Nkhani
Methylene blue, methylfolate, ndi methyl-B12: zinthu zosiyanasiyana ndi ntchito zake
Methylene blue si methylfolate kapena methyl-B12. Methylfolate ndi mtundu wa vitamini B9; methyl-B12 ndi methylcobalamin, mtundu wa vitamini B12. Zonsezi zimagwira nawo ntchito imodzi ya kusintha kwa mankhwala m’thupi. Methylene blue ndi utoto wopangidwa komanso chinthu chogwiritsidwa ntchito ngati mankhwala, chokhala ndi kapangidwe kosiyana. Si chopereka gulu la methyl monga chopatsa thanzi, komanso si cholowa m’malo mwa vitamini iliyonse mwa ziwirizi.
Mayina ofananawa amapangitsa mawu opanda umboni kumveka ngati omveka: ngati chinthu chili ndi “methyl,” mwina chimathandiza “methylation.” Dzina la mankhwala silingatsimikizire ntchito imeneyo. Mafunso ofunika ndi akuti molekyuluyo imagwira ntchito yanji pa kusintha kwinakwake kwa mankhwala, komanso ngati ntchitoyo yasonyezedwa kuti ili ndi phindu kwa munthu amene akuganiza zoigwiritsa ntchito.
Yerekezerani zimene zinthu zili musanayerekezere mapindu ake
PubChem imatchula methylene blue kuti ndi methylthioninium chloride, utoto wa m’gulu la phenothiazinium. Tsamba la NIH lofotokoza za folate limatchula methylfolate kuti ndi 5-methyltetrahydrofolate, yomwe nthawi zambiri imafupikitsidwa kukhala 5-MTHF. Tsamba la NIH lofotokoza za vitamini B12 limasiyanitsa methylcobalamin ndi mitundu ina ya B12. Kufotokoza zimenezi kumathandiza kumvetsa kuyerekezera komwe kuli pansipa.
| Funso | Methylene blue | Methylfolate | Methyl-B12 |
|---|---|---|---|
| Ndi chiyani? | Methylthioninium chloride, utoto wopangidwa | 5-MTHF, mtundu wa folate | Methylcobalamin, mtundu wa B12 wokhala ndi cobalt |
| Kodi ndi vitamini? | Ayi | Mtundu wa vitamini B9 | Mtundu wa vitamini B12 |
| Ntchito yake yoyenera kuganiziridwa pa kusintha kwa mankhwala m’thupi | Imatha kulandira ndi kusamutsa maelekitironi kudzera mu redox | Imapereka gulu la methyl pa ntchito ya methionine synthase | Cofactor yomangiriridwa ku enzayimu yomwe imathandiza kusamutsa gululo kupita ku homocysteine |
| Ndi kusiyana kotani kofunika? | Kugwira ntchito ngati mankhwala kumasiyana ndi kubwezeretsa chopatsa thanzi | Kapangidwe ndi kusintha kwa folate zimasiyana ndi za B12 | Cofactor si enzayimuyo yokha |
| Kodi dzina lake silitsimikizira chiyani? | Kuti ingalowe m’malo mwa folate kapena kukhala chithandizo cha methylation | Kuti aliyense amafunikira mtundu umenewu wa folate | Kuti mtundu uwu wa chowonjezera ndi wabwino kwambiri pa vuto lililonse lokhudzana ndi B12 |
Uku ndi kuyerekezera ntchito zake, osati kusanja kuti ndi iti yabwino kuposa inzake. Chinthu sichingalowe m’malo mwa chopatsa thanzi chifukwa chokha chakuti zonsezi zimafotokozedwa ndi mawu monga “mphamvu” kapena “thanzi la ubongo.” Kuti mumvetse zambiri zokhudza chimene methylene blue ili ndi kagwiritsidwe kake, onani chimene methylene blue ili.
Zimene folate ndi B12 zimachitadi limodzi
Njira za kagayidwe ka zinthu za kaboni mmodzi zimasamutsa magulu okhala ndi atomu imodzi ya kaboni kudzera m’kusintha kolumikizana kwa mankhwala. Gulu la kabonilo limakhala lolumikizidwa ku molekyulu yolinyamula; silimayendayenda palokha ngati “chowonjezera methylation.”
Enzayimu ya MTHFR imasintha 5,10-methylenetetrahydrofolate kukhala 5-methyltetrahydrofolate. Mawu ooneka ofanana amenewa akunena za mitundu iwiri ya folate. Palibe imene ili methylene blue.
