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Objective To investigate the role of hydrogen therapy in reducing radiation-induced lung injury and the specific mechanism. Methods Forty C57BL/6 mice were randomly divided into four groups: normal control group, model group, hydrogen therapy group I, and hydrogen therapy group II. A mouse model of radiation-induced lung injury was established. The pathological changes in the lung tissue of the mice were examined with HE staining. Immunofluorescence staining was used to detect the expression of surface markers of M1 and M2 macrophages to observe macrophage polarization. The expression of interleukin (IL)-6, tumor necrosis factor-α (TNF-α), and IL-10 in the lung tissue was measured by immunohistochemistry. The expression of nuclear factor-kappa B (NF-κB) p65 and phosphorylated NF-κB (P-NF-κB) p65 was measured by Western blot. Results HE staining showed that compared with the control group, the model group exhibited alveolar septal swelling and thickening, vascular dilatation and congestion, and inflammatory cell infiltration in the lung tissue; the hydrogen groups had significantly reduced pathological damage and inflammatory response than the model group, with more improvements in hydrogen group II than in hydrogen group I. Immunohistochemical results showed that compared with those in the control group, the levels of the inflammatory cytokines IL-6 and TNF-α were significantly increased in the model group; the hydrogen groups showed significantly decreased IL-6 and TNF-α levels and a significantly increased level of the anti-inflammatory factor IL-10 than the model group, which were more marked in hydrogen group II than in hydrogen group I. Immunofluorescence results showed that compared with the control group, the expression of the surface marker of M1 macrophages in the model group was significantly upregulated; the hydrogen groups showed significantly downregulated M1 marker and significantly upregulated M2 marker, and hydrogen group II showed significantly increased M2 marker compared with hydrogen group I. Western blot results showed that compared with that in the control group, the ratio of P-NF-κB p65/NF-κB p65 in the model group was significantly increased; the P-NF-κB p65/NF-κB p65 ratio was significantly reduced in the hydrogen groups than in the model group, and was significantly lower in hydrogen group II than in hydrogen group I. Conclusion Hydrogen inhalation therapy may reduce the inflammatory response of radiation-induced lung injury by inhibiting the NF-κB signaling pathway to promote the polarization of the macrophage M1 subtype to the M2 subtype.
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BACKGROUND AND PURPOSE: Poor bowel preparation increases the difficulty of colonoscopy and affects lesion detection. In this study, we investigated the usefulness of a new bowel preparation method using polyethylene glycol electrolyte formulation containing ascorbic acid (PEG plus ascorbic acid: PEG-Asc, MOVIPREP) to improve bowel cleansing and shorten preparation time. METHODS: This was a single-center, retrospective study. In the new method, patients were instructed to take a laxative the day before the examination and PEG1L on the day of the examination. In addition, we instructed the patients to walk, which we designed. The primary endpoints were the degree of bowel cleansing (assessed by the Boston bowel preparation scale, BBPS) and time to the cecum. RESULTS: The conventional group reached the cecum in 606.5±225.8 seconds (mean±SD), whereas the introduced group reached the cecum in 500±217.1 seconds, a significantly shorter time ( P <0.05). In the BBPS, the score in the introduced group was significantly higher ( P <0.01): 6.8±2.14 points in the conventional group and 8.6±0.74 points in the introduction group. CONCLUSION: Pretreatment combining the 1L weight loss method and walking improves bowel cleansing and shortens the time to reach the cecum.
