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https://www.readbyqxmd.com/read/28225709/the-relationship-between-trunk-rotation-upper-quarter-dynamic-stability-and-pitch-velocity
#1
Garrett S Bullock, Abigail C Schmitt, Patrick Chasse, Barrett A Little, Lee H Diehl, Robert J Butler
Understanding the relationship between upper quarter mobility, dynamic stability and pitching velocity may be beneficial in elucidating underlying factors that affect pitching performance. The purpose of this study was to investigate upper trunk rotation mobility and upper quarter dynamic stability and their correlation to pitch velocity in NCAA Division I collegiate pitchers. We hypothesized that collegiate pitchers with greater upper trunk rotation mobility and upper extremity dynamic stability would exhibit higher pitching velocity...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28225525/effects-of-game-performance-on-softball-pitchers-and-catchers
#2
Gretchen D Oliver, Hillary A Plummer, Jessie Washington, Wendi H Weimar, Allison Brambeck
The purpose of this study was to examine the effects of game exposure on pitchers and catchers' hip and glenohumeral range of motion (ROM), isometric strength, and vertical jump performance and power. Five college female softball pitchers (174.24 ± 7.53 cm; 82.10 ± 11.27 kg; 20 ± 1.82 years) and four catchers (165.10 ± 9.04 kg; 68.61 ± 3.87 cm; 20 ± 1.41 years) participated. Hip and glenohumeral rotational ROM; hip and glenohumeral rotational isometric strength; hip abduction and adduction strength; and vertical jump height were assessed pre and post-game exposure...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28222171/metabolite-profiling-of-the-carnivorous-pitcher-plants-darlingtonia-and-sarracenia
#3
Hannu Hotti, Peddinti Gopalacharyulu, Tuulikki Seppänen-Laakso, Heiko Rischer
Sarraceniaceae is a New World carnivorous plant family comprising three genera: Darlingtonia, Heliamphora, and Sarracenia. The plants occur in nutrient-poor environments and have developed insectivorous capability in order to supplement their nutrient uptake. Sarracenia flava contains the alkaloid coniine, otherwise only found in Conium maculatum, in which its biosynthesis has been studied, and several Aloe species. Its ecological role and biosynthetic origin in S. flava is speculative. The aim of the current research was to investigate the occurrence of coniine in Sarracenia and Darlingtonia and to identify common constituents of both genera, unique compounds for individual variants and floral scent chemicals...
2017: PloS One
https://www.readbyqxmd.com/read/28219667/mild-social-stress-in-mice-produces-opioid-mediated-analgesia-in-visceral-but-not-somatic-pain-states
#4
M H Pitcher, R Gonzalez-Cano, K Vincent, M Lehmann, E J Cobos, T J Coderre, J M Baeyens, F Cervero
: Visceral pain has a greater emotional component than somatic pain. To determine if the stress-induced analgesic response is differentially expressed in visceral versus somatic pain states, we studied the effects of a mild social stressor in either acute visceral or somatic pain states in mice. We show that the presence of an unfamiliar conspecific (stranger) in an adjacent cubicle of a standard transparent observation box produced elevated plasma corticosterone levels compared to mice tested alone, suggesting that the mere presence of a stranger is stressful...
