scholarly journals Individual housing of male C57BL/6J mice after weaning impairs growth and predisposes for obesity

2019 ◽  
Author(s):  
Lidewij Schipper ◽  
Steffen van Heijningen ◽  
Giorgio Karapetsas ◽  
Eline M. van der Beek ◽  
Gertjan van Dijk

AbstractIndividual housing from weaning onwards resulted in reduced growth rate during adolescence in male C57Bl/6J mice that were housed individually, while energy intake and energy expenditure were increased compared to socially housed counterparts. At 6 weeks of age, these mice had reduced lean body mass, but significantly higher white adipose tissue mass compared to socially housed mice. Body weight gain of individually housed animals exceeded that of socially housed mice during adulthood, with elevations in both energy intake and expenditure. At 18 weeks of age, individually housed mice showed higher adiposity and higher mRNA expression of UCP-1 in inguinal white adipose tissue. Exposure to an obesogenic diet starting at 6 weeks of age further amplified body weight gain and adipose tissue deposition. This study shows that post-weaning individual housing of male mice results in impaired adolescent growth and higher susceptibility to obesity in adulthood. Mice are widely used to study obesity and cardiometabolic comorbidities. For (metabolic) research models using mice, (social) housing practices should be carefully considered and regarded as a potential confounder due to their modulating effect on metabolic health outcomes.

2007 ◽  
Vol 21 (6) ◽  
Author(s):  
Yang Sam Jung ◽  
Pei Chin Tsung ◽  
Byoung Chul Kim ◽  
Jong Hoon Kim ◽  
Hoa Jun Seok ◽  
...  

2021 ◽  
Vol 65 (11) ◽  
pp. 2170027
Author(s):  
Karen Alejandra Méndez‐Lara ◽  
Elisabeth Rodríguez‐Millán ◽  
David Sebastián ◽  
Rosi Blanco‐Soto ◽  
Mercedes Camacho ◽  
...  

2018 ◽  
Vol 315 (1) ◽  
pp. E29-E37 ◽  
Author(s):  
Mariana Peduti Halah ◽  
Paula Beatriz Marangon ◽  
Jose Antunes-Rodrigues ◽  
Lucila L. K. Elias

Neonatal nutritional changes induce long-lasting effects on energy homeostasis. Adiponectin influences food intake and body weight. The aim of this study was to investigate the effects of neonatal nutritional programming on the central stimulation of adiponectin. Male Wistar rats were divided on postnatal (PN) day 3 in litters of 3 (small litter, SL), 10 (normal litter, NL), or 16 pups/dam (large litter, LL). We assessed body weight gain for 60 days, adiponectin concentration, and white adipose tissue weight. We examined the response of SL, NL, and LL rats on body weight gain, food intake, oxygen consumption (V̇o2), respiratory exchange ratio (RER), calorimetry, locomotor activity, phosphorylated-AMP-activated protein kinase (AMPK) expression in the hypothalamus, and uncoupling protein (UCP)-1 in the brown adipose tissue after central stimulus with adiponectin. After weaning, SL rats maintained higher body weight gain despite similar food intake compared with NL rats. LL rats showed lower body weight at weaning, with a catch up afterward and higher food intake. Both LL and SL groups had decreased plasma concentrations of adiponectin at PN60. SL rats had increased white adipose tissue. Central injection of adiponectin decreased body weight and food intake and increased V̇o2, RER, calorimetry, p-AMPK and UCP- 1 expression in NL rats, but it had no effect on SL and LL rats, compared with the respective vehicle groups. In conclusion, neonatal under- and overfeeding induced an increase in body weight gain in juvenile and early adult life. Unresponsiveness to central effects of adiponectin contributes to the imbalance of the energy homeostasis in adult life induced by neonatal nutritional programming.


2021 ◽  
pp. 2100111
Author(s):  
Karen Alejandra Méndez‐Lara ◽  
Elisabeth Rodríguez‐Millán ◽  
David Sebastián ◽  
Rosi Blanco‐Soto ◽  
Mercedes Camacho ◽  
...  

Nutrients ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 2185
Author(s):  
Samira Aouichat ◽  
Meriem Chayah ◽  
Souhila Bouguerra-Aouichat ◽  
Ahmad Agil

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.


