Ua ʻike kekahi obstetrician no kāna nānā ʻana a me kāna noiʻi ʻana i nā hāpai he nui e hiki ke hoʻololi i ka meaʻai i ka manawa o ka wahine e loaʻa ai nā māhoe, a ua hoʻoholo ʻia ka manawa holoʻokoʻa e ka hui ʻana o ka meaʻai a me ka hoʻoilina.
Ma ka hoʻohālikelike ʻana i nā māhoe māhoe o nā wahine vegan ʻaʻole i ʻai i nā huahana holoholona me nā wahine e ʻai ana i nā huahana holoholona, ua ʻike ʻo Kauka Gary Steinman, ke kauka limahana ma ka Long Island Jewish Medical Center ma New Hyde Park, New York, ua ʻike nā huahana wahine, ʻoi aku ka waiu. nā huahana, ʻoi aku ka nui o nā māhoe ʻelima. Ua paʻi ʻia ke aʻo ʻana ma ka pukana o Mei 20, 2006 o ka Journal of Reproductive Medicine.
Ua hoʻopuka ka Lancet i ka ʻōlelo a Kauka Steinman e pili ana i ka hopena o ka ʻai ʻana i nā māhoe ma kāna pukana Mei 6.
Hiki i ka mea hewa ke like me ka insulin-like growth factor (IGF), he protein i hūnā ʻia mai ke ake o nā holoholona - me ke kanaka - i ka pane ʻana i ka hormone ulu, kaʻa i loko o ke koko, a komo i ka waiū. Hoʻonui ka IGF i ka naʻau o nā ovaries i ka follicle-stimulating hormone, hoʻonui i ka ovulation. Manaʻo kekahi mau haʻawina e hiki i ka IGF ke kōkua i nā embryos e ola i ka wā mua o ka ulu ʻana. ʻO ka nui o ka IGF i loko o ke koko o nā wahine vegan ma kahi o 13% haʻahaʻa ma mua o nā wahine e ʻai ana i nā huahana waiū.
Ua piʻi nui ka māhoe māhoe ma ʻAmelika mai ka makahiki 1975, e pili ana i ka manawa i hoʻokomo ʻia ai ka ʻenehana reproductive kōkua (ART). ʻO ka hoʻopanee ʻana i ka hāpai ʻana he mea nui hoʻi i ka piʻi ʻana o nā hāpai ʻana he nui, ʻoiai ke piʻi nei ka manawa o ka wahine e loaʻa nā māhoe i ka makahiki me ka ʻole o ka ART.
"ʻO ka piʻi mauʻana o nā māhoe ma 1990, akā naʻe, he hopena paha ia o ka hoʻokomoʻana i ka hormone ulu i loko o nā bipi e hoʻomaikaʻi ai i ka hana," wahi a Kauka Steinman.
Ma ka noiʻi o kēia manawa, i ka manawa i hoʻohālikelike ai ʻo Kauka Steinman i nā māhoe māhoe o nā wahine e ʻai maʻamau, nā mea ʻai meaʻai e ʻai ai i ka waiū, a me nā vegans, ua ʻike ʻo ia e hānau nā vegans i nā māhoe ʻelima mau manawa ma mua o nā wahine ʻaʻole i kāpae i ka waiū mai kā lākou ʻai.
