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Adipose inflammation

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https://www.readbyqxmd.com/read/28088613/adipocyte-and-epidermal-fatty-acid-binding-protein-serum-concentrations-in-patients-with-lipodystrophy
#1
Konstanze Miehle, Thomas Ebert, Susan Kralisch, Annett Hoffmann, Jürgen Kratzsch, Haiko Schlögl, Michael Stumvoll, Mathias Fasshauer
OBJECTIVE: Lipodystrophy (LD) syndromes are associated with diabetes mellitus, hypertriglyceridemia, and coronary artery disease. One pathogenetic factor of LD is dysregulation of several adipokines. However, the insulin resistance- and dyslipidemia-promoting adipokines adipocyte (AFABP) and epidermal (EFABP) fatty acid-binding protein have not been investigated in non-HIV-associated LD so far. MATERIAL AND METHODS: We performed a cross-sectional analysis of AFABP and EFABP serum concentrations in 37 LD patients and 37 age-, gender-, and body mass index-matched healthy controls...
January 12, 2017: Cytokine
https://www.readbyqxmd.com/read/28088407/far-off-and-close-up-dry-matter-intake-modulate-indicators-of-immunometabolic-adaptations-to-lactation-in-subcutaneous-adipose-tissue-of-pasture-based-transition-dairy-cows
#2
M Vailati-Riboni, G Farina, F Batistel, A Heiser, M D Mitchell, M A Crookenden, C G Walker, J K Kay, S Meier, J R Roche, J J Loor
The common practice of increasing dietary energy density during the close-up dry period (last ∼3 wk prepartum) has been recently associated with a higher incidence of metabolic disorders after calving. Despite these reports, over-feeding of metabolizable energy (ME) during the far-off, nonlactating period is a common management policy aimed at achieving optimum calving body condition score (BCS) in pasture-based systems, as cows are generally thinner than total mixed ration cows at the end of lactation. Our hypothesis was that both far-off and close-up overfeeding influence the peripartum adipose tissue changes associated with energy balance and inflammatory state...
January 11, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28086928/resolvin-rvd2-reduces-hypothalamic-inflammation-and-rescues-mice-from-diet-induced-obesity
#3
Livia B Pascoal, Bruna Bombassaro, Albina F Ramalho, Andressa Coope, Rodrigo F Moura, Felipe Correa-da-Silva, Leticia Ignacio-Souza, Daniela Razolli, Diogo de Oliveira, Rodrigo Catharino, Licio A Velloso
BACKGROUND: Diet-induced hypothalamic inflammation is an important mechanism leading to dysfunction of neurons involved in controlling body mass. Studies have shown that polyunsaturated fats can reduce hypothalamic inflammation. Here, we evaluated the presence and function of RvD2, a resolvin produced from docosahexaenoic acid, in the hypothalamus of mice. METHODS: Male Swiss mice were fed either chow or a high-fat diet. RvD2 receptor and synthetic enzymes were evaluated by real-time PCR and immunofluorescence...
January 5, 2017: Journal of Neuroinflammation
https://www.readbyqxmd.com/read/28077838/low-grade-metabolically-induced-inflammation-mediators-interleukin-6-adiponectin-and-tnf-%C3%AE-serum-levels-in-obese-pregnant-patients-in-the-perinatal-period
#4
Malgorzata Zembala-Szczerba, Andrzej Jaworowski, Hubert Huras, Dorota Babczyk, Robert Jach
BACKGROUND Obesity is a major clinical problem. The number of obese pregnant women is rising rapidly. The consequences of obesity are significant and affect every aspect of perinatal care for both the mother and the developing fetus. Adipose tissue may be responsible for chronic subclinical inflammation in obesity, being a source of inflammatory mediators. The study was designed to evaluate the analysis of the serum concentration of inflammatory mediators, including interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-α), and adiponectin, in obese pregnant women at full-term pregnancies...
January 12, 2017: Medical Science Monitor Basic Research
https://www.readbyqxmd.com/read/28077171/prostate-specific-il-6-transgene-autonomously-induce-prostate-neoplasm-through-amplifying-inflammation-in-the-prostate-and-peri-prostatic-adipose-tissue
#5
Gang Liu, Jinyu Zhang, Lewis Frey, Xiao Gang, Kongming Wu, Qian Liu, Michael Lilly, Jennifer Wu
BACKGROUND: The causative role of the pro-inflammatory cytokine IL-6 in prostate cancer progression has been well established at molecular level. However, whether and how IL-6 may play a role in prostate cancer risk and development is not well defined. One limitation factor to acquiring this knowledge is the lack of appropriate animal models. METHODS: We generated a novel line of prostate-specific IL-6 transgenic mouse model. We compared the prostate pathology, tumorigenic signaling components, and prostate tumor microenvironment of the IL-6 transgenic mice with wild type littermates...
