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https://www.readbyqxmd.com/read/29458221/thyroid-stimulating-hormone-stimulated-human-adipocytes-express-thymic-stromal-lymphopoietin
#1
Loretta Ma, AnneMarie Gagnon, Anne Landry, Timothea Le, Fengxia Xiao, Cathy Sun, Heather A Lochnan, Dylan Burger, Alexander Sorisky
When recombinant human (rh) thyroid-stimulating hormone (TSH) is administered to thyroid cancer survivors, an acute extra-thyroidal effect raises pro-inflammatory cytokines and activates platelets. Thymic stromal lymphopoietin (TSLP) is a cytokine recently implicated in platelet activation. Our aim was to measure platelet microparticle levels after rhTSH stimulation in vivo, and to investigate TSLP expression in TSH-stimulated human adipocytes in culture. Blood samples for total and platelet microparticle analysis were obtained from thyroid cancer survivors before (day 1) and after rhTSH administration (day 5)...
February 19, 2018: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/29458140/hyaluronan-in-adipogenesis-adipose-tissue-physiology-and-systemic-metabolism
#2
REVIEW
Yi Zhu, Ilja L Kruglikov, Yucel Akgul, Philipp E Scherer
Hyaluronic acid (HA, also known as hyaluronan), is a non-sulfated linear glycosaminoglycan polymer consisting of repeating disaccharide units of d-glucuronic acid and N-acetyl-d-glucosamine abundantly present in the extracellular matrix. The sizes of hyaluronic acid polymers range from 5000 to 20,000,000 Da in vivo, and the functions of HA are largely dictated by its size. Due to its high biocompatibility, HA has been commonly used as soft tissue filler as well as a major component of biomaterial scaffolds in tissue engineering...
February 16, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29458121/the-paradox-of-marrow-adipose-tissue-in-anorexia-nervosa
#3
Pouneh K Fazeli, Anne Klibanski
Anorexia nervosa (AN) is a psychiatric disorder characterized by inappropriate nutrient intake resulting in low body weight. Multiple hormonal adaptations facilitate decreased energy expenditure in this state of caloric deprivation including non-thyroidal illness syndrome, growth hormone resistance, and hypogonadotropic hypogonadism. Although these hormonal adaptations confer a survival advantage during periods of negative energy balance, they contribute to the long-term medical complications associated with AN, the most common of which is significant bone loss and an increased risk of fracture...
February 16, 2018: Bone
https://www.readbyqxmd.com/read/29457996/the-tyg-index-cutoff-point-and-its-association-with-body-adiposity-and-lifestyle-in-children
#4
Sarah A Vieira Ribeiro, Poliana C A Fonseca, Cristiana S Andreoli, Andréia Q Ribeiro, Helen H M Hermsdorff, Patrícia F Pereira, Silvia E Priore, Sylvia C C Franceschini
OBJECTIVE: To investigate the factors associated with insulin resistance in children aged 4-7 years, and to identify the cutoff point of the triglyceride-glucose index for the prediction of IR in this population. METHODS: A cross-sectional study was conducted with 403 children from a retrospective cohort. Insulin resistance was also evaluated in a sub-sample using the HOMA index. Four indicators of body adiposity were assessed: body mass index, waist-to-height ratio, and the percentages of total and central body fat...
February 16, 2018: Jornal de Pediatria
https://www.readbyqxmd.com/read/29457957/synergistic-effect-of-entomopathogenic-fungus-fusarium-oxysporum-extract-in-combination-with-temephos-against-three-major-mosquito-vectors
#5
Perumal Vivekanandhan, Sengodan Karthi, Muthugounder S Shivakumar, Giovanni Benelli
Mosquito control using chemical insecticides is facing a major challenge due to development of insecticide resistance. Improving the efficiency of existing insecticides using synergistic secondary metabolites of biological origin is increasingly being researched. Herein, we evaluated the toxicity of Fusarium oxysporum extract alone and in binary combinations with temephos, on larvae and pupae of Anopheles stephensi, Aedes aegypti and Culex quinquefaciatus. F. oxysporum extract was characterized using TLC, FT-IR and GC-MS...
February 19, 2018: Pathogens and Global Health
https://www.readbyqxmd.com/read/29457907/deletion-of-adipose-triglyceride-lipase-links-triacylglycerol-accumulation-to-a-more-aggressive-phenotype-in-a549-lung-carcinoma-cells
#6
Tamara Tomin, Katarina Fritz, Juergen Gindlhuber, Linda Waldherr, Bettina Pucher, Gerhard G Thallinger, Daniel K Nomura, Matthias Schittmayer, Ruth Birner-Gruenberger
Adipose triglyceride lipase (ATGL) catalyzes the rate limiting step in triacylglycerol breakdown in adipocytes but is expressed in most tissues. The enzyme was shown to be lost in many human tumors, and its loss may play a role in early stages of cancer development. Here we report that loss of ATGL supports a more aggressive cancer phenotype in a model system where ATGL was deleted in A549 lung cancer cells by CRISPR/Cas9. We observed that loss of ATGL led to triacylglycerol accumulation in lipid droplets, and higher levels of cellular phospholipid and bioactive lipid species (lyso- and ether-phospholipids)...
