Objective To investigate the effects of pioglitazone on serum adipocytokines (leptin, resistin and adiponectin) in polycystic ovary syndrome (PCOS) patients with insulin resistance (IR). Methods Thirty-five PCOS patients with IR were treated with pioglitazone 15mg/d for 12 weeks. The results of ovulation induction were observed. The changes of fasting plasma glucose (FPG), fasting serum insulin (FINS), serum levels of leptin, resistin and adiponectin, follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone (T), and blood fat were examined at the baseline and after the therapy by enzyme-linked immunosorbentassay (ELISA) and radioimmunoassay (RIA). Results After 12 weeks' treatment, menstruation and rate of ovulation per cycle were improved in 35 (88.5%) PCOS patients with IR. Waist/hip ratio and F-G score were significantly decreased (P<0.05), and BMI declined with no significant difference (P>0.05). The levels of LH, T, FINS, HOMA-IR, total cholesterol, triglyceride and low density lipoprotein-cholesterol were significantly decreased (P<0.01, P<0.05) after treatment; high density lipoprotein-cholesterol level was significantly increased (P<0.01) after treatment. However, there were no significant differences in FSH and FPG (P>0.05). The levels of serum leptin and resistin were decrease than before (P<0.05), and the level of serum adiponectin was increased (P<0.05). Conclusion Pioglitazone can effectively improve clinical syndromes, insulin sensitivity, glucose and lipid metabolism of PCOS patients with IR. Adipocytokines (leptin, adiponectin and resistin) as regulators of insulin metabolism are involved in the pathogenesis of insulin resistance in PCOS. Pioglitazone treatment can decrease plasma glucose level and improve insulin sensitivity at least partly through improving the profiles of adipocytokines.

Objective To investigate the effects of pioglitazone on serum leptin and adiponectin in polycystic ovary syndrome (PCOS) patients with insulin resistance (IR). Methods Thirty-five PCOS patients with IR were treated with pioglitazone 15mg/d for 12 weeks. The results of ovulation induction were observed. The changes of fasting plasma glucose (FPG), fasting serum insulin (FINS), serum levels of leptin, adiponectin, follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone (T) and blood fat were examined at the baseline and after the therapy by enzyme-linked immunosorbent assay (ELISA) and radioimmunoassay (RIA). Results After the treatment, the rate of ovulation per cycle was improved in 31 (88.5%) out of the 35 patients. After treatment, the level of serum leptin was decreased (P<0.05) while the level of serum adiponectin was increased (P<0.05). After 12 weeks'treatment, waist-to-hip ratio and F-G score were significantly decreased (P<0.05), BMI declined but without significant difference (P>0.05). The levels of LH, T, FINS, Homa-IR, total cholesterol, triglyceride and low density lipoprotein-cholesterol were significantly decreased (P<0.01, P<0.05), whereas the level of high density lipoprotein-cholesterol was significantly increased (P<0.01). No significant difference was seen in FSH and FPG following treatment (P>0.05). Conclusion Pioglitazone treatment can effectively improve PCOS with IR patients'clinical syndromes, insulin sensitivity, glucose and lipid metabolism at least partly through improving the profiles of leptin and adiponectin.

Objective: Simulating the photon transport process, recording the distribution of the dose which is caused by various of interactions and secondary particles, summarizing and analyzing the weightiness of each contribution. Methods: The PENELOPE package provides the basic Monte Carlo(MC) code which simulates the processes of photon and electron transport Considering the concerned physical problems, the author modifies the PENELOPE program to simulate the track of photon transport process, meanwhile records the contribution of dose which is provided by various of interactions and secondary particles in this article. Results: Firstly, in the same condition, recording the distribution from 4 source different energies(30 keV, 40keV, 50 keV, 60 keV), the distribution of the central axis total dose and the distributions which are caused by secondary Soft collision and secondary hard inelastic collision, and the distribution of the central axis dose provided by secondary particles. Secondly, in the same condition, recording the distribution of the central axis dose caused by secondary Compton scattering and secondary Photonelectric scattering. Conclusion: In different source of energy, the distribution of the central axis dose proffered by secondary soft collision play a major role; the contribution of secondary Photonelectric scattering decreased with the ascent of energy; the contribution from the first generation secondary particles is stronger than others.

A PAGE IEF immunoassay was established to detect the ORM, Pi, AHSG and GC phenotypes slmultaneously in human bloodstains. The cumulative discriminating power and probability of paternity exclusion were 0. 9878 and 0. 6648 respectively. Human sera diluted 100 times and bloodstains kept at room temperature for 4 weeks could be typed for these four blood groups correctly. The phenotypes of ORM, AHSG and GC could be determined correctly in bloodstains kept at room temperature within 24 weeks. This provides a good approach for individual identification of human bloodstains.

Objective To study the causes of conversions to open surgery during laparoscopic cholecystectomy (LC). Methods The study was based on a retrospective review of 156 cases of conversions to laparotomy out of 12672 cases of LC from December 1991 to October 2001 in this hospital. Results Ninety-two (58.97%) cases of conversions were due to complicated clinical condition and preoperative misdiagnosis, 47 (30.13%) cases of conversions due to technological complications, and 17 (10 90%) cases underwent delayed laparotomy. The total conversion rate was 1.23% and the rate of bile duct injuries was 0.2% (26/12672). Conclusions Inadequate preparation, deficiency of experience, complicated clinical situation, and anatomical variation of bile ducts are the leading causes to conversions.

