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https://www.readbyqxmd.com/read/29136305/neural-basis-of-exertional-fatigue-in-the-heat-a-review-of-magnetic-resonance-imaging-methods
#1
REVIEW
X R Tan, Ivan C C Low, Mary C Stephenson, T W Soong, Jason K W Lee
The central nervous system, specifically the brain, is implicated in the development of exertional fatigue under a hot environment. Diverse neuroimaging techniques have been used to visualize the brain activity during or after exercise. Notably, the use of magnetic resonance imaging (MRI) has become prevalent due to its excellent spatial resolution and versatility. This review evaluates the significance and limitations of various brain MRI techniques in exercise studies - brain volumetric analysis, functional MRI, functional connectivity MRI and arterial spin labelling...
November 14, 2017: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29127316/exercise-induced-changes-in-cerebrospinal-fluid-mirnas-in-gulf-war-illness-chronic-fatigue-syndrome-and-sedentary-control-subjects
#2
James N Baraniuk, Narayan Shivapurkar
Gulf War Illness (GWI) and Chronic Fatigue Syndrome (CFS) have similar profiles of pain, fatigue, cognitive dysfunction and exertional exhaustion. Post-exertional malaise suggests exercise alters central nervous system functions. Lumbar punctures were performed in GWI, CFS and control subjects after (i) overnight rest (nonexercise) or (ii) submaximal bicycle exercise. Exercise induced postural tachycardia in one third of GWI subjects (Stress Test Activated Reversible Tachycardia, START). The remainder were Stress Test Originated Phantom Perception (STOPP) subjects...
November 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29118716/etiology-and-recovery-of-neuromuscular-fatigue-following-competitive-soccer-match-play
#3
Callum G Brownstein, Jack P Dent, Paul Parker, Kirsty M Hicks, Glyn Howatson, Stuart Goodall, Kevin Thomas
Aim: Previous research into the etiology of neuromuscular fatigue following competitive soccer match-play has primarily focused on peripheral perturbations, with limited research assessing central nervous system function in the days post-match. The aim of the present study was to examine the contribution and time-course of recovery of central and peripheral factors toward neuromuscular fatigue following competitive soccer match-play. Methods: Sixteen male semi-professional soccer players completed a 90-min soccer match...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29115912/hyperoxia-for-performance-and-training
#4
D A Cardinale, B Ekblom
Recent technological developments have made it possible to use hyperoxia as an enhancement aid during training. Athletes wearing a mask can breathe a higher fraction of oxygen from a stationary or portable apparatus while exercising. A large body of evidence indicates that the oxygen transport capacity, lactate metabolism, power output and work tolerance (endurance) are improved when breathing hyperoxia. The physiological mechanisms underlying these performance improvements, although still not fully elucidated, are based on higher oxygen delivery and reduced central fatigue...
November 8, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29101820/extending-the-limits-of-force-endurance-stimulation-of-the-motor-or-the-frontal-cortex
#5
Rémi Radel, Gavin Tempest, Gauthier Denis, Pierre Besson, Raphael Zory
Previous findings indicate that facilitation of primary motor cortex (PMC) activity using trans-cranial direct current stimulation (tDCS) could improve resistance to physical fatigue. However, studies have failed to consistently replicate these results. Using non-focal-tDCS during a fatiguing task, recent work showed no enhancement of corticospinal excitability of the PMC despite a longer endurance time and suggested that contamination in other brain regions involved in motor command may have occurred. In accordance with recent evidence supporting the role of the prefrontal cortex (PFC) in exercise maintenance, this double-blind sham-controlled crossover study (N = 22) compared the effect of high definition (HD)-tDCS of the PMC or the PFC on endurance time of a sustained contraction task of the elbow flexor...
October 9, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29097315/mapping-of-thalamic-magnetic-susceptibility-in-multiple-sclerosis-indicates-decreasing-iron-with-disease-duration-a-proposed-mechanistic-relationship-between-inflammation-and-oligodendrocyte-vitality
#6
Ferdinand Schweser, Ana Luiza Raffaini Duarte Martins, Jesper Hagemeier, Fuchun Lin, Jannis Hanspach, Bianca Weinstock-Guttman, Simon Hametner, Niels P Bergsland, Michael G Dwyer, Robert Zivadinov
Recent advances in susceptibility MRI have dramatically improved the visualization of deep gray matter brain regions and the quantification of their magnetic properties in vivo, providing a novel tool to study the poorly understood iron homeostasis in the human brain. In this study, we used an advanced combination of the recent quantitative susceptibility mapping technique with dedicated analysis methods to study intra-thalamic tissue alterations in patients with clinically isolated syndrome (CIS) and multiple sclerosis (MS)...
