左炔诺孕酮宫内节育系统治疗无排卵型功能失调性子宫出血的疗效

目的观察左炔诺孕酮宫内节育系统(曼月乐,LNG-IUS)治疗无排卵型功能失调性子宫出血(AUB-O)的疗效及其对子宫内膜血管内皮细胞生长因子、雌激素受体和孕激素受体的影响。方法将2015年6月~2016年9月我院收治的78例AUB-O患者,随机分为对照组和观察组,每组39例。在常规治疗基础上,对照组予去氧孕烯炔雌醇片(妈富隆)口服,观察组予曼月乐治疗。比较两组治疗前与治疗12个月后血红蛋白水平(HGB)、血清雌二醇(E_2)、孕酮(P)、垂体分泌卵泡刺激素(FSH)、黄体生成素(LH)激素水平及子宫内膜厚度,采用SP免疫组织化学检测两组治疗前及12个月后子宫内膜腺体和间质中的血管内皮生长因子(VEGF)、雌激素受体(ER)、孕激素受体(PR)的阳性表达。比较两组的临床疗效、不良反应。结果观察组的控制出血及完全止血时间均显著短于对照组,差异均有统计学意义(P0.01)。治疗后,两组的血红蛋白水平均较治疗前显著升高(P0.01),子宫内膜厚度显著减少(P0.01),E_2均较治疗前显著降低,P显著升高,且观察组改善程度较对照组更加明显,差异亦有统计学意义(P0.01)。观察组患者治疗后的子宫内膜腺体及间质中的VEGF阳性率显著高于治疗前,ER、PR阳性率显著低于治疗前(P0.01)。且治疗后观察组的VEGF阳性率高于对照组,ER、PR阳性率低于对照组(P0.01)。观察组的的总有效率为94.9%,显著高于对照组的79.5%(P0.05)。两组的不良反应发生情况无统计学差异(P0.05)。结论曼月乐治疗AUB-O能更好的通过调节子宫内膜ER、PR、VEGF的表达,达到临床治疗效果,且较口服妈富隆更加简便、有效、安全。     

多发性子宫内膜息肉电切术后不同治疗方式效果对比研究

目的 对比分析多发性子宫内膜息肉电切术后宫腔内放置左炔诺孕酮宫内缓释系统与口服炔雌醇环丙孕酮片的效果。方法 选取2015年1月至2017年6月信宜市人民医院收治的86例多发性子宫内膜息肉患者分为研究组和对照组,均给予宫腔镜下子宫内膜息肉电切术,研究组术后放置左炔诺孕酮宫内缓释系统,对照组术后口服炔雌醇环丙孕酮片,比较两组治疗前、治疗后3、6、12、24、36个月子宫内膜厚度、息肉复发率、月经改善率、并发症发生率的差异。结果 与治疗前相比,治疗后3、6、12个月两组子宫内膜厚度均显著变薄,而治疗后24、36个月研究组子宫内膜厚度较对照组变薄(P＜0.05);治疗后3、6、12个月两组息肉复发率、月经改善率无显著性差异(P＞0.05),治疗后24、36个月研究组息肉复发率分别为6.98%、11.63%,较对照组的25.58%、32.56%显著降低(P＜0.05),月经改善率分别为95.35%、93.02%,较对照组的79.07%、76.74%显著提高(P＜0.05);治疗后3、6、12、24、36个月两组并发症发生率无显著性差异(P＞0.05)。结论 相较于口服炔雌醇环丙孕酮片,多发性子宫内膜息肉电切术后宫腔内放置左炔诺孕酮宫内缓释系统效果更优,患者的子宫内膜厚度显著变薄,月经情况得到改善,复发率降低,并且安全性较高,值得推广。     

子宫内膜异位症合并子宫内膜息肉术后长期管理效果分析

目的 比较子宫内膜异位症(EM)合并子宫内膜息肉(EP)术后单独使用促性腺激素释放激素激动剂(GnRH-a)和GnRH-a联合左炔诺孕酮宫内节育系统(LNG-IUS)的疗效.方法 选择2018年1月1日至2020年1月1日在安徽医科大学第一附属医院妇产科因EM合并EP接受宫腹腔镜联合保守性手术治疗的60例患者,按照随机...     

