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Impact hormonal du d-aspartate

MessagePosté: 26/07/2014 23h11
par audiomaniac
Aux vues du large spectre d’effets sur le système endocrinien, on comprends pourquoi certains ont vite regretté d’avoir joué avec le d-aspartate Current knowledge of d-aspartate in glandular tissues Maria Maddalena Di Fiore Amino Acids August 2014, Volume 46, Issue 8, pp 1805-1818 Free d-aspartate (d-Asp) occurs in substantial amounts in glandular tissues. This paper reviews the existing work on d-Asp in vertebrate exocrine and endocrine glands, with emphasis on functional roles. Endogenous d-Asp was detected in salivary glands. High d-Asp levels in the parotid gland during development suggest an involvement of the amino acid in the regulation of early developmental phases and/or differentiation processes. d-Asp has a prominent role in the Harderian gland, where it elicits exocrine secretion through activation of the ERK1/2 pathway. Interestingly, the increase in NOS activity associated with d-Asp administration in the Harderian gland suggests a potential capability of d-Asp to induce vasodilatation. In mammals, an increase in local concentrations of d-Asp facilitates the secretion of anterior pituitary hormones, i.e., PRL, LH and GH, whereas it inhibits the secretion of POMC/α-MSH from the intermediate pituitary and of oxytocin from the posterior pituitary. d-Asp also acts as a negative regulator for melatonin synthesis in the pineal gland. Further, d-Asp can stereo-specifically modulate the production of sex steroids, thus taking part in the endocrine control of reproductive activity. Although d-Asp receptors remain to be characterized, gene expression of NR1 and NR2 subunits of NMDAr responds to d-Asp in the testis.

Re: Impact hormonal du d-aspartate

MessagePosté: 18/08/2014 02h25
par HyperPhysique
oui j'ai vu ça sur le site de M.Gundill, c'est vrai que ça fait peur, enfin surtout la mélatonine