October 30, 2017: NeuroImage
https://www.readbyqxmd.com/read/29090455/furuncular-myiasis-for-the-western-dermatologist-treatment-in-outpatient-consultation
#7
Romain Blaizot, Christophe Vanhecke, Philippe Le Gall, Alexandre Duvignaud, Marie-Catherine Receveur, Denis Malvy
BACKGROUND: Furuncular myiasis is likely to be seen by Western dermatologists because of the increasing number of international travelers but remains unfamiliar to most of them, who tend to refer these patients to hospitals. Different treatments have been proposed, but many of them are not achievable in outpatient consultation. METHODS: We reported three typical cases of furuncular myiasis, according to each species involved, and proposed diagnostic and therapeutic guidelines for dermatologists in outpatient consultation...
October 31, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/29083464/initiating-exercise-interventions-to-promote-wellness-in-cancer-patients-and-survivors
#8
REVIEW
Anna L Schwartz, Hendrik Dirk de Heer, Jennifer W Bea
Exercise is associated with significant reductions in the recurrence and mortality rates of several common cancers. Cancer survivors who exercise can potentially benefit from reduced levels of fatigue, and improved quality of life, physical function, and body composition (ie, healthier ratios of lean body mass to fat mass). The amount of activity required to achieve protective effects is moderate (eg, walking 30 minutes per day at 2.5 miles per hour). However, many healthcare providers report a lack of awareness of the appropriate exercise recommendations across the phases of cancer survivorship, considerations regarding the timing of exercise interventions, and the ability to refer patients to exercise programs specifically aimed at cancer survivors...
October 15, 2017: Oncology (Williston Park, NY)
https://www.readbyqxmd.com/read/29079354/effect-of-luting-agent-on-the-load-to-failure-and-accelerated-fatigue-resistance-of-lithium-disilicate-laminate-veneers
#9
Marco M M Gresnigt, Mutlu Özcan, Marco Carvalho, Priscilla Lazari, Marco S Cune, Peywand Razavi, Pascal Magne
OBJECTIVE: The aim of this study was to investigate the influence of the luting agent on the application of laminate veneers (LVs) in an accelerated fatigue and load-to-failure test after thermo-cyclic aging. METHODS: Sound maxillary central incisors (N=40) were randomly divided into four groups to receive LVs (Li2Si2O5) that were adhesively bonded: Group CEMF: Adhesive cement (Variolink Esthetic LC), fatigue test; Group CEMLF: Adhesive cement, load-to-failure test; Group COMF: Resin composite (Enamel HFO), fatigue test; Group COMLF: Resin composite, load-to-failure test...
October 24, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/29078005/psychological-treatments-for-people-with-epilepsy
#10
REVIEW
Rosa Michaelis, Venus Tang, Janelle L Wagner, Avani C Modi, William Curt LaFrance, Laura H Goldstein, Tobias Lundgren, Markus Reuber
BACKGROUND: Given the significant impact epilepsy can have on the health-related quality of life (HRQoL) of individuals with epilepsy and their families, there is great clinical interest in evidence-based psychological treatments, aimed at enhancing psychological well-being in people with epilepsy. A review of the current evidence was needed to assess the effects of psychological treatments for people with epilepsy on HRQoL outcomes, in order to inform future therapeutic recommendations and research designs...
October 27, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29072362/clinical-effectiveness-and-cost-effectiveness-of-nurse-led-care-in-chinese-patients-with-rheumatoid-arthritis-a-randomized-trial-comparing-with-rheumatologist-led-care
#11
Junru Wang, Xiulan Zou, Ling Cong, Huina Liu
BACKGROUND AND AIM: The concept of nurse-led care (NLC) was not familiar in China. This study was designed to evaluate the clinical effectiveness and cost-effectiveness of NLC versus rheumatologist-led care (RLC) in Chinese patients with rheumatoid arthritis (RA). METHODS: Patients of either gender (aged ≥18 years) with RA were enrolled at Wenhai Central Hospital, China (January 2015 to December 2015). The participants were then randomized to NLC or RLC. Outcomes of both the groups were compared in terms of effectiveness by measuring the Disease Activity Score 28, visual analogue scores pertaining to pain and fatigue, and duration of morning stiffness...
