大鼠视神经钳伤后外侧膝状体细胞损伤的研究

目的　探讨大鼠视神经钳伤后 ,外侧膝状体 (lateralgeniculatebody,LGB)细胞的损伤情况。方法　用 4 0g视神经损伤钳 ,压迫Sprague Dawley(SD)大鼠双侧视神经 30s,制成视神经部分定量损伤的动物模型。对LGB连续梯度切片 ,7d后用末端脱氧核苷酸转移酶介导的dUTP缺口末端标记法 (teriminaldeoxynucleotidyltransferase mediateddUTPnickend labeling ,TUNEL)对LGB细胞进行凋亡检测。 1个月后通过免疫组化染色技术 ,用兔抗鼠神经丝 (neurofilament,NF)单克隆抗体对LGB的神经元进行检测。同时经视觉中枢注入荧光染料颗粒蓝 ,对LGB细胞进行逆行荧光标记 ,在 70 0nm波长荧光显微镜下对连续切片的LGB标记细胞进行平均密度计数 ,并与对照组比较。结果　TUNEL法染色证实LGB细胞发生凋亡。对照组神经丝免疫组化染色呈清晰的条索状 ,而实验组明显减少。对照组LGB细胞密度均值为 (5 172± 2 4 8)个 /mm2 ,而损伤组LGB细胞密度均值为 (414 4± 6 1)个 /mm2 ,两组比较差异有非常显著意义 (t=8 995 ,P <0 0 1)。结论　在大鼠视神经钳伤后 ,LGB细胞受损 ,其损伤机制与凋亡有关     

胎儿宫内发育迟缓时胎盘病理改变与孕妇血及脐血中一氧化氮 …

目的 了解胎儿宫内发育迟缓（ＩＵＧＲ）时胎病理改变与母血及脐血中一氧化氮（ＮＯ）水平的关系。方法 对１９９７年１１月￣１９９８年１０月３８例妊娠合并胎儿宫内发育迟缓（ＩＵＧＲ组）及３０例正常３０例正常孕妇（对照组）分娩后的胎盘及胎儿附属物进行分析。     

p27kip1蛋白在卵巢上皮癌中的表达及其临床意义

目的 :研究p2 7kip1在卵巢上皮癌中的表达及其临床意义。方法 :采用免疫组化SP法检测 2 0例卵巢良性、5 8例卵巢恶性上皮性肿瘤中p2 7kip1蛋白的表达。应用Kaplan Meier法及Cox比例风险回归模型 ,分析p2 7kip1蛋白表达与卵巢上皮癌患者预后的关系。结果 :(1)卵巢良性和恶性上皮性肿瘤中p2 7kip1蛋白表达阳性率分别为75 .0 % ,4 6 .6 % ,恶性肿瘤中p2 7kip1蛋白表达阳性率明显低于良性肿瘤 ,恶性肿瘤染色阳性部位以胞浆为主 ;(2 )p2 7kip1蛋白的表达与病理学分级有关 ,与年龄、临床分期、淋巴结转移、组织学亚型无关 ;(3)卵巢上皮癌中 ,p2 7kip1蛋白的表达与bax蛋白的表达呈正相关 ,与bcl 2蛋白的表达呈负相关 ,与ki6 7蛋白无明显相关性 ;(4)p2 7kip1蛋白表达是影响卵巢上皮癌患者预后的独立因素 ,阳性者预后较好。结论 :p2 7kip1蛋白可能与卵巢上皮癌的发生有关。p2 7kip1蛋白可作为判断患者预后的指标。     

