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1.
PeerJ ; 12: e16845, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38304191

RESUMO

Objective: DJ-1 is an oncoprotein secreted by cancer cells. However, the physiological and pathological significance of DJ-1 secretion is not clearly understood. This study investigated the clinical value of serum DJ-1 in lung adenocarcinoma (LUAD). Methods: The study involved 224 LUAD patients, 110 patients with benign pulmonary disease and 100 healthy controls from the First Affiliated Hospital of Nanjing Medical University. We detected the expression of DJ-1 in lung cell lines in vitro. Meanwhile, serum concentrations of DJ-1, carcinoembryonic antigen (CEA), neuron-specific enolase (NSE), and cytokeratin 19 fragment (CYFRA21-1) were measured. The diagnostic performance of LUAD was obtained using receiver operating characteristic (ROC) curves. Kaplan-Meier, univariate and multivariate Cox regression analyses were performed for progression-free survival (PFS). Results: DJ-1 was highly expressed in LUAD cell lines. Serum DJ-1 levels were significantly higher in the LUAD group compared to the benign pulmonary disease group (5.04 vs. 3.66 ng/mL, P < 0.001) and healthy controls (5.04 vs. 3.51 ng/mL, P < 0.001). DJ-1 levels were associated with gender (P = 0.002), smoking history (P = 0.042) and lymph node metastasis (P = 0.040). ROC curve analysis of DJ-1 revealed an area under the curve (AUC) of 0.758 (95% CI [0.714-0.803], P < 0.001) with a sensitivity of 63.8% and specificity of 78.6% at a cutoff value of 4.62 ng/mL for the detection of LUAD. Univariate and multivariate analyses confirmed that the preoperative serum DJ-1 level, tumor stage and smoking history were independent prognostic factors of PFS. Conclusion: Our study is the first to explore the clinical value of serum DJ-1 in LUAD comprehensively. Serum DJ-1 could be a potential diagnostic and prognostic biomarker for LUAD.


Assuntos
Adenocarcinoma de Pulmão , Biomarcadores Tumorais , Neoplasias Pulmonares , Proteína Desglicase DJ-1 , Humanos , Adenocarcinoma de Pulmão/sangue , Adenocarcinoma de Pulmão/diagnóstico , Antígenos de Neoplasias/sangue , Biomarcadores Tumorais/sangue , Queratina-19/sangue , Neoplasias Pulmonares/sangue , Neoplasias Pulmonares/diagnóstico , Proteína Desglicase DJ-1/sangue
2.
Sci Data ; 11(1): 164, 2024 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-38307869

RESUMO

miR-Blood is a high-quality, small RNA expression atlas for the major components of human peripheral blood (plasma, erythrocytes, thrombocytes, monocytes, neutrophils, eosinophils, basophils, natural killer cells, CD4+ T cells, CD8+ T cells, and B cells). Based on the purified blood components from 52 individuals, the dataset provides a comprehensive repository for the expression of 4971 small RNAs from eight non-coding RNA classes.


Assuntos
MicroRNAs , Humanos , Eosinófilos , Eritrócitos , MicroRNAs/sangue , Monócitos , Neutrófilos/metabolismo
3.
BMC Cancer ; 24(1): 165, 2024 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-38308214

