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https://www.readbyqxmd.com/read/29786471/the-effects-of-polyphenol-supplementation-on-adipose-tissue-morphology-and-gene-expression-in-overweight-and-obese-humans
#1
Jasper Most, Ines Warnke, Mark V Boekschoten, Johan W E Jocken, Philip de Groot, Angelika Friedel, Igor Bendik, Gijs H Goossens, Ellen E Blaak
Dietary polyphenols have beneficial effects on adipose tissue mass and function in rodents, but human studies are scarce. In a randomized, placebo-controlled study, 25 (10 women) overweight and obese humans received a combination of the polyphenols epigallocatechin-gallate and resveratrol (282 mg/d, 80 mg/d, respectively, EGCG+RES, n = 11) or placebo (PLA, n = 14) supplementation for 12 weeks. Abdominal subcutaneous adipose tissue (SAT) biopsies were collected for assessment of adipocyte morphology and micro-array analysis...
May 1, 2018: Adipocyte
https://www.readbyqxmd.com/read/29785760/thyroid-function-in-hidradenitis-suppurativa-a-population-based-cross-sectional-study-from-denmark
#2
I M Miller, G Vinding, H A Sørensen, H Rytgaard, U B Mogensen, C Ellervik, G B Jemec
BACKGROUND: Hidradenitis suppurativa (HS) is a chronic inflammatory disease. Numerous studies have associated HS with obesity, and recently with metabolic syndrome (MetS). Both obesity and MetS are linked with metabolic changes. Thyroid hormones play a central role in metabolism and exert pleiotropic effects on adipogenesis and the basal metabolism of lipids and glucose. We hypothesized that patients with HS have an altered or dysfunctional metabolism expressed as thyroid function. AIM: To investigate thyroid function in individuals with HS compared with healthy controls (HCs)...
May 21, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29784189/corrigendum-to-secoisolariciresinol-diglucoside-inhibits-adipogenesis-through-the-ampk-pathway-european-journal-of-pharmacology-2018-820-235-244
#3
JongWook Kang, Jinbong Park, Hye-Lin Kim, Yunu Jung, Dong-Hyun Youn, Seona Lim, Gahee Song, Hyewon Park, Jong Sik Jin, Hyun Jeong Kwak, Jae-Young Um
No abstract text is available yet for this article.
July 5, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29782964/an-in-vitro-approach-for-prioritization-and-evaluation-of-chemical-effects-on-glucocorticoid-receptor-mediated-adipogenesis
#4
Jessica K Hartman, Tyler Beames, Bethany Parks, Daniel Doheny, Gina Song, Alina Efremenko, Miyoung Yoon, Briana Foley, Chad Deisenroth, Patrick D McMullen, Rebecca A Clewell
Rising obesity rates worldwide have socio-economic ramifications. While genetics, diet, and lack of exercise are major contributors to obesity, environmental factors may enhance susceptibility through disruption of hormone homeostasis and metabolic processes. The obesogen hypothesis contends that chemical exposure early in development may enhance adipocyte differentiation, thereby increasing the number of adipocytes and predisposing for obesity and metabolic disease. We previously developed a primary human adipose stem cell (hASC) assay to evaluate the effect of environmental chemicals on PPARG-dependent adipogenesis...
May 18, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29782940/defining-osteoblast-and-adipocyte-lineages-in-the-bone-marrow
#5
J L Pierce, D L Begun, J J Westendorf, M E McGee-Lawrence
Bone is a complex endocrine organ that facilitates structural support, protection to vital organs, sites for hematopoiesis, and calcium homeostasis. The bone marrow microenvironment is a heterogeneous niche consisting of multipotent musculoskeletal and hematopoietic progenitors and their derivative terminal cell types. Amongst these progenitors, bone marrow mesenchymal stem/stromal cells (BMSCs) may differentiate into osteogenic, adipogenic, myogenic, and chondrogenic lineages to support musculoskeletal development as well as tissue homeostasis, regeneration and repair during adulthood...
May 18, 2018: Bone
https://www.readbyqxmd.com/read/29782939/global-deletion-of-tetraspanin-cd82-attenuates-bone-growth-and-enhances-bone-marrow-adipogenesis
#6
Alexis Bergsma, Sourik S Ganguly, Daniel Dick, Bart O Williams, Cindy K Miranti
CD82 is a widely expressed member of the tetraspanin family of transmembrane proteins known to control cell signaling, adhesion, and migration. Tetraspanin CD82 is induced over 9-fold during osteoclast differentiation in vitro; however, its role in bone homeostasis is unknown. A globally deleted CD82 mouse model was used to assess the bone phenotype. Based on microCT and 4-point bending tests, CD82-deficient bones are smaller in diameter and weaker, but display no changes in bone density. Histomorphometry shows a decrease in size, erosion perimeter, and number of osteoclasts in situ, with a corresponding increase in trabecular surface area, specifically in male mice...