January 11, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28076613/the-role-of-dietary-fatty-acid-intake-in-inflammatory-gene-expression-a-critical-review
#6
Daniela Mayumi Rocha, Josefina Bressan, Helen Hermana Hermsdorff
CONTEXT AND OBJECTIVE: Diet is an important modifiable factor involved in obesity-induced inflammation. We reviewed clinical trials that assessed the effect of consumption of different fatty acids on the expression of inflammation-related genes, such as cytokines, adipokines, chemokines and transcription factors. DESIGN AND SETTING: Narrative review study conducted at a research center. METHODS: This was a review on the effect of fat intake on inflammatory gene expression in humans...
January 5, 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28076416/the-ccr2-inhibitor-propagermanium-attenuates-diet-induced-insulin-resistance-adipose-tissue-inflammation-and-non-alcoholic-steatohepatitis
#7
Petra Mulder, Anita M van den Hoek, Robert Kleemann
BACKGROUND AND AIM: Obese patients with chronic inflammation in white adipose tissue (WAT) have an increased risk of developing non-alcoholic steatohepatitis (NASH). The C-C chemokine receptor-2 (CCR2) has a crucial role in the recruitment of immune cells to WAT and liver, thereby promoting the inflammatory component of the disease. Herein, we examined whether intervention with propagermanium, an inhibitor of CCR2, would attenuate tissue inflammation and NASH development. METHODS: Male C57BL/6J mice received a high-fat diet (HFD) for 0, 6, 12 and 24 weeks to characterize the development of early disease symptoms of NASH, i...
2017: PloS One
https://www.readbyqxmd.com/read/28075222/expression-of-myd88-in-adipose-tissue-of-obese-people-is-there-some-role-in-the-development-of-metabolic-syndrome
#8
Ada M Cuevas, Mariana Lazo, Isabel Zuñiga, Fernando Carrasco, Jim J Potter, Veronica Alvarez, Marcos Berry, Fernando Maluenda, Mario Ferrario, Jeanne M Clark
BACKGROUND: The mechanism leading to the development of metabolic complications in obese individuals is not fully understood. Thus, the objective of this study was to examine differences in insulin resistance, inflammation, cytokine and adipokine levels, and expression of selected genes across obese individuals with different number of metabolic syndrome (MetS) components. METHODS: Forty obese individuals who underwent bariatric surgery, divided in three groups based on the number of components of MetS, in addition to abdominal obesity (0, 1, and 2-3 additional components), were studied...
January 11, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28074537/neuroblastoma-causes-alterations-of-the-intestinal-microbiome-gut-hormones-inflammatory-cytokines-and-bile-acid-composition
#9
Christoph Castellani, Georg Singer, Margarita Kaiser, Thomas Kaiser, Jianfeng Huang, Daniela Sperl, Karl Kashofer, Guenter Fauler, Barbara Guertl-Lackner, Gerald Höfler, Holger Till
OBJECTIVE: To assess the effect of neuroblastoma (NB) on the intestinal microbiome, metabolism, and inflammatory parameters in a murine model. MATERIALS AND METHODS: Athymic Hsd:Fox1nu mice received subperitoneal implantation of human NB cells (MHH-NB11) (tumor group, TG) or culture medium (sham group). Following 10 weeks of tumor growth, all animals were sacrificed to collect total white adipose tissue (WAT). Luminex assays were performed for gut hormone and inflammation marker analysis...
January 11, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28074058/intracellular-atp-in-balance-of-pro-and-anti-inflammatory-cytokines-in-adipose-tissue-with-and-without-tissue-expansion
#10
J H Lee, Y Zhang, Z Zhao, X Ye, X Zhang, H Wang, J Ye
OBJECTIVES: To understand the mechanism of white fat expansion in the presence of inflammation, we examined the balance of pro- and anti-inflammatory cytokines in epididymal fat during weight gain in DIO mice. METHODS: The pro- and anti-inflammatory cytokines were examined in white fat of diet-induced obese mice and lean mice. The mechanism of gene expression was investigated with a focus on intracellular ATP (iATP). ATP activity was tested in cellular and non-cellular systems in activation of serine kinases (IKKβ, JNK and ERK)...
