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https://www.readbyqxmd.com/read/29333581/high-final-energy-of-gallium-arsenide-laser-increases-myod-gene-expression-during-the-intermediate-phase-of-muscle-regeneration-after-cryoinjury-in-rats
#1
Caroline Pereira Santos, Andreo Fernando Aguiar, Ines Cristina Giometti, Thaoan Bruno Mariano, Carlos Eduardo Assumpção de Freitas, Gisele Alborghetti Nai, Selma Zambelli de Freitas, Maeli Dal Pai-Silva, Francis Lopes Pacagnelli
The aim of this study was to determine the effects of gallium arsenide (GaAs) laser on IGF-I, MyoD, MAFbx, and TNF-α gene expression during the intermediate phase of muscle regeneration after cryoinjury 21 Wistar rats were divided into three groups (n = 7 per group): untreated with no injury (control group), cryoinjury without GaAs (injured group), and cryoinjury with GaAs (GaAs-injured group). The cryoinjury was induced in the central region of the tibialis anterior muscle (TA). The region injured was irradiated once a day during 14 days using GaAs laser (904 nm; spot size 0...
January 15, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29333278/clinical-influence-of-exercise-therapy-on-sarcopenia-in-patients-with-chronic-pancreatitis-a-study-protocol-for-a-randomised-controlled-trial
#2
Kazunori Yoh, Hiroki Nishikawa, Hirayuki Enomoto, Yoshinori Iwata, Akio Ishii, Yukihisa Yuri, Noriko Ishii, Yuho Miyamoto, Kunihiro Hasegawa, Chikage Nakano, Ryo Takata, Takashi Nishimura, Nobuhiro Aizawa, Yoshiyuki Sakai, Naoto Ikeda, Tomoyuki Takashima, Hiroko Iijima, Shuhei Nishiguchi
Introduction and purpose: Chronic pancreatitis (CP) involves progressive inflammatory changes to the pancreas and can lead to permanent structural damage and impairment of both endocrine and exocrine functions. Current reports highlight a rise in the incidence and prevalence of CP. However, there is limited data currently available concerning patients with CP undergoing exercise therapy (ET). We aim to prospectively examine the influence of ET on sarcopenia in patients with CP. Methods and analysis: A detailed evaluation of the nutritional condition and the daily physical activities of each participant will be conducted prior to entering the study...
2018: BMJ Open Gastroenterology
https://www.readbyqxmd.com/read/29332917/significance-of-sarcopenia-evaluation-in-acute-decompensated-heart-failure
#3
Keiichi Tsuchida, Yuki Fujihara, Jiro Hiroki, Takahiro Hakamata, Ryohei Sakai, Kota Nishida, Koji Sudo, Komei Tanaka, Yukio Hosaka, Kazuyoshi Takahashi, Hirotaka Oda
In patients with chronic heart failure (HF), the clinical importance of sarcopenia has been recognized in relation to disease severity, reduced exercise capacity, and adverse clinical outcome. Nevertheless, its impact on acute decompensated heart failure (ADHF) is still poorly understood. Dual-energy X-ray absorptiometry (DXA) is a technique for quantitatively analyzing muscle mass and the degree of sarcopenia. Fat-free mass index (FFMI) is a noninvasive and easily applicable marker of muscle mass.This was a prospective observational cohort study comprising 38 consecutive patients hospitalized for ADHF...
January 15, 2018: International Heart Journal
https://www.readbyqxmd.com/read/29331171/the-genotypic-and-phenotypic-spectrum-of-mto1-deficiency
#4
James J O'Byrne, Maja Tarailo-Graovac, Aisha Ghani, Michael Champion, Charu Deshpande, Ali Dursun, Riza K Ozgul, Peter Freisinger, Ian Garber, Tobias B Haack, Rita Horvath, Ivo Barić, Ralf A Husain, Leo A J Kluijtmans, Urania Kotzaeridou, Andrew A Morris, Colin J Ross, Saikat Santra, Jan Smeitink, Mark Tarnopolsky, Saskia B Wortmann, Johannes A Mayr, Michaela Brunner-Krainz, Holger Prokisch, Wyeth W Wasserman, Ron A Wevers, Udo F Engelke, Richard J Rodenburg, Teck Wah Ting, Robert McFarland, Robert W Taylor, Ramona Salvarinova, Clara D M van Karnebeek
BACKGROUND: Mitochondrial diseases, a group of multi-systemic disorders often characterized by tissue-specific phenotypes, are usually progressive and fatal disorders resulting from defects in oxidative phosphorylation. MTO1 (Mitochondrial tRNA Translation Optimization 1), an evolutionarily conserved protein expressed in high-energy demand tissues has been linked to human early-onset combined oxidative phosphorylation deficiency associated with hypertrophic cardiomyopathy, often referred to as combined oxidative phosphorylation deficiency-10 (COXPD10)...
