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Influence of Age on Anticontractile Effect of Perivascular Adipose Tissue in Normotensive and Hypertensive Rats
المؤلفون المشاركون
المصدر
Oxidative Medicine and Cellular Longevity
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-8، 8ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-01-17
دولة النشر
مصر
عدد الصفحات
8
التخصصات الرئيسية
الملخص EN
Perivascular adipose tissue (PVAT) and its vasomodulatory effects play an important role in the physiology and pathophysiology of blood vessels.
Alterations in PVAT associated with reduction in its anticontractile influence are proven to contribute to vascular dysfunction in hypertension.
The aim of this study was to examine whether the changes in PVAT properties could participate in progression of vascular abnormalities in developing spontaneously hypertensive rats (SHR).
Normotensive Wistar-Kyoto (WKY) rats and SHR, both in 5th and in 12th week of age, were used.
Systolic blood pressure was similar between WKY rats and SHR in 5th week of age; however, in 12th week, it was significantly increased in SHR comparing to WKY rats.
The amount of retroperitoneal fat was higher in WKY rats in both age groups, whereas body weight was higher in WKY rats only in 12th week, when compared to age-matched SHR.
From isolated superior mesenteric arteries, two ring preparations were prepared for isometric tension recording, one with PVAT intact and other with PVAT removed.
In WKY rats as well as in SHR, arterial contractile responses to noradrenaline, applied cumulatively on rings, were significantly inhibited in the presence of intact PVAT.
In both age groups, anticontractile effect of PVAT was higher in WKY rats than in SHR.
Neurogenic contractions, induced by electrical stimulation of perivascular sympathoadrenergic nerves, were significantly attenuated in the presence of PVAT in WKY mesenteric arteries from both age groups; however, in arteries from SHR, intact PVAT had no influence on this type of contractile responses.
The results suggest that in SHR impairment of anticontractile effect of PVAT precedes hypertension and might contribute to its development.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Zemančíková, Anna& Török, Jozef. 2019. Influence of Age on Anticontractile Effect of Perivascular Adipose Tissue in Normotensive and Hypertensive Rats. Oxidative Medicine and Cellular Longevity،Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1206345
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Zemančíková, Anna& Török, Jozef. Influence of Age on Anticontractile Effect of Perivascular Adipose Tissue in Normotensive and Hypertensive Rats. Oxidative Medicine and Cellular Longevity No. 2019 (2019), pp.1-8.
https://search.emarefa.net/detail/BIM-1206345
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Zemančíková, Anna& Török, Jozef. Influence of Age on Anticontractile Effect of Perivascular Adipose Tissue in Normotensive and Hypertensive Rats. Oxidative Medicine and Cellular Longevity. 2019. Vol. 2019, no. 2019, pp.1-8.
https://search.emarefa.net/detail/BIM-1206345
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1206345
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
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