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https://www.readbyqxmd.com/read/28528427/repeated-systemic-administration-of-adipose-tissue-derived-mesenchymal-stem-cells-prevents-tracheal-obliteration-in-a-murine-model-of-bronchiolitis-obliterans
#1
William Lorenzi, Fabiany Da Costa Gonçalves, Natália Schneider, Éverton Franco Silva, Fernanda Visioli, Ana Helena Paz, Mauricio Guidi Saueressig
OBJECTIVE: To investigate the effect of adipose tissue-derived mesenchymal stem cell (ASC) administered either systemically or locally in a murine model of bronchiolitis obliterans. RESULTS: When compared to controls, systemic treatment with 10(6) ASCs on D0 and a second dose on D7 significantly prevented tracheal obliteration 28 days after heterotopic tracheal transplantation (median of 94 vs. 16%; P < 0.01). A single dose tended towards less stenosis than controls, but did not reach statistical significance (28 vs...
May 20, 2017: Biotechnology Letters
https://www.readbyqxmd.com/read/28528404/a-direct-comparison-of-the-effects-of-the-antiretroviral-drugs-stavudine-tenofovir-and-the-combination-lopinavir-ritonavir-on-bone-metabolism-in-a-rat-model
#2
M M Conradie, M van de Vyver, E Andrag, M Conradie, W F Ferris
Antiretroviral (ARV) treatment may induce metabolic complications in HIV patients on long-term therapy that can affect bone health. In this study, the effects of the ARVs Stavudine (d4T), Tenofovir (TDF) and Lopinavir/ritonavir (LPV/r) on bone metabolism and lipodystrophy were directly compared in rats to negate the consequences of HIV-associated confounding factors. Healthy 12-14-week-old male Wistar rats (n = 40) were divided into four treatment groups and received an oral animal equivalent dose of either Stavudine (6...
May 20, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28528355/increased-retinol-free-rbp4-contributes-to-insulin-resistance-in-gestational-diabetes-mellitus
#3
Yanmin Chen, Ping Lv, Mengkai Du, Zhaoxia Liang, Menglin Zhou, Danqing Chen
PURPOSE: Retinol-binding protein 4 (RBP4) is a circulating retinol transporter that is strongly associated with insulin resistance. The aim of this study was to evaluate the RBP4 and retinol level in rat model of gestational diabetes mellitus and the relationship between retinol-free RBP4 (apo-RBP4), retinol-bound RBP4 (holo-RBP4) and insulin resistance. METHODS: Pregnant rats were administered streptozotocin to induce diabetes. The RBP4 and retinol levels were evaluated in GDM and normal pregnant rats...
May 20, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28528274/angiopoietin-like-8-angptl8-controls-adipocyte-lipolysis-and-phospholipid-composition
#4
Raghavendra Mysore, Gerhard Liebisch, You Zhou, Vesa M Olkkonen, P A Nidhina Haridas
Angiopoietin-like 8 (Angptl8) inhibits lipolysis in the circulation together with Angplt3 and controls post-prandial fat storage in white adipose tissue (WAT). It is strongly induced by insulin in vivo in WAT and in vitro in adipocytes. In this study we addressed the function of Angptl8 in adipocytes by its stable lentivirus-mediated knock-down in 3T3-L1 cells, followed by analyses of triglyceride (TG) storage, lipid droplet (LD) morphology, the cellular lipidome, lipolysis, and gene expression. Depletion of Angptl8 did not drastically affect the adipocytic differentiation of 3T3-L1 cells but resulted in a moderate (18-19%) reduction of stored TGs...
May 17, 2017: Chemistry and Physics of Lipids
https://www.readbyqxmd.com/read/28528082/discovery-of-bi-135585-an-in-vivo-efficacious-oxazinanone-based-11%C3%AE-hydroxysteroid-dehydrogenase-type-1-inhibitor
#5
Linghang Zhuang, Colin M Tice, Zhenrong Xu, Wei Zhao, Salvacion Cacatian, Yuan-Jie Ye, Suresh B Singh, Peter Lindblom, Brian M McKeever, Paula M Krosky, Yi Zhao, Deepak Lala, Barbara A Kruk, Shi Meng, Lamont Howard, Judith A Johnson, Yuri Bukhtiyarov, Reshma Panemangalore, Joan Guo, Rong Guo, Frank Himmelsbach, Bradford Hamilton, Annette Schuler-Metz, Heike Schauerte, Richard Gregg, Gerard M McGeehan, Katerina Leftheris, David A Claremon
A potent, in vivo efficacious 11β hydroxysteroid dehydrogenase type 1 (11β HSD1) inhibitor (11j) has been identified. Compound 11j inhibited 11β HSD1 activity in human adipocytes with an IC50 of 4.3nM and in primary human adipose tissue with an IC80 of 53nM. Oral administration of 11j to cynomolgus monkey inhibited 11β HSD1 activity in adipose tissue. Compound 11j exhibited >1000× selectivity over other hydroxysteroid dehydrogenases, displays desirable pharmacodynamic properties and entered human clinical trials in 2011...
