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Adipose inflammation

Dong Wook Kim, Eun Ji Kim, Eun Na Kim, Myung Whun Sung, Tack-Kyun Kwon, Yong Woo Cho, Seong Keun Kwon
Vocal fold paralysis results from various etiologies and can induce voice changes, swallowing complications, and issues with aspiration. Vocal fold paralysis is typically managed using injection laryngoplasty with fat or synthetic polymers. Injection with autologous fat has shown excellent biocompatibility. However, it has several disadvantages such as unpredictable resorption rate, morbidities associated with liposuction procedure which has to be done in operating room under general anesthesia. Human adipose-derived extracellular matrix (ECM) grafts have been reported to form new adipose tissue and have greater biostability than autologous fat graft...
2016: PloS One
Maria das Graças Coelho de Souza, Luiz Guilherme Kraemer-Aguiar, Eliete Bouskela
Obesity is a crescent epidemic in the world, affecting more than half a billion of adults worldwide. Obesity is associated to main cardiovascular risk factors, such as insulin resistance, type 2 diabetes mellitus, high blood pressure and dyslipidemia. The excessive adiposity causes a dysregulation of adipokines secretion by adipose tissue, upregulating the expression of pro-inflammatory adipokines and downregulating the anti-inflammatory ones. This scenario contributes for the appearance of atherosclerosis...
October 18, 2016: Clinical Hemorheology and Microcirculation
Almudena Gómez-Hernández, Nuria Beneit, Sabela Díaz-Castroverde, Óscar Escribano
This review focuses on the contribution of white, brown, and perivascular adipose tissues to the pathophysiology of obesity and its associated metabolic and vascular complications. Weight gain in obesity generates excess of fat, usually visceral fat, and activates the inflammatory response in the adipocytes and then in other tissues such as liver. Therefore, low systemic inflammation responsible for insulin resistance contributes to atherosclerotic process. Furthermore, an inverse relationship between body mass index and brown adipose tissue activity has been described...
2016: International Journal of Endocrinology
Mariya Markova, Olga Pivovarova, Silke Hornemann, Stephanie Sucher, Turid Frahnow, Katrin Wegner, Jürgen Machann, Klaus Jürgen Petzke, Johannes Hierholzer, Ralf Lichtinghagen, Christian Herder, Maren Carstensen-Kirberg, Michael Roden, Natalia Rudovich, Susanne Klaus, Ralph Thomann, Rosemarie Schneeweiss, Sascha Rohn, Andreas F H Pfeiffer
BACKGROUND & AIMS: Non-alcoholic fatty liver disease (NAFLD) is associated with increased risk of hepatic, cardiovascular, and metabolic diseases. High-protein diets, rich in methionine and branched chain amino acids (BCAAs), apparently reduce liver fat but may induce insulin resistance. We investigated the effects of diets high in animal protein vs plant protein, which differ in levels of methionine and BCAA, in subjects with type 2 diabetes and NAFLD. We examined levels of liver fat, lipogenic indices, markers of inflammation, serum levels of fibroblast growth factor 21 (FGF21), and activation of signaling pathways in adipose tissue...
October 17, 2016: Gastroenterology
Amanda Faria Assoni, Giuliana Castello, Marcos Valadares, Melinda Beccari, Juliana Gomes, Mayra Pelatti, Miguel Mitne-Neto, Valdemir Melechco Carvalho, Mayana Zatz
Duchenne muscular dystrophy (DMD) is a lethal X-linked disorder caused by null mutations in the dystrophin gene. Although the primary defect is the deficiency of muscle dystrophin, secondary events, including chronic inflammation, fibrosis and muscle regeneration failure are thought to actively contribute to disease progression. Despite several advances, there is still no effective therapy for DMD. Therefore, the potential regenerative capacities, as well as immune-privileged properties of Mesenchymal Stromal Cells (MSCs), have been the focus of intense investigation in different animal models aiming the treatment of these disorders...
October 20, 2016: Stem Cells and Development
Ning Xia, Huige Li
Under physiological conditions, perivascular adipose tissue (PVAT) attenuates agonist-induced vasoconstriction by releasing vasoactive molecules including hydrogen peroxide, angiotensin 1-7, adiponectin, methyl palmitate, hydrogen sulfide, nitric oxide (NO) and leptin. This anticontractile function of PVAT is lost under conditions of obesity. The central mechanism underlying PVAT dysfunction in obesity is likely to be an "obesity triad" (consisting of PVAT hypoxia, inflammation and oxidative stress) that leads to dysregulation of PVAT-derived vasoregulators...
October 20, 2016: British Journal of Pharmacology
Lingling He, Xiaoli Liu, Lijia Wang, Zhiyun Yang
The findings regarding the effects of thiazolidinediones (TZDs) in nonalcoholic steatohepatitis (NASH) patients have been inconsistent, and the assessment of different clinical variables for evaluating the effects of TZDs confound a direct comparison of the results of different randomized clinical trials (RCTs), especially with regard to lifestyle changes. In this paper, we performed a meta-analysis of randomized controlled trials to clarify the effects of TZD treatment with and without lifestyle changes on histological markers of NASH and clinical variables related to insulin resistance (IR), hyperlipidemia, and obesity...