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Catárticos , Polietilenglicoles , Humanos , Estudios Retrospectivos , Ácido Ascórbico , Colon , Colonoscopía/métodosRESUMEN
OBJECTIVE To explore the construction of mind map by clinical pharmacists for the consultation of pulmonary nocardiosis and its application in clinical practice, and to provide reference for promoting the correct selection of nocardiosis treatment drugs in clinical practice and ensuring drug safety and efficacy. METHODS A total of 7 patients with Nocardia pulmonary infection from January 2017 to April 2022 in our hospital were collected. Based on evidence-based medicine, a consultation mind map (mainly including understanding the medical history, identifying infectious bacteria, identifying risk factors, developing treatment plans, and conducting evaluations) was constructed to address the difficulties of large differences in drug sensitivity among different strains of Nocardia and numerous adverse reactions of Compound sulfamethoxazole as a first-line drug. The treatment plan was developed for 7 patients with pulmonary nocardiosis, and whole-process pharmaceutical care was provided. RESULTS Combined with the mind map, different antibiotic combination regimens were given according to the drug sensitivity results of Nocardia, the different species of Nocardia, and the patient’s allergy history. Among them, 4 cases were treated with imipenem cilastatin, the patients receiving Compound sulfamethoxazole and linezolid for a long time were given full pharmaceutical care, and the adverse drug reactions were timely treated.CONCLUSIONS Clinical pharmacists apply the consultation mind map of pulmonary nocardiosis to the treatment of inpatients, take advantage of pharmacy, participate in clinical drug therapy, and really play a role in the clinical treatment team so as to promote rational drug use.
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Acute respiratory distress syndrome (ARDS) continues to be one of the most life-threatening conditions for patients in the intensive care unit (ICU). The 2023 European Society of Intensive Care Medicine guidelines on ARDS: definition, phenotyping and respiratory support strategies (2023 Guideline) update the 2017 An Official American Thoracic Society/European Society of Intensive Care Medicine/Society of Critical Care Medicine clinical practice guideline: mechanical ventilation in adult patients with ARDS (2017 Guideline), including 7 aspects of 3 topics of definitions, phenotyping, and respiratory support strategies [including high flow nasal cannula oxygen (HFNO), non-invasive ventilation (NIV), neuromuscular blocking agents (NMBA), extracorporeal life support (ECLS), positive end-expiratory pressure (PEEP) with recruitment maneuvers (RM), tidal volume (VT), and prone positioning]. 2023 Guideline review and summarize the literature since the publication of the 2017 Guideline, covering ARDS and acute hypoxemic respiratory failure, as well as ARDS caused by novel coronavirus infection. Based on the most recent medical evidence, the 2023 Guideline provide clinicians with new ideas and approaches for nonpharmacologic respiratory support strategies for adults with ARDS. This article provides interpretation of the new concepts, the new approaches, the new recommended grading and new levels of evidence for ARDS in the 2023 Guideline.
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Adulto , Humanos , COVID-19 , Respiración Artificial , Respiración con Presión Positiva , Síndrome de Dificultad Respiratoria del Recién Nacido/terapia , Ventilación no InvasivaRESUMEN
Objective:To explore the clinical and pathological characteristics and prognostic factors of gastric neuroendocrine carcinoma(G-NEC)and gastric mixed adenoendocrine carcinoma(G-MANEC).Methods:Retrospective analysis was conducted on the clinical data of 67 patients with G-NEC and G-MANEC who underwent surgical treatment at Heping Hospital Affiliated to Changzhi Medical College from May 2015 to May 2023.The study included an analysis of the pathological characteristics distinguishing G-NEC from G-MANEC.Results:Com-pared to gastric adenocarcinoma,patients with G-NEC and G-MANEC in the stomach showed a higher incidence of gastric cancer in the male gastric cardia and were diagnosed at a later age.Tumors with larger diameters increase susceptibility to anemia,low albumin levels,and in-vasion of nerves and vasculature.Deeper tumor infiltration is associated with increased local lymph node metastases,later TNM staging,and a higher likelihood of distant metastasis post-surgery.The prognosis of G-NEC and G-MANEC is worse than that of gastric adenocarcinoma(P=0.001).However,there is no statistically significant difference in the pathological characteristics(P>0.05)and prognosis analysis(P=0.212)between G-NEC and G-MANEC.Univariate survival analysis identified age,preoperative albumin,preoperative CEA,number of lymph node metastases,TNM staging,and postoperative distant metastasis as risk factors affecting patient's overall survival(OS).In the multivariate ana-lysis,age,preoperative albumin,TNM staging,and postoperative distant metastasiswere identified as independent risk factors for OS.Con-clusions:There is a significant difference in clinical characteristics between G-NEC,G-MANEC,and gastric adenocarcinoma,often diagnosed at an advanced stage,which is prone to distant metastasis post-surgery.Poor prognosis is observed in patients aged over 60 years,with pre-operative albumin<40g/L,TNM stage Ⅱ/Ⅲ,and postoperative distant metastasis.
