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https://www.readbyqxmd.com/read/28077341/irisin-and-oxytocin-as-predictors-of-metabolic-parameters-in-obese-children
#1
Ciğdem Binay, Cem Paketçi, Savaş Güzel, Nedim Samancı
OBJECTIVE: Irisin and oxytocin can affect energy homeostasis and have been proposed to play an important role in reducing obesity and diabetes. We aimed to determine the relationship between metabolic parameters (including irisin and oxytocin levels) and anthropometric parameters in obese children. METHODS: Ninety obese children (mean age, 13.85 ± 1.63 years) and 30 healthy controls (mean age, 14.32 ± 1.58 years) were enrolled in this study. Anthropometric and laboratory parameters (glucose, insulin, lipid, oxytocin, and irisin levels) were analysed...
January 12, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/28028076/inorganic-nitrate-mimics-exercise-stimulated-muscular-fiber-type-switching-and-myokine-and-gaba-release
#2
Lee D Roberts, Tom Ashmore, Ben D McNally, Steven A Murfitt, Bernadette O Fernandez, Martin Feelisch, Ross Lindsay, Mario Siervo, Elizabeth A Williams, Andrew J Murray, Julian L Griffin
Exercise is an effective intervention for prevention and treatment of type 2 diabetes. Skeletal muscle combines multiple signals contributing to the beneficial effects of exercise on cardiometabolic health. Inorganic nitrate increases exercise efficiency, tolerance and performance. The transcriptional regulator peroxisome proliferator-activated receptorγ coactivator1α (PGC1α) coordinates the exercise-stimulated skeletal muscle fiber-type switch from glycolytic fast-twitch (type IIb) to oxidative slow-twitch (type I) and intermediate (type IIa) fibers; an effect reversed in insulin resistance and diabetes...
December 27, 2016: Diabetes
https://www.readbyqxmd.com/read/28024128/-pathogenesis-diagnosis-and-treatment-of-chronic-obstructive-pulmonary-disease-in-the-light-of-new-research
#3
EDITORIAL
Tadeusz Płusa
Accurate number of patients with chronic obtructive pulmonary disease (COPD) is difficult to determine, both in Poland and in the world. Quoted estimates and fragmented with the research indicate that approx. 10% of the world's population may be burdened by this disease. As it turns out, COPD is recognized in 25-45% in non-smokers, suggesting a genetic link. This is confirmed by new data that indicates that further embodiments having genetic polymorphisms associated with the occurrence of the disease. It was further found that the allele GC-1F vitamin D were risk factor for development of COPD...
December 22, 2016: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28012856/increased-fndc5-irisin-expression-in-human-hepatocellular-carcinoma
#4
Melania Gaggini, Manuela Cabiati, Serena Del Turco, Teresa Navarra, Paolo De Simone, Franco Filipponi, Silvia Del Ry, Amalia Gastaldelli, Giuseppina Basta
The fibronectin type III domain containing 5 (FNDC5)/Irisin, a novel energy-regulating hormone, is associated with lipid and carbohydrate metabolism. It is produced in low amounts by normal hepatic tissue, while in human hepatocellular carcinoma (HCC), in which aberrant de novo lipogenesis (DNL) occurs, the hepatic expression of FNDC5/Irisin is still unknown. The gene expression of FNDC5/Irisin, associated to key regulators of DNL, inflammation and cancer progression was evaluated in liver tissue of 18 patients with HCC undergoing liver transplantation and of 18 deceased donors...
December 21, 2016: Peptides
https://www.readbyqxmd.com/read/27993842/exercise-induced-biochemical-changes-and-their-potential-influence-on-cancer-a-scientific-review
#5
Robert James Thomas, Stacey A Kenfield, Alfonso Jimenez
AIM: To review and discuss the available international literature regarding the indirect and direct biochemical mechanisms that occur after exercise, which could positively, or negatively, influence oncogenic pathways. METHODS: The PubMed, MEDLINE, Embase and Cochrane libraries were searched for papers up to July 2016 addressing biochemical changes after exercise with a particular reference to cancer. The three authors independently assessed their appropriateness for inclusion in this review based on their scientific quality and relevance...
