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

Background5-Nitro-2-(3-styrene-acrylic amine) benzoic acid ( NPPB),a chloride channel inhibitor,has a promoting effect on cell apoptosis in myocardial ischemia and reperfusion of domestic rabbit.The CIC chloride channel has been found in the ocular trabecular cells.However,the effect of NPPB on the shape and function of trabecular cells is unclear. Objective This study was performed to investigate the effect of NPPB on the proliferation,cell cycle progression and apoptosis of human trabecular meshwork cells.MethodsThe immortalized human trabcular cell strain was cultured,and logarithmic-phase cells were incubated in 96-well plates at a density of 1 ×106/ml.Different concentrations of NPPB (10,50,100 μ mol/L) were added to the medium,and the MTT assay was used to assess the growth and proliferation of the cells.Flow cytometry was used to evaluate the cell cycle.Then,100 mg/L 5-FU or 100 mg/L 5-FU + 100 μmol/L NPPB was used to induce cell apoptosis,which was assessed by Annexin V-PI.The membrane potential of mitochondria was examined using rhodamine 123 (△ψm).Results After 48 hours of treatment with NPPB,the abosorbency (A value) of the cells was gradually lowered with the increasing dose of NPPB,with significant differences among the 4 groups (F =7.230,P =0.006).Compared with the 10 μmol/L NPPB group,the A values were significantly declined in the 50 and 100 μmol/L NPPB groups (t =1.610,P =0.025 ;t =12.270,P =0.001 ).Forty-eight hours after exposure to NPPB,the percentage of cells in G0/G1 phase was increased and that in the S phase was decreased.The percentages of cells in different phases of cell cycle were significantly different in comparison with their control groups (without NPPB)( P＜0.05 ).Twenty-four and 48 hours after the treatment with 100 mg/L 5-FU,the apoptosis rates of the cells were raised in the 100 mg/L 5-FU group and 100 mg/L 5-FU + 100 μmol/L NPPB group compared to the without NPPB group (t24h =2.130,P =0.023;t48h =4.810,P=0.011 ) ;while that in the 100 mg/L 5-FU+100 μmol/L NPPB group was higher than the 100 mg/L 5-FU group ( t24 h =1.980,P =0.037 ; t48 h =1.290,P =0.028 ),and the mitochondrial membrane potential was lowered ( t24h =1.580,P =0.029 ; F48 h =6.200,P =0.015 ).Conclusions NPPB suppresses the proliferation of human trabecular cells and promotes the cells to enter S phase via the G1/S check point.In addition,ClC might be involved in an anti-apoptosis mechanism through the internal mitochondrial pathway.

· Application of capsular tension ring ( CTR ) in phacoemulsification has become a common method to increase the stability of the capsular bag. CTR can effectively reduce the posterior capsular opacification ( PCO) , prevent intraocular lens ( lOL ) decentration and tilt, not cause lOL degree deviation and aberration increase.ln this review, we summarized the development overview of CTR in phacoemulsification.

Objective To investigate the effect of fluctuant high blood glucose on the pathology profile and BCL-2,BAX expression in neurons of the hippocampus from diabetic rats.Methods The diabetic rat models were developed by injection with l% streptozotocin(STZ),followed by insulin administration.Regular insulin was used to set up fluctuant high glucose group model.After 12 experimental weeks,the expression of Fas protein in hippocampus was checked by immunohistochemistry,pathological changes and ultrastructure were observed by using light microscopy and electron microscopy in three groups.Results Compared with those in N group,the expression of BCL-2 in pyramidal cells of diabetic rat's hippocampus was lower,while that of BAX was higher(P

Purpose To observe white matter structure features of patients with early stage (Hoehn-Yahr 1-2 phase) Parkinson''s disease (PD) by using diffusion tensor imaging (DTI) based on the fiber bundle analysis tract-based spatial statistics (TBSS); and to explore the brain regions of PD patients in which DTI parameters are significantly correlated with unified Parkinson''s disease rating scale (UPDRS) score elevation. Materials and Methods DTI sequence was performed on 27 cases of PD and 30 cases of healthy volunteers. DTI parameters including fractional anisotropy (FA), mean diffusivity (MD), axial diffusivity (AD), and radial diffusivity (RD) were analyzed in all participants by using TBSS technique, and the parameters of two groups were compared. The correlation of clinical UPDRS score with FA value, MD and RD value in the PD group were analyzed.Results Compared with that in the control group, FA values of several brain regions in PD group decreased, while MD and RD value increased (P<0.05). AD showed no obvious change (P>0.05). UPDRS score of PD group was correlated with FA, MD and RD value (P=0.001). The brain regions that showed FA value decreased, MD and RD value increased included corpus callosum, left anterior limb of internal capsule, bilateral anterior radial crown, bilateral superior radial crown and left posterior thalamic radiation (P=0.001).Conclusion There is some changes in white matter structure of the patients with early stage Parkinson''s disease, which may due to demyelination or fiber integrity damaged.

