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https://www.readbyqxmd.com/read/28633487/high-intensity-interval-training-hiit-improves-physical-performance-and-frailty-in-aged-mice
#1
Kenneth Ladd Seldeen, Ginger Lasky, Merced Maria Leiker, Manhui Pang, Kirkwood Ely Personius, Bruce Robert Troen
Sarcopenia and frailty are highly prevalent in older individuals, increasing the risk of disability and loss of independence. High intensity interval training (HIIT) may provide a robust intervention for both sarcopenia and frailty by achieving both strength and endurance benefits with lower time commitments than other exercise regimens. To better understand the impacts of HIIT during aging, we compared 24-month-old C57BL/6J sedentary mice with those that were administered 10-minute uphill treadmill HIIT sessions three times per week over 16 weeks...
June 17, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28633440/low-alanine-aminotransferase-levels-in-the-elderly-frailty-disability-sarcopenia-and-reduced-survival
#2
Umberto Vespasiani-Gentilucci, Antonio De Vincentis, Luigi Ferrucci, Stefania Bandinelli, Raffaele Antonelli Incalzi, Antonio Picardi
Background: Although low alanine aminotransferase (ALT) levels have been associated with poor outcomes in the elderly, the determinants subtending this association have been poorly explored. To gain insight into this topic, we analyzed data from a prospective population-based database (InCHIANTI study) in which frailty, disability, sarcopenia and pyridoxine levels were systematically assessed. Methods: Data are from 765 participants aged >65 years (mean age 75...
June 19, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28633139/mitochondrial-metabolism-in-a-large-animal-model-of-huntington-disease-the-hunt-for-biomarkers-in-the-spermatozoa-of-presymptomatic-minipigs
#3
Jana Krizova, Hana Stufkova, Marie Rodinova, Monika Macakova, Bozena Bohuslavova, Daniela Vidinska, Jiri Klima, Zdenka Ellederova, Antonin Pavlok, David S Howland, Jiri Zeman, Jan Motlik, Hana Hansikova
BACKGROUND: Huntington disease (HD) is a fatal neurodegenerative disorder involving reduced muscle coordination, mental and behavioral changes, and testicular degeneration. In order to further clarify the decreased fertility and penetration ability of the spermatozoa of transgenic HD minipig boars (TgHD), we applied a set of mitochondrial metabolism (MM) parameter measurements to this promising biological material, which can be collected noninvasively in longitudinal studies. OBJECTIVE: We aimed to optimize methods for MM measurements in spermatozoa and to establish possible biomarkers of HD in TgHD spermatozoa expressing the N-terminal part of mutated human huntingtin...
June 21, 2017: Neuro-degenerative Diseases
https://www.readbyqxmd.com/read/28632769/combining-omics-and-microscopy-to-visualize-interactions-between-the-asian-citrus-psyllid-vector-and-the-huanglongbing-pathogen-candidatus-liberibacter-asiaticus-in-the-insect-gut
#4
Angela Kruse, Somayeh Fattah-Hosseini, Surya Saha, Richard Johnson, EricaRose Warwick, Kasie Sturgeon, Lukas Mueller, Michael J MacCoss, Robert G Shatters, Michelle Cilia Heck
Huanglongbing, or citrus greening disease, is an economically devastating bacterial disease of citrus. It is associated with infection by the gram-negative bacterium Candidatus Liberibacter asiaticus (CLas). CLas is transmitted by Diaphorina citri, the Asian citrus psyllid (ACP). For insect transmission to occur, CLas must be ingested during feeding on infected phloem sap and cross the gut barrier to gain entry into the insect vector. To investigate the effects of CLas exposure at the gut-pathogen interface, we performed RNAseq and mass spectrometry-based proteomics to analyze the transcriptome and proteome, respectively, of ACP gut tissue...
