Ate era owulira ng’okooye buli kiseera? Owulira nga tolina maanyi? Mpozzi omusawo wo atunuulidde lipoota y'omusaayi n'agamba nti "obutaba na kyuma" oba "anemia". Kino kizibu abantu bangi mu ggwanga lyaffe kye balina. Kale, omanyi ani afuga ekintu kino ekikulu ekiyitibwa ekyuma mu mubiri gwaffe? Waliwo "boss" omutuufu ku lwayo. Ayitibwa Hepcidin . Oyinza n’okuwulira erinnya lino. Naye omulimu gwe gukola okukuuma omubiri gwaffe nga mulamu si mutono. Ka twogere leero ku "iron boss" ono mu mubiri gwaffe.
Mu ngeri ennyangu, Hepcidin ono y’ani?
Hepcidin busimu obukolebwa ekibumba kyaffe ne bufuluma mu musaayi. Obusimu bulinga ababaka abafuga buli mulimu mu mubiri gwaffe. Kale omulimu omukulu ogw’omubaka ayitibwa hepcidin kwe kufuga engeri omubiri gwaffe gye gukozesaamu ekyuma. Okubeera omutuufu, y’asalawo ekyuma ekiwera omubiri kye gwetaaga, obungi bwe gwetaaga okutereka, ne ddi lwe gwetaaga okukozesa ekyuma ekyo. Eno y'ensonga lwaki abantu abamu bayita hepcidin "Master Iron Regulator".
Kale lwaki ekyuma kikulu nnyo gye tuli?
Teebereza nti waliwo empeereza y’okutuusa ebintu etambuza omukka gwa oxygen mu mibiri gyaffe gyonna. Mmotoka z'empeereza eyo ey'okutuusa abantu ze butoffaali obumyufu . Omuntu apakira omukka gwa oxygen munda mu mmotoka ezo ye puloteyina eyitibwa hemoglobin . Kale ekyuma kirungo kikulu nnyo okukola hemoglobin eno. Awatali kyuma, hemoglobin tesobola kukolebwa. Olwo obutoffaali obumyufu tebusobola kutambuza mukka gwa oxygen. Awo we tukoowa ne tufuna obuzibu mu kussa.
Tekikoma awo, n’ekyuma kyetaagisa okukola puloteyina ya myoglobin, egaba omukka gwa oxygen mu binywa byaffe n’omutima.
Mu ngeri ennyangu, ekyuma gwe mutima gw’enkola etambuza omukka gwa oxygen oguwa obutoffaali bw’omubiri gwaffe obulamu. Kale kikulu nnyo okukuuma omutindo gw’ekyuma kino nga guli mu bbalansi. Singa ekyuma tekimala, endwadde nga okukendeera kw’omusaayi olw’obutaba na kyuma zijja. Singa wabaawo ekyuma ekisusse, kiyinza okufuuka obutwa eri omubiri gwaffe n’okwonoona ebitundu by’omubiri. Okukuuma bbalansi eyo gwe mulimu omukulu ogwa hepcidin.
Hepcidin efuga etya ekyuma kino?
Eno nkola ya kyewuunyo nnyo. Tufuna ekyuma mu mmere gye tulya (ennyama, ebyennyanja, enva endiirwa, entangawuuzi). Naye obutafaananako minerals endala, emibiri gyaffe tegirina ngeri gye gifulumyamu kyuma ekisukkiridde. Okugeza, singa tuba ne sodium (omunnyo) omungi, ajja kufulumizibwa mu musulo. Naye ekyuma tekifuluma mangu bwe kityo.
N’olwekyo, kitegeeza okutereka ekyuma ekisukkiridde okukozesebwa oluvannyuma. Ekyuma kino kisinga kuterekebwa mu magumba gaffe , .Mu nnywanto n'ekibumba .
Wano hepcidin w’ajja mu nkola. Hepcidin ayingidde mu nkola eno ey’okuddukanya ekyuma mu ngeri ssatu enkulu:
1. Afuga okuyingira kw’ekyuma okuva mu mmere: Emmere gye tulya bw’egenda mu kyenda kyaffe ekitono, obutoffaali obuli eyo bunyiga ekyuma mu musaayi. Hepcidin y’asalawo obungi bw’ekyuma ekifulumizibwa mu musaayi n’obungi bw’ekiterekeddwa.