缓释左旋-18甲基炔诺酮皮埋避孕剂对骨密度和骨代谢的影响

对采用 Norplant R埋植剂和仿制 Norplant的国产埋植剂 型避孕的育龄妇女骨密度和骨代谢改变进行了 1年的随机前瞻性临床观察。 6 1例正常妇女被分为两组 :Norplant埋植剂组 30例 ,国产埋植剂组 31例。两组于埋植前和埋植后第 12个月时采用双能 X线骨密度测定仪 (DEXA)分别测定了腰椎 L2 ～ L4、股骨近端骨密度和骨矿含量。两组妇女埋植后第 12个月时腰椎 L2 ～ L4骨密度和骨矿含量均较埋植前明显增加 (P<0 .0 1) ,Norplant组骨密度平均增加2 .40 % ,骨矿含量平均增加 3.34 % ,国产埋植剂组分别增加 2 .75 %和 4.47% ;从年龄分析 ,以 2 5～ 2 9岁组腰椎 L2 ～ L4骨密度埋植后增加最为显著 ,Norplant组 P<0 .0 5 ,国产埋植剂组 P<0 .0 1。国产埋植剂组妇女埋植后第 12个月时股骨大粗隆骨密度和骨矿含量较埋植前明显增加 (P<0 .0 1) ;国产埋植剂组妇女空腹尿羟脯氨酸 /肌酐比值埋植后第 12个月时较埋植前明显下降 (P<0 .0 1) ;对使用妇女腰椎、股骨骨密度和骨代谢生化指标的影响 ,在两种埋植剂之间埋植前后比较均无显著差别 (P>0 .0 5 )。左旋 - 18甲基炔诺酮皮埋避孕剂对绝经妇女的骨骼是非有害的 ,对年轻妇女骨峰值的获得无明显影响。     

丙交酯乙交酯共聚物的毒性试验及其含左旋18-甲基炔诺酮微球对鼠的抗生育作用研究

对可生物降解聚合物丙交酯乙交酯共聚物进行了急性全身毒性,眼结膜刺激,肌肉刺激、热源、溶血、过敏等试验和含ＬＮＧ和ＰＬＡＧ微球注射剂对小鼠和大鼠的抗生育作用试验。结果表明：ＰＬＧＡ无毒、对眼结膜和肌肉无刺激性,无热源作用、无溶血作用、无致敏作用,具有良好的生物相容性。     

Long-term administration with levonorgestrel decreases allopregnanolone levels and alters GABA(A) receptor subunit expression and anxiety-like behavior

Fluctuations in the concentrations of the neuroactive steroid allopregnanolone are thought to influence γ-amino-butyric acid type A (GABA_A) receptor gene expression and function. Long-term treatment with ethinyl estradiol (EE) plus levonorgestrel (LNG), two of the most widely used steroids in the hormonal contraceptive pill, decreases allopregnanolone levels in rat cerebral cortex and plasma, alters GABA_A receptor expression and induces anxiety-like behavior. We evaluated which component of the hormonal contraceptive pill is responsible for the aforementioned changes. Female rats were injected subcutaneously (s.c.) with EE (0.030 mg) or LNG (0.125 mg) once a day for 4 weeks. Compared to the respective vehicle-treated control groups, EE decreased cerebral cortical levels of allopregnanolone, progesterone and pregnenolone by 76, 72 and 33%, respectively and hippocampal levels by 52, 56 and 50%, respectively. Likewise, LNG decreased cerebral cortical levels of allopregnanolone, progesterone and pregnenolone by 75, 68 and 33%, respectively, and hippocampal levels by 55, 65 and 60%, respectively. Administration of LNG, but not EE, increased the abundance of the γ2 subunit peptide in cerebral cortex and hippocampus by 38 and 59%, respectively. Further, LNG, but not EE, decreased the time spent and the number of entries into the open arms of the elevated plus maze by 56 and 43%, respectively, an index of anxiety-like behavior. These results suggest that alterations in GABA_A receptor subunit expression and anxiety-like behavior induced by long-term treatment with combined EE/LNG appear to be caused by LNG. Given that both EE and LNG decrease allopregnanolone levels in a similar manner, these results further suggest that changes in allopregnanolone levels are not associated with GABA_A receptor expression.     

