COL4A5 genotypes and clinical characteristics of children with Alport syndrome / 中国当代儿科杂志

OBJECTIVES@#To investigate the genotypes of the pathogenic gene COL4A5 and the characteristics of clinical phenotypes in children with Alport syndrome (AS).@*METHODS@#A retrospective analysis was performed for the genetic testing results and clinical data of 19 AS children with COL4A5 gene mutations.@*RESULTS@#Among the 19 children with AS caused by COL4A5 gene mutations, 1 (5%) carried a new mutation of the COL4A5 gene, i.e., c.3372A>G(p.P1124=) and presented with AS coexisting with IgA vasculitis nephritis; 3 children (16%) had large fragment deletion of the COL4A5 gene, among whom 2 children (case 7 had a new mutation site of loss51-53) had gross hematuria and albuminuria at the onset, and 1 child (case 13 had a new mutation site of loss3-53) only had microscopic hematuria, while the other 15 children (79%) had common clinical phenotypes of AS, among whom 7 carried new mutations of the COL4A5 gene. Among all 19 children, 3 children (16%) who carried COL4A5 gene mutations also had COL4A4 gene mutations, and 1 child (5%) had COL4A3 gene mutations. Among these children with double gene mutations, 2 had gross hematuria and proteinuria at the onset.@*CONCLUSIONS@#This study expands the genotype and phenotype spectrums of the pathogenic gene COL4A5 for AS. Children with large fragment deletion of the COL4A5 gene or double gene mutations of COL4A5 with COL4A3 or COL4A4 tend to have more serious clinical manifestations.

Clinicopathological and therapeutic analysis of Castleman's disease in children / 中华儿科杂志

Objective: To investigate the clinical features, pathological phenotype, treatment and prognosis of Castleman's disease in children. Methods: Clinical data of 15 children diagnosed with Castleman's disease in Henan Provincial People's Hospital and the First Affiliated Hospital of Zhengzhou University from May 2010 to October 2019 were analyzed retrospectively. The clinical characteristics, laboratory examination and histopathological data were analyzed. Results: Among the 15 Castleman's disease patients, 12 were males and 3 females. The age of first visit was 12 (10, 15) years. The time from mass discovery to pathologic diagnosis was 9.0 (2.0, 13.0) months. The majority of patients were unicentric (13 cases), and the histopathological type was hyaline vascular (11 cases). Unicentric lesions were most common in the neck (11 cases), all 13 patients received complete surgical resection of the lesions, the follow-up time was 20.0 (13.5, 50.5) months, and the prognosis was good. Two cases were multicentric type, the pathological types were mixed variant, meeting the criteria of idiopathic Castleman's disease, the two children underwent partial surgical resection, one was treated with rituximab and prednisone and the other was treated with thalidomide and prednisone. The follow-up time was 32 months and 10 month, both of them had good prognosis. Conclusions: Most cases of Castleman's disease in children are diagnosed late, and the unicentric type is dominant. The most common pathological type is hyaline vascular, which is characterized by painless lymphadenopathy, while multicentric type has systemic symptoms and both of them have a good overall prognosis.

Cardiovascular disease risk in diabetes patients aged 40 years old and above in China / 中华心血管病杂志

