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https://www.readbyqxmd.com/read/29656427/exercise-training-abrogates-age-dependent-loss-of-hypothalamic-oxytocinergic-circuitry-and-maintains-high-parasympathetic-activity
#1
Carla R Santos, Adriana Ruggeri, Alexandre Ceroni, Lisete C Michelini
Neuroanatomical studies associating neuronal tract tracing and immunohistochemistry identified reciprocal (ascending noradrenergic/descending oxytocinergic, OTergic) connections between brainstem cardiovascular nuclei and the paraventricular hypothalamic nucleus (PVN). Previous functional studies indicated that exercise training (T) augmented the expression/activity of OTergic pathway and improve the autonomic control of the heart. Knowing that ageing is associated with autonomic dysfunction and sinoaortic denervation blocked T-induced beneficial effects, we hypothesized that T was able to reduce age-dependent impairment by improving the afferent signaling to PVN and augmenting OTergic modulation of cardiovascular control...
April 14, 2018: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29614943/primary-care-management-of-non-specific-low-back-pain-key-messages-from-recent-clinical-guidelines
#2
Matheus Almeida, Bruno Saragiotto, Bethan Richards, Chris G Maher
Research in the past decade supports some major changes to the primary care management of non-specific low back pain (LBP). The present article summarises recommendations from recently published United Kingdom, Danish, Belgian and United States guidelines to alert readers to the important changes in recommendations for management, and the recommendations from previous guidelines that remain unchanged. Main recommendations: Use a clinical assessment to triage patients with LBP. Further diagnostic workup is only required for the small number of patients with suspected serious pathology...
April 2, 2018: Medical Journal of Australia
https://www.readbyqxmd.com/read/29611171/percutaneous-renal-artery-denervation-in-patients-with-chronic-systolic-heart-failure-a-randomized-controlled-trial
#3
Jun-Qing Gao, Wei Yang, Zong-Jun Liu
B: ACKGROUND: Renal denervation (RDN) is as an effective treatment for heart failure, but its effects on cardiac function of patients with heart failure (HF) are not well documented. Here, the aim was to investigate RDN's effect on patients with chronic systolic HF, by conducting a single-center, prospective, randomized, and controlled study. M: ETHODS: Sixty patients with chronic systolic HF were randomly assigned to the RDN or control groups, receiving percutaneous catheter-based RDN with radiofrequency ablation and drug treatment respectively...
April 3, 2018: Cardiology Journal
https://www.readbyqxmd.com/read/29610596/catecholaminergic-polymorphic-ventricular-tachycardia-looking-to-the-future
#4
Andreea Elena Velcea, Calin Siliste, Dragos Vinereanu
Catecholaminergic polymorphic ventricular tachycardia (CPVT) is a rare inheritable cardiac disorder, characterized by polymorphic ventricular tachycardia (PVT) or bidirectional ventricular tachycardia, triggered by adrenergic stress, and manifested most frequently as syncope or sudden cardiac death. The disease has a heterogeneous genetic basis, with mutations in the genes encoding the ryanodine and calsequestrin channels accounting for the majority of cases. The diagnosis of CPVT is established in individuals with polymorphic ventricular premature beats, PVT or bidirectional ventricular tachycardia documented during exercise or adrenergic stress, who have a structurally normal heart and normal resting ECG...
December 2017: Mædica
https://www.readbyqxmd.com/read/29515451/physical-exercise-induced-cardiovascular-and-thermoregulatory-adjustments-are-impaired-in-rats-subjected-to-cutaneous-artery-denervation
#5
Milene R Malheiros-Lima, Washington Pires, Ivana A T Fonseca, Julliane V Joviano-Santos, Anderson J Ferreira, Cândido C Coimbra, Nilo R V Lima, Samuel P Wanner
This study aimed to investigate the chronic effects of caudal artery denervation on morphometric parameters of the tail vascular smooth muscle and on physical exercise-induced thermoregulatory and cardiovascular adjustments in rats. Male Wistar rats were subjected to caudal artery denervation or the sham procedure. Approximately 26-28 days after these procedures, their thermoregulatory and cardiovascular parameters were evaluated at rest and during or following a fatiguing treadmill run. At the end of the experiments, the rats were euthanized, and samples of their tails were removed to evaluate morphometric parameters of the vascular smooth muscle surrounding the caudal artery...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29512306/preventing-muscle-wasting-by-osteoporosis-drug-alendronate-in-vitro-and-in-myopathy-models-via-sirtuin-3-down-regulation
#6
Hsien-Chun Chiu, Chen-Yuan Chiu, Rong-Sen Yang, Ding-Cheng Chan, Shing-Hwa Liu, Chih-Kang Chiang
BACKGROUND: A global consensus on the loss of skeletal muscle mass and function in humans refers as sarcopenia and cachexia including diabetes, obesity, renal failure, and osteoporosis. Despite a current improvement of sarcopenia or cachexia with exercise training and supportive therapies, alternative and specific managements are needed to discover for whom are unable or unwilling to embark on these treatments. Alendronate is a widely used drug for osteoporosis in the elderly and postmenopausal women...
