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Inflammation metabolism

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https://www.readbyqxmd.com/read/28346926/microbiota-and-obesity
#1
Erika Isolauri
Obesity is globally the most prevalent nutritional disorder. Multifaceted therapeutic approaches are called for to halt the cascade from neonatal adiposity/high birth weight to childhood excessive weight gain/adult obesity with comorbidities. Recent experimental and clinical data provide one new target for interventions aiming to close this vicious circle: the microbiota. An aberrant gut microbiota, dysbiosis, induces immune and metabolic disturbances both locally and, consequent upon impaired gut barrier function, also systemic low-grade inflammation, which is causally linked to insulin resistance...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28346858/circulating-soluble-il-6-receptor-concentration-and-visceral-adipocyte-size-are-related-to-insulin-resistance-in-taiwanese-adults-with-morbid-obesity
#2
Feng-Chih Kuo, Ya-Hsien Huang, Fu-Huang Lin, Yi-Jen Hung, Chang-Hsun Hsieh, Chieh-Hua Lu, Sheng-Chiang Su, Chia-Luen Huang, Chien-Hsing Lee, Nain-Feng Chu
BACKGROUND: Morbid obesity is related to chronic inflammation and many metabolic complications. Interleukin (IL)-6 plays a pivotal pathophysiological role in obesity, and IL-6 trans-signaling through the soluble IL-6 receptor (sIL-6R) has a major proinflammatory effect. The aim of this study was to investigate the association between sIL-6R, adipocyte size, and insulin resistance in morbidly obese individuals. METHODS: We measured concentrations of sIL-6R, high-sensitivity C-reactive protein, and lipid parameters and estimated homeostasis model assessment of insulin resistance (HOMA-IR) before the patients underwent bariatric surgery...
March 27, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28346409/the-metabolic-er-stress-sensor-ire1%C3%AE-suppresses-alternative-activation-of-macrophages-and-impairs-energy-expenditure-in-obesity
#3
Bo Shan, Xiaoxia Wang, Ying Wu, Chi Xu, Zhixiong Xia, Jianli Dai, Mengle Shao, Feng Zhao, Shengqi He, Liu Yang, Mingliang Zhang, Fajun Nan, Jia Li, Jianmiao Liu, Jianfeng Liu, Weiping Jia, Yifu Qiu, Baoliang Song, Jing-Dong J Han, Liangyou Rui, Sheng-Zhong Duan, Yong Liu
Obesity is associated with metabolic inflammation and endoplasmic reticulum (ER) stress, both of which promote metabolic disease progression. Adipose tissue macrophages (ATMs) are key players orchestrating metabolic inflammation, and ER stress enhances macrophage activation. However, whether ER stress pathways underlie ATM regulation of energy homeostasis remains unclear. Here, we identified inositol-requiring enzyme 1α (IRE1α) as a critical switch governing M1-M2 macrophage polarization and energy balance...
March 27, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28346397/the-process-and-regulatory-components-of-inflammation-in-brain-oncogenesis
#4
REVIEW
A G M Mostofa, Surendra R Punganuru, Hanumantha Rao Madala, Mohammad Al-Obaide, Kalkunte S Srivenugopal
Central nervous system tumors comprising the primary cancers and brain metastases remain the most lethal neoplasms and challenging to treat. Substantial evidence points to a paramount role for inflammation in the pathology leading to gliomagenesis, malignant progression and tumor aggressiveness in the central nervous system (CNS) microenvironment. This review summarizes the salient contributions of oxidative stress, interleukins, tumor necrosis factor-α (TNF-α), cyclooxygenases, and transcription factors such as signal transducer and activator of transcription 3 (STAT3) and nuclear factor kappa-light-chain-enhancer of activated B-cells (NF-κB) and the associated cross-talks to the inflammatory signaling in CNS cancers...
March 27, 2017: Biomolecules
https://www.readbyqxmd.com/read/28346237/current-and-future-pharmacologic-treatment-of-nonalcoholic-steatohepatitis
#5
Bubu A Banini, Arun J Sanyal
PURPOSE OF REVIEW: Nonalcoholic steatohepatitis (NASH), the aggressive form of nonalcoholic fatty liver disease (NAFLD), can progress to cirrhosis and hepatocellular cancer in 5-15% of patients and is rapidly becoming the leading cause for end-stage liver disease. Dietary caloric restriction and exercise, currently the cornerstone of therapy for NAFLD, can be difficult to achieve and maintain, underscoring the dire need for pharmacotherapy. This review presents the agents currently used in managing NAFLD and their pharmacologic targets...