Objective: To evaluate the incidence of cardiovascular disease (CVD), ischemic and hemorrhagic cardiovascular events among Chinese diabetic patients aged 40 years and above with different CVD risk levels. Methods: This study enrolled participants aged 40 years and above in 15 provinces from a prospective cohort study, the China-PAR project (Prediction for Atherosclerotic Cardiovascular Disease Risk in China). Participants were categorized into two groups according to the presence or absence of diabetes at baseline. Individuals were further classified into low (0-4.9%), moderate (5%-9.9%) and high risk groups (≥10%), based on predicted ten-year CVD risk using the China-PAR equations. Two followed-up surveys were conducted between 2007 and 2015 to identify CVD events, which were defined as nonfatal acute myocardial infarction, or death due to coronary heart disease, or stroke. Ischemic cardiovascular events included nonfatal acute myocardial infarction, or death due to coronary heart disease, or ischemic stroke. Hemorrhagic cardiovascular events included subarachnoid hemorrhage and intracerebral hemorrhage. The incidences of CVD, ischemic and hemorrhagic cardiovascular events were compared in diabetes and non-diabetes population with different CVD risk levels. Results: This study included 89 209 participants aged 40 years and above, the average follow-up period was 8.5 years. The age was (54.8±9.4) years, and 36 794 (41.2%) were men, and 5 730 (6.4%) were diabetic patients. In diabetes patients aged 40 years and above, 53.7% (3 075/5 730) were at high risk of CVD. Age-and sex-adjusted incidence of CVD, ischemic and hemorrhagic cardiovascular events (1 066.93/100 000 person-years, 824.23/100 000 person-years, and 211.56/100 000 person-years) were significantly lower in diabetes patients than those in non-diabetes population with high CVD risk (1 773.73/100 000 person-years, 1 228.18/100 000 person-years, and 446.49/100 000 person-years) (all P<0.001). Among high CVD risk populations, incidence of ischemic events was significantly higher in diabetic patients than in non-diabetes population (1 638.47/100 000 person-years vs. 1 228.18/100 000 person-years, P<0.001), but incidence of hemorrhagic events tended to be lower in diabetic patients than in non-diabetes population (415.70/100 000 person-years vs. 446.49/100 000 person-years, P=0.635). Incidence of ischemic and hemorrhagic events were similar between diabetes patients and non-diabetes population at low or moderate CVD risk groups (all P>0.05). Conclusions: More than half of diabetes patients aged 40 years and above in China have high CVD risk. The incidence of CVD, ischemic and hemorrhagic cardiovascular events are different in diabetic patients with different CVD risk levels.

Evaluation of red blood cell distribution width and platelet distribution width in combination with Glasgow Coma Score for the prognosis of patients with severe traumatic brain injury / 医学研究生学报

ObjectiveAt present, there are few studies on prognostic indicators for patients with severe traumatic brain injury (STBI). This paper aims to explore its significance by analyzing the demographic characteristics of patients with STBI, as well as parameters such as clinical laboratory test indicators.MethodsA retrospective analysis was performed on 139 STBI patients admitted to the Department of Emergency Medicine, General Hospital of Eastern Theater Command from January 2017 to December 2018. According to the 28-day death event, the participants were divided into the survival group (n=108) and the death group (n=31). Indicators such as Glasgow Coma Score (GCS), red blood cell distribution width (RDW), platelet distribution width (PDW) and clot-related indicators were collected. Univariate and multivariate logistic regression were used to analyze the risk factors related to death, and receiver operating characteristic (ROC) curve was adopted to determine their prognostic values.ResultsThere were significant differences in GCS, RDW and PDW between the two groups. RDW (OR=4.577, 95% CI: 1.704-12.291), PDW (OR=1.346, 95% CI: 1.093-1.657) and GCS (OR=0.469, 95% CI: 0.301-0.730) were risk factors for death of STBI patients. The area under the curve (AUC) of RDW, PDW and GCS scores were 0.735 (0.640-0.840), 0.675 (0.553-0.796) and 0.737 (0.638-0.837), respectively, and the AUC of the combination of the three was 0.840 (0.748-0.932), which was significantly better than that of single diagnosis.ConclusionRDW, PDW combined with GCS can effectively evaluate the prognosis of patients with STBI, which has important guiding value for clinicians′ diagnosis and treatment.

Integrative Analysis Confirmed the Association between Osteoprotegerin and Osteoporosis / 中国医学科学杂志(英文版)

Objective This study aimed to verify the association between osteoprotegerin gene () and its variants with osteoporosis (OP) by performing integrative analysis.Methods We used the KGG software to perform gene-based association analysis, which integrated all publicly available single-nucleotide polymorphism (SNP)-based values and obtained an overall value for the . The significant SNPs were screened for expression quantitative trait loci (eQTLs). Meta-analysis was used to combine the associations between the variants of and bone mineral density (BMD) reported in the literatures. Then we performed dual-luciferase reporter gene systems for the functional verification of the variants of .Results In the gene-based association analysis, the over all value of was 6.24×10 for BMD at femoral neck (FN) and 7.37×10 for BMD at lumbar spine (LS), indicating the importance of for OP. The publicly available eQTL database identified 5 eQTLs which exert cis-regulation effects on at FN and LS. Literature searching found that rs2073617 (known as T950C) was the hot spot SNP. There were 13 relevant studies on rs2073617 besides the GEFOS-2 study identified from the PubMed. Significant differences among TT, TC and CC genotypes at FN (= 0.047) and LS (= 0.025) were shown by meta-analysis, demonstrating the associations between T950C polymorphism and BMD. Luciferase gene expression was significantly higher at the presence of allele C than allele T in the 293T cells (=-9.47, <0.01). Conclusion The integrative analysis further confirmed the importance of in OP and the correlation of T950C polymorphism with BMD of OP. The strategy can be used as a reference for functional interpretation of other disease-related genes.

