendino-C(TN-C)and the severity of disease and oxidative stress in children with immunoglobulin A(IgA)nephropa-thy.Methods A total of 85 children with IgA nephropathy admitted to the hospital from July 2019 to August 2022 were selected as IgA nephropathy group,and 85 healthy patients who underwent physical examination in the hospital during the same period were selected as healthy group.Serum sKL and TN-C levels were com-pared between the two groups.Receiver operating characteristic(ROC)curve was drawn to analyze the value of serum sKL,TN-C and their combination in predicting the occurrence of IgA nephropathy.IgA nephropathy group was divided into mild group(28 cases),moderate group(39 cases)and severe group(18 cases)accord-ing to 24 h urinary protein quantity.Serum sKL,TN-C levels and oxidative stress indexes[malondialdehyde(MDA),superoxide dismutase(SOD)and advanced oxidation protein product(AOPP)]of the three groups were compared.The correlation between serum sKL and TN-C levels and oxidative stress indexes was ana-lyzed by Spearman correlation,and the correlation between serum sKL and TN-C levels and the severity of IgA nephropathy in children was examined by Kendall's Tau-b.Results The serum sKL level in IgA ne-phropathy group was lower than that in healthy group,and the serum TN-C level was higher than that in healthy group,the difference was statistically significant(P＜0.05).ROC curve showed that the area under the curve and 95％CI of serum sKL,TNC and their combination predicted the occurrence of IgA nephropathy were 0.726(95％CI:0.648-0.803),0.853(95％CI:0.796-0.909)and 0.891(95％CI:0.845-0.937).The level of serum sKL in severe group was lower than that in moderate and mild groups,while the level of serum TN-C was higher than that in moderate and mild groups,and the difference was statistically significant(P＜0.05).The serum SOD level of severe group was lower than that of moderate group and mild group,and the serum AOPP and MDA levels were higher than those of moderate group and mild group,the difference was statistically significant(P＜0.05).Spearman correlation showed that sKL level was positively correlated with SOD(r＞0,P＜0.05),and negatively correlated with AOPP and MDA(r＜0,P＜0.05).TN-C level was negatively correlated with SOD(r＜0,P＜0.05),and positively correlated with AOPP and MDA(r＞0,P＜0.05).Conclusion The levels of serum sKL and TN-C in children with IgA nephropathy are related to the severity of disease and oxidative stress,and the combination of SKL and TN-C can effectively predict the occurrence of IgA nephropathy.

The predictive value of serum Nesfatin-1 and 25(OH)D3 levels for the short-term prognosis of status epilepticus in children / 国际检验医学杂志

Objective To investigate the predictive value of serum Nesfatin-1 and 25-hydroxyvitamin D3[25(OH)D3]levels for the short-term prognosis of status epilepticus(SE)in children.Methods A total of 104 children with SE admitted to the hospital from March 2020 to March 2023 were enrolled in the study,and the clinical data of the children were collected.According to the Glasgow outcome Scale(GOS)score at dis-charge,the children were divided into a good prognosis group(equal to 5 points)and a poor prognosis group(＜5 points).Univariate analysis and multivariate Logistic regression were used to analyze whether serum Nesfatin-1 and 25(OH)D3 levels were risk factors for poor short-term prognosis in children with SE.The re-ceiver operating characteristic(ROC)curve was drawn to analyze the predictive value of serum Nesfatin-1 and 25(OH)D3 levels for the short-term poor prognosis in children with SE.Results At discharge,85 children[81.73％(85/104)]with a GOS score of 5 were included in the good prognosis group,and 19 children[8.27％(19/104)]with a GOS score of＜5 were included in the poor prognosis group.There was no significant differ-ence in gender,age,previous history of epilepsy,and seizure types between the two groups(P＞0.05).There were significant differences in the duration of SE,the time from medication to seizure cessation,electroenceph-alogram(EEG)results,head CT results,and serum Nesfatin-1 and 25(OH)D3 levels between the two groups(P＜0.05).Multivariate Logistic regression analysis showed that SE duration＞60 min,abnormal head CT results,serum Nesfatin-1 and 25(OH)D3 levels were independent risk factors for the short-term poor progno-sis of children with SE(OR=1.945,2.343,1.731,1.505;P＜0.05).The area under the ROC curve of serum Nesfatin-1 and 25(OH)D3 levels combined to predict poor short-term prognosis of children with SE was 0.840(95％CI:0.732-0.949),which was better than that of serum Nesfatin-1 and 25(OH)D3 levels alone[0.607(95％CI:0.453-0.761),0.742(95％CI:0.604-0.880)],respectively.Conclusion Serum Nesfatin-1 and 25(OH)D3 levels are risk factors for poor prognosis in children with SE,and the combination of them has high predictive value for poor prognosis in children with SE.

