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Inflammation metabolism

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https://www.readbyqxmd.com/read/28441630/winter-to-summer-change-in-vitamin-d-status-reduces-systemic-inflammation-and-bioenergetic-activity-of-human-peripheral-blood-mononuclear-cells
#1
Emily K Calton, Kevin N Keane, Raquel Raizel, Jordan Rowlands, Mario J Soares, Philip Newsholme
BACKGROUND: Vitamin D status [25(OH)D] has recently been reported to be associated with altered cellular bioenergetic profiles of peripheral blood mononuclear cells (PBMCs). No study has tracked the seasonal variation of 25(OH)D and its putative influence on whole body energy metabolism, cellular bioenergetic profiles, inflammatory markers and clinical chemistry. MATERIAL AND METHODS: Whole body energy metabolism and substrate utilisation were measured by indirect calorimetry...
April 13, 2017: Redox Biology
https://www.readbyqxmd.com/read/28441075/autophagy-and-kidney-inflammation
#2
Tomonori Kimura, Yoshitaka Isaka, Tamotsu Yoshimori
Inflammation plays a pivotal role in pathophysiological processes of kidney diseases. Macroautophagy/autophagy plays multiple roles in inflammatory responses, and the regulation of inflammation by autophagy has great potential as a treatment for damaged kidneys. A growing body of evidence suggests autophagy protects kidney from versatile kidney inflammatory insults, including those that are acute, chronic, metabolic, and aging-related. Noteworthy is that, in kidney, mitophagy is active, and damaged lysosomes are removed by autophagy...
April 25, 2017: Autophagy
https://www.readbyqxmd.com/read/28440769/advanced-glycation-end-products-in-morbid-obesity-and-after-bariatric-surgery-when-glycemic-memory-starts-to-fail
#3
Enric Sánchez, Juan Antonio Baena-Fustegueras, María Cruz de la Fuente, Liliana Gutiérrez, Marta Bueno, Susana Ros, Albert Lecube
BACKGROUND AND OBJECTIVE: Advanced glycation end-products (AGEs) are a marker of metabolic memory. Their levels increases when oxidative stress, inflammation, or chronic hyperglycemia exists. The role of morbid obesity in AGE levels, and the impact of bariatric surgery on them are unknown. PATIENTS AND METHOD: An observational study with three sex- and age-matched cohorts: 52 patients with obesity, 46 patients undergoing bariatric surgery in the last 5 years, and 46 control subjects...
January 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28440766/unfavorable-cytokine-and-adhesion-molecule-profiles-during-and-after-pregnancy-in-women-with-gestational-diabetes-mellitus
#4
María Del Mar Roca-Rodríguez, Cristina López-Tinoco, Álvaro Fernández-Deudero, Mora Murri, María Victoria García-Palacios, María Del Amor García-Valero, Francisco José Tinahones, Manuel Aguilar-Diosdado
BACKGROUND: Gestational diabetes mellitus is a significant risk factor for metabolic syndrome and cardiovascular disease. AIMS: To assess the relationships between components of the metabolic syndrome and cytokine and adhesion molecule levels in women with GDM during pregnancy and after delivery. PATIENTS AND METHODS: A prospective case-control study on a sample of 126 pregnant women (63 with and 63 without gestational diabetes mellitus). In an intra-subject analysis, 41 women with history of gestational diabetes mellitus and 21 controls were re-assessed in the postpartum period...
January 2017: Endocrinol Diabetes Nutr
https://www.readbyqxmd.com/read/28440734/cholinergic-activation-suppresses-palmitate-induced-macrophage-activation-and-improves-acylation-stimulating-protein-resistance-in-co-cultured-adipocytes
#5
Jing Wu, Zhou-Yang Jiao, Rui-Zhen Li, Hui-Ling Lu, Hao-Hao Zhang, Katherine Cianflone
Acylation-stimulating protein (ASP), produced through activation of the alternative complement immune system, modulates lipid metabolism. Using a trans-well co-culture cell model, the mitigating role of α7-nicotinic acetylcholine receptor (α7nAChR)-mediated cholinergic pathway on ASP resistance was evaluated. ASP signaling in adipocytes via its receptor C5L2 and signaling intermediates Gαq, Gβ, phosphorylated protein kinase C-α, and protein kinase C-ζ were markedly suppressed in the presence of TNFα or medium from palmitate-treated RAW264...
