Ua lohe paha ʻoe i kēia 'FISH test' (Fluorescence in Situ Hybridization Test)? Malia paha ua noi kāu kauka iā ʻoe a i ʻole kekahi āu i ʻike ai e hana i kēia hoʻokolohua. ʻOiai paha he mea paʻakikī iki ke kani ʻana, he hoʻokolohua koʻikoʻi loa ia e hiki ke ʻike i nā mea he nui i loko o ko mākou kino. No laila i kēia lā, e kamaʻilio kākou e pili ana i ke ʻano o kēia hoʻokolohua FISH, kāna hana, a pehea e hana ʻia ai ma ke ʻano maʻalahi hiki iā ʻoe ke hoʻomaopopo.
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He aha kēia hoʻāʻo FISH (Fluorescence in Situ Hybridization)?
I ka ʻōlelo maʻalahi, he hoʻāʻo genetic ʻo FISH. Hoʻohana nā pathologists, he mau kauka loea i ka ʻike ʻana i nā maʻi , i kēia ʻano hana e ʻike ai i nā maʻi i hoʻokumu ʻia e nā loli i nā mea liʻiliʻi i kapa ʻia he chromosomes i loko o ko mākou kino. I kekahi manawa, hiki i kēia hoʻāʻo ke kōkua i ka ʻike ʻana i nā loli genetic e hiki ke mālama ʻia no nā maʻi e like me ke kanesa.
E noʻonoʻo i kēia ʻano: ua like ko kākou mau genes me kahi puke kuhikuhi no ko kākou kino. Hōʻike kēia puke kuhikuhi iā kākou pehea e hana ai nā mea āpau i loko o ko kākou kino. Aia kēia mau genes i loko o nā ʻano i kapa ʻia he chromosomes, e like me nā kaula. No laila, he aha ka mea e hana ai inā holoi ʻia kekahi o nā huaʻōlelo i loko o kēia puke kuhikuhi, ʻo kā kākou DNA (deoxyribonucleic acid) , a inā he nui loa nā huaʻōlelo, a inā paha e hoʻololi ʻia kekahi mau huaʻōlelo? Loaʻa i kā kākou mau cell nā kuhikuhi hewa. Ma kēia ʻano, hiki ke nalowale ka ʻike (holoi ʻia), kope ʻia ma mua o ka mea e pono ai (amplification), a neʻe ʻia paha (translocation). Hiki i kēia mau hoʻololi ke hoʻololi i ke ʻano o ka hana ʻana o ko kākou kino a hoʻoulu i nā maʻi e like me ke kanesa.
No laila, ʻo ka hana a kēia hoʻāʻo FISH, ua like ia me ka hoʻohana ʻana i nā peni kala e "kala" i nā ʻāpana kikoʻī o nā chromosomes a i ʻole nā genes. A laila, hiki i kēlā mau kauka loea ke loaʻa maʻalahi i nā ʻāpana e pono ai lākou e ʻike i nā maʻi ma ka nānā ʻana iā lākou ma lalo o kahi microscope. Ke nānā ʻoe i kēia kala ma lalo o kahi microscope, ua like ia me nā kukui kala.
He aha ka mea e hiki ke ʻike ʻia e ka hoʻāʻo FISH?
A laila e noʻonoʻo paha ʻoe, he aha ka mea hiki ke loaʻa me kēia hoʻāʻo FISH? ʻO nā mea nui:
- E ʻike i nā hoʻololi nui ʻana o nā genes i nā maʻi kanesa. Ma ka hoʻohana ʻana i kēia ʻike, hiki i nā kauka ke ʻike pololei i ke ʻano o ka maʻi kanesa a koho i ka lāʻau lapaʻau maikaʻi loa no ia.
- E nānā i kekahi mau ʻano ʻē o ka chromosomal ma mua o ka hānau ʻana o kahi pēpē (prenatal) a ma hope paha o ka hānau ʻana. Kōkua kēia i ka ʻike ʻana i kekahi mau kūlana genetic i ka wā mua.
- ʻO ka hoʻoulu ʻana in vitro (IVF) e pili ana i ka hoʻāʻo ʻana i ka embryo no nā ʻano chromosomal ma mua o ke kanu ʻia ʻana i loko o ka ʻōpū o ka makuahine (preimplantation genetic testing).
