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Pro- inflammatory diet

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https://www.readbyqxmd.com/read/29775616/amelioration-of-uvb-induced-oxidative-stress-and-inflammation-in-fat-1-transgenic-mouse-skin
#1
Hye-Won Yum, Seong Hoon Kim, Jing X Kang, Young-Joon Surh
ω-3 polyunsaturated fatty acids (PUFAs), which are abundant in some fish oils, are known to scavenge lipid peroxyl radicals and increase host immunoresponsiveness. As UVB-induced oxidative stress and inflammation have been implicated in apoptotic cell death, this study was designed to investigate the anti-inflammatory, anti-oxidative, and anti-apoptotic capacity of fat-1 transgenic mice capable of converting ω-6 to ω-3 PUFAs. Wild-type (WT) C57BL/6 mice and fat-1 mice were maintained on the AIN-93 diet supplemented with 10% safflower oil rich in ω-6 PUFAs for 5 weeks...
May 15, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29773671/targeted-inhibition-of-cd74-attenuates-adipose-cox-2-mif-mediated-m1-macrophage-polarization-and-retards-obesity-related-adipose-tissue-inflammation-and-insulin-resistance
#2
Pei-Chi Chan, Ting-Ni Wu, Ying-Chuan Chen, Chieh-Hua Lu, Martin Wabitsch, Yu-Feng Tian, Po-Shiuan Hsieh
Adipose tissue (AT) inflammation is crucial to the development of obesity-associated insulin resistance. Our aim was to investigate the contribution of COX-2/MIF-mediated crosstalk between hypertrophic adipocytes and macrophages to the etiology of AT inflammation and involvement of CD74 using human SGBS adipocytes, THP-1 macrophages and mice fed a high-fat (HF) diet. The MIF and CD74 mRNA levels in the adipocytes and SVCs (stromal vascular cells) of white fat were highly correlated with body weight, HOMA-IR and adipose macrophage marker expression levels, especially those in SVCs...
May 17, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29772372/palmitate-induces-nitric-oxide-production-and-inflammatory-cytokine-expression-in-zebrafish
#3
Seon-Heui Cha, Yongha Hwang, Kil-Nam Kim, Hee-Sook Jun
Inflammation markers in zebrafish embryos reflect a toxic response that is common to other animal models and humans. Free fatty acids (FFAs) are known to cause damage in various tissues by inducing inflammation. In this study, we investigated whether a FFA (palmitate) induces inflammation in zebrafish embryos. Nitrous oxide (NO) production and cyclooxygenase-2 (COX-2) mRNA expression were increased in palmitate-treated zebrafish embryos in a dose-dependent manner. mRNA expression of pro-inflammatory cytokines, interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF- α), were also increased...
May 14, 2018: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/29771935/cell-iron-status-influences-macrophage-polarization
#4
Rafiou Agoro, Meriem Taleb, Valerie F J Quesniaux, Catherine Mura
Macrophages play crucial roles in innate immune response and in the priming of adaptive immunity, and are characterized by their phenotypic heterogeneity and plasticity. Reprogramming intracellular metabolism in response to microenvironmental signals is required for M1/M2 macrophage polarization and function. Here we assessed the influence of iron on the polarization of the immune response in vivo and in vitro. Iron-enriched diet increased M2 marker Arg1 and Ym1 expression in liver and peritoneal macrophages, while iron deficiency decreased Arg1 expression...
2018: PloS One
https://www.readbyqxmd.com/read/29770758/dietary-l-threonine-supplementation-attenuates-lipopolysaccharide-induced-inflammatory-responses-and-intestinal-barrier-damage-of-broiler-chickens-at-an-early-age
#5
Yueping Chen, Hao Zhang, Yefei Cheng, Yue Li, Chao Wen, Yanmin Zhou
This study was conducted to investigate the protective effects of l-threonine (l-Thr) supplementation on growth performance, inflammatory responses and intestinal barrier function of young broilers challenged with lipopolysaccharide (LPS). A total of 144 1-d-old male chicks were allocated to one of three treatments: non-challenged broilers fed a basal diet (control group), LPS-challenged broilers fed a basal diet without l-Thr supplementation and LPS-challenged broilers fed a basal diet supplemented with 3·0 g/kg l-Thr...
June 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29769419/heart-rate-reduction-with-ivabradine-in-the-early-phase-of-atherosclerosis-is-protective-in-the-endothelium-of-apoe-deficient-mice
#6
G Aquila, M B Morelli, F Vieceli Dalla Sega, F Fortini, P Nigro, C Caliceti, M Ferracin, M Negrini, A Pannuti, M Bonora, P Pinton, R Ferrari, P Rizzo
Ivabradine, a heart rate reducing agent, protects the vascular system by unidentified mechanisms. We sought to determine the effects of the treatment with ivabradine, started before plaque formation, on early transcriptional changes and endothelium lesions in regions of aorta subjected to disturbed blood flow. Six week-old apolipoprotein E-deficient (ApoE-/- ) mice, fed a low-fat diet, were treated with ivabradine to determine the effect on transcriptional changes (2-and 4-week treatment) and on lesions formation (19-week treatment) in the endothelium of the aortic arch...