October 2016: Medicine (Baltimore)
Vamsee D Myneni, Aisha Mousa, Mari T Kaartinen
F13A1 gene, which encodes for Factor XIII-A blood clotting factor and a transglutaminase enzyme, was recently identified as a potential causative gene for obesity in humans. In our previous in vitro work, we showed that FXIII-A regulates preadipocyte differentiation and modulates insulin signaling via promoting plasma fibronectin assembly into the extracellular matrix. To understand the role of FXIII-A in whole body energy metabolism, here we have characterized the metabolic phenotype of F13a1-/- mice. F13a1-/- and F13a1+/+ type mice were fed chow or obesogenic, high fat diet for 20 weeks...
October 19, 2016: Scientific Reports
Tatsuya Kondo, Rieko Goto, Kaoru Ono, Sayaka Kitano, Mary Ann Suico, Miki Sato, Motoyuki Igata, Junji Kawashima, Hiroyuki Motoshima, Takeshi Matsumura, Hirofumi Kai, Eiichi Araki
Activation of heat shock response (HSR) improves accumulated visceral adiposity and metabolic abnormalities in type 2 diabetes. To identify the optimal intervention strategy of the activation of the HSR provided by mild electrical stimulation (MES) with heat shock (HS) in type 2 diabetes. This study was a prospective, frequency-escalating, randomized, open-label, triple-arm trial in Japan. A total of 60 obese type 2 diabetes patients were randomized into three groups receiving two, four, or seven treatments per week for 12 weeks...
October 19, 2016: Scientific Reports
Mahalingam Balakumar, Durai Prabhu, Chandrakumar Sathishkumar, Paramasivam Prabu, Namita Rokana, Ramesh Kumar, Srividhya Raghavan, Avinash Soundarajan, Sunita Grover, Virender Kumar Batish, Viswanathan Mohan, Muthuswamy Balasubramanyam
PURPOSE: Diabetes and obesity are characterized by glucose intolerance, fat deposition, inflammation, and dyslipidemia. Recent reports postulated that distinct gut microbiota alterations were observed in obese/diabetic subjects and modulating gut microbiota beneficially through specific probiotics could be a potential therapeutic option for type 2 diabetes/obesity. Therefore, we attempted to study the efficacy of probiotics of Indian gut origin (Lactobacillus plantarum MTCC5690 and Lactobacillus fermentum MTCC5689) along with a positive control, Lactobacillus rhamnosus (LGG) on glucose/lipid homeostasis in high-fat-diet-induced diabetic animal model...
October 18, 2016: European Journal of Nutrition
Magdalena Gibas-Dorna, Monika Szulińska, Piotr Turkowski, Justyna Kupsz, Anna Sowińska, Kinga Mikrut, Małgorzata Bernatek, Jacek Piatek
The aim of the current study was to examine the liposuction-induced metabolic changes with regard to release of major adipokines and insulin sensitivity in overweight male patients. Seventeen overweight male patients aged 37.15 ± 9.60 years (6 with diabetes type 2, 11 without comorbidities) and 10 age-matched healthy lean controls were enrolled in the study. Using Vibration Amplification of Sound Energy at Resonance System, ultrasound assisted liposuction was applied onto the deep layers of abdominal subcutaneous adipose tissue...
October 18, 2016: American Journal of Men's Health
Kyoung Im Cho, Jung Ho Heo, Hyun Soo Kim, Sung Il Im, Tae Joon Cha
OBJECTIVE: Epicardial fat tissue reflects visceral adiposity and inflammation, and neutrophil to lymphocyte ratio (NLR) has been investigated as important inflammatory marker in cardiovascular disease. We aimed to investigate the relationship of echocardiographic epicardial fat thickness (EFT) and NLR with diurnal blood pressure (BP) changes in patients with recently diagnosed essential hypertension. DESIGN AND METHOD: A total of 647 hypertensive patients underwent echocardiography and 24-hours ambulatory BP monitoring...
September 2016: Journal of Hypertension
Ayako Uchinaka, Yuri Kawashima, Yuki Sano, Mamoru Yoneda, Shogo Ito, Yusuke Sano, Kai Nagasawa, Natsumi Matsuura, Yuichiro Yamada, Toyoaki Murohara, Kohzo Nagata
OBJECTIVE: The pineal hormone melatonin, which regulates the body's circadian rhythm, possesses anti-oxidative and anti-inflammatory effects and thereby improves metabolic disorders. Ramelteon is a potent and highly selective agonist of melatonin receptors and attenuates age-associated hypertension and body weight gain in spontaneously hypertensive rats. However, the effects of ramelteon on cardiovascular and metabolic disorders in metabolic syndrome (MetS) remain unclear. We investigated the effects of ramelteon on cardiac and adipose tissue pathology in a rat model of MetS...
