Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0600142 (hot flushes)
 1,242 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Examinations of 19 patients aged 49 to 55, suffering from climacteric disorders of sympathoadrenal nature, have revealed during 42 hot flushes an activation of the sympathoadrenal section of the autonomic nervous system (increased arterial pressure, heart and respiration rates, and skin galvanic reflex), as well as activation of peripheral vasodilatation, elevated skin temperature, and increased concentrations of LH, ACTH, thyrotropic hormone (TTH), cortisol, aldosterone, and testosterone. These data suggest that the trigger mechanism of a hot flush in the patients with the climacteric syndrome represents modified (due to changes in the external or internal conditions) activity of the LH releasing factor-secreting neuron structures and of the central temperature-sensitive neurons. Activation of the sympathoadrenal section of the autonomic nervous system and of the hypothalamo-hypophyseo-adrenocortical system is explained by their important role in the adaptive reactions of the body. Increase of the TTH level results from increased activity of the thyrotropin releasing factor, contributing to the central mechanisms of thermoregulation.
 ...
PMID:[Pathogenetic mechanisms of the development of "hot flushes" in patients with climacteric disorders of the sympathetic-adrenal type]. 261 52

We administered ovine corticotropin-releasing factor (CRF) as a bolus intravenous injection (1 microgram/kg) at 09.00 and at 20.00 to assess the influence of circadian changes in the hypothalamic-pituitary-adrenal axis on the response to CRF. The increase in plasma ACTH levels after CRF was only slightly lower in the morning than in the evening. The plasma cortisol response to ACTH, however, was significantly greater in the evening than in the morning (p less than 0.005). At both times of day CRF administration had no effect on plasma concentrations of GH, PRL, LH, AVP, insulin, PRA or glucose. No effects were observed on the hematopoietic system, kidneys or liver. In addition, CRF had no effect on heart rate, blood pressure or respiratory rate at the dose employed. Approximately 10% of the subjects complained of a transient upper body and facial hot flush. These observations indicate that the magnitude of the plasma cortisol rise after CRF depends on the time of administration.
 ...
PMID:Ovine corticotropin-releasing factor administration in normal men. Pituitary and adrenal responses in the morning and evening. 298 99