February 17, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28203588/return-to-play-and-prior-performance-in-major-league-baseball-pitchers-after-repair-of-superior-labral-anterior-posterior-tears
#5
Ryan Smith, Daniel J Lombardo, Graysen R Petersen-Fitts, Charles Frank, Troy Tenbrunsel, Gannon Curtis, James Whaley, Vani J Sabesan
BACKGROUND: The published return-to-play (RTP) rates for Major League Baseball (MLB) pitchers who have undergone surgical repair of superior labrum anterior-posterior (SLAP) tears vary widely and are generally accepted to be lower in the subset of competitive throwers. The efficacy of surgical treatment for MLB players is largely unknown. PURPOSE: To examine the RTP rate and performance of MLB pitchers who have undergone SLAP tear repair between 2003 and 2010. STUDY DESIGN: Descriptive epidemiological study...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28193693/unresponsive-choline-transporter-as-a-trait-neuromarker-and-a-causal-mediator-of-bottom-up-attentional-biases
#6
Ajeesh Koshy Cherian, Aaron Kucinski, Kyle Pitchers, Brittney Yegla, Vinay Parikh, Youngsoo Kim, Paulina Valuskova, Sarika Gurnani, Craig W Lindsley, Randy D Blakely, Martin Sarter
Some rats (sign-trackers; STs) are prone to attribute incentive salience to reward cues, which can manifest as a propensity to approach and contact Pavlovian cues, and for addiction-like behavior. STs also exhibit poor attentional performance, relative to goal-trackers (GTs), which is associated with attenuated acetylcholine (ACh) levels in prefrontal cortex (Paolone et al., 2013). Here, we demonstrate a cellular mechanism, linked to ACh synthesis, that accounts for attenuated cholinergic capacity in STs. First, we found that electrical stimulation of the basal forebrain increased cortical choline transporter (CHT)-mediated choline transport in GTs, paralleled by a redistribution of CHTs to the synaptic plasma membrane...
February 13, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28190588/survival-of-the-apical-papilla-and-its-resident-stem-cells-in-a-case-of-advanced-pulpal-necrosis-and-apical-periodontitis
#7
Vanessa Chrepa, Brandon Pitcher, Michael A Henry, Anibal Diogenes
INTRODUCTION: Apical papilla represents a source of an enriched mesenchymal stem cell (MSC) population (stem cells of the apical papilla [SCAPs]) that modulates root development and may participate in regenerative endodontic procedures in immature teeth with pulp necrosis. The characteristics and phenotype of this tissue in the presence of inflammation are largely unknown. The purpose of this study was to characterize a human apical papilla sample that was isolated from an immature tooth with pulp necrosis and apical periodontitis...
February 9, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28190570/rethinking-research-on-sexual-exploitation-of-boys-methodological-challenges-and-recommendations-to-optimize-future-knowledge-generation
#8
Katherine Mitchell, Melissa Moynihan, Claire Pitcher, Annabel Francis, Abigail English, Elizabeth Saewyc
Research and policies on child and adolescent sexual exploitation frequently focus on the sexual exploitation of girls and fail to recognize the experiences of sexually exploited boys, including their potentially unique health care and social support needs. This oversight limits the ability of health care and social service providers to offer both targeted and evidence informed care to sexually exploited boys. As a first step in a larger grant to understand the experiences of sexually exploited boys and to develop interventions for this specific population, we conducted a systematic review to address the question, "What is the state of the research on sexually exploited boys internationally?" As we undertook this review, we faced a number of significant challenges that made the process more difficult than anticipated...
February 9, 2017: Child Abuse & Neglect
https://www.readbyqxmd.com/read/28185925/modest-amounts-of-voluntary-exercise-reduce-pain-and-stress-related-outcomes-in-a-rat-model-of-persistent-hind-limb-inflammation
#9
M H Pitcher, F Tarum, I Z Rauf, L A Low, M C Bushnell
: Aerobic exercise improves outcomes in a variety of chronic health conditions, yet the support for exercise-induced effects on chronic pain in humans is mixed. While many rodent studies have examined the effects of exercise on persistent hypersensitivity, the vast majority employed forced exercise paradigms that are known to be highly stressful. Since stress can also produce analgesic effects, we studied how voluntary exercise, known to reduce stress in healthy subjects, alters hypersensitivity, stress and swelling in a rat model of persistent hind paw inflammation...
February 6, 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28162573/-335-decreased-opioid-receptor-availability-in-rat-brain-three-months-after-peripheral-nerve-injury
#10
S Thompson, M Pitcher, F Tarum, G Niu, X Chen, D Kiesewetter, P Schweinhardt, M Bushnell
No abstract text is available yet for this article.
