GnRH类似物对化疗大鼠卵泡凋亡的影响

目的探讨促性腺激素释放激素激动剂(GnRH-a)、拮抗剂(GnRH-ant)对环磷酰胺(CTX)诱导的大鼠卵泡凋亡的干预作用。方法36只雌性Sprague-Dawley大鼠随机分为6组,即实验对照组、CTX组、GnRH-a+生理盐水(NS)组、GnRH-a+CTX组、GnRH-ant+NS组及GnRH-ant+CTX组,每组6只,于结束用药的第1～2周内的动情间期处死,采用末端转移酶介导的缺口末端标记法(TUNEL)结合透射电镜检测卵泡的凋亡情况。结果(1)TUNEL检测晚期生长卵泡的颗粒细胞凋亡率高于早期卵泡,使用CTX组别的卵母细胞、颗粒细胞的凋亡率高于相应对照组,其差异均有显著性意义(P<0.05)。其中GnRH-a两组[(33.40±4.59)～(73.25±5.35)]的颗粒细胞凋亡率较GnRH-ant两组[(27.46±4.52)～(49.38±5.02)]明显升高,其差异有显著性意义(P<0.05);但早期卵泡卵母细胞的凋亡率在GnRH-a两组[(23.48±4.25)～(36.15±4.23)]与GnRH-ant两组[(21.47±3.81)～(34.04±5.54)]的相应组间差异无显著性意...     

Anti-Mullerian Hormone: A New Marker of Ovarian Function

Objectives

The aim of this study was to determine day 3 Serum AMH, FSH, LH, Estradiol (E₂), Inhibin B levels, ovarian volume, and antral follicular count to assess ovarian function.

Methods

This study was conducted on 130 infertile women between age 18 and 43 years. Day 3 Serum AMH level was estimated by sandwich enzyme immunoassay; Serum FSH, S. LH, S. E₂, by solid-phase two-site chemiluminescent immunometric assay; Inhibin B by ELISA; and Ovarian volume and AFC, by transvaginal ultrasonography.

Results

With advancing age, Serum AMH level (p < 0.0001), AFC (p < 0.05), ovarian volume (>0.05), and Inhibin B (>0.05) were decreased, and Serum FSH (p < 0.05), LH (p > 0.05), and E₂ (p < 0.05) were increased. Serum AMH level was 4–6.8 ng/ml with optimal fertility in 26.15 % cases and 2.2–4.0 ng/ml with satisfactory fertility in 53.85 % cases. Serum AMH levels were more strongly correlated with AFC (p < 0.0001) and ovarian volume (p < 0.0001).

Conclusion

Serum AMH levels were more robustly correlated with AFC than FSH, LH, E₂, and Inhibin B on day 3 of the cycle. This suggested that serum AMH might be taken as single test to reflect ovarian reserve.     

Pseudomonas fluorescens-like bacteria from the stomach:A microbiological and molecular study

AIM:To characterize oxidase-and urease-producing bacterial isolates,grown aerobically,that originated from antral biopsies of patients suffering from acid peptic diseases.METHODS:A total of 258 antral biopsy specimens were subjected to isolation of bacteria followed by tests for oxidase and urease production,acid tolerance and aerobic growth.The selected isolates were further characterized by molecular techniques viz.amplifications for 16S rRNA using universal eubacterial and HSP60 gene specific primers.The amplicons were subjected to restriction analysis and partial sequencing.A phylogenetic tree was generated using unweighted pair group method with arithmetic mean(UPGMA) from evolutionary distance computed with bootstrap test of phylogeny.Assessment of acidity tolerance of bacteria isolated from antrum was performed using hydrochloric acid from 10-7 mol/L to 10-1 mol/L.RESULTS:Of the 258 antral biopsy specimens collected from patients,179(69.4%) were positive for urease production by rapid urease test and 31%(80/258) yielded typical Helicobacter pylori(H.pylori) after 5-7 d of incubation under a microaerophilic environment.A total of 240(93%) antral biopsies yielded homogeneous semi-translucent and small colonies after overnight incubation.The partial 16S rRNA sequences revealed that the isolates had 99% similarity with Pseudomonas species.A phylogenetic tree on the basis of 16S rRNA sequences denoted that JQ927226 and JQ927227 were likely to be related to Pseudomonas fluorescens(P.fluorescens).On the basis ofHSP60 sequences applied to the UPGMA phylogenetic tree,it was observed that isolated strains in an aerobic environment were likely to be P.fluorescens,and HSP60 sequences had more discriminatory potential rather than 16S rRNA sequences.Interestingly,this bacterium was acid tolerant for hours at low pH.Further,a total of 250(96.9%) genomic DNA samples of 258 biopsy specimens and DNA from 240 bacterial isolates were positive for the 613 bp amplicons by targeting P.fluorescens-specific conserved putative out     

