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https://www.readbyqxmd.com/read/29454120/optic-nerve-atrophy-due-to-long-standing-compression-by-planum-sphenoidale-meningioma
#1
Alberto Di Somma, Ariel Matias Kaen, Eugenio Cárdenas Ruiz-Valdepeñas, Luigi Maria Cavallo
In this study we report an uncommon endoscopic endonasal image of an atrophic optic nerve as seen after surgical removal of a suprasellar meningioma. The peculiarity of this case is the long-lasting underestimated ocular symptomatology of the patient who reported a 15-year history of impairment of vision on her left eye. After making serendipitously the diagnosis of a suprasellar mass, an endoscopic endonasal surgery was performed and, at the end of tumor removal, the impressive left optic nerve atrophy due to enduring local compression was visualized...
February 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29453741/fuel-for-the-work-required-a-theoretical-framework-for-carbohydrate-periodization-and-the-glycogen-threshold-hypothesis
#2
Samuel G Impey, Mark A Hearris, Kelly M Hammond, Jonathan D Bartlett, Julien Louis, Graeme L Close, James P Morton
Deliberately training with reduced carbohydrate (CHO) availability to enhance endurance-training-induced metabolic adaptations of skeletal muscle (i.e. the 'train low, compete high' paradigm) is a hot topic within sport nutrition. Train-low studies involve periodically training (e.g., 30-50% of training sessions) with reduced CHO availability, where train-low models include twice per day training, fasted training, post-exercise CHO restriction and 'sleep low, train low'. When compared with high CHO availability, data suggest that augmented cell signalling (73% of 11 studies), gene expression (75% of 12 studies) and training-induced increases in oxidative enzyme activity/protein content (78% of 9 studies) associated with 'train low' are especially apparent when training sessions are commenced within a specific range of muscle glycogen concentrations...
February 16, 2018: Sports Medicine
https://www.readbyqxmd.com/read/29453446/environmental-genetic-and-epigenetic-contributions-to-cocaine-addiction
#3
REVIEW
R Christopher Pierce, Bruno Fant, Sarah E Swinford-Jackson, Elizabeth A Heller, Wade H Berrettini, Mathieu E Wimmer
Decades of research on cocaine has produced volumes of data that have answered many important questions about the nature of this highly addictive drug. Sadly, none of this information has translated into the development of effective therapies for the treatment of cocaine addiction. This review endeavors to assess the current state of cocaine research in an attempt to identify novel pathways for therapeutic development. For example, risk of cocaine addiction is highly heritable but genome-wide analyses comparing cocaine-dependent individuals to controls have not resulted in promising targets for drug development...
February 5, 2018: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29452639/mitochondrial-mdm2-regulates-respiratory-complex-i-activity-independently-of-p53
#4
Giuseppe Arena, Madi Yann Cissé, Samuel Pyrdziak, Laurent Chatre, Romain Riscal, Maryse Fuentes, Jamie Jon Arnold, Markus Kastner, Laurie Gayte, Christelle Bertrand-Gaday, Kevin Nay, Claire Angebault-Prouteau, Kerren Murray, Beatrice Chabi, Christelle Koechlin-Ramonatxo, Béatrice Orsetti, Charles Vincent, François Casas, Jean-Christophe Marine, Sandrine Etienne-Manneville, Florence Bernex, Anne Lombès, Craig Eugene Cameron, Hervé Dubouchaud, Miria Ricchetti, Laetitia Karine Linares, Laurent Le Cam
Accumulating evidence indicates that the MDM2 oncoprotein promotes tumorigenesis beyond its canonical negative effects on the p53 tumor suppressor, but these p53-independent functions remain poorly understood. Here, we show that a fraction of endogenous MDM2 is actively imported in mitochondria to control respiration and mitochondrial dynamics independently of p53. Mitochondrial MDM2 represses the transcription of NADH-dehydrogenase 6 (MT-ND6) in vitro and in vivo, impinging on respiratory complex I activity and enhancing mitochondrial ROS production...