Clinical study on the combination of systemic immune inflammation index and neutrophil lymphocyte ratio in guiding immunotherapy for advanced gastric cancer / 国际外科学杂志

Objective:To analyze the significance of systemic immune inflammatory index (SII) combined with neutrophil lymphocyte ratio (NLR) in the treatment of advanced gastric cancer with PD-1/PD-L1 inhibitors.Methods:The clinical data of 90 patients with stage Ⅳ gastric adenocarcinoma who received immunotherapy from January 2020 to January 2023 were retrospectively analyzed, including 70 males and 20 females, aged from 36 to 80 years, with an average age of (53.76±15.58) years. The clinicopathological features and follow-up data were collected. SPSS 26.0 software was used to conduct statistical analysis. The critical values of NLR, SII, PLR and MLR were calculated, and the overall survival (OS) and progression free survival (PFS) of patients with different levels of markers were analyzed. The independent predictive factors of PFS and OS were determined, and the predictive value of risk factors for PFS and OS in patients with gastric cancer was evaluated.Results:The median follow-up time of all patients was 27.3 months, and the median PFS and OS were 10.0 months and 17.7 months, respectively. The area under the curve (AUC) of NLR and SII for predicting PFS and OS were>0.7, the critical values NLR were 4.75 and 3.85, and SII were 1154.67 and 887.90, respectively. PFS and OS in patients with high NLR, high MLR, high PLR and high SII were lower than those in patients with low levels. ECoG PS≥ 1, high NLR and high SII were independent influencing factors of disease progression or death. The AUC of the combination of NLR, ECoG PS and SII was 0.761, which was higher than that of any single factor. The fewer the number of risk factors, the longer the PFS and OS.Conclusions:NLR and SII are effective predictors of PFS and OS in patients with advanced gastric cancer receiving immunotherapy. Pre treatment detection of NLR and SII can provide reliable guidance for immunotherapy of advanced gastric cancer.

Clinical value of serum miR-19b and miR-744-5p levels in the diagnosis of non-small cell lung cancer / 国际肿瘤学杂志

Objective:To investigate the serum levels of miR-19b and miR-744-5p in patients with non-small cell lung cancer (NSCLC), and to analyze the clinical value of miR-19b and miR-744-5p in the diagnosis of NSCLC.Methods:A total of 226 NSCLC patients (NSCLC group) and 100 healthy people (control group) admitted to Jilin Cancer Hospital from August 2019 to August 2022 were selected as research objects. Quantitative real-time PCR was used to measure and compare the serum levels of miR-19b and miR-744-5p between the NSCLC group and the control group, and the relationships between the two indicators and different clinical and pathological characteristics of NSCLC patients were analyzed. The receiver operating characteristic curve was used to analyze the clinical value of miR-19b, miR-744-5p and their joint detection in the diagnosis of NSCLC.Results:Compared with the control group, the serum miR-19b level (3.86±1.25 vs. 1.06±0.41) in the NSCLC group significantly increased ( t=21.87, P<0.001), while the miR-744-5p level (1.80±0.48 vs. 5.75±1.69) significantly decreased ( t=32.36, P<0.001). The serum miR-19b levels in NSCLC patients with pathological types of adenocarcinoma, maximum tumor diameter ≥3 cm, medium to low differentiation, stage Ⅲ-Ⅳ, and with lymph node metastasis were higher than those in squamous cell carcinoma ( t=5.94, P<0.001), maximum tumor diameter <3 cm ( t=2.65, P=0.009), well differentiation ( t=4.33, P<0.001), stageⅠ-Ⅱ ( t=12.32, P<0.001), patients without lymph node metastasis ( t=8.13, P<0.001), while miR-744-5p levels were lower than those in squamous cell carcinoma ( t=8.27, P<0.001), tumor maximum diameter <3 cm ( t=5.34, P<0.001), well differentiation ( t=6.95, P<0.001), stageⅠ-Ⅱ ( t=11.40, P<0.001), patients without lymph node metastasis ( t=10.36, P<0.001). The area under the curve (AUC) of serum miR-19b combined with miR-744-5p in the diagnosis of NSCLC was 0.914 (95% CI: 0.841-0.959), with sensitivity and specificity of 90.9% and 84.0%, respectively. AUC was significantly than that of the single indicator detection of miR-19b (AUC=0.824, 95% CI: 0.770-0.869) and miR-744-5p (AUC=0.783, 95% CI: 0.709-0.838) ( Z=2.28, P=0.021; Z=2.36, P=0.017) . Conclusion:Serum miR-19b level of NSCLC patients is increased, miR-744-5p levels is decreased, and joint detection of serum miR-19b and miR-744-5p has high clinical value in the diagnosis of NSCLC.