January 2018: Molecular Genetics and Metabolism
https://www.readbyqxmd.com/read/29330588/whole-body-3d-kinematics-of-bird-take-off-key-role-of-the-legs-to-propel-the-trunk
#5
Pauline Provini, Anick Abourachid
Previous studies showed that birds primarily use their hindlimbs to propel themselves into the air in order to take-off. Yet, it remains unclear how the different parts of their musculoskeletal system move to produce the necessary acceleration. To quantify the relative motions of the bones during the terrestrial phase of take-off, we used biplanar fluoroscopy in two species of birds, diamond dove (Geopelia cuneata) and zebra finch (Taeniopygia guttata). We obtained a detailed 3D kinematics analysis of the head, the trunk and the three long bones of the left leg...
January 6, 2018: Die Naturwissenschaften
https://www.readbyqxmd.com/read/29321930/a-case-of-pulmonary-cyst-and-pneumothorax-after-bronchial-thermoplasty
#6
Akifumi Funatsu, Konomi Kobayashi, Motoyasu Iikura, Satoru Ishii, Shinyu Izumi, Haruhito Sugiyama
Bronchial thermoplasty (BT) is a bronchoscopic treatment for severe asthma using thermal energy to reduce smooth muscle in the bronchial wall. A 47-year-old man underwent BT for uncontrolled severe asthma despite maximal pharmacological treatment. After a third procedure, he experienced hypoxaemia because of complete bilateral upper lobe atelectasis. A pulmonary cyst suddenly emerged in to the right middle lobe, associated with the pneumothorax on postoperative day 6, and a chest drainage tube was inserted...
February 2018: Respirology Case Reports
https://www.readbyqxmd.com/read/29320878/exercise-training-for-improving-outcomes-post-burns-a-systematic-review-and-meta-analysis
#7
Orlando Flores, Zephanie Tyack, Kellie Stockton, Robert Ware, Jennifer D Paratz
OBJECTIVES: To determine the effectiveness of different modalities of exercise and to evaluate the safety of exercise-based interventions post-burns. DATA SOURCES: Six databases were searched from inception to October 2017 using "burn," "exercise" and synonyms as keywords. Relevant authors, key journals and reference lists of included studies were hand-searched. REVIEW METHODS: Articles reporting on exercise interventions in patients post-burn and considering physical, physiological or psychological outcomes were considered...
January 1, 2018: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29319436/plasma-fatty-acids-as-markers-for-desaturase-and-elongase-activities-in-spinal-cord-injured-males
#8
Lynnette M Jones, Michael Legge
OBJECTIVE: To investigate the use of surrogate plasma fatty acid analysis to provide further insights into the underlying adiposity and the development of metabolic syndrome in men with spinal cord injury (SCI). DESIGN: Case-control, cross-sectional study. SETTING: Community-based individuals with spinal cord injury and healthy controls. PARTICIPANTS: Twenty men with SCI age, height and weight matched with 20 able-bodied controls...
January 10, 2018: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/29318723/endothelium-specific-cyp2j2-overexpression-attenuates-age-related-insulin-resistance
#9
Yan Yang, Ruolan Dong, Zhihui Chen, Danli Hu, Menglu Fu, Ying Tang, Dao Wen Wang, Xizhen Xu, Ling Tu
Ample evidences demonstrate that cytochrome P450 epoxygenase-derived epoxyeicosatrienoic acids (EETs) exert diverse biological activities, which include potent vasodilatory, anti-inflammatory, and cardiovascular protective effects. In this study, we investigated the effects of endothelium-specific CYP2J2 overexpression on age-related insulin resistance and metabolic dysfunction. Endothelium-specific targeting of the human CYP epoxygenase, CYP2J2, transgenic mice (Tie2-CYP2J2-Tr mice) was utilized. The effects of endothelium-specific CYP2J2 overexpression on aging-associated obesity, inflammation, and peripheral insulin resistance were evaluated by assessing metabolic parameters in young (3 months old) and aged (16 months old) adult male Tie2-CYP2J2-Tr mice...
January 10, 2018: Aging Cell
https://www.readbyqxmd.com/read/29317435/skeletal-muscle-specific-deletion-of-mkp-1-reveals-a-p38-mapk-jnk-akt-signaling-node-that-regulates-obesity-induced-insulin-resistance
#10
Ahmed Lawan, Kisuk Min, Lei Zhang, Alberto Canfran-Duque, Michael J Jurczak, Joao Paulo G Camporez, Yaohui Nie, Timothy P Gavin, Gerald I Shulman, Carlos Hernandez-Fernando, Anton M Bennett
Stress responses promote obesity and insulin resistance, in part, by activating the stress-responsive mitogen-activated protein kinases (MAPKs), p38 MAPK and c-Jun NH2 kinase (JNK). Stress also induces expression of MAPK phosphatase-1 (MKP-1), which inactivates both JNK and p38 MAPK. However, the equilibrium between JNK/p38 MAPK and MKP-1 signaling in the development of obesity and insulin resistance is unclear. Skeletal muscle is a major tissue involved in energy expenditure and glucose metabolism. In skeletal muscle, MKP-1 is upregulated in high fat-diet fed mice and in skeletal muscle of obese humans...