September 2016: Journal of Hypertension
Myung-Shik Lee
Low-grade systemic inflammation in adipose tissues or liver, is an important etiologic factor in insulin resistance. LPS is an important element causing such metabolic inflammation, and intestinal flora is considered a major source of systemic LPS. We studied changes of intestinal microbiota associated with high-fat diet (HFD) that causes insulin resistance and metabolic stress. 16S rRNA gene sequencing showed that HFD significantly decreased the abundance of a mucin-degrading bacterium Akkermansia muciniphila compared to control diet...
September 2016: Journal of Hypertension
Patricio Lopez-Jaramillo
Cardiovascular diseases (CVD) are major causes of death and illness worldwide. In recent decades an increased prevalence of CVD mortality has been reported in low-medium income countries, which has been associated with changes in life styles, deficiencies in health systems and the persistence of social inequities.The metabolic syndrome comprises a cluster of cardiometabolic risk factors, with insulin resistance and increased adiposity as its central features. Identifying individuals with metabolic syndrome is important due to its association with an increased risk of coronary heart disease and type 2 diabetes mellitus (DM2)...
September 2016: Journal of Hypertension
D Löffler, K Landgraf, D Rockstroh, J T Schwartze, H Dunzendorfer, W Kiess, A Körner
BACKGROUND: Meteorin-like (METRNL) is a recently described circulating protein shown to be highly expressed in white adipose tissue and to beneficially affect energy metabolism in mice. OBJECTIVE: We systematically evaluated the role of METRNL for human adipogenesis and its association with obesity, browning and hyperinsulinemia in children. In addition, we assessed the functional relevance of METRNL for human adipogenesis. RESULTS: METRNL expression decreased during human adipocyte differentiation in vitro...
October 17, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
Weijie Chen, Junlian Wang, Yong Luo, Tao Wang, Xiaochun Li, Aiyun Li, Jia Li, Kang Liu, Baolin Liu
BACKGROUND: This study was designed to investigate whether ginsenoside Rb1 (Rb1) and compound K (CK) ameliorated insulin resistance by suppressing endoplasmic reticulum (ER) stress-induced inflammation in adipose tissue. METHODS: To induce ER stress, epididymal adipose tissue from mice or differentiated 3T3 adipocytes were exposed to high glucose. The effects of Rb1 and CK on reactive oxygen species production, ER stress, TXNIP/NLRP3 inflammasome activation, inflammation, insulin signaling activation, and glucose uptake were detected by western blot, emzyme-linked immunosorbent assay, or fluorometry...
October 2016: Journal of Ginseng Research
Chiara Sartori, Pietro Lazzeroni, Silvia Merli, Viviana Dora Patianna, Francesca Viaroli, Francesca Cirillo, Sergio Amarri, Maria Elisabeth Street
Adipokines are cytokines produced mainly by adipose tissue, besides many other tissues such as placenta, ovaries, peripheral-blood mononuclear cells, liver, muscle, kidney, heart, and bone marrow. Adipokines play a significant role in the metabolic syndrome and in cardiovascular diseases, have implications in regulating insulin sensitivity and inflammation, and have significant effects on growth and reproductive function. The objective of this review was to analyze the functions known today of adiponectin, leptin, resistin, and visfatin from placenta throughout childhood and adolescence...
2016: Mediators of Inflammation
Gwendalyn J Randolph, Shashi Bala, Jean-François Rahier, Michael W Johnson, Peter L Wang, ILKe Nalbantoglu, Laurent Dubuquoy, Amélie Chau, Benjamin Pariente, Alex Kartheuser, Bernd H Zinselmeyer, Jean-Frederic Colombel
Early pathological descriptions of Crohn disease (CD) argued for a potential defect in lymph transport; however, this concept has not been thoroughly investigated. In mice, poor healing in response to infection-induced tissue damage can cause hyperpermeable lymphatic collecting vessels in mesenteric adipose tissue that impair antigen and immune cell access to mesenteric lymph nodes (LNs), which normally sustain appropriate immunity. To investigate whether analogous changes might occur in human intestinal disease, we established a three-dimensional imaging approach to characterize the lymphatic vasculature in mesenteric tissue from controls or patients with CD...
October 13, 2016: American Journal of Pathology
Min Zhang, Zhongqi Zhou, Jinguang Wang, Shufa Li
Inflammatory pathways play an important role in impaired glucose metabolism and insulin production. Adipose tissue inflammation is characterized by infiltration and expansion of macrophages, leading to type 2 diabetes (T2D). Macrophage polarization contributes to various inflammatory responses and cytokine production profiles. MiR-130b is involved in regulating immune response and metabolism. However, the specific role in macrophage polarization and glucose metabolism of T2D has not been reported. In this study, C57BL/6 mice were fed a high-fat diet to induce T2D mice model...
October 13, 2016: Immunology Letters
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