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Objective:To investigate the characteristics of congenital hypothyroidism (CH) in premature infants and analyze the predictors of transient congenital hypothyroidism(TCH) and permanent CH (PCH).Methods:A retrospective study was conducted on the preterm infants with CH born in Beijing from January 2008 to June 2018. They were screened, diagnosed and treated by the Beijing Neonatal Disease Screening Center. They were assigned into TCH and PCH groups according to the clinical prognosis. Univariate analysis and Logistic regression analyses were used to determine the predictors of PCH, and the receiver operating characteristic curve (ROC) was drawn to determine the best cut-off point.Results:A total of 2 216 892 newborns were screened, 15 382 were initially screened positive, the median time of screening was 4(4,10) d after birth, and the median time of postnatal reexamination was 30(22,42) d after birth, 14 576 newborns were reexamined, the reexamination rate was 94.8%. A total of 92 preterm infants were diagnosed with CH, of which 60 were TCH, accounting for 65.2%; 28 were PCH, accounting for 30.4%; and 4 were lost to follow-up, accounting for 4.3%. Univariate analysis showed that in the PCH group, the abnormal rate of thyroid B-ultrasound, levothyroxine (LT4) dose at 1-year old, thyrotropin (TSH) level at 2 years old, LT4 dose at 2 years old, LT4 dose and free thyroxine (FT4) level at 3 years old were higher than those in the TCH group. Logistic regression analysis revealed that abnormal B-ultrasound ( OR=12.184,95% CI 2.270~65.403), and elevated TSH level at 2 years old ( OR=2.033,95% CI 1.280~3.228),increased LT4 dose at 3 year old ( OR=21.435,95% CI 3.439~133.584) are the risk factors for PCH. The maximum area under ROC curve was 0.798 at 3 years old (95% CI 0.680~0.916), the best cut-off point was 1.3 μg/(kg·d) for the 3-year-old drug dose; followed by 2-year-old TSH level, which was 0.683 (95% CI 0.548~0.817), the best cut-off point was 4.51 μIU/ml. Conclusions:TCH accounted for a large proportion of preterm infants with CH. During the follow-up, the increased LT4 dose at 3 years old and the elevated TSH level at 2 years old were the early predictors of PCH.
