Lab Invest:糖尿病视网膜病变中的血管变化

2019-05-31 不详 网络

加利福尼亚大学圣巴巴拉分校干细胞生物学与工程中心的Toh H等人近日在Lab Invest杂志上发表了一篇研究论文,他们利用动物模型,研究了糖尿病过程中视网膜细胞的动态变化过程。

加利福尼亚大学圣巴巴拉分校干细胞生物学与工程中心的Toh H等人近日在Lab Invest杂志上发表了一篇研究论文,他们利用动物模型,研究了糖尿病过程中视网膜细胞的动态变化过程。

糖尿病性视网膜病变是糖尿病最常见的微血管并发症,并且是失明的主要原因。但由于缺乏准确的动物模型,对疾病发病机理的理解还不是很清楚。在这里,他们探讨了对碳水化合物敏感的2型糖尿病模型尼罗河大鼠(Arvicanthis niloticus)的视网膜细胞的动态变化。

尼罗大鼠的糖尿病模型研究显示,早期视网膜变化主要包括毛细血管的增加和周围细胞的丢失,其与糖尿病的持续时间呈现线性相关特征。这些血管变化发生在小胶质细胞浸润的情况下,但有趣的是并没有视网膜神经节细胞损失。在长时间的遭受糖尿病后,尼罗大鼠还表现出在人类病症中常见的一系列视网膜病变,包括血管渗漏、非灌注毛细血管和新血管的形成。

他们的研究记录了糖尿病尼罗大鼠视网膜病变的程度和发生发展过程,以及观察到的与人类糖尿病视网膜病变非常相似的特征。这表明该模型在鉴定新的治疗策略方面具有重要价值。

原文出处:

Toh, H., et al., Vascular changes in diabetic retinopathy-a longitudinal study in the Nile rat. Lab Invest, 2019.

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    2019-06-02 zutt
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    2019-06-01 misszhang

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