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https://www.readbyqxmd.com/read/29048928/epidemiology-of-shoulder-and-elbow-injuries-among-united-states-high-school-baseball-players-school-years-2005-2006-through-2014-2015
#1
Michael G Saper, Lauren A Pierpoint, Wei Liu, R Dawn Comstock, John D Polousky, James R Andrews
BACKGROUND: Shoulder and elbow injuries are common in young athletes, especially high school baseball players. Understanding the risk factors associated with baseball injuries is an essential first step in the development of injury prevention strategies. PURPOSE: To provide a comprehensive understanding of the epidemiology of shoulder and elbow injuries among high school baseball players in the United States. STUDY DESIGN: Descriptive epidemiological study...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29044780/-hot-versus-cold-behavioral-cognitive-styles-motivational-dopaminergic-versus-cognitive-cholinergic-processing-of-a-pavlovian-cocaine-cue-in-sign-and-goal-tracking-rats
#2
Kyle K Pitchers, Louisa F Kane, Youngsoo Kim, Terry E Robinson, Martin Sarter
Discrete Pavlovian reward cues acquire more potent incentive motivational properties (incentive salience), in some animals (sign-trackers; STs) compared to others (goal trackers; GTs). Conversely, GTs appear to be better than STs in processing more complex contextual cues, perhaps reflecting their relatively greater bias for goal-directed cue processing. Here we investigated the activity of two major prefrontal neuromodulatory input systems, dopamine (DA) and acetylcholine (ACh), in response to a discrete Pavlovian cue that was previously paired with cocaine administration in STs and GTs...
October 17, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/29037045/bi4o4cu1-7se2-7cl0-3-an-intergrowth-of-biocuse-and-bi2o2se-stabilized-by-the-addition-of-a-third-anion
#3
Quinn D Gibson, Matthew S Dyer, George F S Whitehead, Jonathan Alaria, Michael J Pitcher, Holly J Edwards, John B Claridge, Marco Zanella, Karl Dawson, Troy D Manning, Vin R Dhanak, Matthew J Rosseinsky
Layered two-anion compounds are of interest for their diverse electronic properties. The modular nature of their layered structures offers opportunities for the construction of complex stackings used to introduce or tune functionality, but the accessible layer combinations are limited by the crystal chemistries of the available anions. We present a layered three-anion material, Bi4O4Cu1.7Se2.7Cl0.3, which adopts a new structure type composed of alternately stacked BiOCuSe and Bi2O2Se-like units. This structure is accessed by inclusion of three chemically distinct anions, which are accommodated by aliovalently substituted Bi2O2Se0...
October 16, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29030597/stabilization-of-a-bat-pitcher-plant-mutualism
#4
Michael G Schöner, Caroline R Schöner, Rebecca Ermisch, Sébastien J Puechmaille, T Ulmar Grafe, Moi Chan Tan, Gerald Kerth
Despite the long persistence of many mutualisms, it is largely unknown which mechanisms stabilize these interactions. This is especially true if only one mutualism partner can choose alternative partners while the other cannot, resulting in a power asymmetry. According to biological market theory the choosing partner should prefer the more dependent partner if the latter offers commodities of higher quality than its competitors. We tested this prediction using Bornean carnivorous pitcher plants (Nepenthes hemsleyana) that strongly rely on faecal nitrogen of bats (Kerivoula hardwickii) which roost inside the pitchers...
