Objective To study prospectively the values of basal and dynamic measurement of inhibin B(INHB), estrodiol (E_2)following gonadotrophin therapy in vitro fertilization(IVF)cycles in predicting ovarian response to stimulation in young women. Methods A total of 57 patients younger than 40 years of age undergoing their first cycle of long protocol IVF treatment were studied and serum INHB, E_2 levels were detected on day 3 of the menstrual cycle, before the first administration of gonadotrophin (day 0), on days 1 and 5 after gonadotrophin therapy(day 1, day 5 ). Ovarian response was presented by: number of oocytes/total rFSH dose and square root of (number of follicles/total rFSH dose). According to number of follicles, number of oocytes and presence or absence of ovarian hyperstimulation syndrome(OHSS), we categorized the results into three different groups: poor response, normal response and OHSS. Results (1) Hormone levels on days 1,5 of rFSH stimulation: There were positive correlation between INHB (r_S:0.69-0.73), E_2 (r_S:0.60-0.73) and ovarian response (P=0.000). (2) INHB, and E_2 levels on day 5 of rFSH stimulation were significantly different between poor response, normal response and OHSS groups(P

Objective To analyze the factors influencing the outcome in a frozen thawed embryo transfer (FTET)program Methods Sixty FTET cycles performed in 53 cases from September 1997 to May 2000 were analyzed retrospectively The related parameters were compared between the conceived and non conceived cycles Results One hundred and seventy eight out of 252 thawed embryos were survival Embryo transfers were undergone in 57 cycles (53 patients), resulting in 17 pregnancies (30% per transfer or 28% per thawed cycle) There were no significant difference between conceived and non conceived cycles in terms of the controlled ovarian hyperstimulation protocols, numbers of developed follicle and oocyte retrieved, fertilization rate, numbers of frozen embryo and the luteinizing hormone, estradiol, progesterone levels on human chorionic gonadotropin triggering day The percentage of good quality embryo before freezing and after thawing and survival thawed embryos were higher in conceived cycles than those in non conceived cycles (83 8% Vs 60 7%, 76 8% Vs 50 0%, 82 4% Vs 66 3%, respectively P

Objective · To extract and identify exosomes in follicular fluid from patients with polycystic ovary syndrome in order to determine the existence of exosomes in follicular fluid, to isolate and extract miRNAs in exosomes, and to detect relative expression of miRNAs. Methods · Exosomes in follicular fluid were collected with membrane affinity chromatography and their size and morphology were observed with the transmission electron microscope. Exosome protein markers CD63 and CD81 were detected with flow cytometry. miRNAs in purified exosomes were extracted and expressions of miR-125b, miR-19b, and miR-222 were measured with TaqMan real-time PCR. Results · Exosomes in follicular fluid were circular or elliptic under the transmission electron microscope with diameters of around 30-100 nm. They had complete membrane structure and contained low density matter. Flow cytometry showed that CD63 and CD81 were positively expressed in exosomes. Real-time PCR detected expressions of miR-125b, miR-19b, and miR-222. Conclusion · Exosomes can be collected in follicular fluid from patients with polycystic ovary syndrome. Transmission electron microscopy and flow cytometry can be used to identify exosomes in follicular fluid. miR-125b, miR-19b, and miR-222 can be detected in exosomes.

AIM To study the effect of estrogen on the expression of amyloid precursor protein (APP) carboxyl terminal fragment in ovariectomized female rat hippocampus and cortex regions. METHODS Ovariectomized female rats were fed with Premarin or Progynova for 3 cycles before sacrificed. S P immunohistochemistry was performed to detect the APP C terminal fragment distribution, and semi quantitative H score was used to compare the expression. RESULTS APP C terminal fragment expression in both female rat hippocampus and cortex increased significantly after ovariectomy. Compared with ovariectomized control, C terminal fragment expression in the above regions decreased. It was even lower in progynova group than in premarin group. CONCLUSION Both premarin and progynova down regulate the APP C terminal expression in ovariectomized female rat hippocampus and cortex. The modulation of progynova is more effective.