2017: PloS One
https://www.readbyqxmd.com/read/28630601/international-society-of-sports-nutrition-position-stand-diets-and-body-composition
#5
REVIEW
Alan A Aragon, Brad J Schoenfeld, Robert Wildman, Susan Kleiner, Trisha VanDusseldorp, Lem Taylor, Conrad P Earnest, Paul J Arciero, Colin Wilborn, Douglas S Kalman, Jeffrey R Stout, Darryn S Willoughby, Bill Campbell, Shawn M Arent, Laurent Bannock, Abbie E Smith-Ryan, Jose Antonio
Position Statement: The International Society of Sports Nutrition (ISSN) bases the following position stand on a critical analysis of the literature regarding the effects of diet types (macronutrient composition; eating styles) and their influence on body composition. The ISSN has concluded the following. 1) There is a multitude of diet types and eating styles, whereby numerous subtypes fall under each major dietary archetype. 2) All body composition assessment methods have strengths and limitations. 3) Diets primarily focused on fat loss are driven by a sustained caloric deficit...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28629737/the-obligatory-role-of-activin-a-in-the-formation-of-heterotopic-bone-in-fibrodysplasia-ossificans-progressiva
#6
Dana M Alessi Wolken, Vincent Idone, Sarah J Hatsell, Paul B Yu, Aris N Economides
Fibrodysplasia Ossificans Progressiva (FOP) is a rare genetic disorder that presents at birth with only minor patterning defects, but manifests its debilitating pathology early in life with episodic, yet progressive and cumulative, heterotopic ossification (HO) of ligaments, tendons, and a subset of major skeletal muscles. The resulting HO lesions are endochondral in nature, and appear to be linked to inflammatory stimuli arising in association with known injuries, or from inflammation linked to normal tissue repair...
June 16, 2017: Bone
https://www.readbyqxmd.com/read/28628542/a-rare-intramedullary-spinal-cord-metastasis-from-a-retroperitoneal-leiomyosarcoma-presenting-as-a-non-traumatic-spinal-cord-injury
#7
Andrew Lamberth Parker, Terrence Pugh, Mark A Hirsch
Leiomyosarcoma (LMS) is a rare but well-recognized malignant soft tissue sarcoma of smooth muscle origin. Metastases commonly occur in the lungs, liver, kidney, brain, and bone. Cases of metastatic osseous lesions or other extradural space-occupying masses secondary to LMS leading to neurologic compromise are relatively commonplace in the literature. Conversely, cases of intramedullary spinal cord metastasis (ISCM), an unusual entity as a sequela of any cancer, are exceedingly rare as a consequence of LMS. Only 2 cases of an ISCM from LMS are currently documented in the literature, and to the best of our knowledge, no case is described in the rehabilitation literature...
July 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28624084/water-diffusion-to-assess-meat-microstructure
#8
Luca Laghi, Luca Venturi, Nicolò Dellarosa, Massimiliano Petracci
In the quest for setting up rapid methods to evaluate water retention ability of meat microstructures, time domain nuclear magnetic resonance (TD-NMR) has gained a prominent role, due to the possibility to observe water located outside the myofibrils, easily lost upon storage or cooking. Diffusion weighted signals could be used to monitor the shape and dimension of the pores in which water is confined, thus boosting the information offered by TD-NMR. The work outlines a parsimonious model to describe relative abundance and diffusion coefficient of intra and extra myofibrillar water populations, exchange rate between them, diameter of the myofibrillar cells...
December 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28623239/-ccug-n-rna-toxicity-in-a-drosophila-model-for-myotonic-dystrophy-type-2-dm2-activates-apoptosis
#9
Vildan Betul Yenigun, Mario Sirito, Alla Amcheslavky, Tomek Czernuszewicz, Jordi Colonques-Bellmunt, Irma García-Alcover, Marzena Wojciechowska, Clare Bolduc, Zhihong Chen, Arturo López Castel, Ralf Krahe, Andreas Bergmann
The myotonic dystrophies are prototypic toxic RNA gain-of-function diseases. Myotonic dystrophy type 1 (DM1) and type 2 (DM2) are caused by different unstable, noncoding microsatellite repeat expansions -- (CTG)DM1 in DMPK and (CCTG)DM2 in CNBP Although transcription of mutant repeats into (CUG)DM1 or (CCUG)DM2 appears to be necessary and sufficient to cause disease, their pathomechanisms remain incompletely understood. To study the mechanisms of (CCUG)DM2 toxicity and develop a convenient model for drug screening, we generated a transgenic DM2 model in the fruit fly Drosophila melanogaster with (CCUG)n repeats of variable length (n=16 and 106)...
June 16, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28623008/yucca-schidigera-can-promote-rabbit-growth-fecundity-affect-the-release-of-hormones-in-vivo-and-in-vitro-induce-pathological-changes-in-liver-and-reduce-ovarian-resistance-to-benzene
#10
Martina Földešiová, Andrej Baláži, Ľubica Chrastinová, Juraj Pivko, Jan Kotwica, Abdel Halim Harrath, Peter Chrenek, Alexander V Sirotkin
This study evaluated the effect of Yucca schidigera (YS) extract on the physiological, reproductive, and endocrine indexes of New Zealand White rabbit does. Six-week-old rabbit does were fed a standard diet (control group) or a diet enriched with 5 or 20g of Y powder extract per 100-kg feed mixture for 350days. The does were artificially inseminated after induction of superovulation. Weight gain; conception and kindling rate; viability of pups and mothers; histopathological state of liver and muscle; plasma levels of progesterone (P4), oxytocin (OT), and prostaglandin F (PGF); and the release of P4, insulin-like growth factor I (IGF-I), OT, and PGF by isolated ovarian fragments and their response to the addition of benzene were analyzed...