April 29, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28528004/potential-contributions-of-skeletal-muscle-contractile-dysfunction-to-altered-biomechanics-in-obesity
#6
REVIEW
Lance M Bollinger
Obesity alters whole body kinematics and joint kinetics during activities of daily living which are thought to contribute to increased risk of musculoskeletal injury, development of lower extremity joint osteoarthritis (OA), and physical disability. To date, it has widely been accepted that excess adipose tissue mass is the major driver of biomechanical alterations in obesity. However, it is well established that obesity is a systemic disease affecting numerous, if not all, organ systems of the body. Indeed, obesity elicits numerous adaptations within skeletal muscle, including alterations in muscle structure (ex...
May 13, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28527695/cytoprotection-proliferation-and-epidermal-differentiation-of-adipose-tissue-derived-stem-cells-on-emu-oil-based-electrospun-nanofibrous-mat
#7
Younes Pilehvar-Soltanahmadi, Mohammad Nouri, Mikaël M Martino, Amir Fattahi, Effat Alizadeh, Masoud Darabi, Mohammad Rahmati-Yamchi, Nosratollah Zarghami
Electrospun nanofibrous scaffolds containing natural substances with wound healing properties such as Emu oil (EO) may have a great potential for increasing the efficiency of stem cell-based skin bioengineering. For this purpose, EO blended PCL/PEG electrospun nanofibrous mats were successfully fabricated and characterized using FE-SEM, FTIR and Universal Testing Machine. The efficiency of the scaffolds in supporting the adherence, cytoprotection, proliferation and differentiation of adipose tissue-derived stem cells (ADSCs) to keratinocyte was evaluated...
May 17, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28526997/nafld-as-a-sexual-dimorphic-disease-role-of-gender-and-reproductive-status-in-the-development-and-progression-of-nonalcoholic-fatty-liver-disease-and-inherent-cardiovascular-risk
#8
REVIEW
Stefano Ballestri, Fabio Nascimbeni, Enrica Baldelli, Alessandra Marrazzo, Dante Romagnoli, Amedeo Lonardo
Nonalcoholic fatty liver disease (NAFLD) spans steatosis through nonalcoholic steatohepatis, cirrhosis, and hepatocellular carcinoma (HCC) associated with striking systemic features and excess cardiovascular and liver-related mortality. The pathogenesis of NAFLD is complex and multifactorial. Endocrine derangements are closely linked with dysmetabolic traits. For example, in animal and human studies, female sex is protected from dysmetabolism thanks to young individuals' ability to partition fatty acids towards ketone body production rather than very low density lipoprotein (VLDL)-triacylglycerol, and to sex-specific browning of white adipose tissue...
May 19, 2017: Advances in Therapy
https://www.readbyqxmd.com/read/28526415/lnk-deficiency-aggregates-palmitate-induced-preadipocyte-apoptosis
#9
Jie-Yi Du, Chen-Chen Jin, Guo-Hao Wang, Xiong-Qing Huang, Jian-Ding Cheng, Xue-Jun Wen, Xiao-Miao Zhao, Guan-Lei Wang
LNK (SH2B3) is an intracellular adaptor protein that negatively regulates cellular proliferation or self-renewal of hematopoietic stem cells and some other progenitor cells. LNK is also recognized as a key regulator of insulin resistance and inflammatory responses in several tissues and organs. It is unknown the function of LNK in adipose tissue. We previously demonstrated that type 2 diabetes mellitus (T2DM) mouse model had elevated serum free fatty acids (FFAs) levels and increased preadipocyte apoptosis in visceral fat tissue, showing the occurrence of lipotoxicity...