February 2018: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29767264/elemental-diet-inhibits-pro%C3%A2-inflammatory-cytokine-production-in-keratinocytes-through-the-suppression-of-nf%C3%A2-%C3%AE%C2%BAb-activation
#7
Koji Harada, Tarannum Ferdous, Yoichi Mizukami, Katsuaki Mishima
An elemental diet (ED) has been reported to reduce oral mucositis and dermatitis induced by chemotherapy. However, its molecular mechanism of action as an anti‑inflammatory agent is still unknown. The aim of the present study was to clarify whether ED confers its anti‑inflammatory action via reduction of pro‑inflammatory cytokine production in keratinocytes in vivo and in vitro. We evaluated the efficacy of ED in the treatment of 5‑fluorouracil (5‑FU)‑induced dermatitis of nude mice, and examined the expression of pro‑inflammatory cytokines such as tumor necrosis factor‑α (TNF‑α), interleukin (IL)‑1β and IL‑6 using immunohistochemistry...
May 16, 2018: Oncology Reports
https://www.readbyqxmd.com/read/29767107/effects-of-purified-zearalenone-on-selected-immunological-and-histopathologic-measurements-of-spleen-in-post-weanling-gilts
#8
Peng Chen, Tingjun Liu, Shuzhen Jiang, Zaibin Yang, Libo Huang, Faxiao Liu
The present study was aimed at investigating the adverse effects of dietary zearalenone (ZEA) on the lymphocyte proliferation rate (LPR), interleukin-2 (IL-2), mRNA expressions of pro-inflammatory cytokines, and histopathologic changes of spleen in post-weanling gilts. A total of 20 crossbred piglets (Yorkshire × Landrace × Duroc) with an initial BW of 10.36 ± 1.21 kg (21 d of age) were used in the study. Piglets were fed a basal diet with an addition of 0, 1.1, 2.0, or 3.2 mg/kg purified ZEA for 18 d  ad libitum ...
September 2017: Animal nutrition
https://www.readbyqxmd.com/read/29767099/growth-performance-nutrient-digestibility-antioxidant-capacity-blood-biochemical-biomarkers-and-cytokines-expression-in-broiler-chickens-fed-different-phytogenic-levels
#9
Vasileios Paraskeuas, Konstantinos Fegeros, Irida Palamidi, Christine Hunger, Konstantinos C Mountzouris
The effects of inclusion levels of a phytogenic feed additive (PFA), characterized by menthol anethol and eugenol, on broiler growth performance, nutrient digestibility, biochemical biomarkers and total antioxidant capacity (TAC) of plasma and meat, as well as on the relative expression of selected cytokines, were studied in a 42-d experiment. A total of 225 one-day-old male Cobb broiler chickens were assigned into 3 treatments, with 5 replicates of 15 chickens each. Chickens were fed maize-soybean meal basal diets following a 3 phase (i...
June 2017: Animal nutrition
https://www.readbyqxmd.com/read/29760499/hepatic-stellate-cells-secrete-ccl5-to-induce-hepatocyte-steatosis
#10
Byeong-Moo Kim, Ahmed Maher Abdelfattah, Robin Vasan, Bryan C Fuchs, Michael Y Choi
Non-alcoholic fatty liver disease (NAFLD) encompasses a wide spectrum of disease severity, starting from pure steatosis, leading to fatty inflammation labeled as non-alcoholic steatohepatitis (NASH), and finally fibrosis leading to cirrhosis. Activated hepatic stellate cells (HSCs) are known to contribute to fibrosis, but less is known about their function during NAFLD's early stages prior to fibrosis. We developed an ex vivo assay that cocultures primary HSCs from mouse models of liver disease with healthy hepatocytes to study their interaction...
May 14, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29755475/impact-of-a-3-months-vegetarian-diet-on-the-gut-microbiota-and-immune-repertoire
#11
Chenchen Zhang, Andrea Björkman, Kaiye Cai, Guilin Liu, Chunlin Wang, Yin Li, Huihua Xia, Lijun Sun, Karsten Kristiansen, Jun Wang, Jian Han, Lennart Hammarström, Qiang Pan-Hammarström
The dietary pattern can influence the immune system directly, but may also modulate it indirectly by regulating the gut microbiota. Here, we investigated the effect of a 3-months lacto-ovo-vegetarian diet on the diversity of gut microbiota and the immune system in healthy omnivorous volunteers, using high-throughput sequencing technologies. The short-term vegetarian diet did not have any major effect on the diversity of the immune system and the overall composition of the metagenome. The prevalence of bacterial genera/species with known beneficial effects on the intestine, including butyrate-producers and probiotic species and the balance of autoimmune-related variable genes/families were, however, altered in the short-term vegetarians...
