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Inflammation metabolism

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https://www.readbyqxmd.com/read/28655161/dysfunction-of-pla2g6-and-cyp2c44-associated-network-signals-imminent-carcinogenesis-from-chronic-inflammation-to-hepatocellular-carcinoma
#1
Meiyi Li, Chen Li, Wei-Xin Liu, Conghui Liu, Jingru Cui, Qingrun Li, Hong Ni, Yingcheng Yang, Chaochao Wu, Chunlei Chen, Xing Zhen, Tao Zeng, Mujun Zhao, Lei Chen, Jiarui Wu, Rong Zeng, Luonan Chen
Little is known about how chronic inflammation contributes to the progression of hepatocellular carcinoma (HCC), especially the initiation of cancer. To uncover the critical transition from chronic inflammation to HCC and the molecular mechanisms at a network level, we analyzed the time-series proteomic data of woodchuck hepatitis virus/c-myc mice and age-matched wt-C57BL/6 mice using our dynamical network biomarker (DNB) model. DNB analysis indicated that the 5th month after birth of transgenic mice was the critical period of cancer initiation, just before the critical transition, which is consistent with clinical symptoms...
June 26, 2017: Journal of Molecular Cell Biology
https://www.readbyqxmd.com/read/28654509/pi3ks-in-diabetic-cardiomyopathy
#2
Mingchuan Li, Alessandra Murabito, Alessandra Ghigo, Emilio Hirsch
Diabetic cardiomyopathy is a heart disease in diabetic patients, identified as ventricular dysfunction in the absence of coronary artery disease and hypertension. The molecular mechanisms underlying diabetic cardiomyopathy are still poorly understood. The protein and lipid kinase phosphoinositide 3-kinases (PI3Ks) have been suggested to regulate cardiac injury during diabetes. In this review, we will summarize the role of different PI3K isoforms and of their downstream signaling in the pathogenesis of diabetic cardiomyopathy, including the regulation of cardiac metabolism, contractility, hypertrophy, myocardial cell death and inflammation...
June 22, 2017: Journal of Cardiovascular Pharmacology
https://www.readbyqxmd.com/read/28654149/young-adult-survivors-of-childhood-acute-lymphoblastic-leukemia-show-evidence-of-chronic-inflammation-and-cellular-aging
#3
Hany Ariffin, Mohamad Shafiq Azanan, Sayyidatul Syahirah Abd Ghafar, Lixian Oh, Kee Hie Lau, Tharshanadhevasheri Thirunavakarasu, Atiqah Sedan, Kamariah Ibrahim, Adelyne Chan, Tong Foh Chin, Fong Fong Liew, Shareni Jeyamogan, Erda Syerena Rosli, Rashidah Baharudin, Tsiao Yi Yap, Roderick Skinner, Su Han Lum, Pierre Hainaut
BACKGROUND: Large epidemiologic studies have reported the premature onset of age-related conditions, such as ischemic heart disease and diabetes mellitus, in childhood cancer survivors, decades earlier than in their peers. The authors investigated whether young adult survivors of childhood acute lymphoblastic leukemia (ALL) have a biologic phenotype of cellular ageing and chronic inflammation. METHODS: Plasma inflammatory cytokines were measured using a cytometric bead array in 87 asymptomatic young adult survivors of childhood ALL (median age, 25 years; age range, 18-35 years) who attended annual follow-up clinic and compared with healthy, age-matched and sex-matched controls...
June 27, 2017: Cancer
https://www.readbyqxmd.com/read/28653675/periprostatic-adipose-inflammation-is-associated-with-high-grade-prostate-cancer
#4
A Gucalp, N M Iyengar, X K Zhou, D D Giri, D J Falcone, H Wang, S Williams, M D Krasne, I Yaghnam, B Kunzel, P G Morris, L W Jones, M Pollak, V P Laudone, C A Hudis, H I Scher, P T Scardino, J A Eastham, A J Dannenberg
BACKGROUND: Obesity, a cause of subclinical inflammation, is associated with increased risk of high-grade prostate cancer (PC) and poor outcomes. Whether inflammation occurs in periprostatic white adipose tissue (WAT), and contributes to the negative impact of obesity on PC aggressiveness, is unknown. METHODS: In a single-center, cross-sectional design, men with newly diagnosed PC undergoing radical prostatectomy were eligible for study participation. The primary objective was to examine the prevalence of periprostatic WAT inflammation defined by the presence of crown-like structures (CLS-P) as detected by CD68 immunohistochemistry...
