Search Results - "John K. H. Lu"

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    Estradiol Stimulates Progesterone Synthesis in Hypothalamic Astrocyte Cultures by Micevych, Paul E, Chaban, Victor, Ogi, Julie, Dewing, Phoebe, Lu, John K. H, Sinchak, Kevin

    Published in Endocrinology (Philadelphia) (01-02-2007)
    “…The brain synthesizes steroids de novo, especially progesterone. Recently estradiol has been shown to stimulate progesterone synthesis in the hypothalamus and…”
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    The Type I BMP Receptor BmprIB is Essential for Female Reproductive Function by Yi, Soyun E., LaPolt, Philip S., Yoon, Byeong S., Jean Y.-C. Chen, John K. H. Lu, Lyons, Karen M.

    “…Maintenance of female reproductive competence depends on the actions of several hormones and signaling factors. Recent reports suggest roles for bone…”
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    Temporal Changes Occur in the Neuroendocrine Control of Gonadotropin Secretion in Aging Female Rats: Role of Progesterone by TSAI, Houng-Wei, LAPOLT, Philip S, OLCOTT, Angelica P, LU, John K. H

    Published in Biology of reproduction (01-09-2004)
    “…The present study examined the gonadotropin surge-inducing actions of estradiol (E 2 ), both alone and with progesterone (P 4 ), in middle-aged, early…”
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    The luteinizing hormone surge is preceded by an estrogen-induced increase of hypothalamic progesterone in ovariectomized and adrenalectomized rats by Micevych, Paul, Sinchak, Kevin, Mills, Richard H, Tao, Leslie, LaPolt, Philip, Lu, John K H

    Published in Neuroendocrinology (01-07-2003)
    “…As circulating estrogen levels rise on the afternoon of proestrus, they stimulate the hypothalamo-pituitary axis. This estrogen positive feedback is pivotal to…”
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    Site-specific decrease of progesterone receptor mRNA expression in the hypothalamus of middle-aged persistently estrus rats by Mills, Richard H, Romeo, Horacio E, Lu, John K.H, Micevych, Paul E

    Published in Brain research (15-11-2002)
    “…Middle-aged females gradually become acyclic and spontaneously develop a persistently estrus (PE) state. PE rats, acyclic for 30 days (early PE), are…”
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    Steroid secretion in polycystic ovarian disease after ovarian suppression by a long-acting gonadotropin-releasing hormone agonist by Chang, R J, Laufer, L R, Meldrum, D R, DeFazio, J, Lu, J K, Vale, W W, Rivier, J E, Judd, H L

    “…The principal glandular source of increased serum androgens in polycystic ovarian disease (PCO) is controversial), since complete separation of ovarian from…”
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    Estrogen induces de novo progesterone synthesis in astrocytes by Sinchak, Kevin, Mills, Richard H, Tao, Leslie, LaPolt, Philip, Lu, John K H, Micevych, Paul

    Published in Developmental neuroscience (01-09-2003)
    “…The brain is an established target for peripheral steroids, but also expresses steroidogenic enzymes and is capable of de novo 'sex' steroid synthesis…”
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    Clinical and hormonal effects of chronic gonadotropin-releasing hormone agonist treatment in polycystic ovarian disease by Steingold, K, De Ziegler, D, Cedars, M, Meldrum, D R, Lu, J K, Judd, H L, Chang, R J

    “…Previously, we reported that short term administration of a highly potent GnRH agonist (GnRHa) for 1 month to patients with polycystic ovarian disease (PCO)…”
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    Relation of circulating estradiol and progesterone to gonadotropin secretion and estrous cyclicity in aging female rats by Lu, J K, LaPolt, P S, Nass, T E, Matt, D W, Judd, H L

    Published in Endocrinology (Philadelphia) (01-05-1985)
    “…The progressive cessation of regular ovulatory function in aging female rats is preceded by a significant decrease in the magnitude of the proestrous LH surge…”
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    Temporal Changes Occur in the Neuroendocrine Control of Gonadotropin Secretion in Aging Female Rats: Role of Progesterone1 by Tsai, Houng-Wei, LaPolt, Philip S, Olcott, Angelica P, Lu, John K. H

    Published in Biology of reproduction (01-09-2004)
    “…The present study examined the gonadotropin surge-inducing actions of estradiol (E2), both alone and with progesterone (P4), in middle-aged, early…”
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    Journal Article
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    Influences of Age and Ovarian Follicular Reserve on Estrous Cycle Patterns, Ovulation, and Hormone Secretion in the Long-Evans Rat1 by Anzalone, Christopher R, Hong, Long-Sheng, Lu, John K. H, LaPolt, Philip S

    Published in Biology of reproduction (01-04-2001)
    “…This study examined the influences of aging and reduced ovarian follicular reserve on estrous cyclicity, estradiol (E2) production, and gonadotropin secretion…”
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    Influences of age and reproductive status on ovarian ovulatory responsiveness to gonadotropin stimulation by Anzalone, C R, Lu, J K, LaPolt, P S

    “…Reproductive aging in the female rat is associated with the gradual loss of regular ovulatory function, decreased fertility, and smaller litter sizes. In the…”
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    Influences of Age and Ovarian Follicular Reserve on Estrous Cycle Patterns, Ovulation, and Hormone Secretion in the Long-Evans Rat by ANZALONE, Christopher R, HONG, Long-Sheng, LU, John K. H, LAPOLT, Philip S

    Published in Biology of reproduction (01-04-2001)
    “…This study examined the influences of aging and reduced ovarian follicular reserve on estrous cyclicity, estradiol (E 2 ) production, and gonadotropin…”
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    Journal Article
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