May 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28440493/the-extracellular-signal-regulated-kinase-1-2-pathway-in-neurological-diseases-a-potential-therapeutic-target-review
#6
Jing Sun, Guangxian Nan
Signaling pathways are critical modulators of a variety of physiological and pathological processes, and the abnormal activation of some signaling pathways can contribute to disease progression in various conditions. As a result, signaling pathways have emerged as an important tool through which the occurrence and development of diseases can be studied, which may then lead to the development of novel drugs. Accumulating evidence supports a key role for extracellular signal-regulated kinase 1/2 (ERK1/2) signaling in the embryonic development of the central nervous system (CNS) and in the regulation of adult brain function...
April 21, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28440284/cyp2j2-and-its-metabolites-eets-attenuate-insulin-resistance-via-regulating-macrophage-polarization-in-adipose-tissue
#7
Meiyan Dai, Lujin Wu, Peihua Wang, Zheng Wen, Xizhen Xu, Dao Wen Wang
Macrophages in adipose tissue are associated with obesity-induced low-grade inflammation, which contributed to insulin resistance and the related metabolic diseases. Previous studies demonstrated the beneficial effects of epoxyeicosatrienoic acids (EETs) on metabolic disorders and inflammation. Here we investigated the effects of CYP2J2-EETs-sEH metabolic pathway on insulin resistance in mice and the potential mechanisms. High fat diet (HFD)-induced obesity caused metabolic dysfunction with more weight gain, elevated glucose and lipids levels, impaired glucose tolerance and insulin sensitivity, while increase in EETs level by rAAV-mediated CYP2J2 overexpression, administration of sEH inhibit TUPS or EETs infusion significantly attenuated these metabolic disorders...
April 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28440046/attenuated-low-grade-inflammation-following-long-term-dietary-intervention-in-postmenopausal-women-with-obesity
#8
Caroline Blomquist, Malin Alvehus, Jonas Burén, Mats Ryberg, Christel Larsson, Bernt Lindahl, Caroline Mellberg, Ingegerd Söderström, Elin Chorell, Tommy Olsson
OBJECTIVE: Abdominal fat accumulation after menopause is associated with low-grade inflammation and increased risk of metabolic disorders. Effective long-term lifestyle treatment is therefore needed. METHODS: Seventy healthy postmenopausal women (age 60 ± 5.6 years) with BMI 32.5 ± 5.5 were randomized to a Paleolithic-type diet (PD) or a prudent control diet (CD) for 24 months. Blood samples and fat biopsies were collected at baseline, 6 months, and 24 months to analyze inflammation-related parameters...
May 2017: Obesity
https://www.readbyqxmd.com/read/28439667/myricetin-induced-brown-adipose-tissue-activation-prevents-obesity-and-insulin-resistance-in-db-db-mice
#9
Tao Hu, Xiaoxue Yuan, Gang Wei, Haoshu Luo, Hyuek Jong Lee, Wanzhu Jin
PURPOSE: Myricetin, a dietary flavonoid, is effective in the treatment of obesity and insulin resistance by increasing glucose transport and lipogenesis in adipocyte and diminishing systemic inflammation in obesity. However, it has not been revealed yet whether myricetin is associated with brown adipose tissue (BAT) activation that tightly mediates systemic energy metabolism. Therefore, this study assessed whether myricetin activated brown adipose tissue in db/db mouse. METHODS: Myricetin (400 mg/kg) in distilled water was fed daily by oral gavage to leptin receptor-deficient db/db male mice at 4 weeks of age for 14 weeks...
April 24, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28438472/shared-metabolic-and-immune-inflammatory-oxidative-and-nitrosative-stress-pathways-in-the-metabolic-syndrome-and-mood-disorders
#10
REVIEW
Luiz Gustavo Piccoli de Melo, Sandra Odebrecht Vargas Nunes, George Anderson, Heber Odebrecht Vargas, Décio Sabbattini Barbosa, Piotr Galecki, André F Carvalho, Michael Maes
This review examines the shared immune-inflammatory, oxidative and nitrosative stress (IO&NS) and metabolic pathways underpinning metabolic syndrome (MetS), bipolar disorder (BD) and major depressive disorder (MDD). Shared pathways in both MetS and mood disorders are low grade inflammation, including increased levels of pro-inflammatory cytokines and acute phase proteins, increased lipid peroxidation with formation of malondialdehyde and oxidized low density lipoprotein cholesterol (LDL-c), hypernitrosylation, lowered levels of antioxidants, most importantly zinc and paraoxonase (PON1), increased bacterial translocation (leaky gut), increased atherogenic index of plasma and Castelli risk indices; and reduced levels of high-density lipoprotein (HDL-c) cholesterol...
