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https://www.readbyqxmd.com/read/29050313/adipose-derived-mesenchymal-stem-cells-employed-exosomes-to-attenuate-aki-ckd-transition-through-tubular-epithelial-cell-dependent-sox9-activation
#1
Fengming Zhu, Octavia L S Chong Lee Shin, Guangchang Pei, Zhizhi Hu, Juan Yang, Han Zhu, Meng Wang, Jingyi Mou, Jie Sun, Yuxi Wang, Qian Yang, Zhi Zhao, Huzi Xu, Hui Gao, Weiqi Yao, Xiao Luo, Wenhui Liao, Gang Xu, Rui Zeng, Ying Yao
Acute kidney injury (AKI) predisposes patients to an increased risk into progressive chronic kidney disease (CKD), however effective treatments are still elusive. This study aimed to investigate the therapeutic efficacy of human adipose-derived MSCs (hAD-MSCs) in the prevention of AKI-CKD transition, and illuminate the role of Sox9, a vital transcription factor in the development of kidney, in this process. C57BL/6 mice were subjected to unilateral renal ischemia/reperfusion (I/R) with or without hAD-MSC treatment...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29050301/mir-377-promotes-white-adipose-tissue-inflammation-and-decreases-insulin-sensitivity-in-obesity-via-suppression-of-sirtuin-1-sirt1
#2
Jie Peng, Yinghui Wu, Zhao Deng, Yuanfei Zhou, Tongxing Song, Yang Yang, Xiaming Zhang, Tao Xu, Mao Xia, Anle Cai, Zuhong Liu, Jian Peng
Obesity is associated with a wide range of metabolic disorders including inflammation and insulin-resistance. Sirtuin-1 (SIRT1) is an important regulator of metabolic homeostasis and stress response pathways in white adipose tissue. However, involvement of microRNAs (miRNAs) in regulating SIRT1 during obesity-induced inflammation and insulin-resistance remains unclear. Here, we found that miR-377 was upregulated in adipose tissue and showed a negative correlation with SIRT1 in chronic high fat diet (HFD)-fed mice...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049924/equine-mesenchymal-stem-cells-derived-from-endometrial-or-adipose-tissue-share-significant-biological-properties-but-have-distinctive-pattern-of-surface-markers-and-migration
#3
J Cabezas, D Rojas, F Navarrete, R Ortiz, G Rivera, F Saravia, L Rodriguez-Alvarez, F O Castro
Adult stromal mesenchymal stem cells (MSCs) have been postulated as responsible for cell renewal in highly and continuously regenerative tissues such as the endometrium. MSCs have been identified in the endometrium of many species including humans, rodents, pets and some farm animals, but not in horses. The objective of this work was to isolate such cells from the endometrium of mares and to compare their main biological attributes with horse adipose-derived MSCs. Here we successfully isolated and characterized endometrial MSCs (eMSCs) from mares...
October 6, 2017: Theriogenology
https://www.readbyqxmd.com/read/29049689/a-nonlinear-viscoelastic-model-for-adipose-tissue-representing-tissue-response-at-a-wide-range-of-strain-rates-and-high-strain-levels
#4
Hosein Naseri, Håkan Johansson, Karin Brolin
Finite element human body models are nowdays commonly used to simulate pre- and in-crash occupant response in order to develop advanced safety systems. In this study a biofidelic model for adipose tissue is developed for this application. It is a nonlinear viscoelastic model based on the Reese et al. formulation. The model is formulated in a large strain framework and applied for finite element simulation of two types of experiments: rheological experiments and ramped-displacement experiments. The adipose tissue behavior in both experiments are represented well by this model...
October 16, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/29049142/13-93b3-bioactive-glass-a-new-scaffold-for-transplantation-of-stem-cell-derived-chondrocytes
#5
Kivanc Gunhan, Serkan Bariskan, Uzdan Uz, Seda Vatansever, Mujde Kivanc
Research using animal models gives human trials hope for recovery in many fields of regenerative medicine, although they are sometimes poor predictors for human experiences. Our goal was to investigate whether rat chondrocytes, differentiated from adipose-derived stem cells, could be transplanted using a new, easily shaped, bioactive glass scaffold, and to show the immunohistochemical results. Intraperitoneal and retroperitoneal adipose tissue was extracted from 6 male Wistar albino type rats. The fatty tissue samples were fragmented and incubated...