December 19, 2016: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27986567/irisin-suppresses-the-migration-proliferation-and-invasion-of-lung-cancer-cells-via-inhibition-of-epithelial-to-mesenchymal-transition
#6
Lei Shao, Huanjie Li, Jian Chen, Haibo Song, Yuzhu Zhang, Fei Wu, Wenjuan Wang, Wen Zhang, Fang Wang, Hui Li, Dongqi Tang
Irisin is involved in promoting metabolism, immune regulation, and affects chronic inflammation in many systemic diseases, including gastric cancer. However, the role of irisin in lung cancer is not well characterized. To determine whether irisin has a protective effect against lung cancer, we cultured A549 and NCI-H446 lung cancer cells and treated them with irisin. We detected the proliferation by MTT assay, and assessed the migration and invasion of the cells by scratch wound healing assay and Tran-swell assay...
December 13, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27986127/irisin-and-myostatin-levels-in-patients-with-graves-disease
#7
Mehmet Muhittin Yalcin, Mujde Akturk, Yusuf Tohma, Ethem Turgay Cerit, Alev Eroglu Altinova, Emre Arslan, Ilhan Yetkin, Fusun Balos Toruner
BACKGROUND AND AIMS: Skeletal muscle system, which is one of the primary targets for thyroid hormones, has an important role in energy metabolism. Some myokines such as irisin and myostatin have considerable effects on energy metabolism in addition to the musculoskeletal system. Our aim was to investigate circulating irisin and myostatin levels in patients with Graves' Disease (GD). METHODS: This study included 41 patients with GD who were in overt hyperthyroid status and 44 healthy subjects...
August 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/27933703/effects-of-cpap-therapy-on-visceral-fat-thickness-carotid-intima-media-thickness-and-adipokines-in-patients-with-obstructive-sleep-apnoea
#8
Susanna S S Ng, Eric K H Liu, Ronald C W Ma, Tat-On Chan, Kin-Wang To, Ken K P Chan, Jenny Ngai, Wing-Ho Yip, Fanny W S Ko, Chun-Kwok Wong, David S C Hui
BACKGROUND AND OBJECTIVE: Obstructive sleep apnoea (OSA) is associated with an increased prevalence of metabolic syndrome. This study explores the effects of continuous positive airway pressure (CPAP) for patients with OSA on visceral and mesenteric fat thickness, carotid intima-media thickness (IMT) and adipokines. METHODS: A randomized controlled study was conducted at a teaching hospital on 90 patients newly diagnosed with OSA to receive either therapeutic CPAP or subtherapeutic CPAP for 3 months...
December 9, 2016: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27926952/growth-hormone-treatment-increases-plasma-irisin-concentration-in-patients-with-turner-syndrome
#9
B Wikiera, K Zawadzka, Ł Łaczmański, N Słoka, M Bolanowski, A Basiak, A Noczyńska, J Daroszewski
Irisin (Ir) deficiency may be a contributing factor in metabolic disease. This study aimed to investigate the effect of supraphysiological doses of recombinant human growth hormone (rhGH) on Ir plasma concentration in relation to metabolic disorders, including obesity and other components of metabolic syndrome. We studied 36 girls with Turner syndrome (mean age 8.2 years) treated with rhGH (0.05 mg/kg/day). Anthropometric data and fasting blood levels [e. g., Ir, insulin, glucose, glycated hemoglobin (HbA1c), IGF-1, IGFBP-3, cholesterol, insulin resistance (HOMA-IR), and β-cell function (HOMA-β)] were analyzed prior to and following rhGH therapy [mean (SD) follow-up of 1...
December 7, 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/27912206/irisin-lowers-blood-pressure-by-improvement-of-endothelial-dysfunction-via-ampk-akt-enos-no-pathway-in-the-spontaneously-hypertensive-rat
#10
Jinjuan Fu, Yu Han, Jialiang Wang, Yukai Liu, Shuo Zheng, Lin Zhou, Pedro A Jose, Chunyu Zeng
BACKGROUND: Exercise is a major nonpharmacological treatment for hypertension, but its underlying mechanisms are still not completely elucidated. Irisin, a polypeptide containing 112 amino acids, which is secreted mainly by skeletal muscle cells during exercise, exerts a protective role in metabolic diseases, such as diabetes mellitus and obesity. Because of the close relationship between irisin and metabolic diseases, we hypothesized that irisin may play a role in the regulation of blood pressure...
