keyword
MENU ▼
Read by QxMD icon Read
search

adipose browning

keyword
https://www.readbyqxmd.com/read/29351550/differential-actions-of-ppar-%C3%AE-and-ppar-%C3%AE-%C3%AE-on-beige-adipocyte-formation-a-study-in-the-subcutaneous-white-adipose-tissue-of-obese-male-mice
#1
Tamiris Lima Rachid, Flavia Maria Silva-Veiga, Francielle Graus-Nunes, Isabele Bringhenti, Carlos Alberto Mandarim-de-Lacerda, Vanessa Souza-Mello
BACKGROUND AND AIMS: Obesity compromises adipocyte physiology. PPARs are essential to adipocyte plasticity, but its isolated role in the browning phenomenon is not clear. This study aimed to examine whether activation of PPAR-α or PPAR-β/δ could induce beige cell depots in the subcutaneous white adipose tissue of diet-induced obese mice. MATERIAL AND METHODS: Sixty animals were randomly assigned to receive a control diet (C, 10% lipids) or a high-fat diet (HF, 50% lipids) for ten weeks...
2018: PloS One
https://www.readbyqxmd.com/read/29351429/removal-of-interscapular-brown-adipose-tissue-increases-aortic-stiffness-despite-normal-systemic-glucose-metabolism-in-mice
#2
Zachary Ian Grunewald, Nathan C Winn, Michelle L Gastecki, Makenzie L Woodford, James R Ball, Sarah A Hansen, Harold S Sacks, Victoria J Vieira-Potter, Jaume Padilla
Brown adipose tissue (BAT) is considered protective against obesity and related cardiometabolic dysfunction. Indeed, activation of BAT improves glucose homeostasis and attenuates cardiovascular disease development. However, whether a reduction in BAT mass perturbs metabolic function and increases risk for cardiovascular disease remains largely unknown. To address this question, C57BL/6J male mice underwent sham or surgical bilateral excision of interscapular BAT (iBATx) and were fed a normal chow or Western diet (WD) for 18 weeks, creating four groups (n=10/group)...
December 20, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29348847/distinct-roles-of-traf6-and-tak1-in-the-regulation-of-adipocyte-survival-thermogenesis-program-and-high-fat-diet-induced-obesity
#3
Yann S Gallot, Joseph D McMillan, Guangyan Xiong, Kyle R Bohnert, Alex R Straughn, Bradford G Hill, Ashok Kumar
Chronic low-grade inflammation, adipocyte hypertrophy, and glucose intolerance are common features of obesity and a risk factor for cancer. Tumor necrosis factor (TNF) receptor-associated factor 6 (TRAF6) is an adaptor protein that also possesses a non-conventional E3 ubiquitin ligase activity. In response to receptor-mediated events, TRAF6 activates transforming growth factor-activated kinase 1 (TAK1), which leads to activation of the MAPK and nuclear factor-kappa B (NF-κB) signaling pathways. However, the roles of TRAF6 and TAK1 in the regulation of adipocyte function remain less understood...
December 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29346772/peroxisome-proliferator-activated-receptor-gamma-controls-mature-brown-adipocyte-inducibility-through-glycerol-kinase
#4
David Lasar, Matthias Rosenwald, Elke Kiehlmann, Miroslav Balaz, Bettina Tall, Lennart Opitz, Martin E Lidell, Nicola Zamboni, Petra Krznar, Wenfei Sun, Lukas Varga, Patrik Stefanicka, Jozef Ukropec, Pirjo Nuutila, Kirsi Virtanen, Ez-Zoubir Amri, Sven Enerbäck, Walter Wahli, Christian Wolfrum
Peroxisome proliferator-activated receptors (PPARs) have been suggested as the master regulators of adipose tissue formation. However, their role in regulating brown fat functionality has not been resolved. To address this question, we generated mice with inducible brown fat-specific deletions of PPARα, β/δ, and γ, respectively. We found that both PPARα and β/δδ are dispensable for brown fat function. In contrast, we could show that ablation of PPARγ in vitro and in vivo led to a reduced thermogenic capacity accompanied by a loss of inducibility by β-adrenergic signaling, as well as a shift from oxidative fatty acid metabolism to glucose utilization...
