IMelatonin ｜73-31-4

Ukusetyenziswa: isetyenziselwa amayeza kunye neemveliso zokhathalelo lwempilo, inokuphucula ukusebenza komzimba womntu, ukukhusela ukuguga nokubuyisela ulutsha, kwaye "yipilisi yokulala" yendalo.

I-Melatonin (ekwabizwa ngokuba yi-melatonin, i-melakonin, i-melatonin, i-hormone ye-pineal) yi-hormone ye-amine eveliswa yi-pineal gland yezilwanyana ezanyisayo kunye nabantu, enokwenza iseli evelisa i-melanin ikhanye, kungoko igama elithi melatonin.

Ihomoni yepineal, ekwabizwa ngokuba yi-melatonin, yihomoni ekhutshwa ziiseli zepineal. Ubume bayo beekhemikhali yi-5-methoxy-N-acetyltryptamine. Umsebenzi wayo we-physiological kukuthintela i-gonad, i-thyroid, i-adrenal gland, i-parathyroid gland kunye nemisebenzi ye-pituitary gland, inqanda ukukhulelwa komntwana kunye nokunciphisa i-pituitary melanotropin secretion.

Kwaye inomsebenzi wenkqubo ye-nervous central, inokunyusa umda wokuxhuzula, ibangele ukozela njalo njalo.

Xa i-pineal gland isusiwe, izilwanyana zovavanyo zabonisa i-hyperplasia kunye nokunyuka kwesisindo sazo zonke izigulana ezikhankanywe ngasentla, ngakumbi i-gonads yangaphambi kwexesha kunye nezitho zesini zamagundane angekavuthwa, ukwanda kwe-LH kunye ne-FSH kwi-pituitary gland, kunye nokunyuka kwe-secretion ye-thyroid kunye ne-adrenal. iihomoni ze-cortical.

I-pineal element inokunciphisa i-pituitary MSH kwaye ibe mhlophe ulusu.

Isebenza kwinkqubo ye-nervous central, ebonisa isigqi esicothayo, inyusa umda wokuxhuzula kunye nokutyhafa kwi-electroencephalogram yomntu, kodwa ayichaphazeli indlela yokuziphatha kunye nobuntu babo. Inokunciphisa utshintsho lwe-electroencephalogram yokuphazamiseka kwemithambo-luvo kubantu abanesifo sokuwa kwethutyana kunye nesifo sikaParkinson.