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Влияние избыточного питания в раннем периоде постнатального онтогенеза на прооксидантно-антиоксидантный баланс и NO-синтазную активность в тканях старых крыс

Влияние избыточного питания в раннем периоде постнатального онтогенеза на прооксидантно-антиоксидантный баланс и NO-синтазную активность в тканях старых крыс

Abstract

Исследованы особенности изменений прооксидантно-антиоксидантного баланса, тиреоидного статуса и NO-синтазной активности в тканях 20-месячных крыс, которые получали избыточное питание в течение первого месяца после рождения. Обнаружено, что у подопытных животных масса тела, концентрация тироксина, содержание гидроперекисей липидов и NO-синтазная активность были выше, чем у контрольных крыс. При этом в печени подопытных крыс наблюдалось достоверное снижение Se-зависимой глутатионпероксидазной активности. Предполагается, что одними из ключевых звеньев механизма выживаемости крыс в условиях избыточного питания могут быть прооксидантно-антиокси-дантная система и тиреоидный статус

The peculiarities of changes of prooxidant-antioxidant balance, thyroid status and NO-synthase activity in tissues of 20-month-old rats after overnutrition during first month after birth were investigated. It was found out that body weight, thyroxine concentration, lipid hydroperoxides content and NO-synthase activity in experimental rats were higher than in control ones. At the same time Se-dependent glutathione peroxidase activity was significantly decreased in liver of experimental rats. It is assumed that prooxidant-antioxidant system and thyroid state may be ones of the key links of the mechanism determining rats surviving in conditions of overnutrition.

Keywords

НАДМіРНЕ ХАРЧУВАННЯ, ПРООКСИДАНТНО-АНТИОКСИДАНТНИЙ БАЛАНС, ТИРЕОїДНИЙ СТАТУС, NO-СИНТАЗНА АКТИВНіСТЬ, ЩУРИ, ИЗБЫТОЧНОЕ ПИТАНИЕ, ТИРЕОИДНЫЙ СТАТУС, NO-СИНТАЗНАЯ АКТИВНОСТЬ, КРЫСЫ

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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