January 16, 2018: Cell Reports
https://www.readbyqxmd.com/read/29343538/impact-of-dietary-%C3%AF-3-polyunsaturated-fatty-acid-supplementation-on-brown-and-brite-adipocyte-function
#5
Rayane A Ghandour, Cecilia Colson, Maude Giroud, Stefanie Maurer, Samah Rekima, Gerard P Ailhaud, Martin Klingenspor, Ez-Zoubir Amri, Didier F Pisani
The recent characterization of functional brown adipose tissue (BAT) in adult humans has opened new perspectives for regulation of energy expenditure with respect to obesity and diabetes. Furthermore, dietary recommendations have taken into account the insufficient dietary intake of ω3 polyunsaturated fatty acids (PUFA) and the concomitant excessive intake of ω6 PUFA associated with the occurrence of overweight/obesity. We aimed to study whether ω3 PUFAs could play a role in the recruitment and function of energy-dissipating brown/brite adipocytes...
January 17, 2018: Journal of Lipid Research
https://www.readbyqxmd.com/read/29343498/the-gpr120-agonist-tug-891-promotes-metabolic-health-by-stimulating-mitochondrial-respiration-in-brown-fat
#6
Maaike Schilperoort, Andrea D van Dam, Geerte Hoeke, Irina G Shabalina, Anthony Okolo, Aylin C Hanyaloglu, Lea H Dib, Isabel M Mol, Natarin Caengprasath, Yi-Wah Chan, Sami Damak, Anne Reifel Miller, Tamer Coskun, Bharat Shimpukade, Trond Ulven, Sander Kooijman, Patrick Cn Rensen, Mark Christian
Brown adipose tissue (BAT) activation stimulates energy expenditure in human adults, which makes it an attractive target to combat obesity and related disorders. Recent studies demonstrated a role for G protein-coupled receptor 120 (GPR120) in BAT thermogenesis. Here, we investigated the therapeutic potential of GPR120 agonism and addressed GPR120-mediated signaling in BAT We found that activation of GPR120 by the selective agonist TUG-891 acutely increases fat oxidation and reduces body weight and fat mass in C57Bl/6J mice...
January 17, 2018: EMBO Molecular Medicine
https://www.readbyqxmd.com/read/29343445/development-regulation-metabolism-and-function-of-bone-marrow-adipose-tissues
#7
Ziru Li, Julie Hardij, Devika P Bagchi, Erica L Scheller, Ormond A MacDougald
Most adipocytes exist in discrete depots throughout the body, notably in well-defined white and brown adipose tissues. However, adipocytes also reside within specialized niches, of which the most abundant is within bone marrow. Whereas bone marrow adipose tissue (BMAT) shares many properties in common with white adipose tissue, the distinct functions of BMAT are reflected by its development, regulation, protein secretion, and lipid composition. In addition to its potential role as a local energy reservoir, BMAT also secretes proteins, including adiponectin, RANK ligand, dipeptidyl peptidase-4, and stem cell factor, which contribute to local marrow niche functions and which may also influence global metabolism...
January 14, 2018: Bone
https://www.readbyqxmd.com/read/29342124/the-root-of-atractylodes-macrocephala-koidzumi-prevents-obesity-and-glucose-intolerance-and-increases-energy-metabolism-in-mice
#8
Mi Young Song, Soo-Kyoung Lim, Jing-Hua Wang, Hojun Kim
Targeting energy expenditure offers a strategy for treating obesity more effectively and safely. In previous studies, we found that the root of Atractylodes macrocephala Koidzumi (Atractylodis Rhizoma Alba, ARA) increased energy metabolism in C2C12 cells. Here, we investigated the effects of ARA on obesity and glucose intolerance by examining energy metabolism in skeletal muscle and brown fat in high-fat diet (HFD) induced obese mice. ARA decreased body weight gain, hepatic lipid levels and serum total cholesterol levels, but did not modify food intake...