February 19, 2018: Journal of Proteome Research
https://www.readbyqxmd.com/read/29457847/preconditioning-with-low-level-laser-irradiation-enhances-the-therapeutic-potential-of-human-adipose-derived-stem-cells-in-a-mouse-model-of-photoaged-skin
#7
Xuan Liao, Sheng-Hong Li, Guang-Hui Xie, Shan Xie, Li-Ling Xiao, Jian-Xing Song, Hong-Wei Liu
The present study was conducted to explore the therapeutic potential of human adipose-derived stem cells (ADSCs) irradiated with a low level laser (LLL). Cultured ADSCs were treated with 650-nm GaAlAs laser irradiation at 2, 4, and 8 J/cm2 . Cell proliferation was quantified by MTT assays, cytokine secretion was determined by enzyme-linked immunosorbent assays, and adipogenic differentiation was examined by oil red O staining. Additionally, the expression profiles of putative ADSC surface markers were analyzed by quantitative real-time PCR...
February 19, 2018: Photochemistry and Photobiology
https://www.readbyqxmd.com/read/29457376/delivery-of-allogeneic-adipose-stem-cells-in-polyethylene-glycol-fibrin-hydrogels-as-an-adjunct-to-meshed-autografts-after-sharp-debridement-of-deep-partial-thickness-burns
#8
David M Burmeister, Randolph Stone, Nicole Wrice, Alfred Laborde, Sandra C Becerra, Shanmugasundaram Natesan, Robert J Christy
Harvesting of autografts results in donor site morbidities and is limited in scenarios such as large total body surface area burns. In these instances, coverage is increased by meshing grafts at the expense of delayed biologic closure. Moreover, graft meshing increases the likelihood of contraction and hypertrophic scarring, limits range of motion, and worsens cosmesis. Many tissue engineering technologies have touted the promise of adipose-derived stem cells (ASCs) for burn wounds. The primary objective of the current study was to determine feasibility and efficacy of in situ ASC delivery via PEGylated fibrin (FPEG) hydrogels as adjuncts to meshed split thickness skin grafts in a porcine model...
February 18, 2018: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/29457360/neglected-areas-on-thorax-computed-tomography-evaluation-in-patients-with-chronic-obstructive-pulmonary-disease-paravertebral-muscles-and-para-aortic-adipose-tissue
#9
Mustafa Resorlu, Ozan Karatag, Canan A Toprak, Muhsin O Ozturk
INTRODUCTION: This study, investigated the para-aortic adipose tissue cross-sectional area, a novel predictor of cardiovascular diseases and degenerative changes in the paravertebral muscles, in patients with chronic obstructive pulmonary disease (COPD). METHOD: One hundred cases diagnosed as COPD and 50 healthy individuals with similar demographic characteristics were evaluated. Para-aortic adipose tissue cross-sectional area (mm2 ), subcutaneous adipose tissue thickness (mm), paravertebral muscle area (mm2 ) and fat deposition in muscle tissue were assessed radiologically...
February 18, 2018: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29456931/abdominal-obesity-adversely-affects-bone-mass-in-children
#10
Sowmya Krishnan, Michael P Anderson, David A Fields, Madhusmita Misra
AIM: To determine the effect of childhood obesity and insulin resistance on bone health. METHODS: We conducted a cross sectional study in pubertal adolescents and young adults 13-20 years old who were either overweight/obese or normal weight. Participants were Tanner 3 or above for pubertal stage, and had fasting blood work done to measure glucose, insulin, C-reactive protein and lipid levels. Homeostatic model of insulin resistance (HOMA-IR) was calculated using the formula (Fasting Blood Glucose *Insulin/405)...