October 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29024601/a-biomechanical-analysis-of-the-association-between-forearm-mechanics-and-the-elbow-varus-moment-in-collegiate-baseball-pitchers
#5
Matthew J Solomito, Erin J Garibay, Carl W Nissen
BACKGROUND: The incidence of upper extremity injury in baseball pitchers has increased over the past decade. This has resulted in a large body of research mainly focused on the kinematic and kinetic patterns of the elbow and shoulder to elucidate the cause of these injuries, with little attention on studying the associations of forearm rotation and upper arm joint moments. HYPOTHESIS: There will be significant differences in forearm kinematics and kinetics when comparing the fastball pitch with the curveball pitch...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28980096/isolated-aortic-root-dilation-in-homocystinuria
#6
Massimiliano Lorenzini, Nishan Guha, James E Davison, Alex Pitcher, Bejal Pandya, Helena Kemp, Robin Lachmann, Perry M Elliott, Elaine Murphy
BACKGROUND: Vascular complications in homocystinuria have been known for many years, but there have been no reports to date on involvement of the ascending aorta. METHODS: We conducted a cross-sectional study of patients with homocystinuria, known to a single metabolic centre, and evaluated in 2016 with a transthoracic echocardiogram. Aortic root dilation was defined as Z-score ≥ 2.0 SD, and graded mild (Z-score 2.0-3.0), moderate (Z-score 3.01-4.0) and severe (Z-score > 4...
October 4, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28975133/pectoralis-minor-contracture-in-throwing-shoulders-of-asymptomatic-adolescent-baseball-players
#7
Justin L Hodgins, William Rubenstein, David Kovacevic, Ajay Padaki, Charles M Jobin, Christopher S Ahmad
BACKGROUND: Although scapular malpositioning is commonly associated with rotational deficits and risk of injury, modifiable causes of such malpositioning in overhead athletes are not well described. PURPOSE/HYPOTHESIS: The purpose of this study was to examine the scapulothoracic profile of adolescent baseball players, specifically, pectoralis minor (PM) length. We hypothesized that PM would be shorter in throwing shoulders compared with nonthrowing shoulders. STUDY DESIGN: Cross-sectional study; Level of evidence, 3...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28968146/changes-in-youth-baseball-pitching-biomechanics-a-7-year-longitudinal-study
#8
Glenn S Fleisig, Alek Z Diffendaffer, Brett Ivey, Kyle T Aune, Tony Laughlin, Dave Fortenbaugh, Becky Bolt, Wendy Lucas, Kevin D Moore, Jeffrey R Dugas
BACKGROUND: Pitching biomechanics are associated with performance and risk of injury in baseball. Previous studies have identified biomechanical differences between youth and adult pitchers but have not investigated changes within individual young pitchers as they mature. HYPOTHESIS: Pitching kinematics and kinetics will change significantly during a youth pitcher's career. STUDY DESIGN: Descriptive laboratory study. METHODS: Pitching biomechanics were captured in an indoor laboratory with a 12-camera, 240-Hz motion analysis system for 51 youth pitchers who were in their first season of organized baseball with pitching...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28968139/biomechanical-comparisons-among-fastball-slider-curveball-and-changeup-pitch-types-and-between-balls-and-strikes-in-professional-baseball-pitchers
#9
Rafael F Escamilla, Glenn S Fleisig, Dave Groeschner, Ken Akizuki
BACKGROUND: In professional baseball pitchers, pitching biomechanics have not been examined for the slider, and the only known study for the curveball and changeup examined limited kinetics. Moreover, no known studies have investigated pitching biomechanics between strikes and balls. Purpose/Hypothesis: The purpose was to compare pitching biomechanics in professional baseball pitchers among the fastball, slider, curveball, and changeup and between balls and strikes. It was hypothesized that pitching kinematics and kinetics would be similar among the slider, fastball, and curveball; shoulder and elbow forces and torques would be significantly lower in the changeup; and pitching biomechanics would be similar between balls and strikes...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28964676/ulnar-neuropathy-and-medial-elbow-pain-in-women-s-fastpitch-softball-pitchers-a-report-of-6-cases
#10
Adam M Smith, Thomas H Butler, Michael S Dolan
BACKGROUND: Elite-level women's fastpitch softball players place substantial biomechanical strains on the elbow that can result in medial elbow pain and ulnar neuropathic symptoms. There is scant literature reporting the expected outcomes of the treatment of these injuries. This study examined the results of treatment in a series of these patients. METHODS: We identified 6 female softball pitchers (4 high school and 2 collegiate) with medial elbow pain and ulnar neuropathic symptoms...