Ressarch Advances of Prevantive and Therapeatic Effect of Mesenchymal Stromal Cells on Graft-Versus-Host Disease--Review / 中国实验血液学杂志

Graft-versus-host disease (GVHD) is a frequently encountered serious complication after allogeneic hematopoietic stem cell transplantation (allo-HSCT), it limits the success and widespread use of allo-HSCT. Mesenchymal stem cells (MSCs) are selected as ideal prophylactic and treatment means for GVHD during allo-HSCT due to their unique immunomodulatory and regenerative properties. Herein, the recent research progress about the prevantive and therapeutic effects of MSCs on GVHD and several issues related with the applications of MSC, including whether MSCs increasing risk of primary disease relapse and infection, impact of several clinical parameters on the clinical response to MSCs, and the prevantive and therapeutic effect of MSC-derived extracellular vesicles on GVHD are systematically reviewed.

Study of Recellularized Human Acellular Arterial Matrix Repairs Porcine Biliary Segmental Defects

BACKGROUND: With the popularity of laparoscopic cholecystectomy, common bile duct injury has been reported more frequently. There is no perfect method for repairing porcine biliary segmental defects.METHODS: After the decellularization of human arterial blood vessels, the cells were cultured with GFP⁺ (carry green fluorescent protein) porcine bile duct epithelial cells. The growth and proliferation of porcine bile duct epithelial cells on the human acellular arterial matrix (HAAM) were observed by hematoxylin-eosin (HE) staining, electron microscopy, and immunofluorescence. Then, the recellularized human acellular arterial matrix (RHAAM) was used to repair biliary segmental defects in the pig. The feasibility of it was detected by magnetic resonance cholangiopancreatography, liver function and blood routine changes, HE staining, immunofluorescence, real-time quantitative PCR (RT-qPCR), and western blot.RESULTS: After 4 weeks (w) of co-culture of HAAM and GFP? porcine bile duct epithelial cells, GFP⁺ porcine bile duct epithelial cells grew stably, proliferated, and fused on HAAM. Bile was successfully drained into the duodenum without bile leakage or biliary obstruction. Immunofluorescence detection showed that GFP-positive bile duct cells could still be detected after GFP-containing bile duct cells were implanted into the acellular arterial matrix for 8 w. The implanted bile duct cells can successfully resist bile invasion and protect the acellular arterial matrix until the newborn bile duct is formed.CONCLUSION: The RHAAM can be used to repair biliary segmental defects in pigs, which provides a new idea for the clinical treatment of common bile duct injury.

Professionalism of clinicians at public hospitals in China / 中华医院管理杂志

Objective To investigate the present professionalism of clinicians at public hospitals in China and its relationship with practicing environment and hospital management system. Methods From April 2015 to March 2016, 659 clinicians of 11 public hospitals, from Guandong, Hubei and Guangxi provinces, were recruited into the study based on multi-stage sampling. The questionnaire included professional attitude(20 items)and professional behavior(10 items).Descriptive statistics and spearman rank correlation analysis were applied for analysis.Results For professional attitude, 15 items were agreed by over 80% of respondents.All the positive professional behaviours were agreed by over 80% of respondents and all the negative professional behaviours were denied by less than 30% of respondents. Professional attitude was positively correlated with professional behaviour(r=0.157, P<0.01), practicing environment (r= 0.269, P < 0.01 ) and management system ( r = 0.199, P < 0.01). Professional behaviour was uncorrelated with practicing environment or management system ( P >0.05 ). Conclusions Clinicians at public hospitals in China present positive professional attitude which is correlated with professional behaviour, but they are not in high accordance with each other. Clinicians have low satisfaction with the practicing environment and management system, which are important factors influencing professional attitude of clinicians.

