Chikamu chekupedzisira chekuenda kumwedzi, iyo luteal chikamu chinotora chinzvimbo chakakosha mukubereka kwevakadzi nekubvumira, muchiitiko chekusangana, kuiswa kweza nekuchengetedza nhumbu. Zviri Kufamba sei? Inofanira kutsigirwa rini? Zvimwe zvinhu zvekutsanangurwa.

Iyo yekuenda kumwedzi yakakamurwa muzvikamu zvinoverengeka, zvakakosha kugadzirwa kweiyo oocyte uye kuchengetedza kwepamuviri mushure mekudyara:

• chikamu che follicular inotora mazuva gumi nemana kubva pazuva rekutanga rako rekupedzisira. Pakati peichi chikamu, maoocyte akati wandei akafukidzwa muovarian follicle yavo, sero rakafanana nesaga diki, rinotanga kukura pasi pesimba rehosha yepituitary (FSH). Mumwe chete wavo ndiye achadzingwa.
• l'ovulation: Pakati pemaawa makumi maviri nemana kusvika makumi mana nemasere, iyo inoratidza pakati peiyo ovari kutenderera, iyo yekuvharira kwe luteinizing hormone (LH) inowedzera zvakanyanya. Basa rayo: kukonzeresa kuputika kweiyo follicle uye kudzingwa kweiyo oocyte yakakura. Izvi zvinonzi ovular kuisa kana ovulation. Mumaawa anotevera ovulation, iyo oocyte inofamba ichienda kune iyo fallopian tube iyo inomirira isati yaiswa urume… kana kuputsa.
• luteal chikamu inoita chikamu chekupedzisira cheovarian kutenderera. Iyi nguva iri pakati peiyo ovulation uye inotevera nguva inotora pakati pegumi nemaviri nemazuva gumi nemana. Pakati pechikamu che luteal uye pasi pemhedzisiro yekumisikidzwa kwehomoni, iyo ovarian follicle inoshandurwa kuita gland inotora zita rayo kubva kune yayo pigmentation: yeyero muviri. Iyi corpus luteum chinhu chakakosha mune tarisiro yekubata nhumbu mune ramangwana. Chokwadi, nekuviga estrogen uye progesterone, inogadzirira iyo lining yechibereko (endometrium) kuti igamuchire zai mune chiitiko chekusangana. Icho chiri chikonzero ichi icho icho chinosimba zvakanyanya mukati meichi chikamu chechipiri cheiyo kutenderera kusvika zuva rechimakumi maviri.

Mushure mekuvhara mazai uye saka panguva yeiyo luteal chikamu, zviitiko zviviri zvinogoneka:

Oocyte inosangana.

 Panyaya iyi, "embryo" inogara mu "endometrium" mazuva masere mushure mekuberekwa. Iko kusimwa. Mahormone akati wandei anobva atamba basa rakakosha.

• iyo hormone HCG, kana chorionic gonadotropin, yakavigwa kuitira kuti iyo corpus luteum ienderere mberi nebasa rayo kwemwedzi mitatu. Iyo hormone iyi "yakavhenekwa" mumuedzo wepamuviri uye inobvumidza iwe kuziva kana iwe ukave nepamuviri.
• estrogen uye progesterone zvakavanzika necorpus luteum kuitira kuchengetedza nhumbu. Uku kugadzirwa kwehormone kunoenderera kwemavhiki mashoma kudzamara placenta yagadzirira kuona kuchinjana kwegesi nemuviri pakati paamai nemwana.

Iyo oocyte haina kusangana.

 Kana pakange pasina kusangana, iyo oocyte haina dendere mu endometrium uye iyo corpus luteum haichaburitse progesterone. Nehormone desimpregnation, iyo diki midziyo yeendometrium inodzvinyirira uye mucous membrane inotsemuka ichikonzera kubuda kweropa. Iyi ndiyo mitemo. Chikamu che follicular chinotanga zvakare.

Chiratidzo chinonyanya kuratidza chechikamu che luteal kuwedzera kwetembiricha yemuviri. Izvi zvinodaro nekuti kugadzirwa kweprogesterone nekombus luteum kunokonzeresa kuti muviri udziirwe ne0,5 ° C. Mushure mekudonha kwetembiricha panguva yeovulation (inguva "inopisa" yekutenderera), tembiricha yemuviri inosara dzakakomberedza 37,5 ° C (paavhareji) mukati meichi chikamu chekupedzisira cheiyo kutenderera. kuenda kumwedzi.

Chimwe chinoshamisira hunhu hwechikamu che luteal: shanduko yekuda kudya. Chokwadi, kugadzirwa kwehormone kune, zvinoenderana nezvimwe ongororo, zvine chekuita nekoriori inodyiwa panguva yekutenderera. Yakaderera panguva yeiyo follicular chikamu, yaizowedzera zvakanyanya muchikamu che pre-ovulatory uye mune yekupedzisira luteal chikamu. Mubvunzo: kuiswa mu progesterone uye estrogen, izvo zvinogona kureva kudzikira mukugadzirwa kweserotonin (iyo mahormoni emafaro) uye nekudaro chiitiko che "muripo wezvekudya" uko vakadzi vaizofarira macarbohydrate, calcium uye magnesium.

Chikamu che luteal ndicho chinongedzo chekucherechedzwa kwakakosha kune vakadzi vane dambudziko rekutora nhumbu kana vakatambura nhumbu dzakadzokororwa. Yekutanga-mutsara mhinduro ndeyekuzoita kubereka kwekutarisa uye kuona chinogoneka ovulation kusagadzikana, kunyanya nekutarisa tembiricha makombora uye / kana kuita mahormone assays uye pelvic ultrasound.

 Kana kusabereka kuchifungidzirwa, kukurudzira mazai kunogona mune dzimwe nguva kukurudzirwa. Izvo zviri mukati mehurongwa hweaya matekinoroji ekubatsira kuberekesa (uye kunyanya IVF uye IVF ICSII) kuti rutsigiro rwechikamu che luteal runosarudza. Chokwadi, nekukurudzira mazai kuti awane mazai mazhinji sezvinobvira (pamberi pe vitro fertilization), kukanganisa kwechikamu che luteal kunoitwa. Miviri yeruvara yakawedzeredzwa nekusimudzira haigone kuburitsa progesterone yakakwana, iyo inogona kukanganisa kuiswa kwe "embryo" (s). Naizvozvo, kurapwa kunoiswa kusimudzira kuchengetedza kwemimba. Mamorekuru maviri anobva afarirwa:

• progesterone, kazhinji inotarisirwa kusangana nekutsi kwemukadzi,
• gonadotropin-inosunungura mahormone (GnRH) agonist iyo inokurudzira kugadzirwa kweGnRH, hormone inosimudzira kuvandudzwa kweiyo corpus luteum.