September 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28957387/ecosystem-approach-to-fisheries-exploring-environmental-and-trophic-effects-on-maximum-sustainable-yield-msy-reference-point-estimates
#11
Rajeev Kumar, Tony J Pitcher, Divya A Varkey
We present a comprehensive analysis of estimation of fisheries Maximum Sustainable Yield (MSY) reference points using an ecosystem model built for Mille Lacs Lake, the second largest lake within Minnesota, USA. Data from single-species modelling output, extensive annual sampling for species abundances, annual catch-survey, stomach-content analysis for predatory-prey interactions, and expert opinions were brought together within the framework of an Ecopath with Ecosim (EwE) ecosystem model. An increase in the lake water temperature was observed in the last few decades; therefore, we also incorporated a temperature forcing function in the EwE model to capture the influences of changing temperature on the species composition and food web...
2017: PloS One
https://www.readbyqxmd.com/read/28945884/a-phase-ii-trial-of-lenalidomide-plus-rituximab-in-previously-untreated-follicular-non-hodgkin-s-lymphoma-nhl-calgb-50803-alliance
#12
P Martin, S H Jung, B Pitcher, N L Bartlett, K A Blum, T Shea, E D Hsi, J Ruan, S E Smith, J P Leonard, B D Cheson
Background: This multicenter phase II trial tested the tolerability and efficacy of lenalidomide plus rituximab in patients with previously untreated follicular lymphoma (FL). Patients and Methods: Patients with grade 1-3a FL, stage 3-4 or bulky stage 2, FLIPI 0-2, and no prior therapy were eligible to receive rituximab 375 mg/m 2 weekly during cycle 1 and day 1 of cycles 4, 6, 8, and 10, plus lenalidomide 20-25 mg on days 1-21 for twelve 28-day cycles. The primary objectives were to evaluate response rates (complete (CR) and overall (OR)) and time to progression...
August 31, 2017: Annals of Oncology: Official Journal of the European Society for Medical Oncology
https://www.readbyqxmd.com/read/28944624/immediate-autologous-breast-reconstruction-after-neoadjuvant-chemoradiotherapy-for-breast-cancer-initial-results-of-the-first-29-patients
#13
Damien Grinsell, Meron Pitcher, Shirley Wong, Mario Guerrieri, Hans H M Nielsen
BACKGROUND: Breast reconstruction after mastectomy in the treatment of locally advanced breast cancer is often done in stages and before radiotherapy. We have previously published an algorithm for immediate free autologous reconstruction after neoadjuvant chemotherapy and preoperative radiotherapy. This protocol was designed to provide a shorter and simpler reconstructive path whilst improving cosmesis and maintaining oncological efficiency. METHODS: A total of 29 patients were included and underwent surgery for 30 cancers by the first author between 2010 and September 2015...
September 24, 2017: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/28942657/return-to-play-and-outcomes-in-baseball-players-after-superior-labral-anterior-posterior-repairs
#14
Brad D Gilliam, Lonnie Douglas, Glenn S Fleisig, Kyle T Aune, Kylie A Mason, Jeffrey R Dugas, E Lyle Cain, Roger V Ostrander, James R Andrews
BACKGROUND: Few studies have documented the outcomes of superior labral anterior-posterior (SLAP) repairs in baseball players. Furthermore, the results of these previous studies varied widely and were based on small numbers of patients. Hypothesis/Purpose: The purpose was to report return-to-play (RTP) rates and validated subjective outcome scores for baseball players after SLAP repair. It was hypothesized that RTP rates and outcomes would be significantly different between pitchers and nonpitchers, as well as among baseball levels...
September 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28927669/are-the-hamstrings-from-the-drive-leg-or-landing-leg-more-active-in-baseball-pitchers-an-electromyographic-study
#15
Brandon J Erickson, Antonia Zaferiou, Peter N Chalmers, Deana Ruby, Phillip Malloy, Timothy J Luchetti, Nikhil N Verma, Anthony A Romeo
BACKGROUND: Ulnar collateral ligament reconstruction (UCLR) has become a common procedure among baseball players of all levels. There are several graft choices in performing UCLR, one of which is a hamstring (gracilis or semitendinosus) autograft. It is unclear whether the hamstring muscle from a pitcher's drive leg (ipsilateral side of the UCLR) or landing leg (contralateral side of the UCLR) is more active during the pitching motion. We hypothesized that the landing leg semitendinosus will be more electromyographically active than the drive leg...
