Objective To investigate environmental risk factors associated with polycystic ovary syndrome(PCOS).Methods A retrospective study was carried out from Feb 2005 to Apr 2006.A total of 108 cases with PCOS and 108 patients without PCOS(control group)were interviewed using a designed questionnaire.Results Univariate analysis of environmental factors indicated that risk factors related to PCOS were:occupation,education,disposable plastic cup for drinking,cooking oil fume and indoor decoration,all of which were significantly related to PCOS(P

Objective To analyze the skeletal structure features of temporomandibular joint (TMJ) by using cone beam computed tomography (CBCT) in patients with sleep bruxism. Methods CBCT scanning was performed in the intercuspal position in 30 patients with sleep bruxism (sleep bruxism group) and 30 health adults (normal group). The reconstruction of TMJ images were analysed by Invivo5 software. Measurements of horizontal section include antero-posterior diameter, medial-lateral diameter and axial angel. Measurements of sagittal section include acetabulum depth, aricular eminence inclination, anterior space, superior space and posterior space. Measurements of coronal section include force angle. Results There were no significant differences in both sides of TMJ between sleep bruxism group and normal group(P>0.05). Compared with control group, there were significant differences in antero-posterior diameter, medial-lateral diameter, acetabulum depth, anterior space and force angle in sleep bruxism group (P<0.05). There were decreased antero posterior diameter, me?dial-lateral diameter and increased acetabulum depth, anterior space and force angle in sleep bruxism group than those of control group. Conclusion The bilateral bone stuctures of TMJ are basically symmetry in patients with sleep bruxism. There is no significant change in condylar position in acetabulum , but there is a trend of absorbtion of anterior space and de?crease of condyle in patients with sleep bruxism.

Objective To determine the clinical value of comcombined detection of serum FT 3 ,FT4 ,TSH ,TRAb ,TPOAb on outcome of women who have hyperthyroidism during pregnancy .Methods 100 patients with hyperthyroidism during pregnancy and 102 healthy pregnant women was selected in this research .Results The difference between the disease group and control group was statistically significant(P<0 .05) .Conclusion The combined detection of serum FT3 ,FT4 ,TSH ,TRAb ,TPOAb may have special impact on outcome of pregnant women .

Objective By virtual screening in MDL,to search for a novel γ-secretase inhibitor.Methods A series of compounds were designed,synthesized,and evaluated based on pharmacophore model of γ-secretase inhibitors by virtual screening in MDL.Results The drug-likeness analytic data synthesized indicated that target compounds had drug-likeness.Each svnthesized compound was checked by IR spectroscopy,~1H and ~(13)C-NMR spectroscopy.Conclusion The designed compounds had better activity by model prediction.And the optimal compound showed a significant estimated activity value of 0.025 nmol/L and can be used as a lead for further drug development.

Objective To explore the operative cooperation of the intra-extra cranial bypass operation of the intracranial giant aneurysms. Methods A retrospective analysis of 7 patients who had intracranial giant aneurysm and received the intra-extra cranial bypass operation from October 2014 to June 2016. All preoperative and intraoperative nursing points of operative cooperation were analyzed. Results The post-operative digital subtraction angiographies of 7 patients without any perioperative nursing complications showed enough flow in the bypass arteries. Conclusions Operative multi-incision managing, positive temperature intervening, special instruments using and thrombosis preventing play very important roles in the nursing points of the successful operative cooperation.

Objective To study the optimized process for effective components in Danggui-Buxue pill by orthogona design,and provide the basis for the establishment of quality standard.Methods Ferulie acid and ligustilide were used as examining index,the extraction time,solvent volume and extraction times were used as factors.L9(34) orthogonal test table was used to determine the optimum extraction process.HPLC method was used to establish methodology for ferulie acid and ligustilide.Results According to the result of orthogonal design,comprehensive consider determining the extraction efficiency of ferulic acid and ligustilide the optimal extraction technology as follows:1.0 g Danggui-Buxue pill was extracted by 30 ml of methanol for 60 min,extraction times for 2 times.Conclusions This method is simple with high efficiency.Its HPLC method has high precision and good reproducibility,which can be used for analysis Danggui-Buxue pill.