February 8, 2018: World Journal of Clinical Pediatrics
https://www.readbyqxmd.com/read/29456819/comparison-of-the-efficacy-of-piascledine-and-transforming-growth-factor-%C3%AE-1-on-chondrogenic-differentiation-of-human-adipose-derived-stem-cells-in-fibrin-and-fibrin-alginate-scaffolds
#11
Batool Hashemibeni, Ali Valiani, Mojtaba Esmaeli, Mohammad Kazemi, Maryam Aliakbari, Farhad Golshan Iranpour
Objectives: The aim of this study was to compare the chondrogenic induction potential of Piascledine and TGF-β1 on adipose-derived stem cells (ADSCs) in fibrin and fibrin-alginate scaffolds. Materials and Methods: Human subcutaneous adipose tissues were harvested from three patients who were scheduled to undergo liposuction. Isolated ADSCs were proliferated in a culture medium. Then, the cells were seeded in fibrin or fibrin-alginate scaffolds and cultured for 14 days in a chondrogenic medium containing Piascledine, TGF-β1, or both...
February 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29456813/evaluation-of-tnf-%C3%AE-and-il-6-mrnas-expressions-in-visceral-and-subcutaneous-adipose-tissues-of-polycystic-ovarian-rats-and-effects-of-resveratrol
#12
Mahnaz Ghowsi, Homayoun Khazali, Sajjad Sisakhtnezhad
Objectives: Some studies suggest that chronic low-grade inflammation is involved in insulin resistance in polycystic ovary syndrome (PCOS). This study assessed possible involvement of alteration in expression of two pro-inflammatory factors, tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in adipose tissues of PCOS rats in the impairment of insulin actions. Also, effects of resveratrol as an anti-inflammatory agent were investigated. Materials and Methods: Fifteen female Wistar rats (21 days old) were divided into three groups (n=5): I) Control, II) PCO-model-saline: served as PCOS rats and to induce PCOS, received subcutaneously testosterone enanthate 1 mg/100 g body weight subcutaneously for 35 days, III) PCO-model-resveratrol, after receiving testosterone, received resveratrol 10 mg/kg intraperitoneally for 28 days...
February 2018: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/29456634/limethason-reduces-airway-inflammation-in-a-murine-model-of-ovalbumin-induced-chronic-asthma-without-causing-side-effects
#13
Siyu Li, Zhiping Miao, Ye Tian, Haoyu Wang, Shuai Wang, Tianyuan He, Yue Yang, Peng Wang, Mengyao Ma, Tuanmin Yang, Tao Chen, Zhiyong Liu, Junhong Gao, Chu Chen, Airong Qian
Airway inflammation is the major pathological feature of asthma. Thus, the current therapeutic strategy for asthma is to control inflammation. Limethason, an anti-inflammation drug, is widely used in rheumatoid arthritis treatment. The aim of the present study was to detect the anti-inflammatory effect and side effects of limethason on airways that were sensitized with ovalbumin in a murine model of chronic asthma. In the present study, BALB/c mice were sensitized with ovalbumin. Airway hyperresponsiveness was estimated, and hematoxylin and eosin staining, Periodic acid-Schiff staining and bronchoalveolar lavage were used to detect the effect on chronic asthma...
March 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29455954/the-peroxisome-proliferator-activated-receptor-%C3%AE-is-dispensable-for-cold-induced-adipose-tissue-browning-in-mice
#14
Merel Defour, Wieneke Dijk, Philip Ruppert, Emmani B M Nascimento, Patrick Schrauwen, Sander Kersten
OBJECTIVE: Chronic cold exposure causes white adipose tissue (WAT) to adopt features of brown adipose tissue (BAT), a process known as browning. Previous studies have hinted at a possible role for the transcription factor Peroxisome Proliferator-Activated Receptor alpha (PPARα) in cold-induced browning. Here we aimed to investigate the importance of PPARα in driving transcriptional changes during cold-induced browning in mice. METHODS: Male wildtype and PPARα-/- mice were housed at thermoneutrality (28 °C) or cold (5 °C) for 10 days...
February 9, 2018: Molecular Metabolism
https://www.readbyqxmd.com/read/29455575/exercise-counteracts-the-homeostatic-decrease-in-thermogenesis-caused-by-caloric-restriction-in-sheep
#15
John-Paul Fuller-Jackson, Iain J Clarke, Alexandra Rao, Belinda A Henry
Caloric restriction causes a homeostatic reduction in thermogenesis. We aimed to determine whether exercise could counteract this. We studied four groups of normal-weight ewes ( n = 5), including control sedentary fed ad libitum, exercise fed ad libitum (30 min/d, 5 d/wk), diet-restricted (70% of ad libitum food intake), and combined diet and exercise. Temperature probes implanted in sternal and retroperitoneal adipose tissue and skeletal muscle measured thermogenesis. After the 4-wk intervention, hypothalami were collected for in situ hybridization, and fat and muscle biopsies were collected for real-time PCR and Western blotting...
