Characterization of the LH Surge in Middle-Aged Female Rats1
نویسندگان
چکیده
منابع مشابه
Alkaptonuria in a middle-aged female
Background: Alkaptonuria (AKU) or ochronosis is a rare progressive degenerative arthropathy that results from deficiency of enzyme homogentisate 1,2 dioxygenase (HGD). The features include arthritis of the spine and in larger peripheral joints, with chondrocalcinosis. In this paper, we present a case of alkaptonuria in a 54 year old woman in Tehran, Iran. Case Presentation: A 54 year old woman ...
متن کاملIntracerebroventricular Infusion of Vasoactive Intestinal Peptide Rescues the Luteinizing Hormone Surge in Middle-Aged Female Rats
Reproductive aging is characterized by delayed and attenuated luteinizing hormone (LH) surges apparent in middle-aged rats. The suprachiasmatic nucleus (SCN) contains the circadian clock that is responsible for the timing of diverse neuroendocrine rhythms. Electrophysiological studies suggest vasoactive intestinal peptide (VIP) originating from the SCN excites gonadotropin-releasing hormone (Gn...
متن کاملalkaptonuria in a middle-aged female
background: alkaptonuria (aku) or ochronosis is a rare progressive degenerative arthropathy that results from deficiency of enzyme homogentisate 1,2 dioxygenase (hgd). the features include arthritis of the spine and in larger peripheral joints, with chondrocalcinosis. in this paper, we present a case of alkaptonuria in a 54 year old woman in tehran, iran. case presentation: a 54 year old woman ...
متن کاملAbsent Progesterone Signaling in Kisspeptin Neurons Disrupts the LH Surge and Impairs Fertility in Female Mice.
Kisspeptin, encoded by Kiss1, stimulates GnRH neurons to govern reproduction. In rodents, estrogen-sensitive kisspeptin neurons in the anterior ventral periventricular nucleus and neighboring periventricular nucleus are thought to mediate sex steroid-induced positive feedback induction of the preovulatory LH surge. These kisspeptin neurons coexpress estrogen and progesterone receptors and displ...
متن کاملAlkaptonuria in a middle-aged female.
BACKGROUND Alkaptonuria (AKU) or ochronosis is a rare progressive degenerative arthropathy that results from deficiency of enzyme homogentisate 1,2 dioxygenase (HGD). The features include arthritis of the spine and in larger peripheral joints, with chondrocalcinosis. In this paper, we present a case of alkaptonuria in a 54 year old woman in Tehran, Iran. CASE PRESENTATION A 54 year old woman ...
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ژورنال
عنوان ژورنال: Biology of Reproduction
سال: 1980
ISSN: 0006-3363,1529-7268
DOI: 10.1095/biolreprod23.3.611