OBJECTIVE:To observe the effect of Xuezhikang on serum MCP-1 and endothelial function of brachial artery in patients with chronic heart failure but with normal cholesterol level. METHODS:Patients with chronic heart failure (NYHAⅡ-Ⅳ) were randomly allocated into two groups(n=24 each). Both groups received routine treatment in accordance with the guide of CHF treatment,additionally,the treatment group received Xuezhikang 0.6 g bid for 8 weeks. Serum levels of MCP-1 before and after treatment were measured by ELISA and endothelial function of brachial artery was detected by ultrasonography. RESULTS:In Xuezhikang-treated group compared with the control group,serum level of MCP-1 decreased significantly(P

Objective To learn the control status of iodine deficiency disorders in Baoji City of Shaanxi Province.Methods From 2009 to 2011,according to the National Iodized Salt Monitoring Program,the iodized salt was monitored,and thyroid was examined in 12 counties(areas) of Baoji City.According to rural and urban area stratification,60 children aged 8 to 10 were selected in each county(district),and their urine samples were collected for determination of iodine content.In 2011,per capita daily salt intake was surveyed by the three weighing method at children's home whose urine was collected.Chencang Area,Fufeng County and Taibai County,representatives of Baoji City different geomorphic features were selected for investigation of water iodine,and urinary iodine of pregnant and lactating women,and 15 people were selected in each county (district).Results From 2009-2011,in the 12 counties(areas) in Baoji City,the coverage rate of iodized salt was all 100.00％(3468/3468); the qualified rate of iodized salt and the consumption rate of qualified iodized salt were all ＞ 99.00％.Children's goiter rate was 3.41％(87/2548),3.06％(77/2520) and 3.33％(84/2520),and they were all less than that of the national standard (＜ 5％).Medians of urinary iodine of 8-10 years old children were 368.20,293.80 and 332.50 μg/L,respectively,and the ratios of urine iodine ≥300 μg/L were accounted for 66.42％ (797/1200),48.05％(692/1440) and 56.67％(816/1440),respectively.Median urinary iodine of pregnant women was 301.81 μg/L and lactating women was 329.79 μg/L.A total of 1116 households were investigated,the median of per capita daily salt intake was 8.9 g.Eighteen water samples were collected,range of water iodine value were 0.60-10.25 μg/L.Conclusions Iodine nutrition in general population of Baoji City is exceeded the optimum level,and the current iodized salt concentration has some down space,but fully consideration should be taken on iodine needs in different iodine deficiency areas and among different groups of people.

Objective To investigate the changes of serum troponin I (cTnI) in children with severe pneumonia in the early time and its significance in the diagnosis of myocardial damage.Method cTnI was measured by automatic chemo-immuno-analyzer in 47 patients with severe pneumonia during acute stage and 25 patients during recovery stage.Results The levels cTnI in blood of 33 patients with severe pneumonia during the acute stage were obviously higher,with the abnormal rate 70.2%.There was a remarkable difference compared with control group(P

HIV Infections ; immunology ; HIV-1 ; genetics ; immunology ; Humans ; Mutation ; T-Lymphocytes ; immunology

Crime scene investigation is one of the important aspects in a medico-legal proceeding. This article describes the principles of forensic investigation under different circumstances including indoor and outdoor as well as moving objects/environment.
Autopsy ; Cadaver ; Cause of Death ; Crime ; Environment ; Forensic Medicine/methods* ; Humans

Objective　To investigate the drug resistance of Enterobacter cloacae isolated from blood samples in 75 member units of the Bacterial Drug Resistance Monitoring Network in Hebei, 2016- 2021, so as to provide a basis for rational drug use in clinic. Methods　WHONET 5.6 software was used to retrospectively analyze drug susceptibility of Enterobacter cloacae isolated from 32 secondary hospitals and 43 tertiary hospitals. SPSS19.0 software was used for statistical analysis. Results After removing the duplicate strains, 1 225 strains of E. cloacae were isolated from blood samples of 75 hospitals during 6 years, including 157 strains from secondary hospitals and 1 068 strains from tertiary hospitals. In this study, the resistance of Enterobacter cloacae to 16 kinds of antibiotics was analyzed. The drug resistance rates to cefuroxime (52.4%-67.8%), piperacillin (27.4%-31.2%), ceftazidime (27.8%-35.5%), ceftriaxone (29.5%-45.0%), aztreonam (22.2%-32.3%), cotrimoxazole (21.6%-28.7%) were higher; the resistance rates to amikacin and tobramycin were lower than 15.0%. The resistance rates to imipenem and meropenem were 3.6%-12.3% and 5.1%-11.4%, respectively. The resistance rate to ciprofloxacin in tertiary hospitals was 22.4%, and the resistance rate to cotrimoxazole was 23.9%. Except for these two antimicrobials, the resistance rates to other antimicrobial drugs in tertiary hospitals were higher than that in secondary hospitals. A total of 121 carbapenem-resistant Enterobacter cloacae strains were detected in the past 6 years, with an increasing detection rate (χ2trend=6.305, P=0.012). Conclusions　Enterobacter cloacae has great differences in antimicrobial resistance to different antibiotics, and is sensitive to carbapenems. The drug resistance in tertiary hospitals is generally higher than that in secondary hospitals. Drug resistance monitoring and drug resistance mechanism research should be strengthened to better guide clinical drug use and curb the rise of drug resistance.