February 13, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29455364/hyperirisinemia-is-independently-associated-with-subclinical-hypothyroidism-correlations-with-cardiometabolic-biomarkers-and-risk-factors
#16
Theodora Stratigou, Maria Dalamaga, Georgios Antonakos, Ioanna Marinou, Evaggelos Vogiatzakis, Gerasimos Socrates Christodoulatos, Irene Karampela, Athanasios G Papavassiliou
PURPOSE: Irisin, a newly discovered adipo-myokine, is implicated in the modulation of the adipose phenotype, increasing energy expenditure and ameliorating systemic metabolism. Our aim was to investigate circulating irisin in subclinical hypothyroidism (SH) and study its associations with cardiometabolic risk factors. METHODS: In a large case-control study, serum irisin, insulin resistance and lipid parameters, classic adipokines, inflammatory and hepatic biomarkers, and cardiovascular risk factors were determined in 120 consecutive patients with SH and 120 healthy controls matched on age, gender, and date of blood draw...
February 17, 2018: Endocrine
https://www.readbyqxmd.com/read/29455275/the-effect-of-different-levels-of-dietary-restriction-on-glucose-homeostasis-and-metabolic-memory
#17
Stephanie Matyi, Jordan Jackson, Karla Garrett, Sathyaseelan S Deepa, Archana Unnikrishnan
Over the past 50 years, dietary restriction (DR) has been shown to extend the life span of a wide variety of organisms. A hallmark feature of DR is improved glucose homeostasis resulting in increased glucose tolerance and insulin sensitivity of animals ranging from rodents to humans. In this study, we demonstrate the early effects of varying levels of DR on glucose tolerance. Within 10 days of 40% DR, glucose tolerance was significantly improved and by 120 days; 10 and 20% DR also showed enhanced glucose tolerance...
February 17, 2018: GeroScience
https://www.readbyqxmd.com/read/29455245/chronic-hyperinsulinemia-induced-mir-27b-is-linked-to-adipocyte-insulin-resistance-by-targeting-insulin-receptor
#18
Ankita Srivastava, Kripa Shankar, Muheeb Beg, Sujith Rajan, Abhishek Gupta, Salil Varshney, Durgesh Kumar, Sanchita Gupta, Raj Kumar Mishra, Anil Nilkanth Gaikwad
Defect in insulin signaling leads to the development of insulin resistance followed by type 2 diabetes. Exploiting our previously developed physiological chronic hyperinsulinemia (CI)-mediated insulin resistance (IR) model, we wanted to understand how miRNAs contribute to the development of IR. Amongst the identified and validate miRNAs, the expression of miR-27b was found to be highly upregulated during CI-induced IR in 3T3-L1 adipocytes. We also validated the expression of miR-27b in CI-induced IR in human mesenchymal stem cell (hMSC)-derived adipocytes and in vivo high fat diet (HFD)-induced IR mice model...
February 17, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29455158/american-heart-association-s-life-s-simple-7-at-middle-age-and-prognosis-after-myocardial-infarction-in-later-life
#19
Yejin Mok, Yingying Sang, Shoshana H Ballew, Casey M Rebholz, Wayne D Rosamond, Gerardo Heiss, Aaron R Folsom, Josef Coresh, Kunihiro Matsushita
BACKGROUND: The American Heart Association recommends focusing on 7 health factors (Life's Simple 7) for primordial prevention of cardiovascular health. However, whether greater adherence to Life's Simple 7 in midlife improves prognosis after myocardial infarction (MI) in later life is unknown. METHODS AND RESULTS: In 1277 participants who developed MI during the ARIC (Atherosclerosis Risk in Communities) Study follow-up, a 14-point score of Life's Simple 7 was constructed according to the status (2 points for ideal, 1 point for intermediate, and 0 points for poor) of each of 7 factors (smoking, adiposity, physical activity, diet, total cholesterol, blood pressure, and fasting glucose) at baseline (1987-1989)...
February 17, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29455039/comparison-of-different-constitutive-models-to-characterize-the-viscoelastic-properties-of-human-abdominal-adipose-tissue-a-pilot-study
#20
Jose L Calvo-Gallego, Jaime Domínguez, Tomás Gómez Cía, Gorka Gómez Ciriza, Javier Martínez-Reina
Knowing the mechanical properties of human adipose tissue is key to simulate surgeries such as liposuction, mammoplasty and many plastic surgeries in which the subcutaneous fat is present. One of the most important surgeries, for its incidence, is the breast reconstruction surgery that follows a mastectomy. In this case, achieving a deformed shape similar to the healthy breast is crucial. The reconstruction is most commonly made using autologous tissue, taken from the patient's abdomen. The amount of autologous tissue and its mechanical properties have a strong influence on the shape of the reconstructed breast...
February 10, 2018: Journal of the Mechanical Behavior of Biomedical Materials
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