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Check Availability →Pehea e hana ai kēia hoʻāʻo FISH?
ʻAe, e nānā kākou i ka mea huna liʻiliʻi e pili ana i ka hana ʻana o kēia hoʻāʻo FISH.
Ua ʻōlelo mua au ua like ko kākou DNA me kahi puke kuhikuhi nui. No laila, ua like kēia hoʻāʻo FISH me ka hōʻike ʻana i nā ʻāpana koʻikoʻi o kēlā puke kuhikuhi me kahi pena fluorescent kūikawā. Hana nā kānaka ʻepekema i kēia "pena kala," a i ʻole "probe," ma ka hoʻopili ʻana i nā lepili fluorescent i ka DNA ponoʻī.
Ua hana ʻia kā mākou DNA me ʻelua mau kaula e pili pū ana, e like me nā niho o ka zipper. ʻO ka mea a nā kānaka ʻepekema e hana ai, hoʻokaʻawale mua lākou i kēia mau kaula ʻelua ma ka hoʻohana ʻana i kahi probe a lākou i hana ai, a me ka DNA i loko o ka hāpana a lākou e makemake ai e hoʻāʻo. Hana lākou i kēia probe e kūlike me ke kaʻina DNA a lākou e ʻimi nei, ʻo ia hoʻi, ka ʻōlelo pololei a lākou e ʻimi nei i loko o ka puke kuhikuhi.
A laila, hoʻohuihui lākou i kēia mau probes i hoʻomākaukau ʻia me kahi hāpana DNA i lawe ʻia mai kahi ʻiʻo kino a i ʻole ka wai (ua kapa ʻia kēia ʻo ka pahuhopu). A laila, inā hele kēlā probe a loaʻa kahi ʻāpana DNA i loaʻa ka huaʻōlelo āna e ʻimi nei, e pili ia iā ia (hybridize). Ma muli o kēlā mau lepili ʻālohilohi, e ʻālohilohi kēlā ʻāpana DNA i kahi kala nani. Ke nānā ka pathologist iā ia me kahi microscope kūikawā, e ʻike nani ʻia kēia mau kiko ʻālohilohi. A laila hiki iā ia ke hoʻomaopopo inā aia ka ʻike pili a me ka nui o ia mea ma laila. ʻAʻole anei he mea kupaianaha?
Nā loli genetic i hiki ke ʻike ʻia e ka hoʻāʻo FISH
Hiki i nā pathologists ke hoʻohana i kēia hoʻāʻo FISH e nānā i nā cell no nā hoʻololi gene i ʻike ʻia e hoʻoulu ai i nā maʻi e like me ke kanesa. I kekahi manawa hiki iā ia ke kōkua i ka hōʻoia a i ʻole ka wehewehe ʻana i nā hopena o kahi hoʻāʻo karyotyping, ʻo ia hoʻi kahi hoʻāʻo o nā chromosomes . Eia kekahi o nā loli kikoʻī e hiki ke loaʻa i kahi hoʻāʻo FISH:
- Hoʻonui: ʻO kēia ka manawa he nui aku nā kope o kahi gene ma mua o ka mea i manaʻo ʻia. Ua like ia me ka hana ʻana i kahi kope kahi āu e makemake ai e hana i kahi kope. Hiki i nā kānaka ʻepekema ke hoʻohana iā FISH e ʻike i ka nui o nā kope o kahi gene ma mua o ka mea i manaʻo ʻia.
- Nā hoʻololi/hoʻonohonoho hou ʻana: ʻO kēia ka wā e hoʻoneʻe ʻia ai kahi ʻāpana o kahi gene a i ʻole chromosome i kahi ʻokoʻa ma mua o ka mea e pono ai. Hiki i nā kānaka ʻepekema ke hoʻohana i ʻelua mau probes kala e ʻike i kēia. I loko o kahi gene maʻamau, pono e ʻike ʻia nā kala ʻelua o kēia mau probes kokoke i kekahi i kekahi. Akā inā ua loli ke wahi, e ʻike ʻia nā kala ʻelua ma kahi mamao loa.
- Nā Holoi ʻana: E like me nā hoʻoili ʻana, hoʻohana nā kānaka ʻepekema i nā probe he nui e ʻimi i nā wahi i nele ai ka ʻike i loko o ka DNA. E hoʻopili kekahi mau probes i ka DNA i loko o ka hāpana, akā ʻaʻole e hoʻopili kekahi i kahi e pono ai. ʻO ia ka manawa e ʻike ai lākou ua nalowale kekahi ʻike (holoi ʻia) ma ia wahi.