May 18, 2018: Bone
https://www.readbyqxmd.com/read/29777756/peroxiredoxin-5-regulates-adipogenesis-attenuating-oxidative-stress-in-obese-mouse-models-induced-by-a-high-fat-diet
#7
Mi Hye Kim, Sun-Ji Park, Jung-Hak Kim, Jung Bae Seong, Kyung-Min Kim, Hyun Ae Woo, Dong-Seok Lee
Elevated levels of reactive oxygen species (ROS) are a hallmark of obesity. Peroxiredoxin 5 (Prx5), which is a cysteine-dependent peroxidase enzyme, has an intensive ROS scavenging activity because it is located in the cytosol and mitochondria. Therefore, we focused on the role of Prx5 in regulating mitochondrial ROS and adipogenesis. We demonstrated that Prx5 expression was upregulated during adipogenesis and Prx5 overexpression suppressed adipogenesis by regulating cytosolic and mitochondrial ROS generation...
May 16, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29776607/differentiation-of-equine-bone-marrow-derived-mesenchymal-stem-cells-increases-the-expression-of-immunogenic-genes
#8
Laura Barrachina, Ana Rosa Remacha, Antonio Romero, Pilar Zaragoza, Francisco José Vázquez, Clementina Rodellar
Mesenchymal stem cells (MSCs) are a promising treatment for equine musculoskeletal injuries because of their ability to regulate the inflammation and to differentiate into other cell types. Since interest in allogeneic therapy is rising, concerns about MSC immunogenicity need to be addressed. Differentiated MSCs from several species increase their expression of immunogenic molecules and induce alloresponses, but equine MSC immunogenic profile after differentiation has not been reported. Therefore, the aim of this study was to assess the gene expression of immunogenic markers in tri-lineage differentiated equine bone marrow derived MSCs (eBM-MSCs)...
June 2018: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/29775748/microrna-204-5p-regulates-3t3-l1-preadipocyte-proliferation-apoptosis-and-differentiation
#9
Jingjing Du, Peiwen Zhang, Mailin Gan, Xue Zhao, Yan Xu, Qiang Li, Yanzhi Jiang, Guoqing Tang, Mingzhou Li, Jinyong Wang, Xuewei Li, Shunhua Zhang, Li Zhu
Obesity due to excessive lipid accumulation is closely associated with metabolic diseases such as type 2 diabetes, insulin resistance and inflammation. Therefore, a detailed understanding of the molecular mechanisms that underlie adipogenesis is crucial to develop treatments for diseases related to obesity. Here, we found that the microRNA-204-5p (miR-204-5p) was expressed at low levels in fat tissues from obese mice fed long-term with a high-fat diet (HFD). Overexpression or inhibition of miR-204-5p in vitro in 3T3-L1 preadipocytes significantly inhibited or promoted 3T3-L1 proliferation, respectively, an effect mediated by regulating cell proliferation factors...
May 15, 2018: Gene
https://www.readbyqxmd.com/read/29775611/reduced-adiposity-by-compensatory-wat-browning-upon-ibat-removal-in-mice
#10
Zhengyu Piao, Baiqiang Zhai, Xiaoxiao Jiang, Meng Dong, Changguo Yan, Jun Lin, Wanzhu Jin
The strong effects of classic brown adipose tissue (BAT) and recruited beige adipocytes in treatment of obesity and metabolic syndrome have been attracting increasing research interest. Cold treatment is an effective, convenient approach to stimulate BAT activity and induce white adipose tissue (WAT) browning. Here, we utilized prolonged cold exposure (from 2 h to 2 weeks in a 4° cold chamber) to elucidate dynamic changes in BAT and in WAT browning during acute and chronic cold exposure in mice. BAT mass decreased quickly, with reduced lipid droplet sizes within 8 h of cold exposure owing to the utilization of BAT pre-storage triglycerides, and subsequently increased during prolonged cold exposure...
May 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29773163/epicardial-adipose-tissue-may-mediate-deleterious-effects-of-obesity-and-inflammation-on-the-myocardium
#11
REVIEW
Milton Packer
Epicardial adipose tissue has unique properties that distinguish it from other depots of visceral fat. Rather than having distinct boundaries, the epicardium shares an unobstructed microcirculation with the underlying myocardium, and in healthy conditions, produces cytokines that nourish the heart. However, in chronic inflammatory disorders (especially those leading to heart failure with preserved ejection fraction), the epicardium becomes a site of deranged adipogenesis, leading to the secretion of proinflammatory adipokines that can cause atrial and ventricular fibrosis...
