Kodi mumamvanso kutopa nthawi zonse? Kodi mumamva ngati mulibe mphamvu? Mwina dokotala wanu wayang'ana lipoti la magazi nati "kusowa kwa iron" kapena "kusowa magazi m'thupi". Ili ndi vuto lomwe anthu ambiri m'dziko lathu ali nalo. Ndiye, kodi mukudziwa amene amalamulira chinthu chofunikira ichi chotchedwa iron m'thupi lathu? Pali "bwana" weniweni wa iron. Amatchedwa Hepcidin . Mwina simunamvepo za dzinali. Koma ntchito yomwe limachita kuti thupi lathu likhale lathanzi si ntchito yaing'ono. Tiyeni tikambirane lero za "bwana wa iron" uyu m'thupi lathu.
Mwachidule, kodi Hepcidin uyu ndi ndani?
Hepcidin ndi mahomoni opangidwa ndi chiwindi chathu ndikutulutsidwa m'magazi. Mahomoni ali ngati amithenga omwe amalamulira ntchito iliyonse m'thupi lathu. Chifukwa chake ntchito yayikulu ya mthenga wotchedwa hepcidin ndikuwongolera momwe thupi lathu limagwiritsira ntchito chitsulo. Kunena zoona, ndiye amene amasankha kuchuluka kwa chitsulo chomwe thupi limafuna, kuchuluka komwe liyenera kusunga, komanso nthawi yomwe liyenera kugwiritsa ntchito chitsulocho. Ichi ndichifukwa chake anthu ena amatcha hepcidin kuti "Master Iron Regulator".
Nanga n’chifukwa chiyani chitsulo chili chofunika kwambiri kwa ife?
Tangoganizani kuti pali ntchito yotumiza mpweya m'thupi lathu lonse. Magalimoto a ntchito yotumiza mpweya ndi maselo ofiira a magazi . Munthu amene amanyamula mpweya m'magalimoto amenewo ndi puloteni yotchedwa hemoglobin . Choncho chitsulo ndi chinthu chofunikira kwambiri popanga hemoglobin iyi. Popanda chitsulo, hemoglobin singapangidwe. Kenako maselo ofiira a magazi sangathe kunyamula mpweya. Pamenepo timatopa ndipo timavutika kupuma.
Sikuti kokha, chitsulo chimafunikanso kuti pakhale puloteni yotchedwa myoglobin, yomwe imapereka mpweya ku minofu ndi mtima wathu.
Mwachidule, chitsulo ndi mtima wa dongosolo lonyamula mpweya lomwe limapatsa moyo maselo a thupi lathu. Chifukwa chake ndikofunikira kwambiri kuti chitsulo ichi chikhale bwino. Ngati palibe chitsulo chokwanira, matenda monga kuchepa kwa magazi m'thupi chifukwa cha kusowa kwa chitsulo amayamba. Ngati pali chitsulo chochuluka, chingakhale poizoni m'thupi lathu ndikuwononga ziwalo. Kusunga chitsulocho moyenera ndiye ntchito yayikulu ya hepcidin.
Kodi hepcidin imalamulira bwanji chitsulo ichi?
Iyi ndi njira yodabwitsa kwambiri. Timapeza chitsulo kuchokera ku zakudya zomwe timadya (nyama, nsomba, ndiwo zamasamba, mtedza). Koma mosiyana ndi mchere wina, matupi athu alibe njira yotulutsira chitsulo chochuluka. Mwachitsanzo, ngati tili ndi sodium wochuluka (mchere), umatuluka mu mkodzo. Koma chitsulo sichimatuluka mosavuta choncho.
Chifukwa chake, limatanthauza kusungidwa kwa chitsulo chochulukirapo kuti chigwiritsidwe ntchito mtsogolo. Chitsulochi chimasungidwa makamaka m'mafupa athu,Mu ndulu ndi chiwindi .
Apa ndi pomwe hepcidin imagwira ntchito. Hepcidin imalowererapo pa kasamalidwe ka chitsulo m'njira zitatu zazikulu:
1. Amalamulira kuyamwa kwa chitsulo kuchokera ku chakudya: Chakudya chomwe timadya chikalowa m'matumbo athu ang'onoang'ono, maselo omwe ali mmenemo amayamwa chitsulocho m'magazi. Hepcidin imatsimikizira kuchuluka kwa chitsulo chomwe chimatulutsidwa m'magazi ndi kuchuluka kwa chomwe chimasungidwa.