Nā maʻi i hiki ke ʻike ʻia me ka hoʻāʻo FISH
Hiki i nā kauka ke hoʻohana i ka hoʻāʻo FISH e ʻike i nā loli genetic e hiki ke kōkua i ka ʻike ʻana i nā kūlana e like me:
- ʻO ka maʻi ʻōpū
- ʻO ka maʻi leukemia myeloid koʻikoʻi, ka maʻi leukemia myeloid mau loa, a me nā ʻano leukemia ʻē aʻe
- ʻO ka myeloma lehulehu
- Ka maʻi ʻōpū
- ʻO Glioma (kahi ʻano maʻi ʻaʻai lolo)
- Mesothelioma (ka maʻi ʻaʻai māmā)
- ʻO ka hoʻonui ʻana o HER2 (ʻike pinepine ʻia kēia i ka maʻi kanesa o ka umauma, akā hiki ke ʻike ʻia i ka maʻi kanesa o ka ʻōpū a me ka māmā)
- Hoʻonui ʻia ka MET (ʻike pinepine ʻia kēia i nā maʻi kanesa o ka māmā, ka ʻōpū, a me ka esophageal)
- Ka hoʻonui ʻana o MYCN (i loko o ke ʻano maʻi kanesa i kapa ʻia ʻo Neuroblastoma)
- I loko o ke kanesa māmā ʻaʻole liʻiliʻi , hana ʻia nā hoʻonohonoho hou ʻana/hui ʻana o nā genes ALK, RET, a me ROS1. Hiki i kēia mau genes ALK, RET, a i ʻole ROS1 ke hui pū me kekahi gene ʻē aʻe e hoʻoulu ai i ka maʻi kanesa.
Pehea e hoʻomākaukau ai no kahi hoʻokolohua FISH?
ʻO ke ʻano o kāu hoʻomākaukau ʻana no kahi hoʻāʻo FISH e pili ana i ke ʻano o ka hāpana a kāu kauka e lawe ai mai ou aku.
- No ka hoʻāʻo prenatal: E hana kāu kauka i kahi hoʻokolohua kūikawā i kapa ʻia ʻo amniocentesis .
- No ka hoʻāʻo ʻana i ka genetic preimplantation (PGD a i ʻole PGS): Lawe ʻia kahi hāpana liʻiliʻi o nā cell mai kekahi mau embryos no ka hoʻāʻo ʻana. Hana pinepine ʻia kēia i kekahi mau lā ma hope o ka ovulation.
- Inā kānalua kāu kauka ua loaʻa iā ʻoe a i ʻole kāu keiki kahi maʻi i hoʻokumu ʻia e kahi ʻano chromosomal a i ʻole ka hoʻololi ʻana o ka gene: Hiki ke nānā ʻia kēia me kahi hoʻāʻo koko maʻalahi.
- No ka ʻike ʻana i ke kanesa a i ʻole nā hoʻololi genetic i loko o nā hunaola kanesa (hoʻāʻo molecular): Pono ʻoe e loaʻa i kahi biopsy tumor a iwi paha) , ʻo ia hoʻi kahi hāpana o ka ʻiʻo a iwi paha.
- No ka ʻike ʻana a i ʻole ka nānā ʻana i ke kanesa o ka ʻōpū mimi: I kekahi manawa, hana ʻia kahi hoʻāʻo FISH ma kahi hāpana mimi .
ʻO kēia mau hoʻokolohua, ʻo ka biopsy wale nō ka mea e pono ai ka hoʻomākaukau kūikawā. ʻOiai ʻo ka hapa nui o nā biopsies e hana ʻia ma lalo o ka anesthesia, pono ʻoe e hahai i nā ʻōlelo a kāu kauka no ka hoʻomākaukau ʻana.
Pehea e hana ai nā pathologists i kēia hoʻāʻo FISH?
No ka hoʻāʻo FISH, hahai ke kauka pathologist a i ʻole ka mea hana hale hana i kēia mau ʻanuʻu:
1. Ke hana ʻana i nā probe(s): Ma kēia, koho lākou i nā ʻāpana DNA e kūlike me ke kaʻina DNA a lākou e ʻimi nei. A laila, hana lākou i nā ʻoki liʻiliʻi i loko o kēlā DNA a hoʻohui i nā lepili fluorescent.