May 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28526391/withdrawal-from-high-carbohydrate-high-saturated-fat-diet-changes-saturated-fat-distribution-and-improves-hepatic-low-density-lipoprotein-receptor-expression-to-ameliorate-metabolic-syndrome-in-rats
#10
Ankita Hazarika, Himadri Kalita, Mohan Chandra Kalita, Rajlakshmi Devi
OBJECTIVE: The "lipid hypothesis" determined that saturated fatty acid (SFA) raises low-density lipoprotein cholesterol, thereby increasing the risk for metabolic syndrome (MetS). The aim of this study was to investigate the effect of subchronic withdrawal from a high-carbohydrate, high-saturated fat (HCHF) diet during MetS with reference to changes in deleterious SFA (C12:0, lauric acid; C14:0, myristic acid; C16:0, palmitic acid; C18:0, stearic acid) distribution in liver, white adipose tissue (WAT), and feces...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526089/adipose-derived-mesenchymal-stem-cells-from-liposuction-and-resected-fat-are-feasible-sources-for-regenerative-medicine
#11
Sandra Schneider, Marina Unger, Martijn van Griensven, Elizabeth R Balmayor
BACKGROUND: The use of mesenchymal stem cells (MSCs) in research and in regenerative medicine has progressed. Bone marrow as a source has drawbacks because of subsequent morbidities. An easily accessible and valuable source is adipose tissue. This type of tissue contains a high number of MSCs, and obtaining higher quantities of tissue is more feasible. Fat tissue can be harvested using different methods such as liposuction and resection. First, a detailed isolation protocol with complete characterization is described...
May 19, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/28525384/secretome-analysis-of-breast-cancer-associated-adipose-tissue-to-identify-paracrine-regulators-of-breast-cancer-growth
#12
Lapeire Lore, Hendrix An, Lecoutere Evelyne, Van Bockstal Mieke, Vandesompele Jo, Maynard Dawn, Braems Geert, Van Den Broecke Rudy, Müller Cathérine, Bracke Marc, Cocquyt Véronique, Denys Hannelore, De Wever Olivier
Adipose tissue secretes a plethora of adipokines as evidenced by characterization of subcutaneous and visceral adipose tissue secretomes. However, adipose tissue composition and secretion pattern is depot and disease dependent, influencing the adipose tissue secretome. We investigated the secretome of cancer-associated adipose tissue (CAAT) explants from breast cancer patients and explored its role in breast cancer proliferation. CAAT proteins were identified by LC-MS/MS and human protein antibody arrays and stimulated proliferation of three breast cancer cell lines...
May 3, 2017: Oncotarget
https://www.readbyqxmd.com/read/28525374/the-effect-of-rapamycin-nvp-bez235-aspirin-and-metformin-on-pi3k-akt-mtor-signaling-pathway-of-pik3ca-related-overgrowth-spectrum-pros
#13
Yasuyo Suzuki, Yasushi Enokido, Kenichiro Yamada, Mie Inaba, Kumiko Kuwata, Naoki Hanada, Tsuyoshi Morishita, Seiji Mizuno, Nobuaki Wakamatsu
The phosphatidylinositol 3-kinase (PI3K)/AKT/mTOR signaling pathway is critical for cellular growth and metabolism. Recently, mosaic or segmental overgrowth, a clinical condition caused by heterozygous somatic activating mutations in PIK3CA, was established as PIK3CA-related overgrowth spectrum (PROS). In this study, we report a Japanese female diagnosed with PROS, who presented with hyperplasia of the lower extremities, macrodactyly, multiple lipomatosis, and sparse hair. Sequencing and mutant allele frequency analysis of PIK3CA from affected tissues revealed that the patient had a heterozygous mosaic mutation (c...
May 2, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523599/differential-effects-of-early-life-nutrient-restriction-in-long-lived-ghr-ko-and-normal-mice
#14
Yimin Fang, Samuel McFadden, Justin Darcy, Cristal M Hill, Joshua A Huber, Steve Verhulst, John J Kopchick, Richard A Miller, Liou Y Sun, Andrzej Bartke
There is increasing evidence that growth hormone (GH) and insulin-like growth factor 1 (IGF-1) signaling (collectively referred to as somatotropic signaling) during development has a profound influence on aging and longevity. Moreover, the absence of GH action was shown to modify responses of adult mice to calorie restriction (CR) and other antiaging interventions. It was therefore of interest to determine whether GH resistance in GH receptor knockout (GHR-KO) mice would modify the effects of mild pre-weaning CR imposed by increasing the number of pups in a litter (the so-called litter crowding)...
May 18, 2017: GeroScience
https://www.readbyqxmd.com/read/28523512/reduced-adipogenesis-after-lung-tumor-exosomes-priming-in-human-mesenchymal-stem-cells-via-tgf%C3%AE-signaling-pathway
#15
Shihua Wang, Xiaoxia Li, Meiqian Xu, Jing Wang, Robert Chunhua Zhao
A key feature of cancer cachexia is the loss of adipose tissue, mainly due to increased lipolysis and an impairment of adipogenesis. Recent findings have shown that cancer exosomes promoted lipolysis in adipose tissue. However, effects of cancer exosomes on adipogenesis were not reported. In this study, we found that lung cancer exosomes could be internalized by human adipose tissue-derived mesenchymal stem cells (hAD-MSCs) and significantly inhibited hAD-MSC adipogenesis as demonstrated by Oil Red O staining and decreased expression of adipogenic-specific genes...