2. Amabwezeretsanso chitsulo kuchokera ku maselo ofiira akale: Nthawi yapakati ya maselo ofiira athu ndi masiku pafupifupi 120. Nthawi imeneyo ikatha, ma macrophages , mtundu wa maselo oyera amagazi (monga 'gulu loyeretsa' la thupi), amawononga maselo ofiira akale awa. Koma akatero, amagwira ndikusunga chitsulo chamtengo wapatali mkati mwake. Chifukwa chake, hepcidin imasankha ngati chitsulo chosungidwachi chiyenera kubwezeretsedwa ku maselo ofiira amagazi omwe apangidwa kumene, kapena ngati chiyenera kusungidwa kwa nthawi yayitali.
3. Amalamulira kutulutsa kwa chitsulo chomwe chimasungidwa m'malo monga chiwindi: Hepcidin ndi yomwe imauza thupi ngati liyenera kutulutsa chitsulo chomwe chimasungidwa m'maselo a chiwindi ( ma hepatocytes ) ndi maselo ang'onoang'ono a m'matumbo ( ma enterocytes ) m'magazi pakafunika kutero.
Kodi izi zimagwira ntchito bwanji kwenikweni?
Kuti timvetse izi, tiyenera kudziwa wina. Munthu ameneyo ndi puloteni yotchedwa ferroportin . Taganizirani ngati chipinda chosungiramo zinthu mu selo yomwe imasunga chitsulo. Ferroportin ndi "chipata chomwe chimatulutsa chitsulo" cha chipinda chosungiramo zinthucho. Kuti chitsulo chilowe m'magazi, chipata ichi chiyenera kutsegulidwa.
Chimene hepcidin amachita ndi kulamulira chipata ichi.
- Pamene kuchuluka kwa hepcidin m'thupi kukukwera , hepcidin imamangirira ku chipata chotchedwa ferroportin ndikuchitseka . Kenako, chitsulo chomwe chili mkati mwa maselo sichingalowe m'magazi. Kuyamwa kwa chitsulo kumachepa.
- Pamene kuchuluka kwa hepcidin m'thupi kumachepa , chipata cha ferroportin sichimatsekeka. Choncho chipatacho chimakhala chotseguka . Chitsulo chomwe chili mkati mwa maselo chimalowa mosavuta m'magazi. Kuyamwa kwa chitsulo kumawonjezeka.
Kodi ndi zifukwa ziti zomwe zimayambitsa kusintha kwa kuchuluka kwa hepcidin?
Matupi athu ndi anzeru kwambiri. Amawonjezera kapena kuchepetsa kuchuluka kwa hepcidin malinga ndi zosowa zawo nthawi iliyonse. Pali zinthu zingapo zofunika zomwe zimakhudza izi.
| Chinthu Chokhudza | Zotsatira pa Hepcidin ndi Zotsatira zake |
|---|---|
| Kuchuluka kwa chitsulo m'thupi | Ngati chitsulo m'thupi chili chokwera , thupi limapanga hepcidin yambiri . Zimenezi zimalepheretsa kuyamwa chitsulo chochuluka. Ngati chitsulo chili chotsika , thupi limapanga hepcidin yochepa . Zimenezi zimatsegula zitseko kuti chitsulo chochuluka chilowe. |
| Kupanga maselo ofiira a magazi | Thupi likafunika kupanga maselo ofiira ambiri atsopano (monga, pambuyo pa kutuluka magazi), limafunika chitsulo chambiri kuti lipange hemoglobin. Kenako thupi limachepetsa kuchuluka kwa hepcidin. Izi zimatulutsa chitsulo chosungidwa ndipo zimathandiza kupanga maselo atsopano. |
| Mpweya wochepa (Hypoxia) | Pamene mpweya wokwanira m'thupi umachepa, thupi limaganiza kuti likufunika kupanga maselo ofiira ambiri onyamula mpweya (maselo ofiira a magazi). Popeza izi zimafuna chitsulo, zimachepetsa kuchuluka kwa hepcidin ndikutsegula zipata zachitsulo. |
| Matenda kapena Kutupa | Izi ndizofunikira kwambiri. Pamene kachilombo (monga mabakiteriya) kalowa m'thupi mwathu, kachilomboka kamafunikira chitsulo kuti kakule. Choncho thupi lathu lanzeru limaletsa kachilomboka kuti kasalandire chitsulo. Kuti tichite izi, thupi limawonjezera kuchuluka kwa hepcidin mwachangu . Kenako zipata zachitsulo zimatsekedwa, ndipo chitsulo chonse chimabisika mkati mwa maselo. Kachiromboka kamakhala kofooka popanda chitsulo. |
Kodi chimachitika ndi chiyani ngati kuchuluka kwa hepcidin sikuli koyenera?