Objective:To screen and characterize aptamers against BCR-ABL fusion protein.Methods:A 90bp single stranded DNA( ssDNA) random library was subjected to 13 rounds of selection against BCR-ABL fusion protein by systematic evolution of ligands by expotential enrichment ( SELEX ) method, the selected aptamers were cloned and sequenced.The primary sequences and structure of aptamers were analyzed by Clustal W and DNA Folding Sever and the percentage of the ssDNA pool bound to BCR-ABL core protein were determinated.Results: after 13 rounds selection, the percentage of ssDNA pool bound to BCR-ABL fusion protein increased from 0.3%to 47.1%,the results showed that affinities of the Aptamers were different,the second structure analysis revealed possible stem-loops for binding to BCR-ABL fusion protein,the affinity of aptamer A2 to BCR-ABL fusion protein was highest with Kd values as low as 72 nmol/L.Conclusion:Aptamers against BCR-ABL fusion protein has been identified by SELEX methods from a 90 bp single stranded DNA library.And provide certain reference for the clinical treatment of chronic myelogenous.

Adenocarcinoma, Clear Cell ; metabolism ; pathology ; surgery ; Adult ; Carcinoma ; metabolism ; pathology ; Carcinoma, Mucoepidermoid ; metabolism ; pathology ; Carcinoma, Renal Cell ; metabolism ; pathology ; secondary ; Diagnosis, Differential ; Humans ; Keratins ; metabolism ; Male ; Nasal Cavity ; Nose Neoplasms ; metabolism ; pathology ; surgery ; S100 Proteins ; metabolism

Adolescent ; Adult ; Alprostadil ; pharmacology ; Anticoagulants ; pharmacology ; Child ; Child, Preschool ; Dextrans ; pharmacology ; Female ; Fibrinolytic Agents ; pharmacology ; Hematopoietic Stem Cell Transplantation ; adverse effects ; Heparin ; pharmacology ; Hepatic Veno-Occlusive Disease ; etiology ; prevention & control ; therapy ; Humans ; Infant ; Male ; Middle Aged ; Platelet Aggregation Inhibitors ; pharmacology ; Treatment Outcome

15mm~2)of dural sac cross-sectional area to values smaller than 75 mm~2 was found during examination in axial loading,or if a suspected disc herniation,narrow lateral recess,narrow intervertebral foramen,or intraspinal synovial cyst changed to being obvious at the axial loading examination,they were regarded as additional information.Results After axial loading CT examination,AVI was found in 16 of 40 patients.A significant decrease of dural sac area was found in 13 patients.Intervertebral disc herniation was more severe in 7 patients,lateral recess or interverbral foramen narrowed in 4 patients,no intraspinal synovial cyst was found.After axial loading MRI examination,AVI was found in 19 of 60 patients.A significant decrease of dural sac area was found in 13 patients.Intervertebral disc herniation became severe in 10 patients,lateral recess or interverbral foramen narrowed in 8 patients,no intraspinal synovial cyst was found.AVI was found in 32 of 79(40.5%)patients with sciatica and 2 of 20(10.0%)patients with low back pain(?~2=7.45 P

Objective To study the correlations between DLN and clinical pathological factors and provide clinical data for assessing the operation scopes and prognostic evaluations aims at further clarify its clinical values.Methods The research aimed at the 69 cases who undertook first-time surgery and confirmed thyroid papillary carcinoma by intraoperative frozen pathology from 2013 to 2014 in Wannan Medical college affiliated Yijishan Hospital.The groups was divided by whether the DLN had been detected and metastasized.And we made chi-square test or t test by using SPSS 22.0 to analysis between the clinical and pathological factors.Results The groups was divided by whether DLN had been metastasized from the detected cases and the results shown that there was no relationship with gender,age,tumor size,Hashimoto's thyroiditis and the number of COLN (which not including DLN).For multifocal cases (21.05％ vs 57.14％,P =0.047);for vascular infiltration,the positive cases of (10.53％ vs 71.43％,P＜0.001);for the metastasized rate of COLN,the positive cases of (65.79％ vs 14.29％,P =0.011);for the metastasized number of COLN,[(0.84 ± 1.48) vs (3.86 ± 3.08),P ＜ 0.001].All the data above illustrated that the two groups are statistically correlative in mulifocality,vascular infiltration,the metastasized rate of COLN and for the metastasized number of COLN.17.39％ of PTC cases can be detected by CD34 and D2-40.According to the presence of vascular infiltration,it can be divided into two groups,We contrast analyzed of the number of TCLN (include DLN),metastasized number of TCLN and the metastasized rate of TCLN.The results shown that the number of TCLN had no statistical differences,but significant in metastasized number of TCLN [(0.74 ± 1.83) vs (4.50 ± 2.20),P ＜ 0.001) and the metastasized rate of TCLN (29.82％ vs 100.00％,P ＜ 0.01)].Conclusions The DLN positive patients are more likely to have distant lymph node metastasized.If DLN positive,total thyroidectomy and bilateral central compartment neck dissection (CCND) has been necessary.Lateral selective neck node dissection (LSND) can be underwent after evaluating carefully combining with the history and preoperative images.CD34 and D2-40 could be the detection indexes of vascular infiltration for PTC.For the cases with vascular infiltration,it has a higher proportion to have the metastasized number and metastasized rate of TCLN and higher possibility of distant metastasis.So we should expand the scope of operation moderately and strengthen postoperative follow-up according to the history and preoperative images so as to reduce postoperative recurrence,distant metastasis rate and improve the living quality of patients.