June 10, 2017: Animal Reproduction Science
https://www.readbyqxmd.com/read/28622300/the-als-linked-e102q-mutation-in-sigma-receptor-1-leads-to-er-stress-mediated-defects-in-protein-homeostasis-and-dysregulation-of-rna-binding-proteins
#11
Alice Dreser, Jan Tilmann Vollrath, Antonio Sechi, Sonja Johann, Andreas Roos, Alfred Yamoah, Istvan Katona, Saeed Bohlega, Dominik Wiemuth, Yuemin Tian, Axel Schmidt, Jörg Vervoorts, Marc Dohmen, Cordian Beyer, Jasper Anink, Eleonora Aronica, Dirk Troost, Joachim Weis, Anand Goswami
Amyotrophic lateral sclerosis (ALS) is characterized by the selective degeneration of motor neurons (MNs) and their target muscles. Misfolded proteins which often form intracellular aggregates are a pathological hallmark of ALS. Disruption of the functional interplay between protein degradation (ubiquitin proteasome system and autophagy) and RNA-binding protein homeostasis has recently been suggested as an integrated model that merges several ALS-associated proteins into a common pathophysiological pathway...
June 16, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28621182/-non-intubated-uniportal-video-assisted-thoracic-surgery-vats-lobectomy-as-a-new-procedure-in-our-department
#12
József Furák, Zsolt Szabó, Theodor Horváth, Tibor Géczi, Balázs Pécsy, Tibor Németh, Aurél Ottlakán, Zsolt Molnár, György Lázár
AIM: Due to the emerging experience in VATS (video assisted thoracic surgery) lobectomies, in some centers the so called "non-intubated" VATS lobectomies (NITS - non-intubated thoracic surgery) gained increased authority, during which endotracheal intubation and muscle relaxation of the patient is not carried out, thus surgery is being performed with the patient breathing spontaneously. The recent study deals with our initial experience gained during uniportal NITS VATS lobectomies. PATIENTS AND METHOD: Between 24...
June 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28620483/utilisation-of-supplemented-l-carnitine-for-fuel-efficiency-as-an-antioxidant-and-for-muscle-recovery-in-labrador-retrievers
#13
Jessica L Varney, J W Fowler, W C Gilbert, C N Coon
The primary goal was to investigate the effects of l-carnitine on fuel efficiency, as an antioxidant, and for muscle recovery in Labrador retrievers. Dogs were split into two groups, with one group being supplemented with 250 mg/d of Carniking™ l-carnitine powder. Two experiments (Expt 1 and Expt 2) were performed over a 2-year period which included running programmes, activity monitoring, body composition scans and evaluation of recovery using biomarkers. Each experiment differed slightly in dog number and design: fifty-six v...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/28617826/cf2-transcription-factor-is-involved-in-the-regulation-of-mef2-rna-levels-nuclei-number-and-muscle-fiber-size
#14
Juan J Arredondo, Jorge Vivar, Sara Laine-Menéndez, Leticia Martínez-Morentin, Margarita Cervera
CF2 and Mef2 influence a variety of developmental muscle processes at distinct stages of development. Nevertheless, the exact nature of the CF2-Mef2 relationship and its effects on muscle building remain yet to be resolved. Here, we explored the regulatory role of CF2 in the Drosophila embryo muscle formation. To address this question and not having proper null CF2 mutants we exploited loss or gain of function strategies to study the contribution of CF2 to Mef2 transcription regulation and to muscle formation...
2017: PloS One
https://www.readbyqxmd.com/read/28617715/strength-and-muscular-adaptations-following-6-weeks-of-rest-pause-versus-traditional-multiple-sets-resistance-training-in-trained-subjects
#15
Jonato Prestes, Ramires Alsamir Tibana, Eduardo de Araujo Sousa, Dahan da Cunha Nascimento, Pollyanna de Oliveira Rocha, Nathalia Ferreira Camarço, Nuno Manuel Frade de Sousa, Jeffrey M Willardson
The purpose of the present study was to compare the longitudinal effects of six weeks of rest-pause versus traditional multiple-set RT on muscle strength, hypertrophy, localized muscular endurance, and body composition in trained subjects. Eighteen trained subjects (mean ± SD; age = 30.2 ± 6.6 years; weight = 74.8 ± 17.2 kg; height = 171.4 ± 10.3 cm) were randomly assigned to either a traditional multiple-set group (n = 9; 7 males and 2 females; 3 sets of 6 repetitions with 80% of 1-RM and 2 min rest intervals between sets) or a rest-pause group (n = 9; 7 males and 2 females)...
