Time-Restricted Feeding Improves Body Weight Gain, Lipid Profiles, and Atherogenic Indices in Cafeteria-Diet-Fed Rats: Role of Browning of Inguinal White Adipose Tissue

Autor: Samira Aouichat, Ahmad Agil, Meriem Chayah, Souhila Bouguerra-Aouichat
Jazyk: angličtina
Rok vydání: 2020
Předmět:
0301 basic medicine
Male
medicine.medical_specialty
obesity
time-restricted feeding
lipid profiles
Adipose Tissue
White
Adipose tissue
030209 endocrinology & metabolism
Cafeteria
lcsh:TX341-641
White adipose tissue
Diet
High-Fat
Weight Gain
Article
03 medical and health sciences
0302 clinical medicine
cafeteria diet
Internal medicine
medicine
white adipose tissue browning
Animals
Rats
Wistar
Triglycerides
Uncoupling Protein 1
Adiposity
Nutrition and Dietetics
biology
medicine.diagnostic_test
business.industry
atherogenic indices
Fasting
biology.organism_classification
medicine.disease
Lipid Metabolism
Obesity
Lipids
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha
Rats
030104 developmental biology
Endocrinology
medicine.symptom
Lipid profile
business
Weight gain
lcsh:Nutrition. Foods and food supply
Dyslipidemia
Food Science
Lipoprotein
Zdroj: Digibug: Repositorio Institucional de la Universidad de Granada
Universidad de Granada (UGR)
Digibug. Repositorio Institucional de la Universidad de Granada
instname
Nutrients
Volume 12
Issue 8
Nutrients, Vol 12, Iss 2185, p 2185 (2020)
ISSN: 2072-6643
Popis: We would like to express our appreciation to all staff from Diabesity-UGR group (AnaTorrices, DiegoSalagre, and Juan Miguel Leiva) for their technical support and for being attentive to answer our research questions and to AsmaAmalou from Physiopathology-USTHB group for the animal sacrifice assistance. We would also like to express our warmest thanks to NemchaLebaili and her staff from ÉcoleNormaleSupérieure (Kouba, Algiers) for the use of their animal facilities.
The following are available online at http://www.mdpi.com/2072-6643/12/8/2185/s1, Table S1: normal chow and cafeteria food items compositions as given by the product manufacturers.
Time-restricted feeding (TRF) showed a potent effect in preventing obesity and improving metabolicoutcomes in several animal models of obesity. However, there is, as of yet, scarce evidence concerning its effectiveness against obesogenic challenges that more accurately mimic human Western diets, such as the cafeteria diet. Moreover, the mechanism for its efficacy is poorly understood. White adipose browning has been linked to body weight loss. Herein, we tested whether TRF has the potential to induce browning of inguinal white adipose tissue (iWAT) and to attenuate obesity and associated dyslipidemia in a cafeteria-diet-induced obesity model. Male Wistar rats were fed normal laboratory chow (NC) or cafeteria diet (CAF) for 16 weeks and were subdivided into two groups that were subjected to either ad libitum (ad lib, A) or TRF (R) for 8 h per day. Rats under the TRF regimen had a lower body weight gain and adiposity than the diet-matchedad lib rats, despite equivalent levels of food intake and locomotor activity. In addition, TRF improved the deranged lipid profile (total cholesterol (TC), triglycerides (TG), high-density lipoprotein (HDL-c), low-density lipoprotein (LDL-c)) and atherogenic indices (atherogenic index of plasma (AIP), atherogenic coefficient (AC), coronary risk index (CRI) in CAF-fed rats. Remarkably, TRF resulted in decreased size of adipocytes and induced emergence of multilocular brown-like adipocytes in iWAT of NC- and CAF-fed rats. Protein expression of browning markers, such as uncoupling protein-1 (UCP1) and peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α), were also up-regulated in the iWAToftime-restricted NC- or CAF-fed rats. These findings suggest that a TRF regimen is an effective strategy to improve CAF diet-induced obesity, probably via a mechanismthe involving WAT browning process.
Ministerio de Economia y Competitividad (Spain) SAF2016-79794-R
Erasmus + Mobility Program Dimension Internacional from "European Commission" KA 107
Databáze: OpenAIRE
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