January 9, 2018: Diabetes
https://www.readbyqxmd.com/read/29317401/acute-and-chronic-increases-of-circulating-fstl1-normalize-energy-substrate-metabolism-in-pacing-induced-heart-failure
#11
Mitsuru Seki, Jeffery C Powers, Sonomi Maruyama, Maria A Zuriaga, Chia-Ling Wu, Clara Kurishima, Lydia Kim, Jesse Johnson, Anthony Poidomani, Tao Wang, Eric Muñoz, Sudarsan Rajan, Joon Y Park, Kenneth Walsh, Fabio A Recchia
BACKGROUND: FSTL1 (follistatin-like protein 1) is an emerging cardiokine/myokine that is upregulated in heart failure (HF) and is found to be cardioprotective in animal models of cardiac injury. We tested the hypothesis that circulating FSTL1 can affect cardiac function and metabolism under baseline physiological conditions and in HF. METHODS AND RESULTS: FSTL1 was acutely (10 minutes) or chronically (2 weeks) infused to attain clinically relevant blood levels in conscious dogs with cardiac tachypacing-induced HF...
January 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29315914/coupling-mechanical-and-electrical-properties-in-spin-crossover-polymer-composites
#12
Sylvain Rat, Mario Piedrahita-Bello, Lionel Salmon, Gábor Molnár, Philippe Demont, Azzedine Bousseksou
Spin crossover particles of formula [Fe{(Htrz)2 (trz)}0.9 (NH2 -trz)0.3 ](BF4 )1.1 and average size of 20 nm ± 8 nm are homogeneously dispersed in poly(vinylidene fluoride-co-trifluoro-ethylene), P(VDF-TrFE), and poly(vinylidene fluoride) (PVDF) matrices to form macroscopic (cm-scale), freestanding, and flexible nanocomposite materials. The composites exhibit concomitant thermal expansion and discharge current peaks on cycling around the spin transition temperatures, i.e., new "product properties" resulting from the synergy between the particles and the matrix...
January 8, 2018: Advanced Materials
https://www.readbyqxmd.com/read/29315586/dietary-enzymatically-treated-artemisia-annua-l-improves-meat-quality-antioxidant-capacity-and-energy-status-of-breast-muscle-in-heat-stressed-broilers
#13
Xiaoli Wan, Hussain Ahmad, Lili Zhang, Zhiyue Wang, Tian Wang
BACKGROUND: Heat stress (HS) is detrimental to animal origin food production. Artemisia annua L., a natural source of phenolic compounds and flavonoids, exhibits antioxidant property. This study was conducted to evaluate the effects of dietary enzymatically treated Artemisia annua L. (EA) supplementation on meat quality, antioxidant capacity and energy status of breast muscle in heat-stressed broilers. RESULTS: The EA inclusion increased the redness value, reduced drip loss, decreased reactive oxygen metabolites and thiobarbituric acid-reactive substances, increased antioxidant enzyme activities, and reduced the ferric reducing antioxidant power and free radical scavenging abilities of breast muscle in heat-treated broilers...
January 9, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29315328/pgc-1%C3%AE-regulates-alanine-metabolism-in-muscle-cells
#14
Yukino Hatazawa, Kun Qian, Da-Wei Gong, Yasutomi Kamei
The skeletal muscle is the largest organ in the human body, depositing energy as protein/amino acids, which are degraded in catabolic conditions such as fasting. Alanine is synthesized and secreted from the skeletal muscle that is used as substrates of gluconeogenesis in the liver. During fasting, the expression of PGC-1α, a transcriptional coactivator of nuclear receptors, is increased in the liver and regulates gluconeogenesis. In the present study, we observed increased mRNA expression of PGC-1α and alanine aminotransferase 2 (ALT2) in the skeletal muscle during fasting...
2018: PloS One
https://www.readbyqxmd.com/read/29315239/mangiferin-accelerates-glycolysis-and-enhances-mitochondrial-bioenergetics
#15
Zhongbo Liu, Pasha Apontes, Ekaterina V Fomenko, Nan Chi, Victor L Schuster, Irwin J Kurland, Jeffrey E Pessin, Yuling Chi
One of the main causes of hyperglycemia is inefficient or impaired glucose utilization by skeletal muscle, which can be exacerbated by chronic high caloric intake. Previously, we identified a natural compound, mangiferin (MGF) that improved glucose utilization in high fat diet (HFD)-induced insulin resistant mice. To further identify the molecular mechanisms of MGF action on glucose metabolism, we conducted targeted metabolomics and transcriptomics studies of glycolyic and mitochondrial bioenergetics pathways in skeletal muscle...
