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https://www.readbyqxmd.com/read/28323929/human-brown-adipose-tissue-temperature-and-fat-fraction-are-related-to-its-metabolic-activity
#1
Kalle Koskensalo, Juho Raiko, Teemu Saari, Virva Saunavaara, Olli Eskola, Pirjo Nuutila, Jani Saunavaara, Riitta Parkkola, Kirsi A Virtanen
Background and aim: The metabolic activity of human brown adipose tissue (BAT) has been previously examined using positron-emission-tomography (PET). The aim of this study was to use proton Magnetic Resonance Spectroscopy (1H MRS) to investigate whether the temperature and the fat fraction (FF) of brown and white adipose tissue (WAT) are associated with BAT metabolic activity determined by 18F-FDG-PET. Materials and methods: Ten healthy subjects (4f/6m, 25-45 y) were studied using PET-MRI during acute cold exposure and at ambient room temperature...
February 21, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28316560/lysopc-acyl-c16-0-is-associated-with-brown-adipose-tissue-activity-in-men
#2
Mariëtte R Boon, Leontine E H Bakker, Cornelia Prehn, Jerzy Adamski, Maarten J Vosselman, Ingrid M Jazet, Lenka M Pereira Arias-Bouda, Wouter D Marken van Lichtenbelt, Ko Willems van Dijk, Patrick C N Rensen, Dennis O Mook-Kanamori
INTRODUCTION: Brown adipose tissue (BAT) recently emerged as a potential therapeutic target in the treatment of obesity and associated disorders due to its fat-burning capacity. The current gold standard in assessing BAT activity is [(18)F]FDG PET-CT scan, which has severe limitations including radiation exposure, being expensive, and being labor-intensive. Therefore, indirect markers are needed of human BAT activity and volume. OBJECTIVE: We aimed to identify metabolites in serum that are associated with BAT volume and activity in men...
2017: Metabolomics: Official Journal of the Metabolomic Society
https://www.readbyqxmd.com/read/28284437/detection-and-characterization-of-volatile-organic-compounds-from-burned-human-and-animal-remains-in-fire-debris
#3
John D DeHaan, Eimi I Taormina, David J Brien
Debris collected from various test sites where mammalian remains (human and porcine) had been burned in a variety of full-scale fire scenarios was evaluated for the presence of volatile residues that could be characteristic of those remains. Levels of volatiles were measured using the method commonly used for fire debris analysis: gas chromatography-mass spectrometry. Homologous n-aldehydes (from n-pentanal to n-nonanal) proved to be a significant indicator of the presence of burned animal tissue as they were observed in nearly all of the samples...
March 2017: Science & Justice: Journal of the Forensic Science Society
https://www.readbyqxmd.com/read/28280044/smart-niche-usage-release-its-fat-and-burn-it
#4
Jan Jacob Schuringa
No abstract text is available yet for this article.
March 9, 2017: Blood
https://www.readbyqxmd.com/read/28244035/isolation-primary-culture-and-differentiation-of-preadipocytes-from-mouse-brown-adipose-tissue
#5
Wei Gao, Xingxing Kong, Qin Yang
Evolutionally, brown adipose tissue (BAT) is developed for nonshivering thermogenesis to prevent hypothermia. BAT has a high capacity to dissipate chemical energy generated from metabolism of nutrients for heat production. Therefore when BAT is activated, nutrients are "burned' instead of being stored. This feature makes BAT an attractive target for obesity treatment. To investigate BAT function and regulation, brown adipocyte culturing is indispensable. This chapter describes a detailed protocol for isolation, primary culture, and differentiation of preadipocytes from mouse BAT...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28161439/lipid-signaling-and-fat-storage-in-the-dark-eyed-junco
#6
Jacqueline M Ho, Christine M Bergeon Burns, Nikki M Rendon, Kimberly A Rosvall, Heather B Bradshaw, Ellen D Ketterson, Gregory E Demas
Seasonal hyperphagia and fattening promote survivorship in migratory and wintering birds, but reduced adiposity may be more advantageous during the breeding season. Factors such as photoperiod, temperature, and food predictability are known environmental determinants of fat storage, but the underlying neuroendocrine mechanisms are less clear. Endocannabinoids and other lipid signaling molecules regulate multiple aspects of energy balance including appetite and lipid metabolism. However, these functions have been established primarily in mammals; thus the role of lipid signals in avian fat storage remains largely undefined...
