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https://www.readbyqxmd.com/read/28731853/hormonal-factors-in-the-control-of-the-browning-of-white-adipose-tissue
#1
REVIEW
Jiamiao Hu, Mark Christian
Adipose tissue has been historically classified into anabolic white adipose tissue (WAT) and catabolic brown adipose tissue (BAT). Recent studies have revealed the plasticity of WAT, where white adipocytes can be induced into 'brown-like' heat-producing adipocytes (BRITE or beige adipocytes). Recruiting and activating BRITE adipocytes in WAT (so-called 'browning') is believed to provide new avenues for the treatment of obesity-related diseases. A number of hormonal factors have been found to regulate BRITE adipose development and activity through autocrine, paracrine and systemic mechanisms...
July 21, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28722653/directing-visceral-white-adipocyte-precursors-to-a-thermogenic-adipocyte-fate-improves-insulin-sensitivity-in-obese-mice
#2
Chelsea Hepler, Mengle Shao, Jonathan Y Xia, Alexandra L Ghaben, Mackenzie J Pearson, Lavanya Vishvanath, Ankit X Sharma, Thomas S Morley, William L Holland, Rana K Gupta
Visceral adiposity confers significant risk for developing metabolic disease in obesity whereas preferential expansion of subcutaneous white adipose tissue (WAT) appears protective. Unlike subcutaneous WAT, visceral WAT is resistant to adopting a protective thermogenic phenotype characterized by the accumulation of Ucp1(+) beige/BRITE adipocytes (termed "browning"). In this study, we investigated the physiological consequences of browning murine visceral WAT by selective genetic ablation of Zfp423, a transcriptional suppressor of the adipocyte thermogenic program...
July 19, 2017: ELife
https://www.readbyqxmd.com/read/28720968/technological-quality-of-dough-and-breads-from-commercial-algarroba-wheat-flour-blends
#3
M J Correa, M V Salinas, B Carbas, C Ferrero, C Brites, M C Puppo
Algarroba flour is used to supplement lysine-limiting systems such as wheat flour due to its amino acidic composition. The effects of adding up to 30% of this flour to wheat flour (W-A30) on dough characteristics and breadmaking performance were studied. Dough rheology was tested by farinograph, oscillatory rheometry and texture profile analyses. Molecular mobility was evaluated by nuclear magnetic resonance, and thermal properties were analyzed by differential scanning calorimetry and viscoamylograph studies...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28686837/tethering-luminescent-thermometry-and-plasmonics-light-manipulation-to-assess-real-time-thermal-flow-in-nanoarchitectures
#4
Carlos D S Brites, Maria Cecilia Fuertes, Paula C Angelomé, Eduardo D Martínez, Patrícia P Lima, Galo J A A Soler-Illia, Luís D Carlos
The past decade has seen significant progresses in the ability to fabricate new mesoporous thin films with highly controlled pore systems and emerging applications in sensing, electrical and thermal isolation, microfluidics, solar cells engineering, energy storage, and catalysis. Heat management at the micro- and nanoscale is a key issue in most of these applications, requiring a complete thermal characterization of the films that is commonly performed using electrical methods. Here, plasmonic-induced heating (through Au NPs) is combined with Tb(3+)/Eu(3+) luminescence thermometry to measure the thermal conductivity of silica and titania mesoporous nanolayers...
July 11, 2017: Nano Letters
https://www.readbyqxmd.com/read/28683281/how-does-fat-transition-from-white-to-beige
#5
Marc L Reitman
Fischer et al. (2017) recently reported that interleukin-4 (IL-4) does not increase adipose thermogenesis and that activated macrophages do not synthesize catecholamines. These findings are unexpected because IL-4 activation of macrophages has been proposed to have a pivotal role in cold-induced thermogenesis by stimulating macrophage catecholamine production to recruit thermogenic beige or brite fat.