白介素-1对体外受精-胚胎移植着床率的影响

目的　探讨妇女在体外受精 -胚胎移植 (invitrofertilizationandembryotransfer ,IVF -ET)周期中血清及卵泡液中白介素 - 1α、β(IL 1α、IL 1β)水平变化规律及其与着床率的关系。 方法　选取 2 0 0 0年 7月至 9月南方医院生殖中心行IVF -ET患者 36例。收集肌注HCG日、取卵日、胚胎移植日的血清和卵泡液 ,采用定量酶联免疫方法检测血清、卵泡液中IL 1α、IL 1β水平 ,利用放射免疫法测定IVF -ET过程中不同时段血清雌二醇 (E2 )、卵泡刺激素 (FSH)、黄体生成激素 (LH)、孕酮 (P)水平 ,按是否胚胎着床分组 ,对两组临床资料、激素和IL 1α、IL 1β水平进行回顾性相关分析。结果　IVF -ET中 ,着床组的卵泡液IL 1β水平明显高于非着床组(P <0 0 0 1) ,在HCG日或移植日 ,两组血清IL 1β浓度相比差异有显著性意义 (P <0 0 5 )。卵泡液及HCG日血清IL 1β水平与卵细胞成熟度相关 (r =0 74 ,P <0 0 1;r =0 81,P <0 0 1) ,HCG日血清IL 1β水平与血清E2 正相关 (r =0 83,P <0 0 1)。血清及卵泡液IL 1α水平两组差异均无显著性意义 (P >0 0 5 )。结论　IL 1β与E2 、卵细胞成熟度相关 ,血清IL 1β参与卵泡的生长发育 ,调控卵细胞成熟及内膜生长 ,参与IVF -ET胚胎着床过程 ,影响胚胎着床率     

Surgical and Oncologic Outcomes of Radical Abdominal Trachelectomy Versus Hysterectomy for Stage IA2-IB1 Cervical Cancer

Study Objective: To compare the surgical and oncologic outcomes between abdominal radical trachelectomy (ART) and radical hysterectomy (RH) for stage IA2-IB1 cervical cancer.Design: A retrospective cohort study (Canadian Task Force classification II-2).Setting: Shandong Cancer Hospital, Shandong, China.Patients: Three hundred twenty-nine patients with IA2-IB1 cervical cancer.Interventions: All patients underwent ART or RH.Measurements and Main Results: All patients were divided into ART (n?=?143) and RH (n?=?186) groups according to the surgical approach. Additionally, oncologic and fertility outcomes were compared for different tumor pathologies and sizes in ART patients. The ART group had similar case characteristics as the RH group, except that the ART group had a longer surgical time. During a similar follow-up period, there were 4 (2.9%) recurrences and 3 (2.2%) patients who died from recurrence in the ART group compared with 8 (4.6%) recurrences and 4 (2.3%) patients who died from recurrence in the RH group (p?=?.444 and p?=?.999, respectively). In the ART group, squamous cell carcinoma (SCC) patients had a 5-year overall survival and pregnancy rate similar to those of non-SCC patients (98.1% vs 96.8%, p?=?.999; 33.3% vs 26.7%, p?=?.873), and patients with tumors ≤2 cm and 2 to 4 cm experienced a similar 5-year overall survival rate (97.0% vs 98.6%, p?=?.999), except patients with tumors ≤2 cm had a higher pregnancy rate (45.2% vs 17.2%, p?=?.020).Conclusion: ART seems to have similar surgical and oncologic outcomes to RH, except ART has a longer surgical time. Both non-SCC patients and stage IA2-IB1 patients with 2- to 4-cm tumors can undergo ART safely. Patients with tumors ≤2 cm have a higher pregnancy rate than patients with 2- to 4-cm tumors.     

不同发育天数囊胚冻融移植后妊娠结局分析

目的比较不同发育天数冻融囊胚移植后的妊娠结局。方法回顾性分析1 176例行冻融囊胚移植患者的临床资料,其中植入前遗传学诊断(preimplantation genetic diagnosis,PGD)周期135例,比较第5日单囊胚移植(single embryo transfer,SET)组、双囊胚移植(double embryo transfer,DET)组与第6日SET组和DET组的妊娠结局。结果同是优质囊胚级别的条件下,第5日DET组的生化妊娠率(56.91%)、临床妊娠率(53.25%)以及多胎妊娠率(1.20%)显著高于其他组(P0.05);第5日DET组与SET组的胚胎着床率无统计学差异(P0.05),但均显著高于第6日DET组和SET组(P0.05);同级别以及PGD周期中第5日和第6日SET组相比较,第5日组的生化妊娠率、胚胎着床率均显著高于第6日组(P0.05)。结论在同是优质囊胚的条件下,第5日SET、DET及经PGD诊断的SET妊娠结局均优于第6日。     

