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https://www.readbyqxmd.com/read/28432901/neuromuscular-rate-of-force-development-deficit-in-parkinson-disease
#1
Kelley G Hammond, Ronald F Pfeiffer, Mark S LeDoux, Brian K Schilling
BACKGROUND: Bradykinesia and reduced neuromuscular force exist in Parkinson disease. The interpolated twitch technique has been used to evaluate central versus peripheral manifestations of neuromuscular strength in healthy, aging, and athletic populations, as well as moderate to advanced Parkinson disease, but this method has not been used in mild Parkinson disease. This study aimed to evaluate quadriceps femoris rate of force development and quantify potential central and peripheral activation deficits in individuals with Parkinson disease...
April 11, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28432730/assessment-of-voluntary-deep-inspiration-breath-hold-with-cine-imaging-for-breast-radiotherapy
#2
Reuben Patrick Estoesta, Lani Attwood, Diana Naehrig, Elizabeth Claridge-Mackonis, David Odgers, Darren Martin, Melissa Pham, Joanne Toohey, Susan Carroll
Deep Inspiration Breath-Hold (DIBH) techniques for breast cancer radiation therapy (RT) have reduced cardiac dose compared to Free Breathing (FB). Recently, a voluntary deep inspiration breath-hold (vDIBH) technique was established using in-room lasers and skin tattoos to monitor breath-hold. An in-house quality assessment of positional reproducibility during RT delivery with vDIBH in patients with left-sided breast cancer was evaluated. The electronic portal imaging device (EPID) was used in cinematographic (CINE) mode to capture a sequence of images during beam delivery...
April 22, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28432420/sex-differences-in-neuromuscular-function-after-repeated-eccentric-contractions-of-the-knee-extensor-muscles
#3
Andrea Lee, Jake Baxter, Claire Eischer, Matt Gage, Sandra Hunter, Tejin Yoon
PURPOSE: This study examined the mechanisms for force and power reduction during and up to 48 h after maximal eccentric contractions of the knee extensor muscles in young men and women. METHODS: 13 men (22.8 ± 2.6 years) and 13 women (21.6 ± 2.2 years) performed 150 maximal effort eccentric contractions (5 sets of 30) with the knee extensor muscles at 60° s(-1). Maximal voluntary isometric contractions (MVIC) and maximal voluntary concentric contractions (MVCC) were performed before and after the 150 eccentric contractions...
April 21, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28432009/the-lateral-hypothalamus-to-lateral-habenula-projection-but-not-the-ventral-pallidum-to-lateral-habenula-projection-regulates-voluntary-ethanol-consumption
#4
Chandni Sheth, Teri M Furlong, Kristen A Keefe, Sharif A Taha
The lateral habenula (LHb) is an epithalamic brain region implicated in aversive processing via negative modulation of midbrain dopamine (DA) and serotonin (5-HT) systems. Given the role of the LHb in inhibiting DA and 5-HT systems, it is thought to be involved in various psychiatric pathologies, including drug addiction. In support, it has been shown that LHb plays a critical role in cocaine- and ethanol-related behaviors, most likely by mediating drug-induced aversive conditioning. In our previous work, we showed that LHb lesions increased voluntary ethanol consumption and operant ethanol self-administration and blocked yohimbine-induced reinstatement of ethanol self-administration...
April 18, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28431693/the-society-of-thoracic-surgeons-general-thoracic-surgery-database-2017-update-on-outcomes-and-quality
#5
Christopher W Seder, Daniel P Raymond, Cameron D Wright, Henning A Gaissert, Andrew C Chang, Sydney Clinton, Susan Becker, Felix G Fernandez, Benjamin D Kozower
The Society of Thoracic Surgeons General Thoracic Surgery Database (STS GTSD) is a voluntary effort that provides participants with risk-adjusted semiannual performance reports that allow comparison of institutional outcomes against national benchmarks. With nearly 1,000 surgeons contributing data from more than 300 centers across North America, the STS GTSD now includes almost a half million cases. In 2016, updated risk models for lung resection and esophagectomy for cancer were reported, and composite quality measures for lobectomy and esophagectomy were developed...