April 2016: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/28161412/proteomic-characterization-of-seminal-plasma-from-alternative-reproductive-tactics-of-chinook-salmon-oncorhynchus-tswatchysha
#11
Robert Gombar, Trevor E Pitcher, Jason A Lewis, Janeen Auld, Panayiotis O Vacratsis
: Chinook salmon (Oncorhynchus tshawytscha) are external fertilizers that display sneak-guard alternative reproductive tactics. The larger hooknose males dominate mating positions, while the smaller jack males utilize sneak tactics to achieve fertilization. Although poorly understood, previous studies have suggested that differences in spermatozoa quality may play a critical role in sperm competition. Considering that the seminal plasma strongly regulates spermatozoa quality and other processes critical for fertilization success, we employed label free quantitative mass spectrometry utilizing ion mobility separation coupled to cross-species bioinformatics to examine the seminal plasma proteome of Chinook salmon...
February 2, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28160922/relative-individual-workload-changes-may-be-a-risk-factor-for-rerupture-of-ulnar-collateral-ligament-reconstruction
#12
Robert A Keller, Nima Mehran, Lafi S Khalil, Christopher S Ahmad, Neal ElAttrache
BACKGROUND: With an increasing number of Major League Baseball (MLB) players undergoing ulnar collateral ligament (UCL) reconstruction, there remains limited literature on appropriate post-reconstruction workload management to limit the risk of reinjury. METHODS: A total of 28 MLB pitchers who underwent primary UCL reconstruction surgery and subsequently required revision reconstruction were identified and compared with 137 MLB pitchers who underwent primary reconstruction but did not later require revision surgery...
March 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28157450/changes-in-lower-extremity-kinematics-and-temporal-parameters-of-adolescent-baseball-pitchers-during-an-extended-pitching-bout
#13
Stacey M Kung, Sarah P Shultz, Andreas Kontaxis, Andrew P Kraszewski, Mandi W Gibbons, Sherry I Backus, Philip W Fink, Stephen Fealy, Howard J Hillstrom
BACKGROUND: Few studies have investigated detailed 3-dimensional lower extremity kinematics during baseball pitching in adolescent athletes during extended play. Changes in these parameters may affect performance outcomes. PURPOSE: To investigate whether adolescent baseball pitchers experience changes in lower extremity kinematics and event timing during a simulated game-length pitching bout. STUDY DESIGN: Descriptive laboratory study. METHODS: Twelve male adolescent pitchers (aged 14-16 years) threw 6 sets of 15 fastball pitches from an artificial pitching mound to a target at regulation distance...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28151974/assessment-of-a-prognostic-model-psa-metrics-and-toxicities-in-metastatic-castrate-resistant-prostate-cancer-using-data-from-project-data-sphere-pds
#14
Bethany Pitcher, Leila Khoja, Robert J Hamilton, Kald Abdallah, Melania Pintilie, Anthony M Joshua
BACKGROUND: Prognostic models in metastatic castrate resistant prostate cancer (mCRPC) may have clinical utility. Using data from PDS, we aimed to 1) validate a contemporary prognostic model (Templeton et al., 2014) 2) evaluate prognostic impact of concomitant medications and PSA decrease 3) evaluate factors associated with docetaxel toxicity. METHODS: We accessed data on 2,449 mCRPC patients in PDS. The existing model was validated with a continuous risk score, time-dependent receiver operating characteristic (ROC) curves, and corresponding time-dependent Area under the Curve (tAUC)...
