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Sports genetics

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https://www.readbyqxmd.com/read/28080077/dogs-canis-familiaris-attention-to-human-perception-influence-of-breed-groups-and-life-experiences
#1
Marianne T E Heberlein, Dennis C Turner, Marta B Manser
Attending to the perception of others may help individuals gaining information from conspecifics, or help in competitive situations. Dogs (Canis familiaris) are attentive to humans' signals and their attentional state. We investigated whether dogs of different breed groups differ in their ability to pay attention to human's perception, first according to the genetic relatedness between dog breeds, and second according to working style differences. Once dogs had learned to leave forbidden food on the floor, they were confronted with 2 food items to which only they had unrestricted visual access...
January 12, 2017: Journal of Comparative Psychology
https://www.readbyqxmd.com/read/28074345/the-beneficial-effects-of-physical-activity-is-it-down-to-your-genes-a-systematic-review-and-meta-analysis-of-twin-and-family-studies
#2
REVIEW
J R Zadro, D Shirley, T B Andrade, K J Scurrah, A Bauman, P H Ferreira
BACKGROUND: There is evidence for considerable heterogeneity in the responsiveness to regular physical activity (PA) which might reflect the influence of genetic factors. The aim of this systematic review was to assess whether the response to a PA intervention for measures of body composition and cardiorespiratory fitness is (i) correlated within twin pairs and/or families and (ii) more correlated in monozygotic twins (MZ) compared to dizygotic twins (DZ), which would be consistent with genetic effects...
December 2017: Sports Medicine—Open
https://www.readbyqxmd.com/read/28039429/limited-potential-of-genetic-predisposition-scores-to-predict-muscle-mass-and-strength-performance-in-flemish-caucasians-between-19-73-years-of-age
#3
Ruben Charlier, Maarten Caspers, Sara Knaeps, Evelien Mertens, Diether Lambrechts, Johan Lefevre, Martine Thomis
Since both muscle mass and strength performance are polygenic in nature, the current study compared four Genetic Predisposition Scores (GPS) in their ability to predict these phenotypes. Data were gathered within the framework of the first generation Flemish Policy Research Centre 'Sport, Physical Activity and Health' (2002-2004). Results are based on muscle characteristics data of 565 Flemish Caucasians (19-73 yr, 365 men). Skeletal muscle mass (SMM) was determined using bioelectrical impedance. The Biodex dynamometer was used to measure isometric (PTstatic120°) and isokinetic strength (PTdynamic60° and PTdynamic240°), ballistic movement speed (S20%) and muscular endurance (Work) of the knee extensors...
December 30, 2016: Physiological Genomics
https://www.readbyqxmd.com/read/28007336/the-combined-frequency-of-igf-and-myostatin-polymorphism-among-track-field-athletes-and-swimmers
#4
Sigal Ben-Zaken, Yoav Meckel, Dan Nemet, Alon Eliakim
OBJECTIVE: The IGF C-1245T (rs35767) and the myostatin (MSTN) Lys(K)-153Arg(R) genetic polymorphism may influence skeletal muscle phenotypes and athletic performance. Carrying the minor IGF T allele and the myostatin rare R allele was associated with higher circulating IGF-I levels, greater muscle mass and improved performance. The aim of the present study was to assess the combined frequency of the IGF 1245T (rs35767) and MSTN 153Arg(R) polymorphism among Israeli track and field athletes (n=111) and swimmers (n=80)...
December 15, 2016: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/27991836/correlations-between-col2a-and-aggrecan-genetic-polymorphisms-and-the-risk-and-clinicopathological-features-of-intervertebral-disc-degeneration-in-a-chinese-han-population-a-case-control-study
#5
Yu Deng, Xin-Ti Tan, Qiang Wu, Xin Wang
OBJECTIVES: This case-control study was designed to evaluate the association of three COL2A1 single nucleotide polymorphism (SNPs) (rs1793953, rs2276454, and rs1793937) and Aggrecan variable number of tandem repeat (VNTR) polymorphisms with the risk and clinicopathological features of intervertebral disc degeneration (IVDD) in a Chinese Han population. MATERIALS AND METHODS: Data from 295 IVDD patients (case group) and 324 healthy volunteers (control group) were collected between January 2012 and December 2014...