March 6, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29511649/association-of-sericin-and-swimming-on-the-phenotype-motor-plate-and-functionality-of-the-denervated-plantar-muscle-of-wistar-rats
#7
André Santana, Jean Carlos Debastiani, Regina Inês Kunz, Pamela Buratti, Rose Meire Costa Brancalhão, Lucinéia de Fátima Chasko Ribeiro, Márcia Miranda Torrejais, Gladson Ricardo Flor Bertolini
Physical exercise may help maintain muscle properties and functional improvement after peripheral nerve lesion, which may be enhanced by using biocompatible substances, such as sericin. The aim of this study was analyse the effect of sericin associated with swimming exercise on the phenotype, innervation, and functionality of the plantar muscle of Wistar rats. Forty randomly divided adult rats were used in five groups of eight animals: control, injury, sericin, exercise, exercise and sericin. The application of sericin was done on the spot, 100 μL, shortly after nerve compression...
February 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29487995/treatment-of-atrial-fibrillation-in-patients-with-enhanced-sympathetic-tone-by-pulmonary-vein-isolation-or-pulmonary-vein-isolation-and-renal-artery-denervation-clinical-background-and-study-design-the-asaf-trial-ablation-of-sympathetic-atrial-fibrillation
#8
Mark R de Jong, Annemiek F Hoogerwaard, Ahmet Adiyaman, Jaap Jan J Smit, Anand R Ramdat Misier, Jan-Evert Heeg, Boudewijn A A M van Hasselt, Isabelle C Van Gelder, Harry J G M Crijns, Ignacio Fernández Lozano, Jorge E Toquero Ramos, F Javier Alzueta, Borja Ibañez, José M Rubio, Fernando Arribas, José M Porres Aracama, Josep Brugada, Lluís Mont, Arif Elvan
BACKGROUND: Hypertension is an important, modifiable risk factor for the development of atrial fibrillation (AF). Even after pulmonary vein isolation (PVI), 20-40% experience recurrent AF. Animal studies have shown that renal denervation (RDN) reduces AF inducibility. One clinical study with important limitations suggested that RDN additional to PVI could reduce recurrent AF. OBJECTIVE: The goal of this multicenter randomized controlled study is to investigate whether RDN added to PVI reduces AF recurrence...
February 27, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/29357501/effects-of-aging-and-parkinson-s-disease-on-motor-unit-remodeling-influence-of-resistance-exercise-training
#9
Neil A Kelly, Kelley G Hammond, C Scott Bickel, Samuel T Windham, S Craig Tuggle, Marcas M Bamman
Aging muscle atrophy is in part a neurodegenerative process revealed by denervation/reinnervation events leading to motor unit remodeling (i.e., myofiber type grouping). However, this process and its physiological relevance are poorly understood, as is the wide-ranging heterogeneity among aging humans. Here, we attempted to address 1) the relation between myofiber type grouping and molecular regulators of neuromuscular junction (NMJ) stability; 2) the impact of motor unit remodeling on recruitment during submaximal contractions; 3) the prevalence and impact of motor unit remodeling in Parkinson's disease (PD), an age-related neurodegenerative disease; and 4) the influence of resistance exercise training (RT) on regulators of motor unit remodeling...