2020 ◽  
Vol 21 ◽  
Author(s):  
Débora Cristina Mariano Brasil ◽  
Rafaela Marchiori Mariano do Val ◽  
José Antônio de Souza Cruz Ramos ◽  
Martha Elisa Ferreira de Almeida

Abstract The objective was to evaluate whether the juice from the leaves of cacti of three species of the genus Pereskia promotes changes in the physiological parameters of Wistar rats. The study was divided into stage 1 (obesity induction with a hypercaloric diet, monosodium glutamate, and sucrose solution), and stage 2 (use of cactus juice). The data of body weight, Body Mass and Lee Indexes, feed intake, adipose tissue mass, and Visceral and Epididymal Fat Indexes were compared by the Tukey test at 5%. Monosodium glutamate and sucrose in association with the hypercaloric diet did not increase adipose tissues. No statistical difference was found between the means of body weight, Body Mass Index and Lee Index, liver weight, and Hepatosomatic Index. Pereskia grandifolia juice promoted a lower total weight gain due to the low feed intake. Pereskia aculeata juice increased the visceral adipose tissue mass. Thus, the Pereskia grandifolia juice presented a better effect on weight gain. These cacti are rich in nutrients and bioactive compounds that can improve food quality, and prevent chronic non-communicable diseases.


Author(s):  
Samira Aouichat ◽  
Souhila Bouguerra-Aouichat ◽  
Ahmad Agil

Time-restricted feeding (TRF) showed a potent effect in preventing obesity and improving metabolic outcomes in several animal model of obesity; however, there is, as yet, scarce evidence about its effectiveness against obesogenic challenge that more accurately mimic the human Western diets, such as 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 cafeteria diet-induced obesity model. Male Wistar rats, fed normal laboratory chow (NC) or cafeteria diet (CAF) for 16 weeks, were subdivided into two groups that were subjected to either ad libitum (ad lib, A) or TRF (R) for 8 hours per day. Rats under TRF regimen had a lower body weight gain and adiposity compared with their diet-matched ad 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 rats fed CAF diet. 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) in iWAT were also up-regulated in time restricted NC- or CAF-fed rats. These findings suggest that TRF regimen is an effective strategy to improve obesity and associated dyslipidemia induced by CAF-diet, probably via a mechanism involving WAT browning process.


Endocrinology ◽  
2004 ◽  
Vol 145 (11) ◽  
pp. 5259-5268 ◽  
Author(s):  
Mathias Z. Strowski ◽  
Zhihua Li ◽  
Deborah Szalkowski ◽  
Xiaolan Shen ◽  
Xiao-Ming Guan ◽  
...  

Abstract Adiposity positively correlates with insulin resistance and is a major risk factor of type 2 diabetes. Administration of exogenous insulin, which acts as an anabolic factor, facilitates adipogenesis. Recently nonpeptidal insulin receptor (IR) activators have been discovered. Here we evaluate the effects of the orally bioavailable small-molecule IR activator (Compound-2) on metabolic abnormalities associated with type 2 diabetes using a nongenetic mouse model in comparison with the effects of a novel non-thiazolidinedione (nTZD) peroxisome proliferator-activated receptor-γ agonist. Both Compound-2 and nTZD alleviated fasting and postprandial hyperglycemia; accelerated glucose clearance rate; and normalized plasma levels of nonesterified fatty acids, triglycerides, and leptin. Unlike nTZD, which increased body weight gain, and total fat mass, which is a common feature for PPARγ agonists, Compound-2 prevented body weight gain and hypertrophy of brown, and white adipose tissue depots and the development of hepatic steatosis in the mouse model of type 2 diabetes. The effect of the two compounds on proximal steps in insulin signal transduction pathway was analyzed in tissues. Compound-2 enhanced insulin-stimulated phosphorylation of IR tyrosine and/or Akt in the liver, skeletal muscle, and white adipose tissue, whereas nTZD potentiated the phosphorylation of IR and Akt in the adipose tissue only. In conclusion, small-molecule IR activators have unique features as insulin sensitizers and hold potential utility in the treatment of type 2 diabetes and obesity.


Cell Reports ◽  
2020 ◽  
Vol 33 (1) ◽  
pp. 108228 ◽  
Author(s):  
John M. Dean ◽  
Anyuan He ◽  
Min Tan ◽  
Jun Wang ◽  
Dongliang Lu ◽  
...  

2014 ◽  
Vol 393 (1-2) ◽  
pp. 120-128 ◽  
Author(s):  
M. Holubová ◽  
V. Nagelová ◽  
Z. Lacinová ◽  
M. Haluzík ◽  
D. Sýkora ◽  
...  

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