Survival benefit of patients with early-stage ovarian carcinoma treated with paclitaxel chemotherapeutic regimens / 부인종양

OBJECTIVE: Adjuvant chemotherapy was introduced in patients with early-stage ovarian cancer (OC). The benefit of standard chemotherapeutic regimens including taxane has not been established. METHODS: Patients with early-stage OC from the National Health Insurance Research database of Taiwan who received platinum plus cyclophosphamide (CP) or platinum plus paclitaxel (PT) for 3–6 cycles were recruited, and the disease-free survival (DFS) and overall survival (OS) were determined. RESULTS: A total of 1,510 early-stage OC patients, including 841 who received CP regimen and 699 who received PT regimen, were included. The 2 groups had a similar estimated probability of 5-year DFS (PT vs. CP, 79.0% vs. 77.6%; p=0.410) and OS (84.6% vs. 84.3%; p=0.691). Patients >50 years of age who received the CP regimen had a lower 5-year DFS than the patients ≤50 years of age who received the CP (p50 years of age who received the CP regimen had a worse 5-year OS compared with the other 3 groups (p=0.019) (p=0.179 for patients >50 years of age in the PT group; p=0.002 for patients ≤50 years of age in the CP group; and p=0.061 for patients ≤50 years of age in the PT group). Patients with the CP or PT regimen for 3–5 cycles had a similar 5-year DFS and OS compared to 6 cycles (p>0.050). CONCLUSION: Chemotherapeutic regimens with taxane could be recommended for early-stage OC patients >50 years of age.

Study on mechanism and structure-activity relationship of hypolipidemic polysaccharides: a review / 中国中药杂志

Hypolipidemic polysaccharides have notable activity and safety with a range of diverse sources. In this paper, the classification of hypolipidemic polysaccharides was carried out into polysaccharide sulfate, glycosaminoglycan, homopolysaccharide and heteropolysaccharide. The hypolipidemic activity mechanism and structure-activity relationship hypothesis of those polysaccharides in recent years were briefly reviewed therefore to provide references for the study and product development of polysaccharides.

Effect of polyphenol from Cortex Mori on melanogenesis of B16 cells and its mechanism / 中国药理学通报

Aim To investigate the inhibitory effect of polyphenol from Cortex Mori( CMP) on melanogenesis in mouse melanoma B16 cells and its possible mecha- nism. Methods Melanoma B16 cells with high ex-pression melanin were induced by α-melanocyte-stimu-lating hormone ( α-MSH) to establish cell model. Cell viability was detected by MTT assay. The melanin syn-thesis and tyrosinase activity were measured by NaOH and L-Dopa assays, respectively. The tyrosinase (TYR), tyrosinase-related protein-1 (TRP-1), tyrosi-nase-related protein-2 ( TRP-2 ) and microphthalmia associated transcription factor ( MITF ) protein and mRNA levels were measured by Western blot and qRT-PCR, respectively. Results CMP could inhibit the melanin synthesis and tyrosinase activity in α-MSH stimulated B16 cells in a dose-dependent manner ( P<0.05) . The melanin content and tyrosinase activity significantly decreased by 52.95% , 32.85% at 20 mg ·L-1of CMP, respectively. Treatment of 100 mg· L-1of arbutin reduced the melanin content and tyrosi- nase activity by 17.29% , 16.75% , respectively. Based on the results of this study, CMP showed a stronger anti-melanogenesis activity than that of positive control arbutin. After treated by CMP, the protein and mRNA levels of TYR, TRP-1, TRP-2 and MITF were significantly inhibited compared to the α-MSH group ( P<0.05) . Conclusions CMP could suppress the melanogenesis in α-MSH stimulated B16 cells, and its mechanism may be related to its regulation of the pro-tein and mRNA expressions of TYR, TRP-1, TRP-2 and MITF, and the inhibition of tyrosinase activity.