May 22, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29771917/the-differentiation-of-preadipocytes-and-gene-expression-related-to-adipogenesis-in-ducks-anas-platyrhynchos
#12
Shasha Wang, Yang Zhang, Qi Xu, Xiaoya Yuan, Wangcheng Dai, Xiaokun Shen, Zhixiu Wang, Guobin Chang, Zhiquan Wang, Guohong Chen
Meat quality is closely related to adipose tissues in ducks, and adipogenesis is controlled by a complex network of transcription factors tightly acting at different stages of differentiation especially in ducks. The aim of this study was to establish the preadipocyte in vitro culture system and understand the biological characteristics of expansion of duck adipocyte tissue at the cellular and molecular level. We isolated pre-adipocytes from the subcutaneous fat of three breeds of duck and differentiated them into mature adipocytes using a mixture of insulin, rosiglitazone, dexamethasone, 3-isobutyl-1-methylxanthine, and oleic acid over 0,2, 4, 6, and 8 days...
2018: PloS One
https://www.readbyqxmd.com/read/29771444/low-level-laser-irradiation-promotes-the-differentiation-of-bone-marrow-stromal-cells-into-osteoblasts-through-the-apn-wnt-%C3%AE-catenin-pathway
#13
R-F Zhang, Q Wang, A-A Zhang, J-G Xu, L-D Zhai, X-M Yang, X-T Liu
OBJECTIVE: The relationship between adiponectin (APN) pathway and Wnt pathway was explored through BMSCs, and the effect of low-level laser irradiation (LLLI) on bone marrow stromal cells (BMSCs) and its mechanism were further studied. MATERIALS AND METHODS: 3-week-old Sprague-Dawley (SD) rats were selected, and mesenchymal stem cells were separately cultured and purified. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay was used to analyze cell proliferation...
May 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29768199/the-autism-related-protein-chd8-cooperates-with-c-ebp%C3%AE-to-regulate-adipogenesis
#14
Yasuyuki Kita, Yuta Katayama, Taichi Shiraishi, Takeru Oka, Tetsuya Sato, Mikita Suyama, Yasuyuki Ohkawa, Keishi Miyata, Yuichi Oike, Michiko Shirane, Masaaki Nishiyama, Keiichi I Nakayama
The gene encoding the chromatin remodeler CHD8 is the most frequently mutated gene in individuals with autism spectrum disorder (ASD). Heterozygous mutations in CHD8 give rise to ASD that is often accompanied by macrocephaly, gastrointestinal complaints, and slender habitus. Whereas most phenotypes of CHD8 haploinsufficiency likely result from delayed neurodevelopment, the mechanism underlying slender habitus has remained unknown. Here, we show that CHD8 interacts with CCAAT/enhancer-binding protein β (C/EBPβ) and promotes its transactivation activity during adipocyte differentiation...
May 15, 2018: Cell Reports
https://www.readbyqxmd.com/read/29766503/transcriptome-analysis-of-potential-mirna-involved-in-adipogenic-differentiation-of-c2c12-myoblasts
#15
Ye Hou, Liangliang Fu, Jingjin Li, Jingxuan Li, Yunxia Zhao, Yu Luan, An Liu, Huiying Liu, Xinyun Li, Shuhong Zhao, Changchun Li
>Emerging evidence indicates that microRNA (miRNA) plays an important role in adipogenesis and disease pathogenesis. To investigate the miRNA involved in regulating different periods of adipogenesis, we performed a comprehensive study on microRNAome during the stimulation of adipogenesis by an adipogenic differentiation cocktail in C2C12 myoblasts at 0, 2, 4, and 7 days using the Solexa sequencing technology. In this study, we identified 52 differentially expressed (DE) miRNA. Functional annotation indicated that the target genes of DE miRNA were mostly enriched in adipogenic transdifferentiation and fat metabolism-related pathways, including Wnt, mitogen-activated protein kinase (MAPK), and insulin signaling...