December 19, 2016: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/27966054/lifestyle-risk-factors-for-breast-cancer-in-brca1-2-mutation-carriers-around-childbearing-age
#6
A van Erkelens, L Derks, A S Sie, L Egbers, G Woldringh, J B Prins, P Manders, N Hoogerbrugge
BRCA1/2-mutation carriers are at high risk of breast cancer (BC) and ovarian cancer. Physical inactivity, overweight (body mass index ≥25, BMI), smoking, and alcohol consumption are jointly responsible for about 1 in 4 postmenopausal BC cases in the general population. Limited evidence suggests physical activity also increases BC risk in BRCA1/2-mutation carriers. Women who have children often reduce physical activity and have weight gain, which increases BC risk. We assessed aforementioned lifestyle factors in a cohort of 268 BRCA1/2-mutation carriers around childbearing age (born between 1968 and 1983, median age 33 years, range 21-44)...
December 13, 2016: Journal of Genetic Counseling
https://www.readbyqxmd.com/read/27928207/the-agt-gene-m235t-polymorphism-and-response-of-power-related-variables-to-aerobic-training
#7
Zarębska Aleksandra, Jastrzębski Zbigniew, Moska Waldemar, Leońska-Duniec Agata, Kaczmarczyk Mariusz, Sawczuk Marek, Maciejewska-Skrendo Agnieszka, Żmijewski Piotr, Ficek Krzysztof, Trybek Grzegorz, Lulińska-Kuklik Ewelina, Ekaterina A Semenova, Ildus I Ahmetov, Cięszczyk Paweł
The C allele of the M235T (rs699) polymorphism of the AGT gene correlates with higher levels of angiotensin II and has been associated with power and strength sport performance. The aim of the study was to investigate whether or not selected power-related variables and their response to a 12-week program of aerobic dance training are modulated by the AGT M235T genotype in healthy participants. Two hundred and one Polish Caucasian women aged 21 ± 1 years met the inclusion criteria and were included in the study...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27928199/association-of-anxiety-related-polymorphisms-with-sports-performance-in-chilean-long-distance-triathletes-a-pilot-study
#8
Jorge A Sanhueza, Tomás Zambrano, Carlos Bahamondes-Avila, Luis A Salazar
Different factors affecting athletic performance are well established: intensity and type of training, anthropometric characteristics as well as an important psychological component. However, the contribution of the genetic background has been less investigated. The aim of the present study was to investigate the influence of polymorphisms within genes associated with stress and anxiety (5HTT, CRH2R, ACE, NK1R, 5HT1AR and CRF-BP) on the physical capability and sports performance in triathletes. One hundred and ninety two (192) unrelated Chilean triathletes who participated in the 2014 70...
December 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27910804/sudden-cardiac-death-a-nationwide-cohort-study-among-the-young
#9
Bjarke Risgaard
Sudden cardiac death (SCD) is a tragic event affecting millions of individuals worldwide. Although several studies have investigated the epidemiology of SCD, these studies may have been affected by reporting and referral biases, which are reflected in the very different incidence rates and causes of deaths that have previously been reported. Among SCD victims aged < 36 years, inherited cardiac diseases are well known to play an important role. However, the extent to which inherited cardiac diseases also play a role in SCD victims aged < 50 years has not been completely described...
