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https://www.readbyqxmd.com/read/28220393/common-and-distinct-regulation-of-human-and-mouse-brown-and-beige-adipose-tissues-a-promising-therapeutic-target-for-obesity
#1
REVIEW
Xuejiao Liu, Christopher Cervantes, Feng Liu
Obesity, which underlies various metabolic and cardiovascular diseases, is a growing public health challenge for which established therapies are inadequate. Given the current obesity epidemic, there is a pressing need for more novel therapeutic strategies that will help adult individuals to manage their weight. One promising therapeutic intervention for reducing obesity is to enhance energy expenditure. Investigations into human brown fat and the recently discovered beige/brite fat have galvanized intense research efforts during the past decade because of their pivotal roles in energy dissipation...
February 20, 2017: Protein & Cell
https://www.readbyqxmd.com/read/28214707/shortcuts-to-a-functional-adipose-tissue-the-role-of-small-non-coding-rnas
#2
REVIEW
Bruna B Brandão, Beatriz A Guerra, Marcelo A Mori
Metabolic diseases such as type 2 diabetes are a major public health issue worldwide. These diseases are often linked to a dysfunctional adipose tissue. Fat is a large, heterogenic, pleiotropic and rather complex tissue. It is found in virtually all cavities of the human body, shows unique plasticity among tissues, and harbors many cell types in addition to its main functional unit - the adipocyte. Adipose tissue function varies depending on the localization of the fat depot, the cell composition of the tissue and the energy status of the organism...
February 7, 2017: Redox Biology
https://www.readbyqxmd.com/read/28204967/advantageous-solubility-permeability-interplay-when-using-amorphous-solid-dispersion-asd-formulation-for-the-bcs-class-iv-p-gp-substrate-rifaximin-simultaneous-increase-of-both-the-solubility-and-the-permeability
#3
Avital Beig, Noa Fine-Shamir, David Lindley, Jonathan M Miller, Arik Dahan
Rifaximin is a BCS class IV (low-solubility, low-permeability) drug and also a P-gp substrate. The aims of this work were to assess the efficiency of different rifaximin amorphous solid dispersion (ASDs) formulations in achieving and maintaining supersaturation and to investigate the consequent solubility-permeability interplay. Spray-dried rifaximin ASDs were prepared with different hydrophilic polymers and their ability to achieve and maintain supersaturation was assessed. Then, rifaximin's apparent intestinal permeability was investigated as a function of increasing supersaturation both in vitro using the parallel artificial membrane permeability assay (PAMPA) and in vivo using the single-pass rat intestinal perfusion (SPIP) model...
February 15, 2017: AAPS Journal
https://www.readbyqxmd.com/read/28201841/evaluation-of-narrow-band-imaging-signs-in-eosinophilic-and-lymphocytic-esophagitis
#4
Tamaki Ichiya, Kyosuke Tanaka, Carlos A Rubio, Ulf Hammar, Peter T Schmidt
Background and study aims No specific endoscopic signs for diagnosing eosinophilic esophagitis (EoE) have been described and very few studies have reported endoscopic signs for lymphocytic esophagitis (LyE). This study aimed to assess the utility of narrow-band imaging magnifying endoscopy (NBI-ME) in predicting EoE/LyE diagnosis before histopathological assessment. Patients and methods Adult patients with dysphagia and/or food impaction who underwent esophagogastroduodenoscopy followed by NBI-ME and biopsies were included...
