Objective:To identify potential risk factors of suicide among schizophrenic inpatients,in order to provide basis of how to prevent suicide in psychiatric inpatients.Method:A retrospective analysis among inpatients with mental disorders in Guangzhou psychiatric hospital from 1956 to 2005,the first psychiatric hospital,in China.Using a case-control design,sixty four schizophrenic inpatients(suicide group) who committed suicide in psychiatric hospital and the same number of randomly selected control subjects(control group) who had no incident of suicide were selected and their psychiatric records were compared.Results:The rate of suicide was 133.1(95% CI 103.4-62.9) per 100 000 admissions.Sixty four cases(83.1%) were diagnosed as schizophrenia,fifty nine(76.6%) were hung by themselves,and fifty two(67.5%) happened in wards.The numbers of hospitalization and the suicide attempts before and duration of hospitalization were significantly higher in suicide group than that in control group(P=0.001,0.017,0.003),and guilty thoughts,depressive mood were significantly higher in suicide group than that in control group(P=0.006,0.004).Both suicidal ideation and suicide attempts one month before and during hospitalization were significantly higher in suicide group than that in control group(P

Objective To observe the effects of rosuvastatin on the homocysteine (Hcy)-induced expression of matrix metalloproteinase 2 (MMP 2) and cell migration in rat vascular smooth muscle cells (VSMCs), and to explore the possible mechanism of Hcy-induced atherosclerosis and the role of statins in reversing atherosclerosis. Methods In one cell culture plate, the cultured rat VSMCs were incubated with different concentrations of Hcy (0, 50, 100, 500, 1000 μmol/L and 5000 μmol/L) in vitro for 24 h, 48 h and 72 h. And in another cell culture plate, the different concentrations of rosuvastatin (10-9, 10-8, 10-7, 10-6, 10-5 mol/L and 0 mol/L) were added to the cultured rat VSMCs (while the concentration of Hcy was 1000 μmol/L). The MMP 2 expression and enzyme activity were determined by gelatin zymography and Western blotting. The effects of Hcy and rosuvastatin on cell migration and invasiveness of VSMCs were observed. Results Hcy (50-5000 μmol/L) increased the protein expression, and Hcy (50-1000 μmol/L) increased enzyme activity of MMP 2 significantly. But Hcy (5000 μmol/L) inhibited activity of MMP 2 (F=9.31, 6.44 and 5.97, all P＜0.05). Rosuvastatin (10-9-10-5 mol/L) inhibited Hcy-induced expression and enzyme activity increasing of MMP 2. The counts of cell migration of VSMCs were 18.32±2.17, 32.68±4.34, 44.75±4.08, 61.39±5.21, 79.74±5.54 and 90.78±5.83, while the concentration of Hcy was 0, 50, 100, 500, 1000 μmol/L and 5000 μmol/L respectively (F=5.31, P＜0.05). The counts of cell migration of VSMCs were 79.74±5.54, 62.53±6.41, 48.37±5.66, 31.41±4.79, 19.27±3.62 and 11.17±2.33, while the concentration of rosuvastatin was 10-9, 10-8, 10-7, 10-6 and 10-5 mol/L respectively (F=4.99, P＜0.05). Rosuvastatin could decrease the stimulation of Hcy-induced migration of VSMCs. Conclusions Hcy can influence the MMP 2 protein expression/activity in VSMCs, and rosuvastatin can inhibit augmentation of Hcy-induced MMP 2 expression/activity and migration of VSMCs. It may be one of the multiple-effects of rosuvastatin reducing atherosclerosis.