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Objective:To study the effect of ranibizumab on retinal oxidative stress in a rat model of choroidal neovascularization (CNV) and its mechanism.Methods:Sixty SPF male SD rats aged 10 weeks were randomly divided into normal control group, model control group, ranibizumab group, nuclear factor erythroid 2-related factor 2 (Nrf2) inhibitor (ML385) group, ranibizumab+ ML385 group, with 12 rats in each group according to a random number table.Except for the normal control group, the CNV model was established in the other four groups via krypton laser induction.According to grouping, the ranibizumab group, ML385 group and ranibizumab+ ML385 group were intravitreally injected with 1 μl of ranibizumab, ML385 and ranibizumab+ ML385, respectively.Model control group and normal control group received an intravitreal injection of normal saline of equal volume.The CNV area was measured through choroidal wholemounts.Pathological change of the retina was observed by hematoxylin and eosin staining.Expressions of Nrf2, superoxide dismutase (SOD) and quinone oxidoreductase 1 (NQO1) were detected using Western blot and real-time PCR.The use and care of animals complied with laboratory animal welfare guidelines.The study protocol was approved by the Laboratory Animal Welfare and Ethics Committee of Tengzhou Central People's Hospital (No.JN.No20210214S1200430[121]).Results:CNV areas of the model control group, ML385 group and ranibizumab+ ML385 group were (23.01±1.52)×10 3, (30.23±2.01)×10 3 and (18.56±1.85)×10 3 μm 2, respectively, which were significantly higher than (12.35±1.22)×10 3 μm 2 of ranibizumab group (all at P<0.001). The CNV area of ranibizumab+ ML385 group was smaller than that of model control group and ML385 group, and the CNV area of ML385 group was larger than that of model control group, showing statistically significant differences (all at P<0.001). Hematoxylin and eosin staining showed that the structural damage of the retinal pigment epithelium-choroid-sclera complex was slighter in ranibizumab group than model control group, severer in ranibizumab+ ML385 group than ranibizumab group but slighter than model control group, severer in ML385 group than model control group.The mRNA and protein expressions of Nrf2, SOD and NQO1 of ranibizumab group were lower than those of normal control group but higher than those of model control group, ML385 group and ranibizumab+ ML385 group, and the differences were statistically significant (all at P<0.05). The mRNA and protein expressions of Nrf2, SOD and NQO1 were higher in ranibizumab+ ML385 group than model control group and ML385 group, showing statistically significant differences (all at P<0.05). Conclusions:Ranibizumab can inhibit the growth of CNV induced by krypton laser and reduce RPE damage caused by retinal oxidative stress.The mechanism is related to the activation of Nrf2/ARE pathway.
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Objective:To analyze the adverse psychological state and its influencing factors in patients with dysphagia after cerebral stroke.Methods:In this cross-sectional survey, 120 patients with dysphagia after cerebral stroke in the Department of Neurology, Stroke Center in Henan Provincial People′s Hospital from January 2021 to March 2022 were selected with convenience sampling method for questionnaire survey. The depression anxiety stress scale-21 (DASS-21), family adaption partnership growth affection resolve index (APGAR) and social support rating scale (SSRS) were used to evaluate the adverse psychological state, family care degree and social support in those patients. And general data of the patients were collected too. A total of 120 questionnaires were sent out and reclaimed, among them 116 were valid. One patient withdrew from the study on his own. Finally, 115 patients were included as research objects. Analysis of variance and LSD-t test were used to compare the adverse psychological state of patients with different characteristics, Pearson correlation analysis was used to analyze the correlation between adverse psychological state and family care and social support. The multivariate linear regression analysis was used to analyze the influencing factors of adverse psychological state in patients with dysphagia after cerebral stroke. Results:The total DASS-21 score in the 115 patients with dysphagia after stroke was (43.32±6.58) points, of which, it was (16.02±3.45) points in the depression dimension, (14.55±3.27) points in anxiety dimension, (12.75±4.01) points in stress dimension; the total score of APGAR was (5.15±0.87) points, the total score of SSRS was (28.75±5.16) points. Family care and social support were both negatively correlated with adverse psychological state in those patients ( r=-0.514, -0.433, both P<0.05). Marital status, per capita monthly income, number of complications, family care and social support were the influencing factors of adverse psychological state in patients with dysphagia after cerebral stroke (β′=0.501, -0.365, 0.234, -0.269, -0.372, all P<0.05). Conclusions:Patients with dysphagia after cerebral stroke have a higher degree of adverse psychological state. Marital status, per capita monthly income, complications, family care and social support can affect the mental health in those patients.
