keyword
MENU ▼
Read by QxMD icon Read
search

Adaptive thermogenesis

keyword
https://www.readbyqxmd.com/read/29679742/adaptive-thermogenesis-by-dietary-n-3-polyunsaturated-fatty-acids-emerging-evidence-and-mechanisms
#1
REVIEW
Rong Fan, Karsten Koehler, Soonkyu Chung
Brown/beige fat plays a crucial role in maintaining energy homeostasis through non-shivering thermogenesis in response to cold temperature and excess nutrition (adaptive thermogenesis). Although numerous molecular and genetic regulators have been identified, relatively little information is available regarding thermogenic dietary molecules. Recently, a growing body of evidence suggests that high consumption of n-3 polyunsaturated fatty acids (PUFA) or activation of GPR120, a membrane receptor of n-3 PUFA, stimulate adaptive thermogenesis...
April 18, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29677509/beyond-host-defense-emerging-functions-of-the-immune-system-in-regulating-complex-tissue-physiology
#2
REVIEW
Lucille C Rankin, David Artis
The essential roles played by the immune system in the discrimination between self- versus non/altered-self and its integral role in promoting host defense against invading microbes and tumors have been extensively studied for many years. In these contexts, significant advances have been made in defining the molecular and cellular networks that orchestrate cell-cell communication to mediate host defense and pathogen expulsion. Notably, recent studies indicate that in addition to these classical immune functions, cells of the innate and adaptive immune system also sense complex tissue- and environment-derived signals, including those from the nervous system and the diet...
April 19, 2018: Cell
https://www.readbyqxmd.com/read/29675580/brown-adipose-tissue-in-human-infants
#3
Martin E Lidell
Adapting to the cold extrauterine environment after birth is a great challenge for the newborn. Due to their high surface area-to-volume ratio, infants tend to lose more heat to the environment as compared to adults. In addition, human newborns lack sufficiently developed skeletal muscle mass to maintain body temperature through shivering thermogenesis, an important source of heat in cold-exposed adults. Evolution has provided humans and other placental mammals with brown adipose tissue (BAT), a tissue that converts chemically stored energy, in the form of fatty acids and glucose, into heat through non-shivering thermogenesis...
April 20, 2018: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/29674659/histone-demethylase-jmjd1a-coordinates-acute-and-chronic-adaptation-to-cold-stress-via-thermogenic-phospho-switch
#4
Yohei Abe, Yosuke Fujiwara, Hiroki Takahashi, Yoshihiro Matsumura, Tomonobu Sawada, Shuying Jiang, Ryo Nakaki, Aoi Uchida, Noriko Nagao, Makoto Naito, Shingo Kajimura, Hiroshi Kimura, Timothy F Osborne, Hiroyuki Aburatani, Tatsuhiko Kodama, Takeshi Inagaki, Juro Sakai
In acute cold stress in mammals, JMJD1A, a histone H3 lysine 9 (H3K9) demethylase, upregulates thermogenic gene expressions through β-adrenergic signaling in brown adipose tissue (BAT). Aside BAT-driven thermogenesis, mammals have another mechanism to cope with long-term cold stress by inducing the browning of the subcutaneous white adipose tissue (scWAT). Here, we show that this occurs through a two-step process that requires both β-adrenergic-dependent phosphorylation of S265 and demethylation of H3K9me2 by JMJD1A...
April 19, 2018: Nature Communications
https://www.readbyqxmd.com/read/29626477/chronic-cold-exposure-results-in-subcutaneous-adipose-tissue-browning-and-altered-global-metabolism-in-qinghai-tibetan-plateau-pika-ochotona-curzoniae
#5
Jia Li, Quanyu Yang, Zhenzhong Bai, Gregg L Semenza, Ri-Li Ge
The plateau pika (Ochotona curzoniae), one of the indigenous animals of the Qinghai-Tibet Plateau, is adapted to life in a cold and hypoxic environment. We conducted a series of genomic, proteomic and morphological studies to investigate whether changes in energy metabolism contribute to adaptation of the plateau pika to cold stress by analyzing summer and winter cohorts. The winter group showed strong morphological and histological features of brown adipose tissue (BAT) in subcutaneous white adipose tissue (sWAT)...