February 15, 2017: Endoscopy
https://www.readbyqxmd.com/read/28197149/treatment-of-infantile-inflammatory-bowel-disease-and-autoimmunity-by-allogeneic-stem-cell-transplantation-in-lps-responsive-beige-like-anchor-deficiency
#5
Shahrzad Bakhtiar, Laura Gámez-Díaz, Andrea Jarisch, Jan Soerensen, Bodo Grimbacher, Bernd Belohradsky, Klaus-Michael Keller, Christoph Rietschel, Thomas Klingebiel, Sibylle Koletzko, Michael H Albert, Peter Bader
Inflammatory bowel disease (IBD) in young children can be a clinical manifestation of various primary immunodeficiency syndromes. Poor clinical outcome is associated with poor quality of life and high morbidity from the complications of prolonged immunosuppressive treatment and malabsorption. In 2012, mutations in the lipopolysaccharide-responsive beige-like anchor (LRBA) gene were identified as the cause of an autoimmunity and immunodeficiency syndrome. Since then, several LRBA-deficient patients have been reported with a broad spectrum of clinical manifestations without reliable predictive prognostic markers...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28178569/cellular-aging-contributes-to-failure-of-cold-induced-beige-adipocyte-formation-in-old-mice-and-humans
#6
Daniel C Berry, Yuwei Jiang, Robert W Arpke, Elizabeth L Close, Aki Uchida, David Reading, Eric D Berglund, Michael Kyba, Jonathan M Graff
No abstract text is available yet for this article.
February 7, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28178562/young-and-lean-elimination-of-senescent-cells-boosts-adaptive-thermogenesis
#7
Pablo J Fernandez-Marcos, Manuel Serrano
Thermogenesis converts the chemical energy of nutrients into heat, and this is associated to improved metabolic performance. In a previous issue of Cell Metabolism, Berry et al. (2017) reported that the progenitors of thermogenic beige adipocytes lose functionality with aging, and this process can be reversed with strategies that eliminate senescent cells.
February 7, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28154348/promoting-effect-of-%C3%AE-tocopherol-on-beige-adipocyte-differentiation-in-3t3-l1-cells-and-rat-white-adipose-tissue
#8
Rieko Tanaka-Yachi, Chie Takahashi-Muto, Kazuya Adachi, Yukina Tanimura, Yoshinori Aoki, Taisuke Koike, Chikako Kiyose
Thermogenic adipocytes that are distinct from classical brown adipocytes (beige adipocytes) were identified in 2012. Beige adipocytes are also called inducible brown adipocytes because their differentiation is induced by a number of physiological stimuli, including adrenaline or myokines. PPARγ is the master regulator of adipogenesis and promotes thermogenic adipocyte differentiation. A PPARγ agonist also promotes thermogenic adipocyte differentiation in mouse white adipose tissues. The vitamin E analog α-tocopherol promotes PPARγ expression and induces mRNA expression of target genes...
2017: Journal of Oleo Science
https://www.readbyqxmd.com/read/28151989/cd8-t-cells-protect-adult-naive-mice-from-jev-induced-morbidity-via-lytic-function
#9
Nidhi Jain, Neelam Oswal, Amanpreet Singh Chawla, Tanvi Agrawal, Moanaro Biswas, Sudhanshu Vrati, Satyajit Rath, Anna George, Vineeta Bal, Guruprasad R Medigeshi
Following Japanese encephalitis virus (JEV) infection neutralizing antibodies are shown to provide protection in a significant proportion of cases, but not all, suggesting additional components of immune system might also contribute to elicit protective immune response. Here we have characterized the role of T cells in offering protection in adult mice infected with JEV. Mice lacking α/β-T cells (TCRβ-null) are highly susceptible and die over 10-18 day period as compared to the wild-type (WT) mice which are resistant...
February 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28145475/diffuse-optical-spectroscopy-and-imaging-to-detect-and-quantify-adipose-tissue-browning
#10
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/28134088/evolving-spectrum-of-lrba-deficiency-associated-chronic-arthritis-is-there-a-causative-role-in-juvenile-idiopathic-arthritis
#11
Sulaiman M Al-Mayouf, Hamzah Naji, Khalid Alismail, Anas M Alazami, Farrukh Sheikh, Walter Conca, Hamoud Al-Mousa
Lipopolysaccharide-responsive, beige-like anchor protein (LRBA) deficiency causes common variable immunodeficiency (CVID) disorders and autoimmunity. LRBA deficiency has become a clinically variable syndrome with a wide spectrum of clinical manifestations. We report a patient with LRBA deficiency associated chronic non-erosive arthritis. This report highlights the spectrum of arthritis in such patients and the potential causative role of LRBA gene in juvenile arthritis.
