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https://www.readbyqxmd.com/read/28528367/evaluating-the-role-of-autologous-mesenchymal-stem-cell-seeded-on-decellularized-pericardium-in-the-treatment-of-myocardial-infarction-an-animal-study
#1
Abdol-Mohammad Kajbafzadeh, Seyed Hossein Ahmadi Tafti, Reza Khorramirouz, Shabnam Sabetkish, Seyedeh Maryam Kameli, Saghar Orangian, Shahram Rabbani, Nasim Oveisi, Marziyeh Golmohammadi, Zeynab Kashani
Inappropriate left ventricular remodeling following myocardial infarction (MI) can result in subsequent severe dysfunction. In this study, we tested the hypothesis that decellularized pericardium (DP) or seeded pericardial patch with autologous adipose-derived mesenchymal stem cells (ADMSCs) could be safely used in a MI scar and could improve heart function. Twelve rabbits were randomly divided into three equal groups. Four weeks after MI induction by ligation of the left anterior descending artery in 12 rabbits, animals of G1 (n = 4) received DP patch with labeled ADMSCs...
May 20, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28520765/an-integrative-analysis-of-tissue-specific-transcriptomic-and-metabolomic-responses-to-short-term-dietary-methionine-restriction-in-mice
#2
Sujoy Ghosh, Laura A Forney, Desiree Wanders, Kirsten P Stone, Thomas W Gettys
Dietary methionine restriction (MR) produces a coordinated series of transcriptional responses in peripheral tissues that limit fat accretion, remodel lipid metabolism in liver and adipose tissue, and improve overall insulin sensitivity. Hepatic sensing of reduced methionine leads to induction and release of fibroblast growth factor 21 (FGF21), which acts centrally to increase sympathetic tone and activate thermogenesis in adipose tissue. FGF21 also has direct effects in adipose to enhance glucose uptake and oxidation...
2017: PloS One
https://www.readbyqxmd.com/read/28495953/cardiometabolic-traits-and-systolic-mechanics-in-the-community
#3
Jennifer E Ho, Elizabeth L McCabe, Thomas J Wang, Martin G Larson, Daniel Levy, Connie Tsao, Jayashri Aragam, Gary F Mitchell, Emelia J Benjamin, Ramachandran S Vasan, Susan Cheng
BACKGROUND: Obesity and cardiometabolic dysfunction are associated with increased risk of heart failure and other cardiovascular diseases. We sought to examine the association of cardiometabolic traits with left ventricular (LV) cardiac mechanics. We hypothesized that specific obesity-related phenotypes are associated with distinct aspects of LV strain. METHODS AND RESULTS: We evaluated the associations of obesity-related phenotypes, including central adiposity, diabetes mellitus, insulin resistance, and circulating adipokine concentrations with echocardiographic measures of LV mechanical function among participants of the Framingham Heart Study Offspring and Third Generation cohorts...
May 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28492873/sphingosine-1-phosphate-mediates-fibrosis-in-orbital-fibroblasts-in-graves-orbitopathy
#4
JaeSang Ko, Min Kyoung Chae, Joon H Lee, Eun Jig Lee, Jin Sook Yoon
Purpose: To investigate the effect of sphingosine-1-phosphate (S1P) on fibrosis in orbital fibroblasts in Graves' orbitopathy (GO). Methods: Orbital fibroblasts were cultured from orbital adipose/connective tissues of patients with GO and healthy control subjects. Effects of treatment with TGF-β and cigarette smoke extract (CSE) on S1P receptor (S1PR) messenger RNA (mRNA) and S1P expression were evaluated by real-time polymerase chain reaction and Western blotting...
May 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28484594/adipose-tissue-lipolysis-and-remodeling-during-the-transition-period-of-dairy-cows
#5
REVIEW
G Andres Contreras, Clarissa Strieder-Barboza, William Raphael
Elevated concentrations of plasma fatty acids in transition dairy cows are significantly associated with increased disease susceptibility and poor lactation performance. The main source of plasma fatty acids throughout the transition period is lipolysis from adipose tissue depots. During this time, plasma fatty acids serve as a source of calories mitigating the negative energy balance prompted by copious milk synthesis and limited dry matter intake. Past research has demonstrated that lipolysis in the adipose organ is a complex process that includes not only the activation of lipolytic pathways in response to neural, hormonal, or paracrine stimuli, but also important changes in the structure and cellular distribution of the tissue in a process known as adipose tissue remodeling...