March 24, 2017: Current Opinion in Gastroenterology
https://www.readbyqxmd.com/read/28345767/nlrp3-inflammasome-its-regulation-and-involvement-in-atherosclerosis
#6
REVIEW
Zahra Hoseini, Fatemeh Sepahvand, Bahman Rashidi, Amirhossein Sahebkar, Aria Masoudifar, Hamed Mirzaei
Inflammasomes are intracellular complexes involved in the innate immunity that convert proIL-1β and proIL-18 to mature forms and initiate pyroptosis via cleaving procaspase-1. The most well-known inflammasome is NLRP3. Several studies have indicated a decisive and important role of NLRP3 inflammasome, IL-1β, IL-18, and pyroptosis in atherosclerosis. Modern hypotheses introduce atherosclerosis as an inflammatory/lipid-based disease and NLRP3 inflammasome has been considered as a link between lipid metabolism and inflammation because crystalline cholesterol and oxidized low-density lipoprotein (oxLDL) (two abundant components in atherosclerotic plaques) activate NLRP3 inflammasome...
March 27, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28345580/differential-roles-of-caspase-1-and-caspase-11-in-infection-and-inflammation
#7
Si Ming Man, Rajendra Karki, Benoit Briard, Amanda Burton, Sebastien Gingras, Stephane Pelletier, Thirumala-Devi Kanneganti
Caspase-1, also known as interleukin-1β (IL-1β)-converting enzyme (ICE), regulates antimicrobial host defense, tissue repair, tumorigenesis, metabolism and membrane biogenesis. On activation within an inflammasome complex, caspase-1 induces pyroptosis and converts pro-IL-1β and pro-IL-18 into their biologically active forms. "ICE(-/-)" or "Casp1(-/-)" mice generated using 129 embryonic stem cells carry a 129-associated inactivating passenger mutation on the caspase-11 locus, essentially making them deficient in both caspase-1 and caspase-11...
March 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28343598/incremental-prognostic-value-of-global-longitudinal-strain-and-18f-fludeoxyglucose-positron-emission-tomography-in-patients-with-systemic-sarcoidosis
#8
Brett W Sperry, Ahmed Ibrahim, Kazuaki Negishi, Tomoko Negishi, Parag Patel, Zoran B Popović, Daniel Culver, Richard Brunken, Thomas H Marwick, Balaji Tamarappoo
In independent studies, abnormal global longitudinal strain (GLS) and myocardial inflammation or scar detected by 18F-fludeoxyglucose positron emission tomography (FDG-PET) are associated with poor prognosis among patients with high likelihood for cardiac sarcoidosis. However, commonly used imaging modalities have not been evaluated in the same population. Our goals were to examine the relation between GLS and FDG-PET, and to evaluate the incremental prognostic value of these imaging techniques for predicting major adverse cardiac events (MACE) in patients suspected to have cardiac sarcoidosis...
March 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28343461/the-impact-of-maternal-obesity-on-inflammatory-processes-and-consequences-for-later-offspring-health-outcomes
#9
S A Segovia, M H Vickers, C M Reynolds
Obesity is a global epidemic, affecting both developed and developing countries. The related metabolic consequences that arise from being overweight or obese are a paramount global health concern, and represent a significant burden on healthcare systems. Furthermore, being overweight or obese during pregnancy increases the risk of offspring developing obesity and other related metabolic complications in later life, which can therefore perpetuate a transgenerational cycle of obesity. Obesity is associated with a chronic state of low-grade metabolic inflammation...
March 27, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28342610/intentionally-induced-intestinal-barrier-dysfunction-causes-inflammation-affects-metabolism-and-reduces-productivity-in-lactating-holstein-cows
#10
S K Kvidera, M J Dickson, M Abuajamieh, D B Snider, M V Sanz Fernandez, J S Johnson, A F Keating, P J Gorden, H B Green, K M Schoenberg, L H Baumgard
Study objectives were to evaluate the effects of intentionally reduced intestinal barrier function on productivity, metabolism, and inflammatory indices in otherwise healthy dairy cows. Fourteen lactating Holstein cows (parity 2.6 ± 0.3; 117 ± 18 d in milk) were enrolled in 2 experimental periods. Period 1 (5 d) served as the baseline for period 2 (7 d), during which cows received 1 of 2 i.v. treatments twice per day: sterile saline or a gamma-secretase inhibitor (GSI; 1.5 mg/kg of body weight). Gamma-secretase inhibitors reduce intestinal barrier function by inhibiting crypt cell differentiation into absorptive enterocytes...