RESUMO

BACKGROUND: To improve the prognosis of patients with metastatic colorectal cancer (mCRC), investigating predictive biomarkers of their prognosis and chemotherapeutic responsiveness is necessary. This study aimed to analyze the clinical significance of serum proteinase-3 (PRTN3) as a predictor for prognosis and chemosensitivity, especially to bevacizumab therapy, in mCRC. METHODS: This single-center retrospective observational study enrolled 79 patients with mCRC in our hospital and 353 patients with colorectal cancer in the TCGA database. Preoperative serum PRTN3 levels were measured using an enzyme-linked immunosorbent assay. The clinicopathological characteristics and prognosis according to serum PRTN3 levels were then evaluated. PRTN3 expression in tumor and stromal cells was evaluated immunohistochemically. The impact of PRTN3 levels on angiogenesis and bevacizumab sensitivity was evaluated using the tube formation assay. RESULTS: Serum PRTN3 levels were an independent poor prognostic factor for progression-free survival (PFS) (hazard ratio, 2.082; 95% confidence interval, 1.118-3.647; P=0.010) in patients with mCRC. Similarly, prognostic analysis with TCGA data sets showed poorer overall survival in patients with PRTN3 expression than that in patients without PRTN3 expression, especially in patients with stage IV. Immunohistochemical analysis of resected specimens revealed that stromal neutrophils expressed PRTN3, and their expression level was significantly correlated with serum PRTN3 levels. Interestingly, the effectiveness of first-line chemotherapy was significantly poorer in the high serum PRTN3 level group. High serum PRTN3 was significantly associated with poor PFS (hazard ratio, 3.027; 95% confidence interval, 1.175-7.793; P=0.0161) in patients treated with bevacizumab, an anti-angiogenic inhibitor. The tube formation assay revealed that PRTN3 administration notably augmented angiogenesis while simultaneously attenuating the anti-angiogenic influence exerted by bevacizumab therapy. CONCLUSIONS: Serum PRTN3 levels could be a novel predictive biomarker of PFS of first-line chemotherapy, especially for bevacizumab therapy, in patients with mCRC.


Assuntos
Neoplasias do Colo , Neoplasias Colorretais , Mieloblastina , Neoplasias Retais , Humanos , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Bevacizumab/uso terapêutico , Biomarcadores , Neoplasias do Colo/tratamento farmacológico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Colorretais/genética , Fluoruracila , Peptídeo Hidrolases , Prognóstico , Intervalo Livre de Progressão , Neoplasias Retais/tratamento farmacológico , Mieloblastina/sangue
6.
JAMA ; 331(5): 417-424, 2024 02 06.
Artigo em Inglês | MEDLINE | ID: mdl-38319333

RESUMO

Importance: Approximately 12 million adults in the US have a history of gout, but whether serum urate levels can help predict recurrence is unclear. Objective: To assess associations of a single serum urate measurement with subsequent risk of acute gout flares and subsequent risk of hospitalizations for gout among patients in the UK with a history of gout. Design, Setting, and Participants: This retrospective study included patients with a history of gout identified from the UK between 2006 and 2010 who were followed up through Primary Care Linked Data medical record linkage until 2017 and through the Hospital Episode Statistics database until 2020. Exposures: Serum urate levels at enrollment. Main Outcome and Measure: Rate of recurrent acute gout, ascertained by hospitalization, outpatient, and prescription/procedure records, and adjusted rate ratios using negative binomial regressions. Results: Among 3613 patients with gout (mean age, 60 years; 3104 [86%] men), 1773 gout flares occurred over a mean follow-up of 8.3 years. Of these, 1679 acute gout flares (95%) occurred in people with baseline serum urate greater than or equal to 6 mg/dL and 1731 (98%) occurred in people with baseline serum urate greater than or equal to 5 mg/dL. Rates of acute gout flares per 1000 person-years were 10.6 for participants with baseline urate levels less than 6 mg/dL, 40.1 for levels of 6.0 to 6.9 mg/dL, 82.0 for levels of 7.0 to 7.9 mg/dL, 101.3 for levels of 8.0 to 8.9 mg/dL, 125.3 for urate levels of 9.0 to 9.9 mg/dL, and 132.8 for levels greater than or equal to 10 mg/dL. Rate ratio of flares were 1.0, 3.37, 6.93, 8.67, 10.81, and 11.42, respectively, over 10 years (1.61 [1.54-1.68] per mg/dL). Rates of hospitalization per 1000 person-years during follow-up were 0.18 for those with baseline serum urate less than 6 mg/dL, 0.97 for serum urate of 6.0 to 6.9 mg/dL, 1.8 for serum urate of 7.0 to 7.9 mg/dL, 2.2 for serum urate of 8.0 to 8.9 mg/dL, 6.7 for serum urate of 9.0 to 9.9 mg/dL, and 9.7 for serum urate greater than or equal to 10 mg/dL. Rate ratios of hospitalization for gout, adjusting for age, sex, and race were 1.0, 4.70, 8.94, 10.37, 33.92, and 45.29, respectively (1.87 [1.57-2.23] per mg/dL). Conclusions and Relevance: In this retrospective study of patients with a history of gout, serum urate levels at baseline were associated with the risk of subsequent gout flares and rates of hospitalization for recurrent gout. These findings support using a baseline serum urate level to assess risk of recurrent gout over nearly 10 years of follow-up.