April 21, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28437263/a-randomised-trial-to-evaluate-preoperative-oral-carbohydrate-administration-on-insulin-resistance-in-off-pump-coronary-artery-bypass-patients
#11
Bora Lee, Sarah Soh, Jae-Kwang Shim, Ha Y Kim, Hyelin Lee, Young-Lan Kwak
BACKGROUND: In fasting cardiac surgery patients, preoperative carbohydrate (CHO) drink intake attenuated insulin resistance and improved cardiac metabolism, although its beneficial effects were not evident after cardiac surgery possibly due to cardiopulmonary bypass-related extreme systemic inflammation. OBJECTIVE: We aimed to evaluate whether preoperative CHO intake affected insulin resistance and free-fatty acid (FFA) concentrations in off-pump coronary revascularisation...
April 21, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28436986/adiposity-amplifies-the-genetic-risk-of-fatty-liver-disease-conferred-by-multiple-loci
#12
Stefan Stender, Julia Kozlitina, Børge G Nordestgaard, Anne Tybjærg-Hansen, Helen H Hobbs, Jonathan C Cohen
Complex traits arise from the interplay between genetic and environmental factors. The actions of these factors usually appear to be additive, and few compelling examples of gene-environment synergy have been documented. Here we show that adiposity significantly amplifies the effect of three sequence variants (encoding PNPLA3 p.I148M, TM6SF2 p.E167K, and GCKR p.P446L) associated with nonalcoholic fatty liver disease (NAFLD). Synergy between adiposity and genotype promoted the full spectrum of NAFLD, from steatosis to hepatic inflammation to cirrhosis...
April 24, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28436274/depletion-of-hdl3-high-density-lipoprotein-and-altered-functionality-of-hdl2-in-blood-from-sickle-cell-patients
#13
Eric Soupene, Sandra K Larkin, Frans A Kuypers
In sickle cell disease (SCD), alterations of cholesterol metabolism is in part related to abnormal levels and activity of plasma proteins such as lecithin cholesterol acyltransferase (LCAT), and apolipoprotein A-I (ApoA-I). In addition, the size distribution of ApoA-I high density lipoproteins (HDL) differs from normal blood. The ratio of the amount of HDL2 particle relative to the smaller higher density pre-β HDL (HDL3) particle was shifted toward HDL2. This lipoprotein imbalance is exacerbated during acute vaso-occlusive episodes (VOE) as the relative levels of HDL3 decrease...
January 1, 2017: Experimental Biology and Medicine
https://www.readbyqxmd.com/read/28436075/does-a-meso-caval-shunt-have-positive-effects-in-a-pig-large-for-size-liver-transplantation-model
#14
Ana Cristina Aoun Tannuri, Daniel de Albuquerque Rangel Moreira, Alessandro Belon, Maria Cecília Mendonça Coelho, Josiane Oliveira Gonçalves, Suellen Serafini, Uenis Tannuri
In pediatric liver transplantations with LFS grafts, higher incidences of graft dysfunction probably occur due to IRI. It was postulated that increasing the blood supply to the graft by means of a meso-caval shunt could ameliorate the IRI. Eleven pigs underwent liver transplantation and were divided into two groups: LFS and LFS+SHUNT group. A series of flowmetric, metabolic, histologic, and molecular studies were performed. No significant metabolic differences were observed between the groups. One hour after reperfusion, portal flow was significantly lower in the recipients than in the donors, proving that the graft was maintained in low portal blood flow, although the shunt could promote a transient increase in the portal blood flow and a decrease in the arterial flow...
April 24, 2017: Pediatric Transplantation
https://www.readbyqxmd.com/read/28435982/-changes-in-biological-functions-of-high-density-lipoprotein-after-abnormal-modification
#15
Hang Qu, Yang Yu, Shu-Cun Qin, Guo-Hua Song
High-density lipoprotein (HDL) is composed of apolipoproteins, lipids and functional proteins. HDL protects against atherosclerosis (AS) by reverse cholesterol transport (RCT). HDL inhibits the lipid oxidation, inflammation and restores endothelial function. During systemic inflammation or metabolic disorders, HDL can be modified abnormally and converted to a dysfunctional type, which results in the loss of anti-inflammatory factors including apolipoprotein A-I (apoA-I), paraoxonase (PON) and platelet activating factor acetylhydrolase (PAF-AH), and gains of pro-inflammatory factors such as serum amyloid A (SAA), triglyceride (TG) and oxidative lipid...