April 4, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29596655/enhanced-hepatic-ppar%C3%AE-activity-links-glut8-deficiency-to-augmented-peripheral-fasting-responses-in-male-mice
#6
Allyson L Mayer, Yiming Zhang, Emily H Feng, Cassandra B Higgins, Oyin Adenekan, Terri A Pietka, Wandy L Beatty, Brian J DeBosch
The adaptive fasting response is invoked as a promising cardiometabolic and neurodegenerative therapeutic pathway. We and others have defined the carbohydrate transporter, GLUT8, as a critical regulator of hepatic and whole-organism metabolic homeostasis in the overfed and diabetic states. However, the functions of this critical transporter in the physiological fasting response remain poorly understood. Here, we tested the hypothesis that GLUT8 modulates the adaptive hepatic fasting response. We demonstrate that mice with targeted Slc2a8 disruption exhibit enhanced thermogenesis, ketogenesis and peripheral lipid mobilization during fasting...
March 26, 2018: Endocrinology
https://www.readbyqxmd.com/read/29588285/clpp-deficiency-protects-against-metabolic-syndrome-but-hinders-adaptive-thermogenesis
#7
Christina Becker, Alexandra Kukat, Karolina Szczepanowska, Steffen Hermans, Katharina Senft, Christoph Paul Brandscheid, Priyanka Maiti, Aleksandra Trifunovic
Mitochondria are fundamental for cellular metabolism as they are both a source and a target of nutrient intermediates originating from converging metabolic pathways, and their role in the regulation of systemic metabolism is increasingly recognized. Thus, maintenance of mitochondrial homeostasis is indispensable for a functional energy metabolism of the whole organism. Here, we report that loss of the mitochondrial matrix protease CLPP results in a lean phenotype with improved glucose homeostasis. Whole-body CLPP-deficient mice are protected from diet-induced obesity and insulin resistance, which was not present in mouse models with either liver- or muscle-specific depletion of CLPP However, CLPP ablation also leads to a decline in brown adipocytes function leaving mice unable to cope with a cold-induced stress due to non-functional adaptive thermogenesis...
March 27, 2018: EMBO Reports
https://www.readbyqxmd.com/read/29549995/in-shackleton-s-trails-central-and-local-thermoadaptive-modifications-to-cold-and-hypoxia-after-a-man-hauling-expedition-on-the-antarctic-plateau
#8
Michail E Keramidas, Roger Kölegård, Ola Eiken
Cold and hypoxia constitute the main environmental stressors encountered on the Antarctic Plateau. Hence, we examined whether central and/or peripheral acclimatisation to the combined stressors of cold and hypoxia would be developed in four men following an 11-day man-hauling expedition on this polar region. Before and after the journey, participants performed a static whole-body immersion in 21 °C water, during which they were breathing a hypoxic gas (partial pressure of inspired O2 : ~97 mmHg). To evaluate their local responses to cold, participants also immersed the hand into 8 °C water for 30 min, while they were whole-body immersed and mildly hypothermic [i...
April 2018: Journal of Thermal Biology
https://www.readbyqxmd.com/read/29539415/err%C3%AE-preserves-brown-fat-innate-thermogenic-activity
#9
Maryam Ahmadian, Sihao Liu, Shannon M Reilly, Nasun Hah, Weiwei Fan, Eiji Yoshihara, Pooja Jha, C Daniel De Magalhaes Filho, Sandra Jacinto, Andrew V Gomez, Yang Dai, Ruth T Yu, Christopher Liddle, Annette R Atkins, Johan Auwerx, Alan R Saltiel, Michael Downes, Ronald M Evans
Brown adipose tissue (BAT) adaptively transfers energy from glucose and fat into heat by inducing a gene network that uncouples mitochondrial electron transport. However, the innate transcription factors that enable the rapid adaptive response of BAT are unclear. Here, we identify estrogen-related receptor gamma (ERRγ) as a critical factor for maintaining BAT identity. ERRγ is selectively expressed in BAT versus WAT, in which, in the absence of PGC1α, it drives a signature transcriptional network of thermogenic and oxidative genes in the basal (i...
March 13, 2018: Cell Reports
https://www.readbyqxmd.com/read/29525607/raspberry-promotes-brown-and-beige-adipocyte-development-in-mice-fed-high-fat-diet-through-activation-of-amp-activated-protein-kinase-ampk-%C3%AE-1
#10
Tiande Zou, Bo Wang, Qiyuan Yang, Jeanene M de Avila, Mei-Jun Zhu, Jinming You, Daiwen Chen, Min Du
Development of brown and beige/brite adipocytes increases thermogenesis and helps to reduce obesity and metabolic syndrome. Our previous study suggests that dietary raspberry can ameliorate metabolic syndromes in diet-induced obese mice. Here, we further evaluated the effects of raspberry on energy expenditure and adaptive thermogenesis and determined whether these effects were mediated by AMP-activated protein kinase (AMPK). Mice deficient in the catalytic subunit of AMPKα1 and wild-type (WT) mice were fed a high-fat diet (HFD) or HFD supplemented with 5% raspberry (RAS) for 10 weeks...