February 15, 2018: Molecular Cell
https://www.readbyqxmd.com/read/29452599/feasibility-and-acceptability-of-pre-operative-physical-activity-to-improve-patient-outcomes-after-major-cancer-surgery-study-protocol-for-a-pilot-randomised-controlled-trial-pepa-trial
#5
Daniel Steffens, Jane Young, Paula R Beckenkamp, James Ratcliffe, Freya Rubie, Nabila Ansari, Neil Pillinger, Michael Solomon
BACKGROUND: There is a need for evidence of the effectiveness of pre-operative exercise for patients undergoing major cancer surgery; however, recruitment to such trials can be challenging. The PrE-operative Physical Activity (PEPA) Trial will establish the feasibility and acceptability of a pre-operative exercise programme aimed to improve patient outcomes after cytoreductive surgery and pelvic exenteration. The secondary aim is to obtain pilot data on the likely difference in key outcomes (post-operative complications, length of hospital stay, post-operative functional capacity and quality of life) to inform the sample size calculation for the substantive randomised clinical trial...
February 17, 2018: Trials
https://www.readbyqxmd.com/read/29452288/repetitive-tlr-3-activation-in-the-lung-induces-skeletal-muscle-adaptations-and-cachexia
#6
Ted G Graber, Brandy L Rawls, Bing Tian, William J Durham, Camille R Brightwell, Allan R Brasier, Blake B Rasmussen, Christopher S Fry
Due to immunosenescence, older adults are particularly susceptible to lung-based viral infections, with increased severity of symptoms in those with underlying chronic lung disease. Repeated respiratory viral infections produce lung maladaptations, accelerating pulmonary dysfunction. Toll like 3 receptor (TLR3) is a membrane protein that senses exogenous double-stranded RNA to activate the innate immune response to a viral infection. Polyinosinic-polycytidylic acid [poly(I:C)] mimics double stranded RNA and has been shown to activate TLR3...
February 13, 2018: Experimental Gerontology
https://www.readbyqxmd.com/read/29451306/supraspinal-modulation-of-neuronal-synchronization-by-nociceptive-stimulation-induces-an-enduring-reorganization-of-dorsal-horn-neuronal-connectivity
#7
E Contreras-Hernández, D Chávez, E Hernández, E Velázquez, P Reyes, J Bejar, M Martín, U Cortés, S Glusman, P Rudomin
Despite the profuse information on the molecular and cellular mechanisms involved in the central sensitization produced by intense nociceptive stimulation, the changes in the patterns of functional connectivity between spinal neurones associated with the development of secondary hyperalgesia and allodynia remain largely unknown. Here we show that the state of central sensitization produced by the intradermal injection of capsaicin is associated with structured transformations in neuronal synchronization that lead to an enduring reorganization of the functional connectivity within a segmentally distributed ensemble of dorsal horn neurones...
February 16, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29450855/health-related-quality-of-life-among-us-military-personnel-injured-in-combat-findings-from-the-wounded-warrior-recovery-project
#8
Susan I Woodruff, Michael R Galarneau, Cameron T McCabe, Daniel I Sack, Mary C Clouser
PURPOSE: Little is known about the long-term, health-related quality of life (HRQOL) of those wounded in combat during Operations Enduring Freedom, Iraqi Freedom, and New Dawn. The present study described the overall HRQOL for a large group of US service members experiencing mild-to-severe combat-related injuries, and assessed the unique contribution of demographics, service- and injury-related characteristics, and mental health factors on long-term HRQOL. METHOD: The Wounded Warrior Recovery Project examines patient-reported outcomes in a cohort of US military personnel wounded in combat...
February 15, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29450221/drinking-game-participation-gender-performance-and-normalization-of-intoxication-among-nigerian-university-students
#9
Emeka Dumbili, Clare Williams
Background: Most research on drinking games (DGs) and the associated risks focuses on Western countries. In the Nigerian context, DGs activity has not attracted scholarly attention but growing media reports indicate that Nigerian youths play DGs, and that a number of gamers have died during or immediately after game-playing. Methods: Drawing on gender performance scripts, we explored the performance of gender through DGs practices and the factors that motivate DGs participation...