Pa ntchito ya methionine synthase, gulu la methyl lochokera ku 5-MTHF limadutsa pa cofactor ya B12 ya enzayimuyo n’kupita ku homocysteine, n’kupanga methionine. Choncho folate ndi B12 zili ndi ntchito zolumikizana koma zosiyana: imodzi imapereka gululo, ndipo inayo imathandiza kulisamutsa. Kenako methionine ingagwiritsidwe ntchito kupanga S-adenosylmethionine, kapena SAM, yomwe imapereka magulu a methyl pa kusintha kwina kochuluka kwa mankhwala.
Ndondomekoyi ikufotokozanso chifukwa chake “magulu ambiri a methyl” si chifukwa chokwanira choperekera chithandizo. Njira ya kusintha kwa mankhwala m’thupi imaphatikizapo zinthu zimene zimasinthidwa, maenzayimu, ma cofactor ndi kayendetsedwe ka ntchitoyo. Kusonyeza pamene chopatsa thanzi chimagwira ntchito sikutsimikizira kuti pali kuperewera kwake, chifukwa cha chizindikiro chinachake, kapena phindu lowonjezera chopatsa thanzicho.
B12 ili ndi mtundu wina wogwira ntchito, adenosylcobalamin, womwe umathandiza enzayimu ina pa kusintha kokhudzana ndi methylmalonyl-CoA. Kutchula methylcobalamin kuti ndi “B12 yogwira ntchito” sikutanthauza kuti ndi mtundu wokhawo wa B12 wothandiza. Kuyerekezera kwa NIH kwa mitundu ya B12 ya m’zowonjezera sikutsimikizira kuti pali mtundu umodzi wabwino kuposa ina kwa aliyense.
Chifukwa chake methylene blue si cholowa m’malo cha methylation
Malangizo a kupereka PROVAYBLUE amapereka chitsanzo chomveka cha ntchito ya redox ya methylene blue. Pochiza methemoglobinemia yomwe si yobadwa nayo, methylene blue imalandira maelekitironi n’kusanduka leucomethylene blue kudzera m’njira yodalira NADPH. Mtundu wolandira maelekitironiwo umathandiza kusintha chitsulo cha mu hemoglobin kuchoka mu mkhalidwe wa ferric kupita mu mkhalidwe wa ferrous. Uku ndi kusamutsa maelekitironi, osati kupereka gulu la methyl ku homocysteine.
Kapangidwe ka methylene blue kali ndi magulu a methyl. Kukhalapo kwawo sikutanthauza kuti maguluwo angagwiritsidwe ntchito m’njira ya folate/B12. Kunena kuti ndi “chopereka gulu la methyl” kumafuna umboni wa kusamutsa kumene kumachitikadi; kungotchula dzina lake kapena kapangidwe kake sikokwanira.
Mofananamo, zotsatira za MTHFR sizisonyeza kuti methylene blue imadutsa njira ina kupeŵa kusintha kwa mankhwala komwe sikukugwira bwino ntchito, kapena kuti imathandiza pa zotsatira za thanzi zogwirizana ndi zimenezo. Malangizo a mankhwalawo amatsimikizira kugwiritsidwa ntchito kwake pochiza methemoglobinemia yomwe si yobadwa nayo, osati pochiza mitundu yofala ya MTHFR. Umboni wochokera kwa anthu wokhudza mapindu a methylene blue umafunika kuunikidwa payokha pa zotsatira zilizonse.
Zimene zotsatira za MTHFR zimakuuzani ndi zimene sizimakuuzani
MTHFR ndi jini, ndipo chinthu chimene imapanga ndi enzayimu. Mitundu yofala monga C677T ndi yosiyana ndi mitundu yosowa yomwe imayambitsa matenda aakulu obadwa nawo. Lipoti la majini loperekedwa kwa munthu siliyenera kusakaniza magulu amenewa n’kunena kuti “methylation yake yawonongeka.”
Mafotokozedwe a CDC a mitundu yofala ya MTHFR amanena kuti anthu okhala ndi mitundu imeneyi amatha kugwiritsa ntchito folic acid m’thupi. Kukhala ndi mtundu wofala wokha si chifukwa choipewera. Chidule cha CDC cha zachipatala sichimalimbikitsanso kusintha kuchuluka kwa folate imene munthu amalandira chifukwa chokha cha mtundu wake wa jini ya MTHFR.