Ma waho aʻe o ka hopena o ka meaʻai ma nā pae IGF, aia kahi loulou genetic i nā ʻano holoholona he nui, me nā kānaka. I loko o nā pipi, ʻo nā ʻāpana o ka genetic code ke kuleana no ka hānau ʻana o nā māhoe kokoke i ka gene IGF. Ua alakaʻi nā mea noiʻi i kahi noiʻi nui o nā wahine ʻApelika-ʻAmelika, keʻokeʻo, a me nā wahine ʻAsia a ʻike ʻia ʻoi aku ka kiʻekiʻe o ka pae IGF i nā wahine ʻAmelika-ʻAmelika a haʻahaʻa loa i nā wahine ʻAsia. Hoʻomaka mua kekahi mau wahine e hana i ka IGF ma mua o nā mea ʻē aʻe. Ma kēia mau helu kanaka, ua like ka pakuhi helu māhoe me ka pakuhi pae FMI. "Ke hōʻike nei kēia haʻawina no ka manawa mua e hoʻoholo ʻia ka loaʻa ʻana o nā māhoe e ka heredity a me ke kaiapuni, a i ʻole, ʻo ke ʻano a me ka meaʻai," wahi a Dr. Steinman. Ua like kēia mau hopena me nā mea i ʻike ʻia e nā mea noiʻi ʻē aʻe i nā bipi, ʻo ia hoʻi: ʻo ka manawa kūpono o ka hānau ʻana i nā māhoe e hoʻopili pololei me ke kiʻekiʻe o ka mea ulu e like me ka insulin i loko o ke koko o ka wahine.
"No ka mea, ʻoi aku ka maʻalahi o nā hāpai ʻana i nā pilikia e like me ka hānau mua ʻana, nā kīnā hānau, a me ke kiʻekiʻe o ka makuahine ma mua o ka hāpai ʻana i hoʻokahi, ua hōʻike nā hopena o kēia noiʻi i nā wahine e noʻonoʻo ana i ka hāpai ʻana e noʻonoʻo e hoʻololi i ka ʻiʻo a me nā huahana waiu me nā kumu protein ʻē aʻe, ʻoi aku ma nā ʻāina. kahi e ʻae ʻia ai nā hormones ulu i nā holoholona, "wahi a Kauka Steinman.
Ke aʻo nei ʻo Kauka Steinman i nā kumu hānau māhoe mai kona lawe ʻana i ʻehā mau māhoe like i ka makahiki 1997 ma Long Island EMC. ʻO kāna noiʻi hou, i paʻi ʻia i kēia mahina ma ka Journal of Reproductive Medicine, ma nā māhoe fraternal, ʻo ia ka hiku o ka moʻo. ʻO nā koena ʻeono, i paʻi ʻia ma ka puke pai hoʻokahi, e nānā i nā māhoe like a i ʻole like. Hōʻike ʻia kahi hōʻuluʻulu o kekahi o nā hopena ma lalo nei.
Noi mua
Uaʻikeʻo Dr. Steinman i nā wāhine hāpai i ka wā e hānai ai, heʻeiwa ka nui o ka hāpaiʻana i nā māhoe ma mua o ka poʻe i hānaiʻole i ka wā o ka hāpaiʻana. Ua hōʻoia pū ʻo ia i nā noiʻi a nā ʻepekema ʻē aʻe e hōʻike ana he ʻoi aku ka maʻamau o nā māhoe like i waena o nā kaikamahine ma mua o nā keikikāne, ʻoi aku hoʻi i waena o nā māhoe conjoined, a ʻoi aku ka nui o nā māhoe like ʻole e hāʻule ma mua o nā māhoe fraternal.
Ua ʻike ʻo Kauka Steinman, me ka hoʻohana ʻana i ka paʻi manamana lima, i ka piʻi ʻana o ka nui o nā pēpē like, e piʻi pū ana ko lākou ʻokoʻa kino. I loko o kahi noiʻi hou e pili ana i nā hana o ka hānau māhoe, ua hōʻoia ʻo Kauka Steinman i ka hoʻohana ʻana i ka in vitro fertilization (IVF) e hoʻonui i ka manawa o ka loaʻa ʻana o nā māhoe like: implanting ʻelua embryos hānau i ʻekolu pēpē, ua ʻōlelo pū ʻo ia e hoʻonui i ka calcium. a i ʻole ka emi ʻana o ka nui o ka mea chelating agent - ethylenediaminetetraacetic acid (EDTA) i loko o ke kaiapuni IVF hiki ke hōʻemi i ka pilikia o nā pilikia i makemake ʻole ʻia.