January 27, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28129120/targeting-of-aberrant-%C3%AE-v%C3%AE-6-integrin-expression-in-solid-tumors-using-chimeric-antigen-receptor-engineered-t-cells
#12
Lynsey M Whilding, Ana C Parente-Pereira, Tomasz Zabinski, David M Davies, Roseanna M G Petrovic, Y Vincent Kao, Shobhit A Saxena, Alex Romain, Jose A Costa-Guerra, Shelia Violette, Hiroaki Itamochi, Sadaf Ghaem-Maghami, Sabari Vallath, John F Marshall, John Maher
Expression of the αvβ6 integrin is upregulated in several solid tumors. In contrast, physiologic expression of this epithelial-specific integrin is restricted to development and epithelial re-modeling. Here, we describe, for the first time, the development of a chimeric antigen receptor (CAR) that couples the recognition of this integrin to the delivery of potent therapeutic activity in a diverse repertoire of solid tumor models. Highly selective targeting αvβ6 was achieved using a foot and mouth disease virus-derived A20 peptide, coupled to a fused CD28(+)CD3 endodomain...
January 4, 2017: Molecular Therapy: the Journal of the American Society of Gene Therapy
https://www.readbyqxmd.com/read/28128075/under-the-surface-of-subcutaneous-adipose-tissue-biology
#13
REVIEW
Vlatka Pandžić Jakšić, Danijela Grizelj
The global obesity epidemic enhanced contemporary interest in adipose tissue biology. Two structurally and functionally distinct depots, subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT), are spread throughout the body. Their distribution was recognized to be a major determinant of metabolic risk. Unlike VAT, SAT showed some protective endocrine and inflammatory features that might explain the occurrence of obese but metabolically healthy persons. The unique developmental gene expression signature, angiogenesis, and adipogenic potential of SAT determines its growth ability under the positive energy balance...
December 2016: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/28127213/components-and-determinants-of-therapeutic-delay-in-patients-with-acute-st-elevation-myocardial-infarction-a-tertiary-care-hospital-based-study
#14
Jahangir Rashid Beig, Nisar A Tramboo, Kuldeep Kumar, Irfan Yaqoob, Imran Hafeez, Fayaz A Rather, Tariq R Shah, Hilal A Rather
BACKGROUND: Delayed reperfusion is associated with worse outcomes in ST-segment elevation myocardial infarction (STEMI). This study was conducted to assess the components and determinants of therapeutic delay in STEMI patients of our state. METHODS: This study included consecutive patients of STEMI admitted to the coronary care units of two tertiary care hospitals in Srinagar, between 2012 and 2015. Various components of treatment delay including the patient's decision to delay, referral delay, transportation delay, prehospital delay, and door-to-needle time were calculated...
January 2017: Journal of the Saudi Heart Association
https://www.readbyqxmd.com/read/28123942/fetal-development-of-subcutaneous-white-adipose-tissue-is-dependent-on-zfp423
#15
Mengle Shao, Chelsea Hepler, Lavanya Vishvanath, Karen A MacPherson, Napoleon C Busbuso, Rana K Gupta
OBJECTIVE: Zfp423 is a multi zinc-finger transcription factor expressed in preadipocytes and mature adipocytes in vivo. Our recent work has revealed a critical role for Zfp423 in maintaining the fate of white adipocytes in adult mice through suppression of the beige cell thermogenic gene program; loss of Zfp423 in mature adipocytes of adult mice results in a white-to-beige phenotypic switch. However, the exact requirements of Zfp423 in the fetal stages of early adipose development in vivo have not been clarified...
January 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28123941/conserved-function-of-the-long-noncoding-rna-blnc1-in-brown-adipocyte-differentiation
#16
Lin Mi, Xu-Yun Zhao, Siming Li, Gongshe Yang, Jiandie D Lin
OBJECTIVE: Long noncoding RNAs (lncRNAs) are emerging as important regulators of diverse biological processes. Recent work has demonstrated that the inducible lncRNA Blnc1 stimulates thermogenic gene expression during brown and beige adipocyte differentiation. However, whether Blnc1 is functionally conserved in humans has not been explored. In addition, the molecular basis of the Blnc1 ribonucleoprotein complex in thermogenic gene induction remains incompletely understood. The aims of the current study were to: i) investigate functional conservation of Blnc1 in mice and humans and ii) elucidate the molecular mechanisms by which Blnc1 controls the thermogenic gene program in brown adipocytes...