2. Ke hoʻokaʻawale ʻana i ka probe a me ka pahuhopu: Pili kēia i ka hoʻokaʻawale ʻana i nā pilina pālua ma waena o ka probe a me ka hāpana DNA e hoʻāʻo ʻia nei.
3. Hoʻohuihui ʻana: Ke hui pū ʻia nā probes me kahi hāpana DNA i lawe ʻia mai kahi ʻiʻo kino a i ʻole ka wai, hoʻopili nā probes i nā moʻo DNA a lākou e ʻimi nei.
4.Ke nānā nei i nā hualoaʻa: Hoʻohana lākou i kahi microscope fluorescent kūikawā e ʻike i kahi e ʻālohilohi ai nā lepili i loko o ka hāpana.
A laila e hōʻike ka pathologist i kēia mau hopena i kāu kauka .
He aha nā hopena o ka hoʻāʻo FISH?
ʻO ke ʻano o nā hopena āu e loaʻa ai mai kahi hoʻāʻo FISH e pili ana i ke ʻano o ka hoʻāʻo āu i loaʻa ai. ʻO kahi hoʻāʻo FISH maikaʻi ke ʻano he ʻano chromosomal a genetic paha i loko o nā cell i loko o ka hāpana. ʻOi aku ka maikaʻi o ke kamaʻilio ʻana me kāu kauka e pili ana i ke ʻano o nā hopena a me ko lākou manaʻo.
He aha ka mea e hana inā maikaʻi ka hoʻāʻo FISH?
Inā maikaʻi kāu hoʻāʻo FISH, e wehewehe kāu kauka i ke ʻano o ia mea a me kāu mau koho. Inā ua hana ʻia ka hoʻāʻo e ʻike i nā hoʻololi genetic i loko o kahi maʻi kanesa, aia paha nā lāʻau lapaʻau i kuhikuhi ʻia e kuhikuhi ana i kēlā mutation kikoʻī. No laila he mea nui e kamaʻilio me kāu kauka me ka hopohopo ʻole.
ʻEhia ka lōʻihi e loaʻa ai nā hopena o kahi hoʻāʻo FISH?
Hiki ke hala ma waena o hoʻokahi a ʻehā pule e loaʻa ai nā hopena o kahi hoʻāʻo FISH. E haʻi aku kāu kauka iā ʻoe i ka wā e manaʻo ai i nā hopena a pehea e ʻike ai.
Āhea wau e hoʻokaʻaʻike aku ai i kaʻu kauka?
Inā he mau nīnau kāu e pili ana i ka hoʻāʻo a i ʻole nā hopena āu i loaʻa ai, mai kānalua e kamaʻilio me kāu kauka. E wehewehe lākou i nā mea āpau iā ʻoe.
ʻO ka mea hope loa, ʻo ka leka koʻikoʻi loa
Hiki i ke kali ʻana i nā hopena o nā hoʻokolohua genetic ke hopohopo, hopohopo, a i kekahi manawa he mea hoʻoluhi iki. Ke kali nei paha ʻoe i kahi pane. ʻO kēia hoʻāʻo FISH kahi ʻenehana e kōkua iā ʻoe e loaʻa i kēlā mau pane, e like me ka "highlighter" e ʻike a hoʻoluʻu i ka ʻike āu e pono ai .
ʻAʻole paha nā pane āu e loaʻa ai e like me kāu i manaʻo ai, akā e kōkua lākou iā ʻoe e hoʻomaopopo i kou kūlana a me kāu mau koho. Mai laila mai, hiki iā ʻoe a me kāu kauka ke hana pū e hoʻomohala i ka hoʻolālā maikaʻi loa no ka neʻe ʻana i mua.
E hoʻomanaʻo, he mea nui loa e noi i kāu kauka no ka wehewehe ʻana i kekahi mea āu e manaʻo ai e pili ana i ka hoʻokolohua, no ke aha e hana ʻia ai, a me ke ʻano o nā hopena.
Hoʻāʻo Iʻa , hoʻāʻo genetic, chromosomes, DNA, maʻi ʻaʻai, nā hoʻololi genetic, hoʻāʻo prenatal
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