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- W1551147943 abstract "Understanding vascular pathologies requires insight in structure and function, and, hence, an imaging technique combining subcellular resolution, large penetration depth, and optical sectioning. We evaluated applicability of twophoton microscopy (TPLSM) in large elastic and small muscular arteries under physiological conditions. Elastic (carotid) and muscular (uterine, mesenteric) arteries of C57BL/6 mice were mounted in a perfusion chamber. TPLSM was used to assess viability of arteries and to visualize structural components elastin, collagen, nuclei, and endothelial glycocalyx. Functionality was determined using diameter changes in response to noradrenaline and acetylcholine. Viability and functionality were maintained up to 4 hours, enabling assessment of structure-function relationships. Structural vessel wall components differed between elastic and muscular arteries: size (1.3 vs. 2.1 μm) and density (0.045 vs. 0.57 per (100 μm)) of internal elastic lamina fenestrae, smooth muscle cell density (3.50 vs. 1.53 per (100 μm)), number of elastic laminae (3 vs. 2), and adventitial collagen structure (tortuous vs. straight). Endothelial glycocalyx in elastic arteries was 4.5 μm thick, covering 66 % of endothelial surface. TPLSM enables visualization and quantification of subcellular structures in vital and functional elastic and muscular murine arteries, allowing unraveling of structure-function relationships in healthy and diseased arteries. TPLSM of Vital Murine Arteries" @default.
- W1551147943 created "2016-06-24" @default.
- W1551147943 creator A5049105192 @default.
- W1551147943 date "2021-08-23" @default.
- W1551147943 modified "2023-09-25" @default.
- W1551147943 title "Vital imaging of large arteries using two-photon laser scanning microscopy : focus on the arterial wall" @default.
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