Study on the Distribution of Traditional Chinese Medicine Constitution in Pregnant Women with Iron Deficiency Anemia and Its Influencing Factors / 广州中医药大学学报

Objective To investigate the distribution of traditional Chinese medicine(TCM)constitution in pregnant women with iron deficiency anemia(IDA)and its related influencing factors,so as to provide a reference for the TCM prevention and treatment of IDA in pregnancy.Methods A total of 109 eligible patients with IDA during pregnancy were included in the study.The general data of pregnant women,the TCM constitution types and relevant laboratory indicators including serum ferritin(Fer),hemoglobin(Hb)and mean corpuscular volume(MCV)were collected.Statistical analyses were conducted on the distribution of TCM constitution types of IDA pregnant women and its related influencing factors as well as the pregnancy outcomes.Results(1)The 109 IDA pregnant women were predominated by biased constitution types,accounted for 60 cases(55.05％).The distribution of the constitution types of 109 IDA pregnant women was as follows:balanced constitution(49 cases,44.95％)>damp-heat constitution(13 cases,11.93％)>yang deficiency constitution(12 cases,11.01％)>yin deficiency constitution(11 cases,10.09％)>qi deficiency constitution(10 cases,9.17％)>qi stagnation constitution(9 cases,8.26％)>blood stasis constitution(3 cases,2.75％)>phlegm-damp constitution(2 cases,1.83％).(2)Comparison of Hb and MCV levels in IDA pregnant women with various constitution types showed no statistically significant differences(P>0.05),but Fer level in IDA pregnant women with damp-heat constitution was significantly higher than that in IDA pregnant women with balanced constitution(P<0.01),and the probability of occurrence of amniotic opacity in IDA pregnant women with damp-heat constitution was significantly higher than that in IDA pregnant women with balanced constitution and other biased constitution types(P<0.05).Conclusion Damp-heat constitution is the most common TCM constitution type in pregnant women with IDA,followed by yang deficiency constitution,yin deficiency constitution and qi deficiency constitution.The damp-heat constitution may be the susceptible constitution of pregnant women with IDA,and IDA pregnant women with damp-heat constitution have significantly higher Fer level than those with balanced constitution,and also have the higher probability of occurrence of amniotic opacity than those with balanced constitution and other biased constitution types.

Effect of Bushen Quhan Huashi Prescription Combined with Methotrexate on Disease Activity and Serum Core-Binding Factor a1 Level in Patients with Ankylosing Spondylitis / 广州中医药大学学报