Assuntos
Gota , Ácido Úrico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Bases de Dados Factuais , Gota/sangue , Gota/epidemiologia , Hospitalização/estatística & dados numéricos , Estudos Retrospectivos , Ácido Úrico/sangue , Recidiva , Reino Unido/epidemiologia , Medição de Risco , Seguimentos , Exacerbação dos Sintomas
7.
Front Immunol ; 15: 1304167, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38304428

RESUMO

Introduction: We aimed to investigate the relationship between nuclear factor erythroid 2-related factor 2 (Nrf2) protein expression levels, lupus nephritis (LN) disease activity, and the degree of renal injury (based on the estimated glomerular filtration rate [eGFR]) in patients with LN. Methods: We selected 40 healthy control participants and 102 patients with LN who were treated in the Second Hospital of Jilin University, China, for inclusion in this study. Patients with LN were classified into LN with high-eGFR and LN with low-eGFR groups. Nrf2 protein levels were measured in the serum and renal tissues of the participants in both groups to assess the correlation between Nrf2 protein levels and different LN disease states. Results: There was a significantly positive correlation between serum Nrf2 protein levels, the degree of renal injury, and systemic lupus erythematosus disease activity index (SLEDAI) scores in patients with LN. Nrf2 protein levels were higher in the LN with high-eGFR group than in the healthy control and LN with low-eGFR groups. In follow-up patients in the LN high eGFR group, Nrf2 protein levels decreased significantly after remission of disease activity. Conclusion: Nrf2 protein expression has a dual role in patients with LN. Nrf2 protein levels not only correlate with disease activity in patients with LN, but also with the degree of kidney injury. Before implementing targeted therapy for Nrf2, evaluating both Nrf2 protein expression and the disease state in patients with LN is necessary to better identify and place each patient in an appropriate patient group.


Assuntos
Nefrite Lúpica , Fator 2 Relacionado a NF-E2 , Insuficiência Renal , Humanos , Biomarcadores/sangue , Rim/patologia , Nefrite Lúpica/sangue , Nefrite Lúpica/patologia , Fator 2 Relacionado a NF-E2/sangue , Insuficiência Renal/sangue , Insuficiência Renal/patologia
9.
BMC Pulm Med ; 24(1): 78, 2024 Feb 10.
Artigo em Inglês | MEDLINE | ID: mdl-38341544

RESUMO

BACKGROUND: Pulmonary hypertension (PH) is a complication of chronic kidney disease (CKD) that contributes to mortality. Sclerostin, a SOST gene product that reduces osteoblastic bone formation by inhibiting Wnt/ß-catenin signaling, is involved in arterial stiffness and CKD-bone mineral disease, but scanty evidence to PH. This study explored the relationship between sclerostin and PH in CKD 5, pre-dialysis end-stage kidney disease (ESKD) patients. METHODS: This cross-sectional prospective observational cohort study included 44 pre-dialysis ESKD patients between May 2011 and May 2015. Circulating sclerostin levels were measured using an enzyme-linked immunosorbent assay. PH was defined as an estimated pulmonary artery systolic pressure > 35 mmHg on echocardiography. RESULTS: Patients with higher sclerostin levels ≥ 218.18pmol/L had echocardiographic structural cardiac abnormalities, especially PH (P < 0.01). On multivariate logistic analysis, sclerostin over 218.19pmol/L was significantly associated with PH (odds ratio [OR], 41.14; 95% confidence interval [CI], 4.53-373.89, P < 0.01), but multivariate Cox regression analysis showed the systemic vascular calcification score over 1 point (Hazard ratio [HR] 11.49 95% CI 2.48-53.14, P = 0.002) and PH ([HR] 5.47, 95% CI 1.30-23.06, P = 0.02) were risk factors for all-cause mortality in pre-dialysis ESKD patients. CONCLUSIONS: Serum sclerostin and PH have a positive correlation in predialysis ESKD patients. The higher systemic vascular calcification score and PH have an association to increase all-cause mortality in pre-dialysis ESKD patients.