May 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28431383/protocolized-hyperventilation-enhances-electroconvulsive-therapy
#6
Aida de Arriba-Arnau, Antonia Dalmau, Virginia Soria, Neus Salvat-Pujol, Carmina Ribes, Ana Sánchez-Allueva, José Manuel Menchón, Mikel Urretavizcaya
BACKGROUND: Hyperventilation is recommended in electroconvulsive therapy (ECT) to enhance seizures and to increase patients' safety. However, more evidence is needed regarding its effects and the optimum method of application. METHODS: This prospective study involving 21 subjects compared two procedures, protocolized hyperventilation (PHV) and hyperventilation as usual (HVau), applied to the same patient in two consecutive sessions. Transcutaneous partial pressure of carbon dioxide (TcPCO2) was measured throughout all sessions...
April 13, 2017: Journal of Affective Disorders
https://www.readbyqxmd.com/read/28431323/transcranial-magnetic-stimulation-in-developmental-stuttering-relations-with-previous-neurophysiological-research-and-future-perspectives
#7
REVIEW
P Busan, P P Battaglini, M Sommer
Developmental stuttering (DS) is a disruption of the rhythm of speech, and affected people may be unable to execute fluent voluntary speech. There are still questions about the exact causes of DS. Evidence suggests there are differences in the structure and functioning of motor systems used for preparing, executing, and controlling motor acts, especially when they are speech related. Much research has been obtained using neuroimaging methods, ranging from functional magnetic resonance to diffusion tensor imaging and electroencephalography/magnetoencephalography...
April 3, 2017: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/28430979/effect-of-physical-exercise-and-acute-escitalopram-on-the-excitability-of-brain-monoamine-neurons-in-vivo-electrophysiological-study-in-rats
#8
Eliyahu Dremencov, Kristína Csatlósová, Barbora Durišová, Lucia Lapínová, Lubica Lacinová, Daniela Ježová
Background: The antidepressant effect of physical exercise has been reported in several clinical and animal studies. Since serotonin (5-HT), norepinephrine and dopamine play a central role in depression, it is possible that the beneficial effects of physical exercise are mediated via monoamine pathways. This study investigates the effects of voluntary wheel running (VWR) on the excitability of monoamine neurons. Material and methods: Male Sprague-Dawley rats were used in the study...
April 18, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28430937/high-sugar-but-not-high-fat-food-activates-supraoptic-oxytocin-neurones-in-the-male-rat
#9
Catherine Hume, Nancy Sabatier, John Menzies
Oxytocin is a potent anorexigen and is believed to have a role in satiety signalling. We developed rat models to study the activity of oxytocin neurones in response to voluntary consumption or oral gavage of foods using c-Fos immunohistochemistry and in vivo electrophysiology.Using c-Fos expression as an indirect marker of neural activation, we showed that the percentage of magnocellular oxytocin neurones expressing c-Fos increased with voluntary consumption of sweetened condensed milk (SCM). To model the effect of food in the stomach, we gavaged anaesthetised rats with SCM...
April 19, 2017: Endocrinology
https://www.readbyqxmd.com/read/28430128/environmental-tobacco-smoke-exposure-and-smoke-free-rules-in-homes-among-socially-disadvantaged-populations-in-poland
#10
Katarzyna Milcarz, Leokadia Bak-Romaniszyn, Dorota Kaleta
This study aims to examine the prevalence of exposure to environmental tobacco smoke (ETS) in homes among socially-disadvantaged populations in Poland, along with the prevalence and correlates of voluntary implementation of smoke-free home rules. Data concerning 1617 respondents from a cross-sectional study completed in the Piotrkowski District were used, which was part of the "Reducing Social Inequalities in Health" program. Overall, 19.4% of the respondents declared exposure to ETS at home. In the non-smokers group, 15...