2017: Journal of Animal Science and Biotechnology
https://www.readbyqxmd.com/read/28476619/trb3-gene-silencing-activates-ampk-in-adipose-tissue-with-beneficial-metabolic-effects-in-obese-and-diabetic-rats
#6
Xiaoyan Sun, Ming Song, Hui Wang, Huimin Zhou, Feng Wang, Ya Li, Yun Zhang, Wei Zhang, Ming Zhong, Yun Ti
Our previous study had suggested Tribbles homolog 3 (TRB3) might be involved in metabolic syndrome via adipose tissue. Given prior studies, we sought to determine whether TRB3 plays a major role in adipocytes and adipose tissue with beneficial metabolic effects in obese and diabetic rats. Fully differentiated 3T3-L1 adipocytes were incubated to induce insulin resistant adipocytes. Forty male Sprague-Dawley rats were all fed high-fat (HF) diet. Type 2 diabetic rat model was induced by high-fat diet and low-dose streptozotocin (STZ)...
June 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28472935/gene-expression-profile-during-proliferation-and-differentiation-of-rainbow-trout-adipocyte-precursor-cells
#7
Marta Bou, Jerôme Montfort, Aurélie Le Cam, Cécile Rallière, Véronique Lebret, Jean-Charles Gabillard, Claudine Weil, Joaquim Gutiérrez, Pierre-Yves Rescan, Encarnación Capilla, Isabel Navarro
BACKGROUND: Excessive accumulation of adipose tissue in cultured fish is an outstanding problem in aquaculture. To understand the development of adiposity, it is crucial to identify the genes which expression is associated with adipogenic differentiation. Therefore, the transcriptomic profile at different time points (days 3, 8, 15 and 21) along primary culture development of rainbow trout preadipocytes has been investigated using an Agilent trout oligo microarray. RESULTS: Our analysis identified 4026 genes differentially expressed (fold-change >3) that were divided into two major clusters corresponding to the main phases observed during the preadipocyte culture: proliferation and differentiation...
May 4, 2017: BMC Genomics
https://www.readbyqxmd.com/read/28462460/combined-administration-of-ascs-and-bmp-12-promotes-an-m2-macrophage-phenotype-and-enhances-tendon-healing
#8
Richard H Gelberman, Stephen W Linderman, Rohith Jayaram, Anna D Dikina, Shelly Sakiyama-Elbert, Eben Alsberg, Stavros Thomopoulos, Hua Shen
BACKGROUND: Outcomes after intrasynovial tendon repair are highly variable. An intense inflammatory cascade followed by a delayed healing response can cause adhesion formation and repair-site failure that severely impair the function of repaired digits. No effective remedies exist to fully address these issues. Cell- and growth factor-based therapies have been shown to modulate inflammation and improve cell proliferation and matrix synthesis and therefore are promising treatment approaches for intrasynovial tendon repair...
May 1, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28448588/allogeneic-pasc-transplantation-in-humanized-pigs-attenuates-cardiac-remodeling-post-myocardial-infarction
#9
Rafael Dariolli, Marcus V Naghetini, Euclydes F Marques, Celso K Takimura, Leonardo S Jensen, Bianca Kiers, Jeane M Tsutsui, Wilson Mathias, Pedro A Lemos Neto, Jose E Krieger
Cell therapy repair strategies using adult mesenchymal stromal cells have shown promising evidence to prevent cardiac deterioration in rodents even in the absence of robust differentiation of the cells into cardiomyocytes. We tested whether increasing doses of porcine adipose-tissue derived mesenchymal stem cells (pASCs) increase cardiac tissue perfusion in pigs post-myocardial infarction (MI) receiving angiotensin-converting-enzyme inhibitor (ACE inhibitors) and Beta-blockers similarly to patients. Female pigs were subjected to MI induction by sponge permanent occlusion of left circumflex coronary artery (LCx) generating approximately 10% of injured LV area with minimum hemodynamic impact...
2017: PloS One
https://www.readbyqxmd.com/read/28438306/relation-of-quantity-of-subepicardial-adipose-tissue-to-infarct-size-in-patients-with-st-elevation-myocardial-infarction
#10
Loïc Bière, Vianney Behaghel, Victor Mateus, Antonildes Assunção, Christoph Gräni, Kais Ouerghi, Sylvain Grall, Serge Willoteaux, Fabrice Prunier, Raymond Kwong, Alain Furber
According to the so-called obesity paradox, obesity might present a protective role in patients with myocardial infarction. We aimed to assess the influence of the epicardial adipose tissue (EAT) volume on cardiac healing and remodeling in patients with acute ST-elevation myocardial infarction. We prospectively included 193 consecutive patients presenting a first STEMI without known coronary artery disease. Cardiac magnetic resonance imaging was performed at baseline and after a 3-month follow-up. EAT volume was computed, and the population was divided into quartiles: the highest quartile of EAT defining the high EAT group (h-EAT)...