Assuntos
Proteínas Adaptadoras de Transdução de Sinal , Hipertensão Pulmonar , Falência Renal Crônica , Insuficiência Renal Crônica , Calcificação Vascular , Humanos , Proteínas Morfogenéticas Ósseas , Estudos Transversais , Diálise/efeitos adversos , Hipertensão Pulmonar/sangue , Hipertensão Pulmonar/complicações , Falência Renal Crônica/sangue , Falência Renal Crônica/complicações , Estudos Prospectivos , Diálise Renal/efeitos adversos , Proteínas Adaptadoras de Transdução de Sinal/sangue
10.
BMC Geriatr ; 24(1): 147, 2024 Feb 13.
Artigo em Inglês | MEDLINE | ID: mdl-38350861

RESUMO

BACKGROUND: The relationship of testosterone and estradiol concentrations with cognitive function among community-dwelling older men was inconclusive. To examine the association of serum testosterone and estradiol concentrations with cognitive function in older men with or without vascular risk factors (VRFs). METHODS: This cross-sectional study consisted of 224 community-dwelling men aged 65-90 years in the Songjiang District of Shanghai, China. Serum testosterone and estradiol were measured by electrochemiluminescence immunoassay. The following five factors were defined as VRFs in this study: obesity, history of hypertension, diabetes, stroke, and coronary heart disease. Multivariable linear regression was used to examine the association of testosterone and estradiol with the Mini-Mental State Examination (MMSE) in participants with or without VRF. Restricted cubic spline (RCS) regression was performed to account for the nonlinearity of these associations. RESULTS: An inverted "U" shaped non-linear relationship was found between testosterone concentration and MMSE score in men with one VRF (P overall =.003, non-linear P =.002). Estradiol showed an inverted "U" shaped non-linear relationship with MMSE score independent of VRFs (men without VRF, P overall =.049, non-linear P =.015; men with one VRF, overall P =.007, non-linear P =.003; men with two or more VRFs, overall P =.009, non-linear P =.005). CONCLUSION: In older men, an optimal level of sex steroid concentration may be beneficial to cognitive function and the VRFs should be considered when interpreting the relationship between sex steroid and cognitive function.


Assuntos
Cognição , Estradiol , Hormônios Esteroides Gonadais , Idoso , Humanos , Masculino , China/epidemiologia , Estudos Transversais , Estradiol/sangue , Hormônios Esteroides Gonadais/sangue , Vida Independente , Fatores de Risco , Testosterona
11.
Allergol. immunopatol ; 52(1): 65-70, 01 jan. 2024. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-229176

RESUMO

Background: Atopic dermatitis (AD) is a relapsing, chronic cutaneous inflammatory disease with onset, in general, in early childhood. Chronic skin inflammation is associated with overproduction of reactive oxygen species (ROS) such as superoxide and hydrogen peroxide. Oxidative stress, an imbalance between the production of free radicals and antioxidant defense, results in tissue inflammation due to the upregulation of genes that encode inflammatory cytokines. This condition plays an important role in the pathogenesis of AD. Objective: To compare the antioxidant defense in children and adolescents with AD with that of healthy individuals and to verify the association of antioxidant defense with disease severity and nutritional status. Methods: Cross-sectional study that evaluated 48 children and adolescents with AD and 25 controls for nutritional assessment (body mass index z score [BMIZ] and height for age z score [HAZ]) and levels of vitamins A, C, E, and D, zinc (Zn), copper (Cu), antioxidant enzymes (superoxide dismutase [SOD], catalase [CAT], glutathione peroxidase [GPx]), high-sensitivity C-reactive protein (CRP) and interleukin 33 (IL-33). Results: There was no significant difference in the comparison between AD and control groups for serum levels of vitamins (A, D, C, and E), copper, and antioxidant enzymes. Serum zinc levels were higher in the AD group (β = 24.20; 95% CI 13.95–34.91; P < 0.001) even after adjusting the BMIZ, HAZ, gender, IL-33, and CRP. Children and adolescents with moderate or severe AD compared to mild AD (SCORAD – 36.7±17.4 vs 11.8 ± 3.9; P < 0.001) had lower values of the vitamin E/total lipid ratio (3.68 [0.29;12.63] vs 5.92 [3.27;17.37]; P = 0.013) (AU)


