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https://www.readbyqxmd.com/read/28394713/elbow-mri-findings-do-not-correlate-with-future-placement-on-the-disabled-list-in-asymptomatic-professional-baseball-pitchers
#1
Nicholas M Gutierrez, Christopher Granville, Lee Kaplan, Michael Baraga, Jean Jose
BACKGROUND: Injury rates among professional baseball players may reach as high as 5.8 per 1000 encounters, with pitchers being most vulnerable on account of the excessive biomechanical load on the upper extremity during the throwing motion. Anatomically, the shoulder is the most common site of pitching-related injury, accounting for 30.7% of injuries, closely followed by the elbow at 26.3%. Characteristic valgus loading imparts a predictable constellation of stresses on the joint, including medial tension, lateral compression, and posterior medial shearing...
April 1, 2017: Sports Health
https://www.readbyqxmd.com/read/28287034/exploration-of-us-men-s-professional-sport-organization-concussion-policies
#2
Graham Dean Cochrane, Matthew Owen, Joseph D Ackerson, Matthew H Hale, Sara Gould
Concussion policies are increasingly being developed and adopted among professional sports organizations. We sought to compare the policies of the National Hockey League (NHL), the National Basketball Association (NBA), the National Football League (NFL), and Major League Baseball (MLB). Our objective was to summarize each policy and evaluate the extent to which each policy is organization-specific and/or consistent with medical guidelines. We visited websites for the NHL, NBA, NFL, and MLB. We searched media articles reporting concussion policy...
May 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28229152/an-anionic-metal-organic-framework-with-ternary-building-units-for-rapid-and-selective-adsorption-of-dyes
#3
Shuo Yao, Tong Xu, Nian Zhao, Lirong Zhang, Qisheng Huo, Yunling Liu
A novel metal-organic framework, [(CH3)2NH2]2[Cu3O(SO4)3Cu2L2(DMF)(H2O)]·9DMF (JLU-Liu39) H2L = pyridine-3,5-bis(phenyl-4-carboxylic acid), has been successfully synthesized under solvothermal conditions. Structure analysis indicates that the framework of JLU-Liu39 is constructed by ternary building units which include a rare hexa-nuclear [Cu6O2(SO4)6] cluster, a classical [Cu2(CO2)4] paddlewheel, and a 3-connected hetero-N, O donor ligand. The whole 3D framework possesses a (3,4,4)-connected fjh topology and a large window size of 25...
February 23, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28211114/magnesium-lithospermate-b-from-salvia-miltiorrhiza-bunge-ameliorates-aging-induced-renal-inflammation-and-senescence-via-nadph-oxidase-mediated-reactive-oxygen-generation
#4
Chan Hum Park, Sung Ho Shin, Eun Kyeong Lee, Dae Hyun Kim, Min-Jo Kim, Seong-Soo Roh, Takako Yokozawa, Hae Young Chung
The present study was conducted to examine whether magnesium lithospermate B (MLB) extracted from Salviae miltiorrhizae radix was renoprotective in pathways related to age-related oxidative stress in aged rats. Magnesium lithospermate B was orally administered at a dose of 2- or 8-mg/kg body weight for 16 consecutive days, and the effects were compared with those of vehicle in old and young rats. Magnesium lithospermate B administration to old rats ameliorated renal oxidative stress through reduction of reactive oxygen species...
February 16, 2017: Phytotherapy Research: PTR
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/28164360/new-insights-into-the-spermatogenesis-of-the-black-tiger-prawn-penaeus-monodon
#6
Tianyi Feng, Brian Paterson, Stephen Johnston
This study reports a comprehensive description of penaeid spermatogenesis (Penaeus monodon) by light and transmission electron microscopy. A conspicuous characteristic of spermatocytogenesis was a ring-like structure with high electron-density adjacent to the nucleus of a primary spermatocyte. During the spermiogenesis from stage I (StI) to stage VI spermatid (StVI), the formation of the acrosome and decondensation of the nucleus were the most notable morphological transformations. StIs were small and compact and they were contained in the syncytia...
February 5, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28160922/relative-individual-workload-changes-may-be-a-risk-factor-for-rerupture-of-ulnar-collateral-ligament-reconstruction
#7
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/28113146/statcast-dashboard-exploration-of-spatiotemporal-baseball-data
#8
Marcos Lage, Jorge Piazentin Ono, Daniel Cervone, Justin Chiang, Carlos Dietrich, Claudio T Silva
Major League Baseball (MLB) has a long history of providing detailed, high-quality data, leading to a tremendous surge in sports analytics research in recent years. In 2015, MLB.com released the StatCast spatiotemporal data-tracking system, which has been used in approximately 2,500 games since its inception to capture player and ball locations as well as semantically meaningful game events. This article presents a visualization and analytics infrastructure to help query and facilitate the analysis of this new tracking data...