July 5, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28679625/adaptive-facultative-diet-induced-thermogenesis-in-wild-type-but-not-in-ucp1-ablated-mice
#6
Gabriella von Essen, Erik Lindsund, Barbara Cannon, Jan Nedergaard
The significance of diet-induced thermogenesis (DIT) for metabolic control is still debated. Although obesogenic diets recruit UCP1 and adrenergically inducible thermogenesis, and although the absence of UCP1 may promote the development of obesity, no actual UCP1-related thermogenesis identifiable as diet-induced thermogenesis has to date been unambiguously demonstrated. Examining mice living at thermoneutrality, we have identified a process of facultative (directly elicited by acute eating), adaptive (magnitude develops over weeks on an obesogenic diet) and fully UCP1-dependent thermogenesis...
July 5, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28672737/beiging-of-white-adipose-tissue-as-a-therapeutic-strategy-for-weight-loss-in-humans
#7
REVIEW
Baskaran Thyagarajan, Michelle T Foster
An imbalance between energy intake and expenditure leads to obesity. Adiposity associated with obesity progressively causes inflammation, type 2 diabetes, hypertension, hyperlipidemia and cardiovascular disease. Excessive dietary intake of fat results in its accumulation and storage in the white adipose tissue (WAT), whereas energy expenditure by fat utilization and oxidation predominately occurs in the brown adipose tissue (BAT). Recently, the presence of a third type of fat, referred to as beige or brite (brown in white), has been recognized in certain kinds of WAT depots...
June 23, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28649249/dscam1-in-pancrustacean-immunity-current-status-and-a-look-to-the-future
#8
Sophie A O Armitage, Joachim Kurtz, Daniela Brites, Yuemei Dong, Louis Du Pasquier, Han-Ching Wang
The Down syndrome cell adhesion molecule 1 (Dscam1) gene is an extraordinary example of diversity: by combining alternatively spliced exons, thousands of isoforms can be produced from just one gene. So far, such diversity in this gene has only been found in insects and crustaceans, and its essential part in neural wiring has been well-characterized for Drosophila melanogaster. Ten years ago evidence from D. melanogaster showed that the Dscam1 gene is involved in insect immune defense and work on Anopheles gambiae indicated that it is a hypervariable immune receptor...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28628760/tuberculosis-incidence-among-people-living-with-hiv-aids-with-virological-failure-of-antiretroviral-therapy-in-salvador-bahia-brazil
#9
Monaliza Cardozo Rebouças, Márcio Oliveira da Silva, Tatiana Haguihara, Carlos Brites, Eduardo Martins Netto
Antiretroviral therapy (ART) for HIV has led to increased survival of HIV-infected patients. However, tuberculosis (TB) remains the leading opportunistic infection and cause of death among people living with HIV/AIDS (PLWHA). TB has been shown to be a good predictor of virological failure among PLWHA. This study aimed to evaluate the incidence of TB and its consequences among individuals diagnosed with virological failure of HIV. This was a retrospective cohort study involving PLWHA being followed-up in an AIDS reference center in Salvador, Bahia, Brazil...
June 16, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28627213/nonalcoholic-fatty-liver-disease-nafld-pathophysiology-in-obese-children-and-adolescents-update
#10
Silvana Neves Ferraz de Assunção, Ney Christian Boa Sorte, Crésio Dantas Alves, Patricia S Almeida Mendes, Carlos Roberto Brites Alves, Luciana Rodrigues Silva
OBJECTIVE: Although the nonalcoholic fatty liver disease was first identified in 1980, it presents multifactorial and unclear pathophysiology. In this review, we intend to update the pathophysiological mechanisms of a high morbidity and mortality associated disease that is affecting obese children worldwide. DATA SOURCES: The PubMed and the Cochrane Library databases were used in the search strategy for articles related to nonalcoholic fatty liver disease and published in the last three decades...
June 5, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28614598/pulmonary-adenocarcinoma-diagnosed-by-incisional-skin-metastasis-in-an-old-scar-from-a-non-neoplastic-surgery
#11
B R Ferreira, M M Brites, J C Cardoso, J P Reis
No abstract text is available yet for this article.