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AIM: Diabetes mellitus affects the pharmacokinetics of cytochrome P450 3A4 / 5 (CYP3A4/5) substrates. We evaluated the relationship between haemoglobin A1c (HbA1c) levels and the pharmacokinetics of controlled-release tacrolimus. METHODS: This retrospective observational cohort study included kidney transplant recipients (>18 years) receiving controlled-release tacrolimus orally. CYP3A5 genotypes were categorized as expressers (*1/*1 or *1/*3) and non-expressers (*3/*3). Multiple linear regression analysis determined the predictors for trough concentration / dose-normalized by body weight (C/D) ratio of tacrolimus at 7 days, 6 months and 12 months after administration. Correlations between the C/D ratio and HbA1c levels at baseline, 6 and 12 months after tacrolimus initiation were evaluated with Bonferroni correction. RESULTS: Out of 42 patients (CYP3A5 expressers, n=56, and non-expressers, n= 83), the multiple linear regression analysis showed that the C/D ratio on Day 7 was marginally higher in CYP3A5 non-expressers than in CYP3A5 expressers. Factors affecting the elevation of tacrolimus C/ D ratio after 6 and 12 months of treatment were male sex and CYP3A5 non-expressers and increased HbA1c levels and CYP3A5 non-expressers, respectively. The C/D ratio and HbA1c levels after 12 months was positively correlated in CYP3A5 non-expressers (y=54.6x+194.6, R=0.63, P=0.004, Bonferroni correction). Furthermore, intra-individual changes in the C/D ratio and HbA1c levels from 6 to 12 months were nearly correlated (y=54.5x + 20.2, R=0.41, P=0.036, Bonferroni correction). CONCLUSION: HbA1c and CYP3A5 genotypes might be considered to understand the inter- and intra-individual variability in blood tacrolimus concentrations after 6 months post-kidney transplantation.
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Objective:To explore the effect of combining functional electric stimulation (FES) with upper limb cycle training in rehabilitating upper limb motor function and ability in the activities of daily living after a stroke.Methods:Sixty hemiplegic stroke survivors were randomly divided into an experimental group and a control group. In addition to conventional rehabilitation therapy, the experimental group underwent 20 minutes of MOTOmed upper limb cycle training every day while receiving FES. The control group received only the 20 minutes of cycle training. Before and after 4 weeks, Brunnstrom staging was used to quantify hand and upper extremity functioning. The Fulg-Meyer assessment upper extremity scale (FMA-UE) and the modified Barthel index (MBI) were also used before the training and after 1, 2, 3 and 4 weeks of the treatments.Results:After 4 weeks of treatment, significant differences were observed in the average BS scores of both groups compared with before the intervention. The average hand and upper limb stages of the experimental group were significantly better than the control group′s averages. Significant improvement was also observed in the average FMA-UE and MBI scores of both groups after only one week, with significantly greater improvement in the experimental group.Conclusions:Supplementing upper limb cycle training with FES can significantly improve the upper limb motor function and ability in the activities of daily living of stroke survivors. It is more effective than the MOTOmed exercise alone.
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Objective:To identify pathogenicity of the potential splicing variants in two Chinese Han patients with osteogenesis imperfecta.Methods:Genomic DNA was extracted using the conventional phenol-chloroform method; whole exome sequencing (WES) was used to analysis the disease-related variants in the two probands; Minigene assay was used to identify pathogenicity of the variants found in the patients' genome that possibly affect RNA splicing.Results:Two potential splicing variants, c.858+1_858+5delGTAAG in intron 12 of COL1A1 and c.1405-7C>T in intron 24 of COL1A2, were found in proband 1 and proband 2, respectively. In addition, a missense mutation, c.2972G>T (p.G991V) in exon 45 of COL1A2, was detected in proband 2. Minigene assay revealed that the variant in proband 1 caused the skipping of exon 12, while the variant in proband 2 did not lead to aberrant splicing. G199 of the COL1A2 in proband 2 was a highly conserved amino acid site, and the results suggested that c.2972G>T (p.G991V) may be the real pathogenic variant by the means of bioinformatics analysis.Conclusion:The variant c.858+1_858+5delGTAAG in COL1A1 was a causative variant that led to OI in proband 1, while the missense variant c.2972G>T (p.G991V) in COL1A2 was the cause of OI in proband 2, instead of the variant c.1405-7C>T. Minigene assay for potential splicing variants detected by WES could not only validate the pathogenicity of the candidate variants and enrich the mutation spectrum of OI, but also lay the foundation for patients' prenatal diagnosis and subsequent mechanism research.
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Objective To investigate the expression and mechanism of microRNA-148b (miRNA-148b) in high glucose-induced renal tubular injury.Method HK-2 cells cultured in vitro were divided into normal glucose group,mannitol hypertonic control group and high glucose group.After 48 hours of culture,the expression of miRNA-148b was detected by real-time quantitative PCR.2',7'-Dichlorodihydrofluorescein diacetate (DCFH-DA) was used for detecting production of ROS and observed under fluorescence microscope for analysis;The expression of AMPKot1,Bcl-2,NOX2,NOX4,activated caspase3 (cleaved-caspase3) were detected by Western blotting.Results Compared with the normal glucose group,the expression of miRNA-148b was up-regulated in HK-2 cells in high glucose group and hypertonic group (P < 0.01),and the production of ROS increased (P < 0.01).The expression of NOX2 and NOX4 was increased,AMPKα1 and Bcl-2 decreased,and cleaved caspase-3 was increased (all P < 0.01).Conclusions HG up-regulated miRNA-148b expression and down-regulated its target gene AMPKα1 which promotes the expression of NOX2 and NOX4 in HK-2 cells.MiRNA-148b promotes apoptosis of HK-2 cells via increasing production of ROS and enhancing cleaved-caspase3 for Bcl-2 insufficiency.The tubular toxicity of high glucose is partly due to osmotic pressure.MiRNA-148b may be involved in the pathological injury of diabetic nephropathy and is expected to become a new therapeutic target for diabetic nephropathy.
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Objective:To study the adverse reactions (ADRs) of recombinant human erythropoietin (rHuEPO) to provide refer-ence for clinical rational and safe medication. Methods:ADRs induced by rHuEPO reported at home and abroad were collected and analyzed in respects of age,gender,original illness, occurrence time, clinical manifestations and the results. Results: After the re-trieval,there were 149 cases of rHuEPO-induced ADRs with the damage of cardio vascular system, hematologic system, skin and its appendents accounting for 43.4%,20.8% and 12.7%,respectively. The top three main clinical manifestations of rHuEPO drug reac-tions were hypertension,pure red-cell aplastic anemia (PRCA) and hyperkalemia. The occurrence time should be paid particular at-tention in 5-12 weeks after the administration (43.0%). Conclusion:Physicians should be aware of rHuEPO-induced ADRs (espe-cially the occurrence time),pay attention to patients' medication education and avoid serious adverse reactions.
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Intracranial aneurysm ( IA) is one of the most common cerebrovascular diseases in our lves, characterized by high morbidity, high disability rate and high fatality rate. With the extensive application and improvement of imaging techniques, more and more unruptured intracranial aneurysms can be diagnosed and treated before rupture,which reduces the incidence of subarachnoid hemorrhage caused by its rupture. However, the optimal treatment for unruptured aneurysms remains controversial,and the risk of preventive intervention must be weighed against the unknown risk of individual aneurysm rupture. Therefore,it is necessary to predict the risk of rupture before treatment for unruptured aneurysms. In this paper, the high risk factors of IA rupture were discussed through literature research and a large number of clinical data analysis,which provided the basis for the treatment of intracranial aneurysms.