October 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29048747/association-between-gestational-diabetes-mellitus-exposure-and-childhood-adiposity-is-not-substantially-explained-by-offspring-genetic-risk-of-obesity
#6
S Raghavan, W Zhang, I V Yang, L A Lange, E M Lange, T E Fingerlin, D Dabelea
AIM: To examine the extent to which offspring obesity-associated genetic risk explains the association between gestational diabetes mellitus and childhood adiposity. METHODS: We studied 282 children aged 7-12 years who were enrolled in the Exploring Perinatal Outcomes in Children Study. A genetic risk score for BMI was calculated as the count of 91 established BMI-raising risk alleles. Multivariable linear and logistic regression models were used to estimate associations between the offspring genetic risk score and exposure to gestational diabetes and childhood adiposity (BMI and waist circumference), adjusting for clinical and demographic covariates...
October 19, 2017: Diabetic Medicine: a Journal of the British Diabetic Association
https://www.readbyqxmd.com/read/29048330/calibration-and-analysis-of-a-multimodal-micro-ct-and-structured-light-imaging-system-for-the-evaluation-of-excised-breast-tissue
#7
David Martin McClatchy Iii, Elizabeth J Rizzo, Jeff Meganck, Josh Kempner, Jared Vicory, Wendy A Wells, Keith D Paulsen, Brian W Pogue
A multimodal micro-computed tomography (CT) and multi-spectral structured light imaging (SLI) system is introduced and systematically analyzed to test its feasibility to aid in margin delineation during breast conserving surgery (BCS). Phantom analysis of the micro-CT yielded a signal-to-noise ratio (SNR) of 34, a contrast of 1.64, and a minimum detectable resolution of 240 m for a 1.2 min scan. The SLI system, spanning wavelengths 490 nm to 800 nm and spatial frequencies up to 1.37 mm-1, was evaluated with aqueous tissue simulating phantoms having variations in particle size distribution, scatter density, and blood volume fraction...
October 19, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29047209/effects-of-cryopreservation-on-adipose-tissue-derived-microvascular-fragments
#8
Matthias W Laschke, Philipp Karschnia, Claudia Scheuer, Alexander Heß, Wolfgang Metzger, Michael D Menger
Adipose tissue-derived microvascular fragments (ad-MVF) are effective vascularization units for tissue engineering. They rapidly reassemble into new microvascular networks after seeding on scaffolds and subsequent in vivo implantation. Herein, we analyzed whether the vascularization capacity of ad-MVF is affected by cryopreservation. Ad-MVF were isolated from the epididymal fat pads of C57BL/6 mice and cryopreserved for 7 days to compare their morphology, viability, cellular composition and protein expression with freshly isolated control ad-MVF...
October 19, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29046921/pioglitazone-reduces-cold-induced-brown-fat-glucose-uptake-despite-induction-of-browning-in-cultured-human-adipocytes-a-randomised-controlled-trial-in-humans
#9
Rebecca K C Loh, Melissa F Formosa, Nina Eikelis, David A Bertovic, Mitchell J Anderson, Shane A Barwood, Shane Nanayakkara, Neale D Cohen, Andre La Gerche, Anne T Reutens, Kenneth S Yap, Thomas W Barber, Gavin W Lambert, Martin H Cherk, Stephen J Duffy, Bronwyn A Kingwell, Andrew L Carey
AIMS/HYPOTHESIS: Increasing brown adipose tissue (BAT) activity is a possible therapeutic strategy to increase energy expenditure and glucose and lipid clearance to ameliorate obesity and associated comorbidities. The thiazolidinedione (TZD) class of glucose-lowering drugs increase BAT browning in preclinical experimental models but whether these actions extend to humans in vivo is unknown. The aim of this study was to determine the effect of pioglitazone treatment on adipocyte browning and adaptive thermogenesis in humans...
October 18, 2017: Diabetologia
https://www.readbyqxmd.com/read/29046728/high-prevalence-of-berardinelli-seip-congenital-lipodystrophy-in-rio-grande-do-norte-state-northeast-brazil
#10
Lázaro Batista de Azevedo Medeiros, Verônica Kristina Cândido Dantas, Aquiles Sales Craveiro Sarmento, Lucymara Fassarella Agnez-Lima, Adriana Lúcia Meireles, Thaiza Teixeira Xavier Nobre, Josivan Gomes de Lima, Julliane Tamara Araújo de Melo Campos
BACKGROUND: Berardinelli-Seip Congenital Lipodystrophy (BSCL) is a rare disease characterized by the almost complete absence of adipose tissue. Although a large number of BSCL cases was previously identified in Rio Grande do Norte (RN), a state in Northeast Brazil, its prevalence in RN regions and municipalities remains unknown. The purpose of this study was to better characterize the prevalence of BSCL in RN. METHODS: A descriptive study was conducted using secondary data obtained from the Association of Parents and People with BSCL of RN to determine its prevalence...