June 14, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28612258/downregulated-glia-interplay-and-increased-mirna-155-as-promising-markers-to-track-als-at-an%C3%A2-early-stage
#12
Carolina Cunha, Catarina Santos, Cátia Gomes, Adelaide Fernandes, Alexandra Marçal Correia, Ana Maria Sebastião, Ana Rita Vaz, Dora Brites
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease of unknown cause. Absence of specific targets and biomarkers compromise the development of new therapeutic strategies and of innovative tools to stratify patients and assess their responses to treatment. Here, we investigate changes in neuroprotective-neuroinflammatory actions in the spinal cord of SOD1 (G93A) mice, at presymptomatic and symptomatic stages to identify stage-specific biomarkers and potential targets. Results showed that in the presymptomatic stage, there are alterations in both astrocytes and microglia, which comprise decreased expression of GFAP and S100B and upregulation of GLT-1, as well as reduced expression of CD11b, M2-phenotype markers, and a set of inflammatory mediators...
June 13, 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/28612196/cell-source-differentiation-functional-stimulation-and-potential-application-of-human-thermogenic-adipocytes-in-vitro
#13
REVIEW
Dinh-Toi Chu, Yang Tao, Le Hoang Son, Duc-Hau Le
Recent investigations have showed that the functional thermogenic adipocytes are present in both infants and adult humans. Accumulating evidence suggests that the coexistence of classical and inducible brown (brite) adipocytes in humans at adulthood and these adipocytes function to generate heat from energy resulting in reducing body fat and improving glucose metabolism. Human thermogenic adipocytes can be differentiated in vitro from stem cells, cell lines, or adipose stromal vascular fraction. Pre-activated human brite adipocytes in vitro can maintain their thermogenic function in normal or obese immunodeficient mice; therefore, they improve glucose homeostasis and reduce fat mass in obese animals...
June 14, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28603593/markers-of-inflammation-and-cardiovascular-disease-in-recently-diagnosed-celiac-disease-patients
#14
Walter F Tetzlaff, Tomás Meroño, Martin Menafra, Maximiliano Martin, Eliana Botta, Maria D Matoso, Patricia Sorroche, Juan A De Paula, Laura E Boero, Fernando Brites
AIM: To evaluate novel risk factors and biomarkers of cardiovascular disease in celiac disease (CD) patients compared with healthy controls. METHODS: Twenty adult patients with recent diagnosis of CD and 20 sex, age and body mass index-matched healthy controls were recruited during a period of 12 mo. Indicators of carbohydrate metabolism, hematological parameters and high sensitive C reactive protein were determined. Moreover, lipoprotein metabolism was also explored through evaluation of the lipid profile and the activity of cholesteryl ester transfer protein and lipoprotein associated phospholipase A2, which is also considered a specific marker of vascular inflammation...
May 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28571802/a-homologous-stem-cell-therapy-for-obesity-and-its-related-metabolic-disorders
#15
Dinh-Toi Chu, Yang Tao
Obesity and overweight have become a leading health problem in the world. But we have not yet had any optimal therapy to prevent this health issue. Accumulating evidence suggests that there is existence of functional brown/brite adipocytes in both infants and adult humans, and the activated brown/brite can burn energy by generating heat. These adipocytes can be differentiated from stem cells and transplantation of pre-activated human thermogenic adipocytes in vitro benefits to glucose homeostasis, insulin sensitivity and reduces body fat in normal or obese immunodeficient mice...