June 27, 2017: Prostate Cancer and Prostatic Diseases
https://www.readbyqxmd.com/read/28653652/obesity-and-age-related-alterations-in-fat-cd36-translocation-and-lipin-1-subcellular-localization-in-skeletal-muscle-of-the-zucker-rats
#5
Snjezana Romic, Katarina Krskova, Rafal Olszanecki, Lucia Balazova, Viktoria Lory, Goran Koricanac, Miroslava Slamkova, Stefan Zorad
Fatty acid (FA) uptake and/or intramuscular triglyceride (TG) accumulation in skeletal muscle are increased in obesity, type 2 diabetes and aging. FA translocase (FAT/CD36) translocation, lipin-1 subcellular localization and nuclear factor κB (NF-κB) p65 protein content in quadriceps muscle of young and old obese Zucker fa/fa rats and their lean controls were analyzed by immunoblot to define obesity- and aging-related alterations in FA uptake, their subsequent metabolic fate and potential to activate pro-inflammatory signaling...
June 27, 2017: General Physiology and Biophysics
https://www.readbyqxmd.com/read/28653198/a-combined-nmr-and-hplc-ms-ms-based-metabolomics-to-evaluate-the-metabolic-perturbations-and-subacute-toxic-effects-of-endosulfan-on-mice
#6
Ping Zhang, Wentao Zhu, Dezhen Wang, Jin Yan, Yao Wang, Zhiqiang Zhou, Lin He
Endosulfan is the newly persistent organic pollutants (POPs) added to the Stockholm Convention as its widespread use, persistence, bioaccumulation, long-range transport, endocrine disruption, and toxicity related to various adverse effects. In the present study, male mice were administrated endosulfan at 0, 0.5, and 3.5 mg/kg by gavage for 2 weeks. (1)H-NMR-based urinary metabolomics, HPLC-MS/MS-based targeted serum metabolomics, clinical analysis, and histopathology techniques were employed to evaluate the metabolic perturbations of subacute endosulfan exposure...
June 26, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28652219/the-fate-of-the-brain-cholinergic-neurons-in-neurodegenerative-diseases
#7
REVIEW
Giancarlo Pepeu, Maria Grazia Giovannini
The aims of this review are: 1) to describe which cholinergic neurons are affected in brain neurodegenerative diseases leading to dementia; 2) to discuss the possible causes of the degeneration of the cholinergic neurons, 3) to summarize the functional consequences of the cholinergic deficit. The brain cholinergic system is basically constituted by three populations of phenotypically similar neurons forming a series of basal forebrain nuclei, the midpontine nuclei and a large population of striatal interneurons...
June 23, 2017: Brain Research
https://www.readbyqxmd.com/read/28652200/down-regulation-of-mirnas-in-the-brain-and-development-of-diet-induced-obesity
#8
Jaime G Maldonado-Avilés, Douglas J Guarnieri, Xianglong Zhu, Ralph J DiLeone
Novel therapeutic interventions for obesity and comorbid conditions require knowledge of the molecular elements playing a role in the development of obesity. Chronic low-grade inflammation has been consistently reported in obese individuals. In this study, we first determined whether key molecular modulators of inflammation, microRNA-155 (mir-155) and microRNA-146a (miR-146a), are regulated by an obesogenic diet within brain regions associated with reward, metabolism and energy balance. C57BL/6J mice were chronically exposed to a high fat diet (HFD) or a standard chow (CTL)...
June 23, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28651456/phytochemical-treatments-target-kynurenine-pathway-induced-oxidative-stress
#9
K Parasram
OBJECTIVE: The objective of this paper was to link the phytochemical and metabolic research treating quinolinic acid induced oxidative stress in neurodegenerative disorders. METHODS: Quinolinic acid, a metabolite of the kynurenine pathway of tryptophan catabolism, plays a role in the oxidative stress associated with many neurological disorders and is used to simulate disorders such as Parkinson's disease. RESULTS: In these models, phytochemicals have been shown to reduce striatal lesion size, reduce inflammation and prevent lipid peroxidation caused by quinolinic acid...
June 26, 2017: Redox Report: Communications in Free Radical Research
https://www.readbyqxmd.com/read/28651353/protein-tyrosine-phosphatase-1b-mediates-sleep-fragmentation-induced-insulin-resistance-and-visceral-adipose-tissue-inflammation-in-mice
#10
David Gozal, Abdelnaby Khalyfa, Zhuanghong Qiao, Mahzad Akbarpour, Rosanna Maccari, Rosaria Ottanà
Study Objectives: Sleep fragmentation (SF) is highly prevalent and has emerged as an important contributing factor to obesity and metabolic syndrome. We hypothesized that SF-induced increases in protein tyrosine phosphatase-1B (PTP-1B) expression and activity underlie increased food intake, inflammation, and leptin and insulin resistance. Methods: Wild type (WT) and ObR-PTP-1b-/- mice (Tg) were exposed to SF and control sleep (SC), and food intake was monitored...
