The seesaw of diet restriction and lifespan: lessons from Drosophila studies

被引:3
|
作者
Krittika, Sudhakar [1 ]
Yadav, Pankaj [1 ]
机构
[1] SASTRA Deemed Univ, Sch Chem & Biotechnol, Fly Lab 210,Anusandhan Kendra 2, Thanjavur 613401, Tamil Nadu, India
关键词
Drosophila melanogaster; Diet restriction; Development time; Balanced diet; Lifespan;
D O I
10.1007/s10522-021-09912-3
中图分类号
R592 [老年病学]; C [社会科学总论];
学科分类号
03 ; 0303 ; 100203 ;
摘要
Diet restriction (DR) studies undergo the implementation of reduced single or multiple component/s of the fly food without causing malnutrition. The question of how and why DR modifies the fate of lifespan in fruit flies Drosophila melanogaster has prompted us to emphasize by attending the control food composition first. Certain concentrations of DR food do not always confer an extended lifespan, rather it enables the flies to achieve their normal lifespan, which was probably reduced by the control food per se (having toxic effect caused due to the excess levels of dietary components). However, the current paradigm of DR studies has elicited its benefits and losses via trade-offs in the organismal traits and have highlighted the need for a common diet, but have not claimed the tested diets as balanced. So, the DR effect on lifespan and other fitness traits cannot be justified only based on varying control food across labs and hence, the approach of DR studies has to be revisited and a balanced diet has to be formulated. The current article discusses the need for a balanced diet, the traits to be considered before designing a diet, and certain problems in the existing synthetic medium. Therefore, based on the control food composition, the validity of lifespan extension conferred by these nutrient restricted diets need to be accounted for.
引用
收藏
页码:253 / 259
页数:7
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