Twese tuzi ko amaraso atembera mu mibiri yacu, si byo se? Aya maraso ntanyura mu miyoboro y’amaraso gusa, imeze nk’imiyoboro y’amazi. None se wigeze wibaza uko imbere muri iyi miyoboro isa? Uyu munsi tugiye kuvuga ku ruhererekane rutangaje kandi rworoshye cyane rw’uturemangingo turi imbere muri iyo miyoboro. Tubyita 'endothelium' . Iyi si uruhererekane gusa, ni sisitemu y’uturemangingo duto dukora imirimo myinshi y’ingenzi igira ingaruka ku buzima bw’umubiri wawe wose.
Mu magambo make, iyi endothelium ni iki?
Tekereza ko buri mutsi w'amaraso mu mubiri wawe ufite agace gato cyane kandi koroshye, gafite ubunini bw'ingirabuzimafatizo imwe gusa, nk'igishushanyo mbonera. Iyo ni endothelium. Igizwe n'ubwoko bwihariye bw'ingirabuzimafatizo zitwa endothelium.
Iyi endothelium iboneka muri izi ngingo mu mubiri wawe:
- Imitsi: Imitsi minini itwara amaraso mu mutima ikayajyana mu bindi bice by'umubiri.
- Imitsi: Imitsi itwara amaraso mu mubiri ikayajyana mu mutima.
- Imitsi mito y'amaraso: Imitsi mito cyane y'amaraso.
- Imiyoboro ya lymphatic: Imiyoboro iri mu mubiri wacu.
Si urukuta gusa. Ikora nk'ishingiro rikomeye ryo guhanahana amakuru n'intungamubiri hagati y'amaraso yawe n'izindi ngingo z'umubiri wawe. Ni ingenzi cyane, abahanga muri siyansi ubu babona ko endothelium ari imwe mu ngingo nini mu mibiri yacu. Yego, ni urugingo, kimwe n'umwijima n'umutima.
Ni iyihe serivisi endothelium itanga ku mubiri wacu?
Akazi gakorwa n'uru rugingo ruto rw'uturemangingo karatangaje. Reka turebe zimwe mu nshingano z'ingenzi.
Igenzura uburyo imiyoboro y'amaraso ifungana kandi ikagabanuka
Imitsi yawe y'amaraso igomba kwaguka (vasodilati) iyo bikenewe, kandi igafunga (vasoconstrict) iyo bikenewe. Ibi bigenzurwa na endothelium.
Tekereza kuri ubu buryo.
- Iyo ukora imyitozo ngororamubiri: Imitsi yawe ikenera amaraso menshi na ogisijeni. Endothelium yohereza ibimenyetso kugira ngo imiyoboro y'amaraso muri ako gace yongere kwaguka, bigatuma amaraso atembera neza.
- Ku munsi ukonje cyane: Urashaka kubungabunga ubushyuhe bw'umubiri wawe. Ibi bituma imiyoboro y'amaraso mu maboko no mu maguru yawe igabanuka gato, bigafasha amaraso gukomeza gutembera mu ngingo zawe z'ingenzi.
Muri ubu buryo, bifasha cyane mu kugenzura umuvuduko w'amaraso no kwemeza ko ingingo zose zibona amaraso akenewe.
Icunga ingano y'amazi ava mu maraso ajya mu ngingo
Endothelium ni nk'akayunguruzo. Ituma intungamubiri na ogisijeni biva mu maraso binyura mu ngingo, kandi igakora nk'urukingo rurinda ibintu byangiza n'uburozi kwinjira mu maraso. Ariko, iyo ufite ubwandu, uturemangingo tw'ubudahangarwa bw'umubiri tugomba kuva mu maraso tukajya aho ubwandu buri. Hanyuma endothelium ubwayo itunganya inzira kugira ngo utwo turemangingo tugereyo.
Irinda kuvura amaraso (Trombosis)
Ubusanzwe, kuzura kw'amaraso mu miyoboro y'amaraso ni bibi cyane, sibyo? Bishobora gutera indwara zikomeye nko kurwara umutima no gucika imitsi. Endothelium nziza isohora imiti idasanzwe nka nitric oxide, ituma amaraso agumana amazi kandi ikarinda kuzura amaraso bitari ngombwa.
