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頁籤選單縮合
題 名 | Hyperbaric Oxygen Therapy Ameliorates the Blood-Retinal Barrier Breakdown in Diabetic Retinopathy=高壓氧治療改善糖尿病視網膜病變之血視網膜障壁破壞 |
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作 者 | 陳建同; 梁知本; 周秉義; 張正忠; 黃崑崙; | 書刊名 | Journal of Medical Sciences |
卷 期 | 24:2 2004.04[民93.04] |
頁 次 | 頁77-83 |
分類號 | 416.746 |
關鍵詞 | 高壓氧治療; 糖尿病; 視網膜病變; 血視網膜障壁; Blood-retinal barrier; Diabetic retinopathy; Hyperbaric oxygen therapy; |
語 文 | 英文(English) |
英文摘要 | Background: To study the effect of hyperbaric oxygen (HBO) therapy on diabetic retinopathy in a streptozotocin-induced diabetic rat model. Methods: Sprague-Dawley albino male rats were divided into three groups. The three groups were as follow: (1) nondiabetic control group (non-DM control), (2) diabetic control group (DM control), and (3) diabetic rats receiving hyperbaric oxygen therapy (DM HBO). Rats in DM HBO group were incubated in an oxygen monoplace chamber. The hyperbaric oxygen condition was set at 2.5 atmospheres and 100% oxygen. The duration of a single HBO treatment was 90 minutes. Rats in DM HBO groups received HBO 3 times per week for 3 months. Retinal vascular permeability was assessed by measuring FITC-labeled bovine albumin and retinal Evans blue leakage into the retina. Results: We found that the retinal parenchyma showed prominent thickening but not statistically significant in rats with DM, corresponding to the retinal edema, compared with the control and DM HBO groups. FITC relative fluorescence intensity (Mean±SE) in normal control animals, diabetic animals, and HBO-treated diabetic animals was 356±47, 865±78, and 518±49, respectively, demonstrating significant difference between the means of diabetic and HBO-treated diabetic animals, and between means of control and diabetic animals (n=8, P<0.05). Retinal Evans blue leakage in control animals, diabetic animals, and HBO-treated diabetic animals was 7.6±2.9, 18.5±4.2 and 10.2±3.1μl plasma×g retinal dry weight¯¹h¯¹, respectively, demonstrating significant difference between the means of diabetic and HBO-treated diabetic animals, and between means of control and diabetic animals (n=8, P<0.05). Conclusions: HBO therapy may diminish the extent of the increased blood-retinal barrier breakdown in diabetic animals. |
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