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https://www.readbyqxmd.com/read/28375548/exercise-based-cardiac-rehabilitation-in-heart-transplant-recipients
#1
REVIEW
Lindsey Anderson, Tricia T Nguyen, Christian H Dall, Laura Burgess, Charlene Bridges, Rod S Taylor
BACKGROUND: Heart transplantation is considered to be the gold standard treatment for selected patients with end-stage heart disease when medical therapy has been unable to halt progression of the underlying pathology. Evidence suggests that aerobic exercise training may be effective in reversing the pathophysiological consequences associated with cardiac denervation and prevent immunosuppression-induced adverse effects in heart transplant recipients. OBJECTIVES: To determine the effectiveness and safety of exercise-based rehabilitation on the mortality, hospital admissions, adverse events, exercise capacity, health-related quality of life, return to work and costs for people after heart transplantation...
April 4, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28177127/emerging-roles-of-er-stress-and-unfolded-protein-response-pathways-in-skeletal-muscle-health-and-disease
#2
REVIEW
Kyle R Bohnert, Joseph D McMillan, Ashok Kumar
Skeletal muscle is the most abundant tissue in the human body and can adapt its mass as a consequence of physical activity, metabolism, growth factors, and disease conditions. Skeletal muscle contains an extensive network of endoplasmic reticulum (ER), called sarcoplasmic reticulum, which plays an important role in the regulation of proteostasis and calcium homeostasis. In many cell types, environmental and genetic factors that disrupt ER function cause an accumulation of misfolded and unfolded proteins in the ER lumen that ultimately leads to ER stress...
February 8, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28109285/korean-mistletoe-viscum-album-coloratum-extract-regulates-gene-expression-related-to-muscle-atrophy-and-muscle-hypertrophy
#3
Juseong Jeong, Choon-Ho Park, Inbo Kim, Young-Ho Kim, Jae-Min Yoon, Kwang-Soo Kim, Jong-Bae Kim
BACKGROUND: Korean mistletoe (Viscum album coloratum) is a semi-parasitic plant that grows on various trees and has a diverse range of effects on biological functions, being implicated in having anti-tumor, immunostimulatory, anti-diabetic, and anti-obesity properties. Recently, we also reported that Korean mistletoe extract (KME) improves endurance exercise in mice, suggesting its beneficial roles in enhancing the capacity of skeletal muscle. METHODS: We examined the expression pattern of several genes concerned with muscle physiology in C2C12 myotubes cells to identify whether KME inhibits muscle atrophy or promotes muscle hypertrophy...
January 21, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28087606/reinnervation-post-heart-transplantation
#4
Avishay Grupper, Henry Gewirtz, Sudhir Kushwaha
Heart transplantation results in complete denervation of the donor heart with loss of afferent and efferent nerve connections. The majority of patients remain completely denervated during the first 6-12 months following transplantation. Evidence of reinnervation is usually found during the second year after transplantation and involve the myocardial muscle, sinoatrial node, and coronary vessels, but remains incomplete and regionally limited many years post-transplant. Restoration of cardiac innervation can improve exercise capacity as well as blood flow regulation in the coronary arteries, and hence improve quality of life...
January 12, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28078066/use-it-or-lose-it-tonic-activity-of-slow-motoneurons-promotes-their-survival-and-preferentially-increases-slow-fiber-type-groupings-in-muscles-of-old-lifelong-recreational-sportsmen
#5
Simone Mosole, Ugo Carraro, Helmut Kern, Stefan Loefler, Sandra Zampieri
Histochemistry, immuno-histochemistry, gel electrophoresis of single muscle fibers and electromyography of aging muscles and nerves suggest that: i) denervation contributes to muscle atrophy, ii) impaired mobility accelerates the process, and iii) lifelong running protects against loss of motor units. Recent corroborating results on the muscle effects of Functional Electrical Stimulation (FES) of aged muscles will be also mentioned, but we will in particular discuss how and why a lifelong increased physical activity sustains reinnervation of muscle fibers...