基础窦卵泡数与高生育年龄患者IVF/ICSI-ET结局的关系及经济学评价

目的:探讨40岁以上女性进行体外受精/单精子卵胞浆内注射-胚胎移植(IVF/ICSI-ET)时基础窦卵泡数(bAFC)预测助孕结局的价值及所需的医疗成本。方法:将2007年1月至2010年5月于本院行IVF/ICSI-ET治疗不孕症的101例高生育年龄女性按bAFC分为3组:A组(bAFC<6个),B组(6个≤bAFC<10个)和C组(bAFC≥10个),回顾性分析各组的助孕结局及治疗成本。结果:A组45例,47个周期;B组35例,41个周期;C组21例,24个周期。3组患者的年龄、不孕年限、体重指数、促性腺激素总量、促性腺激素刺激时间和流产率比较,差异无统计学意义(P>0.05);C组的基础卵泡刺激素较低、促性腺激素启动剂量较小,人绒毛膜促性腺激素日血清E2水平较高,而获卵数、2原核期个数(2PN)、成熟卵子个数、优质胚胎数和移植胚胎数明显增加,周期临床妊娠率和着床率明显升高,与A组和B组比较,差异有统计学意义(P<0.05)。3组患者首次助孕的各项治疗费用及总费用比较,差异均无统计学意义(P>0.05)。结论:bAFC对高生育年龄女性的助孕结局具有一定的预测价值,bAFC≥10个具有较好的临床结局,而不同bAFC个数的治疗费用相似。     

抗苗勒管激素与不同表型多囊卵巢综合征发病特征的相关性分析

目的探讨不同表型多囊卵巢综合征(polycystic ovary syndrome,PCOS)患者血清抗苗勒管激素(AMH)及性激素指标水平,并评估AMH与这些指标的相关性。方法应用UNION免疫分析仪和Uni Cel Dx I800免疫分析系统检测702例PCOS患者和118例健康女性(对照组)AMH和其他性激素水平,并进行超声下窦卵泡计数(AFC)和卵巢体积测量。应用Pearson分析进行双变量相关分析。结果 PCOS患者的卵泡刺激素(FSH)低于对照组,其中无排卵或稀发排卵(OA)+高雄激素血症(HA)+多囊卵巢(PCO)组与对照组间的差异具有统计学意义(P0.05)。黄体生成素(LH)、L H/F S H、AMH均显著高于对照组。血清睾酮(T)水平在O A+H A组和O A+H A+P C O组显著升高。各组间泌乳素(P R L)、雌二醇(E2)水平无明显差异。A M H与F S H呈负相关,与L H、L H/F S H、T、A F C、左卵巢体积和右卵巢体积呈正相关。结论血清AMH浓度可以反映窦卵泡的数目和血清T的浓度高低,可作为PCOS诊断与监测指标之一,提高PCOS诊断的简便性,在临床上有广泛的应用前景。     

安坤种子丸对卵巢储备功能下降致不孕症AFC和OV的影响

目的:观察安坤种子丸对卵巢储备功能下降致不孕症患者卵巢窦卵泡数目(AFC)和卵巢体积(OV)的影响。方法:卵巢储备功能下降致不孕患者32例,于月经干净后第3日口服安坤种子丸,10粒/次,3次/d,经前1周及经期、急性炎症期停药(闭经者除外);服用3个月经周期为1个疗程,连续治疗6月,采用自身对照法观察治疗后AFC和OV变化情况,血清卵泡刺激素(FSH)、黄体生成素(LH)、雌二醇(E2)及月经、妊娠及中医症状积分等改善情况。结果:中医症状积分较治疗前明显下降,E2水平明显上升,FSH水平明显下降,差异有统计学意义(P0.05);LH无明显变化,差异无统计学意义(P0.05)。基础窦卵泡数目较治疗前增加(P0.05),差异有统计学意义(P0.05);卵巢体积(纵径、横径、前后径)较治疗前增大,差异有统计学意义(PO.05)。治疗后6月10例患者妊娠,且月经周期、经量恢复正常,2例患者月经及其兼证等无明显改善。结论:安坤种子丸能改善卵巢储备功能下降致不孕患者的卵巢功能,减轻临床症状,可能与促进AFC和OV正常反应有关。     

Notch signaling pathway in cumulus cells can be a novel marker to identify poor and normal responder IVF patients

Purpose

To identify expression of Notch signaling proteins and its ligands in human cumulus cells which were obtained by follicle aspiration and to compare the differences of this protein expression between the normal and poor responder patients.

Methods

47 patients who applied to the assisted reproductive treatments with various infertility problems were included to the study. Controlled ovarian hyperstimulation was performed by using GnRH agonist and gonadotropins. Serum hormon levels were measured by using Chemilluminescent Microparticle Immunoassay method for each patient. After ultrasonographic ovarian follicle screening, oocytes were retrievaled. Cumulus cells obtained from the follicles were cultured for 72 h and immunuhistochemistry were performed for Notch1, Notch2, Notch3, Notch4, Jagged1 and Jagged2 proteins. Histological score (HSCORE) were applied to all of the samples. The association between Notch and its ligands protein expressions and the oocyte-embryo quality and fertilization rates were investigated.

Results

Significant differences were observed between the mean values of age, AMH and FSH in the 2 groups, respectively (p < 0.05). However, the mean female infertility duration and total gonadotropin dose did not differ significantly between normal and poor responder groups. All the patients cumulus cells expressed Notch1, Notch2, Notch3, Notch4, Jagged1 and Jagged2. There was a significant difference (p < 0.05) only for Notch2 between the 2 groups and a positive correlation between Notch2 and Notch3 (r = 547, p = 0.00) expressions were noted. Furthermore, no correlations were observed between the following: Notch1, Notch2, Notch3, Notch4, Jagged1, and Jagged2 expression; mature oocyte number; fertilization rates, and embryo quality percentage in both of the groups.

Conclusion

Notch signalling proteins can be an indicator for understanding the ovarian response in ovulation induction.