PHOSPHODIESTERASE 3 INHIBITORS: BLOCKERS OF OOCYTE MATURATION AND FERTILIZATION

磷酸二酯酶 3 抑制剂：卵母细胞成熟和受精的阻断剂

• 批准号: 7958433
• 负责人: JEFFREY T. JENSEN
• 金额: $ 8.03万
• 依托单位: OREGON HEALTH & SCIENCE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 2009
• 资助国家: 美国
• 起止时间: 2009-08-04 至 2010-04-30
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7958433
• 关键词: Adverse effects; Affect; Biology; Chronic; Computer Retrieval of Information on Scientific Projects Database; Contraceptive Agents; Contraceptive methods; Fertilization; Funding; Gonadotropins; Grant; Health Benefit; Institution; Macaca mulatta; Morals; Ovarian Stimulations; Ovary; Ovulation; Partner in relationship; Periodicity; Pregnancy; Primates; Protein Isoforms; Protocols documentation; Research; Research Methodology; Research Personnel; Resources; Source; United States National Institutes of Health; Unwanted Birth; abortion; corpus luteum; in vivo; inhibitor/antagonist; novel; oocyte maturation; phosphoric diester hydrolase; prevent; selective expression; unintended pregnancy

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Contraception provides significant preventative health benefits by reducing unintended pregnancy, abortions, and unwanted births. As side effects, access, and cultural or moral objections limit the universal acceptance of current methods, research into novel contraceptives is warranted. The purpose of this project is to explore the hypotheses that selective expression of phosphodiesterase (PDE) isoforms exists in the primate ovary, that selective blockade of the PDE3 isoform can be exploited to prevent spontaneous and gonadotropin-induced oocyte maturation, and that chronic treatment with a PDE3 inhibitor can prevent pregnancy in primates without affecting menstrual cyclicity or luteal function. The Specific Aims are to: (1) describe the basic biology of PDE expression in the primate ovary, (2) determine if PDE3 inhibitors prevent oocyte maturation, but not ovulation and function of the corpus luteum in rhesus monkeys undergoing controlled ovarian stimulation (COS) protocols or during natural cycles in vivo, and 3) determine whether PDE3 inhibitors function as contraceptive agents in regularly cycling rhesus monkeys in paired mating situations.

该子项目是利用该技术的众多研究子项目之一 资源由 NIH/NCRR 资助的中心拨款提供。子项目和 研究者 (PI) 可能已从 NIH 的另一个来源获得主要资金， 因此可以在其他 CRISP 条目中表示。列出的机构是 对于中心来说，它不一定是研究者的机构。 避孕可以减少意外怀孕、流产和意外分娩，从而提供显着的预防性健康益处。由于副作用、获取途径以及文化或道德反对限制了当前方法的普遍接受，因此有必要研究新型避孕药具。该项目的目的是探索以下假设：灵长类动物卵巢中存在磷酸二酯酶（PDE）同工型的选择性表达，可以利用选择性阻断 PDE3 同工型来阻止自发性和促性腺激素诱导的卵母细胞成熟，以及使用 PDE3 抑制剂的长期治疗可以预防灵长类动物怀孕而不影响月经 周期性或黄体功能。 具体目标是：(1) 描述灵长类动物卵巢中 PDE 表达的基本生物学，(2) 确定 PDE3 抑制剂是否会阻止卵母细胞成熟，但不会阻止接受受控卵巢刺激 (COS) 方案或体内自然周期的恒河猴的排卵和黄体功能，以及 3) 确定 PDE3 抑制剂是否可作为避孕药发挥作用。 定期让恒河猴进行配对交配。