Ukukhulelwa kanye nentuthuko elandelayo yokukhulelwa kungenzeka kuphela lapho kungekho ukuphazamiseka kwe-hormone emzimbeni wesifazane. I-hormone - izinto eziphilayo ezisebenzayo - ezibhekene nenqubo yokuvuthwa kwamaqanda futhi zidale izimo ezihle zokutshala, zibandakanye ekulungiseleleni ukubeletha nokuncelisa. Ithonya elikhulu ekukhuleni kokukhulelwa futhi ukukhulelwa ngokwayo kune prolactin.
I-prolactin - evamile ekukhulelwe
Kuyaziwa ukuthi ngesikhathi sokukhulelwa izinga le prolactin landa, lesi simo sibhekwa njengesijwayelekile futhi ngenxa yesenzo esiyinhloko se-hormone. Inethonya elikhulu kakhulu kule nkathi ye prolactin inezinhlayiya ezincelisayo, kancane kancane uzilungiselela ukukhiqizwa kwamabalabala nobisi. Ngaphansi kwethonya laso, isakhiwo nobukhulu besifuba sishintsha - izicubu ezinamafutha zifakwa esikhundleni se-secretory eyodwa. Lezi zinguquko ezakhiwe ngokugcwele zifaka isandla ekuqaliseni ukubeletha okulandelayo.
Ukugxila kwe-prolactin ekukhulelweni kuyadingeka nengane, njengoba ingena emzimbeni wayo, i-hormone ikhuthaza ukuthuthukiswa kwamapayipi. Ukuze uqondile, iqhaza ekubunjweni komuntu osebenza nge-surfactant - into ekhethekile ehlanganisa ubuso obuphakathi kwamapayipi futhi ilungiselela isimiso sepayipi somsebenzi obalulekile.
Ukwengeza, impahla yakamuva ye-prolactin evezwe kamuva-kubalulekile ukuhlinzeka ngomphumela we-analgesic.
Njengomthetho, izinga leprolactin ekukhulelweni alinqunyiwe, ngoba izinkomba zalo zigqamile ngokweqile kumkhuba ongowesifazane ongakhulelwe, futhi lokhu kubhekwa njengesimo esidingekayo ekuthuthukiseni ukukhulelwa.
I-prolactin ithinta kanjani ukukhulelwa?
Lapho uhlela ukukhulelwa, ikakhulukazi uma kunezinkinga zokukhulelwe, odokotela batusa ukuhlaziya i-prolactin. Noma yikuphi okungajwayelekile, okungukuthi, izinga eliphansi noma eliphakeme le-prolactin, alikwazi ukufakazela kuphela ukuthi kunezinqubo zokugulisa umzimba emzimbeni wesifazane, kodwa futhi kaningi ukwenza inqubo yokukhulelwa ayinakwenzeka. Isibonelo, i-prolactin yanda kwenzeka ngenxa yezifo ezinjenge-tumor british, i-polycystic ovary, ukwehluleka kwezintuthwane, i-cirrhosis, nabanye.
Ezimweni eziningi, abesifazane abanezimo eziphakeme kakhulu ze-hormone yizinsalela zokuya esikhathini, ukukhuluphala ngokweqile, ukuvinjelwa kwegciwane, ukuphuza, futhi, ngokubaluleka, uma kuhlela, lokhu kungabikho kokuvutha. Uma usakhulelwa, khona-ke i-prolactin eyandayo ekuthuthukiseni kwayo akuyona isongo. Okusho ukuthi umbono wamanje owaphakamisa i-prolactin waba imbangela yokukhulelwa okuqhubekayo akunangqondo futhi ayikho isiqiniseko sesayensi.