Under the background that the job division and complication of the laboratory instrument are highly improved, It puts forward the new demand for the use and maintenance of the laboratory instrument. Nowadays, for the lack of training, Many staff in medical laboratory can not correctly use and maintain the instrument in their rotation to various departments. The problems are solved by the following ways: making an appropriate staff rotation plan, ensuring all operations were carried out strictly according to the instrument guide book, establishing the holder appointment system and individual responsibility system, ensuring the reports were sent out by the new rotating personnel independently only after strict training and qualified examination. Through these methods, the accuracy of the equipment and the quality of testing have greatly increased.

Objective To understand the status quo of the body mass index (BMI) among rural left‐behind elderly people in Chongqing ,and to analyze the impact of diet on BM I value to provide the dietary suggestions for improving the nutrional status of rural left behind elderly people .Methods The self‐designed questionnaire was used to conduct the on-site investigation on the ru‐ral left‐behind elderly people .The SPSS19 .0 statistical software was used for analysis .Results The average BMI value of surveyed people was (22 .14 ± 3 .22)kg/m2 ,the BMI value had statistically significant difference between different genders (χ2 =8 .170 ,P=0 .043) ,the normal proportion of BMI values in males was higher than that in females ;the BMI value had statistical difference a‐mong different ages(χ2 =18 .568 ,P=0 .029) ,the proportion of malnutrition was increased with the age increase .In the eating be‐haviors ,the food flavor was negatively correlated with the BMI value ,the choice of cooking oil was positively correlated with the BMI value(P<0 .05);the consumption frequency of fruits ,beans and bean products ,fish and shrimp was negatively correlated with the BMI value ,the consumption frequency of livestock meat and eggs was positively correlated with the BMI value(P<0 .05) .Con‐clusion In order to promote the nutritional status and health condition of rural left‐behind elderly people ,the cognition of their own physical constitution should be enhanced ,and the rational dietary habit and food consumption habit should be cultivated .

Objective:To assess the metabolic side effects of the following atypical antipsychoties head-to-head:amisulpride,olanzapine,aripiprazole,quetiapine,risperidone,ziprasidone.Methods:We searched the MED-LINE,EMBASE,Cochrane Library,PubMed,CNKI,Web of science,Sinomed,WANGFANG DATA databases for randomized,blineded studies comparing the above mentioned atypical antipsychoties in the treatment of schizophre-nia or related disorders.At last three reviewers extracted the data independently.All the data would be analysed with meta ananlysis and the analysis software of the RevMan 5.1 provided by Cochrane network.Results:There were 49 studies in which 45 were written in English and 4 were written in Chinese included in the review.Olanzapine pro-duced statistically significantly more weight gain than all other second-generation antipsychotics.Risperidone pro- duced significantly more weight gain than amisulpride.Olanzapine produced statistically significantly more increase in glucose levels from baseline to endpoint than all other second-genetation antipsychotics.Risperidone produced statistically significantly more increase in glucose levels from baseline to endpoint than aripiprazole,quetiap-ine.Olanzapine produced statistically significantly more increase in cholesterol than aripiprazole,risperidone and zi-prasidone.Quetiapine produced significantly more increase in cholesterol than risperidone and ziprasi-done.Risperidone produced significantly more increase in cholesterol compared to aripiprazole and ziprasidone.Conclusion:Some atypical antipsychoties lead to substantially more metabolic side effects than other a-typical antipsychoties.When choosing an atypical antipsychotic agent for an individual patient these side effects with their potential cause of secondary diseases should be weighed against efficacy and characteristics of the individual patient.

Aim To explore the effect of miRNA-143 ( miR-1 4 3 ) on homocysteine ( Hcy ) induced-vascular smooth muscle cells ( VSMCs ) proliferation and the mechanism .Methods VSMCs were cultured and in-cubated with Hcy by using primary cultured method . Then, cells were treated with different concentrations of Hcy and folate .VSMCs proliferation was determined with MTT assay , miR-143 was measured by qRT-PCR, and methylation of miR-143 was determined with meth-ylated PCR.Results After cells were treated with dif-ferent concentrations of Hcy , the proliferation of VSMCs was significantly increased , mRNA expression of miR-143 was decreased and methylation of miR-143 was increased .The proliferation of VSMCs was signifi-cantly decreased when transfected VSMCs with miR-143 precursor , and cell proliferation was increased by using miR-143 inhibitor transfection .Conclusion Hy-pomethylation of miR-143 may inhibit VSMCs prolifera-tion.