February 1, 2017: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/28154004/sub-erythemal-ultraviolet-radiation-reduces-metabolic-dysfunction-in-already-overweight-mice
#7
Naomi Fleury, Martin Feelisch, Prue Hart, Richard Weller, Jordan Smoothy, Vance Bruce Matthews, Shelley Gorman
Exposure to sunlight may limit cardiometabolic risk. In our previous studies, regular exposure to sub-erythemal (non-burning) ultraviolet radiation (UVR) reduced signs of adiposity and cardiometabolic dysfunction in mice fed a high fat diet. Some of the observed effects were dependent on skin release of nitric oxide following UVR exposure. Here, we examine the effects of sub-erythemal UVR on signs of adiposity and metabolic dysfunction in already overweight mice, comparing the effects of two sunlamps with distinct emitted light spectra...
February 2, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28153504/effect-of-omega-3-polyunsaturated-fatty-acids-derived-from-fish-oil-in-major-burn-patients-a-prospective-randomized-controlled-pilot-trial
#8
Serrana Tihista, Estrella Echavarría
BACKGROUND & AIMS: The burn patient is the clearest example of prolonged inflammatory response. Various nutrients, particularly omega-3 polyunsaturated fatty acids (ω-3 PUFAs), have been demonstrated as attenuating the inflammatory response, and reduce infectious complications. In absence of definitive evidence in major burns the study aimed at investigating the effect particularly on infectious complications of enteral nutrition enriched with ω-3 PUFAs. METHOD: Prospectively randomized controlled trial...
January 16, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28145475/diffuse-optical-spectroscopy-and-imaging-to-detect-and-quantify-adipose-tissue-browning
#9
U S Dinish, Chi Lok Wong, Sandhya Sriram, Wee Kiat Ong, Ghayathri Balasundaram, Shigeki Sugii, Malini Olivo
Adipose (fat) tissue is a complex metabolic organ that is highly active and essential. In contrast to white adipose tissue (WAT), brown adipose tissue (BAT) is deemed metabolically beneficial because of its ability to burn calories through heat production. The conversion of WAT-resident adipocytes to "beige" or "brown-like" adipocytes has recently attracted attention. However, it typically takes a few days to analyze and confirm this browning of WAT through conventional molecular, biochemical, or histological methods...
February 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28128928/a-direct-in-vivo-comparison-of-the-melanocortin-monovalent-agonist-ac-his-dphe-arg-trp-nh2-versus-the-bivalent-agonist-ac-his-dphe-arg-trp-pedg20-his-dphe-arg-trp-nh2-a-bivalent-advantage
#10
Cody J Lensing, Danielle N Adank, Stacey L Wilber, Katie T Freeman, Sathya M Schnell, Robert Charles Speth, Adam T Zarth, Carrie Haskell-Luevano
Bivalent ligands targeting putative melanocortin receptor dimers have been developed and characterized in vitro, however studies of their functional in vivo effects have been limited. The current report compares the effects of homobivalent ligand CJL-1-87, Ac-His-DPhe-Arg-Trp-PEDG20-His-DPhe-Arg-Trp-NH2, to monovalent ligand CJL-1-14, Ac-His-DPhe-Arg-Trp-NH2 on energy homeostasis in mice after central intracerebroventricular (ICV) administration into the lateral ventricle of the brain. Bivalent ligand CJL-1-87 had noteworthy advantages as an anti-obesity probe over CJL-1-14 in a fasting-refeeding in vivo paradigm...