March 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28428261/ebf2-transcriptionally-regulates-brown-adipogenesis-via-the-histone-reader-dpf3-and-the-baf-chromatin-remodeling-complex
#11
Suzanne N Shapira, Hee-Woong Lim, Sona Rajakumari, Alexander P Sakers, Jeff Ishibashi, Matthew J Harms, Kyoung-Jae Won, Patrick Seale
The transcription factor early B-cell factor 2 (EBF2) is an essential mediator of brown adipocyte commitment and terminal differentiation. However, the mechanisms by which EBF2 regulates chromatin to activate brown fat-specific genes in adipocytes were unknown. ChIP-seq (chromatin immunoprecipitation [ChIP] followed by deep sequencing) analyses in brown adipose tissue showed that EBF2 binds and regulates the activity of lineage-specific enhancers. Mechanistically, EBF2 physically interacts with the chromatin remodeler BRG1 and the BAF chromatin remodeling complex in brown adipocytes...
April 1, 2017: Genes & Development
https://www.readbyqxmd.com/read/28425841/adipocyte-hypertrophy-hyperplasia-balance-contributes-to-weight-loss-after-bariatric-surgery
#12
Lindsey A Muir, Nicki A Baker, Alexandra R Washabaugh, Christopher K Neeley, Carmen G Flesher, Jennifer B DelProposto, Lynn M Geletka, Amir A Ghaferi, Jonathan F Finks, Kanakadurga Singer, Oliver A Varban, Carey N Lumeng, Robert W O'Rourke
Predictors of weight loss responses are not well-defined. We hypothesized that adipose tissue phenotypic features related to remodeling would be associated with bariatric surgery weight loss responses. Visceral and subcutaneous adipose tissues collected from patients during bariatric surgery were studied with flow cytometry, immunohistochemistry, and QRTPCR, and results correlated with weight loss outcomes. Age, male sex, and a diagnosis of type 2 diabetes were associated with less weight loss. Adipocyte size was increased and preadipocyte frequency was decreased in visceral adipose tissue from diabetic subjects...
January 27, 2017: Adipocyte
https://www.readbyqxmd.com/read/28425576/bone-marrow-adipose-and-lung-tissue-derived-murine-mesenchymal-stromal-cells-release-different-mediators-and-differentially-affect-airway-and-lung-parenchyma-in-experimental-asthma
#13
Soraia C Abreu, Mariana A Antunes, Debora G Xisto, Fernanda F Cruz, Vivian C Branco, Elga Bandeira, Jamil Zola Kitoko, Almair F de Araújo, Ludmilla Dellatorre-Texeira, Priscilla C Olsen, Daniel J Weiss, Bruno L Diaz, Marcelo M Morales, Patricia R M Rocco
Mesenchymal stromal cells (MSCs) from different sources have differential effects on lung injury. To compare the effects of murine MSCs from bone marrow (BM), adipose tissue (AD), and lung tissue (LUNG) on inflammatory and remodeling processes in experimental allergic asthma, female C57BL/6 mice were sensitized and challenged with ovalbumin (OVA) or saline (C). Twenty-four hours after the last challenge, mice received either saline (50 µl, SAL), BM-MSCs, AD-MSCs, or LUNG-MSCs (10(5) cells per mouse in 50 µl total volume) intratracheally...
April 20, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28422570/an-induced-adipocyte-sheet-reduces-inflammatory-reactions-during-remodeling-of-xenogeneic-scaffolds-in-vivo
#14
Tong Yi, Qiang Wang, Fan Fan, Gouhui Fan
Surgical therapy of cardiovascular diseases frequently requires replacement of diseased tissues with prosthetic devices or grafts. Calcification is the main reason for the degeneration of implanted grafts. However, some factors reduce stenosis and attenuate calcification of implanted grafts. In this study, we used an autologous induced adipocyte cell-sheet (IACS) as a drug delivery system to determine whether its secretion ability has a beneficial effect on the remodeling process of grafts in a rat subcutaneous model...
