کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5552535 1557947 2017 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Administration of antioxidant compounds affects the lens chaperone activity and prevents the onset of cataracts
ترجمه فارسی عنوان
اعمال ترکیبات آنتیاکسیدان بر فعالیت لنز چپرون تاثیر می گذارد و مانع از ایجاد کاتاراکت می شود
موضوعات مرتبط
علوم پزشکی و سلامت پزشکی و دندانپزشکی تومور شناسی
چکیده انگلیسی


- Antioxidant compounds can maintain the lens chaperone activity.
- Coffee brew can maintain the lens chaperone activity.
- Irrespective of oil- or water-soluble, antioxidant prevents cataract formation.
- The chaperone activity may be a new therapeutic target to treat the cataract.

To prevent lens opacification and cataract formation, the lens contains α-crystallin, which has been shown to function as a molecular chaperone that maintains the correct folding of other proteins. Oxidative stress is known to be an important factor in the initiation and progression of a cataract. So far, several antioxidant compounds have been reported to prevent cataracts in vivo and in vitro. This stress also triggers α-crystallin modifications and alters its chaperone activity. However, few studies have examined the relationship between the consumption of antioxidant compounds and lens chaperone activity. To elucidate the effect of antioxidants on lens chaperone activity, antioxidants were administered to a selenite-induced cataract model of rats. The chaperone activity in lens water-soluble fraction was measured using aldehyde dehydrogenase. All antioxidant treatment groups, except decaffeinated coffee treatment, had less severe central opacities and lower stage cataracts than control groups. The chaperone activity was weaker in lens of selenite cataract rats, but antioxidant compounds and coffee treatment can prevent the chaperone activity decreasing, but not decaffeinated coffee. These results suggested that the treatment with antioxidant compounds could prevent cataract formation by the maintenance of the chaperone activity in water-soluble lens proteins. Thus, this study describes the development of an anticataract drug target for lens chaperone activity.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biomedicine & Pharmacotherapy - Volume 95, November 2017, Pages 137-143
نویسندگان
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