Endothelium nini gute? Iherereye he mu mubiri wacu?
Iyo umuntu akubajije aho umutima wawe uri, werekeza ku gituza cyawe. Iyo umuntu akubajije aho ubwonko bwawe buri, werekeza ku mutwe wawe. Ariko iyo umuntu akubajije aho endothelium iri, werekeza ku gice icyo ari cyo cyose cy'umubiri wawe. Birakwirakwiriye cyane mu mubiri wose.
Tekereza gato, iyo imitsi yose y'amaraso mu muntu usanzwe ishyirwa ku ruhande rumwe, yagira uburebure bwa kilometero 100.000 ! Ibyo birahagije cyane kugira ngo umuntu azenguruke isi inshuro ebyiri. Kandi ubu burebure bwose butwikiriwe n'iyi endothelium. Iyo ufashe ubuso bwayo, ubusanzwe iba nini kurusha ibibuga byinshi bya tennis. Nanone, iyi sisitemu yose igizwe n'uturemangingo tw'amaraso turenga tiriyari (1.000.000.000.000).
Ikibazo cyo kudakora neza kw'imyanya y'imbere ni iki?
Iki ni cyo gice cy'ingenzi twese tugomba kwitaho. 'Kudakora neza kw'imyanya y'imbere' bivuze ko uturemangingo tw'imbere tw'imbere twangiritse kandi tudashobora gukora akazi katwo neza. Ni nk'aho kaburimbo iri ku muhanda yacitse, bigatuma imodoka zidashobora kugenda.
Uku gucika intege kwa endothelium ni intambwe ya mbere mu ndwara iteye ubwoba yitwa atherosclerosis , aho ibinure byirundanya mu nkuta z'imitsi bigafunga imiyoboro y'amaraso.
| Abanzi b'ingenzi bangiza endothelium | Bigenda bite kuri byo? |
|---|---|
| Umuvuduko ukabije w'amaraso (Hypertension) | Iyo amaraso atemba ku muvuduko ukabije, uturemangingo tw’amaraso turangirika, nk’uko amazi anyura mu muyoboro ashobora gushwanyaguza imbere. |
| Kolesteroli nyinshi (Hyperlipidemia) | Cyane cyane iyo cholesterol "mbi" (LDL) yiyongereye, itangira gufata kuri izi nkuta zangiritse z'inyuma. |
| Diyabete (Diabete Mellitus) | Isukari nyinshi mu maraso yangiza uturemangingo tw’inyuma tw’umubiri mu buryo butaziguye. |
| Kunywa itabi | Ibihumbi by'imiti y'uburozi mu mwotsi w'itabi byibasira endothelium kandi bigahungabanya burundu imikorere yayo. |
| Kudakora imyitozo ngororamubiri n'umubyibuho ukabije | Kubyimba mu mubiri bidakira biterwa no kutagira imyitozo ngororamubiri n'umubyibuho ukabije byangiza endothelium. |
| Indwara zikomeye | Mu ndwara zikomeye nka COVID-19 n'indwara nka sepsis, endothelium ishobora kwangirika cyane. |
Bigenda bite iyo endothelium ubwayo icitse intege?
Iyo endothelium yangiritse, ubuso bwayo bworoshye buba bubi. Hanyuma cholesterol mbi (LDL) itangira kwirundanya muri utwo duce dukomeye. Mu gusubiza, uturemangingo tw’ubudahangarwa bw’umubiri turaza tugakoranira aho. Ibi byose birarundanya, kandi uko igihe kigenda gihita, bigakora 'urukurikirane rw'ibinure' (plaque) .
Uko uru ruhererekane rw'ibinure rukura, umuyoboro w'amaraso urushaho kugabanuka uturutse imbere. Ibi bituma amaraso atembera neza. Iyo umunsi umwe uru ruhererekane rw'ibinure ruturitse, amaraso ashobora kuzura aho hantu agafunga burundu umuyoboro w'amaraso.