April 4, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28616108/advances-in-basic-science-methodologies-for-clinical-diagnosis-in-female-stress-urinary-incontinence
#16
REVIEW
Marwa Abdulaziz, Emily G Deegan, Alex Kavanagh, Lynn Stothers, Denise Pugash, Andrew Macnab
We provide an overview of advanced imaging techniques currently being explored to gain greater understanding of the complexity of stress urinary incontinence (SUI) through better definition of structural anatomic data. Two methods of imaging and analysis are detailed for SUI with or without prolapse: 1) open magnetic resonance imaging (MRI) with or without the use of reference lines; and 2) 3D reconstruction of the pelvis using MRI. An additional innovative method of assessment includes the use of near infrared spectroscopy (NIRS), which uses non-invasive photonics in a vaginal speculum to objectively evaluate pelvic floor muscle (PFM) function as it relates to SUI pathology...
June 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
https://www.readbyqxmd.com/read/28615421/outcomes-of-colorado-children-with-acute-flaccid-myelitis-at-1-year
#17
Jan A Martin, Kevin Messacar, Michele L Yang, John A Maloney, Jennifer Lindwall, Terri Carry, Patricia Kenyon, Stefan H Sillau, Joyce Oleszek, Kenneth L Tyler, Samuel R Dominguez, Teri L Schreiner
OBJECTIVE: We describe long-term functional, neurodiagnostic, and psychosocial outcomes of a cohort of 12 children from Colorado diagnosed with acute flaccid myelitis (AFM) in 2014. METHODS: Children were assessed every 3 months for 1 year or until clinical resolution. Assessments included neurologic examination, MRI, EMG/nerve conduction studies (NCS), functional measures (Assisting Hand Assessment, Hammersmith Functional Motor Scale), and Patient-Reported Outcomes Measurement Information System questionnaires...
June 14, 2017: Neurology
https://www.readbyqxmd.com/read/28614768/melanocortin-4-receptor-agonist-ro27-3225-ameliorates-soleus-but-not-gastrocnemius-atrophy-in-arthritic-rats
#18
A B Gomez-Sanmiguel, M P Nieto-Bona, C Fernandez-Galaz, T Priego, A I Martin, A Lopez-Calderon
Adjuvant-induced arthritis in rats decreases body weight and muscle mass. Melanocyte stimulating hormone administration to arthritic rats decreases inflammation and skeletal muscle wasting. In this study, we investigate whether activation of melanocortin-4 receptor by RO27-3225 administration is able to prevent the effect of arthritis on the expression of muscle-specific E3 ubiquitin ligases and MyoD in two different muscles, gastrocnemius (a mainly fast type muscle) and soleus (slow type). Arthritis was induced in male Wistar rats by intradermal injection of Freund's adjuvant...
April 2017: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/28612427/simulation-based-investigation-of-deleterious-nssnp-s-in-atxn2-gene-and-its-structural-consequence-towards-spinocerebellar-ataxia
#19
Siddharth Sinha, Sharad Verma, Aditi Singh, Pallavi Somvanshi, Abhinav Grover
Spinocerebellar degeneration, termed as ataxia is a neurological disorder of central nervous system, characterized by limb in-coordination and a progressive gait. The patient also demonstrates specific symptoms of muscle weakness, slurring of speech, and decreased vibration senses. Expansion of polyglutamine trinucleotide (CAG) within ATXN2 gene with 35 or more repeats, results in spinocerebellar ataxia type-2. Protein ataxin-2 coded by ATXN2 gene has been reported to have a crucial role in translation of the genetic information through sequestering the histone acetyl transferases (HAT) resulting in a state of hypo-acetylation...
June 14, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28610637/the-effects-of-resistance-training-on-muscle-strength-joint-pain-and-hand-function-in-individuals-with-hand-osteoarthritis-a-systematic-review-and-meta-analysis
#20
Nicoló Edoardo Magni, Peter John McNair, David Andrew Rice
BACKGROUND: Hand osteoarthritis is a common condition characterised by joint pain and muscle weakness. These factors are thought to contribute to ongoing disability. Some evidence exists that resistance training decreases pain, improves muscle strength, and enhances function in people with knee and hip osteoarthritis. However, there is currently a lack of consensus regarding its effectiveness in people with hand osteoarthritis. Therefore, the aim of this systematic review and meta-analysis was to establish whether resistance training in people with hand osteoarthritis increases grip strength, decreases joint pain, and improves hand function...
June 13, 2017: Arthritis Research & Therapy
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