April 1, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29203713/therapeutic-potential-of-heat-shock-protein-induction-for-muscular-dystrophy-and-other-muscle-wasting-conditions
#10
REVIEW
Savant S Thakur, Kristy Swiderski, James G Ryall, Gordon S Lynch
Duchenne muscular dystrophy is the most common and severe of the muscular dystrophies, a group of inherited myopathies caused by different genetic mutations leading to aberrant expression or complete absence of cytoskeletal proteins. Dystrophic muscles are prone to injury, and regenerate poorly after damage. Remorseless cycles of muscle fibre breakdown and incomplete repair lead to progressive and severe muscle wasting, weakness and premature death. Many other conditions are similarly characterized by muscle wasting, including sarcopenia, cancer cachexia, sepsis, denervation, burns, and chronic obstructive pulmonary disease...
January 19, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29191837/age-dependent-increase-in-angiopoietin-like-protein-2-accelerates-skeletal-muscle-loss-in-mice
#11
Jiabin Zhao, Zhe Tian, Tsuyoshi Kadomatsu, Peiyu Xie, Keishi Miyata, Taichi Sugizaki, Motoyoshi Endo, Shunshun Zhu, Haoqiu Fan, Haruki Horiguchi, Jun Morinaga, Kazutoyo Terada, Tatsuya Yoshizawa, Kazuya Yamagata, Yuichi Oike
Skeletal muscle atrophy, or sarcopenia, is commonly observed in older individuals and in those with chronic disease and is associated with decreased quality of life. There is recent medical and broad concern that sarcopenia is rapidly increasing worldwide as populations age. At present, strength training is the only effective intervention for preventing sarcopenia development, but it is not known how this exercise regimen counteracts this condition. Here, we report that expression of the inflammatory mediator angiopoietin-like protein 2 (ANGPTL2) increases in skeletal muscle of aging mice...
February 2, 2018: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29163139/exercise-induced-neuroprotection-of-the-nigrostriatal-dopamine-system-in-parkinson-s-disease
#12
REVIEW
Lijuan Hou, Wei Chen, Xiaoli Liu, Decai Qiao, Fu-Ming Zhou
Epidemiological studies indicate that physical activity and exercise may reduce the risk of developing Parkinson's disease (PD), and clinical observations suggest that physical exercise can reduce the motor symptoms in PD patients. In experimental animals, a profound observation is that exercise of appropriate timing, duration, and intensity can reduce toxin-induced lesion of the nigrostriatal dopamine (DA) system in animal PD models, although negative results have also been reported, potentially due to inappropriate timing and intensity of the exercise regimen...
2017: Frontiers in Aging Neuroscience
https://www.readbyqxmd.com/read/29062100/irisin-is-a-pro-myogenic-factor-that-induces-skeletal-muscle-hypertrophy-and-rescues-denervation-induced-atrophy
#13
Musarrat Maisha Reza, Nathiya Subramaniyam, Chu Ming Sim, Xiaojia Ge, Durgalakshmi Sathiakumar, Craig McFarlane, Mridula Sharma, Ravi Kambadur
Exercise induces expression of the myokine irisin, which is known to promote browning of white adipose tissue and has been shown to mediate beneficial effects following exercise. Here we show that irisin induces expression of a number of pro-myogenic and exercise response genes in myotubes. Irisin increases myogenic differentiation and myoblast fusion via activation of IL6 signaling. Injection of irisin in mice induces significant hypertrophy and enhances grip strength of uninjured muscle. Following skeletal muscle injury, irisin injection improves regeneration and induces hypertrophy...
October 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/29031330/histological-changes-in-the-proximal-suspensory-ligament-after-neurectomy-of-the-deep-branch-of-the-lateral-palmar-nerve-of-horses-with-induced-proximal-suspensory-desmitis
#14
Gabriela Lopez-Navarro, Francisco J Trigo-Tavera, Alejandro Rodriguez-Monterde, Gabriel Gutierrez-Ospina, Miguel Arechavaleta-Velasco, John Schumacher, James Schumacher
Proximal suspensory desmitis (PSD) is a common cause of lameness in the pelvic limb, but could also affect the thoracic limb of competing and non-competing horses. Most horses diagnosed with PSD in a thoracic limb respond to rest followed by controlled exercise, but in a small percentage of affected horses, lameness persists. In one study, four horses chronically lame because of PSD in a thoracic limb became sound after neurectomy of the deep branch of the lateral palmar nerve (DBLPaN), which innervates the proximal aspect of the suspensory ligament (SL; Guasco et al...