Ngati ntchito ya chida ichi chowongolera chitsulo ikuyenda molakwika pang'ono, zingayambitse mavuto akulu. Ngati kuchuluka kwa hepcidin kuli kotsika kwambiri, thupi lidzakhala ndi chitsulo chochuluka (Iron Overload). Ngati kuchuluka kwa hepcidin kuli kokwera kwambiri, thupi lidzakhala ndi chitsulo chochepa (Iron Deficiency).
| Mkhalidwe | Mwachidule, chimachitika ndi chiyani? |
|---|---|
| Matenda omwe amayamba chifukwa cha kuchuluka kwa hepcidin (kuchuluka kwa chitsulo m'thupi) | |
| Hemochromatosis Yobadwa Nayo | Imeneyi ndi matenda a majini. Pankhaniyi, chiwindi sichingathe kupanga hepcidin yokwanira. Chifukwa chake, zipata zachitsulo (ferroportin) zimakhala zotseguka nthawi zonse. Thupi limayamwa chitsulo chochuluka kuposa chomwe chimafunikira ndikuchiyika m'ziwalo monga mtima, chiwindi, ndi kapamba, kuziwononga. |
| Kuchepa kwa magazi m'thupi chifukwa cha iron | Mu mitundu ina ya kuchepa kwa magazi m'thupi, pamakhala chitsulo chochuluka. Zolakwika zomwe zimachitika popanga maselo ofiira a m'magazi zimachepetsa kupanga hepcidin, zomwe zimapangitsa kuti chitsulo chiziyamwa kwambiri. |
| Chiwindi cha chiwindi C | Kachilombo kameneka kamawononga chiwindi, zomwe zimachepetsa mphamvu yake yopangira hepcidin. |
| Matenda a shuga amtundu wachiwiri | Kafukufuku wina wasonyeza kuti anthu omwe ali ndi matenda a shuga mwina adachepetsa kuchuluka kwa hepcidin komanso kuchuluka kwa chitsulo m'thupi. |
| Matenda omwe amayamba chifukwa cha kuchuluka kwa hepcidin (kusowa kwachitsulo) | |
| Kuchepa kwa magazi m'thupi kwa matenda osatha (ACD) | Imeneyi ndi vuto lofala kwambiri. Munthu akakhala ndi matenda a nthawi yayitali (monga matenda a impso, khansa, matenda a Crohn), pamakhala kutupa kosalekeza m'thupi. Kutupa kumeneku kumapangitsa kuti kuchuluka kwa hepcidin m'thupi kukwere . Kenako zipata zachitsulo zimatsekedwa. Ngakhale kuti pali chitsulo m'thupi, sizingagwiritsidwe ntchito. Izi zimayambitsa kuchepa kwa magazi m'thupi. |
| Matenda osatha | Matenda a nthawi yayitali amathanso kuwonjezera kutupa m'thupi, kuwonjezera kuchuluka kwa hepcidin, komanso kuyambitsa kusowa kwa chitsulo. |
Pomaliza, hepcidin ndi homoni yofunika kwambiri yomwe ndi yofunika kwambiri kuti thupi lathu likhale ndi chitsulo chokwanira. Mwa kutseka zitseko zachitsulo ndikuwongolera chitsulo, imalamulira mwachindunji kupanga hemoglobin ndi maselo ofiira a magazi, komanso kunyamula mpweya m'thupi lonse. Hepcidin imatitetezanso ku kuwonongeka kwakukulu komwe kungachitike ngati chitsulo chochuluka chilowa m'thupi.
Uthenga Wopita Nawo Kunyumba
- Hepcidin ndiye mahomoni akuluakulu opangidwa ndi chiwindi chathu omwe amalamulira kuchuluka kwa chitsulo m'thupi.
- Imagwira ntchito potseka "chipata" chonyamula chitsulo chotchedwa ferroportin. Hepcidin ikakhala yochuluka, kuyamwa kwa chitsulo kumachepa, ndipo hepcidin ikakhala yotsika, kuyamwa kwa chitsulo kumawonjezeka.
- Kuchuluka kwa Hepcidin kumasiyana malinga ndi zinthu monga kuchuluka kwa chitsulo m'thupi, zosowa za maselo ofiira a m'magazi, kuchuluka kwa mpweya, ndi matenda opatsirana.
- Kuchuluka kwa hepcidin kotsika kwambiri kungayambitse chitsulo chochuluka komanso kuwonongeka kwa ziwalo (monga hemochromatosis), pomwe kuchuluka kwakukulu kwambiri kungayambitse kusowa kwa chitsulo ndi kuchepa kwa magazi (monga kuchepa kwa magazi m'thupi chifukwa cha matenda osatha).
- Ngati muli ndi nkhawa iliyonse yokhudza kutopa kosalekeza, kufooka, kapena kuchepa kwa magazi m'thupi, nthawi zonse funsani dokotala musanapange chisankho chilichonse nokha . Dokotala yekha ndi amene angayese mayeso ofunikira kuti apeze chomwe chikuyambitsa vutoli ndikupereka chithandizo choyenera.
💬 Comments (0)
No comments yet. Be the first to share your thoughts here.
Add Your Comment