May 18, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28523306/a-novel-method-for-measuring-subcutaneous-adipose-tissue-using-ultrasound-in-children-interobserver-consistency
#16
Adela ChiriŢă-Emandi, Maria Camelia Papa, Liliana Abrudan, Mihaela Amelia Dobrescu, Maria Puiu, Iulian Puiu Velea, Corina Paul
BACKGROUND: Currently, sufficiently accurate field methods for body composition assessment in children are missing. The ultrasound method for assessing adipose tissue thickness has been used extensively in sport medicine. However, there are no studies looking at the reliability of this method in non-athletic children. This paper aims to determine the inter-observer reliability in measuring the uncompressed subcutaneous adipose tissue thickness using ultrasound, in children. SUBJECTS, MATERIALS AND METHODS: Forty healthy children (20 males, 20 females), median age 11...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28522656/comparison-between-different-measures-of-body-fat-with-kidney-function-decline-and-incident-ckd
#17
Magdalena Madero, Ronit Katz, Rachel Murphy, Anne Newman, Kushang Patel, Joachim Ix, Carmen Peralta, Suzanne Satterfield, Linda Fried, Michael Shlipak, Mark Sarnak
BACKGROUND AND OBJECTIVES: Although anthropometric measures of body fat are associated with development of CKD, they may not be able to distinguish between various forms of fat and therefore may be less accurate than computed tomography (CT) measures. We compared the association of CT and anthropometric measures of obesity with kidney outcomes in the Health Aging and Body Composition Study. DESIGN, SETTING, PARTICIPANTS, & MEASUREMENTS: Participants were recruited from March of 1997 through July of 1998...
May 18, 2017: Clinical Journal of the American Society of Nephrology: CJASN
https://www.readbyqxmd.com/read/28522646/mr-spectroscopy-of-hepatic-fat-and-adiponectin-and-leptin-levels-during-testosterone-therapy-in-type-2-diabetes-a-randomized-double-blinded-placebo-controlled-trial
#18
Line Velling Magnussen, Poul Erik Andersen, Anabel Diaz, Jelena Markovic Ostojic, Kurt Højlund, David M Hougaard, Anders Nymark Christensen, Torben Leo Nielsen, Marianne Skovsager Andersen
BACKGROUND: Men with type 2 diabetes mellitus (T2D) often have lowered testosterone levels and an increased risk of cardiovascular disease (CVD). Ectopic fat increases the risk of CVD, whereas subcutaneous gluteofemoral fat protects against CVD and has a beneficial adipokine secreting profile. HYPOTHESIS: Testosterone replacement therapy (TRT) may reduce the content of ectopic fat and improve the adipokine profile in men with T2D. DESIGN AND METHODS: A randomized, double-blinded, placebo-controlled study in 39 men aged 50-70 years with T2D and bioavailable testosterone levels <7...
May 18, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/28522333/development-of-qsars-for-parameterizing-physiology-based-toxicokinetic-models
#19
Dimosthenis Α Sarigiannis, Krystalia Papadaki, Periklis Kontoroupis, Spyros P Karakitsios
A Quantitative Structure Activity Relationship (QSAR) model was developed in order to predict physicochemical and biochemical properties of industrial chemicals of various groups. This model was based on the solvation equation, originally proposed by Abraham. In this work Abraham's solvation model got parameterized using artificial intelligence techniques such as artificial neural networks (ANNs) for the prediction of partitioning into kidney, heart, adipose, liver, muscle, brain and lung for the estimation of the bodyweight-normalized maximal metabolic velocity (Vmax) and the Michaelis - Menten constant (Km)...
May 15, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28522306/the-effects-of-chronic-testosterone-administration-on-body-weight-food-intake-and-adipose-tissue-are-changed-by-estrogen-treatment-in-female-rats
#20
Takeshi Iwasa, Toshiya Matsuzaki, Kiyohito Yano, Rie Yanagihara, Altankhuu Tungalagsuvd, Munkhsaikhan Munkhzaya, Yiliyasi Mayila, Akira Kuwahara, Minoru Irahara
In females, estrogens play pivotal roles in preventing excess body weight (BW) gain. On the other hand, the roles of androgens in female BW, appetite, and energy metabolism have not been fully examined. We hypothesized that androgens' effects on food intake (FI) and BW regulation change according to the estrogens' levels. To evaluate this hypothesis, the effects of chronic testosterone administration in ovariectomized (OVX) female rats with or without estradiol supplementation were examined in this study. Chronic testosterone administration decreased BW, FI, white adipose tissue (WAT) weight, and adipocyte size in OVX rats, whereas it increased BW, WAT weight, and adipocyte size in OVX with estradiol-administered rats...
May 17, 2017: Hormones and Behavior
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