Expression of SIRT1 protein in gastric cancer and its relationship with P-gp and Top-Ⅱ alpha / 中国现代普通外科进展

Objective:Explore the expression of SIRT1 protein in gastric cancer tissues and cells.Analyze the correlation of SIRT1 protein expression and multidrug resistance protein P-gp and Top-Ⅱ alpha.Methods:Immunohistochemical to detect SIRT1,P-gp and Top-Ⅱ alpha protein in 15 cases of gastric cancer tissue and 15 cases of normal gastric mucosa tissues.Western blot test the expression of SIRT1 protein in normal gastric mucosa epithelial cell line GES-1 and human gastric cancer cell line SGC7901,MKN45,MKN28,HGC27,AGS and MGC803.Western blot test the expression of SIRT1,P-gp and Top-Ⅱ alpha protein in normal gastric mucosa epithelial cell line GES-1 and human gastric cancer cell line SGC7901,MKN45.After siRNA-SIRT1/liposome transfection gastric cancer cells SGC7901,western blot test the changes of expression of SIRT1,P-gp and Top-Ⅱ alpha protein and MTT test the changes of SGC7901 cells proliferation in vitro and the sensitivity of chemotherapy drugs 5-Fu.Results:In 15 cases of gastric cancer tissue have the positive expression of 15 cases of SIRT1 protein,13 cases of P-gp protein and 3 cases of Top-Ⅱ alpha protein.In 15 cases of normal gastric mucosa tissues have the positive expression of 6 cases of SIRT1 protein,5 cases of P-gp protein and 0 cases of Top-Ⅱ alpha protein.The relative quantity of SIRT1 protein expression average were 0.385,0.827,0.009,0.232,0.275,0.159,0.275 in GES-1,SGC7901,MKN45,MKN28,HGC27,AGS and MGC803,respectively.The relative quantity of P-gp protein expression average were 0.339,0.526,1.03 in GES 1,SGC7901 and MKN45 and Top-Ⅱ alpha protein were 0.093,0.889,and 0.158,respectively,siRNA-SIRT1 transfected SGC7901 for 8 hours and after 72 hours to test the relative quantity of SIRT1 protein expression average were 0.965,0.937,0.958,0.567,0.253,0.083 in control,BC-V,negative,siRNA-1,2,3 SIRT1,P-gp were 1.893,1.905,1.932,0.465,0.006,0.465 and Top-Ⅱ alpha were 0.09,0.07,0.073,0.085,0.168,0.085.MTT results showed that after SIRT1 protein expression was inhibited the SGC7901 proliferation has no obvious change in vitro and cell sensitivity to the chemotherapy drugs 5-Fu was increased significantly.Conclusion:SIRT1 expression in gastric cancer tissues and the expression of SIRT1 in gastric cancer tissue and cell carcinoma factors role,SIRT1 protein overexpression can promote P-gp protein expression lower Top-Ⅱ alpha protein expression in gastric cancer cells to chemotherapy of multiple drug resistance increase.

Role of Intestinal Microbiota in Hematopoietic Stem Cell Transplantation - Review / 中国实验血液学杂志

Graft-versus-host disease (GVHD) and infection are the frequently encountered complications after hematopoietic stem cell transplantation (HSCT), which influence the outcome and limit the widespread application of HSCT. Intestinal microbiota plays an important role in maintaining intestinal immune balance. The diverse levels of intestinal microbiota associated with the incidences of GVHD, infection and the prognosis of HSCT, thus remodeling intestinal microbiota can alleviate GVHD and infection after HSCT. Herein, the recent research progress about the role and the involved mechanisms of intestinal microbiota in HSCT, and the novel manipulation strategies of intestinal microbiota are systematically reviewed.

The effects of cervical spinous process fracture with posterior ligamentous complex injury on stability of the goat cervical spine / 医用生物力学

Objective To investigate the effect of cervical spinous process fracture with posterior ligamentous complex (PLC) injury on biomechanical stability of the goat cervical spine specimen in vitro,and evaluate the role of posterior structure in maintaining the stability of cervical spine.Methods Twenty-four fresh goat cervical spine C3-6 specimens were randomly and evenly divided into 3 groups:control group (group A),simple cervical spinous process fracture group (group B) and cervical spinous process fracture with PLC injury group (group C).Under loading of 1.5 N · m torque,the range of motion (ROM) in each group was respectively measured under 6 working conditions:flexion,extension,lateral bending and axial rotation,and the ROM differences among 3 groups were compared by using one-way ANOVA analysis.Results Simple cervical spinous process fracture had little effect on the stability of cervical spine and there was no significant difference in ROM between group B and control group (P ＞ 0.05) under all working conditions.Compared with control group,the ROM in flexion,extension and axial rotation significantly increased in group C (P ＜ 0.05),and no significant ROM difference was found in lateral bending between control group and group C (P ＞ 0.05).Conclusions Simple cervical spinous process fracture does not affect the overall stability of cervical spine.Cervical spinous process fracture with PLC injury is more likely to cause cervical instability than simple cervical spinous process fracture,and surgical intervention is required in cervical spinous process fracture with PLC injury.