February 13, 2018: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29524524/seasonal-changes-in-plasma-levels-of-thyroid-hormones-and-the-effects-of-the-hormones-on-cellular-atp-content-in-common-bottlenose-dolphin
#11
Miwa Suzuki, Kaho Banno, Toshiki Usui, Noriko Funasaka, Takao Segawa, Tetsuo Kirihata, Haruka Kamisako, Keiichi Ueda, Arimune Munakata
In general, thyroid hormones (THs) stimulate cellular metabolism by inducing ATP utilization that collaterally leads to thermogenesis. However, in cetaceans, TH functions and the contribution of THs to cold adaptation are not fully understood. To investigate the role of THs in metabolism of cetaceans, seasonal changes in circulating levels in thyroxine (T4 ) were investigated in the common bottlenose dolphin Tursiops truncatus that were monitored under two different conditions for two years, with routine measurements of body temperature (BT), water temperature (WT) and air temperature (AT)...
March 7, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29514888/insights-into-brown-adipose-tissue-evolution-and-function-from-non-model-organisms
#12
REVIEW
Martin Jastroch, Rebecca Oelkrug, Susanne Keipert
Brown adipose tissue (BAT) enables adaptive thermoregulation through heat production that is catalyzed by mitochondrial uncoupling protein 1 (UCP1). BAT is frequently studied in rodent model organisms, and recently in adult humans to treat metabolic diseases. However, complementary studies of many non-model species, which have diversified to many more ecological niches, may significantly broaden our understanding of BAT regulation and its physiological roles. This Review highlights the research on non-model organisms, which was instrumental to the discovery of BAT function, and the unique evolutionary history of BAT/UCP1 in mammalian thermogenesis...
March 7, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29514884/non-adrenergic-control-of-lipolysis-and-thermogenesis-in-adipose-tissues
#13
REVIEW
Katharina Braun, Josef Oeckl, Julia Westermeier, Yongguo Li, Martin Klingenspor
The enormous plasticity of adipose tissues, to rapidly adapt to altered physiological states of energy demand, is under neuronal and endocrine control. In energy balance, lipolysis of triacylglycerols and re-esterification of free fatty acids are opposing processes operating in parallel at identical rates, thus allowing a more dynamic transition from anabolism to catabolism, and vice versa. In response to alterations in the state of energy balance, one of the two processes predominates, enabling the efficient mobilization or storage of energy in a negative or positive energy balance, respectively...
March 7, 2018: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29434028/effects-of-thyroid-hormones-on-thermogenesis-and-energy-partitioning
#14
REVIEW
K Alexander Iwen, Rebecca Oelkrug, Georg Brabant
Thyroid hormones (TH) are of central importance for thermogenesis, energy homeostasis and metabolism. Here, we will discuss these aspects by focussing on the physiological aspects of TH-dependent regulation in response to cold exposure and fasting, which will be compared to alterations in primary hyperthyroidism and hypothyroidism. In particular, we will summarise current knowledge on regional thyroid hormone status in the central nervous system (CNS) and in peripheral cells. In contrast to hyperthyroidism and hypothyroidism, where parallel changes are observed, local alterations in the CNS differ to peripheral compartments when induced by cold exposure or fasting...
April 2018: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29414316/ppar%C3%AE-agonist-rosiglitazone-switches-fuel-preference-to-lipids-in-promoting-thermogenesis-under-cold-exposure-in-c57bl-6-mice
#15
Rong Gao, Wei Chen, Huang Yan, Xinni Xie, Dongqi Liu, Chenxi Wu, Zhaohui Zhu, Haijing Li, Fangting Dong, Lili Wang
Brown and beige adipose tissues play key roles in adaptive thermogenesis, which is essential for homoiotherms to maintain core temperature under cold exposure. PPARγ is a transcriptional regulator critical for brown adipose tissue (BAT) recruitment and white adipose tissue (WAT) browning. Here we evaluated the impact of PPARγ activation on thermogenic activity in C57BL/6 mice under thermo-neutral and 4 °C cold environment, and revealed the regulating mechanism and metabolic basis. Rosiglitazone slowed body temperature loss in cold environment in C57BL/6 mice, suppressed cold-induced decreases in blood glucose, reversed cold-promoted18 F-FDG uptake, and increased lipid consumption in BAT...
