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Peripheral fatigue

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https://www.readbyqxmd.com/read/28538257/what-s-in-the-literature
#1
Mark Bromberg, Nicholas J Silvestri, David Lacomis
In this edition, we provide a detailed summary of an informative book, "GBS100: Celebrating a Century of Progress in Guillain-Barré Syndrome" developed by the Peripheral Nerve Society to honor the centenary of the original paper on Guillain-Barré Syndrome. We also review various studies in myasthenia gravis including: management with rituximab; the efficacy of early fast-acting treatment with corticosteroids; and various dosing strategies for tacrolimus. Finally, we review new studies including: the potential pathogenesis, risk factors, and functional decline of patients with inclusion body myositis; MxA immunoreactivity in dermatomyositis; diagnostic approaches for evaluating patients with myalgia, fatigue, and exercise intolerance; MRI patterns in genetic muscle disease; and MRI as an outcome measure in facioscapulohumeral muscular dystrophy...
June 2017: Journal of Clinical Neuromuscular Disease
https://www.readbyqxmd.com/read/28537136/feasibility-and-tolerability-of-daily-pulse-consumption-in-individuals-with-peripheral-artery-disease
#2
Alanna Baldwin, Peter Zahradka, Wendy Weighell, Randolph P Guzman, Carla G Taylor
The present study investigated the feasibility, tolerability, and adherence of daily consumption of whole pulses (dried beans, peas, lentils, chickpeas) by individuals with peripheral artery disease participating in an 8-week study. Study questionnaires and semi-structured interviews for 26 participants were used to determine prestudy pulse consumption and participants' experiences with respect to adherence, positive and negative effects, bowel routine, satiety, and enjoyment of the foods. Although the majority of participants rarely consumed pulses prior to the study, there was a high rate of adherence to daily consumption of the study foods for 8 weeks despite comments regarding study fatigue during the latter part of the study...
May 24, 2017: Canadian Journal of Dietetic Practice and Research
https://www.readbyqxmd.com/read/28536367/a-brief-review-of-the-pharmacology-of-amitriptyline-and-clinical-outcomes-in-treating-fibromyalgia
#3
REVIEW
Kim Lawson
Fibromyalgia is a complex chronic condition characterized by pain, physical fatigue, sleep disorder and cognitive impairment. Evidence-based guidelines recommend antidepressants as treatments of fibromyalgia where tricyclics are often considered to have the greatest efficacy, with amitriptyline often being a first-line treatment. Amitriptyline evokes a preferential reduction in pain and fatigue of fibromyalgia, and in the Fibromyalgia Impact Questionnaire (FIQ) score, which is a quality of life assessment. The multimodal profile of the mechanisms of action of amitriptyline include monoamine reuptake inhibition, receptor modulation and ion channel modulation...
May 17, 2017: Biomedicines
https://www.readbyqxmd.com/read/28536336/-clinical-experience-of-s-1-and-oxaliplatin-sox-as-the-first-line-chemotherapy-for-metastatic-recurrent-gastric-cancer
#4
Takahiro Toyokawa, Tatsuro Tamura, Masatsune Shibutani, Goh Ohira, Sadaaki Yamazoe, Kenjiro Kimura, Hisashi Nagahara, Ryosuke Amano, Hiroaki Tanaka, Kazuya Muguruma, Masakazu Yashiro, Kosei Hirakawa, Masaichi Ohira
We retrospectively investigated the efficacy and safety of S-1 and oxaliplatin(SOX)as the first-line chemotherapy in patients with metastatic/recurrent gastric cancer. A total of 27 patients who received SOX as the first-line chemotherapy in our hospital were considered for the study. The SOX chemotherapy schedule consisted of 1 course every 3 weeks. S-1 was administered orally, at 80-120mg-body, every day for 14 days. Oxaliplatin was infused at 100mg/m2 on day 1 of each course. The median number of treatment courses was 7...
May 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28527013/central-activation-metabolites-and-calcium-handling-during-fatigue-with-repeated-maximal-isometric-contractions-in-human-muscle
#5
Simeon P Cairns, Luke A G Inman, Caroline P MacManus, Ingrid G L van de Port, Patricia A Ruell, Jeanette M Thom, Martin W Thompson
PURPOSE: To determine the roles of calcium (Ca(2+)) handling by sarcoplasmic reticulum (SR) and central activation impairment (i.e., central fatigue) during fatigue with repeated maximal voluntary isometric contractions (MVC) in human muscles. METHODS: Contractile performance was assessed during 3 min of repeated MVCs (7-s contraction, 3-s rest, n = 17). In ten participants, in vitro SR Ca(2+)-handling, metabolites, and fibre-type composition were quantified in biopsy samples from quadriceps muscle, along with plasma venous [K(+)]...