AIM: To study the possibility that yellow wine improves the pathological changes of atherosclerosis in vivo. METHODS: Six weeks old LDL receptor knockout mice (n=48) on a high-fat and L-methionine diet developed plasma hyperhomocysteinemia and atherosclerosis. The animals were randomly divided into yellow wine group, red wine group, ethanol group and control group (n=12 in each group) and were sacrificed after 14 weeks. The levels of plasma lipids and homocysteine in serum were examined. The morphological changes of aorta artery and the atherosclerosis of aorta sinus were observed under microscope. The expression and activation of matrix metalloproteinase-2 (MMP-2) were determined by the method of immunohistochemistry. RESULTS: No significant difference of plasma total cholesterol, triglyceride or high density lipoprotein cholesterol among groups was observed. Plasma homocysteine was significantly decreased in yellow wine group as compared to other three groups (P<0.01). Compared to ethanol and control groups, use of yellow wine and red wine significantly reduced the atherosclerosis lesion area (P<0.01). However, no significant discrepancy between the yellow wine group and red wine group was found. Compared to control group, the expression of MMP-2 in yellow wine group, red wine group and ethanol group decreased by 26.3%, 27.6% (P<0.01) and 5.7% (P>0.05), respectively. The activity of MMP-2 in yellow wine group, red wine group and ethanol group decreased by 31.7%, 32.5% (P<0.01) and 6.7% (P>0.05), respectively. CONCLUSION: Yellow wine and red wine inhibit the expression of MMP-2 and improve the pathologic changes of atherosclerosis, indicating that they have benefic effects on cardiovascular system.

BACKGROUND:At present, biological agent-involved immunologic induction therapy gradual y became a key component in immunosuppression therapy of kidney transplantation. It can effectively prevent acute rejection and avoid the appearance of complications. OBJECTIVE:To evaluate the effect of different biological agents on immune state and functional status of transplanted kidney in immunologic induction therapy. METHODS:Clinical data of 110 recipients with kidney transplantation were retrospectively analyzed. In accordance with the conditions of immunologic induction therapy, recipients in the monoclonal antibody group (n=35) received basiliximab. Recipients in the polyclonal antibody group (n=43) underwent rabbit anti-human antithymocyteglobulin. Recipients in the control group (n=32) did not receive immunologic induction therapy. Absolute value of lymphocytes and the number of CD4+T lymphocyte subsets in peripheral blood were comparatively analyzed among three groups at 1, 4 and 12 weeks after kidney transplantation. Functional status of the transplanted kidney and complications of infection were evaluated at 12 weeks after transplantation.RESULTS AND CONCLUSION:The incidence of acute rejection was lower in the monoclonal antibody group and polyclonal antibody group than in the control group (P<0.05). The incidence of infectious complications was higher in the polyclonal antibody group than in the monoclonal antibody group and control group (P<0.05). The absolute value of lymphocytes was lower in the monoclonal antibody group and polyclonal antibody group at 1, 4 and 12 weeks after transplantation than in the control group (P<0.05). The number of CD4+T lymphocyte subsets in peripheral blood was lower in the polyclonal antibody group than in the monoclonal antibody group and control group at 1, 4 and 12 weeks after transplantation (P<0.05). These results suggested that biological agents participate in immunologic induction therapy of kidney transplantation, can effectively suppress the functional status of activated T lymphocytes, and decrease the occurrence of early acute rejection of the transplanted kidney. However, the incidence of infectious complications was higher after the use of rabbit anti-human antithymocyteglobulin.

We investigated the distribution characteristics of Yersinia enterocolitica in Ningxia ,China .In accordance with the requirements of the National Yersinia enterocolitica Disease Monitoring Scheme ,Y .enterocolitica were isolated from differ‐ent kinds of specimens collected in Ningxia in 2008 to 2013 .Then they were serotyped and detected for virulence gene and ana‐lyzed the pulsed‐field gel electrophoresis (PFGE) in Chinese CDC .It was found that 173 strains were isolated from various types of 9 643 specimens ,and the detection rate was 1 .79% .There were statistical differences among detection rates in differ‐ent years and in different specimens (P<0 .01) .Pathogenic serotypes O∶3 and O∶9 carried ail gene and ystA gene were de‐tected from specimens of pigs and diarrhea patient .Non‐pathogenic serotypes O∶5 and O∶8 and non‐typeable strains didn't carry ail gene and ystA gene ,and also can't be detected from swine ,cattle ,sheep ,chickens and dogs .In conclusion ,Y .en‐terocolitica was widely distributed in Ningxia and pigs were the dominant animal host .In all pathogenic serotypes ,the highest proportion was O∶3 following by O∶9 .It was no time and regional difference in the distribution of that in Ningxia ,China .

