Nouvelles - Santé

Apple acquiert la start-up asthmatique Tueo <b>Health</b>

vendredi 24 mai 2019

Apple a fait l'acquisition de Tueo Health, une petite entreprise en démarrage qui développe un système permettant aux parents de surveiller les ...

Apple rachète Tueo <b>Health</b>, une start-up dédiée au suivi de l&#39;asthme

vendredi 24 mai 2019

Apple continue de s'intéresser sérieusement au monde de la santé. Le fabricant a racheté Tueo Health, une start-up qui développait un système pour ...

Apple a acheté Tueo <b>Health</b>, qui développait une app de suivi de l&#39;asthme

vendredi 24 mai 2019

Tueo Health, jeune pousse qui développait une application de surveillance des symptômes de l'asthme, fait désormais partie de l'aréopage de ...

Gilbert Renaud Wednesday May 22nd 2019

vendredi 24 mai 2019

who passed away peacefully surrounded by his loving family on Wednesday, May, 22d, 2019 at Health Sciences North at the age of 88. Dear son of ...

Les femmes sont moins diagnostiquées pour un AVC mineur que les hommes

vendredi 24 mai 2019

... Dre Amy Yu, MD, co-autrice de l'étude et neurologue spécialisée dans les AVC au Sunnybrook Health Sciences Centre de l'université de Toronto.


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Articles médicaux

Androgen effects on neurosteroids and endogenous opioids - Abstract

oct. 14 2007

A.R. Genazzani, N. Pluchino - Department of Reproductive Medicine and Child Development
Division of Obstetrics and Gynecology, University of Pisa

Androgen arriving from the gonads via the circulation modulate brain function, affecting gender differentiation and sexually differentiated behavioral responses, but also the ability of the brain to process, store and retrieve sensory information. Gonadal steroids are being increasingly recognized as important factors influencing the endogenous opioid system and the neurosteroids milieu in both sexes, underlining the presence of additional hormone-related neurobiological mechanisms for gender differences of brain function. Beta-endorphin is the endogenous opiate that has received the most research attention: behavioral, analgesic, thermoregulatory and neuroendocrine properties of this peptide have been widely described and a role in the central drive of sexuality it has been recently evaluated. Furthermore, brain and plasma concentrations of neurosteroids have been found to modulate both behavioral and biochemical responses to acute and chronic stress, anxiety, depression, anaesthesia, sleep, memory and pain. These observations have suggested that the fluctuations of neurosteroids and modification of the beta-endorphin system could be involved in the development, course and prognosis of some mental disorders like depression, premenstrual dysphoria, anorexia and bulimia nervosa and Alzheimer’s disease. Though a large attention has been given to the study of estrogens role, relative attention and awareness has been focused on the activity of endogenous or exogenous androgens. Delta-5 and delta-4 androgens affect directly the endogenous beta-endorphin system and the neurosteroids milieu showing also a gender-related response. The present data, suggest additional clues in the neurobiology of gonadal steroids.