September 15, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28912541/coprophagous-features-in-carnivorous-nepenthes-plants-a-task-for-ureases
#16
Ayufu Yilamujiang, Anting Zhu, Rodrigo Ligabue-Braun, Stefan Bartram, Claus-Peter Witte, Rainer Hedrich, Mitsuyasu Hasabe, Caroline R Schöner, Michael G Schöner, Gerald Kerth, Célia R Carlini, Axel Mithöfer
Most terrestrial carnivorous plants are specialized on insect prey digestion to obtain additional nutrients. Few species of the genus Nepenthes developed mutualistic relationships with mammals for nitrogen supplementation. Whether dietary changes require certain enzymatic composition to utilize new sources of nutrients has rarely been tested. Here, we investigated the role of urease for Nepenthes hemsleyana that gains nitrogen from the bat Kerivoula hardwickii while it roosts inside the pitchers. We hypothesized that N...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28911814/the-effect-of-patient-gender-on-outcomes-after-reverse-total-shoulder-arthroplasty
#17
Stephanie E Wong, Austin A Pitcher, David Y Ding, Nicola Cashman, Alan L Zhang, C Benjamin Ma, Brian T Feeley
BACKGROUND: Gender differences may exist for patients undergoing shoulder arthroplasty. Limited data suggest that women may have worse preoperative disability and outcomes. Our objective was to determine whether gender influences preoperative disability and patient-reported outcomes after reverse total shoulder arthroplasty. METHODS: Data were prospectively collected for patients who underwent reverse total shoulder arthroplasty for rotator cuff arthropathy or osteoarthritis with a rotator cuff tear at a single institution between 2009 and 2015...
September 11, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28900277/nepenthes-pitchers-are-co2-enriched-cavities-emit-co2-to-attract-preys
#18
Sabulal Baby, Anil John Johnson, Elavinamannil Jacob Zachariah, Abdul Azeez Hussain
Carnivorous plants of the genus Nepenthes supplement their nutrient deficiency by capturing arthropods or by mutualistic interactions, through their leaf-evolved biological traps (pitchers). Though there are numerous studies on these traps, mostly on their prey capture mechanisms, the gas composition inside them remains unknown. Here we show that, Nepenthes unopened pitchers are CO2-enriched 'cavities', when open they emit CO2, and the CO2 gradient around open pitchers acts as a cue attracting preys towards them...
September 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28898664/growth-and-development-of-three-dimensional-plant%C3%A2-form
#19
REVIEW
Christopher D Whitewoods, Enrico Coen
Plants can generate a spectacular array of complex shapes, many of which exhibit elaborate curvature in three dimensions, illustrated for example by orchid flowers and pitcher-plant traps. All of these structures arise through differential growth. Recent findings provide fresh mechanistic insights into how regional cell behaviours may lead to tissue deformations, including anisotropies and curvatures, which shape growing volumes and sheets of cells. Here were review our current understanding of how genes, growth, mechanics, and evolution interact to generate diverse structures...
September 11, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28887932/issues-in-the-intensive-care-unit-for-patients-with-extracorporeal-membrane-oxygenation
#20
REVIEW
Hitoshi Hirose, Harrison T Pitcher, Michael Baram, Nicholas C Cavarocchi
The care of patients on extracorporeal corporeal oxygenation support takes a coordinated effort among the team of nurses, midlevel providers, perfusionists, respiratory therapists, pharmacists, and physicians. Attention on the details of the circuitry and its interactions with the patient, the resolution of the disease process and the ongoing plan of care, and unique issues in the intensive care unit are crucial for success.
October 2017: Critical Care Clinics
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