May 19, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28512409/immunoglobulin-d-multiple-myeloma-presenting-as-spontaneous-fracture
#6
Samer Al Hadidi, Khalil Katato, Ghassan Bachuwa
Immunoglobulin D multiple myeloma is a rare type of multiple myeloma that usually presents as bone pain, fatigue, or weight loss. We report a case of immunoglobulin D multiple myeloma in a 53-year-old Caucasian male patient with previous medical history of anaplastic oligodendroglioma status post-surgical resection who was evaluated for back pain while mowing the lawn. His physical examination showed tenderness over the lower thoracic vertebrae with no sensory or motor impairment. Initial lab investigations showed normocytic anemia and hypercalcemia with low parathyroid hormone...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28511848/intense-resistance-exercise-increases-peripheral-brain-derived-neurotrophic-factor
#7
Kieran J Marston, Michael J Newton, Belinda M Brown, Stephanie R Rainey-Smith, Sabine Bird, Ralph N Martins, Jeremiah J Peiffer
OBJECTIVES: Brain-derived neurotrophic factor (BDNF) has been shown to increase in an intensity dependent manner in response to aerobic exercise. However, previous research investigating the use of resistance exercise to increase BDNF levels has been less conclusive, likely due to the low intensity nature of traditional resistance exercise programs. This study examined the influence of acute resistance exercise to-fatigue on serum BDNF levels and blood lactate. DESIGN: Acute crossover study...
March 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28506161/symmetric-peripheral-running-sutures-are-superior-to-asymmetric-peripheral-running-sutures-for-increasing-the-tendon-strength-in-flexor-tendon-repair
#8
N Takeuchi, T Okada, N Kozono, T Shimoto, H Higaki, Y Iwamoto
BACKGROUND: The fatigue strength of three peripheral suture techniques for flexor tendon repair was compared by cyclic loading of the repairs in the porcine flexor digitorum tendon. METHODS: Thirty-six tendons were sutured using only peripheral sutures with 6-0 Nylon. An initial cyclic load of 10 N for 500 cycles was applied and increased by 10 N for an additional 500 cycles at each new load until rupture. RESULTS: The fatigue strength of the symmetric running peripheral suture was 85...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28502777/peripheral-muscle-fatigue-in-hospitalised-geriatric-patients-is-associated-with-circulating-markers-of-inflammation
#9
Pauline Arnold, Rose Njemini, Stijn Vantieghem, Jacques Duchateau, Tony Mets, Ingo Beyer, Ivan Bautmans
Geriatric patients with acute infection show increased muscle weakness and fatigability but the relative contribution of central and peripheral factors is unclear. Hospitalised patients with acute infection (82±6years, N=10) and community-dwelling controls (76±6years, N=19) sustained a maximal voluntary isometric contraction of the M. Adductor Pollicis until strength dropped to 50% of its maximal value. Voluntary muscle activation (VA) was assessed before and at the end of the fatigue protocol using twitch interpolation method and muscle activity was monitored using surface electromyography...
May 10, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28500647/serum-bdnf-and-il-6-response-to-high-volume-mechanically-demanding-exercise
#10
Vaidas Verbickas, Sigitas Kamandulis, Audrius Snieckus, Tomas Venckunas, Neringa Baranauskiene, Marius Brazaitis, Danguole Satkunskiene, Alvydas Unikauskas, Albertas Skurvydas
INTRODUCTION: The aim of this study was to follow circulating brain-derived neurotrophic factor (BDNF) and interleukin 6 (IL-6) levels in response to severe muscle-damaging exercise. METHODS: Young healthy men (N=10) performed a bout of mechanically demanding stretch shortening cycle exercise consisting of 200 drop jumps. Voluntary and electrically induced knee extension torque, serum BDNF levels, and IL-6 levels were measured before and for up to 7 days after exercise...