January 27, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28117814/a-model-of-free-tissue-transfer-the-rat-epigastric-free-flap
#11
Diogo Casal, Diogo Pais, Inês Iria, Eduarda Mota-Silva, Maria-Angélica Almeida, Sara Alves, Cláudia Pen, Ana Farinho, Luís Mascarenhas-Lemos, José Ferreira-Silva, Mário Ferraz-Oliveira, Valentina Vassilenko, Paula A Videira, João Gory O'Neill
Free tissue transfer has been increasingly used in clinical practice since the 1970s, allowing reconstruction of complex and otherwise untreatable defects resulting from tumor extirpation, trauma, infections, malformations or burns. Free flaps are particularly useful for reconstructing highly complex anatomical regions, like those of the head and neck, the hand, the foot and the perineum. Moreover, basic and translational research in the area of free tissue transfer is of great clinical potential. Notwithstanding, surgical trainees and researchers are frequently deterred from using microsurgical models of tissue transfer, due to lack of information regarding the technical aspects involved in the operative procedures...
January 15, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28106169/inhibition-of-nucks-facilitates-corneal-recovery-following-alkali-burn
#12
Ming-Wai Poon, Dan Jiang, Peng Qin, Yuelin Zhang, Beiying Qiu, Sumit Chanda, Vinay Tergaonkar, Qing Li, Ian Y Wong, Zhendong Yu, Hung-Fat Tse, David S H Wong, Qizhou Lian
Corneal wound healing involves a complex cascade of cytokine-controlled cellular events, including inflammatory and angiogenesis responses that are regulated by transcriptional chromatin remodeling. Nuclear Ubiquitous Casein and cyclin-dependent Kinase Substrate (NUCKS) is a key chromatin modifier and transcriptional regulator of metabolic signaling. In this study, we investigated the role of NUCKS in corneal wound healing by comparing its effects on corneal alkali burn in NUCKS knockout (NKO) and NUCKS wild-type (NWT) mice...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28103995/-advances-in-the-research-of-prevention-and-treatment-of-postburn-contractures-of-hand
#13
K A Wang, G S Wu, Y Sun, Z F Xia
Scar contracture deformity, which can lead to dysfunction of hand and low quality of life, is one of the common complication after hand burns. The prevention measures of scar contracture after hand burns include large skin grafting, prevention of infection, insistence on wearing pressure gloves, use of silicone sheets, wearing orthosis, accepting proper physical therapy, and early functional exercise. The primary treatments of postburn contractures of the hand are surgery, drugs, laser treatment, and rehabilitation therapy...
January 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28100847/genetic-background-of-aberrant-thermogenin-expression-ucp1-in-obesity-leading-to-metabolic-syndrome
#14
Małgorzata Stosio, Agata Witkowicz, Anna Kowalska, Lidia Karabon
Cardiovascular and metabolic disturbances individually and interdependently lead to chronic pathological conditions observed in cardio-metabolic diseases (CMDs). In Europe, the morbidity and mortality caused by cardiovascular disease are the highest among all diseases. Therefore, it seems important to search for new and alternative therapies for obesity, which is the main cause of type 2 diabetes (T2D) and cardiovascular disease (CD). Great attention has been paid to the role of brown adipose tissue in fat burning and the possibility of transformation of the white adipose tissue to cells with brown adipose tissue function as a potential form of treatment of obesity...
December 31, 2016: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28096081/mice-with-hyperbilirubinemia-due-to-gilbert-s-syndrome-polymorphism-are-resistant-to-hepatic-steatosis-by-decreased-serine-73-phosphorylation-of-ppar%C3%AE
#15
Terry D Hinds, Peter A Hosick, Michael W Hankins, Andrea Nestor-Kalinoski, David E Stec
Gilbert's syndrome is derived from a polymorphism (TA repeat) in the hepatic UGT1A1 gene which results in decreased conjugation and increased levels of unconjugated bilirubin. Recently, we have shown that bilirubin binds directly to the fat burning nuclear peroxisome proliferator-activated receptor α (PPARα). Additionally, we have shown that serine 73 phosphorylation (Ser(P)(73)) of PPARα decreases activity by reducing its protein levels and transcriptional activity. The aim of this study was to determine if humanized mice with the Gilbert's polymorphism (HuUGT*28) have increased PPARα activation and reduced hepatic fat accumulation...