2017: Diabetology & Metabolic Syndrome
https://www.readbyqxmd.com/read/29046479/lipoprotein-lipase-reaches-the-capillary-lumen-in-chickens-despite-an-apparent-absence-of-gpihbp1
#11
Cuiwen He, Xuchen Hu, Rachel S Jung, Mikael Larsson, Yiping Tu, Sandra Duarte-Vogel, Paul Kim, Norma P Sandoval, Tara R Price, Christopher M Allan, Brian Raney, Haibo Jiang, André Bensadoun, Rosemary L Walzem, Richard I Kuo, Anne P Beigneux, Loren G Fong, Stephen G Young
In mammals, GPIHBP1 is absolutely essential for transporting lipoprotein lipase (LPL) to the lumen of capillaries, where it hydrolyzes the triglycerides in triglyceride-rich lipoproteins. In all lower vertebrate species (e.g., birds, amphibians, reptiles, fish), a gene for LPL can be found easily, but a gene for GPIHBP1 has never been found. The obvious question is whether the LPL in lower vertebrates is able to reach the capillary lumen. Using purified antibodies against chicken LPL, we showed that LPL is present on capillary endothelial cells of chicken heart and adipose tissue, colocalizing with von Willebrand factor...
October 19, 2017: JCI Insight
https://www.readbyqxmd.com/read/29046332/adipose-tissue-lpl-methylation-is-associated-with-triglyceride-concentrations-in-the-metabolic-syndrome
#12
Daniel Castellano-Castillo, Isabel Moreno-Indias, José Carlos Fernández-García, Juan Alcaide-Torres, Inmaculada Moreno-Santos, Luis Ocaña, Enrique Gluckman, Francisco Tinahones, María Isabel Queipo-Ortuño, Fernando Cardona
BACKGROUND: DNA methylation is one of the epigenetic mechanisms that regulate gene expression. DNA methylation may be modified by environmental and nutritional factors. Thus, epigenetics could potentially provide a mechanism to explain the etiology of metabolic disorders, such as metabolic syndrome (MetS). The aim of this study was to analyze the level of DNA methylation of several lipoprotein lipase (LPL)-promoter-CpG dinucleotides in a CpG island region and relate this to the gene and protein expression levels in human visceral adipose tissue (VAT) from individuals with and without MetS...
October 18, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29046328/genetic-support-for-a-causal-role-of-insulin-resistance-on-circulating-branched-chain-amino-acids-and-inflammation
#13
Qin Wang, Michael V Holmes, George Davey Smith, Mika Ala-Korpela
OBJECTIVE: Insulin resistance has deleterious effects on cardiometabolic disease. We used Mendelian randomization analyses to clarify the causal relationships of insulin resistance (IR) on circulating blood-based metabolites to shed light on potential mediators of the IR to cardiometabolic disease relationship. RESEARCH DESIGN AND METHODS: We used 53 single nucleotide polymorphisms associated with IR from a recent genome-wide association study (GWAS) to explore their effects on circulating lipids and metabolites...
October 18, 2017: Diabetes Care
https://www.readbyqxmd.com/read/29046261/cinnamaldehyde-induces-fat-cell-autonomous-thermogenesis-and-metabolic-reprogramming
#14
Juan Jiang, Margo P Emont, Heejin Jun, Xiaona Qiao, Jiling Liao, Dong-Il Kim, Jun Wu
OBJECTIVE: Cinnamaldehyde (CA) is a food compound that has previously been observed to be protective against obesity and hyperglycemia in mouse models. In this study, we aimed to elucidate the mechanisms behind this protective effect by assessing the cell-autonomous response of primary adipocytes to CA treatment. METHODS: Primary murine adipocytes were treated with CA and thermogenic and metabolic responses were assessed after both acute and chronic treatments. Human adipose stem cells were differentiated and treated with CA to assess whether the CA-mediated signaling is conserved in humans...
September 1, 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/29046229/fetal-overnutrition-and-adolescent-hepatic-fat-fraction-the-exploring-perinatal-outcomes-in-children-study
#15
Anna Bellatorre, Ann Scherzinger, Elizabeth Stamm, Mercedes Martinez, Brandy Ringham, Dana Dabelea
OBJECTIVE: To determine if fetal overnutrition resulting from maternal obesity or gestational diabetes mellitus (GDM) is associated with increased liver fat during adolescence, adjusting for past and current metabolic risk factors. STUDY DESIGN: Data come from a historical prospective cohort study (Exploring Perinatal Outcomes in Children) of 254 mother-child pairs in Colorado who participated in 2 research visits at T1 (mean age 10.4, SD = 1.5 years) and at T2 (mean age 16...