September 15, 2016: European Journal of Translational Myology
https://www.readbyqxmd.com/read/28052304/is-tadpole-pupil-in-an-adolescent-girl-caused-by-denervation-hypersensitivity
#6
Jonas Kjeldbjerg Hansen, Hans Ulrik Møller
Tadpole pupil is a rarely encountered phenomenon caused by episodic, segmental iris dilator muscle spasm of short duration (2-15 minutes), occurring in clusters without a known precipitating factor. It has most commonly been described in women aged 28 to 48 years. A few hypotheses on pathogenesis have been discussed but none has been proved. Here, we present an adolescent girl with bilateral tadpole pupil that appeared during physical exercise. This is the first pediatric case of tadpole pupil, not caused by preceding surgery, to be published...
January 4, 2017: Neuropediatrics
https://www.readbyqxmd.com/read/28009987/pericardial-effusion-is-correlated-with-clinical-outcome-after-pulmonary-artery-denervation-for-pulmonary-arterial-hypertension
#7
Shao-Liang Chen, Hang Zhang, Du-Jiang Xie, Juan Zhang, Ling Zhou, Meng-Xuan Chen, Gregg W Stone
OBJECTIVES: Pericardial effusion (PE) is correlated with outcomes in patients with pulmonary arterial hypertension (PAH). Pulmonary artery denervation (PADN) was used for treatment of PAH. The present study aimed to analyze the prognostic value of PE for outcomes after PADN in patients with WHO Group I, Group II and Group IV PAH. RESULTS: PE, frequently seen in patients with connective tissue disease, was featured by fast heart rate, decreased exercise capacity, more syncope, worsening pulmonary arterial hemodynamic and right atrium size...
December 20, 2016: Oncotarget
https://www.readbyqxmd.com/read/27988231/effects-of-percutaneous-renal-sympathetic-denervation-on-cardiac-function-and-exercise-tolerance-in-patients-with-chronic-heart-failure
#8
Jun-Qing Gao, Yun Xie, Wei Yang, Jian-Pu Zheng, Zong-Jun Liu
INTRODUCTION: Sympathetic hyperactivity, a vital factor in the genesis and development of heart failure (HF), has been reported to be effectively reduced by percutaneous renal denervation (RDN), which may play an important role in HF treatment. OBJECTIVE: To determine the effects of percutaneous RDN on cardiac function in patients with chronic HF (CHF). METHODS: Fourteen patients (mean age 69.6 years; ejection fraction [EF] <45%) with CHF received bilateral RDN...
January 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/27984178/endogenous-modulation-of-trkb-signaling-by-treadmill-exercise-after-peripheral-nerve-injury
#9
Ariadna Arbat-Plana, Stefano Cobianchi, Mireia Herrando-Grabulosa, Xavier Navarro, Esther Udina
After peripheral nerve injury, transected fibers distal to the lesion are disconnected from the neuronal body. This results in target denervation but also massive stripping of the central synapses of axotomized motoneurons, disrupting spinal circuits. Even when axonal regeneration is successful, the non-specific target reinnervation and the limited rebuilding of spinal circuits impair functional recovery. Therefore, strategies aimed to preserve spinal circuits after nerve lesions may improve the functional outcome...
January 6, 2017: Neuroscience
https://www.readbyqxmd.com/read/27964759/voluntary-resistance-wheel-exercise-from-mid-life-prevents-sarcopenia-and-increases-markers-of-mitochondrial-function-and-autophagy-in-muscles-of-old-male-and-female-c57bl-6j-mice
#10
Zoe White, Jessica Terrill, Robert B White, Christopher McMahon, Phillip Sheard, Miranda D Grounds, Tea Shavlakadze
BACKGROUND: There is much interest in the capacity of resistance exercise to prevent the age-related loss of skeletal muscle mass and function, known as sarcopenia. This study investigates the molecular basis underlying the benefits of resistance exercise in aging C57BL/6J mice of both sexes. RESULTS: This study is the first to demonstrate that long-term (34 weeks) voluntary resistance wheel exercise (RWE) initiated at middle age, from 15 months, prevents sarcopenia in selected hindlimb muscles and causes hypertrophy in soleus, by 23 months of age in both male and female C57BL/6J mice...
