Qhov txawv ntawm microvascular thiab macrovascular yog dab tsi?

2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44

Teeb meem ntshav qab zib tau muab faib ua microvascular cov ntaub so ntswg (vim kev puas tsuaj rau cov hlab ntsha me) thiab macrovascular cov ntaub so ntswg (vim kev puas tsuaj rau cov hlab ntsha loj dua). Macrovascular teeb meem suav nrog kab mob plawv xws li mob plawv, mob hlab ntsha tawg thiab tsis txaus ntshav ntws mus rau txhais ceg.

Xav txog qhov no, kab mob microvascular thiab macrovascular yog dab tsi?

Ntshav qab zib microvascular cov ntaub so ntswg (koom nrog cov hlab ntsha me, xws li capillaries) thiab macrovascular cov ntaub so ntswg (koom nrog cov hlab ntsha loj, xws li cov hlab ntsha thiab cov leeg) teeb meem muaj cov yam ntxwv zoo sib xws.

Ib sab saum toj no, dab tsi ua rau mob microvascular thiab macrovascular teeb meem ntawm DM? Cov teeb meem mob feem ntau yog los ntawm kev puas tsuaj ntev rau cov hlab ntsha. Cov no teeb meem yog pawg raws li microvascular cov ntaub so ntswg vim hauv qab daus membrane tuab los yog macrovascular cov ntaub so ntswg vim yog qhov nrawm ntawm atherosclerosis. Qhov loj microvascular teeb meem yog mob ntshav qab zib retinopathy, nephropathy, thiab neuropathy.

Ntxiv mus, kab mob macrovascular yog dab tsi?

Macrovascular kab mob yog a kab mob ntawm cov hlab ntsha loj (macro) hauv lub cev. Nws yog ib qho kab mob ntawm cov hlab ntshav loj, suav nrog cov hlab ntsha hauv lub plawv, aorta, thiab cov hlab ntsha loj hauv lub hlwb thiab hauv caj dab. Qhov no qee zaum tshwm sim thaum tus neeg tau muaj ntshav qab zib rau lub sijhawm ntev.

Vim li cas ntshav qab zib ua rau mob macrovascular?

Cov macrovascular teeb meem ntawm mob ntshav qab zib tshwm sim los ntawm hyperglycemia, ntau dhau dawb fatty acid, thiab insulin tsis kam. Cov no ua nce oxidative kev nyuab siab, ua kom muaj protein kinase, thiab ua kom lub receptor rau qib siab glycation kawg cov khoom, yam uas ua rau endothelium.