The effects of cervical spinous process fracture with posterior ligamentous complex injury on stability of the goat cervical spine / 医用生物力学

Objective To investigate the effect of cervical spinous process fracture with posterior ligamentous complex (PLC) injury on biomechanical stability of the goat cervical spine specimen in vitro, and evaluate the role of posterior structure in maintaining the stability of cervical spine. Methods Twenty-four fresh goat cervical spine C3-6 specimens were randomly and evenly divided into 3 groups: control group (group A), simple cervical spinous process fracture group (group B) and cervical spinous process fracture with PLC injury group (group C). Under loading of 1.5 N·m torque, the range of motion (ROM) in each group was respectively measured under 6 working conditions: flexion, extension, lateral bending and axial rotation, and the ROM differences among 3 groups were compared by using one-way ANOVA analysis. Results Simple cervical spinous process fracture had little effect on the stability of cervical spine and there was no significant difference in ROM between group B and control group (P>0.05) under all working conditions. Compared with control group, the ROM in flexion, extension and axial rotation significantly increased in group C (P0.05). Conclusions Simple cervical spinous process fracture does not affect the overall stability of cervical spine. Cervical spinous process fracture with PLC injury is more likely to cause cervical instability than simple cervical spinous process fracture, and surgical intervention is required in cervical spinous process fracture with PLC injury.

Cupping as Assistant Treatment in Intervening Non-alcoholic Fatty Liver Disease / 上海针灸杂志

Objective To observe the clinical efficacy of cupping in intervening non-alcoholic fatty liver disease (NAFLD), and further explore the possible mechanism. Method Fifty NAFLD patients were randomized into two groups: a treatment group (25 cases, intervened by cupping, Chinese medication, diet control and kinesiotherapy) and a control group (25 cases, intervened by Chinese medication, diet control and kinesiotherapy). They were observed for 6 months. Body weight, body mass index (BMI), abdomen circumference, hip circumference, arm circumference, thigh circumference, blood lipids [including total cholesterol (TC) and triglyceride (TG)], hepatic enzymes [including aspartate transaminase (AST) and alanine transaminase (ALT)], and B-scan ultrasound of liver were recorded before and after the treatment for statistical analysis. Result After 6-month treatment, the body weight, BMI, abdomen circumference, hip circumference, arm circumference, and thigh circumference were significantly improved in the two groups (P<0.05); some patients had their TC, TG, AST and ALT levels descended to the normal range and B-scan ultrasound of liver turned negative; the reduction of abdomen circumference in the treatment group was more significant than that in the control group (P<0.05). Conclusion Cupping plus Chinese medication, diet control and exercises can effectively improve clinical observation indexes of NAFLD, especially for those with central obesity.

Effects of interleukin-17 on human laryngeal carcinoma Hep-2 cells / 国际肿瘤学杂志

Objective To investigate the effects of interleukin-17 (IL-17) on the cell proliferation, apoptosis and migration of human laryngeal carcinoma Hep-2 cells.Methods IL-17 was transiently transfected into Hep-2 cells, and at the same time empty vector group (pEGFP-N1) and normal control group were set up.The efficiency of transfection was evaluated by fluorescence microscope, and the mRNA and protein expressions of IL-17 were detected by reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting.The proliferation of cells was detected by methyl thiazolyl tetrazolium (MTT) method, and the apoptosis was detected by flow cytometry.The migration ability was detected by wound-healing assay and Transwell assay.ResultsHep-2 cells transfected with empty vector pEGFP-N1 and IL-17 showed green fluorescence under the fluorescence microscope.Hep-2 cells expressed IL-17 at both mRNA and protein levels after transfection with IL-17.Compared with the normal control group, the proliferation of IL-17 transfected Hep-2 cells was significantly inhibited after 48 h transfection (0.34±0.03 vs.0.46±0.04, P=0.006).The apoptotic rate of IL-17 transfected cells was higher than that of normal control group (26.80%±0.80% vs.2.90%±0.31%, P=0.000).According to the wound-healing assay, compared with the normal control group, the scratch width of IL-17 transfected cells was significantly greater (1.59±0.01 vs.1.36±0.01, P=0.000).Transwell migration experiment showed that the migration of IL-17 transfected cells was significantly lower than that of the normal control group (26.33±2.08 vs.49.33±1.53, P=0.000).Conclusion IL-17 can inhibit the proliferation of human laryngeal carcinoma Hep-2 cells, reduce their migration ability and enhance their apoptosis ability.Therefore, IL-17 may inhibit the occurrence and development of laryngeal carcinoma through a variety of mechanisms.