March 22, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28342014/serum-hepcidin-and-soluble-transferrin-receptor-in-the-assessment-of-iron-metabolism-in-children-on-a-vegetarian-diet
#11
Jadwiga Ambroszkiewicz, Witold Klemarczyk, Joanna Mazur, Joanna Gajewska, Grażyna Rowicka, Małgorzata Strucińska, Magdalena Chełchowska
The aim of this study was to assess the effect of vegetarian diet on iron metabolism parameters paying special attention to serum hepcidin and soluble transferrin receptor (sTfR) concentrations in 43 prepubertal children (age range 4.5-9.0 years) on vegetarian and in 46 children on omnivorous diets. There were no significant differences according to age, weight, height, and body mass index (BMI) between vegetarian and omnivorous children. Vegetarians had similar intake of iron and vitamin B12 and a significantly higher intake of vitamin C (p < 0...
March 24, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28341541/pro-resolving-actions-of-spm-in-adipose-tissue-biology
#12
REVIEW
Joan Clària, Cristina López-Vicario, Bibiana Rius, Esther Titos
White adipose tissue plays an important endocrine role in balancing metabolic homeostasis. During conditions of nutrient excess, as occurs in obesity, there is an expansion of adipose tissue mass that triggers a state of "low-grade" inflammation in this tissue. This chronic, unresolved inflammation of adipose tissue is deleterious and leads to many pathological sequelae associated with obesity including insulin resistance, type 2 diabetes and non-alcoholic fatty liver disease. Recently, a novel genus of anti-inflammatory and pro-resolving lipid mediators endogenously generated from membrane phospholipid-derived polyunsaturated fatty acids has been identified during the resolution phase of acute inflammation...
March 21, 2017: Molecular Aspects of Medicine
https://www.readbyqxmd.com/read/28341446/pkr-induces-the-expression-of-nlrp3-by-regulating-the-nf-%C3%AE%C2%BAb-pathway-in-porphyromonas-gingivalis-infected-osteoblasts
#13
Kaya Yoshida, Hirohiko Okamura, Yuka Hiroshima, Kaori Abe, Jun-Ichi Kido, Yasuo Shinohara, Kazumi Ozaki
The double-stranded RNA-dependent kinase (PKR), which is activated by double stranded RNA, induces inflammation by regulating NF-κB signaling. The NLR family pyrin domain-containing 3 (NLRP3) inflammasome also modulates inflammation in response to infection. Porphyromonas gingivalis (P.gingivalis) is an oral bacterium which is implicated in the pathogenesis of periodontal diseases. We previously reported that PKR is a key modulator of bone metabolism and inflammation in the periodontal tissue. PKR was also reported to induce inflammation in response to microbes by regulating the NLRP3 inflammasome, suggesting that PKR could affect inflammation along with NLRP3 in periodontal diseases...
March 22, 2017: Experimental Cell Research
https://www.readbyqxmd.com/read/28341121/activation-of-epha1-epha-receptor-axis-attenuates-diabetic-nephropathy-in-mice
#14
Yihui Li, Hongdan Yan, Feng Wang, Shanying Huang, Yun Zhang, Zhihao Wang, Ming Zhong, Wei Zhang
The Eph family of receptor tyrosine kinases serves as key modulators of various cellular functions, including inflammation, hypertrophy and fibrosis. Recent analyses have revealed that a member of the Eph family, EphA1, plays a pivotal role in regulating insulin metabolism and kidney injury. However, the importance of EphA1 in diabetic nephropathy has not been recognized. We established a diabetic nephropathy mouse model using a high-fat diet and streptozotocin (STZ) injection. Then, the recombinant adeno-associated virus type 9 (AAV9) overexpressing EphA1 or a negative control was injected locally into the kidney...
March 21, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28340865/association-of-systemic-inflammation-adiposity-and-metabolic-dysregulation-with-asthma-burden-among-hispanic-adults
#15
Deepa Rastogi, Molly Jung, Garrett Strizich, Pamela A Shaw, Sonia M Davis, Oana L Klein, Frank J Penedo, Andrew L Ries, Martha L Daviglus, Juan J Moreiras, Matthias A Salathe, Juan C Celedón, Carmen R Isasi, Robert C Kaplan
RATIONALE: Obesity-related asthma is associated with higher disease burden than normal-weight asthma among Hispanics. Adiposity, metabolic dysregulation, and inflammation are all implicated in pathogenesis of obesity-related asthma, but their independent contributions are poorly understood. OBJECTIVE: To examine the independent contributions of body fat distribution, metabolic abnormalities and inflammation on asthma symptoms and pulmonary function among Hispanics...