June 2017: Addictive Behaviors Reports
https://www.readbyqxmd.com/read/29450148/the-effect-of-endurance-training-with-and-without-vitamin-e-on-expression-of-p53-and-pten-tumor-suppressing-genes-in-prostate-glands-of-male-rats
#10
Amin Allah Dashtiyan, Masood Sepehrimanesh, Nader Tanideh, Mohammad Esmaeil Afzalpour
The aim of this study was to investigate the effect of endurance training with and without vitamin E on the expression of p53 and Phosphatase and tension homolog (PTEN) tumor suppressor genes of prostate glands in male rats. For this purpose, 50 Sprague-Dawley male rats were randomly assigned into 5 groups: (1) control group (CON, n = 10), (2) sham (S, n = 10), (3) endurance training (ET, n = 10), (4) endurance training + vitamin E (ET + VE, n = 10), (5) vitamin E (VE, n = 10). Endurance training protocol was implemented for 6 weeks, 6 days per week, in accordance with the overload principle...
June 2017: Biochimie Open
https://www.readbyqxmd.com/read/29449002/shoulder-joint-kinetics-and-dynamics-during-underwater-forward-arm-elevation
#11
Jessy Lauer, João Paulo Vilas-Boas, Annie Hélène Rouard
Aquatic exercises are widely implemented into rehabilitation programs. However, both evaluating their mechanical demands on the musculoskeletal system and designing protocols to provide progressive loading are difficult tasks. This study reports for the first time shoulder joint kinetics and dynamics during underwater forward arm elevation performed at speeds ranging from 22.5 to 90°/s. Net joint moments projected onto anatomical axes of rotation, joint power, and joint work were calculated in 18 participants through a novel approach coupling numerical fluid flow simulations and inverse dynamics...
February 9, 2018: Journal of Biomechanics
https://www.readbyqxmd.com/read/29448570/study-on-endurance-and-performance-of-impregnated-ruthenium-catalyst-for-thruster-system
#12
Jincheol Kim, Taegyu Kim
Performance and endurance of the Ru catalyst were studied for nitrous oxide monopropellant thruster system. The thermal decomposition of N2O requires a considerably high temperature, which make it difficult to be utilized as a thruster propellant, while the propellant decomposition temperature can be reduced by using the catalyst through the decomposition reaction with the propellant. However, the catalyst used for the thruster was frequently exposed to high temperature and high-pressure environment. Therefore, the state change of the catalyst according to the thruster operation was analyzed...
February 1, 2018: Journal of Nanoscience and Nanotechnology
https://www.readbyqxmd.com/read/29447356/barriers-to-the-availability-and-accessibility-of-controlled-medicines-for-chronic-pain-in-africa
#13
Elmang Nchako, Scottie Bussell, Carlos Nesbeth, Chisom Odoh
Africans endure a high burden of pain and suffering from HIV/AIDS and cancer, yet receive a meager amount of the world's pain medication. This tragedy occurs needlessly, given that inexpensive, effective and easily administered interventions are available. WHO has a 'three-step analgesic ladder' framework for managing cancer pain. This widely adopted clinical practice guideline is an integral part of palliative care programs and has also been applied to non-cancer pain. However, untreated pain is a major public health problem due to the discordance between scientific evidence and public policy...
February 13, 2018: International Health
https://www.readbyqxmd.com/read/29446709/viewpoint-use-aerobic-energy-expenditure-instead-of-oxygen-uptake-to-quantify-exercise-intensity-and-predict-endurance-performance
#14
Owen N Beck, Shalaya Kipp, William C Byrnes, Rodger Kram
No abstract text is available yet for this article.
February 15, 2018: Journal of Applied Physiology
https://www.readbyqxmd.com/read/29446245/differential-metabolic-effects-of-constant-moderate-versus-high-intensity-interval-training-in-high-fat-fed-mice-possible-role-of-muscle-adiponectin
#15
Sergio F Martinez-Huenchullan, Babu Raja Maharjan, Paul F Williams, Charmaine S Tam, Susan V Mclennan, Stephen M Twigg
Exercise regimens may have differing effects in the presence of obesity. In addition to being fat derived, adiponectin has recently been described as a myokine that regulates insulin sensitivity, which may link to exercise-related metabolic benefits in obesity. Whether skeletal muscle adiponectin varies in different exercise modalities is unclear. This study investigated the comparative effects of 10 weeks of endurance constant-moderate intensity exercise (END) with high intensity interval training (HIIT), on metabolic outcomes, including muscle adiponectin in a mouse model of diet-induced obesity...