Contralateral C7 Nerve Root Transfer for Function Recovery in Adults: A Meta-analysis / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Root avulsion to all 5 roots of the brachial plexus is a common presentation and keeps a major reconstructive challenge. The contralateral C7 (CC7) nerve transfer has been used in treating brachial plexus avulsion injury (BPAI) since 1986. However, the effectiveness of the procedure remains a subject of controversy. The aim of this meta-analysis was to study surgical outcomes regarding motor and sensory recovery after CC7 nerve transfer.</p><p><b>METHODS</b>Chinese or English (i.e., "contralateral c-7", "contralateral c7", "c7 nerve root", and "seventh cervical nerve root") keywords were used for a literature search for articles related to CC7 nerve transfer in several databases (i.e., PubMed, Cochrane, Embase, CNKI, CQVIP, and Wanfang Data). Clinical research articles were screened, and animal studies as well as duplicate publications were excluded. Muscle strength and sensory recovery were considered to be effective only when the scores on the United Kingdom Medical Research Council scale were equal to or higher than M3 and S3, respectively.</p><p><b>RESULTS</b>The overall ipsilateral recipient nerve recovery rates were as follows: the efficiency rate for muscle strength recovery after CC7 nerve transfer was 0.57 (95% confidence interval [CI]: 0.48-0.66) and for sensory recovery was 0.52 (95% CI: 0.46-0.58). When the recipient nerve was the median nerve, the efficiency rate for muscle strength recovery was 0.50 (95% CI: 0.39-0.61) and for sensory was 0.56 (95% CI: 0.50-0.63). When the recipient nerve was the musculocutaneous nerve and the radial nerve, the efficiency rate for muscle strength recovery was 0.74 (95% CI: 0.65-0.82) and 0.50 (95% CI: 0.31-0.70), respectively.</p><p><b>CONCLUSIONS</b>Transfer of CC7 nerves to musculocutaneous nerves leads to the best results. CC7 is a reliable donor nerve, which can be safely used for upper limb function reconstruction, especially for entirely BPAI. When modifying procedures, musculocutaneous nerves and median nerve can be combined as recipient nerves.</p>

Post-traumatic stress disorder after typhoon disaster and its correlation with platelet 5-HT concentrations

OBJECTIVE@#To investigate residents' psychological stress factors and research the correlation between post-traumatic stress disorder (PTSD) and platelet 5-HT concentrations so as to provide scientific bases for diagnosis and treatment of PTSD and psychological intervention for people in the disaster area.@*METHODS@#A questionnaire survey of 5500 residents who have accepted psychological help was conducted by the emphatic investigation method. While high performance liquid chromatography was used to detect the platelet serotonin concentration of 100 PTSD patients and 100 healthy people.@*RESULTS@#(1) Of the 5114 cases, 3167 (61.93%) showed positive results in screening for psychological stress symptoms, and 399 (7.8%) were tested having apparent PTSD symptoms. Male and female prevalence showed no significant difference (χ(2) = -0.380, P = 0.704). The differences of prevalence between different age groups were statistically significant (χ(2) = 381.89, P = 0.000). (2) The differences in the level of platelet 5-HT between PTSD patients and normal control group were statistically significant.@*CONCLUSIONS@#The typhoon of Hainan Province caused relatively large psychological problems to the disaster victims. Compared with normal control group, the platelet 5-HT levels of PTSD patients in the disaster areas are lower. It may be related to incidents exposure levels, cultural background, religious ideas, social concerns and psychological rescue of the residents who live in the disaster areas of Hainan.