Objective To observe the effects of renin - angiotensin system ( RAS ) and steroid hormones onpregnancy in in vitro fertilization and embryo transfer(IVF-ET). Methods .53 tubal infertility women underwent IV F-ET under control of ovarian hyperstimulation with GnRHa/FSH/hMG/hCG. Plasma total renin, serum estradiol(E2),progesterone(P) and testosterone(T) were measured on the day of injection of injection of hCG and 36h after hCG( before getting the oocytes). ResultsPlasma total renin level on the day of hCG in pregnant group was higher than that in nonpregnant group(P<0.05), E2 and P lower than that in nonpregnant group(P<0.05, P<0.01). Plasma total renin and E2 levels 36h after hCG in pregnant group were lower than that in nonpregnant group( P<0.05). There was no difference in other hormones between the two groups. ConclusionThe high concentration of total renin on the day of hCG injection and its low concentration 36h after hCG administration are probably conducive to pregnancy.

0.05). Conclusions Our prospective study suggests that mode of anesthesia does not influence significantly the outcome of newborn infants delivered by elective cesarean section. It seems that both general and epidural anesthesia can be used in elective term cesarean sections safely.

Objective To investigate the role of follicle stimulating hormone receptor (FSHR) expression on granulosa cells in ovarian response of women undergoing gonadotropin stimulation. Methods A total of 60 women were recruited and divided into poor, moderate and high responders according to the number of follicles. FSHR expression was detemined by Western blot on granulosa cells obtained by follicular aspiration. The peak levels of serum estradiol (E_2) were meassured by immunofluorescent assay. Results (1) The expression of FSHR was significantly different among the 3 groups, being 0.19?0.07, 0.34?0.16, and 0.45?0.18 for poor, moderate and high responders, respectively(P

AIM: To study the regulatory effect two different estrogen reagents on expressions of estrogen receptor ? and ? in female rat hippocampus and cortex regions. METHODS: 12 cycles after ovariectomy, female rats were orally injected with premarin or progynova for 3 cycles before sacrificed. Semiquantitative RT-PCR was used to detect the ERs mRNA expression and SP immunohistochemistry was performed to measure the ERs protein distribution and expression. RESULTS: In premarin group, ER ? mRNA levels in both hippocampus and cortex tissues decreased significantly compared with control. ER ? protein level in hippocampus was lower than that in the control. However, ER ? protein level in cortex had no statistical difference. ER ? mRNA in the two regions and ER ? protein in cortex had no statistical differences compared with control, while ER ? protein level in hippocampus was higher than that in the control. In progynova group, both mRNA and protein levels of ER ? increased significantly in the two regions compared with the control, and ER ? mRNA level also increased in hippocampus, but ER ? mRNA level in cortex and ER ? protein levels in the above two regions showed no statistical differences. CONCLUSION: There were differential regulatory effects on ER ? and ER ? expression in female rat cognitive regions between the two different types of estrogen reagents, which may be one of the mechanisms of varied effects in different estrogen replacement therapy reagents.

Objective To investigate whether the limited ovarian stimulation (LOS) could avoid the severe ovarian hyperstimulation syndrome (OHSS) in patients with high risk of OHSS. Methods Ten infertile patients were diagnosed as polycystic ovarian syndrome(PCOS) with high risk of OHSS. All of them were arranged LOS cycles, a long-induction protocol using gonadotropin releasing hormone agonist (GnRHa) for controlled ovarian hyperstimulation. A full dose of human chorionic gonadotropin (10 000 U) was administered when the leading follicle reached a mean diameter of 12.0-14.5 mm. Oocytes were retrieved 36 hours later, followed by conventional in vitro fertilization (IVF) or intracytoplasmic sperm injection (ICSI) and embryo transfer. Results Ten patients produced 11-35 oocytes, including 4-28 oocytes of metaphase Ⅱ. Embryos were transferred in all of ten patients and eight clinical pregnancies were diagnosed. Unfortunately, ectopic pregnancy occurred in one of the patients. None of them experienced the symptoms of OHSS. Conclusions LOS may play a valuable role in preventing OHSS and achieving enough mature oocytes for the patients of PCOS. Furthermore, this protocol would not reduce the pregnancy rate of the patients.

0.05). Conclusion The technique of PEP-MN-PCR from single-cell for simultaneous detection of HLA-A, B, DR types were efficient and accurate. It was possible to apply the techniques of PEP-MN-PCR to detect HLA-A, B, DR typing for preimplantational diagnosis, preliminary selection of HLA matching embryos and the patient sibling who needs cord blood stem cell transplantation.