January 17, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29341928/a-novel-brown-adipocyte-enriched-long-non-coding-rna-that-is-required-for-brown-adipocyte-differentiation-and-sufficient-to-drive-thermogenic-gene-program-in-white-adipocytes
#9
Yan Xiong, Feng Yue, Zhihao Jia, Yun Gao, Wen Jin, Keping Hu, Yong Zhang, Dahai Zhu, Gongshe Yang, Shihuan Kuang
The thermogenic activities of brown and beige adipocytes can be exploited to reduce energy surplus and counteract obesity. Recent RNA sequencing studies have uncovered a number of long noncoding RNAs (lncRNAs) uniquely expressed in white and brown adipose tissues (WAT and BAT), but whether and how these lncRNAs function in adipogenesis remain largely unknown. Here, we report the identification of a novel brown adipocyte-enriched LncRNA (AK079912), and its nuclear localization, function and regulation. The expression of AK079912 increases during brown preadipocyte differentiation and in response to cold-stimulated browning of white adipocytes...
January 13, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29338749/interleukin-6-induces-fat-loss-in-cancer-cachexia-by-promoting-white-adipose-tissue-lipolysis-and-browning
#10
Jun Han, Qingyang Meng, Lei Shen, Guohao Wu
BACKGROUND: Cancer cachexia is a progressive and multi-factorial metabolic syndrome characterized by loss of adipose tissue and skeletal muscle. White adipose tissue (WAT) lipolysis and white-to-brown transdifferentiation of WAT (WAT browning) are proposed to contribute to WAT atrophy in cancer cachexia. Chronic inflammation, mediated by cytokines such as tumor necrosis factor alpha (TNF-α) and interleukin-6 (IL-6), has been reported to promote cancer cachexia. However, whether chronic inflammation promotes cancer cachexia by regulating WAT metabolism and the underlying mechanism remains unclear...
January 16, 2018: Lipids in Health and Disease
https://www.readbyqxmd.com/read/29334590/highly-dispersible-and-bioavailable-curcumin-but-not-native-curcumin-induces-brown-like-adipocyte-formation-in-mice
#11
Sho Nishikawa, Misa Kamiya, Hiroki Aoyama, Mami Nomura, Takuma Hyodo, Aoi Ozeki, Hyunjin Lee, Tsukasa Takahashi, Atsushi Imaizumi, Takanori Tsuda
SCOPE: The induction of brown-like adipocytes in white adipose tissue (WAT) is a potential therapeutic target for the treatment of obesity and metabolic disorders via the ability of these cells to release excess energy as heat in association with uncoupling protein 1. Some experimental trials suggest that curcumin (a yellow pigment from turmeric) has a suppressive effect on the accumulation of body fat. However, there is little evidence to show that curcumin induces the formation of brown-like adipocytes and the molecular mechanisms involved remain elusive...
January 15, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29329795/omega-3-fatty-acids-and-adipose-tissue-biology
#12
REVIEW
Ondrej Kuda, Martin Rossmeisl, Jan Kopecky
This review provides evidence for the importance of white and brown adipose tissue (i.e. WAT and BAT) function for the maintenance of healthy metabolic phenotype and its preservation in response to omega-3 polyunsaturated fatty acids (omega-3 PUFA), namely in the context of diseased states linked to aberrant accumulation of body fat, systemic low-grade inflammation, dyslipidemia and insulin resistance. More specifically, the review deals with (i) the concept of immunometabolism, i.e. how adipose-resident immune cells and adipocytes affect each other and define the immune-metabolic interface; and (ii) the characteristic features of "healthy adipocytes" in WAT, which are relatively small fat cells endowed with a high capacity for mitochondrial oxidative phosphorylation, triacylglycerol/fatty acid (TAG/FA) cycling and de novo lipogenesis (DNL)...
