CONTROL OF GONADOTROPIN SECRETION DURING LACTATION

哺乳期间促性腺激素分泌的控制

基本信息

  • 批准号:
    7715863
  • 负责人:
  • 金额:
    $ 5.55万
  • 依托单位:
  • 依托单位国家:
    美国
  • 项目类别:
  • 财政年份:
    2008
  • 资助国家:
    美国
  • 起止时间:
    2008-05-01 至 2009-04-30
  • 项目状态:
    已结题

项目摘要

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. Lactation is characterized by an inhibition of reproductive cyclicity due to a suppression of gonadotropin releasing hormone (GnRH), excessive hyperphagia and negative energy balance due to milk production. The central hypothesis of this proposal is that suppression of GnRH/LH secretion is due to suckling-induced alterations in hypothalamic neural systems that regulate food intake and energy balance. Our studies have recently established that several hypothalamic neuropeptide orexigenic systems involved in regulating food intake/energy balance (NPY, orexin, melanin concentrating hormone) make direct connections with GnRH neurons, thus providing a neuroanatomical framework by which signals denoting changes in food intake/energy balance can be directly transmitted to GnRH neurons. We have also found changes in a number of substances that reflect the negative energy balance (suppressed leptin, insulin) and are likely to be involved in the chronic hyperphagia during lactation, a condition similar to obesity. Current studies are using hypothalamic explants and electrophysiology to determine if NPY, orexin or melanin concentrating hormone have direct inhibitory effects on GnRH neurons. Studies are also restoring leptin and insulin to postlactation levels and determining the effects on hypothalamic neuropeptide feeding systems and on restoration of GnRH/LH secretion. The interaction between reproductive function and energy balance during lactation provides a physiological model for studying a number of conditions in women (undernutrition, anorexia nervosa, bulimia and exercise-induced amenorrhea) that involve a suppression of reproductive function associated with changes in energy balance. The results of the studies in the rat formed the basis of a new funded project to study control of food intake in the rhesus monkey.
这个子项目是众多研究子项目之一

项目成果

期刊论文数量(0)
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M. SUSAN SMITH其他文献

M. SUSAN SMITH的其他文献

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{{ truncateString('M. SUSAN SMITH', 18)}}的其他基金

CONTROL OF GONADOTROPIN SECRETION DURING LACTATION
哺乳期间促性腺激素分泌的控制
  • 批准号:
    8357727
  • 财政年份:
    2011
  • 资助金额:
    $ 5.55万
  • 项目类别:
CONTROL OF GONADOTROPIN SECRETION DURING LACTATION
哺乳期间促性腺激素分泌的控制
  • 批准号:
    8357875
  • 财政年份:
    2011
  • 资助金额:
    $ 5.55万
  • 项目类别:
CONTROL OF GONADOTROPIN SECRETION DURING LACTATION
哺乳期间促性腺激素分泌的控制
  • 批准号:
    8173173
  • 财政年份:
    2010
  • 资助金额:
    $ 5.55万
  • 项目类别:
Control of Gonadotropin Secretion during Lactation
哺乳期促性腺激素分泌的控制
  • 批准号:
    7931157
  • 财政年份:
    2009
  • 资助金额:
    $ 5.55万
  • 项目类别:
CONTROL OF GONADOTROPIN SECRETION DURING LACTATION
哺乳期间促性腺激素分泌的控制
  • 批准号:
    7958401
  • 财政年份:
    2009
  • 资助金额:
    $ 5.55万
  • 项目类别:
SUPPORT FOR NATIONAL PRIMATE RESEARCH CENTER
支持国家灵长类研究中心
  • 批准号:
    7716481
  • 财政年份:
    2008
  • 资助金额:
    $ 5.55万
  • 项目类别:
AIDS-related Animal Services Building Cage Washing Facility
艾滋病相关动物服务大楼笼子清洗设施
  • 批准号:
    7242165
  • 财政年份:
    2007
  • 资助金额:
    $ 5.55万
  • 项目类别:
CONTROL OF GONADOTROPIN SECRETION DURING LACTATION
哺乳期间促性腺激素分泌的控制
  • 批准号:
    7561855
  • 财政年份:
    2007
  • 资助金额:
    $ 5.55万
  • 项目类别:
Nonhuman Primate Primary Housing Units for Animal Services Building 3
动物服务非人类灵长类动物主要住房单元 3 号楼
  • 批准号:
    7073042
  • 财政年份:
    2006
  • 资助金额:
    $ 5.55万
  • 项目类别:
EQUIPMENT, ALTERATIONS AND RENOVATIONS
设备、改造和翻新
  • 批准号:
    7348966
  • 财政年份:
    2006
  • 资助金额:
    $ 5.55万
  • 项目类别:

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