September 2016: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/28104091/major-league-pitching-workload-after-primary-ulnar-collateral-ligament-reconstruction-and-risk-for-revision-surgery
#9
Robert A Keller, Nima Mehran, Nathan E Marshall, Kelechi R Okoroha, Lafi Khalil, James E Tibone, Vasilios Moutzouros
BACKGROUND: Literature has attempted to correlate pitching workload with risk of ulnar collateral ligament (UCL) injury; however, limited data are available in evaluating workload and its relationship with the need for revision reconstruction in Major League Baseball (MLB) pitchers. METHODS: We identified 29 MLB pitchers who underwent primary UCL reconstruction surgery and subsequently required revision reconstruction and compared them with 121 MLB pitchers who underwent primary reconstruction but did not later require revision surgery...
February 2017: Journal of Shoulder and Elbow Surgery
https://www.readbyqxmd.com/read/27902292/terrimonas-crocea-sp-nov-isolated-from-the-till-of-high-arctic-glacier-midtre-lov%C3%A3-nbreen-in-the-west-svalbard-archipelago
#10
Myong Chol Kim, Ok Chol Kang, Chol Myong Kim, Yumin Zhang, Zuobing Liu, Ziyan Wei, Yao Huang, Wangmu Danzeng, Fang Peng
A yellow-pigmented bacteria strain, designated M1-33108T, was isolated from the till of high Arctic glacier Midtre Lovénbreen (MLB) near Ny-Ålesund, in the West Svalbard Archipelago, Norway. Phylogenetic analysis based on 16S rRNA gene sequences showed that strain M1-33108T belonged to the genus Terrimonas and its closest neighbor was Terrimonas arctica R9-86T with 96.12% 16S rRNA gene sequence similarity. Strain M1-33108T was Gram-reaction-negative, aerobic, non-spore-forming, rod-shaped bacterium that lacked motility...
November 24, 2016: International Journal of Systematic and Evolutionary Microbiology
https://www.readbyqxmd.com/read/27814408/hat-wearing-patterns-in-spectators-attending-baseball-games-a-10-year-retrospective-comparison
#11
Aaron S Farberg, Stephen Donohue, Darrell S Rigel
Spectators at baseball games may receive a considerable amount of exposure to solar UV radiation (UVR). The purpose of this study was to evaluate if public education about sun protection over the last 10 years has impacted the use of hats at Major League Baseball (MLB) games. Photographs of seating sections during a 3-game series in New York, New York, were obtained and analyzed to evaluate the percentage of spectators wearing hats. Different seating sections were evaluated (sunny, shaded, bleachers) and assessed as well as compared to similar data reported 10 years prior...
September 2016: Cutis; Cutaneous Medicine for the Practitioner
https://www.readbyqxmd.com/read/27792742/long-term-culture-of-the-a549-cancer-cell-line-promotes-multilamellar-body-formation-and-differentiation-towards-an-alveolar-type-ii-pneumocyte-phenotype
#12
James Ross Cooper, Muhammad Bilal Abdullatif, Edward C Burnett, Karen E Kempsell, Franco Conforti, Howard Tolley, Jane E Collins, Donna E Davies
Pulmonary research requires models that represent the physiology of alveolar epithelium but concerns with reproducibility, consistency and the technical and ethical challenges of using primary or stem cells has resulted in widespread use of continuous cancer or other immortalized cell lines. The A549 'alveolar' cell line has been available for over four decades but there is an inconsistent view as to its suitability as an appropriate model for primary alveolar type II (ATII) cells. Since most work with A549 cells involves short term culture of proliferating cells, we postulated that culture conditions that reduced proliferation of the cancer cells would promote a more differentiated ATII cell phenotype...
2016: PloS One
https://www.readbyqxmd.com/read/27542317/validation-of-the-airway-dyspnoea-voice-swallow-advs-scale-and-patient-reported-outcome-measure-prom-as-disease-specific-instruments-in-paediatric-laryngotracheal-stenosis
#13
S A R Nouraei, E Makmur, A Dias, C R Butler, R Nandi, M J Elliott, R Hewitt
OBJECTIVE: To validate the Airway-Dyspnoea-Voice-Swallow (ADVS) instrument as a disease-specific Patient-Reported Outcome Measure in paediatric laryngotracheal stenosis. DESIGN: Prospective observational study. SETTING: A quaternary referral centre for complex airway disease. PARTICIPANTS: Forty-eight patients (30 males) with a mean age of 49 ± 49 months who underwent laryngotracheal surgery or microlaryngoscopy and bronchoscopy (MLB) following laryngotracheal surgery...
August 20, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27522980/performance-metrics-in-professional-baseball-pitchers-before-and-after-surgical-treatment-for-neurogenic-thoracic-outlet-syndrome
#14
COMPARATIVE STUDY
Robert W Thompson, Corey Dawkins, Chandu Vemuri, Michael W Mulholland, Tyler D Hadzinsky, Gregory J Pearl
BACKGROUND: High-performance throwing athletes may be susceptible to the development of neurogenic thoracic outlet syndrome (NTOS). This condition can be career-threatening but the outcomes of treatment for NTOS in elite athletes have not been well characterized. The purpose of this study was to utilize objective performance metrics to evaluate the impact of surgical treatment for NTOS in Major League Baseball (MLB) pitchers. METHODS: Thirteen established MLB pitchers underwent operations for NTOS between July 2001 and July 2014...