January 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29311764/effects-of-beetroot-juice-supplementation-on-intermittent-high-intensity-exercise-efforts
#16
REVIEW
Raúl Domínguez, José Luis Maté-Muñoz, Eduardo Cuenca, Pablo García-Fernández, Fernando Mata-Ordoñez, María Carmen Lozano-Estevan, Pablo Veiga-Herreros, Sandro Fernandes da Silva, Manuel Vicente Garnacho-Castaño
Beetroot juice contains high levels of inorganic nitrate (NO3-) and its intake has proved effective at increasing blood nitric oxide (NO) concentrations. Given the effects of NO in promoting vasodilation and blood flow with beneficial impacts on muscle contraction, several studies have detected an ergogenic effect of beetroot juice supplementation on exercise efforts with high oxidative energy metabolism demands. However, only a scarce yet growing number of investigations have sought to assess the effects of this supplement on performance at high-intensity exercise...
2018: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/29305636/lower-lean-mass-measured-by-dual-energy-x-ray-absorptiometry-dxa-is-not-associated-with-increased-risk-of-hip-fracture-in-women-the-framingham-osteoporosis-study
#17
Robert R McLean, Douglas P Kiel, Sarah D Berry, Kerry E Broe, Xiaochun Zhang, L Adrienne Cupples, Marian T Hannan
Although muscle mass influences strength in older adults, it is unclear whether low lean mass measured by dual-energy X-ray absorptiometry (DXA) is an independent risk factor for hip fracture. Our objective was to determine the association between DXA lean mass and incident hip fracture risk among 1978 women aged 50 years and older participating in the Framingham Study Original and Offspring cohorts. Leg and total body lean mass (kg) were assessed from whole-body DXA scans collected in 1992-2001. Hip fracture follow-up extended from DXA assessment to the occurrence of fracture, death, drop-out, or end of follow-up in 2007...
January 5, 2018: Calcified Tissue International
https://www.readbyqxmd.com/read/29304744/a-randomised-controlled-intervention-study-investigating-the-efficacy-of-carotenoid-rich-fruits-and-vegetables-and-extra-virgin-olive-oil-on-attenuating-sarcopenic-symptomology-in-overweight-and-obese-older-adults-during-energy-intake-restriction-protocol-paper
#18
Anthony Villani, Hattie Wright, Gary Slater, Jonathan Buckley
BACKGROUND: Weight loss interventions have not been advocated for overweight/obese older adults due to potential loss of skeletal muscle and strength impacting on physical function with potential loss of independence. Carotenoids and polyphenols are inversely associated with sarcopenic symptomology. This paper reports the protocol of a study evaluating the efficacy of a high-protein, energy restricted diet rich in carotenoids and polyphenols on body composition, muscle strength, physical performance and quality of life in overweight and obese older adults...
January 5, 2018: BMC Geriatrics
https://www.readbyqxmd.com/read/29303486/hearts-during-ischemia-with-or-without-htk-protection-analysed-by-dielectric-spectroscopy
#19
Michael Schaefer, Wolfgang Gross, Martha-Maria Gebhard
We investigated canine hearts during ischemia after aortic cross clamping (UI, n=20) and after HTK-cardioplegia (HTK, n=24) at 35°C, 25°C, 15°C, and 5°C with the aim to compare tissue changes caused by the activity of anaerobic metabolism(AAM), cell membrane destruction(CD), and gap junction uncoupling(GJU). We measured continuously the complex dielectric spectrum(DS), ATP- and lactate content, extracellular pH, and rigor contracture. To identify changes in DS caused by AAM, CD, and GJU we performed additional experiments on the gap junction-free skeletal muscle...
January 5, 2018: Physiological Measurement
https://www.readbyqxmd.com/read/29301869/astragaloside-iv-inhibits-ventricular-remodeling-and-improves-fatty-acid-utilization-in-rats-with-chronic-heart-failure
#20
Bin Tang, Jin-Guo Zhang, Hong-Yong Tan, Xi-Qing Wei
Chronic heart failure (CHF) is the end-stage of many cardiovascular diseases and severely affects the patients' lifespan. Inhibiting ventricular remodeling is thus a primary treatment target for CHF patients. Astragaloside IV (AS-IV) can improve cardiac function and protect myocardial cells. The study aims to investigate the effects of AS-IV on ventricular remodeling and explore its role in regulating energy metabolism using a rat CHF model. Sprague Dawley rats were divided into 5 groups (N=20 per group):  CHF + benazepril hydrochloride, CHF + low-dose (30 mg...
January 4, 2018: Bioscience Reports
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