June 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28567000/exosomes-from-nsc-34-cells-transfected-with-hsod1-g93a-are-enriched-in-mir-124-and-drive-alterations-in-microglia-phenotype
#16
Sara Pinto, Carolina Cunha, Marta Barbosa, Ana R Vaz, Dora Brites
Amyotrophic lateral sclerosis (ALS) is a fatal adult-onset neurodegenerative disorder affecting motor neurons (MNs). Evidences indicate that ALS is a non-cell autonomous disease in which glial cells participate in both disease onset and progression. Exosomal transfer of mutant copper-zinc superoxide dismutase 1 (mSOD1) from cell-to-cell was suggested to contribute to disease dissemination. Data from our group and others showed that exosomes from activated cells contain inflammatory-related microRNAs (inflamma-miRNAs) that recapitulate the donor cell...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28550279/cinnamon-induces-browning-in-subcutaneous-adipocytes
#17
Hiu Yee Kwan, Jiahui Wu, Tao Su, Xiao-Juan Chao, Bin Liu, Xiuqiong Fu, Chi Leung Chan, Rebecca Hiu Ying Lau, Anfernee Kai Wing Tse, Quan Bin Han, Wang Fun Fong, Zhi-Ling Yu
Browning is the process of increasing the number of brite cells, which helps to increase energy expenditure and reduce obesity. Consumption of natural and non-toxic herbal extracts that possess the browning effect is an attractive anti-obesity strategy. In this study, we examined the browning effect of cinnamon extract. We found that cinnamon extract (CE) induced typical brown adipocyte multiocular phenotype in 3T3-L1 adipocytes. The treatment also increased brown adipocytes markers and reduced white adipocytes markers in the 3T3-L1 adipocytes...
May 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28535397/quality-of-life-anxiety-and-depression-in-patients-with-hiv-aids-who-present-poor-adherence-to-antiretroviral-therapy-a-cross-sectional-study-in-salvador-brazil
#18
Mónica Narváez Betancur, Liliane Lins, Irismar Reis de Oliveira, Carlos Brites
The introduction of highly active antiretroviral therapy marked a major gain in efficacy of HIV/AIDS treatment and a reduction in morbidity and mortality of the infected patients. However, high levels of adherence are required to obtain virologic suppression. In Brazil, the policy of free and universal access to antiretroviral therapy has been in place since 1996, although there are reports of poor adherence. OBJECTIVE: To define the clinical, demographic and psychological characteristics, and quality of life of patients with HIV/AIDS who present poor adherence to highly active antiretroviral therapy...
May 20, 2017: Brazilian Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28500735/increased-expression-of-cd38-and-hladr-in-hiv-infected-patients-with-oral-lesion
#19
Liliane Lins, Érica Farias, Clara Brites-Alves, Alex Torres, Eduardo M Netto, Carlos Brites
Persistent immune actiation is associated with innadequate immune recovery in HIV-patients. This study assessed the relationship between frequency of expression of cell activation markers (CD38 and HLADR) and presence of oral lesions in HIV-1 infected patients. Fifty-seven HIV-infected persons, undergoing antiretroviral treatment, were divided into three groups, according to the number of CD4(+) T cells and CD4(+) /CD8(+) ratio: adequate, partial, and inadequate immune restauration. All patients underwent full mouth assessments for saliva flow measurement, oral mucosal lesion, periodontal disease, and severity of periodontitis...
May 13, 2017: Journal of Medical Virology
https://www.readbyqxmd.com/read/28498891/adipose-tissue-depots-and-inflammation-effects-on-plasticity-and-resident-mesenchymal-stem-cell-function
#20
Lina Badimon, Judit Cubedo
Adipose tissue (AT) is a highly heterogeneous organ. Beside the heterogeneity associated to different tissue types (white, brown and "brite") and its location-related heterogeneity (subcutaneous, visceral, epicardial, and perivascular, etc), AT composition, structure and functionality is highly dependent on individual-associated factors. As such, the pro-inflammatory state associated to the presence of obesity and other cardiovascular risk factors directly affects AT metabolism. Furthermore, the adipose-derived stem cells (ASCs) that reside in the stromal vascular fraction (SVF) of AT, besides being responsible for most of the plasticity attributed to AT, is an additional source of heterogeneity...
May 11, 2017: Cardiovascular Research
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