October 26, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27908782/adaptive-responses-of-neuronal-mitochondria-to-bioenergetic-challenges-roles-in-neuroplasticity-and-disease-resistance
#11
REVIEW
Sophia M Raefsky, Mark P Mattson
An important concept in neurobiology is "neurons that fire together, wire together" which means that the formation and maintenance of synapses is promoted by activation of those synapses. Very similar to the effects of the stress of exercise on muscle cells, emerging findings suggest that neurons respond to activity by activating signaling pathways (e.g., Ca(2+), CREB, PGC-1α, NF-κB) that stimulate mitochondrial biogenesis and cellular stress resistance. These pathways are also activated by aerobic exercise and food deprivation, two bioenergetic challenges of fundamental importance in the evolution of the brains of all mammals, including humans...
January 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/27875543/irisin-ameliorates-hypoxia-reoxygenation-induced-injury-through-modulation-of-histone-deacetylase-4
#12
Yu Tina Zhao, Hao Wang, Shouyan Zhang, Jianfeng Du, Shougang Zhuang, Ting C Zhao
Irisin is a recently identified myokine which brings increases in energy expenditure and contributes to the beneficial effects of exercise through the browning of white adipose tissues. However, its effects in the heart remains unknown. This study sought to determine the effects of irisin on hypoxia/reoxygenation injury and its relationship with HDAC4. Wild type and stable HDAC4-overexpression cells were generated from H9c2 cardiomyoblasts. HDAC4 overexpression cells and wild type H9c2 cells were exposed to 24 hours of hypoxia followed by one hour of reoxygenation in vitro in the presence or absence of irisin (5 ng/ml)...
2016: PloS One
https://www.readbyqxmd.com/read/27830278/molecular-communication-from-skeletal-muscle-to-bone-a-review-for-muscle-derived-myokines-regulating-bone-metabolism
#13
REVIEW
Baosheng Guo, Zong-Kang Zhang, Chao Liang, Jie Li, Jin Liu, Aiping Lu, Bao-Ting Zhang, Ge Zhang
Besides the mechanical loading-dependent paradigm, skeletal muscle also serves as an endocrine organ capable of secreting cytokines to modulate bone metabolism. In this review, we focused on reviewing the myokines involved in communication from skeletal muscle to bone, i.e. (1) myostatin and myostatin-binding proteins including follistatin and decorin, (2) interleukins including interleukin-6 (IL-6), interleukin-7 (IL-7) and interleukin-15 (IL-15), (3) insulin-like growth factor 1 (IGF-1) and its binding proteins, (4) other myokines including PGC-1α-irisin system and osteoglycin (OGN)...
November 9, 2016: Calcified Tissue International
https://www.readbyqxmd.com/read/27828992/relationship-between-irisin-concentration-and-serum-cytokines-in-mother-and-newborn
#14
Maria Hernandez-Trejo, Gerardo Garcia-Rivas, Alejandro Torres-Quintanilla, Estibalitz Laresgoiti-Servitje
INTRODUCTION: Irisin is considered to be a myokine and adipokine that may also participate in reproductive functions, as it increases significantly throughout pregnancy. However, the regulation of circulating irisin and its relationship with other cytokines has not been assessed thus far in pregnant women and their offspring. OBJECTIVE: The aim of this study was to evaluate differences in irisin and cytokine concentrations between women at the end of pregnancy and their offspring, as well as the relationship between maternal and newborn irisin and maternal and newborn biomarkers...