December 13, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27908698/potential-role-of-endurance-training-in-altering-renal-sympathetic-nerve-activity-in-ckd
#11
REVIEW
Erin J Howden, Justin S Lawley, Murray Esler, Benjamin D Levine
Chronic kidney disease (CKD), is characterized by a progressive loss of renal function and increase in cardiovascular risk. In this review paper, we discuss the pathophysiology of increased sympathetic nerve activity in CKD patients and raise the possibility of endurance exercise being an effective countermeasure to address this problem. We specifically focus on the potential role of endurance training in altering renal sympathetic nerve activity as increased renal sympathetic nerve activity negatively impacts kidney function as well indirectly effects multiple other systems and organs...
November 25, 2016: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/27875513/post-traumatic-trigeminal-neuropathy-caused-by-an-orbital-stab-wound
#12
Shinpei Matsuda, Hitoshi Yoshimura, Tadanori Hamano, Kazuo Sano
Sensory and motor neuropathy of the trigeminal nerve due to trauma is quite rare. Furthermore, there have been no detailed reports on occlusal abnormalities and trismus associated with post-traumatic trigeminal motor neuropathy. Here, the authors report a case of trigeminal motor neuropathy and trigeminal sensory neuropathy in all 3 divisions caused by an orbital stab wound. During kendo practice, a 61-year-old man was injured in his right medial canthus with the splinter of a broken bamboo sword. Imaging examinations did not show a brain injury or orbital bone fracture...
January 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/27861184/catecholaminergic-polymorphic-ventricular-tachycardia-a-model-for-genotype-specific-therapy
#13
Thomas M Roston, Filip Van Petegem, Shubhayan Sanatani
PURPOSE OF REVIEW: Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a life-threatening syndrome defined by exercise-induced or emotion-induced ventricular arrhythmias, typically caused by gain-of-function mutations in RYR2-encoded ryanodine receptor-2 (RyR2). This review will discuss recent advances and ongoing challenges in devising genotype-specific CPVT therapies. RECENT FINDINGS: CPVT patients were once universally thought to be at high risk of sudden death; however, as more cases emerge, CPVT is being re-defined as a complex syndrome of variable expressivity...
January 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/27826330/management-of-patients-with-long-qt-syndrome
#14
REVIEW
Yongkeun Cho
Long QT syndrome (LQTS) is a rare cardiac channelopathy associated with syncope and sudden death due to torsades de pointes and ventricular fibrillation. Syncope and sudden death are frequently associated with physical and emotional stress. Management of patients with LQTS consists of life-style modification, β-blockers, left cardiac sympathetic denervation (LCSD), and implantable cardioverter-defibrillator (ICD) implantation. Prohibition of competitive exercise and avoidance of QT-prolonging drugs are important issues in life-style modification...
November 2016: Korean Circulation Journal
https://www.readbyqxmd.com/read/27772769/cardiovascular-dysfunction-in-untreated-parkinson-s-disease-a-multi-modality-assessment
#15
Stefano Strano, Alessandra Fanciulli, Massimiliano Rizzo, Paolo Marinelli, Paolo Palange, Dorina Tiple, Giuseppe De Vincentis, Giovanni Calcagnini, Federica Censi, Giuseppe Meco, Carlo Colosimo
BACKGROUND: The clinical presentation of Parkinson's disease (PD) includes a wide spectrum of non-motor features, including cardiovascular autonomic failure. OBJECTIVE: To evaluate cardiovascular autonomic status and cardiac functional capacity in drug-naïve PD patients. METHODS: 18 newly-diagnosed PD patients underwent laboratory cardiovascular autonomic function tests using power spectral analysis of the R-R interval, blood pressure (BP) short-term variability and non-invasive baroreflex sensitivity (BRS)...