June 23, 2017: Sleep
https://www.readbyqxmd.com/read/28651194/reference-intervals-for-hematological-and-biochemical-parameters-acute-phase-proteins-and-markers-of-oxidation-in-holstein-dairy-cows-around-3-and-30days-after-calving
#11
Pierangelo Moretti, Saverio Paltrinieri, Erminio Trevisi, Monica Probo, Annarita Ferrari, Andrea Minuti, Alessia Giordano
The establishment of specific reference intervals (RIs) is advisable when different metabolic conditions in the patient population are present or when existing RIs are not suitable. Holstein dairy cows, at the start of lactation, experience a negative energy balance and an altered immune function that can lead to different levels of blood parameters compared with cows at peak lactation. The aim of this study was the determination of RIs for Holstein cows at 3±1 and 30±3days in milk. To this aim, 145 cows, from 4 herds, were sampled...
June 20, 2017: Research in Veterinary Science
https://www.readbyqxmd.com/read/28650104/alzheimer-s-disease-and-metabolic-syndrome-a-link-from-oxidative-stress-and-inflammation-to-neurodegeneration
#12
REVIEW
Eduardo Rojas-Gutierrez, Guadalupe Muñoz-Arenas, Samuel Treviño, Blanca Espinosa, Raúl Chavez, Karla Rojas, Gonzalo Flores, Alfonso Díaz, Jorge Guevara
Alzheimer's disease (AD) is the most common cause of dementia and one of the most important causes of morbidity and mortality among the aging population. AD diagnosis is made post-mortem, and the two pathologic hallmarks, particularly evident in the end stages of the illness, are amyloid plaques and neurofibrillary tangles (NFT). Currently, there is no curative treatment for AD. Additionally, there is a strong relation between oxidative stress, metabolic syndrome (MetS) and AD. The high levels of circulating lipids and glucose imbalances amplify lipid peroxidation that gradually diminishes the antioxidant systems, causing high levels of oxidative metabolism that affects cell structure, leading to neuronal damage...
June 26, 2017: Synapse
https://www.readbyqxmd.com/read/28649626/investigation-of-simulated-microgravity-effects-on-streptococcus-mutans-physiology-and-global-gene-expression
#13
Silvia S Orsini, April M Lewis, Kelly C Rice
Astronauts have been previously shown to exhibit decreased salivary lysozyme and increased dental calculus and gingival inflammation in response to space flight, host factors that could contribute to oral diseases such as caries and periodontitis. However, the specific physiological response of caries-causing bacteria such as Streptococcus mutans to space flight and/or ground-based simulated microgravity has not been extensively investigated. In this study, high aspect ratio vessel S. mutans simulated microgravity and normal gravity cultures were assessed for changes in metabolite and transcriptome profiles, H2O2 resistance, and competence in sucrose-containing biofilm media...
2017: NPJ Microgravity
https://www.readbyqxmd.com/read/28649594/specific-macronutrients-exert-unique-influences-on-the-adipose-liver-axis-to-promote-hepatic-steatosis-in-mice
#14
Caroline C Duwaerts, Amin M Amin, Kevin Siao, Chris Her, Mark Fitch, Carine Beysen, Scott M Turner, Amanda Goodsell, Jody L Baron, James P Grenert, Soo-Jin Cho, Jacquelyn J Maher
BACKGROUND & AIMS: The factors that distinguish metabolically healthy obesity from metabolically unhealthy obesity are not well understood. Diet has been implicated as a determinant of the unhealthy obesity phenotype, but which aspects of the diet induce dysmetabolism are unknown. The goal of this study was to investigate whether specific macronutrients or macronutrient combinations provoke dysmetabolism in the context of isocaloric, high-energy diets. METHODS: Mice were fed 4 high-energy diets identical in calorie and nutrient content but different in nutrient composition for 3 weeks to 6 months...
September 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28649593/colonic-microbiota-encroachment-correlates-with-dysglycemia-in-humans
#15
Benoit Chassaing, Shreya M Raja, James D Lewis, Shanthi Srinivasan, Andrew T Gewirtz
BACKGROUND AND AIMS: Mucoid structures that coat the epithelium play an essential role in keeping the intestinal microbiota at a safe distance from host cells. Encroachment of bacteria into the normally almost-sterile inner mucus layer has been observed in inflammatory bowel disease and in mouse models of colitis. Moreover, such microbiota encroachment has also been observed in mouse models of metabolic syndrome, which are associated low-grade intestinal inflammation. Hence, we investigated if microbiota encroachment might correlate with indices of metabolic syndrome in humans...