Objective To investigate the effects of the Bushen Quhan Huashi Prescription(mainly composed of Drynariae Rhizoma,Eucommiae Cortex,Dipsaci Radix,Notopterygii Rhizoma et Radix,Zingiberis Rhizoma Recens,Coicis Semen,and Achyranthis Bidentatae Radix)in combination with Methotrexate on the disease activity and serum core-binding factor a1(Cbfa1)level of patients with ankylosing spondylitis(AS)of kidney deficiency and governor-vessel cold type.Methods Ninety AS patients with kidney deficiency and governor-vessel cold type were randomly divided into a trial group and a control group,with 45 patients in each group.The control group was given Methotrexate treatment,and the trial group was treated with Bushen Quhan Huashi Prescription on the basis of treatment for the control group.The course of treatment in the two groups lasted for 3 months.The changes of Bath ankylosing spondylitis disease activity index(BASDAI)scores,Bath ankylosing spondylitis function index(BASFI)scores and serum levels of Cbfa1,type I collagen carboxy-terminal peptide(CTX-Ⅰ)and Dickkopf1 protein(DKK1)of the two groups were observed before and after treatment.After treatment,the clinical efficacy and the incidence of adverse effects were compared between the two groups.Results(1)After 3 months of treatment,the total effective rate of the trial group was 97.78%(44/45)and that of the control group was 82.22%(37/45).The intergroup comparison by chi-square test)showed that the therapeutic efficacy of the trial group was significantly superior to that of the control group,and the difference was statistically significant(P＜0.05).(2)After treatment,the disease activity scores of BASDAI and BASFI in the two groups of patients were significantly decreased compared with those before treatment(P＜0.05),and the trial group's reduction of BASDAI scores and BASFI scores were significantly superior to those of the control group,and the differences were statistically significant(P＜0.01).(3)After treatment,the serum levels of serological indicators of Cbfa1,CTX-Ⅰ,and DKK1 in the two groups were decreased compared with those before treatment(P＜0.05),and the decrease of Cbfa1,CTX-Ⅰ and DKK1 levels in the trial group was significantly superior to that in the control group,the differences being all statistically significant(P＜0.01).(4)During the treatment,the incidence of adverse reactions in the trial group was 6.66%(3/45)and that in the control group was 11.11%(5/45),and the difference of the incidence of adverse reactions between the two groups was not statistically significant(P＞0.05).Conclusion Bushen Quhan Huashi Prescription combined with Methotrexate exerts certain effect in treating AS patients with kidney deficiency and governor-vessel cold type,and the therapy can effectively control the disease activity and reduce the level of serum Cbfa1 expression in the patients.

Effects of Fuzheng Quxie Prescription Combined with Neoadjuvant Chemotherapy on Tumor Recurrence,Serum Thymidine Kinase 1 Level and Immune Function in Patients with Triple-Negative Breast Cancer / 广州中医药大学学报

Objective To investigate the effects of Fuzheng Quxie Prescription(mainly with the actions of supporting healthy qi and dispelling pathogens)combined with neoadjuvant chemotherapy on tumor recurrence,serum thymidine kinase 1(TK1)level and immune function in patients with triple-negative breast cancer(TNBC).Methods Eighty patients with TNBC of qi and yin deficiency type were randomly divided into a combination group and a control group,with 40 patients in each group.The control group was treated with AC-T sequential chemotherapy(Doxorubicin combined with Cyclophosphamide plus sequential Docetaxel),and the combination group was treated with Fuzheng Quxie Prescription on the basis of treatment for the control group.One course of treatment covered 21 days,and the two groups were treated for 4 consecutive courses.The changes of traditional Chinese medicine(TCM)syndrome scores,Karnofsky Performance Status(KPS)score,levels of tumor markers of carbohydrate antigen 125(CA125),carbohydrate antigen 153(CA153)and TK1,and T lymphocyte subset levels in the two groups were observed before and after the treatment.Moreover,the clinical efficacy and tumor metastasis and recurrence in the two groups were compared.Results(1)After 4 courses of treatment,the total effective rate of the combination group was 87.50%(35/40),and that of the control group was 67.50%(27/40),and the intergroup comparison(tested by chi-square test)showed that the efficacy of the combination group was significantly superior to that of the control group(P＜0.05).(2)After treatment,the TCM syndrome scores in the two groups were significantly decreased compared with those before treatment(P＜0.05),and the KPS scores were significantly increased compared with those before treatment(P＜0.05),and the decrease of TCM syndrome scores and the increase of KPS scores in the combination group were significantly superior to that in the control group(P＜0.05 or P＜0.01).(3)After treatment,the serum CA125,CA153 and TK1 levels of patients in the two groups were significantly decreased compared with those before treatment(P＜0.05),and the decrease of serum CA125,CA153 and TK1 levels in the combination group was significantly superior to that in the control group(P＜0.01).(4)After treatment,the T lymphocyte subset CD3+,CD4+ levels and CD4+/CD8+ ratio in the two groups were significantly increased compared with those before treatment(P＜0.05),and the CD8+ level was significantly decreased compared with that before treatment(P＜0.05).The post-treatment intergroup comparison showed that the increase of the T lymphocyte subset CD3+,CD4+ levels and CD4+/CD8+ ratio as well as the decrease of the CD8+ level in the combination group was all significantly superior to that in the control group(P＜0.05 or P＜0.01).(5)The one-year follow-up showed that the tumor recurrence rate and tumor metastasis rate in the combination group were 7.50%(3/40)and 12.50%(5/40)respectively,significantly lower than 25.00%(10/40)and 35.00%(14/40)in the control group,and the differences were statistically significant when comparing between the two groups(P＜0.05).Conclusion The combination of neoadjuvant chemotherapy with Fuzheng Quxie Prescription has a better therapeutic effect on TNBC patients with qi and yin deficiency syndrome,which can effectively improve the immune function of the patients,decrease the level of serum tumor markers,improve the quality of life of the patients,and reduce the incidence of tumor recurrence and metastasis.