2. Addamu okukola ekyuma okuva mu butoffaali obumyufu obukadde: Obulamu bw’obutoffaali bwaffe obumyufu buba bwa nnaku nga 120. Ekiseera ekyo bwe kiggwaako, macrophages , ekika ky’obutoffaali obweru (nga ‘cleaning crew’ y’omubiri), zisaanyaawo obutoffaali buno obumyufu obukadde. Naye bwe bakikola, bakwata ne batereka ekyuma eky’omuwendo mu byo. Kale, hepcidin y’esalawo oba ekyuma kino ekiterekeddwa kirina okuddizibwa obutoffaali obumyufu obupya obutondeddwa, oba kikuumibwe mu tterekero okumala akaseera okusingawo.
3. Afuga okufulumya ekyuma ekiterekeddwa mu bifo ng’ekibumba: Hepcidin y’etegeeza omubiri oba okufulumya ekyuma ekiterekeddwa mu butoffaali bw’ekibumba ( hepatocytes ) n’obutoffaali bw’ekyenda ekitono ( enterocytes ) mu musaayi oba nedda mu musaayi nga kyetaagisa.
Kino kikola kitya ddala?
Kino okusobola okukitegeera, tulina okumanya omuntu omulala. Omuntu oyo ye puloteyina eyitibwa ferroportin . Kilowoozeeko ng’ekisenge omuterekebwa ebintu mu kasenge omuterekebwa ekyuma. Ferroportin ye "mulyango oguleka ekyuma okufuluma" mu kisenge ekyo eky'okuterekamu. Ekyuma okusobola okuyingira mu musaayi, omulyango guno gulina okuggulwawo.
Hepcidin ky’ekola kwe kufuga ekikomera kino.
- Omuwendo gwa hepcidin mu mubiri bwe gweyongera , hepcidin yeekwata ku mulyango oguyitibwa ferroportin n’aguggalawo . Olwo, ekyuma ekiri munda mu butoffaali tekisobola kuyingira mu musaayi. Okunyiga ekyuma kukendeera.
- Emiwendo gya hepcidin mu mubiri bwe gikendeera , omulyango gwa ferroportin teguziyizibwa. Kale omulyango guggule . Ekyuma ekiri munda mu butoffaali kyangu okuyingira mu musaayi. Okunyiga ekyuma kweyongera.
Biki ebivaako enkyukakyuka mu muwendo gwa hepcidin?
Emibiri gyaffe gya magezi nnyo. Ziyongera oba zikendeeza ku muwendo gwa hepcidin okusinziira ku byetaago byabwe mu kiseera kyonna. Waliwo ebintu ebikulu ebiwerako ebikosa kino.
| Ensonga ekwata ku nsonga | Effect ku Hepcidin n'Ebivaamu |
|---|---|
| Omuwendo gwonna ogw’ekyuma mu mubiri | Singa ekyuma mu mubiri kiba kinene , omubiri gukola hepcidin omungi . Ekyo kigiremesa okunyiga ekyuma ekiwera. Singa ekyuma kiba kitono , omubiri gukola hepcidin mutono . Ekyo kiggulawo enzigi ekyuma ekiwera okuyingizibwa. |
| Okukola obutoffaali obumyufu | Omubiri bwe gwetaaga okukola obutoffaali obumyufu obupya bungi (okugeza, oluvannyuma lw’okuvaamu omusaayi), gwetaaga ekyuma ekinene okukola hemoglobin. Olwo omubiri ne gukendeeza ku muwendo gwa hepcidin. Kino kifulumya ekyuma ekiterekeddwa era kiyamba okukola obutoffaali obupya. |
| Omukka gwa oxygen omutono (Hypoxia) . | Omuwendo gwa oxygen ogutuuka mu bitundu by’omubiri bwe gukendeera, omubiri gulowooza nti gwetaaga okukola ebitambuza omukka gwa oxygen (obutoffaali obumyufu) obusingawo. Okuva kino bwe kyetaagisa ekyuma, kikendeeza ku muwendo gwa hepcidin ne kiggulawo emiryango gy’ekyuma. |
| Obulwadde oba Okuzimba | Kino kikulu nnyo. Obuwuka (e.g. bacteria) bwe buyingira mu mubiri gwaffe, obuwuka bwetaaga ekyuma okukula. Kale omubiri gwaffe ogw’amagezi gulemesa obuwuka obutafuna kyuma. Kino okukikola, omubiri gwongera mangu omuwendo gwa hepcidin. Olwo emiryango egy’ekyuma ne giggalawo, era ekyuma kyonna ne kikwekebwa munda mu busenge. Obuwuuka bunafuwa nga tebulina kyuma. |
Kiki ekibaawo ng’emiwendo gya hepcidin si gya bulijjo?