January 11, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/28071854/serum-chemerin-is-associated-with-inflammatory-and-metabolic-parameters-results-of-a-population-based-study
#11
Stephanie Zylla, Maik Pietzner, Jens-Peter Kühn, Henry Völzke, Marcus Dörr, Matthias Nauck, Nele Friedrich
OBJECTIVE: This study aimed to confirm existing assumptions about the associations of circulating chemerin with inflammatory and metabolic parameters in a large population-based study. METHODS: Data of 3,986 subjects from the Study of Health in Pomerania were analyzed. Residual method was used to investigate the different associations of visceral (VAT) and subcutaneous adipose tissue (SAT) with serum chemerin levels. Multivariable regression models were applied to examine the association of chemerin with high-sensitivity C-reactive protein, fibrinogen, glucose, glycated hemoglobin, lipid profile, blood pressure, diabetes, dyslipidemia, and hypertension...
January 10, 2017: Obesity
https://www.readbyqxmd.com/read/28070709/influence-of-resveratrol-on-endoplasmic-reticulum-stress-and-expression-of-adipokines-in-adipose-tissues-adipocytes-induced-by-high-calorie-diet-or-palmitic-acid
#12
Li Chen, Ting Wang, Guanjun Chen, Nuojin Wang, Li Gui, Fang Dai, Zhaohui Fang, Qiu Zhang, Yunxia Lu
PURPOSE: This study aimed to determine whether resveratrol treatment alleviates endoplasmic reticulum stress and changes the expression of adipokines in adipose tissues and cells. METHODS: 8-week-old male C57BL/6 mice were fed a high-calorie diet (HCD group) or high-calorie diet supplemented with resveratrol (high-calorie diet  + resveratrol group) for 3 months. Insulin resistance, serum lipids and proinflammatory indices, the size and inflammatory cell infiltration in subcutaneous and visceral adipose tissues were analyzed...
January 9, 2017: Endocrine
https://www.readbyqxmd.com/read/28070318/piceatannol-exhibits-anti-inflammatory-effects-on-macrophages-interacting-with-adipocytes
#13
Takayuki Yamamoto, Yongjia Li, Yuki Hanafusa, Yu-Sheng Yeh, Hiroko Maruki-Uchida, Shinpei Kawakami, Masahiko Sai, Tsuyoshi Goto, Tatsuhiko Ito, Teruo Kawada
Piceatannol (PIC), a natural analog of resveratrol (RES), is a phytochemical found in passion fruit seeds. To clarify the effects of PIC on obesity-induced inflammation in adipose tissue, we investigated the anti-inflammatory activity of PIC-related compounds (PIC, RES, and metabolites from PIC) in culture models of obese adipose tissue. Lipopolysaccharide (LPS) and conditioned medium from 3T3-L1 adipocytes (3T3-L1-CM) enhanced proinflammatory gene expression and synthesis of nitric oxide (NO), tumor necrosis factor-α (TNF-α), and interleukin-6 (IL-6) in RAW264...
January 2017: Food Science & Nutrition
https://www.readbyqxmd.com/read/28068351/phenotype-and-tissue-expression-as-a-function-of-genetic-risk-in-polycystic-ovary-syndrome
#14
Cindy T Pau, Tim Mosbruger, Richa Saxena, Corrine K Welt
Genome-wide association studies and replication analyses have identified (n = 5) or replicated (n = 10) DNA variants associated with risk for polycystic ovary syndrome (PCOS) in European women. However, the causal gene and underlying mechanism for PCOS risk at these loci have not been determined. We hypothesized that analysis of phenotype, gene expression and metformin response as a function of genotype would identify candidate genes and pathways that could provide insight into the underlying mechanism for risk at these loci...
2017: PloS One
https://www.readbyqxmd.com/read/28067333/transcription-regulator-trip-br2-mediates-er-stress-induced-brown-adipocytes-dysfunction
#15
Guifen Qiang, Hyerim Whang Kong, Victoria Gil, Chong Wee Liew
In contrast to white adipose tissue, brown adipose tissue (BAT) is known to play critical roles for both basal and inducible energy expenditure. Obesity is associated with reduction of BAT function; however, it is not well understood how obesity promotes BAT dysfunction, especially at the molecular level. Here we show that the transcription regulator TRIP-Br2 mediates ER stress-induced inhibition of lipolysis and thermogenesis in BAT. Using in vitro, ex vivo, and in vivo approaches, we demonstrate that obesity-induced inflammation upregulates brown adipocytes TRIP-Br2 expression via the ER stress pathway and amelioration of ER stress in mice completely abolishes high fat diet-induced upregulation of TRIP-Br2 in BAT...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28067023/elevated-serum-milk-fat-globule-epidermal-growth-factor-8-levels-in-type-2-diabetic-patients-are-suppressed-by-overweight-or-obese-status
#16
Yuanyuan Li, Wenzhuo Ran, Jiaqiang Zhang, Shi Chen, Yihang Li, Deng Luo, Chen Wang, Weiping Jia
Inflammation is the most important link between obesity and type 2 diabetes (T2D). Although milk fat globule-epidermal growth factor 8 (MFG-E8) is a key mediator in anti-inflammatory responses, its role in obesity and diabetes is not yet completely understood. We aimed to measure MFG-E8 serum levels and to explore the role of MFG-E8 in obesity and T2D. Fasting serum MFG-E8 levels were quantified by enzyme-linked immunosorbent assay for 168 individuals, whose oral glucose tolerance test was conducted, and levels of inflammatory factors, including tumor necrosis factor-α (TNF-α) and C-reactive protein, were measured...