November 15, 2016: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/27761157/current-topics-in-catecholaminergic-polymorphic-ventricular-tachycardia
#16
REVIEW
Naokata Sumitomo
Catecholaminergic polymorphic ventricular tachycardia (CPVT) is induced by emotions or exercise in patients without organic heart disease and may be polymorphic or bidirectional in nature. The prognosis of CPVT is not good, and therefore prevention of sudden death is of utmost importance. Genetic variants of CPVT include RyR2, CASQ2, CALM2, TRD, and possibly KCNJ2 and ANK2 gene mutations. Hypotheses that suggest the causes of CPVT include weakened binding of FKBP12.6 and RyR2, a store overload-induced Ca(2+) release (SOICR), unzipping of intramolecular domain interactions in RyR2, and molecular and functional abnormalities caused by mutations in the CASQ2 gene...
October 2016: Journal of Arrhythmia
https://www.readbyqxmd.com/read/27754015/br-04-1management-of-treatment-resistant-hypertension
#17
David John Webb
Treatment-resistant hypertension (TRH) is defined as the failure to achieve an office BP target of <140/90 mmHg (<130/80 mmHg in patients with chronic kidney disease (CKD) or diabetes) in patients with hypertension (HT), despite adherence to at least 3 antihypertensive medications at optimal tolerated doses, ideally including a diuretic (Calhoun et al., Circulation 2008). TRH identifies patients with hard-to-treat HT, who might benefit from specialist investigation and treatment. Although some studies put the prevalence of TRH as >10%, these levels may be inflated by white-coat hypertension and poor adherence...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27681426/rescue-of-metabolic-alterations-in-ar113q-skeletal-muscle-by-peripheral-androgen-receptor-gene-silencing
#18
Elisa Giorgetti, Zhigang Yu, Jason P Chua, Ryosuke Shimamura, Lili Zhao, Fan Zhu, Sriram Venneti, Maria Pennuto, Yuanfang Guan, Gene Hung, Andrew P Lieberman
Spinal and bulbar muscular atrophy (SBMA), a progressive degenerative disorder, is caused by a CAG/glutamine expansion in the androgen receptor (polyQ AR). Recent studies demonstrate that skeletal muscle is an important site of toxicity that contributes to the SBMA phenotype. Here, we sought to identify critical pathways altered in muscle that underlie disease manifestations in AR113Q mice. This led to the unanticipated identification of gene expression changes affecting regulators of carbohydrate metabolism, similar to those triggered by denervation...
September 27, 2016: Cell Reports
https://www.readbyqxmd.com/read/27676738/the-winged-scapula-a-muscle-rupture-or-a-nerve-paralysis-a-case-series
#19
Sana Salah, Houda Migaou, Zied Belaaj, Soumaya Boudokhane, Anis Jellad, Abderrazak Abid, Zohra Ben Salah Frih
OBJECTIVE: Winging of the scapula has a variety of causes and a variable prognosis. It contributes to a disruption of the scapulohumeral rhythm with a decreased flexion and abduction of the upper extremity and a source of a considerable pain. This condition can affect the ability to perform activities of daily living. The most common cause of scapula winging is serratus anterior paralysis resulting from a lesion of the long thoracic nerve. The rupture of the muscle itself remains uncommon...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27648746/does-anterior-cruciate-ligament-innervation-matter-for-joint-function-and-development-of-osteoarthritis
#20
Christopher V Nagelli, James L Cook, Kei Kuroki, Chantelle Bozynski, Richard Ma, Timothy E Hewett
Complications following anterior cruciate ligament (ACL) injury and reconstruction that include chronic dysfunction, second ACL injury, and posttraumatic osteoarthritis (OA) may be interrelated and stem from the inability to fully restore native ACL integrity and function. The loss of ACL sensory input following injury may significantly contribute to joint dysfunction. We developed a novel preclinical animal model to assess the contributions of ACL sensory afferents to knee joint function and health. We hypothesized that ACL sensory denervation would manifest in knee joint dysfunction and development of early OA...
September 20, 2016: Journal of Knee Surgery
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