January 17, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28041747/autologous-fat-grafting-does-not-improve-burn-scar-appearance-a-prospective-randomized-double-blinded-placebo-controlled-pilot-study
#16
Shaili Gal, Jesus Ignacio Ramirez, Pirko Maguina
OBJECTIVE: It has been proposed that fat grafts can improve the appearance of mature burn scars. The pluripotent progenitor cells contained within autologous adipose tissue grafts are believed to induce skin repair and improve scar appearance. We conducted a prospective, randomized, double-blinded, placebo-controlled study to evaluate the effects of fat grafts on the appearance of mature burn scars. METHODS: Pediatric burn survivors with mature scars were recruited for this study...
December 29, 2016: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28009786/low-force-muscle-activity-regulates-energy-expenditure-after-spinal-cord-injury
#17
Jessica R Woelfel, Amy L Kimball, Chu-Ling Yen, Richard K Shields
Reduced physical activity is a primary risk factor for increased morbidity and mortality, People with spinal cord injury (SCI) have reduced activity for a lifetime, as they cannot volitionally activate affected skeletal muscles. We explored whether low force and low frequency stimulation is a viable strategy to enhance systemic energy expenditure in people with SCI. PURPOSE: To determine the effects of low stimulation frequency (1 Hz, 3 Hz) and stimulation intensity (50 mA and 100 mA) on energy expenditure in people with SCI...
December 22, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27928942/occurrence-of-polychlorinated-dibenzo-p-dioxins-pcdds-dibenzofurans-pcdfs-and-polychlorinated-biphenyls-pcbs-in-eggs-from-free-range-hens-in-campania-southern-italy-and-risk-evaluation
#18
Sara Lambiase, Francesco Paolo Serpe, Stefania Cavallo, Guido Rosato, Loredana Baldi, Bruno Neri, Mauro Esposito
Hens' eggs collected in home-producing farms located in different areas of the Campania region of southern Italy were analysed for six NDL-polychlorobiphenyls (PCB indicators), 17 polychlorodibenzo-p-dioxins (PCDDs) and polychlorodibenzofurans (PCDFs), and 12 congeners of dioxin-like PCBs (DL-PCBs). In the investigated area, waste from civil, industrial and hospital activities was illegally dumped and in many cases burned, so the area is called the 'Land of fire'. This illicit practice has been considered the main source of pollution in this territory and the cause of the persistent organic pollutants' (POPs) contamination in the neighbouring lands intended for agricultural use and livestock...
January 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/27920142/shedding-light-on-fat-dependence-in-aml
#19
(no author information available yet)
Scientists have begun unraveling the molecular intricacies that drive the appetite of acute myeloid leukemia for fat. They found that these tumor cells have particularly low levels of PHD3, an enzyme that normally activates ACC2 to repress fatty-acid oxidation. This fuels the cells' metabolic reliance on fat-burning, but also renders them highly susceptible to inhibitors of fatty-acid oxidation.
December 2016: Cancer Discovery
https://www.readbyqxmd.com/read/27908624/a-review-of-biomass-burning-emissions-and-impacts-on-air-quality-health-and-climate-in-china
#20
REVIEW
Jianmin Chen, Chunlin Li, Zoran Ristovski, Andelija Milic, Yuantong Gu, Mohammad S Islam, Shuxiao Wang, Jiming Hao, Hefeng Zhang, Congrong He, Hai Guo, Hongbo Fu, Branka Miljevic, Lidia Morawska, Phong Thai, Yun Fat Lam, Gavin Pereira, Aijun Ding, Xin Huang, Umesh C Dumka
Biomass burning (BB) is a significant air pollution source, with global, regional and local impacts on air quality, public health and climate. Worldwide an extensive range of studies has been conducted on almost all the aspects of BB, including its specific types, on quantification of emissions and on assessing its various impacts. China is one of the countries where the significance of BB has been recognized, and a lot of research efforts devoted to investigate it, however, so far no systematic reviews were conducted to synthesize the information which has been emerging...
February 1, 2017: Science of the Total Environment
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