Objective To investigate the contribution of single nucleotide polymorphisms (SNP)variation in folate metabolism pathway genes and its interaction with environmental risk factors to the etiology of NTD. Methods In 275 families from central China, a total of 278 aborted fetal tissues or blood samples were collected from NTD individuals, 478 maternal and/or paternal blood samples were also obtained as controls. Folate supplementation, maternal diabetes mellitus and medication before pregnancy and during the first trimester of pregnancy were investigated. SNP analyses of all samples were performed by CEQ 8800. Case-parent control study and transmission/disequilibrium tests (TDT) were performed according to environmental cofactors stratification to evaluated 28 SNP in 12 folate pathway genes associated with human NTD. Results Only gene MTHFR rs1801133 was significantly associated with NTD, and synergistic effects of environmental risk factors (no folate supplementation and maternal diabetes) were shown on the occurrence of NTD. Linkage disequilibrium between BHMT rs3733890 and NTD existed in case of no folate supplementation,whereas the genotype alone did not contribute to the etiology of NTD. Other SNP were not significantly associated with NTD. Conclusions MTHFR rs1801133 is a risk factor of NTD, but BHMT rs3733890 is not an independent risk factor. Further investigations in folate and methionine cycle genes are requird in larger scale to enclose the interactions between gene and gene, or gene and environmental factors.

Objective To explore the effects of beta-amyloid precursor protein (APP17) peptide on the changes in the expressions of phosphoinositide 3-kinase(PI3K), protein kinase B(PKB) and phosphorylation of cAMP response element binding protein (p-CREB) in the neurons of hippocampal gyms in rats after cardiopulmonary resuscitation. Method Twenty-one Wistar rats were randomly divided into three groups, namely the sham-operated control group, the resuscitation group and resuscitation with APP17 peptide-treated group. The rat model of asphyxial cardiac arrest was made by clamping the endotracheal tube and the standard external cardiopulmonary resuscitation ( CPR) was performed until the restoration of spontaneous circulation ( ROSC) observed.ROSC was defined by the appearance of normal QRS waves of electrocardiogram and mean artery pressure ( MAP)≥60 mmHg for more than 10 minutes. Rats of resuscitation group and control group received intravenous 0.9%NaCl, and the rats of the APP17 peptide group were treated with APP17 peptide(10μg·300 g~(-1), i. v.) after ROSC. Rats were sacrificed by decapitation after reperfusion 2 hours and then the cerebral hippocampal gyrus was immediately separated to detect PI3K, PKB and p-CREB by immunohistochemistry ( IHC) and Western-blot analysis. Statistical comparisons were made by one-way analysis of variance (ANOVA) . Results IHC showed that there was no significant difference in PDK positive cells between resuscitation group and control group (2.75 ±1.80 vs. 2.53 ± 1.53, P > 0.05) . The PDK obviously more increased in the APP17 peptide group than in resuscitation group(5.85 ± 2.83 vs. 2.75 ± 1.80, P < 0.01) .The counts of PKB and p-CREB positive cells were obviously lower in resuscitation group than those in control group (2.45 ± 1.36 vs. 5.22 ± 2.50, P < 0.05);(2.41 ± 1.11 vs. 8.31 ±3.02, P < 0.01 ). The PKB and p-CREB positive cells were significantly higher in the APP17 peptide group than in resuscitation group (9.66±4.32 vs. 2.45 ±1.36, P < 0.01);(14.18 ± 3.96 vs.2.41 ± 1.11, P <0.01). The PKB and p-CREB protein levels in resuscitation group were lower than those in the control group. Conclusions The expressions of PKB and p-CREB in neurons of hippocampus gyrus 2 hours ROSC, and APP17 peptide could restorer the expression of PDK, PKB and p- CREB and thereby protect the neurons of hippocampus gyrus from the injury of CPR.

Objective To compare the perioperative outcomes and long-term therapeutic response of laparoscopic splenectomy versus open splenectomy for idiopathic thrombocytopenic purpura.Methods A retrospective analysis of 124 patients who under-went splenectomy(68 LS and 56 OS)for ITP between January 2011 and January 2015 was conducted.Results Patients undergoing LS were found to require a longer operative time(P <0.05 )but had reduced hospital stay,lower intra-operative blood loss(P <0.05),less postoperative pain,earlier drain removal,and decreased incidence of complications(P <0.05).Conversion to OS was re-quired in 4 patients for excessive loss of blood(5.8%).Deep venous thrombosis(DVT)was observed in 1 patients after OS.One pa-tient died from pneumonia after LS.Mean follow-up of (33±11.8)months was performed in LS group and of (32±12.9)months in OS group.50 patients(73.5%)in LS group and 43(76.7%)in OS group reached sustained complete haematological response(P >0.05).Kaplan-Meier analysis showed that there was no significant difference in the relapse-free survival rate between the groups (P =0.679).Conclusion Compared with open splenectomy,laparoscopic splenectomy for patients with ITP has similar long-term therapeutic response,but it has advantages of minimally invasiveness.

Objective To explore the diagnosis and TNM stage effect of serum CYFRA21-1,VEGF and PDGF in patients with non-small cell lung cancer.Methods The electrochemiluminescence immunoas- say was used to detect serum CYFRA21-1,and the sandwich enzyme-linked immunoabsorbentassay(ELISA) was used to detect serum VEGF and PDGF in patients with non-small cell lung cancer and 30 normal healthy controls.Results Compared with healthy control group,the level of serum CYFRA21-1,VEGF and PDGF in non-small cell lung cancer group were much higher(P0.05).The serum CYFRA21-1 level was positively correlated with VEGF and PDGF(P