May 13, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28499979/inspiratory-muscle-training-improves-intercostal-and-forearm-muscle-oxygenation-in-patients-with-chronic-heart-failure-evidence-of-the-origin-of-the-respiratory-metaboreflex
#11
Adalgiza M Moreno, Alessandra C Toledo-Arruda, Jéssica S Lima, Carolina S Duarte, Humberto Vilacortta-Junior, Antonio C L Nóbrega
BACKGROUND: The impact of inspiratory muscle training (IMT) on respiratory and peripheral muscle oxygenation and perfusion during inspiratory muscle fatigue in patients with chronic heart failure has not been established. METHODS AND RESULTS: Twenty-six patients with chronic heart failure were randomly assigned to either 8 weeks of IMT or to a control group. Inspiratory fatigue was induced by a progressive inspiratory resistive loading protocol until there was an inability to sustain inspiratory pressure, when the inspiratory muscle metaboreflex should be activated...
May 9, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28496351/fatigue-in-patients-with-inflammatory-bowel-disease-is-associated-with-distinct-differences-in-immune-parameters
#12
Lauran Vogelaar, Colin de Haar, Bas Rj Aerts, Maikel P Peppelenbosch, Reinier Timman, Bettina E Hanssen, C Janneke van der Woude
BACKGROUND: Although it is well recognized that fatigue is an important problem in many of the quiescent inflammatory bowel disease (IBD) patients, it is unknown whether the immune status is different in fatigued versus non-fatigued patients. In this study, we contrasted various characteristics of the immune system in fatigued against non-fatigued patients with IBD in clinical remission. PATIENTS AND METHODS: Patients with IBD in clinical remission were phenotyped according to the Montreal classification, and the checklist individual strength-fatigue (CIS-fatigue) was used to assess fatigue (CIS-fatigue ≥ 35)...
2017: Clinical and Experimental Gastroenterology
https://www.readbyqxmd.com/read/28485522/effects-of-1-month-withdrawal-of-ventilatory-support-in-hypercapnic-myotonic-dystrophy-type-1
#13
Fergal J O'Donoghue, Jean-Christian Borel, Yves Dauvilliers, Patrick Levy, Renaud Tamisier, Jean-Louis Pépin
BACKGROUND AND OBJECTIVE: The benefits of domiciliary non-invasive ventilation (NIV) in myotonic dystrophy type 1 (DM1) are unclear. We sought to determine the effects of elective discontinuation of ventilatory support for 1 month in DM1 patients receiving NIV for chronic hypercapnic respiratory failure. METHODS: At baseline, 12 patients underwent polysomnography, and assessment of subjective (Epworth Sleepiness Scale) and objective (Oxford Sleep Resistance Test) sleepiness, fatigue (Fatigue Severity Scale), respiratory function including muscle strength, arterial blood gas (ABG), hypercapnic ventilatory response (HCVR), Blood Pressure, peripheral arterial tonometry (PAT) and pulse wave velocity (PWV)...
May 9, 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/28478837/the-spread-of-ebv-to-ectopic-lymphoid-aggregates-may-be-the-final-common-pathway-in-the-pathogenesis-of-me-cfs
#14
Willy Eriksen
According to the hypothesis presented here, myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) develops over 3 steps: Step 1 is characterized by the aggregation of lymphoid cells in dorsal root ganglia or other nervous structures. The cause of this formation of ectopic lymphoid aggregates may be an acute infection, asymptomatic reactivations of a common neurotropic virus, exposure to a neurotoxin, or physical injury to peripheral nerves. In step 2, Epstein-Barr virus (EBV)-infected lymphocytes or monocytes bring EBV from the circulation to one or several of these lymphoid aggregates, whereupon cell-to-cell transmission of EBV and proliferation of latently EBV-infected lymphocytes lead to the presence of many EBV-infected cells in the lymphoid aggregates...
May 2017: Medical Hypotheses
https://www.readbyqxmd.com/read/28478704/the-interaction-of-psychological-and-physiological-homeostatic-drives-and-role-of-general-control-principles-in-the-regulation-of-physiological-systems-exercise-and-the-fatigue-process-the-integrative-governor-theory
#15
A St Clair Gibson, J Swart, R Tucker
Either central (brain) or peripheral (body physiological system) control mechanisms, or a combination of these, have been championed in the last few decades in the field of Exercise Sciences as how physiological activity and fatigue processes are regulated. In this review, we suggest that the concept of 'central' or 'peripheral' mechanisms are both artificial constructs that have 'straight-jacketed' research in the field, and rather that competition between psychological and physiological homeostatic drives is central to the regulation of both, and that governing principles, rather than distinct physical processes, underpin all physical system and exercise regulation...