Assuntos
Humanos , Masculino , Feminino , Pré-Escolar , Criança , Adolescente , Antioxidantes/sangue , Dermatite Atópica/sangue , Dermatite Atópica/imunologia , Estresse Oxidativo , Vitamina E/sangue , Vitamina K/sangue , Zinco/sangue , Índice de Gravidade de Doença , Estudos Transversais , Interleucina-33/imunologia , Vitamina A/sangue
12.
Med. clín (Ed. impr.) ; 162(1): 1-8, ene. 2024. tab
Artigo em Inglês | IBECS | ID: ibc-229039

RESUMO

Background ILD is a common manifestation in pSS and is associated with an increased risk of death. APCA are strongly expressed by hyperplastic alveolar epithelial cells in the fibrotic lung and are associated with an accelerated decline in lung function in IPF. In the present study, we aimed to evaluate the clinical utility of APCA in ILD patients with pSS. Methods Clinical, laboratory, PFTs and imaging data from pSS patients were reviewed, and the ESSDAI was utilized to evaluate disease activity. HRCT semiquantitative scoring was conducted. We compared the clinical characteristics of pSS patients with and without ILD and carried out logistic regression analysis of risk factors for ILD in pSS. Results A total of 74 patients with pSS and 40 HCs were included in the study. ILD was more commonly observed in the APCA-positive group than in the APCA-negative group. The quantitative levels of APCA were positively correlated with the imaging score. Multivariate analysis found that the long disease duration, elevated APCA and elevated KL-6 level were independent risk factors for ILD in pSS patients. The area under ROC curve for APCA was 0.6618, and the threshold concentration was 153.82ng/ml (sensitivity 45.24%, specificity 87.50%). Conclusion APCA level is an independent risk factor and might be a potential biomarker for ILD in patients with pSS (AU)


Antecedentes La enfermedad pulmonar intersticial (EPI) es una manifestación común del síndrome de Sjögren primario (SSp) y está relacionada con un mayor riesgo de muerte. Los anticuerpos anticélulas parietales (AACP) están fuertemente expresados por células epiteliales alveolares proliferantes en los pulmones fibróticos y están relacionados con la disminución acelerada de la función pulmonar en la gibrosis pulmonar idiopática. En este estudio, pretendemos evaluar la aplicación clínica de la AACP en pacientes con EPI con SSp. Método Se revisaron los datos clínicos, de laboratorio, de función pulmonar e imágenes de los pacientes con SSp y se utilizó la ESSDAI para evaluar la actividad de la enfermedad en general. Se registraron 5 características principales de imagen pulmonar de la EPI y 2 radiólogos ciegos experimentados realizaron una puntuación semicuantitativa de HRCT de forma independiente. Comparamos las características clínicas de los pacientes con y sin EPI con SSp y realizamos un análisis de regresión logística de los factores de riesgo de EPI en SSp. Resultados Un total de 74 pacientes con SSp y 40 controles sanos fueron incluidos en el estudio. La EPI es más común en el grupo positivo de AACP que en el grupo negativo de APCA. El nivel cuantitativo de AACP, está positivamente relacionado con la puntuación de imagen. El análisis multifactorial encontró que la larga duración, el aumento de los niveles de AACP y el aumento de los niveles de KL-6 fueron factores de riesgo independientes para la EPI en pacientes con SSp. El área bajo la curva ROC de AACP es de 0,6618 y la concentración umbral fue de 153,82 ng/ml (sensibilidad 45,24% y especificidad 87,50%). Conclusiones Los niveles de AACP son un factor de riesgo independiente y pueden ser biomarcadores potenciales de EPI en pacientes con SSp (AU)


Assuntos
Humanos , Masculino , Feminino , Adulto , Pessoa de Meia-Idade , Idoso , Doenças Pulmonares Intersticiais/diagnóstico , Síndrome de Sjogren/diagnóstico , Autoanticorpos/sangue , Biomarcadores/sangue , Fatores de Risco
13.
Sci Rep ; 14(1): 594, 2024 01 05.
Artigo em Inglês | MEDLINE | ID: mdl-38182624