April 19, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28409151/temporal-changes-in-gene-expression-profile-during-mature-adipocyte-dedifferentiation
#15
Julie Anne Côté, Frédéric Guénard, Julie Lessard, Marc Lapointe, Simon Biron, Marie-Claude Vohl, André Tchernof
Objective. To characterize changes in gene expression profile during human mature adipocyte dedifferentiation in ceiling culture. Methods. Subcutaneous (SC) and omental (OM) adipose tissue samples were obtained from 4 participants paired for age and BMI. Isolated adipocytes were dedifferentiated in ceiling culture. Gene expression analysis at days 0, 4, 7, and 12 of the cultures was performed using Affymetrix Human Gene 2.0 STvi arrays. Hierarchical clustering according to similarity of expression changes was used to identify overrepresented functions...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28389415/g-protein-coupled-receptor-kinase-2-grk2-as-an-integrative-signalling-node-in-the-regulation-of-cardiovascular-function-and-metabolic-homeostasis
#16
REVIEW
Federico Mayor, Marta Cruces-Sande, Alba C Arcones, Rocío Vila-Bedmar, Ana M Briones, Mercedes Salaices, Cristina Murga
G protein-coupled receptor kinase 2 (GRK2) is emerging as a pivotal signalling hub able to integrate different transduction cascades. This ability appears to underlie its central role in different physiological and pathological conditions. Key mediators of cardiovascular function (such as catecholamines or angiotensin II) and components of the systemic milieu altered in insulin resistance conditions converge in increasing GRK2 levels in diverse cardiovascular cell types. In turn, GRK2 would simultaneously modulate several cardiovascular regulatory pathways, including GPCR and insulin signalling cascades, NO bioavailability and mitochondrial function...
April 4, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28386236/metabolic-response-of-visceral-white-adipose-tissue-of-obese-mice-exposed-for-5-days-to-human-room-temperature-compared-to-mouse-thermoneutrality
#17
Inge van der Stelt, Femke Hoevenaars, Jitka Široká, Lidwien de Ronde, David Friedecký, Jaap Keijer, Evert van Schothorst
Housing of laboratory mice at room temperature (22°C) might be considered a constant cold stress, which induces a thermogenic program in brown adipose tissue (BAT). However, the early adaptive response of white adipose tissue (WAT), the fat storage organ of the body, to a change from thermoneutrality to room temperature is not known. This was investigated here for various WAT depots, focusing on epididymal WAT (eWAT), widely used as reference depot. Male adult diet-induced obese (DIO) C57BL/6JOlaHsd mice housed at thermoneutrality (29°C), were for 5 days either switched to room temperature (22°C) or remained at thermoneutrality...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28385042/macrophage-response-to-allogeneic-adipose-tissue-derived-stromal-cells-in-hyaluronan-based-hydrogel-in-a-porcine-vocal-fold-injury-model
#18
Suzanne N King, Joo Hyun Woo, Sharon Tang, Susan L Thibeault
OBJECTIVE: Adipose tissue-derived stromal cells (ASC) embedded in hyaluronan scaffold is a beneficial prophylactic treatment for vocal fold (VF) surgical scar. Here, we investigated the macrophage inflammatory response to allogeneic ASC-constructs and identified changes in lamina propria extracellular matrix. METHOD: Pig ASC were characterized and transfected with GFP+ lentivirus. Thirty-three pigs underwent VF biopsies, and after 3 days, gel alone, gel+pASC, placebo, or pASC alone was injected into wound bed...
June 2017: Annals of Otology, Rhinology, and Laryngology
https://www.readbyqxmd.com/read/28379384/osteocyte-protein-expression-is-altered-in-low-turnover-osteoporosis-caused-by-mutations-in-wnt1-and-pls3
#19
Katherine Wesseling-Perry, Riikka E Mäkitie, Ville-Valtteri Välimäki, Tero Laine, Christine M Laine, Matti J Välimäki, Renata C Pereira, Outi Mäkitie
Context: Osteocytes express proteins that regulate bone remodeling and mineralization as well as osteoblast and adipocyte differentiation. Objective: To evaluate the relationship between osteocyte-specific protein expression and bone histology in patients with monogenic osteoporosis due to WNT1 or PLS3 mutations. Design and Setting: Cross-sectional cohort study at a University Hospital. Participants: 6 patients (4 males, age range 14-72 years) with a heterozygous WNT1 mutation and 5 patients (4 males, age 9-70 years) with a hetero-/hemizygous PLS3 mutation...
April 3, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28373675/grape-seed-proanthocyanidin-supplementation-reduces-adipocyte-size-and-increases-adipocyte-number-in-obese-rats
#20
A Pascual-Serrano, A Arola-Arnal, S Suárez-Garcia, F I Bravo, M Suárez, L Arola, C Bladé
OBJECTIVES: White adipose tissue (WAT) expands through hypertrophy (increased adipocyte size) and/or hyperplasia (increased adipocyte number). Hypertrophy has been associated with insulin resistance and dyslipidemia independently of body composition and fat distribution. In contrast, hyperplasia protects against metabolic alterations. Proanthocyanidins, which are the most abundant flavonoids in the human diet, improve metabolic disturbances associated with diet-induced obesity without reducing body weight or adiposity...
April 4, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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