醫學六：80題 ( 包括麻醉科,眼科,耳鼻喉科,婦產科,復健科等科目及其及相關臨床實例與醫學倫理 )題庫下載題庫

Retinal vasculature in diabetic retinopathy. Pericytes are present around blood vessels in the normal retina. Pericyte dropout is one of the major hallmarks of diabetic retinopathy. Park and colleagues now suggest that pericytes are essential in the formation and maturation of blood-retinal-barrier at the postnatal stage through active recruitment of pericytes onto the growing retinal vessels. Nevertheless, pericytes are not indispensable in the adult stable retinal blood vessels; and their selective depletion did not lead to a phenotype similar to diabetic retinopathy. Future studies may reve...
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Retinal vasculature in diabetic retinopathy. Pericytes are present around blood vessels in the normal retina. Pericyte dropout is one of the major hallmarks of diabetic retinopathy. Park and colleagues now suggest that pericytes are essential in the formation and maturation of blood-retinal-barrier at the postnatal stage through active recruitment of pericytes onto the growing retinal vessels. Nevertheless, pericytes are not indispensable in the adult stable retinal blood vessels; and their selective depletion did not lead to a phenotype similar to diabetic retinopathy. Future studies may reveal other role of retinal pericytes in much greater detail.