2018: Frontiers in Immunology
https://www.readbyqxmd.com/read/29755364/early-effects-of-a-low-fat-fructose-rich-diet-on-liver-metabolism-insulin-signaling-and-oxidative-stress-in-young-and-adult-rats
#12
Raffaella Crescenzo, Luisa Cigliano, Arianna Mazzoli, Rosa Cancelliere, Rosa Carotenuto, Margherita Tussellino, Giovanna Liverini, Susanna Iossa
The increase in the use of refined food, which is rich in fructose, is of particular concern in children and adolescents, since the total caloric intake and the prevalence of metabolic syndrome are increasing continuously in these populations. Nevertheless, the effects of high fructose diet have been mostly investigated in adults, by focusing on the effect of a long-term fructose intake. Notably, some reports evidenced that even short-term fructose intake exerts detrimental effects on metabolism. Therefore, the aim of this study was to compare the metabolic changes induced by the fructose-rich diet in rats of different age, i...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29753026/chronic-hyperinsulinemia-promotes-meta-inflammation-and-extracellular-matrix-deposition-in-adipose-tissue-implications-of-nitric-oxide
#13
Durgesh Kumar, Kripa Shankar, Saraswati Patel, Abhishek Gupta, Salil Varshney, Sanchita Gupta, Sujith Rajan, Ankita Srivastava, Achchhe Lal Vishwakarma, Anil N Gaikwad
Various imperative studies support the notion that hyperinsulinemia (HI) itself serves as the common link between adipose tissue inflammation (ATI) and metabolic syndrome. However, the contribution of HI mediated ATI and its metabolic consequences are yet to be explored. We induced chronic HI per se in mice by administration of exogenous insulin for 8 weeks through mini-osmotic pumps. For the reduction of circulating insulin in response to excess calorie intake, we have partially ablated β-cells by using streptozotocin (STZ) in the diet-induced obesity (DIO) and genetic mice models (db/db)...
May 10, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29750882/occurrence-of-serum-antibodies-against-wheat-alpha-amylase-inhibitor-0-19-in-celiac-disease
#14
D Sánchez, S Štěpánová-Honzová, M Hospodková, I Hoffmanová, V Hábová, P Halada, H Tlaskalová-Hogenová, L Tučková
The alcohol-soluble fraction of wheat gluten (gliadins) induces in genetically susceptible individuals immunologically mediated celiac disease (CLD). However, gliadins and related cereal proteins are not unique foodstuff targets of CLD patients´ immune system. Non-gluten wheat alpha-amylase inhibitor 0.19 (AAI 0.19) has been found to be capable of activating human monocyte-derived dendritic cells and inducing pro-inflammatory status in intestinal mucosa of patients with celiac disease (CLD). The possible contribution of this reactivity in incomplete remission of CLD patients on a gluten-free diet (GFD) is matter of contention...
May 10, 2018: Physiological Research
https://www.readbyqxmd.com/read/29745429/xanthine-oxidase-activity-exerts-pro-oxidative-and-pro-inflammatory-effects-in-serum-of-silver-catfish-fed-with-a-diet-contaminated-with-aflatoxin-b-1
#15
M D Baldissera, C F Souza, P H Doleski, C C Zeppenfeld, S Descovi, A S Da Silva, B Baldisserotto
Several studies have associated the involvement of xanthine oxidase (XO) activity, a source of uric acid and reactive oxygen species (ROS), to pro-oxidative and pro-inflammatory effects during pathological conditions. Considering this, the aim of this study was to evaluate whether upregulation on seric XO activity may be a pathway involved in the oxidative stress in fish exposed to a diet contaminated with aflatoxin B1 (AFB1 ), as well as whether it may be considered a pathway involved in ROS and NOx production...
May 10, 2018: Journal of Fish Diseases
https://www.readbyqxmd.com/read/29743187/the-effects-of-farnesoid-x-receptor-activation-on-arachidonic-acid-metabolism-nf-kb-signaling-and-hepatic-inflammation
#16
Zhibo Gai, Michele Visentin, Ting Gui, Lin Zhao, Wolfgang E Thasler, Stephanie Hausler, Ivan Hartling, Alessio Cremonesi, Christian Hiller, Gerd A Kullak-Ublick
Inflammation has a recognized role in non-alcoholic fatty liver disease (NAFLD) progression. The present work studied the effect of high fat diet (HFD) on arachidonic acid metabolism in the liver and investigated the role of the farnesoid X receptor (FXR, NR1H4) in eicosanoid biosynthetic pathways and NF-kB signaling, major modulators of the inflammatory cascade. Mice were fed a HFD to induce NAFLD, then, treated with the FXR ligand obeticholic acid (OCA). Histology and gene expression analysis were performed on liver tissue...