2017: PloS One
https://www.readbyqxmd.com/read/28144979/organization-of-glomerular-territories-in-the-olfactory-bulb-of-post-embryonic-wild-chinook-salmon-oncorhynchus-tshawytscha
#15
Cory L Ochs, Tina Suntres, Alexandra Zygowska, Trevor Pitcher, Barbara S Zielinski
The post-embryonic odor imprinting paradigm suggests Chinook salmon (Oncorhynchus tshawytscha) acquire memory to stream-specific amino acid olfactory odors prior to emergence as fry. Because effects of olfactory experience on development can be examined by mapping olfactory sensory neurons extending into distinct territories of glomerular neuropil in the olfactory bulb, glomerular patterning from early yolk-sac larva to fry was documented in wild salmonids, a temporal scale not yet thoroughly explored. Labeling olfactory sensory neurons with anti-keyhole limpet hemocyanin (anti-KLH) revealed seven spatially conserved glomerular territories visible at hatch and well established by the late yolk-sac larva developmental stage...
January 31, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28143675/fabrication-techniques-for-bioinspired-mechanically-durable-superliquiphobic-surfaces-for-water-oil-and-surfactant-repellency
#16
REVIEW
Samuel Martin, Philip S Brown, Bharat Bhushan
Nature provides inspiration for liquid-repellant and low-adhesive surfaces, such as the lotus leaf and pitcher plant. While water-repellency is frequently found in nature, oil-repellency and surfactant-repellency are uncommon to nonexistent. To obtain oil- and surfactant-repellency, hierarchical, re-entrant, bioinspired surface structures along with low surface energy materials are needed. This overview presents wetting literature, common liquids and their composition, and fabrication techniques for superliquiphobic surfaces with repellency toward water, oil, and surfactant-containing liquids...
January 23, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28140764/the-two-body-inversion-effect
#17
Liuba Papeo, Timo Stein, Salvador Soto-Faraco
How does one perceive groups of people? It is known that functionally interacting objects (e.g., a glass and a pitcher tilted as if pouring water into it) are perceptually grouped. Here, we showed that processing of multiple human bodies is also influenced by their relative positioning. In a series of categorization experiments, bodies facing each other (seemingly interacting) were recognized more accurately than bodies facing away from each other (noninteracting). Moreover, recognition of facing body dyads (but not nonfacing body dyads) was strongly impaired when those stimuli were inverted, similar to what has been found for individual bodies...
January 1, 2017: Psychological Science
https://www.readbyqxmd.com/read/28139383/olecranon-physeal-nonunion-in-the-adolescent-athlete-identification-of-two-patterns
#18
Rachel M Frank, Brett A Lenart, Mark S Cohen
BACKGROUND: This study aimed to present the outcomes of patients undergoing surgical management of persistent, symptomatic olecranon physes. METHODS: Consecutive patients undergoing surgical management for symptomatic persistent olecranon physeal abnormalities were reviewed. Preoperative data, intraoperative findings, and postoperative clinical outcomes including physical examination findings, radiographs, complications, and reoperations were analyzed. RESULTS: A total of 13 elbows in 12 patients (100% male; average age, 18 ± 4 years) were identified...
January 27, 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/28125914/sports-injuries-to-the-latissimus-dorsi-and-teres-major
#19
Benjamin F Donohue, Marc G Lubitz, Timothy E Kremchek
Injuries to the latissimus dorsi and teres major muscles, while rare, are debilitating. They are seen in a variety of sports, although disproportionately in the throwing shoulder of baseball pitchers. There have been 25 case reports and 2 case series published on the nonoperative and operative management of these injuries. Latissimus dorsi and teres major muscle anatomy, function, and common injury patterns are well described in these case reports. Also well detailed are the typical patient presentation, physical examination, and imaging findings...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28107113/the-relationship-between-pitching-mechanics-and-injury
#20
Peter N Chalmers, Markus A Wimmer, Nikhil N Verma, Brian J Cole, Anthony A Romeo, Gregory L Cvetanovich, Michael L Pearl
CONTEXT: The overhand pitch is one of the fastest known human motions and places enormous forces and torques on the upper extremity. Shoulder and elbow pain and injury are common in high-level pitchers. A large body of research has been conducted to understand the pitching motion. EVIDENCE ACQUISITION: A comprehensive review of the literature was performed to gain a full understanding of all currently available biomechanical and clinical evidence surrounding pitching motion analysis...
January 1, 2017: Sports Health
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