January 9, 2018: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/29329013/antiobesity-effect-of-lactobacillus-reuteri-263-associated-with-energy-metabolism-remodeling-of-white-adipose-tissue-in-high-energy-diet-fed-rats
#13
Li-Han Chen, Yi-Hsing Chen, Kuan-Chen Cheng, Ting-Yi Chien, Ching-Hung Chan, Shu-Ping Tsao, Hui-Yu Huang
Obesity is a serious and costly issue to the medical welfare worldwide. Probiotics have been suggested as one of the candidates to resolve the obesity-associated problems, but how they combat obesity is not fully understood. Herein, we investigated the effects of Lactobacillus reuteri 263 (L. reuteri 263) on antiobesity using four groups of Sprague-Dawley rats (n=10/group), namely, C (normal diet with vehicle treatment), HE [high-energy diet (HED) with vehicle treatment], 1X (HED with 2.1×109 CFU/kg/day of L...
November 16, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29324306/mechanically-resilient-injectable-scaffolds-for-intramuscular-stem-cell-delivery-and-cytokine-release
#14
Stuart A Young, Stephen E Sherman, Tyler T Cooper, Cody Brown, Fraz Anjum, David A Hess, Lauren E Flynn, Brian G Amsden
A promising strategy for treating peripheral ischemia involves the delivery of stem cells to promote angiogenesis through paracrine signaling. Treatment success depends on cell localization, retention, and survival within the mechanically dynamic intramuscular (IM) environment. Herein we describe an injectable, in situ-gelling hydrogel for the IM delivery of adipose-derived stem/stromal cells (ASCs), specifically designed to withstand the dynamic loading conditions of the lower limb and facilitate cytokine release from encapsulated cells...
January 4, 2018: Biomaterials
https://www.readbyqxmd.com/read/29323267/scaffold-free-generation-of-uniform-adipose-spheroids-for-metabolism-research-and-drug-discovery
#15
Aloysius J Klingelhutz, Francoise A Gourronc, Anna Chaly, David A Wadkins, Anthony J Burand, Kathleen R Markan, Sharon O Idiga, Meng Wu, Matthew J Potthoff, James A Ankrum
Adipose tissue dysfunction is critical to the development of type II diabetes and other metabolic diseases. While monolayer cell culture has been useful for studying fat biology, 2D culture often does not reflect the complexity of fat tissue. Animal models are also problematic in that they are expensive, time consuming, and may not completely recapitulate human biology because of species variation. To address these problems, we have developed a scaffold-free method to generate 3D adipose spheroids from primary or immortal human or mouse pre-adipocytes...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29322691/raspberry-supplementation-improves-insulin-signaling-and-promotes-brown-like-adipocyte-development-in-white-adipose-tissue-of-obese-mice
#16
Tong Xing, Yifei Kang, Xinglian Xu, Bo Wang, Min Du, Mei-Jun Zhu
SCOPE: Excessive lipid accumulation in white adipose tissue (WAT) leads to chronic inflammation and metabolic dysfunction. Raspberry (RB) contains high amount of polyphenolics and dietary fibers. The objective of the study is to evaluate effects of RB supplementation on WAT morphology, inflammation and insulin signaling in high fat diet (HFD)-induced obese mice, and further explore the underlying mechanisms. METHODS AND RESULTS: C57BL/6J mice were fed with a control diet or a HFD supplemented with 0 or 5% freeze dried RB for 12 weeks...