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Objective To detect the serum microRNA-148b-3p level in patients with diabetes mellitus and diabetic nephropathy,and to analyze its correlation with clinical and pathological indexes.Methods The research crowd was divided into three groups (1) diabetic nephropathy group:biopsy with diabetic nephropathy (n=25,14 males,11 females);(2) type 2 diabetes mellitus group:type 2 diabetes mellitus patients with normal urinary microalbumin/urinary creatinine value (n=10,4 males,6 females);(3) normal control group:healthy subjects (n=9,3 males and 6 females).Clinical indicators included gender,age,24-hour urine protein,systolic blood pressure (SBP),diastolic blood pressure (DBP),serum creatinine (Scr),urea (Urea),cystatin-C (Cys-C),blood albumin (ALB),urine microalbumin (UMA),triacylglycerol (TG),total cholesterol (TC),high-density lipoprotein cholesterol (HDL-C),low-density lipoprotein cholesterol (LDL-C),serum uric acid (UA),fasting blood glucose (FBG),glycated hemoglobin (HbA1c),urine microalbuminuria / urinary creatinine (UACR),and estimated glomerular filtration rate (eGFR) calculated by CKD-EPI formula.Real-time quantitative PCR was applied to verify the expression of microRNA-148b-3p in serum samples of the research crowds.The relationships between microRNA-148b-3p level and clinical features was also analyzed.Results The levels of serum microRNA-148b-3p in diabetic nephropathy group and in type 2 diabetes mellitus group were 1.82 times and 1.73 times of that in normal control group (P < 0.05,respectively).The level of serum microRNA-148b-3p was significantly correlated with HDL-C (r=-0.374,P=0.013),UMA (r=0.426,P=0.004),FBG (r=0.330,P=0.046) and TG (r=0.423,P=0.005).Multiple linear regression analysis showed that UMA level was independently associated with serum microRNA-148b-3p level (β=0.338,P=0.044).The area under the receiver operating characteristic curve (ROC) of serum microRNA-148b-3p in diagnosing type 2 diabetes mellitus and diabetic nephropathy was 0.835 and 0.665,respectively.Conclusions The level of serum microRNA-148b-3p of patients with type 2 diabetes mellitus or diabetic nephropathy significantly increases.The level of UMA is independently associated with serum microRNA-148b-3p level.Serum microRNA-148b-3p is expected to be a potential biomarker for the diagnosis of diabetic nephropathy.
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Objective The aim of this study was to evaluate the glioma using the variety of functional magnetic resonance imaging( fMRI) ,and to perform a more accurate preoperative diagnosis of gliomas. Methods Thirty - five patients with gliomas confirmed by pathology were examined by magnetic resonance imaging (MRI)and functional MRI. Rapid diffusion coefficient(D?),Slow diffusion coefficient(D),perfusion fraction ( f) and distribution diffusion coefficient ( DDC ) in the intravoxel incoherent motion diffusion weighted imaging (IVIM-DWI) were analyzed statistically. Results The mean values of D?,D,f and DDC in the IVIM se-quence of the patients with high-grade of gliomas were statistically significant when compared to the IVIM values of the contralateral normal brain tissues(P<0. 05). Conclusion A variety of magnetic resonance functional im-aging sequences are used to analyze gliomas,which can avoid tumor heterogeneity and improve the recognition a-bility and accuracy of magnetic resonance imaging in high grade gliomas.
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<p><b>OBJECTIVE</b>To identify mutation of GJB2 gene and provide genetic counseling for a family affected with keratitis-ichthyosis-deafness (KID) syndrome.</p><p><b>METHODS</b>Genomic DNA was extracted from peripheral blood samples with a standard phenol-chloroform method. PCR and Sanger sequencing were used to analyze potential mutation in the proband. Suspected mutation was verified with a PCR-high-resolution melting (PCR-HRM) method. T-clone sequencing was applied to determine the parental origin of the mutation.</p><p><b>RESULTS</b>A heterozygous mutation, c.148G>A (p.Asp50Asn), which is located in the exon 1 of the GJB2 gene, was found in the proband. The results was confirmed by HRM analysis. Cloning sequencing suggested that the mutation was derived from the father's germline.</p><p><b>CONCLUSION</b>The hot-spot mutation c.148G>A (p.Asp50Asn) in the GJB2 gene probably underlies the KID syndrome in this Chinese family. A PCR-HRM method has been established to rapidly detect common mutations associated with this disease.</p>