Levonorgestrel administration in emergency contraception: bleeding pattern and pituitary-ovarian function

BACKGROUND: This study was conducted to evaluate the effects of levonorgestrel administration for emergency contraception (EC) on bleeding pattern and pituitary-ovarian function. STUDY DESIGN: In 69 women with a reported stable menstrual cycle length of 24-34 days, we investigated bleeding patterns following EC administration in the follicular (n=26), periovulatory (n=14) and luteal (n=29) phase. In a subgroup of 8 women, hormonal evaluation and ultrasonography were performed. RESULTS: EC taken in the follicular, but not in the periovulatory or luteal phase, significantly shortened cycle length by 10.9+/-1 days. The subsequent cycle was not affected. EC taken in the late preovulatory phase, prior to the gonadotrophin surge, suppressed ovulation (n=7), while ovulation was not blocked when EC was given during an ongoing luteinizing hormone (LH) pulse (n=1). CONCLUSIONS: Our data indicate that EC given before the onset of the luteinizing hormone (LH) surge inhibits ovulation and hastens the end of the current menstrual cycle. Subsequently, the length of the following menstrual cycle returned as prior to treatment. By contrast, levonorgestrel administered after the expected ovulation has no effect on menstrual cycle length.     

卵巢子宫内膜异位囊肿剥除术后放置左炔诺孕酮宫内节育器的临床观察

目的:探讨卵巢子宫内膜异位囊肿剥除术后宫腔放置左炔诺孕酮宫内节育器(LNG-IUS)的临床疗效。方法:选择2006年6月~2008年4月在该院施行卵巢子宫内膜异位囊肿剥除术的患者,31例为术后放置LNG-IUS(LNG-IUS组),30例为术后口服孕三烯酮(对照组),比较术前VAS3分者治疗后VAS的评分变化及观察复发情况等。结果:LNG-IUS组平均VAS评分由术前的(6.45±0.47)分分别降至治疗3个月及6个月后的(1.65±0.36)分和(1.85±0.48)分,治疗3个月和6个月与术前VAS评分比较有统计学差异(P0.01),但与孕三烯酮组比较差异无统计学意义(P=0.611,P=0.462);治疗1年LNG-IUS组与对照组中重度痛经的发生率分别为12.90%(4/31)和30.00%(9/30),两组复发率分别为19.35%(6/31)和33.33%(10/30),中重度痛经的发生率和复发率两组比较无统计学差异(P=0.623,P=0.255)。愿意继续接受治疗的LNG-IUS组(87.10%)明显高于对照组(46.67%),差异有统计学意义(P0.01)。结论:LNG-IUS可有效缓解卵巢子宫内膜异位囊肿的相关疼痛,有较好的依从性,可作为内异症保守性手术后预防或延缓复发的辅助性治疗方法。     

Hormonal evaluation and midcycle detection of intrauterine glycodelin in women treated with levonorgestrel as in emergency contraception

Background

The study was conducted to assess the effects of levonorgestrel (LNG) on hormonal behavior and on the secretory pattern of intrauterine glycodelin at the midcycle of ovulatory women.

Study Design

Thirty healthy sterilized women with normal ovarian function were studied during one control untreated cycle and one LNG-treated cycle. In the treated cycle, each woman received two doses of 0.75 mg of LNG 12 h apart during the preovulatory phase approximately 2 days before the LH surge. Daily follicle development recordings were performed until follicle rupture was observed, and serum glycodelin, LH, estradiol, estrone and progesterone were measured as well. In addition, glycodelin concentrations were assayed in uterine flushing obtained on Days LH+1 and LH+12.

Results

LNG did not modify follicle rupture in 20 of 30 women. In spite of ovulatory progesterone and the occurrence of follicle rupture in these women, luteal phase length was significantly decreased, as well as the serum concentrations of LH, estradiol and estrone in the periovulatory phase. Glycodelin in serum and uterine flushings was significantly elevated in the periovulatory phase when compared to control cycles.

Conclusions

LNG taken at the dose used in emergency contraception before the LH surge increased prematurely serum and intrauterine concentrations of glycodelin at the time of ovulation. Since there are well established glycodelin inhibitory effects upon fertilization, these results may represent an additional action of LNG in situations where the intervention did not interfere with ovulation.