October 26, 2017: International Journal of Nursing Practice
https://www.readbyqxmd.com/read/29069392/biomedical-enhancement-of-warfighters-and-the-legal-protection-of-military-medical-personnel-in-armed-conflict
#12
Rain Liivoja
Under international law, military medical personnel and facilities must be respected and protected in the event of an armed conflict. This special status only applies to personnel and facilities exclusively engaged in certain enumerated medical duties, especially the treatment of the wounded and sick, and the prevention of disease. Military medical personnel have, however, been called upon to engage in the biomedical enhancement of warfighters, as exemplified by the supply of central nervous system stimulants as a fatigue countermeasure...
October 24, 2017: Medical Law Review
https://www.readbyqxmd.com/read/29065649/antagonist-muscle-prefatigue-increases-the-intracortical-communication-between-contralateral-motor-cortices-during-elbow-extension-contraction
#13
Lejun Wang, Aidi Ma, Yuting Wang, Songhui You, Aiyun Lu
To investigate the cortico-cortical coupling changes related to antagonist muscle prefatigue, we recorded EEG at FC3, C3, FC4, and C4 electrodes of twelve young male volunteers during a 30-second-long, nonfatiguing isometric elbow extension contraction with a target force level of 20% MVC before and after a sustained fatiguing elbow flexion contraction until task failure. EEG-EEG phase synchronization indices in alpha and beta frequency bands were calculated for the pre- and postfatigue elbow extension contractions...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29061281/electroencephalographic-and-peripheral-temperature-dynamics-during-a-prolonged-psychomotor-vigilance-task
#14
Enrique Molina, Daniel Sanabria, Tzyy-Ping Jung, Ángel Correa
Attention lapses and fatigue are a main source of impaired performance that can lead to accidents. This study analyzed electroencephalographic (EEG) dynamics and body skin temperature as markers of attentional fluctuations in non-sleep deprived subjects during a 45min Psychomotor Vigilance Task (PVT). Independent Component Analysis and time-frequency analysis were used to evaluate the EEG data. Results showed a positive association between distal and distal-to-proximal gradient (DPG) temperatures and reaction time (RT); increments in EEG power in alpha-, theta- and beta-band frequencies in parieto-occipital, central-medial and frontal components, were associated with poor performance (slower RT) in the task...
October 20, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/29059209/neoadjuvant-chemotherapy-versus-primary-debulking-surgery-in-advanced-epithelial-ovarian-cancer-a-meta-analysis-of-peri-operative-outcome
#15
Lijuan Yang, Bo Zhang, Guangyang Xing, Jingran Du, Bin Yang, Qianqian Yuan, Yongxiu Yang
OBJECTIVE: To assess whether neoadjuvant chemotherapy (NACT) is superior to primary debulking surgery (PDS) with regard to optimal cytoreduction, peri-operative morbidity, mortality, and quality of life (QOL) in advanced epithelial ovarian cancer (EOC). METHODS: We searched the PubMed, Embase, Cochrane Central Register of Controlled Trials, Web of Science, Registers of Clinical Trials for randomized controlled trials (RCTs) comparing NACT to PDS in women with Federation of International Gynaecologists and Obstetricians stage Ⅲ-Ⅳ EOC...
2017: PloS One
https://www.readbyqxmd.com/read/29052663/self-management-intervention-for-adult-cancer-survivors-after-treatment-a-systematic-review-and-meta-analysis
#16
Soo Hyun Kim, Kisook Kim, Deborah K Mayer
PROBLEM IDENTIFICATION: This study aims to evaluate the effects of self-management interventions (SMIs) for cancer survivors who completed primary treatment. 
. LITERATURE SEARCH: Using PubMed, EMBASE, CINAHL®, PsycINFO®, and Cochrane Central Register of Controlled Trails (CENTRAL), the authors conducted a systematic search of randomized, controlled trials published in English from database conception through June 2016. 
. DATA EVALUATION: The meta-analysis was conducted with Cochrane Review Manager, version 5...