April 2017: Respiratory Medicine
https://www.readbyqxmd.com/read/28340361/hdl-inhibits-saturated-fatty-acid-mediated-augmentation-of-innate-immune-responses-in-endothelial-cells-by-a-novel-pathway
#16
Wei-Yang Zhang, Daniel A Franco, Eric Schwartz, Karen D'Souza, Sheetal Karnick, Peter D Reaven
BACKGROUND AND AIMS: Peripheral insulin resistance is associated with several metabolic abnormalities, including elevated serum fatty acids that contribute to vascular injury and atherogenesis. Our goals were to examine whether saturated fatty acids can modify innate immune responses to subclinical concentrations of lipopolysaccharide (LPS) in endothelial cells, and to explore the underlying pathway and determine whether it is modified by high density lipoprotein (HDL) and other factors commonly altered in insulin resistance...
September 8, 2016: Atherosclerosis
https://www.readbyqxmd.com/read/28339984/the-link-between-phenotype-and-fatty-acid-metabolism-in-advanced-chronic-kidney-disease
#17
Dan-Qian Chen, Hua Chen, Lin Chen, Nosratola D Vaziri, Ming Wang, Xiang-Ri Li, Ying-Yong Zhao
Background.: The kidney plays a central role in elimination of metabolic waste products and regulation of low-molecular weight metabolites via glomerular filtration, tubular secretion and reabsorption. Disruption of these processes results in profound changes in the biochemical milieu of the body fluids, which contribute to complications of chronic kidney disease (CKD) by inducing cytotoxicity and inflammation. Insight into the changes of the composition of metabolites and dysregulation of target genes and proteins enhances the understanding of the pathophysiology of CKD and its complications, and the development of novel therapeutic strategies...
March 1, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/28339731/obesity-associated-cardiac-pathogenesis-in-broiler-breeder-hens-development-of-metabolic-cardiomyopathy2-3
#18
C Y Chen, Y F Huang, Y J Ko, Y J Liu, Y H Chen, R L Walzem, S E Chen
Feed intake is typically restricted (R) in broiler hens to avoid obesity and improve egg production and livability. To determine whether improved heart health contributes to improved livability, fully adult 45-week-old R hens were allowed to consume feed to appetite (ad libitum; AL) up to 10 wk (70 d). Mortality, contractile functions, and morphology at 70 d, and measurements of cardiac hypertrophic remodeling at 7 d and 21 d were made and compared between R and AL hens. Outcomes for cardiac electrophysiology and mortality, reported separately, found increased mortality in AL hens in association with cardiac pathological hypertrophy and contractile dysfunction...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28338639/beyond-the-cholesterol-lowering-effect-of-soy-protein-a-review-of-the-effects-of-dietary-soy-and-its-constituents-on-risk-factors-for-cardiovascular-disease
#19
REVIEW
D Dan Ramdath, Emily M T Padhi, Sidra Sarfaraz, Simone Renwick, Alison M Duncan
The hypocholesterolemic effect of soy is well-documented and this has led to the regulatory approval of a health claim relating soy protein to a reduced risk of cardiovascular disease (CVD). However, soybeans contain additional components, such as isoflavones, lecithins, saponins and fiber that may improve cardiovascular health through independent mechanisms. This review summarizes the evidence on the cardiovascular benefits of non-protein soy components in relation to known CVD risk factors such as hypertension, hyperglycemia, inflammation, and obesity beyond cholesterol lowering...
March 24, 2017: Nutrients
https://www.readbyqxmd.com/read/28337029/the-impact-of-protein-quantity-during-energy-restriction-on-genome-wide-gene-expression-analysis-in-adipose-tissue-of-obese-humans
#20
I P G Van Bussel, E M P Backx, C P G M De Groot, M Tieland, M Müller, L A Afman
BACKGROUND: Overweight and obesity is a growing health problem worldwide. The most effective strategy to reduce weight is energy restriction (ER). ER has been shown to be beneficial in disease prevention and it reduces chronic inflammation. Recent studies suggest that reducing the protein quantity of a diet contributes to the beneficial effects by ER. The organ most extensively affected during ER is white adipose tissue (WAT). OBJECTIVE: The first objective was to assess changes in gene expression between a high protein diet and a normal protein diet during ER...
March 24, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
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