RESUMO

The present study investigated primary care patients and compared self-reported sexual health in Swedes and Middle Easterners; analysed differences within and between the groups and analysed differences in 25-hydroxyvitamin D [25(OH)D] levels between the groups. 522 patients responded to a health questionnaire that included items on sexual health: 225 Middle Easterners from Iran, Iraq, and Turkey and 297 Swedes. Logistic regression was used to calculate the odds ratio (OR). Middle Easterners reported less sexual dysfunction than Swedes, and 75.8% of them and 18.9% of Swedes presented a 25(OH)D of < 50 nmol/L. The crude OR for reporting sexual dysfunction was 70% higher in Swedes compared to Middle Easterners (OR 1.70, 95% CI 1.15-2.50). This OR remained significant after adjustment for age, gender, waist circumference, and reported sexual desire. However, the significance disappeared after additional adjustment for 25(OH)D. In both groups, more females than males reported insufficient sexual desire. More female Middle Easterners reported sex life dissatisfaction. More female Swedes reported sexual dysfunction. Vitamin D could explain an association between gender and sex life dissatisfaction in Middle Easterners, and age could explain an association between gender and sexual dysfunction in Swedes. Age, waist circumference, and 25(OH)D levels were significant covariates in the logistic regression models. Results from the present study suggest that 25(OH)D variation partly explains differences in sexual dysfunction between the groups and between genders within the groups. Vitamin D therapy should be investigated to determine if these results are clinically useful.


Assuntos
Disfunções Sexuais Fisiológicas , Vitamina D , Vitaminas , Feminino , Humanos , Masculino , Atenção Primária à Saúde , Suécia , Vitamina D/sangue , População do Oriente Médio , Disfunções Sexuais Fisiológicas/epidemiologia
14.
Zhonghua Nei Ke Za Zhi ; 63(1): 35-40, 2024 Jan 01.
Artigo em Chinês | MEDLINE | ID: mdl-38186115

RESUMO

IgG4 is a subclass of IgG. Elevated serum IgG4 levels are an important serological feature of IgG4 related diseases and serve as a serological marker for assessing disease activity and severity. The harmonization of IgG4 detection is crucial for its clinical application. National Clinical Research Center for Dermatologic and Immunologic Diseases (Peking Union Medical College Hospital), Experimental Diagnosis Research Committee, Rheumatology and Immunology Physicians Committee of Chinese Medical Doctor Association, Autoantibodies Detection Committee, and Chinese Rheumatism Data Center have organized clinical and laboratory experts to draft this consensus, aiming to standardize IgG4 detection and provide guideline for clinician and laboratory experts to appropriate utility and interpret IgG4 results in China.


Assuntos
Imunoglobulina G , Humanos , China , Consenso , Imunoglobulina G/sangue
16.
Science ; 383(6680): eadg7942, 2024 01 19.
Artigo em Inglês | MEDLINE | ID: mdl-38236961

RESUMO

Long Covid is a debilitating condition of unknown etiology. We performed multimodal proteomics analyses of blood serum from COVID-19 patients followed up to 12 months after confirmed severe acute respiratory syndrome coronavirus 2 infection. Analysis of >6500 proteins in 268 longitudinal samples revealed dysregulated activation of the complement system, an innate immune protection and homeostasis mechanism, in individuals experiencing Long Covid. Thus, active Long Covid was characterized by terminal complement system dysregulation and ongoing activation of the alternative and classical complement pathways, the latter associated with increased antibody titers against several herpesviruses possibly stimulating this pathway. Moreover, markers of hemolysis, tissue injury, platelet activation, and monocyte-platelet aggregates were increased in Long Covid. Machine learning confirmed complement and thromboinflammatory proteins as top biomarkers, warranting diagnostic and therapeutic interrogation of these systems.