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Niño , Humanos , Masculino , Conexinas , Genética , Análisis Mutacional de ADN , Queratitis , Genética , Mutación , LinajeRESUMEN
Objective:To compare and study coronary artery lesions characteristics of patients with non -ST -seg‐ment elevation acute myocardial infarction (NSTEMI) .Methods :A total of 66 patients diagnosed as acute NSTEMI were enrolled as NSTEMI group ,meanwhile 74 patients with unstable angina pectoris (UAP) were regarded as UAP group and 76 patients with acute ST -segment elevation myocardial infarction (STEMI ) were regarded as STEMI group .All patients received coronary angiography (CAG) and optical coherence tomography (OCT) examination . Coronary artery lesions characteristics were compared among three groups .Results:Pairwise comparison showed , that occlusion lesion (33.3% ) and serious stenosis (70% ~94% ) lesion (34.8% ) in NSTEMI group were signifi‐cantly more than those of UAP group (14.9% ,8.1% ) respectively;the occlusion lesion and serious stenosis lesion of STEMI group were no significant difference compared with those of STEMI group , P>0.05 all;type C lesion 43.9% of NSTEMI group was significantly more than that of UAP group (27.0% ) and of STEMI group (31.6% ) respectively ( P 0.05). Conclusion :Serious stenosis lesion ,type C lesion and vulnerable plaque of NSTEMI group are significantly more than those of UAP group ;in NSTEMI group , type C lesion is significantly more than ,and occlusion lesion occlusion le‐sion significantly less than that of STEMI group .
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OBJECTIVE@#To explore the association of the dental decay of children with the contents of chemokine CCL28 and secretory immunoglobulin A (sIgA) in saliva.@*METHODS@#A total of 108 children in 2 kindergartens of Changsha, with age from 3 to 5 years old, were enrolled for this study. The saliva was collected from these children when they were in the examination of mouth. Th e children were divided into 3 groups: A non-caries group [dynamical mean-field theory (DMFT)=0], a low caries group (DMFT=1-4) and a high caries group (DMFT ≥ 5). Th e contents of CCL28 and sIgA were measured by ELISA.@*RESULTS@#The contents of CCL28 and sIgA in saliva were (121.22 ± 32.63) pg/mL and (16.49 ± 8.02) μg/mL, respectively. A positive linear correlation was found between the CCL28 content and sIgA content in saliva (r=0.734). Th e CCL28 and sIgA contents in saliva were positively correlated with the degree of dental caries in children (P<0.05).@*CONCLUSION@#The dental decay of children leads to the secretion of chemokine CCL28, which promotes the secretion of sIgA in saliva.
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Preescolar , Humanos , Quimiocinas CC , Caries Dental , Patología , Ensayo de Inmunoadsorción Enzimática , Inmunoglobulina A Secretora , Saliva , QuímicaRESUMEN
Objective To evaluate the advantage and clinical value of javanica oil emulsion injection combined with radiotherapy for esophageal carcinoma. Method Randomized controlled trials (RCTs) concerning javanica oil emulsion injection combined with radiotherapy for esophageal carcinoma were made on electronic databases of CBM, CNKI, Wangfang, VIP and PubMed from 1990 to February 28, 2015. Quality of the included RCTs was assessed by Jadad scoring , and Meta-analyses were performed by RevMan5.3 software. Results Seven RCTs involving 575 patients were included in Meta-analysis. All studies were in low quality. The results of Meta-analyses showed that Javanica oil emulsion injection combined with radiotherapy for esophageal carcinoma, compared with control groups, could increase the recent curative effect (P < 0.000 01) and improve the quality of live (P = 0.000 8), decrease the hematologic toxicities (P = 0.03) and the incidence rate of radioaction esophagitis (P = 0.02), but not enough evidence was found to prove that it can enhance survival rate (P = 0.25). Conclusions The results of Meta-analysis indicate that javanica oil emulsion injection may have therapeutic effects on the treatment of esophageal carcinoma. Yet the effects of javanica oil emulsion injection still need to be confirmed by large multi-center randomized controlled trials.