April 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28429885/intravenous-self-administration-of-benzydamine-a-non-steroidal-anti-inflammatory-drug-with-a-central-cannabinoidergic-mechanism-of-action
#11
Riccardo Avvisati, Maria Meringolo, Emiliana Stendardo, Elisa Malavasi, Silvia Marinelli, Aldo Badiani
Benzydamine (BZY) is a non-steroidal anti-inflammatory drug used for the topical treatment of inflammations of the oral and vaginal mucosae. Virtually nothing is known about the central pharmacological actions of BZY. Yet there are reports of voluntary systemic overdosage of BZY in drug addicts, resulting in a euphoric, hallucinatory state. In the present study, we investigated the reinforcing properties of BZY in a rat self-administration paradigm. We found that BZY has a powerful reinforcing effect and that this effect is greatly facilitated in animals that already had substance experience, having previously self-administered heroin and cocaine, indicating cross sensitization between BZY and other common drugs of abuse...
April 21, 2017: Addiction Biology
https://www.readbyqxmd.com/read/28429109/associations-of-maximal-voluntary-isometric-hip-extension-torque-with-muscle-size-of-hamstring-and-gluteus-maximus-and-intra-abdominal-pressure
#12
Kota Tayashiki, Kosuke Hirata, Kiraku Ishida, Hiroaki Kanehisa, Naokazu Miyamoto
PURPOSE: Muscle size of the hamstring and gluteus maximus (GM) as well as intra-abdominal pressure (IAP) are considered as factors affecting the torque development during hip extension. This study examined the associations of torque development during maximal voluntary isometric hip extension with IAP and muscle size of the hamstring and GM. METHODS: Anatomical cross-sectional area (ACSA) of the hamstring and thickness of GM were determined in 20 healthy young males using an ultrasonography apparatus (Experiment 1)...
April 20, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28428836/muscle-function-and-fatigability-of-trunk-flexors-in-males-and-females
#13
Rita E Deering, Jonathon W Senefeld, Tatyana Pashibin, Donald A Neumann, Sandra K Hunter
BACKGROUND: Optimal function of the abdominal muscles is necessary for several life functions including lifting and carrying tasks. Sex differences in strength and fatigability are established for many limb muscles and back extensor muscles, but it is unknown if sex differences exist for the abdominal muscles despite their functional importance. METHODS: Eighteen females (24.3 ± 4.8 years) and 15 males (24.1 ± 6.6 years) performed (1) isometric trunk flexion maximal voluntary contractions (MVCs) in a range of trunk positions to establish a torque-angle curve and (2) submaximal (50% MVC), intermittent isometric contraction (6 s on, 4 s off) until task failure to determine fatigability of the trunk flexor muscles...
2017: Biology of Sex Differences
https://www.readbyqxmd.com/read/28428152/convenience-food-with-environmentally-sustainable-attributes-a-consumer-perspective
#14
Stefanella Stranieri, Elena Claire Ricci, Alessandro Banterle
The use of chemicals in agriculture poses risks on both human health and the environment. Regulatory measures, both mandatory and voluntary, have been introduced to promote a reduction in the use of pesticides. The proliferation of such standards is related to the gradual shift of consumer preferences towards foods with reduced negative health and environmental impacts. Beside consumer demand for sustainable food products, convenience foods are also assuming an increasingly important role in developed countries...
April 17, 2017: Appetite
https://www.readbyqxmd.com/read/28427992/invasive-haemophilus-influenzae-infections-in-children-in-kamikawa-subprefecture-hokkaido-japan-2006-2015-the-effectiveness-of-h-%C3%A2-influenzae-type-b-vaccine
#15
Hiroshi Sakata, Yoko Adachi, Miyuki Morozumi, Kimiko Ubukata
We evaluated 24 children with invasive Haemophilus influenzae infections between 2006 and 2015 in Kamikawa subprefecture of Hokkaido, Japan. The most frequent disease was pneumonia in 12 cases (50.0%), followed by meningitis in 7 (29.2%) and bacteremia in 5 (20.8%). Patients ranged in age from 3 months to 12 years of age. Seventeen (70.8%) of the total were less than 2 years old. The incidence rate of H. influenzae infection varied from 15.1 to 36.3 per 100,000 population in the Kamikawa area during the period from 2006 through 2011...