Assuntos
Ativação do Complemento , Proteínas do Sistema Complemento , Síndrome Pós-COVID-19 Aguda , Proteoma , Tromboinflamação , Humanos , Proteínas do Sistema Complemento/análise , Proteínas do Sistema Complemento/metabolismo , Síndrome Pós-COVID-19 Aguda/sangue , Síndrome Pós-COVID-19 Aguda/complicações , Síndrome Pós-COVID-19 Aguda/imunologia , Tromboinflamação/sangue , Tromboinflamação/imunologia , Biomarcadores/sangue , Proteômica , Masculino , Feminino , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso
17.
Science ; 383(6680): eadf2341, 2024 01 19.
Artigo em Inglês | MEDLINE | ID: mdl-38236959

RESUMO

Liquid biopsies enable early detection and monitoring of diseases such as cancer, but their sensitivity remains limited by the scarcity of analytes such as cell-free DNA (cfDNA) in blood. Improvements to sensitivity have primarily relied on enhancing sequencing technology ex vivo. We sought to transiently augment the level of circulating tumor DNA (ctDNA) in a blood draw by attenuating its clearance in vivo. We report two intravenous priming agents given 1 to 2 hours before a blood draw to recover more ctDNA. Our priming agents consist of nanoparticles that act on the cells responsible for cfDNA clearance and DNA-binding antibodies that protect cfDNA. In tumor-bearing mice, they greatly increase the recovery of ctDNA and improve the sensitivity for detecting small tumors.


Assuntos
Ácidos Nucleicos Livres , Neoplasias , Animais , Camundongos , Biomarcadores Tumorais/sangue , Ácidos Nucleicos Livres/sangue , DNA Tumoral Circulante/sangue , Biópsia Líquida , Mutação , Neoplasias/sangue , Neoplasias/diagnóstico , Humanos , Feminino , Camundongos Endogâmicos BALB C , Sensibilidade e Especificidade
18.
Science ; 383(6680): 260-261, 2024 01 19.
Artigo em Inglês | MEDLINE | ID: mdl-38236970
20.
BMC Pregnancy Childbirth ; 24(1): 18, 2024 Jan 02.
Artigo em Inglês | MEDLINE | ID: mdl-38166706

RESUMO

BACKGROUND: Maternal lipid metabolism fluctuations have been shown to increase the risk of adverse pregnancy outcomes. However, there is no consensus over what constitutes normal maternal lipid values during twin pregnancy. Therefore, the aim of this study was to establish a serum lipid reference range for a twin pregnancy. METHODS: A retrospective survey was conducted, from 2011 to 2021, at the Peking University Third Hospital. A total of 881 twin pregnancies, with lipid data from early and middle pregnancies, were included. After excluding those with adverse pregnancy outcomes, we performed a descriptive analysis of total cholesterol (TC), triglycerides (TG), high-density lipid cholesterol (HDL-C), and low-density lipid cholesterol (LDL-C) levels, using the mean and standard deviation to determine appropriate percentiles. We later determined the lipid reference range in early and middle pregnancy based on the initial results. We evaluated Inappropriate lipid levels associations with pregnancy outcomes, including gestational diabetes, pregnancy-induced hypertension, small for gestational age. RESULTS: (1) Serum levels of TC, TG, LDL-C, and HDL-C increased significantly from early to late pregnancy, where the greatest increase was observed in TG. (2) Based on the results, we recommend that TC, TG, and LDL-C serum reference values during early and middle pregnancy should be less than the 95th percentile. On the other hand, HDL-C should be greater than the 5th percentile. During early pregnancy, the values recommended are TC < 5.31 mmol/L, TG < 2.25 mmol/L, HDL > 1.02 mmol/L and LDL < 3.27 mmol/L, and those during middle pregnancy are TC < 8.74 mmol/L, TG < 4.89 mmol/L, HDL > 1.25 mmol/L and LDL < 5.49 mmol/L, while the values during late pregnancy are TC < 9.11 mmol/L, TG < 6.70 mmol/L, HDL > 1.10 mmol/L and LDL < 5.81 mmol/L. Higher levels of blood lipids were associated with GDM, PE, SGA. CONCLUSIONS: We suggested a reference ranges for blood lipids during the twin pregnancy in a Chinese population. The reference ranges recommended by this study can be used to identify women with twin pregnancies using unfavorable lipid values. Higher levels of blood lipids were associated with adverse pregnancy outcomes.


Assuntos
Lipídeos , Resultado da Gravidez , Gravidez de Gêmeos , Feminino , Humanos , Gravidez , Colesterol , HDL-Colesterol , LDL-Colesterol , Diabetes Gestacional , Lipídeos/sangue , Valores de Referência , Estudos Retrospectivos , Triglicerídeos/sangue , China
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