Objective To examine the expression and clinical significance of E26 transformation specific-1 in premature rupture of fetal membranes. Methods Fetal membranes from 75 women in the following categories were analyzed for Ets-1 expression: preterm and term premature rupture of fetal membranes; 70 women (control group) with term cesarean sections and without complications. Ets-1 protein was localized with the use of immunohistochemical S-P method. Results Ets-1 protein was expressed in both the nucleus and cytoplasm of trophoblast of human fetal membranes, with more obvious expression in the nucleus. Ets-1 protein's expression was up-regulated in the trophoblast of fetal membranes with premature rupture, which differed significantly from the control group (P<0.05). Ets-1 protein's expression was up-regulated in the trophoblast of fetal membranes with preterm premature rupture, which did not differ significantly from the control group (P>0.05). Conclusion Ets-1 is expressed in human fetal membranes and its expression is up-regulated with premature rupture of fetal membranes, suggesting a role for Ets-1 in extracellular matrix remodeling of the membranes. This study provides an evidence to predict premature rupture of fetal membrances.

Objective To discuss clinical effects of combined use of duodenoscopy and laparoscopy in the treatment of acute billiary pancreatitis (ABP), and to establish a systematic protocol of minimally invasive treatment for ABP. Methods According to the patients’ biliary tract conditions, severity of disease and treatment methods, a total of 696 patients with ABP were given laparoscopic cholecystectomy (LC) alone, or endoscopic retrograde cholangiopancreatography (ERCP) and LC, or ERCP and laparoscopic common bile duct exploration (LCBDE), or ERCP and endoscopic sphincterotomy (EST), or individualized treatment for severe acute pancreatitis (SAP). Clinical effects were observed. Results Among the 696 patients, 330 patients (47.4%) received EST and biliary stones were successfully removed under endoscope in 267 patients (38.4%). ERCP, LC and LCBDE were conducted in 411 (59.1%), 513 (73.7%) and 85 (12.2%) patients, respectively, and successfully accomplished in 409 (99.5%), 511 (99.6%) and 82 (96.5%) patients, respectively. Out of 36 patients with SAP, 34 patients survived (94.4%). The total cure rate was 99.7% (694/696). Conclusions Combined use of duodenoscopy and laparoscopy is significantly effective for acute billiary pancreatitis and benefits the improvement and standardization of the protocol of minimally invasive treatment for acute billiary pancreatitis.

Objective To observe the effects of pioglitazone on secretion of E2 and expressions of P450 aromatase (P450arom), insulin-receptor substrate-1 (IRS-1), and insulin-receptor substrate-2 (IRS-2) mRNA in polycystic ovary syndrome (PCOS) ovarian granulosa cells.Methods In this study, granulosa cells that were fertilization-embryo transferred from 27 PCOS patients were primary cultured in vitro with different concentrations of pioglitazone (0, 10, 102, 103 and 104nmol/L) (Group A), different concentrations of pioglitazone+FSH (50ng/L, Group B) and different concentrations of pioglitazone+insulin-like growth factor I (IGF-I, 50ng/L, Group C).Estradiol concentrations in the culture supernatant were detected by radioimmunoassay;P450arom, IRS-1 and IRS-2 mRNA expressions on granulosa cells were detected by Real-time PCR.Results The levels of E2 secreted by granulosa cells and the expression of P450arom mRNA on granulosa cells of PCOS for 48 hours were different among Groups A, B and C (P<0.05).With increase in pioglitazone concentration, the level of E2 and the expression of P450arom mRNA declined, some of which correlated negatively with the concentration of pioglitazone.Among these groups, the level of E2 secretion and the expression of P450arom mRNA were higher in Group C than in Group B (P<0.01) and Group A (P<0.01) at the same concentration of pioglitazone.The level of E2 secretion and the expression of P450arom mRNA were higher in Group B than in Group A (P<0.05) at the same concentration of pioglitazone.The expressions of IRS-1 and IRS-2 mRNA on granulosa cells of PCOS under pioglitazone stimulation for 48 hour were different among the groups of different pioglitazone concentrations (P<0.05).With increase inpioglitazone concentration, the expression of IRS-1 mRNA on granulosa cells of PCOS was decreased, but the expression of IRS-2 mRNA on granulosa cells of PCOS was increased.Conclusion Pioglitazone may decrease estrogen production by inhibiting p450 aromatase and adjusting the expressions of IRS-1 and IRS-2 on granulosa cells of PCOS to play a role in ovulation induction and ameliorate insulin resistance in ovary of PCOS.Pioglitazone can inhibit IGF-I and FSH in inducing E2 secretion by ovarian granulosa cells.

This paper reports the detection of G2m(n)factors in human sera using theenzyme-linked immunosorbent inhibition test with monoclonal antibodies agai-nst G2m(n)factor(SH-21).The gene freguency of G2m(n)factor among 517unrelated individuals of ban population in Chengeu area was 0.5493 and itsvariance was 0.0004.

?-1 acid glycoprotein, also named orosomucoid (ORM), is one kind of serum protein with genetic polymorPhism. Anti-ORM serum is necessary to phenotyping ORM. This communication describes the preparation of the antiORM serum. The anti-ORM sera were produced in three New Zealand rabbits cimmunized with ORM which was isolated and purified from human sera previously in our laboratory. The results of identification showed that the specificity of the home made anti-ORM and the commercial anti-ORM sera (Sigma) were identical. The titer of the home made anti-ORM serum was 128. 2.4?g/ml ORM could be detected by double immunodiffusion with the anti-ORM serum. In addition, the anti-ORM serum did not cross-react with other human serum proteins.