January 27, 2018: Journal of Proteomics
https://www.readbyqxmd.com/read/29365884/insulin-signaling-determines-anabolic-energy-uptake-processes-into-brown-fat-during-catabolic-conditions-of-adaptive-thermogenesis
#16
Markus Heine, Alexander Fischer, Renate Schreiber, Rudolf Zechner, Ludger Scheja, Jörg Heeren
No abstract text is available yet for this article.
August 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29358227/inflammatory-pathways-regulated-by-tumor-necrosis-receptor-associated-factor-1-protect-from-metabolic-consequences-in-diet-induced-obesity
#17
Nathaly Anto Michel, Christian Colberg, Konrad Buscher, Björn Sommer, Akula Bala Pramod, Erik Ehinger, Bianca Dufner, Natalie Hoppe, Katharina Pfeiffer, Timoteo Marchini, Florian Willecke, Peter Stachon, Ingo Hilgendorf, Timo Heidt, Constantin von Zur Muhlen, Dominik von Elverfeldt, Dietmar Pfeifer, Roland Schüle, Ulrich Kintscher, Sebastian Brachs, Klaus Ley, Christoph Bode, Andreas Zirlik, Dennis Wolf
RATIONALE: The coincidence of inflammation and metabolic derangements in obese adipose tissue has sparked the concept of met-inflammation. Previous observations, however, suggest that inflammatory pathways may not ultimately cause dysmetabolism. OBJECTIVE: We have revisited the relationship between inflammation and metabolism by testing the role of TRAF (tumor necrosis receptor-associated factor)-1, an inhibitory adapter of inflammatory signaling of TNF (tumor necrosis factor)-α, IL (interleukin)-1β, and TLRs (toll-like receptors)...
March 2, 2018: Circulation Research
https://www.readbyqxmd.com/read/29298809/sucrose-nonfermenting-related-kinase-regulates-both-adipose-inflammation-and-energy-homeostasis-in-mice-and-humans
#18
Jie Li, Bin Feng, Yaohui Nie, Ping Jiao, Xiaochen Lin, Mengna Huang, Ran An, Qin He, Huilin Emily Zhou, Arthur Salomon, Kirsten S Sigrist, Zhidan Wu, Simin Liu, Haiyan Xu
Sucrose nonfermenting-related kinase (SNRK) is a member of the AMPK-related kinase family, and its physiological role in adipose energy homeostasis and inflammation remains unknown. We previously reported that SNRK is ubiquitously and abundantly expressed in both white adipose tissue (WAT) and brown adipose tissue (BAT), but SNRK expression diminishes in adipose tissue in obesity. In this study we report novel experimental findings from both animal models and human genetics. SNRK is essential for survival; SNRK globally deficient pups die within 24 h after birth...
March 2018: Diabetes
https://www.readbyqxmd.com/read/29281847/geographic-variation-in-cone-volatiles-and-pollinators-in-the-thermogenic-african-cycad-encephalartos-ghellinckii-lem
#19
T N Suinyuy, S D Johnson
Heat and odour production can have profound effects on pollination in cycads. It is therefore expected that these traits would co-vary geographically with pollinator assemblages. Such intraspecific variation, may lead to the evolution of pollination ecotypes, which can be an early stage of pollinator-mediated speciation. We measured cone temperatures using miniature temperature data loggers and examined the composition of cone volatile odours using headspace sampling and analysis with gas chromatography-mass spectrometry in four populations spanning the range of the African cycad Encephalartos ghellinckii...
December 27, 2017: Plant Biology
https://www.readbyqxmd.com/read/29237539/cdkn2a-deficiency-promotes-adipose-tissue-browning
#20
Nabil Rabhi, Sarah Anissa Hannou, Xavier Gromada, Elisabet Salas, Xi Yao, Frédérik Oger, Charlène Carney, Isabel C Lopez-Mejia, Emmanuelle Durand, Iandry Rabearivelo, Amélie Bonnefond, Emilie Caron, Lluis Fajas, Christian Dani, Philippe Froguel, Jean-Sébastien Annicotte
OBJECTIVES: Genome-wide association studies have reported that DNA polymorphisms at the CDKN2A locus modulate fasting glucose in human and contribute to type 2 diabetes (T2D) risk. Yet the causal relationship between this gene and defective energy homeostasis remains elusive. Here we sought to understand the contribution of Cdkn2a to metabolic homeostasis. METHODS: We first analyzed glucose and energy homeostasis from Cdkn2a-deficient mice subjected to normal or high fat diets...
February 2018: Molecular Metabolism
keyword
keyword
14932
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"