OBJECTIVEAlpha-2 macroglobulin (alpha2M) is a proteinase inhibitor found in association with senile plaques in Alzheimer's disease (AD). Also alpha2M has been implicated in several pathophysiological processes in AD. In view of the recent contradictory reports on the relationship between AD and a common polymorphism I1000V in A2M gene, the present authors studied a relatively large sample, determined the genotype of the I1000V polymorphism in A2M gene in sporadic AD patients and age-matched controls with normal cognition, and examined the possible association of the polymorphism with AD.

METHODSGenotypes of A2M and apolipoprotein E (apoE) were detected by polymerase chain reaction combined with restriction fragment length polymorphism in 257 patients and 242 controls in Guangzhou, and 112 patients and 113 controls in Chengdu.

RESULTSThe 1000Val allele frequencies in the merged AD and control groups were 7.7% and 8.7%, respectively. The differences of allelic and genotypic frequencies between the patients and control subjects were not statistically significant, even after stratification by apoE epsilon4 status or by age-of-onset of the disease.

CONCLUSIONThe results of this study revealed no association between the I1000V polymorphism of A2M and Chinese sporadic AD in Guangzhou and Chengdu.

Aged ; Aged, 80 and over ; Alzheimer Disease ; ethnology ; genetics ; Apolipoproteins E ; genetics ; Asian Continental Ancestry Group ; genetics ; China ; Female ; Gene Frequency ; Genetic Predisposition to Disease ; Genotype ; Humans ; Male ; Middle Aged ; Polymerase Chain Reaction ; Polymorphism, Genetic ; genetics ; Polymorphism, Restriction Fragment Length ; alpha-Macroglobulins ; genetics

Objective Toevaluateefficacyandsafetyoftwodifferentbiologicalsinimmunologic inductiontherapyonrenaltransplantrecipients.Methods Clinicaldataof78renaltransplantrecipientswho received biological immunologic induction therapy in Department of Urology of the 452nd Hospital of Chinese People's Liberation Army from June 2008 to April 2013,were retrospectively analyzed. According to different biological immunologic induction therapy,the recipients were divided into two groups,monoclonal antibody group (group A,n=35,received treatment of basiliximab)and polyclonal antibody group [group B,n=43, received treatment of antithymocyte globulin (ATG)]. And the other recipients who didn't receive immunologic induction therapy in the hospital during the corresponding period were chosen as control group (group C,n=32). The survival rates of recipient and kidney in 3 groups at 12th weeks after transplantation were analyzed.The levels of serum creatinine (Scr)of recipients in 3 groups were monitored at 7,14,30,60 d after transplantation. The occurrence rates of complications including acute rejection,delayed graft function and infectionwerecomparedamong3groups.Results At12thweeksaftertransplantation,thesurvivalratesof recipient and kidney in 3 groups were 100% and 100% in group A,97.7% and 97.7% in group B,100%and 96.9% in group C. There was no significant difference among 3 groups (all in P>0.05 ). Compared with group C,the Scr levels in group A and B decreased significantly at 7,14 d after transplantation (all in P<0.05 ). Compared with group C,the incidence rates of acute rejection decreased in group A and B(all in P<0.05 ). There was no significant difference in the incidence rates of delayed graft function among 3 groups (all in P>0.05 ). The incidence rate of infection in group B was significantly higher than those in group A and C (allinP<0.05).Conclusions Immunologicinductiontherapyissafeandeffectiveintheapplicationon renal transplant recipients.