scholarly journals Young adult mice exposed to postnatal neglect display downregulation of transcription factors in visceral white adipose tissue

2018 ◽  
Vol 32 (S1) ◽  
Author(s):  
Jackeline Leachman ◽  
Joseph B. Herald ◽  
Kuey Chu Chen ◽  
Analia S. Loria
2018 ◽  
Vol 62 (21) ◽  
pp. 1800463 ◽  
Author(s):  
Alba Serrano ◽  
Madhu Asnani-Kishnani ◽  
Ana María Rodríguez ◽  
Andreu Palou ◽  
Joan Ribot ◽  
...  

2014 ◽  
Vol 16 (11) ◽  
pp. 893-901 ◽  
Author(s):  
Shoshana Burke ◽  
Fnu Nagajyothi ◽  
Mia M. Thi ◽  
Menachem Hanani ◽  
Philipp E. Scherer ◽  
...  

2020 ◽  
Vol 150 (7) ◽  
pp. 1738-1748
Author(s):  
Zeping Zhao ◽  
Jonggun Kim ◽  
Xin Gen Lei

ABSTRACT Background Excessive dietary selenium (Se; 3 mg/kg) or fat (>25%) intakes and overproduction of glutathione peroxidase 1 (GPX1) adversely affect body lipid metabolism. Objective The objective was to reveal impacts and mechanisms of a moderately high Se and a high fat intake on lipid metabolism in Gpx1 knockout (KO) and wild-type (WT) mice. Methods The KO and WT mice (males, 12-wk-old, body weight = 24.8 ± 0.703 g) were allotted to 4 groups each (n = 5) and fed a sucrose-torula yeast basal diet (5% corn oil) supplemented with 0.3 or 1.0 mg (+Se) Se/kg (as sodium selenite) and 0% or 25% [high-fat (HF)] lard for 6 wk. Multiple physiological and molecular biomarkers (68) related to lipid metabolism and selenogenome expression in plasma, liver, and/or adipose tissue were analyzed by 2-way (+Se by HF) ANOVA. Results Compared with the control diet, the +Se diet decreased (P < 0.05) body-weight gain and plasma and liver concentrations of lipids (22–66%) but elevated (≤1.5-fold, P < 0.05) adipose tissue concentrations of lipids in the WT mice. The +Se diet up- and downregulated (P < 0.05) mRNA and/or protein concentrations of factors related to lipogenesis, selenogenome, and transcription, stress, and cell cycle in the liver (26% to 176-fold) and adipose tissues (14% to 1-fold), respectively, compared with the control diet in the WT mice. Many of these +Se diet effects were different (P < 0.05) from those of the HF diet and were eliminated or altered (P < 0.05) by the KO. Conclusions The +Se and HF diets exerted tissue-specific and GPX1 expression–dependent impacts on lipid metabolism and related gene expression in the young-adult mice. Our findings will help reveal metabolic potential and underlying mechanisms of supplementing moderately high Se to subjects with HF intakes.


2013 ◽  
Vol 2013 ◽  
pp. 1-10 ◽  
Author(s):  
Bruno dos Santos ◽  
Debora Estadella ◽  
Ana Cláudia Losinskas Hachul ◽  
Marcos Hiromu Okuda ◽  
Mayara Franzoi Moreno ◽  
...  

This study analyzed the effect of diet enriched with 30% lipids on cytokines content in different tissues. Swiss male mice were distributed into four groups treated for 8 weeks with control (C, normolipidic diet); soybean oil (S); lard (L); and hydrogenated vegetable fat (H). We observed an increase in carcass fat in groups S and L, and the total amount of fatty deposits was only higher in group L compared with C group. The serum levels of free fatty acids were lower in the L group, and insulin, adiponectin, lipid profile, and glucose levels were similar among the groups. IL-10 was lower in group L in mesenteric and retroperitoneal adipose tissues. H reduced IL-10 only in retroperitoneal adipose tissue. There was an increase in IL-6 in the gastrocnemius muscle of the L group, and a positive correlation between TNF-αand IL-10 was observed in the livers of groups C, L, and H and in the muscles of all groups studied. The results suggested relationships between the quantity and quality of lipids ingested with adiposity, the concentration of free fatty acids, and cytokine production in white adipose tissue, gastrocnemius muscle, and liver.


2021 ◽  
Vol 131 (19) ◽  
Author(s):  
Erica P. Homan ◽  
Bruna B. Brandão ◽  
Samir Softic ◽  
Abdelfattah El Ouaamari ◽  
Brian T. O’Neill ◽  
...  

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Jessica E. C. Jones ◽  
Nabil Rabhi ◽  
Joseph Orofino ◽  
Ramya Gamini ◽  
Valentina Perissi ◽  
...  

AbstractVisceral white adipose tissue (vWAT) expands and undergoes extensive remodeling during diet-induced obesity. Much is known about the contribution of various stromal vascular cells to the remodeling process, but less is known of the changes that occur within the adipocyte as it becomes progressively dysfunctional. Here, we performed a transcriptome analysis of isolated vWAT adipocytes to assess global pathway changes occurring in response to a chronic high fat diet (HFD). The data demonstrate that the adipocyte responds to the HFD by adopting a fibroblast-like phenotype, characterized by enhanced expression of ECM, focal adhesion and cytoskeletal genes and suppression of many adipocyte programs most notably those associated with mitochondria. This study reveals that during obesity the adipocyte progressively becomes metabolically dysfunctional due to its acquisition of fibrogenic functions. We propose that mechano-responsive transcription factors such as MRTFA and SRF contribute to both upregulation of morphological genes as well as suppression of mitochondrial programs.


Diabetes ◽  
2013 ◽  
Vol 63 (4) ◽  
pp. 1248-1258 ◽  
Author(s):  
A. Kulyte ◽  
Y. Belarbi ◽  
S. Lorente-Cebrian ◽  
C. Bambace ◽  
E. Arner ◽  
...  

2008 ◽  
Vol 295 (1) ◽  
pp. C213-C220 ◽  
Author(s):  
Fei Wang ◽  
Qiang Tong

PU.1 transcription factor is a critical regulator of hematopoiesis and leukemogenesis. Because PU.1 interacts with transcription factors GATA-2 and C/EBPα, and both are involved in the regulation of adipogenesis, we investigated whether PU.1 plays a role in the regulation of adipocyte differentiation. Our data indicate that PU.1 is expressed in white adipose tissue. PU.1 protein can also be detected in cultured 3T3-L1 adipocytes. Forced expression of PU.1 in 3T3-L1 cells inhibits adipocyte differentiation, whereas deletion of the transactivation domain of PU.1 abolishes this effect. The inhibition of adipocyte differentiation by PU.1 is achieved, at least in part, through repression of the transcriptional activity of C/EBPα and C/EBPβ. Furthermore, GATA-2 and PU.1 have an additive inhibitory effect on C/EBP transactivation and adipogenesis. Finally, the expression of PU.1 is increased in white adipose of obese mice.


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