Ọgwụgwọ Endothelial na Ọrịa Ọbara Ọbara

Ọtụtụ afọ gara aga na nkwurịta okwu, ọkà okwu ahụ gwara ndị na-eje ozi "Gịnị Bụ Mmetụta Ọbara Dị Elu?" Dibia dibia na ndi na-ege nti zara azịza ya site n'igosi ihe bara uru nke 140/90 mmHg.

Ọ dịghị nke ọ bụla n'ime ha bụ azịza nke onye ahụ nọ na-achọ.

"Ọrịa elu," ka o kwuru, "bụ nkwụsịtụ nke endothelium ." Isi ihe na-enye aka n'ịgwọ ọbara mgbali elu, ka o kwuru, na-emeso nkwụsịtụ endothelial.

The Endothelium

Ọbara dị n'ime ahụ gị abụghị naanị arịa dị mfe nke ọbara na-asọ. Ha dị ọtụtụ. Ha nwere ọtụtụ ọkwa na ọkwa dị n'ime ime mmiri bụ nke a na-akpọ endothelium. Chee echiche banyere oyi akwa a dika obodo nye onwe ya. E nwere ọtụtụ ihe na-aga n'ihu. Endothelium bụ maka ọkpụkpụ ọbara na-ejikọta kamakwa na-enyere aka ịchịkwa ọbara mgbali. Ọ na-emepụta ọtụtụ bekee nke na-achịkwa otú otu ọbara si efepụ ma ọ bụ na-agbawa (na-emechi). Endothelin bụ ihe atụ nke onye ogbugbo nke mpaghara nke oyi akwa a rụrụ nke na-akwalite mgbagwoju anya, ma ọ bụ na-egbukepụ ụgbọ mmiri. Nitric oxide bụ onye mgbasa ozi mpaghara nke na-akwalite bilada nke arịa. N'okpuru endothelial, enwere agha mgbe nile n'etiti ihe ndị na-akwalite vasoconstriction na ndị na-akwalite vasodilation.

A na-eche na enweghị aha na agha a nke na-eme ka ọ dị njọ na-eme ka ụbụrụ ọbara dị elu.

N'elu ọkwa nke cell, enweghị ike ịme ka ụba nsogbu nke oxidative gaa na cell, ịmepụta oxygen na-egbu egbu (ma ọ bụ radicals free) nke gafeworo oge nwere ike imebi mgbidi ọbara arịa nke na-ebelata ike ya. Ọrịa Endothelial na-atụnye aka na mmepe nke ihe nrụpụta ihe n'ime ogidi ọbara.

Ihe ndị na-eme ka adighi mma na Endothelial Dysfunction

E nwere ọtụtụ ihe nwere ike ịme ka mmepe nke nkwụsị nke endothelium:

Ọgwụgwọ

Nke a bụ echiche m gbasara nke a: ọgwụ ọgwụ edere ọgwụ, ebe ha nwere ike ịkwụsị ọbara mgbali elu, nwere ike ọ dị irè ma ọ bụrụ na ị nwere endothelum nke na-adịghị ahụ ike. Chee echiche banyere ya: ndị nchịkọta calcium na ndị na-agụnye mkpụrụ akwụkwọ alpha bụ ọgwụgwọ nke na-arụ ọrụ mgbatị ọbara ha na-ebute site na ịrụ ọrụ na ndị nabatara na arịa ọbara iji mee ka dilata nke arịa ọbara. Ọ bụrụ na nkwonkwo ọrịa gị adịghị ike, olee otú ị ga-esi dị irè na ọgwụ ndị a ga-abụ?

Enwere ihe ụfọdụ ị ga - eme iji melite ahụike nke arịa ọbara gị ma jikwa ọbara mgbali elu: