Video: Melanin tiv thaiv folate li cas?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hauv keratinocytes, melanin granules sib sau ua ke saum cov nuclei thiab ua raws li tshuaj pleev thaiv hnub tiv thaiv teeb meem UVR ua ntej nws tuaj yeem ncav cuag cov tub ntxhais thiab ua rau DNA puas. Melanin ua hauj lwm rau tiv thaiv yam tsawg ib feem los ntawm kev hloov pauv uas yuav tshwm sim los ntawm UVR raug (Ohnishi thiab Mori 1998).
Yooj yim li ntawd, folate yuav ua li cas rau xim tawv nqaij?
Folate nyob rau hauv tawv nqaij tiv thaiv kabmob kheesxaws. Melanin pigmentation thiab kev hloov pauv ntawm qhov tsaus ntuj tawv nqaij yog ib qho kev tiv thaiv kev tiv thaiv tiv thaiv qib siab ntawm UVR raug. Tsis ntev los no, qhov kev xav tias tawv nqaij pigmentation tshuav nyiaj li cas cov tshuaj folate khaws cia thiab tsim cov vitamin D muaj sawv tawm
Kuj Paub, kev sib txheeb ntawm melanin thiab folate yog dab tsi? Nws tuaj yeem hais qhia qhov ntawd cov tshuaj folate thiab melanin sib xyaw ua ke yog synergistic; melanin ntawm ib sab tes, tiv thaiv cov tshuaj folate los ntawm UVR cuam tshuam txog kev puas tsuaj, uas nyob rau hauv lem txhawb kev cuam tshuam ntawm folate hauv melanogenesis.
Ib tus kuj yuav nug, ua li cas melanin tiv thaiv cov cell?
Kawm: Melanin Tiv Thaiv Peb Los Ntawm Cov Kab Mob Cancer Tab sis Tseem Ua Rau Nws Thiab. UVA hluav taws xob ua rau muaj qhov txhab lossis DNA puas rau melanocytes, uas yog tawv nqaij hlwb uas tsim cov tawv nqaij xim hu ua melanin . Melanin yog cov xim tiv thaiv ntawm daim tawv nqaij, thaiv UV tawg los ntawm kev puas DNA thiab muaj peev xwm ua rau mob qog noj ntshav.
Puas yog folic acid ua rau koj cov tawv nqaij tsaus?
Vitamin Deficiency Deficiency ntawm cov vitamins B-9 ( folic acid ) thiab B-12 (cobalamin) tuaj yeem ua rau muaj teeb meem xim xim ua rau thaj tawv nqaij . Qhov tsis txaus ntawm cov vitamins uas tshwm sim los ntawm kev txo qis ntawm yog li zaub thiab txiv hmab txiv ntoo tshiab tuaj yeem ua tau ua koj tawv nqaij pom npub thiab tsaus ntuj.
Pom zoo:
Yuav tiv thaiv kev tiv thaiv tus kheej li cas?
Passive Immunity. Kev tiv thaiv tsis zoo tuaj yeem tshwm sim ib txwm muaj, xws li thaum tus menyuam mos tau txais niam cov tshuaj tiv thaiv los ntawm lub tsho me nyuam lossis niam mis, lossis dag, xws li thaum tus neeg tau txais cov tshuaj tiv thaiv kab mob hauv kev txhaj tshuaj (txhaj tshuaj gamma globulin)
Cell tiv thaiv kev tiv thaiv kab mob ua haujlwm li cas?
Cell-mediated immunity (CMI) yog kev tiv thaiv kab mob uas tsis koom nrog cov tshuaj tiv thaiv tab sis ntau ntxiv nrog kev ua kom macrophages thiab NK-cells, tsim cov antigen-specific cytotoxic T-lymphocytes, thiab tso tawm ntau yam cytokines hauv kev teb rau antigen
Cell tiv thaiv kev tiv thaiv kab mob txhais tau li cas?
Los ntawm Wikipedia, phau ntawv txhais lus pub dawb. Kev tiv thaiv kab mob ntawm tes yog kev tiv thaiv kab mob uas tsis koom nrog cov tshuaj tiv thaiv kab mob. Qhov tseeb, kev tiv thaiv kab mob hauv nruab nrab ntawm tes yog ua kom muaj phagocytes, antigen-specific cytotoxic T-lymphocytes, thiab tso tawm ntau yam cytokines hauv kev teb rau antigen
Lub cev tiv thaiv nws tus kheej tiv thaiv kab mob li cas?
Tej teeb meem xws li daim tawv nqaij, mucous daim nyias nyias, kua muag, pob ntseg, mucus, thiab plab acid. Tsis tas li, cov dej ntws ib txwm tso zis tawm cov kab mob uas nkag mus rau hauv cov hlab zis. Lub cev tiv thaiv kab mob siv cov qe ntshav dawb thiab cov tshuaj tiv thaiv los txheeb xyuas thiab tshem tawm cov kab mob uas tau dhau los ntawm lub cev cov teeb meem ntuj
Thaum ntsuas kub li cas IgM cov tshuaj tiv thaiv tshuaj tiv thaiv?
Qhov kub zoo tshaj plaws nyob ntawm hom tshuaj tiv thaiv kab mob koom nrog. IgG cov tshuaj tiv thaiv zoo tshaj plaws ntawm 37oC; IgM hnov zoo tshaj plaws ntawm 4oC