Singa omulimu gwa iron regulator eno gugenda bubi katono, kiyinza okuvaako obuzibu obw’amaanyi. Singa hepcidin eba wansi nnyo, omubiri gujja kuba n’ekyuma ekisusse (Iron Overload). Singa emiwendo gya hepcidin giba mingi nnyo, omubiri gujja kuba n’ekyuma ekitono ennyo (Iron Deficiency).
| Kakwakkulizo | Kiki ekibaawo, mu ngeri ennyangu? |
|---|---|
| Embeera eziva ku bungi bwa hepcidin obutono (ekyuma ekisusse) . | |
| Obulwadde bwa Hemochromatosis obw’ensikirano | Buno bulwadde bwa buzaale. Mu mbeera eno, ekibumba tekisobola kukola hepcidin emala. N’ekyavaamu, emiryango gy’ekyuma (ferroportin) bulijjo giba miggule. Omubiri gunyiga ekyuma ekiwera okusinga bwe kyetaaga ne gukiteeka mu bitundu by’omubiri ng’omutima, ekibumba n’olubuto ne kibwonoona. |
| Obulwadde bw’okubulwa omusaayi obuyitibwa Iron-loading anemias | Mu bika ebimu eby’okubulwa omusaayi, mu butuufu wabaawo ekyuma ekisusse. Obulema mu nkola y’okukola obutoffaali obumyufu bukendeeza ku kukola hepcidin ekivaako ekyuma okweyongera okuyingira mu musaayi. |
| Obulwadde bw’ekibumba C | Akawuka kano kwonoona ekibumba, ne kikendeeza ku busobozi bwakyo okukola hepcidin. |
| Ssukaali ow’ekika eky’okubiri | Okunoonyereza okumu kulaga nti abantu abalina ssukaali bayinza okuba nga bakendedde ku muwendo gwa hepcidin ate nga n’ekyuma kyeyongera. |
| Embeera eziva ku hepcidin okweyongera (obutaba na kyuma) . | |
| Okukendeera kw’omusaayi mu bulwadde obutawona (ACD) . | Eno mbeera ya bulijjo nnyo. Omuntu bw’aba n’obulwadde obw’ekiseera ekiwanvu (e.g. obulwadde bw’ekibumba, kookolo, obulwadde bwa Crohn), wabaawo okuzimba buli kiseera mu mubiri. Okuzimba kuno kuleetera hepcidin mu mubiri okweyongera . Olwo emiryango egy’ekyuma ne giggalawo. Newankubadde mu maduuka g’omubiri mulimu ekyuma, tebisobola kukozesebwa. Kino kireeta okukendeeza ku musaayi. |
| Yinfekisoni ezitawona | Yinfekisoni ezimala ebbanga eddene nazo zisobola okwongera okuzimba mu mubiri, okwongera ku muwendo gwa hepcidin, n’okuleeta ebbula ly’ekyuma. |
N’ekisembayo, hepcidin busimu bukulu nnyo obwetaagisa okukuuma bbalansi y’ekyuma mu mubiri gwaffe. Nga eggalawo emiryango gy’ekyuma n’okufuga ekyuma, mu ngeri etali ya butereevu efuga okukola kwa hemoglobin n’obutoffaali obumyufu, awamu n’okutambuza omukka gwa oxygen mu mubiri gwonna. Hepcidin era atukuuma okuva ku kwonooneka okw’amaanyi obuyinza okubaawo singa ekyuma ekisusse kiyingira mu mubiri.
Obubaka Obutwala Awaka
- Hepcidin ye hormone enkulu ekolebwa ekibumba kyaffe efugira ekyuma mu mubiri.
- Kikola nga kiziyiza "omulyango" ogutambuza ekyuma oguyitibwa ferroportin. Hepcidin bw’aba mungi, okunyiga ekyuma kukendeera, ate hepcidin bw’aba mutono, okunyiga ekyuma kweyongera.
- Emiwendo gya Hepcidin gyawukana okusinziira ku bintu ng’ekyuma ekinene mu mubiri, obwetaavu bw’obutoffaali obumyufu, omukka gwa oxygen, ne yinfekisoni.
- Emiwendo gya hepcidin emitono mu ngeri etaali ya bulijjo giyinza okuvaako ekyuma ekisusse n’okwonooneka kw’ebitundu by’omubiri (e.g., hemochromatosis), ate emiwendo egy’amaanyi mu ngeri etaali gya bulijjo giyinza okuvaako ebbula ly’ekyuma n’okukendeeza ku musaayi (e.g., anemia of chronic disease).
- Bw’oba olina ekikweraliikiriza ku bukoowu obutasalako, okufuuka omuddugavu oba okukendeera kw’omusaayi, bulijjo weebuuze ku musawo wo nga tonnaba kusalawo kintu kyonna ku bubwo . Omusawo yekka y’asobola okukola ebigezo ebyetaagisa okuzuula ekituufu ekivaako n’okumuwa obujjanjabi obutuufu.
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