January 9, 2017: IUBMB Life
https://www.readbyqxmd.com/read/28066896/parasite-excretory-secretory-products-and-their-effects-on-metabolic-syndrome
#17
Jenny Crowe, Felicity E Lumb, Margaret M Harnett, William Harnett
Obesity, one of the main causes of metabolic syndrome (MetS), is an increasingly common health and economic problem worldwide, and one of the major risk factors for developing type 2 diabetes and cardiovascular disease. Chronic, low-grade inflammation is associated with MetS and obesity. A dominant type 2/anti-inflammatory response is required for metabolic homeostasis within adipose tissue: during obesity, this response is replaced by infiltrating, inflammatory macrophages and T cells. Helminths and certain protozoan parasites are able to manipulate the host immune response towards a TH2 immune phenotype that is beneficial for their survival and there is emerging data that there is an inverse correlation between the incidence of MetS and helminth infections, suggesting that, as with autoimmune and allergic diseases, helminths may play a protective role against MetS disease...
January 9, 2017: Parasite Immunology
https://www.readbyqxmd.com/read/28063476/short-communication-immunohistochemical-localization-of-the-immune-cell-marker-cd68-in-bovine-adipose-tissue-impact-of-tissue-alterations-and-excessive-fat-accumulation-in-dairy-cows
#18
S Häussler, D Germeroth, L Laubenthal, L F Ruda, J Rehage, S Dänicke, H Sauerwein
With the onset of lactation energy from feed intake is mostly insufficient to meet the requirements of dairy cows. Lipid mobilization from adipose tissue (AT) could lead to a compromised inflammatory response enhancing the incidence for diseases. In addition, tissue alterations can occur, displaying areas of necrosis and inflammation. Furthermore, over-conditioned cows mobilizing more lipids from AT than thin cows are prone to develop metabolic disorders. This might lead to an increased infiltration of phagocytic immune cells into AT...
January 2017: Veterinary Immunology and Immunopathology
https://www.readbyqxmd.com/read/28063251/perivascular-adipose-tissue-inflammation-in-vascular-disease
#19
REVIEW
Ryszard Nosalski, Tomasz J Guzik
Perivascular adipose tissue (PVAT) plays a critical role in the pathogenesis of cardiovascular disease. In vascular pathologies perivascular adipose tissue increases in volume and becomes dysfunctional, with altered cellular composition and molecular characteristics. PVAT dysfunction is characterized by its inflammatory character, oxidative stress, diminished production of vaso-protective adipocyte derived relaxing factors (ADRFs) and increased production of paracrine factors such as resistin, leptin, cytokines (IL-6, TNF-α) and chemokines (RANTES, MCP-1)...
January 7, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28062496/adipocyte-specific-deficiency-of-nadph-oxidase-4-delays-the-onset-of-insulin-resistance-and-attenuates-adipose-tissue-inflammation-in-obesity
#20
Laura J Den Hartigh, Mohamed Omer, Leela Goodspeed, Shari Wang, Tomasz Wietecha, Kevin D O'Brien, Chang Yeop Han
OBJECTIVE: Obesity is associated with insulin resistance and adipose tissue inflammation. Reactive oxygen species (ROS) increase in adipose tissue during the development of obesity. We previously showed that in response to excess nutrients like glucose and palmitate, adipocytes generated ROS via NADPH oxidase (NOX) 4, the major adipocyte isoform, instead of using mitochondrial oxidation. However, the role of NOX4-derived ROS in the development of whole body insulin resistance, adipocyte inflammation, and recruitment of macrophages to adipose tissue during the development of obesity is unknown...
December 29, 2016: Arteriosclerosis, Thrombosis, and Vascular Biology
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