Inhibition of triggering receptor expressed on myeloid cells-1(TREM-1)attenuates chronic intermittent hypoxia-induced atherosclerosis in mouse models / 基础医学与临床

Objective To investigate the role of triggering receptor expressed on myeloid cells-1(TREM-1)in ath-erosclerosis induced by chronic intermittent hypoxia(CIH).Methods ApoE-/-mice were randomly divided into blank group,model group and experimental group.The mice in the model group and the experimental group were kept in a hypoxic environment and fed with a high-fat diet.After 4 weeks of high-fat feeding,mice in the experi-mental group were intraperitoneally injected with TREM-1 inhibitor LR12(5 mg/kg)for 8 weeks.After 12 weeks of feeding,the level of serum total cholesterol(TC),low density lipoprotein(LDL),triglyceride(TG),tumor necrosis factor-α(TNF-α),interleukin-1β(IL-1β)and interleukin-10(IL-10)were detected.Histological analysis of aortic TREM-1 expression,plaque area and macrophage level were examined.Results Compared with blank group,the expression of TREM-1 in the aorta of the model group significantly increased(P＜0.05).Com-pared with model group,the aortic plaque,the level of lipids in serum(TC,LDL,TG)and inflammatory factors(TNF-α,IL-1β,IL-10),aortic plaque,the expression of TREM-1 and infiltrating macrophages in aortic plaque of the experimental group were all significantly reduced(P＜0.05).Conclusions TREM-1 is involved in the develop-ment of CIH-induced AS.Inhibition of TREM-1 can alleviate CIH-induced AS and its mechanism is related to the inhibition of macrophage activation.

Analysis of prognostic factors in patients with acute diquat poisoning / 中华急诊医学杂志

Objective:To investigate the factors influencing the short-term prognosis of patients with acute diquat poisoning (ADQP).Methods:Patients with ADQP admitted to the Affiliated Hospital of Xuzhou Medical University and Xuzhou Occupational Disease Prevention Hospital from August 2015 to July 2022 were retrospectively selected. Patients were divided into survival group and death group according to 30-day survival status after poisoning. The general data and the results of the first laboratory examination after admission were compared between the two groups. Logistic regression analysis was used to analyze the independent risk factors associated with prognosis. And the receiver operating characteristic (ROC) curve was drawn to evaluate the prognostic value of risk factors in patients with ADQP.Results:A total of 79 ADQP patients were included in this study, including 40 patients in the survival group and 39 patients in the death group. There were statistically significant differences in the age, poisoning dose, white blood cell, alanine aminotransferase, aspartate aminotransferase, serum creatinine, blood urea, neutrophil to lymphocyte ratio, monocyte to lymphocyte ratio, and systemic immune inflammation index (SII) between survival and death groups (all P<0.05). Multivariate logistic regression analysis showed that the poisoning dose ( OR=1.018, 95% CI: 1.001-1.035, P=0.033), serum creatinine ( OR=1.049, 95% CI: 1.005-1.095, P=0.028), and SII ( OR=1.001, 95% CI: 1.000-1.002, P=0.029) were independent risk factors for the prognosis of patients with diquat poisoning. The areas under the curves of the combined detection of poisoning dose, serum creatinine and SII was 0.968, the sensitivity was 0.949, and the specificity was 0.900, which were higher than those of the single index. Conclusions:The poisoning dose, serum creatinine and SII are independent prognostic predictors of patients with ADQP. The combination of three independent factors has higher sensitivity and specificity in evaluating the prognosis of ADQP, which could be used as a reliable indicator to predict the prognosis of patients with ADQP.