February 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27519677/performance-and-injury-characteristics-of-pitchers-entering-the-major-league-baseball-draft-after-ulnar-collateral-ligament-reconstruction
#15
Lucas Wymore, Paul Chin, Christopher Geary, Gregory Carolan, Daniel Keefe, Heinz Hoenecke, Jan Fronek
BACKGROUND: Ulnar collateral ligament (UCL) reconstruction (UCLR) has been studied and shown to be a successful procedure for returning overhead athletes to sport. Many studies of Major League Baseball (MLB) players have shown high levels of return to play with successful statistical performance. No study has followed professional advancement of drafted pitchers who underwent UCLR as amateurs when compared with drafted pitchers who did not undergo the procedure before selection in the MLB draft...
December 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27434149/novel-human-astroviruses-novel-human-diseases
#16
REVIEW
Diem-Lan Vu, Samuel Cordey, Francisco Brito, Laurent Kaiser
Astroviruses are small, non-enveloped, single-stranded positive RNA viruses that belong to the Astroviridae family. While classical human astroviruses (HAstV) are a well-recognized cause of acute non-bacterial diarrhea among young children worldwide, novel astroviruses, named HAstV-MLB and HAstV-VA/HMO, have been identified recently in humans by molecular assays. They are phylogenetically more related to animal astroviruses than to classical human astroviruses, thus suggesting cross-species transmission. Serological studies demonstrated a surprisingly high seroprevalence in certain populations and highlighted a high infection rate in the early years of life...
September 2016: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/27434082/impact-of-12-s-rule-on-performance-and-muscle-damage-of-baseball-pitchers
#17
Sun-Chin Yang, Chia-Chi Wang, Shin-Da Lee, Yu Chung Lee, Kuei-Hui Chan, Yi-Liang Chen, Donovan L Fogt, Chia-Hua Kuo
INTRODUCTION: A recent US Major League Baseball (MLB) rule change requires baseball pitchers to deliver pitches within 12 sec. PURPOSES: To examine the effect of three, between-pitch rest intervals on throwing performance during a simulated 7-inning game and muscle damage during post-game recovery. DESIGN: A randomized counter-balanced study. METHODS: Seven intercollegiate pitchers threw 15 pitches per inning for 7 innings with rest interval trials of 8, 12, and 20 sec between pitches and 5 min between innings...
July 18, 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27400718/should-we-limit-innings-pitched-after-ulnar-collateral-ligament-reconstruction-in-major-league-baseball-pitchers
#18
Brandon J Erickson, Gregory L Cvetanovich, Bernard R Bach, Charles A Bush-Joseph, Nikhil N Verma, Anthony A Romeo
BACKGROUND: Ulnar collateral ligament reconstruction (UCLR) has become a common procedure among Major League Baseball (MLB) pitchers. It is unclear if a limit on innings pitched after UCLR should be instituted to prevent revision UCLR. HYPOTHESIS: Number of innings pitched and number of pitches thrown after UCLR will not affect whether a pitcher requires a revision UCLR. STUDY DESIGN: Descriptive laboratory study. METHODS: All MLB pitchers between 1974 and 2015 who pitched at least 1 full season after UCLR were included in this study...
September 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/27371794/enhanced-succinate-production-from-glycerol-by-engineered-escherichia-coli-strains
#19
Qing Li, Hui Wu, Zhimin Li, Qin Ye
In this study, an engineered strain Escherichia coli MLB (ldhA(-)pflB(-)) was constructed for production of succinate from glycerol. The succinate yield was 0.37mol/mol in anaerobic culture, however, the growth and glycerol consumption rates were very slow, resulting in a low succinate level. Two-stage fermentation was performed in flasks, and the succinate yield reached 0.93mol/mol, but the succinate titer was still low. Hence, overexpression of malate dehydrogenase, malic enzyme, phosphoenolpyruvate (PEP) carboxylase and PEP carboxykinase (PCK) from E...
October 2016: Bioresource Technology
https://www.readbyqxmd.com/read/27350954/pitch-characteristics-before-ulnar-collateral-ligament-reconstruction-in-major-league-pitchers-compared-with-age-matched-controls
#20
John Prodromo, Nimit Patel, Neil Kumar, Kevin Denehy, Loni Philip Tabb, James Tom
BACKGROUND: Ulnar collateral ligament reconstruction (UCLR) is commonly performed in Major League Baseball (MLB) pitchers, but little is known about the preoperative pitch type and velocity characteristics of pitchers who go on to undergo UCLR. HYPOTHESIS: Pitchers who required UCLR have thrown a greater percentage of fastballs and have greater pitch velocities compared with age-matched controls in the season before injury. STUDY DESIGN: Case-control study; Level of evidence, 3...
June 2016: Orthopaedic Journal of Sports Medicine
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