January 2017: Molecular Metabolism
https://www.readbyqxmd.com/read/28123330/the-plethora-clinical-manifestations-and-treatment-options-of-autoimmunity-in-patients-with-primary-immunodeficiency
#17
Hatice Ezgi Barış, Ayça Kıykım, Ercan Nain, Ahmet Oğuzhan Özen, Elif Karakoç-Aydıner, Safa Barış
AIM: Although the association between primary immunodeficiency and autoimmunity is already well-known, it has once again become a topic of debate with the discovery of newly-defined immunodeficiencies. Thus, investigation of the mechanisms of development of autoimmunity in primary immunodefficiency and new target-specific therapeutic options has come to the fore. In this study, we aimed to examine the clinical findings of autoimmunity, autoimmunity varieties, and treatment responses in patients who were genetically diagnosed as having primary immunodeficiency...
December 2016: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28123139/remodeling-of-rat-stromal-vascular-cells-to-brite-beige-adipocytes-by-prolyl-hydroxyproline
#18
Jun A Minaguchi, Sakino Ogata, Naoki Takahashi, Takuya Hirose, Hiromi Ueda, Kazushige Takehana
The aim of this study was to determine the effects of prolyl-hydroxyproline (Pro-Hyp) on the proliferation and differentiation of rat stromal-vascular cells (SVCs) being cultured in a medium with (Pro-Hyp group) or without Pro-Hyp (control group). The results showed that there was no significant difference in proliferation rate of SVCs, lipid droplet (LD) diameter or intracellular concentration of triglycerides between two groups. However, the diameter range of LDs in the Pro-Hyp group tended to be smaller than that in the control group...
January 26, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28109720/ucp1-in-adipose-tissues-two-steps-to-full-browning
#19
Anastasia V Kalinovich, Jasper M A de Jong, Barbara Cannon, Jan Nedergaard
The possibility that brown adipose tissue thermogenesis can be recruited in order to combat the development of obesity has led to a high interest in the identification of "browning agents", i.e. agents that increase the amount and activity of UCP1 in brown and brite/beige adipose tissues. However, functional analysis of the browning process yields confusingly different results when the analysis is performed in one of two alternative steps. Thus, in one of the steps, using cold acclimation as a potent model browning agent, we find that if the browning process is followed in mice initially housed at 21 °C (the most common procedure), there is only weak molecular evidence for increases in UCP1 gene expression or UCP1 protein abundance in classical brown adipose tissue; however, in brite/beige adipose depots, there are large increases, apparently associating functional browning with events only in the brite/beige tissues...
March 2017: Biochimie
https://www.readbyqxmd.com/read/28109208/psychromonas-aquatilis-sp-nov-isolated-from-water-samples-obtained-in-the-chilean-antarctica
#20
Peter Kämpfer, Rute Irgang, Mathías Poblete-Morales, Stefanie P Glaeser, Marcelo Cortez-San Martín, Ruben Avendaño-Herrera
One slightly beige-white pigmented, Gram-staining negative, rod-shaped bacterium, strain M1A1T, was isolated from seawater samples obtained in Fildes Bay, Antarctica (62º12´S, 58º57´W). Phylogenetic analysis based on nearly full-length 16S rRNA gene sequences showed that the isolate shared 98.4 % 16S rRNA gene sequence identity to the type strain of the species Psychromonas arctica, but less than 97 % 16S rRNA gene sequence similarities to all other Psychromonas species. DNA-DNA hybridisation (DDH) with Psychromonas arctica DSM 14288T showed low values (21 %, reciprocal 27 %)...
January 19, 2017: International Journal of Systematic and Evolutionary Microbiology
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