November 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/29046179/coping-and-changes-in-arousal-after-exposure-to-gz-load
#17
Marcin Piotr Biernacki, Rafal Lewkowicz, Piotr Zieliński, Mieczyslaw Wojtkowiak
BACKGROUND: Acceleration load causes several physiological changes that play important roles in pilot performance. One of the problems is determining individual factors responsible for the differences in changes in the level of central nervous system (CNS) arousal after exposure to acceleration loads. We were interested in whether the coping style and anxiety as a trait might differentiate the subjects in terms of reactions of the CNS to +Gz load-related stress. METHODS: Examined were 31 male volunteers with ages between 23 and 30 yr...
November 1, 2017: Aerospace Medicine and Human Performance
https://www.readbyqxmd.com/read/29045512/gemcitabine-plus-sirolimus-for-relapsed-and-progressing-osteosarcoma-patients-after-standard-chemotherapy-a-multicenter-single-arm-phase-ii-trial-of-spanish-group-for-research-on-sarcoma-geis
#18
J Martin-Broto, A Redondo, C Valverde, M A Vaz, J Mora, X Garcia Del Muro, A Gutierrez, C Tous, A Carnero, D Marcilla, A Carranza, P Sancho, J Martinez-Trufero, R Diaz-Beveridge, J Cruz, V Encinas, M Taron, D S Moura, P Luna, N Hindi, A Lopez-Pousa
Background: Patients with relapsed unresectable osteosarcoma represents an unmet need, so active and safe systemic treatments are required. FAS and mTOR pathways are implicated in progressing osteosarcoma, and we had preclinical and clinical experience with a scheme that targets both pathways. Therefore, we designed a phase II trial with gemcitabine plus rapamycin, to determine the efficacy and safety, in this subset of patients. Patients and Methods: A multicenter, single-arm phase II trial was sponsored by the Spanish Group for Research on Sarcoma (GEIS)...
September 25, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/29044496/ncctg-n0879-alliance-a-randomized-phase-2-cooperative-group-trial-of-carboplatin-paclitaxel-and-bevacizumab%C3%A2-%C3%A2-%C3%A2-everolimus-for-metastatic-melanoma
#19
Robert R McWilliams, Jacob B Allred, Jessica A Slostad, Rajini Katipamula, Roxana S Dronca, Kandelaria M Rumilla, Lori A Erickson, Alan H Bryce, Richard W Joseph, Lisa A Kottschade, David M King, John M Leitch, Svetomir N Markovic
BACKGROUND: Despite the success of immune checkpoint and targeted therapy, many patients with melanoma ultimately require further treatment. The combination of carboplatin, paclitaxel, and bevacizumab (CPB) has demonstrated promising activity in a single-arm study. In the current study, the authors performed a randomized phase 2 study to confirm efficacy and to determine whether adding everolimus would increase the activity of the combination. METHODS: Through the North Central Cancer Treatment Group, a total of 149 patients with unresectable AJCC 6th edition stage IV melanoma were randomized from May 2010 to May 2014 to either CPB or CPB with everolimus (CPBE)...
October 17, 2017: Cancer
https://www.readbyqxmd.com/read/29033099/custirsen-ogx-011-combined-with-cabazitaxel-and-prednisone-versus-cabazitaxel-and-prednisone-alone-in-patients-with-metastatic-castration-resistant-prostate-cancer-previously-treated-with-docetaxel-affinity-a-randomised-open-label-international-phase-3-trial
#20
Tomasz M Beer, Sebastien J Hotte, Fred Saad, Boris Alekseev, Vsevolod Matveev, Aude Fléchon, Gwenaelle Gravis, Florence Joly, Kim N Chi, Zafar Malik, Brent Blumenstein, Patricia S Stewart, Cindy A Jacobs, Karim Fizazi
BACKGROUND: Docetaxel and cabazitaxel improve overall survival compared with mitoxantrone in patients with metastatic castration-resistant prostate cancer. Custirsen (OGX011) is a second generation highly specific antisense oligonucleotide that inhibits the production of clusterin, an antiapoptotic protein that is upregulated in response to chemotherapy and that confers treatment resistance. We aimed to assess whether custirsen in combination with cabazitaxel and prednisone increases overall survival in patients with metastatic castration-resistant prostate cancer previously treated with docetaxel...
October 9, 2017: Lancet Oncology
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