May 9, 2018: Molecular Pharmacology
https://www.readbyqxmd.com/read/29742452/anti-senescence-compounds-a-potential-nutraceutical-approach-to-healthy-aging
#17
REVIEW
Felicia Gurău, Simone Baldoni, Francesco Prattichizzo, Emma Espinosa, Francesco Amenta, Antonio Domenico Procopio, Maria Cristina Albertini, Massimiliano Bonafè, Fabiola Olivieri
The desire of eternal youth seems to be as old as mankind. However, the increasing life expectancy experienced by populations in developed countries also involves a significantly increased incidence of the most common age-related diseases (ARDs). Senescent cells (SCs) have been identified as culprits of organismal aging. Their number rises with age and their senescence-associated secretory phenotype fuels the chronic, pro-inflammatory systemic state (inflammaging) that characterizes aging, impairing the regenerative ability of stem cells and increasing the risk of developing ARDs...
May 6, 2018: Ageing Research Reviews
https://www.readbyqxmd.com/read/29740775/evaluation-of-plasma-biomarkers-of-inflammation-in-patients-with-maple-syrup-urine-disease
#18
Giselli Scaini, Tássia Tonon, Carolina F Moura de Souza, Patricia F Schuck, Gustavo C Ferreira, João Quevedo, João Seda Neto, Tatiana Amorim, Jose S Camelo, Ana Vitoria Barban Margutti, Rafael Hencke Tresbach, Fernanda Sperb-Ludwig, Raquel Boy, Paula F V de Medeiros, Ida Vanessa D Schwartz, Emilio Luiz Streck
Maple syrup urine disease (MSUD) is an autosomal recessive inherited disorder that affects branched-chain amino acid (BCAA) catabolism and is associated with acute and chronic brain dysfunction. Recent studies have shown that inflammation may be involved in the neuropathology of MSUD. However, these studies have mainly focused on single or small subsets of proteins or molecules. Here we performed a case-control study, including 12 treated-MSUD patients, in order to investigate the plasmatic biomarkers of inflammation, to help to establish a possible relationship between these biomarkers and the disease...
May 8, 2018: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/29739755/erv1-chemr23-signaling-protects-from-atherosclerosis-by-modifying-oxldl-uptake-and-phagocytosis-in-macrophages
#19
Andres Laguna-Fernandez, Antonio Checa, Miguel Carracedo, Gonzalo Artiach, Marcelo H Petri, Roland Baumgartner, Maria J Forteza, Xintong Jiang, Teodora Andonova, Mary E Walker, Jesmond Dalli, Hildur Arnardottir, Anton Gisterå, Silke Thul, Craig E Wheelock, Gabrielle Paulsson-Berne, Daniel F J Ketelhuth, Göran K Hansson, Magnus Bäck
Background -In addition to enhanced pro-inflammatory signaling, impaired resolution of vascular inflammation plays a key role in atherosclerosis. Pro-resolving lipid mediators formed through the 12/15 lipoxygenase pathways exert protective effects against murine atherosclerosis. n-3 polyunsaturated fatty acids, including eicosapentaenoic acid (EPA), serve as the substrate for the formation of lipid mediators, which transduce potent anti-inflammatory and pro-resolving actions through their cognate G-protein-coupled receptors...
May 8, 2018: Circulation
https://www.readbyqxmd.com/read/29735977/increased-tim-3-expression-alleviates-liver-injury-by-regulating-macrophage-activation-in-mcd-induced-nash-mice
#20
Xianhong Du, Zhuanchang Wu, Yong Xu, Yuan Liu, Wen Liu, Tixiao Wang, Chunyang Li, Cuijuan Zhang, Fan Yi, Lifen Gao, Xiaohong Liang, Chunhong Ma
As an immune checkpoint, Tim-3 plays roles in the regulation of both adaptive and innate immune cells including macrophages and is greatly involved in chronic liver diseases. However, the precise roles of Tim-3 in nonalcoholic steatohepatitis (NASH) remain unstated. In the current study, we analyzed Tim-3 expression on different subpopulations of liver macrophages and further investigated the potential roles of Tim-3 on hepatic macrophages in methionine and choline-deficient diet (MCD)-induced NASH mice. The results of flow cytometry demonstrated the significantly increased expression of Tim-3 on all detected liver macrophage subsets in MCD mice, including F4/80+ CD11b+ , F4/80+ CD68+ , and F4/80+ CD169+ macrophages...
May 7, 2018: Cellular & Molecular Immunology
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