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It also plays a crucial role in collagen production, contributing to improved skin firmness and elasticity

& Roberts, C.T., Jr

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Source: The blood-brain barrier (BBB) is composed of specialized components called neurovascular units or NVUs, which include: Endothelial cells , which line the barrier Astrocytic endfeet , which are part of nerve cells that envelope the blood vessels Basement membrane that lines the epithelial cells Pericytes that provide structural support to the blood vessels, but may also control BBB development and permeability [1] Tight junctions seal the gap between endothelial cells in the same layer