February 2018: Physiological Reports
https://www.readbyqxmd.com/read/29446168/hospital-nurses-lived-experiences-of-intelligent-resilience-a-phenomenological-study
#16
Behzad Imani, Sima Mohamad Khan Kermanshahi, Zohreh Vanaki, Anoshiravan Kazemnejad Lili
AIM AND OBJECTIVES: The aim of this study was to explore Iranian hospital nurses' lived experiences of intelligent resilience. BACKGROUND: Nurses do high levels of emotional work when fulfilling patients' and their family members' complex needs. Intelligent resilience can alleviate nurses' stress and enhance their endurance. DESIGN: This study was based on the Husserlian descriptive phenomenology. METHODS: A purposive sample of ten hospital nurses was drawn from hospitals affiliated with Hamadan University of Medical Sciences, Hamadan, Iran...
February 15, 2018: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/29445620/genetic-analysis-of-maternal-and-paternal-lineages-in-kabardian-horses-by-uniparental-molecular-markers
#17
Aliybek D Khaudov, Astemir S Duduev, Zaur A Kokov, Khazhismel K Amshokov, Mohamed Kh Zhekamukhov, Alexander M Zaitsev, Monika Reissmann
Studies of mitochondrial DNA (mtDNA) as well as the non-recombining part of the Y chromosome help to understand the origin and distribution of maternal and paternal lineages. The Kabardian horse from Northern Caucasia which is well-known for strength, stamina and endurance in distance riding has a large gap in its breeding documentation especially in the recent past. A 309 bp fragment of the mitochondrial D-loop (156 Kabardian horses) and six mutations in Y chromosome (49 Kabardian stallions), respectively, were analyzed to get a better insight into breeding history, phylogenetic relationship to related breeds, maternal and paternal diversity and genetic structure...
2018: Open Veterinary Journal
https://www.readbyqxmd.com/read/29444166/fairness-informs-social-decision-making-in-infancy
#18
Kelsey Lucca, Jacqueline Pospisil, Jessica A Sommerville
The ability to reason about fairness plays a defining role in the development of morality. Thus, researchers have long been interested in understanding when and how a sensitivity to fairness first develops. Here, we examined infants' ability to use fairness information in selecting social partners. Using a novel experimental paradigm that combined pre-recorded stimuli with an active behavioral measure, we tested whether infants preferred to socially engage with an individual they had previously seen behave fairly or unfairly...
2018: PloS One
https://www.readbyqxmd.com/read/29444097/the-effects-of-intensified-training-on-resting-metabolic-rate-rmr-body-composition-and-performance-in-trained-cyclists
#19
Amy L Woods, Anthony J Rice, Laura A Garvican-Lewis, Alice M Wallett, Bronwen Lundy, Margot A Rogers, Marijke Welvaert, Shona Halson, Andrew McKune, Kevin G Thompson
BACKGROUND: Recent research has demonstrated decreases in resting metabolic rate (RMR), body composition and performance following a period of intensified training in elite athletes, however the underlying mechanisms of change remain unclear. Therefore, the aim of the present study was to investigate how an intensified training period, designed to elicit overreaching, affects RMR, body composition, and performance in trained endurance athletes, and to elucidate underlying mechanisms. METHOD: Thirteen (n = 13) trained male cyclists completed a six-week training program consisting of a "Baseline" week (100% of regular training load), a "Build" week (~120% of Baseline load), two "Loading" weeks (~140, 150% of Baseline load, respectively) and two "Recovery" weeks (~80% of Baseline load)...
2018: PloS One
https://www.readbyqxmd.com/read/29443549/endurance-exercise-training-and-high-fat-diet-differentially-affect-composition-of-diacylglycerol-molecular-species-in-rat-skeletal-muscle
#20
Noriaki Kawanishi, Kana Takagi, Hyeon-Cheol Lee, Daiki Nakano, Toshiaki Okuno, Takehiko Yokomizo, Shuichi Machida
Insulin resistance of peripheral muscle is implicated in the aetiology of metabolic syndrome in obesity. Although accumulation of glycerolipids, such as triacylglycerol and diacylglycerol (DAG), in muscle contributes to insulin resistance in obese individuals, endurance-trained athletes also have higher glycerolipid levels but normal insulin sensitivity. We hypothesised that the difference in insulin sensitivity of skeletal muscle between athletes and obese individuals stems from changes in fatty acid composition of accumulated lipids...
February 14, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
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