Mtundu wa majini si muyeso wa kuchuluka kwa chopatsa thanzi. Homocysteine nayonso si “muyezo wa methylation” wokwanira: kuchepa kwa folate, kuchepa kwa B12 ndi mmene impso zikugwirira ntchito zingakhudze kuchuluka kwake. Kuunika kuyenera kulumikiza zotsatira zinazake ndi mmene munthu alili pa zakudya ndi zopatsa thanzi, zizindikiro zake ndi zina zomwe zapezeka. Umboni umenewo sungalowedwe m’malo ndi kungofanizira dzina la jini ndi dzina la chinthu.
Tanthauzo la mawu amene nthawi zambiri amasokonezedwa
| Mawu | Tanthauzo | Kusokoneza kofala koyenera kupewa |
|---|---|---|
| Gulu la methyl | Atomu ya kaboni yolumikizidwa ndi maatomu atatu a haidrojeni, yolembedwa CH₃, yomwe ili yolumikizidwa mkati mwa molekyulu | Kukhalapo kwake sikungopangitsa chinthu kukhala chopereka gululo m’thupi |
| Chopereka gulu la methyl | Molekyulu yopereka gulu la methyl pa kusintha kwinakwake kwa mankhwala | Ntchitoyo iyenera kufotokozedwa potengera kusintha kumene ikugwira nawo ntchito |
| Methylation | Kuwonjezera gulu la methyl ku molekyulu | Si ntchito imodzi ya m’thupi lonse yokhala ndi mlingo umodzi “wabwino kwambiri” kwa aliyense |
| Folate | Gulu la vitamini B9 | Folic acid ndi 5-MTHF ndi mitundu yosiyana |
| MTHFR | Dzina la jini komanso chidule cha methylenetetrahydrofolate reductase | Si chidule cha methylene blue |
| Cofactor | Chinthu chosakhala puloteni chofunika kuti enzayimu igwire ntchito | B12 imathandiza enzayimu; si methionine synthase yokha |
| Redox | Oxidation ndi reduction zolumikizana, zomwe zimakhudza maelekitironi | Kusamutsa maelekitironi ndi kusamutsa gulu la methyl ndi njira zosiyana |
| Methyl blue | Utoto wina wokhala ndi dzina lake | Onani kuyerekezera kwa mitundu ya utoto wabuluu yokhala ndi mayina ofanana musanasinthanitse zinthu zogwiritsidwa ntchito m’labotale |
Chifukwa chake kusiyanaku kumakhudza chisankho cha thanzi
Folate ndi B12 sizingalowe m’malo mwa inzake ngakhale kuperewera kwa chilichonse kungasonyeze zotsatira zofanana za kuyezetsa magazi. NIH imafotokoza kuti kulandira folate yambiri kungachepetse kusowa kwa magazi kobwera chifukwa cha kuperewera kwa B12 popanda kuchiza kuwonongeka kwa mitsempha kochitika chifukwa chake. Choncho kuchiza zimene zangotchedwa “vuto la methylation” kungaphonye vuto lenileni.
Methylene blue imabweretsa nkhawa zina zosiyana. Malangizo ake a mankhwala operekedwa ndi dokotala ali ndi chenjezo lalikulu la serotonin syndrome ikagwirizana ndi mankhwala ena, komanso amaletsa kugwiritsidwa ntchito kwa anthu operewera G6PD chifukwa cha chiopsezo cha kuwonongeka kwa maselo ofiira a magazi. Kuiphatikiza ndi mavitamini sikuchotsa makhalidwe amenewo. Zonena zokhudza mmene imakhudzira mankhwala otumiza mauthenga pakati pa maselo a mitsempha kapena kuiphatikiza ndi njira zokhudzana ndi NAD+ zimafuna umboni wawozawo wa mmene zimagwirira ntchito ndi wa zachipatala.
Pounika zonena zinazake, dziwani chinthu chenichenicho, kusintha kwa mankhwala kumene akunena kuti chimachita, vuto limene akufuna kuthana nalo ndi zotsatira zoyezedwa mwa anthu. Ngati kufotokozera kukudumpha kuchokera pa kufanana kwa mayina kupita ku malangizo a chithandizo, umboni wofunikira ukusowa.