May 6, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28471824/early-detection-of-sporadic-pancreatic-cancer-time-for-change
#16
Přemysl Frič, Aleksi Šedo, Jan Škrha, Petr Bušek, Martin Laclav, Pavel Škrha, Miroslav Zavoral
Sporadic pancreatic cancer amounts to ∼90% of all pancreatic cancers. It is a gloomy, depressive disease: the formula describes well the behavior of many SPC patients, and the most recalcitrant malignancy, with a very low 5-year survival (3-6%). At present, diagnostic methods are commonly applied, as used half a century ago, after the appearance of local and systemic symptoms (abdominal and back pain, cholestasis, painless jaundice, fatigue, anorexia, weight loss, anemia, peripheral phlebitis, and cachexia)...
May 3, 2017: European Journal of Gastroenterology & Hepatology
https://www.readbyqxmd.com/read/28467726/hiv-patient-systemic-mitochondrial-respiration-improves-with-exercise
#17
Morgan Kocher, Mindy McDermott, Rachel Lindsey, Cecilia Shikuma, Mariana Gerschenson, Dominic Chow, Lindsay Kohorn, Ronald K Hetzler, Iris Kimura
INTRODUCTION: In HIV-infected individuals, impaired mitochondrial function may contribute to cardio-metabolic disease as well as to fatigue and frailty. Aerobic exercise improves total body energy reserves; however its impact at the cellular level is unknown. We assessed alterations in cellular bioenergetics in peripheral blood mononuclear cells (PBMC) before and after a 12 week aerobic exercise study in sedentary HIV-infected subjects on stable antiretroviral therapy (ART) who successfully completed a 12 week aerobic exercise program...
May 3, 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/28453542/phospholipid-profiling-of-plasma-from-gw-veterans-and-rodent-models-to-identify-potential-biomarkers-of-gulf-war-illness
#18
Tanja Emmerich, Zuchra Zakirova, Nancy Klimas, Kimberly Sullivan, Ashok K Shetty, James E Evans, Ghania Ait-Ghezala, Gary S Laco, Bharathi Hattiangady, Geetha A Shetty, Michael Mullan, Gogce Crynen, Laila Abdullah, Fiona Crawford
Gulf War Illness (GWI), which affects at least one fourth of the 700,000 veterans deployed to the Gulf War (GW), is characterized by persistent and heterogeneous symptoms, including pain, fatigue and cognitive problems. As a consequence, this illness remains difficult to diagnose. Rodent models have been shown to exhibit different symptomatic features of GWI following exposure to particular GW agents (e.g. pyridostigmine bromide, permethrin and DEET) and/or stress. Preclinical analyses have shown the activation of microglia and astroglia as a pathological hallmark in these mouse and rat models...
2017: PloS One
https://www.readbyqxmd.com/read/28447489/forodesine-in-the-treatment-of-cutaneous-t-cell-lymphoma
#19
Daniel J Lewis, Madeleine Duvic
Cutaneous T-cell lymphoma (CTCL) is characterized by the accumulation of neoplastic CD4+ T lymphocytes in the skin. Given the lack of curative treatments for CTCL, there is a significant need for new, superior therapies. Forodesine is a transition-state analogue that inhibits purine nucleoside phosphorylase. Because it selectively targets T lymphocytes, it represents a drug of interest for the treatment of CTCL. Areas covered: Phase I/II dose-ranging studies of intravenous (IV) and oral forodesine demonstrated its activity, safety, and tolerability for refractory CTCL...
May 5, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28442790/serotonergic-dysfunctions-and-abnormal-iron-metabolism-relevant-to-mental-fatigue-of-parkinson-disease
#20
Li-Jun Zuo, Shu-Yang Yu, Yang Hu, Fang Wang, Ying-Shan Piao, Teng-Hong Lian, Qiu-Jin Yu, Rui-Dan Wang, Li-Xia Li, Peng Guo, Yang Du, Rong-Yan Zhu, Zhao Jin, Ya-Jie Wang, Xiao-Min Wang, Piu Chan, Sheng-Di Chen, Yong-Jun Wang, Wei Zhang
Fatigue is a very common non-motor symptom in Parkinson disease (PD) patients. It included physical fatigue and mental fatigue. The potential mechanisms of mental fatigue involving serotonergic dysfunction and abnormal iron metabolism are still unknown. Therefore, we evaluated the fatigue symptoms, classified PD patients into fatigue group and non-fatigue group, and detected the levels of serotonin, iron and related proteins in CSF and serum. In CSF, 5-HT level is significantly decreased and the levels of iron and transferrin are dramatically increased in fatigue group...
December 21, 2016: Scientific Reports
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