Objective To explore the influence of electrical stimulation on prefrontal cortical neurons and synaptic ultramicrostructure of hypoxic-ischemic brain damage(HIBD)in neonatal rats.Methods The sixty 7-day-old newborn healthy SD rats were randomly divided into hypoxic-ischemic group(model group),electrical stimulation(intervention)group and sham operation group(control group),which 20 for each group.The models of perinatal HIBD rats were prepared by ligation of left common carotid artery with a temporary systemic hypoxia for 2 hours.Intervention group was subject to electric stimulation for 30 minutes,once everyday after surgery.Control group and model group were not subject to electric stimulation but caught to fix in corresponding period.Fastigial nucleus electric stimulations were performed for 3 d,14 d and 21 d.Five rats were killed in each group after the application of electron microscope to observe the brain cortex neurons and synaptic ultrastructure changes.Results In model group,the neuronal shrinkage,the amount of organelles dacrease,ob-vious edema of cytoplasm,obvious swellen mitochondria,and synapse quantity decrease,synaptic space fusion,obvious synaptic vesicle were observed.Intervention group different times,mitochondria hydrops gradually alleviated,synaptic space gradually cleared,synaptic vesicle increased,pathological changes obviously lessened compared to model group at the same time,and there was no apparent abnormality compared with control group on the 21st d.Conclusion Electric stimulation can promote the ultramicrostructures recovery of HIBD rats.

Objective To investigate the effects of electrical stimulation on vascular endothelial growth factor(VEGF) and its receptor expressions of neonatal rat brain with hypoxic-ischemic brain damage(HIBD).Methods Seventy-five 7-day-old newborn health SD rats were randomly divided into sham operation group(control group,n=25),hypoxia-ischemia group(model group,n=25) and the electrical sti-mulation group(intervention group,n=25).To bulid HIBD animal model of neonatal rats,the left common carotid artery was ligated and nitrogen-oxygen gas mixture was inhaled 2 hours.Fastigial nucleus stimulation was given 12 hours after the operation in intervention group,30 min?time-1,1 time?d-1,the time length was 1 d,3 d,7 d,14 d or 21 d,respectively.There was no electrical stimulation in model group and control group.The rats in these groups were captured at the corresponding time.Five rats in each group were killed at the corresponding pe-riods after electrical stimulation,the expression of VEGF and its receptor fam-like tyrosine kinase receptor(flt-1 / VEGFR1),fetal liver kinase receptor(flk-1/KDR/VEGFR2) in hippocampus were observed by immunohistochemistry.SPSS 15.0 software was used to analyze the data.Results The expression of VEGF,VEGFR1,VEGFR2 at every time point in electrical stimulation group were higher significantly than those in model group and control group(Pa0.05).Conclusion Electrical stimulation can promote the expression of VEGF and its receptors VEGFR1,VEGFR2.

To explore the necessity of teaching of elective course:Flow Cytometry and its application to clinical medicine in medical students,sixty nine medical students including sevenyear program undergraduate,master and Ph.D candidates were surveyed with a community questionnaire. More than 95% students thought it was very necessary to set up the course because they knew little about the course and it would be very helpful in their future clinical and research work.

Objective To investigate the effectiveness of endoscopy and enteral nutrition (EN) in the treatment of acute biliary pancreatitis (ABP) in elderly patients and its impact on prognosis.Methods Eighty-four elderly patients with ABP were randomly divided into two groups,including 42 cases of combination treatment group,42 cases of routine treatment group.The routine treatment group was managed with normal comprehensive treatment,and in combination treatment group,patients were treated with additional endoscopic retrograde cholangiopancreatography (ERCP),endoscopic sphincterotomy (EST) and endoscopic naso-biliary (ENBD) drainage and EN.The clinical symptoms,serum inflammatory cytokines,complications and prognosis were compared.Results The CRP,TNF-α,IL-2,and serum amylase,glucose,AST after treatment were significantly lowered than those before treatment (P ＜ 0.05).In addition,the levels of CRP,TNF-α,IL-2,and serum amylase,glucose,AST,ALB in combination treatment group were significantly lower than those in routine treatment group (P ＜ 0.05).The time to abdominal pain cessation,time to fever cessation,hospital stay in combination treatment group were (4.6± 1.3),(3.7± 1.3),(13.5± 2.7) d,which were significantly lower than those in routine treatment group [(6.1 ± 1.3),(5.5 ± 2.1),(18.1 ± 3.8) d,P ＜ 0.05].The APACHE Ⅱ score of combination group after treatment was (7.l ± 1.8) point,which was significantly lower than that in routine treatment group [(9.2 ± 2.6) point,t =3.41,P ＜ 0.05)].The incidence rates of ARF,ARDS,peri-pancreatic infection and abdominal hemorrhage,in combination group were 7.1％,4.8％,4.8％,4.8％,respectively,which were significantly lower than those in routine treatment group (23.8％,19.1％,21.4 ％,19.1％,P＜0.05).The mortality in combiration group was 4.8％,which was lower than 16.7％ in routine treatment group with no statistical significant.Conclusions It is a safe and effective to treat elderly ABP patients with endoscopy combined with EN,which can significantly reduce complications and mortality.