Prolactin mwa amuna

Prolactin ndi mahomoni omwe amagwiritsidwa ntchito popanga njira zowonongeka kwa amayi pa nthawi yomwe ali ndi pakati komanso pamene akuyamwitsa. Zimakhulupirira kuti hormone iyi imakhala yokhayokha mu thupi lachikazi, koma mu thupi lamunthu likupezekapo. Amuna amathandiza kuti mapangidwe ndi chitukuko cha spermatozoa, komanso testosterone apangidwe.

Kodi prolactin ndi chiyani?

Prolactin ndi hormone ya polypeptide yomwe imatulutsa zotsatirazi:

• Maselo a Lactotropic a lobe anterior of the planditary gland;
• Mphindi wambiri wa placenta;
• Mphungu ya chiberekero (endometrium).

Ntchito yaikulu ya prolactin ndi kukula ndi chitukuko cha m'mawere, komanso kulimbitsa kwakukulu kwa lactation. Asayansi amasonyeza kuti prolactin imayambitsa mahomoni, chifukwa chakuti kuwonjezeka kwapanikizika, kukhumudwa kwa maganizo, kutopa kapena zotsatira za zinthu zina zosautsa kunja, zomwe zili mu thupi la munthu zimakula.

Ngakhale kuti pakalipano prolactin imatanthawuza mahomoni osaphunzira (palibe deta yokhudzana ndi kutenga nawo mbali mu njira zina zamagetsi), zina zambiri zokhudza izo zawonjezeka pa nthawi yonse yafukufuku. Maphunzirowa samakhudza chabe ntchito ya prolactin monga njira yowonongeka ya chiberekero mwa amayi, inakhudzanso kutenga nawo mbali kwa polypeptideyi mu njira zamagetsi zomwe zimakhala za thupi lokha. Njirazi zimaphatikizapo, mwachitsanzo, kuti prolactin mwa amuna imakhudza kupanga zachibadwa zokhala ndi spermatozoa. Pazinthu za ubongo, amuna amafunikira prolactin.

Musaganize kuti mu thupi lachimuna ntchito za hormoni iyi ndi zofanana ndi thupi lake lachiwerewere mu thupi lachikazi. Malingaliro amenewo angakhale olakwika. Physiologically, prolactin mwa amuna, monga mwa akazi, amapangidwa mu lobe yamkati ya chigoba cha pituitary. Kuonjezerapo, pambaliyi palinso mbali ina ya ubongo wa munthu - hypothalamus. Pafupifupi ziwalo zonse ndi ziwalo za thupi la munthu zili ndi mamolekyu a prolactin, komanso mapuloteni omwe amachititsa mahomoniwa. Komabe, sayansi sinazidziwe zambiri zokhudza ntchito ya prolactin komanso mbali yomwe ikuchitika mu ziwalo izi.

Prolactin mwa amuna ndi akazi: kusiyana

Popeza kuti mahomoni ndi chikhalidwe cha ziwalo zogonana za abambo ndi amai pali kusiyana kwakukulu, pakadali pano, gawo la prolactin lidzakhala losiyana. Makamaka, kusiyana kudzadziwonetsera okha ndi matenda, matenda, ndi zina zotero. Mwachitsanzo, chizindikiro chokhala ndi mimba mwa amayi poyesedwa chidzakhala kukhalapo kwa prolactin, chifukwa pa sabata lachisanu ndi chitatu la mimba chiwerengero chake chidzawonjezeka kwambiri.

Momwe zinthu zimakhalire, mahomoni otchedwa prolactin amuna amachulukitsa msinkhu wa testosterone, ndipo m'madera ngati prolactinemia, omwe amayamba chifukwa cha kusungunuka kwa homoni ya luteinizing, kupanga testosterone ndi maselo enaake a Leydig amachepetsedwa. Mapangidwe a androgens a adrenal glands (omwe ndi kansalu yamatope) amadalira molingana ndi kuchuluka kwa prolactin.

Prolactin ikuwonjezeka: zifukwa

Kuwonjezeka kwa ma prolactin m'mabambo amasonyeza matenda osiyanasiyana, ndipo ali ndi zizindikiro zina zamatenda. Matendawa akuphatikizapo zotupa zosiyanasiyana za ntchentche. Matenda achizindikiro mwa amuna ndi akazi ndi osiyana. Kwa amuna, kuchuluka kwa ma hormone kumayambitsa kupanda mphamvu, kufalikira ndi kuchepa kwa makoswe, ndi akazi - zimayambitsa kusasamba kwa msambo, mpaka ku infertility. Chithunzi choterechi chingakhale ndi pamene chotupacho chimakhudza zokhazokha zogonana. Mwachitsanzo, mwa amayi ndi ovary polycystic, ndipo mwa amuna, motero - prostate adenoma.