Kubwibyo, umuntu ufite endothelium idakora neza ashobora guhura n'ibintu bikurikira bishobora gutera ibyago:
- Indwara y'umutima
- Igisebe cy'imitsi
- Indwara y'imitsi itera umutima
- Indwara y'imitsi yo mu mpande
- Indwara y'impyiko
- Ubudahangarwa bwa insuline
None se twakora iki kugira ngo iyi endothelium ikomeze kuba nzima?
Inkuru nziza ni uko dushobora kurinda iyi endothelium y'agaciro duhindura imibereho yacu.
Muri make, imibiri yacu ikora ubwoko bw'udukoko twitwa 'free radicals' . Ibi byangiza uturemangingo twacu two mu nda. Ibintu byiza bifasha mu gukuraho utwo dukoko twitwa 'antioxydants' . Rero icyo tugomba gukora ni ukugabanya ikorwa rya free radicals turya ibiryo bikungahaye kuri antioxydants.
Ibintu byiza byo gukora
Kurya ibiryo byinshi bikungahaye kuri antioxydants.
- Imboga z'icyatsi kibisi: epinari, kale, imboga zo mu bwoko bwa collard.
- Imbuto n'imboga bifite amabara meza: inyanya, karoti, beterave, urusenda, amacunga, imbuto z'umuhondo.
- Ibinyampeke byuzuye: umuceri w'umukara, ingano, n'amasaka.
- Amavuta meza: amavuta ya elayo, avoka.
Ushobora kuvugana na muganga wawe ku bijyanye n'ubu bwoko bw'indyo (urugero, indyo yo mu nyanja ya Mediterane) maze ugahindura ibikunogeye.
Ibintu bibi byo kwirinda
Ibi bintu byongera uturemangingo tw’ubuntu mu mubiri wawe.
- Kunywa itabi: Uyu ni umwanzi wa mbere. Reka uyu munsi.
- Ibiryo birimo isukari nyinshi n'ibintu biryoshye: Ibi byongera ububyimbirwe mu mubiri.
- Ibiryo byatunganyijwe: Ibi bishobora kuba birimo ibinure n'imiti byangiza umubiri.
- Guhangayika cyane.
- Kutabona ibitotsi bihagije.
Nanone, imyitozo ngororamubiri ihoraho ni ingenzi cyane ku buzima bw'inyuma. Iyo ukora imyitozo ngororamubiri, umuvuduko wa nitrike oxide uriyongera, bigatuma imiyoboro y'amaraso yawe ikomeza kuba myiza. Ndetse n'ikintu cyoroshye nko kugenda n'amaguru iminota 30 ku munsi gishobora kugira itandukaniro rinini.
Niba usanzwe ufite indwara nk'umuvuduko ukabije w'amaraso, diyabete, cyangwa cholesterol, ni ngombwa gukurikiza neza gahunda yo kuvura ya muganga wawe . Intego y'iyi miti ni ukugenzura izi ndwara no kugabanya kwangirika kw'insinga z'amaraso mu mubiri wawe.
Ubutumwa bwo kujyana mu rugo
- Endothelium ni urwego rw'ingenzi rw'uturemangingo tutagaragara, ariko rufite imbaraga nyinshi, rugaragara imbere mu miyoboro y'amaraso yawe.
- Ubuzima bw'umutima wawe n'imitsi y'amaraso biterwa n'ubuzima bw'iyi endothelium.
- Umuvuduko ukabije w'amaraso, cholesterol nyinshi, diyabete, cyane cyane kunywa itabi ni byo banzi babyo.
- Ushobora kurinda uru rugingo rw'agaciro urya indyo yuzuye imboga n'imbuto nshya, no gukora imyitozo ngororamubiri buri gihe.
- Menya ubuzima bwawe, ujye wisuzumisha kwa muganga buri gihe, kandi niba ufite ikibazo cy’uburwayi, gana muganga wawe kandi ushake ubuvuzi bukwiye.
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