Objective To explore the protective mechanism of HSP70 protein in traumatic brain injury (TBI)‐related acute gastric mucosal lesions in mice .Methods Forty adult male Balb/c mice were randomly divided into sham (A) ,TBI (B) ,TBI+ geranylgeranylacetone (GGA) (C) ,and TBI+saline (D) groups .TBI was induced via the Feeney impact model .GGA (800 mg/kg) was administered via oral tube beginning before the model was built in group C .The expressions of HSP70 protein in brain and gastric mucosa were determined by immunohistochemistry , and the apoptotic index was detected by TUNEL method .Results The injury area in mouse brain and gastric mucosa was greater in group B than in groups A and C (P<0 .05) .After model induction ,the content of HSP70 protein in group B was markedly higher in the brain and gastric mucosa ,which was notably higher than in group A (P<0 .05) .Obviously apoptotic cells were observed in groups B and D ,which were significantly higher than in groups A and C .GGA pretreatment enhanced the up‐regulated expression of HSP70 and decreased the apoptotic index distinctly ;HSP70 expression was higher in group C than in groups B and D ,but the apoptotic index was lower (P<0 .05) .Conclusion GGA can induce HSP70 protein expression in mouse brain and gastric mucosa .HSP70 is involved in the process of apoptosis inhibition .GGA can be used in the prevention and therapy of TBI‐related acute gastic mucosal lesions .

AIM:To study the role of prostaglandin F2?(PGF2?) in cardiac hypertrophy and its relation with calcineurin(CaN) signal transduction pathway in vitro.METHODS:The cultured neonatal rat cardiomyocyte was used to observe the hypertrophic effect of PGF2?,and the hypertrophic response was assayed by measuring the cell diameter,protein content and atrial natriuretic factor(ANF) mRNA expression.For mechanism studies,the intracellular free calcium concentration([Ca2+]i) in cultured cardiomyocytes was measured by using Fura-2/AM as a fluorescent indicator.ANF and CaN mRNA expressions,and the expressions of CaN and its downstream effectors,NFAT3 and GATA4 proteins were assayed by RT-PCR and Western blotting,respectively.RESULTS:In cultured cardiomyocytes,PGF2? induced profound hypertrophic morphology change and the significant increase in cell diameter,and protein content in a concentration-dependent manner compared with those in vehicle control(P

OBJECTIVE：To study th e improvement effect and mechanism of Dajianzhong decoction on irritable bowel syndrome（IBS）visceral pain model rats. METHODS ：Totally 48 male non-weaning rats were randomly divided into normal control group ，model group ，pinaverium bromide group （positive control ，45 mg/kg）and Dajianzhong decoction high-dose ， medium-dose and low-dose groups （2.16，1.08，0.54 g/kg，by crude drug ），with 8 rats in each group. Except for normal control group，IBS visceral pain model was established by mother and child separation ，acetic acid enema ，ovalbumin intraperitoneal Remote limb precondition - ing protects against ischemia induced neuronal death through ameliorating neuronal oxidative DNA damage injection in other groups for 57 d. On the 58th day ，the rats in administration groups were given the corresponding drugs intragastrically，and model group and normal control group were given constant volume of purified water ，once a day ，for consecutive 14 d. The general condition of rats was observed ；abdominal wall withdrawal reaction （AWR）was adopted to evaluate the visceral sensitivity of rats in each group under 20，40，60，and 80 mmHg （1 mmHg＝0.133 kPa）pressure；HE staining method was used to observe the colon pathological features of rats in each group. Western blotting assay was used to detect the protein expression of intestinal glial cells markers fibrillary acidic protein （GFAP），nerve growth factor （NGF）and its receptor TrkA in colon tissue. RESULTS ：The mucosal layer of colon tissue in rats of model group was discontinuous ，gland edema was observed and lymphocytes ，neutrophils and eosinophils were scattered in the lamina propria. In Dajianzhong decoction low-does group，the mucosal layer of colon tissue was incomplete ，some glands were slightly edematous ，and a few lymphocytes ， neutrophils in the lamina propria. The colonic mucosa epithelial structure was intact ，glands arranged regularly ，and no degenerative necrosis and inflammatory cells were observed in Dajianzhong decoction medium- and high-dose groups and pinaverium bromide group. Compared with normal control group ，AWR scores under 20，40，and 60 mmHg pressure ，relative protein expression of GFAR ，NGF and TrkA were all increased significantly in model group and Dajianzhong decoction low-does groups（P＜0.05 or P＜0.01）. Compared with model group ，AWR scores under 20，and 40 mmHg pressure in Dajianzhong decoction medium- and high-dose groups and pinaverium bromide group ，AWR scores under 60 mmHg pressure in Dajianzhong decoction high-dose group and pinaverium bromide group ，relative protein expression of GFAP ，NGF，TrkA in colon tissue in Dajianzhong decoction medium- and high-dose groups and pinaverium bromide group were all decreased significantly （P＜0.05 or P＜0.01）. CONCLUSIONS ：Dajianzhong decoction could improve the visceral pain of IBS model rats by inhibiting the activation of intestinal glial cells and reducing the expression of NGF and TrkA.