May 16, 2018: Lipids
https://www.readbyqxmd.com/read/29765418/isolation-and-characterisation-of-mesenchymal-stem-cells-from-rat-bone-marrow-and-the-endosteal-niche-a-comparative-study
#16
Norhayati Yusop, Paul Battersby, Amr Alraies, Alastair J Sloan, Ryan Moseley, Rachel J Waddington
Within bone, mesenchymal stromal cells (MSCs) exist within the bone marrow stroma (BM-MSC) and the endosteal niche, as cells lining compact bone (CB-MSCs). This study isolated and characterised heterogeneous MSC populations from each niche and subsequently investigated the effects of extensive cell expansion, analysing population doublings (PDs)/cellular senescence, colony-forming efficiencies (CFEs), MSC cell marker expression, and osteogenic/adipogenic differentiation. CB-MSCs and BM-MSCs demonstrated similar morphologies and PDs, reaching 100 PDs...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29764980/interplay-of-cell-cell-contacts-and-rhoa-mrtf-a-signaling-regulates-cardiomyocyte-identity
#17
Tatjana Dorn, Jessica Kornherr, Elvira I Parrotta, Dorota Zawada, Harold Ayetey, Gianluca Santamaria, Laura Iop, Elisa Mastantuono, Daniel Sinnecker, Alexander Goedel, Ralf J Dirschinger, Ilaria My, Svenja Laue, Tarik Bozoglu, Christian Baarlink, Tilman Ziegler, Elisabeth Graf, Rabea Hinkel, Giovanni Cuda, Stefan Kääb, Andrew A Grace, Robert Grosse, Christian Kupatt, Thomas Meitinger, Austin G Smith, Karl-Ludwig Laugwitz, Alessandra Moretti
Cell-cell and cell-matrix interactions guide organ development and homeostasis by controlling lineage specification and maintenance, but the underlying molecular principles are largely unknown. Here, we show that in human developing cardiomyocytes cell-cell contacts at the intercalated disk connect to remodeling of the actin cytoskeleton by regulating the RhoA-ROCK signaling to maintain an active MRTF/SRF transcriptional program essential for cardiomyocyte identity. Genetic perturbation of this mechanosensory pathway activates an ectopic fat gene program during cardiomyocyte differentiation, which ultimately primes the cells to switch to the brown/beige adipocyte lineage in response to adipogenesis-inducing signals...
May 15, 2018: EMBO Journal
https://www.readbyqxmd.com/read/29763457/overlap-in-signaling-between-smoothened-and-the-%C3%AE-subunit-of-the-heterotrimeric-g-protein-g13
#18
Xueshui Guo, Natalia A Riobo-Del Galdo, Eun Ji Kim, Gregory R Grant, David R Manning
The Hedgehog family of morphogens has long been known to utilize, through the 7-transmembrane protein Smoothened (Smo), the heterotrimeric G protein Gi in both canonical and noncanonical forms of signaling. Other G proteins, while not specifically utilized by Smo, may nonetheless provide access to some of the events controlled by it. We reported several years ago that the G protein G13 activates one or more forms of the Gli family of transcription factors. While the Gli transcription factors are well known targets for Smo, the uncertain mechanism of activation by G13 and the identity of the targeted Gli(s) limited predictions as to the extent to which G13 might mimic Smo's actions...
2018: PloS One
https://www.readbyqxmd.com/read/29760827/transcriptome-analysis-of-orbital-adipose-tissue-in-active-thyroid-eye-disease-using-next-generation-rna-sequencing-technology
#19
Bradford W Lee, Virender B Kumar, Pooja Biswas, Audrey C Ko, Ramzi M Alameddine, David B Granet, Radha Ayyagari, Don O Kikkawa, Bobby S Korn
Objective: This study utilized Next Generation Sequencing (NGS) to identify differentially expressed transcripts in orbital adipose tissue from patients with active Thyroid Eye Disease (TED) versus healthy controls. Method: This prospective, case-control study enrolled three patients with severe, active thyroid eye disease undergoing orbital decompression, and three healthy controls undergoing routine eyelid surgery with removal of orbital fat. RNA Sequencing (RNA-Seq) was performed on freshly obtained orbital adipose tissue from study patients to analyze the transcriptome...
2018: Open Ophthalmology Journal
https://www.readbyqxmd.com/read/29758496/cord-blood-concentrations-of-leptin-zinc-%C3%AE-2-glycoprotein-and-adiponectin-and-adiposity-gain-during-the-first-3-mo-of-life
#20
Verônica L V Euclydes, Natalia P Castro, Lourdes R Lima, Cyro Brito, Laisa Ribeiro, Fernanda Agapito Simões, Guaraci Requena, Liania Alves Luzia, Patricia Helen Rondó
OBJECTIVES: Adipose tissue development starts in intrauterine life and cytokines are involved in this process. Therefore, understanding the role of cytokines in the fat mass gain of infants is crucial to prevent obesity later in life. Furthermore, recent evidence indicates a sex-specific link between cytokines and adipose tissue development. The objective of this study was to assess sex-specific relationships of cord blood concentrations of the cytokines leptin, zinc-α2-glycoprotein (ZAG), and adiponectin with infant adiposity during the first 3 mo of life...
March 22, 2018: Nutrition
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