September 2017: Veterinary Journal
https://www.readbyqxmd.com/read/29018938/heart-failure-with-preserved-ejection-fraction-current-management-and-future-strategies-expert-opinion-on-the-behalf-of-the-nucleus-of-the-heart-failure-working-group-of-the-german-society-of-cardiology-dkg
#15
REVIEW
Carsten Tschöpe, Christoph Birner, Michael Böhm, Oliver Bruder, Stefan Frantz, Andreas Luchner, Lars Maier, Stefan Störk, Behrouz Kherad, Ulrich Laufs
About 50% of all patients suffering from heart failure (HF) exhibit a reduced ejection fraction (EF ≤ 40%), termed HFrEF. The others may be classified into HF with midrange EF (HFmrEF 40-50%) or preserved ejection fraction (HFpEF, EF ≥ 50%). Presentation and pathophysiology of HFpEF is heterogeneous and its management remains a challenge since evidence of therapeutic benefits on outcome is scarce. Up to now, there are no therapies improving survival in patients with HFpEF. Thus, the treatment targets symptom relief, quality of life and reduction of cardiac decompensations by controlling fluid retention and managing risk factors and comorbidities...
January 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28935680/cardiac-events-during-competitive-recreational-and-daily-activities-in-children-and-adolescents-with-long-qt-syndrome
#16
Kristina D Chambers, Virginie Beausejour Ladouceur, Mark E Alexander, Robyn J Hylind, Laura Bevilacqua, Douglas Y Mah, Vassilios Bezzerides, John K Triedman, Edward P Walsh, Dominic J Abrams
BACKGROUND: The 2005 Bethesda Conference Guidelines advise patients with long QT syndrome against competitive sports. We assessed cardiac event rates during competitive and recreational sports, and daily activities among treated long QT syndrome patients. METHODS AND RESULTS: Long QT syndrome patients aged ≥4 years treated with anti-adrenergic therapy were included. Demographics included mechanism of presentation, corrected QT interval pretreatment, symptom history, medication compliance, and administration of QT-prolonging medications...
September 21, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28903327/pericardial-effusion-is-correlated-with-clinical-outcome-after-pulmonary-artery-denervation-for-pulmonary-arterial-hypertension
#17
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...
August 15, 2017: Oncotarget
https://www.readbyqxmd.com/read/28813700/regenerative-medicine-approaches-for-age-related-muscle-loss-and-sarcopenia-a-mini-review
#18
Juan Diego Naranjo, Jenna L Dziki, Stephen F Badylak
Sarcopenia is a complex and multifactorial disease that includes a decrease in the number, structure and physiology of muscle fibers, and age-related muscle mass loss, and is associated with loss of strength, increased frailty, and increased risk for fractures and falls. Treatment options are suboptimal and consist of exercise and nutrition as the cornerstone of therapy. Current treatment principles involve identification and modification of risk factors to prevent the disease, but these efforts are of limited value to the elderly individuals currently affected by sarcopenia...
2017: Gerontology
https://www.readbyqxmd.com/read/28807894/advances-in-the-diagnosis-and-management-of-neck-pain
#19
REVIEW
Steven P Cohen, W Michael Hooten
Neck pain imposes a considerable personal and socioeconomic burden-it is one of the top five chronic pain conditions in terms of prevalence and years lost to disability-yet it receives a fraction of the research funding given to low back pain. Although most acute episodes resolve spontaneously, more than a third of affected people still have low grade symptoms or recurrences more than one year later, with genetics and psychosocial factors being risk factors for persistence. Nearly half of people with chronic neck pain have mixed neuropathic-nociceptive symptoms or predominantly neuropathic symptoms...
August 14, 2017: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/28740219/role-of-p66shc-in-skeletal-muscle-function
#20
Veronica Granatiero, Gaia Gherardi, Matteo Vianello, Elsa Salerno, Erika Zecchini, Luana Toniolo, Giorgia Pallafacchina, Marta Murgia, Bert Blaauw, Rosario Rizzuto, Cristina Mammucari
p66shc is a growth factor adaptor protein that contributes to mitochondrial ROS production. p66shc is involved in insulin signaling and its deletion exerts a protective effect against diet-induced obesity. In light of the role of skeletal muscle activity in the control of systemic metabolism and obesity, we investigated which is the contribution of p66shc in regulating muscle structure and function. Here, we show that p66shc(-/-) muscles are undistinguishable from controls in terms of size, resistance to denervation-induced atrophy, and force...
July 24, 2017: Scientific Reports
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