OBJECTIVETo evaluate the long-term clinical and radiographic outcomes of open and close treatment of condylar fractures of mandible in children.

METHODSA total of 78 cases (105 mandibular condylar fractures) were included in this study. All patients (younger than 12 years at the time of injury were followed up for at least 3 years. According to the classification of the condylar fractures, open or close treatment was chosen. Clinical outcomes were classified as favorable or unfavorable depending on the mouth opening, pattern of mouth opening, occlusion, facial symmetry. Condylar remodeling was defined as complete, moderate, or poor based on the radiographic findings. Depending on the classification, 14 sides of type I, 48 sides of type II and 43 sides of type III were included in this study.

RESULTSOpen treatment was chosen in 51 sides and close treatment was chosen in 54 sides. Most of the patients acquired satisfactory clinical outcomes. Better radiologic remodeling of the condylar process was found in the patients treated by open treatment.

CONCLUSIONSFavorable long-term clinical outcomes were obtained in both open and close treatment of mandibular condylar fractures. A better morphological remodeling of condylar process was found in patients with open treatment.

Child ; Dental Occlusion ; Follow-Up Studies ; Fracture Fixation, Internal ; Humans ; Mandible ; Mandibular Condyle ; Mandibular Fractures ; therapy ; Treatment Outcome

Objective To evaluate the cause of evaluated postage-specific antigen(PSA)in patients performed transrectal uhrasonography(TRUSG)guided prostate biopsy beeause of high PSA levels.Methods In a retrospective study 504 prostate biopsies performed between January 1998 and December 2001 were evaluated and the levels of serum PSA were determined in samples obtained immediately before sextant biopsy was performed.All patients underwent 6 or 13 cote primary prostate needle biopsies.Results 185 prostate cancer,109 NIH-Ⅳ prostatitis and 210 patients with benign prostate hyperplasia(BPH)were identified.The difference in free-PSA,total-PSA,f/t-PSA levels between prostate cancer,BPH and NIH-Ⅳ prostatitis was significant(P＜0.05).No significant difference was found in age,transrectal ultrasonography and digital rectal examination.In multivariate analysis,free-PSA,total-PSA,f/t-PSA was the significant predictors of histology in prostate cancer(P＜0.05).A significant correlation was found between the serum total and free PSA levels and the grade and stage of prostate cancer(P＜0.05).Preoperative variables predictors of histology in BPH were TPSA and FPSA(P＜0.05).In multivariate analysis,TPSA was the only significant predictors of histology in BPH(P＜0.01).The best cutoff value was constructed to differ pathology type in prostate diseases:tPSA≥4 ng/ml,fPSA≥0.85 ng/ml and f/t-PSA≤0.16(P＜0.05).Conclusions High serum PSA levels may correlate with asymptomatic inflammatory prostatitis,prostate cancer and BPH.The factors contributing to elevated serum PSA concentrations include cell proliferating,glandular epithelial disrupt.

Objective To discuss the relationship between asymptomatic prostatic inflammation (NIH category Ⅳ prostatitis)and serum prostate specific antigen. Methods In a retrospective study,245 prostate biopsies with benign pathological results from January 1998 to January 2000 were reviewed and the corresponding serum PSA before biopsy were analyzed.All patients were taken 6 or 13 cores prostate biopsy. Results One hundred and twenty-seven NIH-Ⅳ prostatitis and 118 patients with benign prostatic hyperplasia(BPH)were identified.The difference in free-PSA,totalPSA,f/t-PSA levels between BPH and NIH-Ⅳ prostatitis was significant(P＜0.05).In multivariate analysis,free-PSA,total-PSA,f/t-PSA was the significant predictors of histology in NIH-Ⅳ prostatitis(P＜0.05).The best prediction factors were constructed to predict pathology type in NIH-Ⅳ prostatitis:TPSA≥4 ng/ml,fPSA≥0.85 ng/ml and f/t-PSA≤0.16(P＜0.05). Conclusions Asymptomatic inflammation of the prostate was one of the confounding factors in patients with an elevated PSA.In the diagnosis of prostate diseases,it should be taken into account prostatitis might elevate the level of PSA.