April 25, 2017: Sheng Li Xue Bao: [Acta Physiologica Sinica]
https://www.readbyqxmd.com/read/28435687/an-evaluation-of-low-volume-high-intensity-intermittent-training-hiit-for-health-risk-reduction-in-overweight-and-obese-men
#16
Benjamin M Kelly, Soteris Xenophontos, James A King, Myra A Nimmo
ᅟ: Both sprint interval training (SIT) and high-intensity intermittent training (HIIT) have been described as time-efficient strategies for inducing favourable metabolic and cardiorespiratory adaptations in healthy and diseased participants. BACKGROUND: To date, little attention has been given to profiling the potential health benefits of HIIT or modified HIIT training within overweight and obese cohorts with particular focus on inflammation. Within this pilot trial, we tested the hypothesis that 6 sessions of HIIT performed over 2 weeks with 1-2 days' rest would improve aerobic capacity, glucose metabolism and inflammatory profile in an overweight and obese male cohort...
2017: BMC Obesity
https://www.readbyqxmd.com/read/28435064/salvianolate-attenuates-renal-fibrosis-in-rat-models-of-diabetic-nephropathy-by-inhibiting-inflammation-and-oxidative-stress-mechanisms
#17
Chongxiang Xiong, Jianrao Lu, Xinhua Wang, Monica V Masucci
OBJECTIVE: Mounting evidence has shown that inflammation and oxidative stress are involved in the development and progression of diabetic nephropathy. Salvianolate is proven to have multiple bioactivities including anti-inflammation and anti-oxidative stress effects in diverse diseases. However, its role in rat models of diabetic nephropathy remains unclear. METHODS: In this study, we examined the renoprotective effect of Salvianolate on rat models of diabetic nephropathy induced by streptozotocin intraperitoneal injection...
April 20, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28434881/muramyl-dipeptide-based-postbiotics-mitigate-obesity-induced-insulin-resistance-via-irf4
#18
Joseph F Cavallari, Morgan D Fullerton, Brittany M Duggan, Kevin P Foley, Emmanuel Denou, Brennan K Smith, Eric M Desjardins, Brandyn D Henriksbo, Kalvin J Kim, Brian R Tuinema, Jennifer C Stearns, David Prescott, Philip Rosenstiel, Brian K Coombes, Gregory R Steinberg, Jonathan D Schertzer
Intestinal dysbiosis contributes to obesity and insulin resistance, but intervening with antibiotics, prebiotics, or probiotics can be limited by specificity or sustained changes in microbial composition. Postbiotics include bacterial components such as lipopolysaccharides, which have been shown to promote insulin resistance during metabolic endotoxemia. We found that bacterial cell wall-derived muramyl dipeptide (MDP) is an insulin-sensitizing postbiotic that requires NOD2. Injecting MDP lowered adipose inflammation and reduced glucose intolerance in obese mice without causing weight loss or altering the composition of the microbiome...
April 6, 2017: Cell Metabolism
https://www.readbyqxmd.com/read/28434761/improvement-in-nutritional-status-in-patients-with-chronic-kidney-disease-4-by-a-nutrition-education-program-with-no-impact-on-renal-function-and-determined-by-male-sex
#19
Almudena Pérez-Torres, Elena González Garcia, Helena Garcia-Llana, Gloria Del Peso, Ana María López-Sobaler, Rafael Selgas
OBJECTIVE: Protein-energy wasting (PEW) is associated with increased morbidity and mortality and a rapid deterioration of kidney function in patients with chronic kidney disease (CKD). However, there is little information regarding the effect of nutrition intervention. The aims of this study were to evaluate the efficacy and safety of a nutrition education program (NEP) in patients with nondialysis dependent CKD (NDD-CKD), based on the diagnostic criteria for PEW proposed by the International Society of Renal Nutrition and Metabolism...
April 20, 2017: Journal of Renal Nutrition
https://www.readbyqxmd.com/read/28434116/activation-of-the-serotonin-pathway-is-associated-with-poor-outcome-in-copd-exacerbation-results-of-a-long-term-cohort-study
#20
Marc A Meier, Manuel Ottiger, Alaadin Vögeli, Christian Steuer, Luca Bernasconi, Robert Thomann, Mirjam Christ-Crain, Christoph Henzen, Claus Hoess, Werner Zimmerli, Andreas Huber, Beat Mueller, Philipp Schuetz
BACKGROUND/INTRODUCTION: Indoleamine 2,3-dioxygenase (IDO) metabolizes tryptophan to kynurenine. An increase of its activity is associated with severity in patients with pneumonia. In chronic obstructive pulmonary disease (COPD) patients, an elevation of serotonin has been reported. Experimental models showed that cigarette smoke inhibits monoamine oxidase (MAO) leading to higher levels of serotonin. We investigated the prognostic ability of tryptophan, serotonin, kynurenine, IDO, and tryptophan hydroxylase (TPH) to predict short- and long-term outcomes in patients with a COPD exacerbation...
April 22, 2017: Lung
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