January 10, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29320705/an-adipose-tissue-atlas-an-image-guided-identification-of-human-like-bat-and-beige-depots-in-rodents
#17
Fang Zhang, Guiyang Hao, Mengle Shao, Kien Nham, Yu An, Qiong Wang, Yi Zhu, Christine M Kusminski, Gedaa Hassan, Rana K Gupta, Qiwei Zhai, Xiankai Sun, Philipp E Scherer, Orhan K Oz
[18F]Fluorodeoxyglucose-PET/CT (18F-FDG-PET/CT) imaging has been invaluable for visualizing metabolically active adipose tissues in humans with potential anti-diabetic and anti-obesity effects. To explore whether mice display human-like fat depots in anatomically comparable regions, we mapped fat depots using glucose or fatty acid imaging tracers, such as 18F-FDG through PET/CT or [123/125I]-β-methyl-p-iodophenyl-pentadecanoic acid with SPECT/CT imaging, to analogous depots in mice. Using this type of image analysis with both probes, we define a large number of additional areas of high metabolic activity corresponding to novel fat pads...
January 9, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29320702/repression-of-adipose-tissue-fibrosis-through-a-prdm16-gtf2ird1-complex-improves-systemic-glucose-homeostasis
#18
Yutaka Hasegawa, Kenji Ikeda, Yong Chen, Diana L Alba, Daniel Stifler, Kosaku Shinoda, Takashi Hosono, Pema Maretich, Yangyu Yang, Yasushi Ishigaki, Jingyi Chi, Paul Cohen, Suneil K Koliwad, Shingo Kajimura
Adipose tissue fibrosis is a hallmark of malfunction that is linked to insulin resistance and type 2 diabetes; however, what regulates this process remains unclear. Here we show that the PRDM16 transcriptional complex, a dominant activator of brown/beige adipocyte development, potently represses adipose tissue fibrosis in an uncoupling protein 1 (UCP1)-independent manner. By purifying the PRDM16 complex, we identified GTF2IRD1, a member of the TFII-I family of DNA-binding proteins, as a cold-inducible transcription factor that mediates the repressive action of the PRDM16 complex on fibrosis...
January 9, 2018: Cell Metabolism
https://www.readbyqxmd.com/read/29311303/pyruvate-induces-torpor-in-obese-mice
#19
Marion Soto, Lucie Orliaguet, Michelle L Reyzer, M Lisa Manier, Richard M Caprioli, C Ronald Kahn
Mice subjected to cold or caloric deprivation can reduce body temperature and metabolic rate and enter a state of torpor. Here we show that administration of pyruvate, an energy-rich metabolic intermediate, can induce torpor in mice with diet-induced or genetic obesity. This is associated with marked hypothermia, decreased activity, and decreased metabolic rate. The drop in body temperature correlates with the degree of obesity and is blunted by housing mice at thermoneutrality. Induction of torpor by pyruvate in obese mice relies on adenosine signaling and is accompanied by changes in brain levels of hexose bisphosphate and GABA as detected by mass spectroscopy-based imaging...
January 8, 2018: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29310935/degradation-of-brown-adipocyte-purine-nucleotides-regulates-uncoupling-protein-1-activity
#20
Tobias Fromme, Karin Kleigrewe, Andreas Dunkel, Angelika Retzler, Yongguo Li, Stefanie Maurer, Natascha Fischer, Rolf Diezko, Timo Kanzleiter, Verena Hirschberg, Thomas Hofmann, Martin Klingenspor
OBJECTIVE: Non-shivering thermogenesis in mammalian brown adipose tissue depends on thermogenic uncoupling protein 1. Its activity is triggered by free fatty acids while purine nucleotides mediate inhibition. During activation, it is thought that free fatty acids overcome purine-mediated inhibition. We measured the cellular concentration and the release of purine nucleotide metabolites to uncover a possible role of purine nucleotide degradation in uncoupling protein 1 activation. METHODS: With mass spectrometry, purine nucleotide metabolites were quantified in cellular homogenates and supernatants of cultured primary brown adipocytes...
December 26, 2017: Molecular Metabolism
keyword
keyword
65172
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"