I-hormone prolactin

I-hormone yeprolactin yenziwa kwi-pituitary gland. I-synthesis ye-hormone ye-lactation iyenzeka ngexesha lokulala, ukusondelelana. Elinye igama elithi "i-hormone yokucindezeleka" i-prolactin yayingenxa yokunyuka kwamanqanaba ngexesha lokuxhatshazwa kweemvakalelo kunye nemizimba. Oko kukuthi, i-hyperprolactinemia yangaphantsi idlalwa rhoqo kwiimeko ezixinzelelekileyo zomzimba.

Kwindoda eqhelekileyo, i-hormone prolactin iyahluka kwiintsuku ezahlukileyo kumjikelezo wesini kunye nemigangatho esuka kwi-4.5 ng / ml ukuya kwi-49 ng / ml. Kwaye ixabiso elikhulu kakhulu kwinqanaba liyabonwa ngexesha lesigxina somjikelezo. Ngexesha lokukhulelwa, isiqhelo siya kuba yinqanaba eliphakamileyo, kwaye kwi-trimester yesithathu linokufikelela kuma-300 ng / ml. Kuba ngamadoda, amanqanaba eprolactin avela kwi-2.5 ukuya kwi-17 ng / ml. Njengoko uyakubona, isibonakaliso sichaphazelekile ukuguquka kunokuba ngumzimba wesetyhini.

Imisebenzi yeprolactin

Khawuqwalasele oko i-hormone prolactin ejongene nayo kunye nemisebenzi ethatha ntoni kubameli beesondo ezahlukeneyo. Ukongeza ekusebenzeni kwinkqubo yokuzala, iprolactin inefuthe ekukhuseleni. Ngokukodwa, ngexesha lophuhliso lwe-intrauterine lomntwana, ukwanda kweprolactin kukukhusela kwimiphumo yamasosha omzimba omama. Iimpembelelo eziphambili zehomoni kubasetyhini ziboniswe ngezantsi:

1. Impembelelo kwiimfesane ezimfutshane. Ngaphantsi kwefuthe le-hormone, ukukhula kweentlanzi zamathambo kuyakhuthazwa, kunye nokulungiswa kwazo kwe- lactation . Kwaye ithatha inxaxheba ekuvuseleleni nasekumiseni ukwenziwa kobisi ngexesha lokuncelisa umntwana.
2. Enye yemisebenzi ebalulekileyo kukuba kugcinwe ubukho bomzimba ophuzi kwi-ovary. Ngaloo ndlela, inqanaba eliphezulu leprogesterone eliyimfuneko yokubeletha ngokuqhelekileyo lugcinwa.
3. Impembelelo yeprolactin ekubunjweni "kwintsimi yesisu" kunye nokuphendula okuhambisana nokuziphatha kwaphawulwa.
4. Ilawula umsebenzi weengqungquthela ze-adrenal (prolactin ikhuthaza ukuveliswa kwe-androgens).

Kwamadoda, i-hormone prolactin i-pituitary inefuthe elilandelayo emzimbeni:

1. Ngenxa yobudlelwane obusondeleyo kunye ne-LH ne-FSH, i-hormone prolactin inokubangela ukuba kwenziwe amanye amahomoni alawula umsebenzi wesini. Kubandakanya ukulawula ukwakheka kwe testosterone.
2. Uthatha inxaxheba kwimimiselo ye-spermatogenesis.
3. Ikhuthaza ukugcinwa kwe-prostate gland.

Ngaloo ndlela, kuyacaca ukuba i-hormone prolactin ibonisa isimo senkqubo yokuzala yowesifazane kunye nendoda.

Iimpawu zokunyuka kweprolactin

I-hormone prolactin eyongeziweyo ibangela izifo ezinzima kakhulu zokusebenza, kokubhinqa namadoda.

1. Kwizigaba zokuqala zesi sifo kubonakala ngokunciphisa umnqweno wesini, apho ukuqhubela phambili kwe-hyperprolactinemia kubangela ukungasebenzi komntwana.
2. Abafazi bane-anorgasmia kunye neengxaki zomjikelezo wesini. Ukuya esikhathini esiqhekezayo kuza kuqala. Xa uvavanyo lubonisa ukungabikho kwe-ovulation. Oku kungenxa yobudlelwane obusondeleyo phakathi kwama-hormone wesini kunye neprolactin, ekubeni izinga eliphezulu leprolactin linciphisa ukuveliswa kwe- LH ne-FSH . Kwaye oku kubangelwa ukungabikho komntwana.
3. Kukho ukukhutshwa kwiintlanzi zamathambo.
4. Kwamadoda, ukuphulwa komsebenzi wesondo kunye nenqanaba elongezelelweyo leprolactin kubonakaliswe ngukungasebenzi kwemisebenzi erectile.
5. Kwakhona, ukulala ngesondo angeke kuhambisane no-ejaculation kunye ne-orgasm. Xa uhlalutya i-spermogram, i-spermatozoa encinci ifunyenwe, ibonakaliswe ngokunciphisa ukuhamba kwabo kunye nobukho beziphene ezahlukeneyo kwisakhiwo.
6. Ukwandiswa kweprolactin kukukhuthaza ukwanda kweengcambu zamathambo kumadoda. Le meko ibizwa ngokuba yi-gynecomastia.