September 2017: Cellular and Molecular Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28649243/distinct-blood-and-visceral-adipose-tissue-regulatory-t-cell-and-innate-lymphocyte-profiles-characterize-obesity-and-colorectal-cancer
#16
Gloria Donninelli, Manuela Del Cornò, Marina Pierdominici, Beatrice Scazzocchio, Rosaria Varì, Barbara Varano, Ilenia Pacella, Silvia Piconese, Vincenzo Barnaba, Massimo D'Archivio, Roberta Masella, Lucia Conti, Sandra Gessani
Visceral adipose tissue (VAT) is a main site where metabolic and immunologic processes interplay to regulate, at local and systemic level, the inflammatory status and immune response. Obesity-associated inflammation and immune dysfunctions are inextricably linked to tumor but, in spite of intense efforts, the mechanisms underpinning this association remain elusive. In this report, we characterized the profile of VAT-associated and circulating innate lymphocyte and regulatory T (Treg) cell subsets underlying inflammatory conditions, such as obesity and colorectal cancer (CRC)...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28648831/glucagon-like-peptide-1-a-potential-anti-inflammatory-pathway-in-obesity-related-asthma
#17
REVIEW
Dan-Vinh Nguyen, Angela Linderholm, Angela Haczku, Nicholas Kenyon
Alterations in arginine metabolism and accelerated formation of advanced glycation end-products (AGEs), crucial mechanisms in obesity-related asthma, can be modulated by glucagon-like peptide 1 (GLP-1). L-arginine dysregulation in obesity promotes inflammation and bronchoconstriction. Prolonged hyperglycemia, dyslipidemia, and oxidative stress leads to production of AGEs, that bind to their receptor (RAGE) further potentiating inflammation. By binding to its widely distributed receptor, GLP-1 blunts the effects of RAGE activation and arginine dysregulation...
June 22, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28648366/-oxidative-stress-in-perinatal-asphyxia-and-hypoxic-ischaemic-encephalopathy
#18
Antonio Nuñez, Isabel Benavente, Dorotea Blanco, Héctor Boix, Fernando Cabañas, Mercedes Chaffanel, Belén Fernández-Colomer, José Ramón Fernández-Lorenzo, Begoña Loureiro, María Teresa Moral, Antonio Pavón, Inés Tofé, Eva Valverde, Máximo Vento
Birth asphyxia is one of the principal causes of early neonatal death. In survivors it may evolve to hypoxic-ischaemic encephalopathy and major long-term neurological morbidity. Prolonged and intense asphyxia will lead to energy exhaustion in tissues exclusively dependent on aerobic metabolism, such as the central nervous system. Energy deficit leads to ATP-dependent pumps blockage, with the subsequent loss of neuronal transmembrane potential. The most sensitive areas of the brain will die due to necrosis. In more resistant areas, neuronal hyper-excitability, massive entrance of ionic calcium, activation of NO-synthase, free radical generation, and alteration in mitochondrial metabolism will lead to a secondary energy failure and programmed neuronal death by means of the activation of the caspase pathways...
June 22, 2017: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
https://www.readbyqxmd.com/read/28647324/ampk-as-a-therapeutic-target-for-treating-metabolic-diseases
#19
REVIEW
Emily A Day, Rebecca J Ford, Gregory R Steinberg
The AMP-activated protein kinase (AMPK) is a central regulator of multiple metabolic pathways and may have therapeutic importance for treating obesity, insulin resistance, type 2 diabetes (T2D), non-alcoholic fatty liver disease (NAFLD), and cardiovascular disease (CVD). Given the ubiquitous expression of AMPK, it has been a challenge to evaluate which tissue types may be most beneficially poised for mediating the positive metabolic effects of AMPK-centered treatments. In this review we evaluate the metabolic phenotypes of transgenic mouse models in which AMPK expression and function have been manipulated, and the impact this has on controlling lipid metabolism, glucose homeostasis, and inflammation...
June 21, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/28646814/nutritional-management-of-metabolic-endotoxemia-a-clinical-review
#20
Benjamin I Brown
Context • Diet-induced, metabolic endotoxemia is emerging as an important contributory factor to the development of a wide range of chronic diseases, including cardiometabolic, autoimmune, psychiatric, and neurodegenerative illnesses. Emerging human clinical studies have demonstrated that diet and dietary components are potent modifiers of circulating endotoxins and can be used to reduce plasma levels significantly and improve metabolic health. Objective • The aim of the current study was to explore briefly the concept of metabolic endotoxemia and its relationship to disease development, to examine the influence of diet and dietary components on circulating endotoxins, and, finally, discuss the clinical relevance of nutritional interventions for management of metabolic endotoxemia...
July 2017: Alternative Therapies in Health and Medicine
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