子宫动脉栓塞术治疗子宫肌瘤42例临床分析

目的 探讨子宫动脉栓塞术（UAE）治疗子宫肌瘤的疗效。方法 选择42例子宫肌瘤患者,以Seldinger技术完成单侧股动脉插管,根据数字减影血管造影（DSA）检查结果,选用管径为4－5F（1F=0.33mm)的脾管、肝管或cobra导管,或选用3F微导管,插管至双侧子宫动脉并经DSA检查证实后,以携带有抗生素的明胶海绵颗粒栓塞该处血管。结果 DSA检查发现,子宫肌瘤血液供应丰富。UAE治疗6－12个月后,子宫肌瘤患者的临床症状明显缓解,月经量减少26．3％－75．2％;UAE治疗后第12个月、第18个月肌瘤体积分别缩小77．7％、83．0％,子宫体积分别缩小54．9％、62．7％。术后有不同程度的下腹痛、低热,持续1－3周,经对症处理后症状逐渐消失。结论 UAE可有效地缩小肌瘤及子宫的体积,并明显改善子宫肌瘤患者的临床症状。     

卵巢早衰治疗策略探讨

目的　评价性激素替代治疗 (hormonereplacementtreatment,HRT)对卵巢早衰 (prematureovarianfail ure ,POF)患者的疗效 ,探讨卵巢早衰可能有效的促排卵方案。方法　采用前瞻性研究方法对 19例卵巢早衰患者 ,行HRT共 3～ 6个周期 ,观察服药前后临床症状、盆腔超声相、血清生殖激素变化及停药后卵泡发育情况 ,并对个别患者行促排卵治疗观察疗效。结果　 19例患者经HRT临床症状明显缓解。与服药前比较 ,血清卵泡刺激素 (FSH)水平明显下降 (P <0 0 1) ,血清黄体生成素 (LH)水平显著下降 (P <0 0 5 )。双侧卵巢及子宫体积无显著变化 (P >0 0 5 ) ,子宫内膜明显增厚 (P <0 0 1)。停药后 1例自然妊娠 ,1例自发排卵 ,1例用促性腺激素释放激素激动剂 (GnRHa) /绝经期促性腺激素 (HMG) /绒毛膜促性腺激素 (HCG)治疗有排卵。服药期间无肝功能损伤及其它副反应。结论　性激素替代治疗卵巢早衰 3～ 6个周期 ,可使临床症状缓解 ,血清FSH、LH明显下降 ,利于促排卵治疗成功。     

Expression of FK506-binding protein 52 (FKBP52) in chorionic villi with early recurrent spontaneous abortion

Objective: To investigate the mRNA and protein expression of FK506-binding protein 52 (FKBP52) in the chorionic villi of patients with recurrent spontaneous abortion (RSA) and normal women during early pregnancy.

Methods: Fresh chorionic villus tissues were collected from 60 subjects. A total of 30 patients with a history of RSA were enrolled into the RSA group and 30 normal pregnant women were enrolled into the control group. The FKBP52 mRNA expression levels in chorionic villi of the RSA patients and healthy controls were measured via semiquantitative RT-PCR. The protein distribution and expression levels of FKBP52 in chorionic villi were analyzed through immunohistochemistry (IHC). The correlation between FKBP52 expression and RSA was analyzed.

Results: We demonstrated that FKBP52 mRNA is expressed in chorionic villi samples of normal pregnancy and RSA. RSA patients exhibited significantly lower FKBP52 gene expression levels compared with those in normal pregnancies (p?<?0.05). FKBP52 immunoreactivity in chorionic villi was mainly observed in trophoblast cell cytoplasm. The FKBP52 protein expression levels in the chorionic villi of RSA patients was significantly lower than in normal women during pregnancy (p?<?0.05).

Conclusions: FKBP52 protein levels were decreased in the chorionic villi of RSA patients, which indicate that the decrease in FKBP52 may be associated with RSA. The low FKBP52 mRNA expression level, which is consistent with the IHC result, may affect embryonic development and even lead to abortion. FKBP52 may be involved in the pathogenesis of RSA and new therapies that increase the FKBP52 expression may help treat RSA.     

3-氯丙二醇和2、3-氧丙醇合并长期、间歇给药对恒河猴及大鼠毒性作用的观察

本文介绍了3-氯丙二醇和2,3-氧丙醇合并长期间歇用药对猴及大鼠的毒性观察,结果表明,以日剂量5mg/kg 3-氯丙二醇和75mg/kg 2,3-氧丙醇合并应用,可导至大鼠可逆性不育;对猴及大鼠的内脏器官、骨髓细胞增生度及微核数量、末梢血液细胞计数、分类,以及猴的染色体常规检查未见明显影响。表明合并用药有用药量小,给药时间短、起效快、毒性低等优点。