کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1923745 1048911 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Obesity-related dysfunction of the aorta and prevention by melatonin treatment in ob/ob mice
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Obesity-related dysfunction of the aorta and prevention by melatonin treatment in ob/ob mice
چکیده انگلیسی

In this study, we hypothesized that melatonin administration can minimize alterations in aorta morphology in an animal model of obesity (ob/ob mice). The animals were divided into four groups: (i) control lean mice, (ii) control lean mice treated with melatonin, (iii) ob/ob mice and (iv) ob/ob mice treated with melatonin. The synthetic melatonin was dissolved in 1% ethanol and added to the drinking water from postnatal week 5–13 at a final dose of 100 mg/kg body weight/day. Compared with the obese mice, melatonin intake was associated with a significant decrease in body weight and water consumption. Histological analysis showed that the aortic wall of ob/ob mice had a high Tunica media/lumen ratio and that the elastic fibers in the media layer appeared disrupted and degraded. Moreover, the aorta of ob/ob mice displayed a higher degree of collagen accumulation in the Tunica media compared to the normal aorta. The aorta of ob/ob mice treated with melatonin had a lower Tunica media/lumen ratio and collagen accumulation in comparison with untreated ob/ob mice. Our results showed that whereas melatonin had no apparent histological effects on the aorta in lean mice with normal weight, its administration in ob/ob mice can lead to a reduction in body weight and can ameliorate aorta histopathological dysfunction. This experimental study indicates an apparent protective role for melatonin on the aorta in obesity and melatonin could possibly be an effective tool in the management of obesity-related vascular complications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Histochemica - Volume 115, Issue 8, October 2013, Pages 783–788
نویسندگان
, , , , , ,