2016: PloS One
https://www.readbyqxmd.com/read/27815563/association-of-serum-irisin-concentrations-with-presence-and-severity-of-coronary-artery-disease
#15
Wen Deng
BACKGROUND Irisin, an exercise-induced myokine, is closely correlated with obesity and body mass index. Obesity is one risk factor of coronary artery disease (CAD). Therefore, the present study aimed to determine if serum irisin concentrations are correlated with the presence and severity of CAD. MATERIAL AND METHODS Serum irisin concentrations were determined in 350 patients with CAD and in 214 healthy subjects. The severity of CAD was assessed by coronary atherosclerosis index (CAI). RESULTS Serum irisin concentrations were significantly lower in CAD patients compared with healthy controls...
November 5, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27814392/gender-specific-mechanisms-underlying-the-amelioration-of-high-fat-diet-induced-glucose-intolerance-in-b-cell-activating-factor-deficient-mice
#16
Bobae Kim, Chang-Kee Hyun
It has recently been found that B cell activating factor (BAFF) plays an important role in the regulation of energy homeostasis. We also have previously reported that BAFF deficiency reverses high-fat (HF) diet-induced glucose intolerance by potentiating adipose tissue function. In the present study, we found that BAFF deficient (BAFF-/-) mice exhibit gender-specific differences in protection against diet-induced glucose intolerance, and aimed to characterize the gender-dependent molecular alterations in energy metabolism...
2016: PloS One
https://www.readbyqxmd.com/read/27809453/long-term-study-of-the-association-of-adipokines-and-glucose-variability-with-diabetic-complications
#17
Jin Joo Cha, Hye Sook Min, Kitae Kim, Mi Jin Lee, Mi Hwa Lee, Jung Eun Kim, Hye Kyoung Song, Dae Ryong Cha, Young Sun Kang
Background/Aims: Recent studies have suggested an important role of adipokines in the development of insulin resistance and diabetes mellitus. The clinical relevance of adipokines on long-term outcomes in patients with diabetes and chronic kidney disease is uncertain. The purpose of this study was to identify a predictable factor in patients with long-term diabetic complications. Methods: A total of 161 diabetic individuals were followed-up from 2002 to 2013. Circulating plasma levels of adiponectin, glypican-4, irisin, visfatin, and visit-to-visit glucose variability were measured in diabetic patients...
November 4, 2016: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/27795900/evaluation-of-cord-blood-irisin-levels-in-term-newborns-with-small-gestational-age-and-appropriate-gestational-age
#18
Esengul Keleş, Filiz Fatime Turan
BACKGROUND: Most recently, a novel myokine, named irisin, was identified in human that expressed by skeletal muscle after exercise. Irisin increases energy expenditure by turning white adipose tissue into brown adipose tissue. Thus improves carbohydrate homeostasis in humans. Irisin is considered as a potential biomarker for obesity and metabolic syndrome. In recent years, numerous studies have been conducted about irisin with adults, although number of studies with newborns is limited...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27786588/serum-irisin-levels-in-patients-with-psoriasis
#19
A Baran, H Myśliwiec, P Kiluk, M Świderska, I Flisiak
BACKGROUND: Irisin has been proposed to regulate metabolic diseases such as obesity, diabetes or metabolic syndrome which are common comorbidities in psoriasis. OBJECTIVES: The aim of this study was to evaluate the serum irisin level in psoriasis and elucidate possible associations with disease activity, inflammatory or metabolic parameters and topical treatment. METHODS: Thirty-seven individuals with active plaque-type psoriasis and 15 healthy controls were enrolled...
October 27, 2016: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/27775791/association-between-irisin-and-major-chronic-diseases-a-review
#20
M C Gouveia, J P Vella, F R Cafeo, F L Affonso Fonseca, M R Bacci
OBJECTIVE: Irisin is a muscle-secreted protein released into the circulation by cleavage of fibronectin type III domain containing protein 5(FNDC5). Since its discovery in 2012, it has been the subject of many researches due to its physiological role. It is believed that understanding irisin's function may be the key to comprehend many diseases and their development. The aim of this study is to perform a systematic review in order to establish whether there is an association of irisin's levels with obesity, diabetes mellitus, non-alcoholic steatohepatitis, chronic kidney disease and cancer in terms of prognosis...
October 2016: European Review for Medical and Pharmacological Sciences
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