October 15, 2017: Journal of Pediatrics
https://www.readbyqxmd.com/read/29045765/oral-anti-diabetic-agents-for-women-with-established-diabetes-impaired-glucose-tolerance-or-previous-gestational-diabetes-planning-pregnancy-or-pregnant-women-with-pre-existing-diabetes
#16
REVIEW
Joanna Tieu, Suzette Coat, William Hague, Philippa Middleton, Emily Shepherd
BACKGROUND: While most guidance recommends the use of insulin in women whose pregnancies are affected by pre-existing diabetes, oral anti-diabetic agents may be more acceptable to women. The effects of these oral anti-diabetic agents on maternal and infant health outcomes need to be established in pregnant women with pre-existing diabetes or impaired glucose tolerance, as well as in women with previous gestational diabetes mellitus preconceptionally or during a subsequent pregnancy. OBJECTIVES: To investigate the effects of oral anti-diabetic agents in women with established diabetes, impaired glucose tolerance or previous gestational diabetes who are planning a pregnancy, or pregnant women with pre-existing diabetes, on maternal and infant health...
October 18, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29045760/biological-imaging-with-medium-sensitive-bichromatic-flexible-fluorescent-flexfluor-dyes
#17
Yang Cao, Xiaozhu Wang, Xiaolei Shi, Suzanne M Clee, Patrick L McGeer, Michael O Wolf, Chris Orvig
A new family of environment-sensitive shape-shifting molecules have been developed as flexible fluorescent (FlexFluor) dyes for biological imaging applications. These compounds feature a flexible bithiophene-based fluorophore that gives rise to different emission colors in lipophilic or hydrophilic environments, as well as side-groups that can be easily synthetically modified. As the first fluorescent dyes in which emission color can be used to indicate lipid/water environments, the behavior of FlexFluor dyes in different solvents has been studied, and used to simultaneously highlight lipid and water contents in adipose and brain tissues using optical fluorescence microscopy...
October 18, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/29045709/joint-effect-of-physical-activity-and-sedentary-behaviour-on-cardiovascular-risk-factors-in-chilean-adults
#18
Carlos Cristi-Montero, Lewis Steell, Fanny Petermann, Alex Garrido-Méndez, Ximena Díaz-Martínez, Carlos Salas-Bravo, Rodrigo Ramirez-Campillo, Cristian Alvarez, Fernando Rodriguez, Nicolas Aguilar-Farias, Maria A Martinez, Ana M Leiva, Felipe Poblete-Valderrama, Naomi D Willis, Carlos A Celis-Morales
Background: To investigate the associations between combined categories of moderate-to-vigorous physical activity (MVPA) and sedentary behaviour (SB) with markers of adiposity and cardiovascular risk in adults. Methods: Overall, 5040 participants (mean age 46.4 years and 59.3% women) from the cross-sectional Chilean National Health Survey 2009-2010 were included in this study. MVPA and SB were measured using the Global Physical Activity questionnaire. Four categories were computed using MVPA- and SB-specific cut-offs ('High-SB & Active', 'Low-SB & Active', 'High-SB & Inactive' and 'Low-SB & Inactive')...
October 17, 2017: Journal of Public Health
https://www.readbyqxmd.com/read/29045546/characterization-of-adipose-tissue-product-quality-using-measurements-of-oxygen-consumption-rate
#19
Thomas M Suszynski, David A Sieber, Kathryn Mueller, Allen L Van Beek, Bruce L Cunningham, Jeffrey M Kenkel
Background: Fat grafting is a common procedure in plastic surgery but associated with unpredictable graft retention. Adipose tissue (AT) "product" quality is affected by the methods used for harvest, processing and transfer, which vary widely amongst surgeons. Currently, there is no method available to accurately assess the quality of AT. Objectives: In this study, we present a novel method for the assessment of AT product quality through direct measurements of oxygen consumption rate (OCR)...
October 13, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/29045417/effects-of-food-store-quality-on-hibernation-performance-in-common-hamsters
#20
Carina Siutz, Matthias Nemeth, Karl-Heinz Wagner, Ruth Quint, Thomas Ruf, Eva Millesi
Hibernating animals can adjust torpor expression according to available energy reserves. Besides the quantity, the quality of energy reserves could play an important role for overwintering strategies. Common hamsters are food-storing hibernators and show high individual variation in hibernation performance, which might be related to the quality of food hoards in the hibernacula. In this study, we tested the effects of food stores high in fat content, particularly polyunsaturated fatty acids (PUFAs), on hibernation patterns under laboratory conditions...
2017: PloS One
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