Changes in the 24 h Rhythmicity of Liver PPARs and Peroxisomal Markers When Feeding Is Restricted to Two Daytime Hours
Joint Authors
Báez-Ruiz, Adrián
Rivera-Zavala, Julieta B.
Díaz-Muñoz, Mauricio
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-04-05
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Natural & Life Sciences (Multidisciplinary)
Biology
Abstract EN
Restricted feeding (RF) during daytime is associated with anticipatory activity before feeding, marked hyperphagia after mealtime, adjustments in hepatic metabolism, and the expression of a food-entrained oscillator (FEO).
24 h rhythmicity of liver PPARα, β, and γ, peroxisomal markers (PMP70, AOX, and catalase), and free fatty acids (FFAs) during RF was evaluated.
The effect of fasting-refeeding was also studied.
Results showed (1) higher levels of FFA before feeding, (2) a shift of PPARα and PPARγ before and of PPARβ peaks after feeding, (3) an increase in peroxisomal markers, (4) a shift of PMP70 and AOX peaks before feeding, and of maximal catalase activity in the dark period, (5) changes in the fasting-refeeding response, and (6) high correlations (>0.9) of serum corticosterone with PPARα and PPARγ and of PMP70 with PPARβ.
In conclusion, 24 h rhythmicity of FFA, liver PPARs, and peroxisomal markers are biochemical adaptations associated with daytime RF and FEO expression.
American Psychological Association (APA)
Rivera-Zavala, Julieta B.& Báez-Ruiz, Adrián& Díaz-Muñoz, Mauricio. 2011. Changes in the 24 h Rhythmicity of Liver PPARs and Peroxisomal Markers When Feeding Is Restricted to Two Daytime Hours. PPAR Research،Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-458371
Modern Language Association (MLA)
Rivera-Zavala, Julieta B.…[et al.]. Changes in the 24 h Rhythmicity of Liver PPARs and Peroxisomal Markers When Feeding Is Restricted to Two Daytime Hours. PPAR Research No. 2011 (2011), pp.1-11.
https://search.emarefa.net/detail/BIM-458371
American Medical Association (AMA)
Rivera-Zavala, Julieta B.& Báez-Ruiz, Adrián& Díaz-Muñoz, Mauricio. Changes in the 24 h Rhythmicity of Liver PPARs and Peroxisomal Markers When Feeding Is Restricted to Two Daytime Hours. PPAR Research. 2011. Vol. 2011, no. 2011, pp.1-11.
https://search.emarefa.net/detail/BIM-458371
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458371