April 17, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28427691/spastic-paretic-hemifacial-contracture-as-a-presenting-feature-of-multiple-sclerosis
#16
Georgios Koutsis, Marianthi Breza, Maria-Eleftheria Evangelopoulos, Maria Anagnostouli, Elisavet Andreadou, Georgios Karagiorgis, Panagiotis Kokotis, Costas Kilidireas, Nikolaos Karandreas
BACKGROUND: Spastic paretic hemifacial contracture (SPHC) is characterized by sustained unilateral contraction of the facial muscles associated with mild ipsilateral facial paresis. Rarely described in the context of multiple sclerosis (MS), it has never been reported as presenting symptom of MS. CASE REPORTS: Two patients developed SPHC within the context of a clinically isolated syndrome suggestive of MS. EMG revealed continuous resting activity of irregularly firing motor unit potentials, associated with impaired recruitment upon voluntary contraction...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28427396/demdata-the-austrian-czech-institutional-long-term-care-project-design-and-protocol-of-a-two-centre-cross-sectional-study
#17
Stefanie Auer, Elisabeth Linsmayer, Anna Beránková, Patrick Pascher, Bernadette Firlinger, Doris Prischl, Paulina Ratajczak, Edith Span, Iva Holmerova
BACKGROUND: The organization of long-term care is one of the main challenges of public health and health policies in Europe and worldwide, especially in terms of care concepts for people with dementia. In Austria and the Czech Republic the majority of elderly institutionalized persons with dementia are cared for in nursing homes. It is however unclear, how many persons living in nursing homes in Austria and in the Czech Republic are suffering from cognitive impairment and dementia. In addition, basic information on the nutritional status, the status of mobility and the medication prescription patterns are often missing...
April 20, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28427305/neuromechanical-adaptations-during-a-robotic-powered-exoskeleton-assisted-walking-session
#18
Arvind Ramanujam, Christopher M Cirnigliaro, Erica Garbarini, Pierre Asselin, Rakesh Pilkar, Gail F Forrest
OBJECTIVE: To evaluate gait parameters and neuromuscular profiles of exoskeleton-assisted walking under Max Assist condition during a single-session for; (i) able bodied (AB) individuals walking assisted with (EXO) and without (non-EXO) a powered exoskeleton, (ii) non-ambulatory SCI individuals walking assisted with a powered exoskeleton. DESIGN: Single-session. SETTING: Motion analysis laboratory. PARTICIPANTS: Four AB individuals and four individuals with SCI...
April 20, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28427290/a-real-time-method-for-decoding-the-neural-drive-to-muscles-using-single-channel-intra-muscular-emg-recordings
#19
Saeed Karimimehr, Hamid Reza Marateb, Silvia Muceli, Marjan Mansourian, Miguel Angel Mañanas, Dario Farina
The neural command from motor neurons to muscles - sometimes referred to as the neural drive to muscle - can be identified by decomposition of electromyographic (EMG) signals. This approach can be used for inferring the voluntary commands in neural interfaces in patients with limb amputations. This paper proposes for the first time an innovative method for fully automatic and real-time intramuscular EMG (iEMG) decomposition. The method is based on online single-pass density-based clustering and adaptive classification of bivariate features, using the concept of potential measure...
March 20, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/28426670/mice-expressing-a-hyper-sensitive-form-of-the-cb1-cannabinoid-receptor-cb1-show-modestly-enhanced-alcohol-preference-and-consumption
#20
David J Marcus, Angela N Henderson-Redmond, Maciej Gonek, Michael L Zee, Jill C Farnsworth, Randa A Amin, Mary-Jeanette Andrews, Brian J Davis, Ken Mackie, Daniel J Morgan
We recently characterized S426A/S430A mutant mice expressing a desensitization-resistant form of the CB1 receptor. These mice display an enhanced response to endocannabinoids and ∆9-THC. In this study, S426A/S430A mutants were used as a novel model to test whether ethanol consumption, morphine dependence, and reward for these drugs are potentiated in mice with a "hyper-sensitive" form of CB1. Using an unlimited-access, two-bottle choice, voluntary drinking paradigm, S426A/S430A mutants exhibit modestly increased intake and preference for low (6%) but not higher concentrations of ethanol...
2017: PloS One
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