December 2016: Danish Medical Journal
https://www.readbyqxmd.com/read/27903671/sports-related-lung-injury-during-breath-hold-diving
#10
Tanja Mijacika, Zeljko Dujic
The number of people practising recreational breath-hold diving is constantly growing, thereby increasing the need for knowledge of the acute and chronic effects such a sport could have on the health of participants. Breath-hold diving is potentially dangerous, mainly because of associated extreme environmental factors such as increased hydrostatic pressure, hypoxia, hypercapnia, hypothermia and strenuous exercise.In this article we focus on the effects of breath-hold diving on pulmonary function. Respiratory symptoms have been reported in almost 25% of breath-hold divers after repetitive diving sessions...
December 2016: European Respiratory Review: An Official Journal of the European Respiratory Society
https://www.readbyqxmd.com/read/27900193/exertional-rhabdomyolysis-physiological-response-or-manifestation-of-an-underlying-myopathy
#11
Renata S Scalco, Marc Snoeck, Ros Quinlivan, Susan Treves, Pascal Laforét, Heinz Jungbluth, Nicol C Voermans
Exertional rhabdomyolysis is characterised by muscle breakdown associated with strenuous exercise or normal exercise under extreme circumstances. Key features are severe muscle pain and sudden transient elevation of serum creatine kinase (CK) levels with or without associated myoglobinuria. Mild cases may remain unnoticed or undiagnosed. Exertional rhabdomyolysis is well described among athletes and military personnel, but may occur in anybody exposed to unaccustomed exercise. In contrast, exertional rhabdomyolysis may be the first manifestation of a genetic muscle disease that lowers the exercise threshold for developing muscle breakdown...
2016: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/27899345/ethics-of-genetic-testing-and-research-in-sport-a-position-statement-from-the-australian-institute-of-sport
#12
Nicole Vlahovich, Peter A Fricker, Matthew A Brown, David Hughes
As Australia's peak high-performance sport agency, the Australian Institute of Sport (AIS) has developed this position statement to address the implications of recent advances in the field of genetics and the ramifications for the health and well-being of athletes. Genetic testing has proven of value in the practice of clinical medicine. There are, however, currently no scientific grounds for the use of genetic testing for athletic performance improvement, sport selection or talent identification. Athletes and coaches should be discouraged from using direct-to-consumer genetic testing because of its lack of validation and replicability and the lack of involvement of a medical practitioner in the process...
January 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/27873371/getting-a-sporting-chance-title-ix-and-the-intergenerational-transmission-of-health
#13
Lisa Schulkind
We know that healthier mothers tend to have healthier infants, but we do not know how much of that relationship reflects the intergenerational transmission of genetic attributes versus environmental influences. From a policy perspective, it is crucial to understand which environmental influences are important and whether investments in one generation affect outcomes for the next. I use variation in the implementation of Title IX to measure the effects of increased athletic opportunities on the health of infants...
November 22, 2016: Health Economics
https://www.readbyqxmd.com/read/27829969/chronic-traumatic-encephalopathy-in-athletes-involved-with-high-impact-sports
#14
Cyrus Safinia, Eric M Bershad, H Brent Clark, Karen SantaCruz, Naila Alakbarova, Jose I Suarez, Afshin A Divani
BACKGROUND AND PURPOSE: Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease occurring most commonly in athletes and is caused by repeated concussive or subconcussive blows to the head. The main purpose of this review is to evaluate the published literature on chronic traumatic encephalopathy (CTE) in athletes participating in high-impact sports. In particular, we highlight the significance of concussive and subconcussive impacts in multiple sports, elucidate the differences between clinical/pathological features of CTE and related neurodegenerative diseases, and provide an explanation for the variation in clinical presentation between athletes of different sports...
October 2016: Journal of Vascular and Interventional Neurology
https://www.readbyqxmd.com/read/27736250/olympic-genes-on-the-podium
#15
Fabian Sanchis-Gomar, Helios Pareja-Galeano, Jose A Rodriguez-Marroyo, Jos J de Koning, Alejandro Lucia, Carl Foster
Despite some advances, it remains largely unknown how the millions of variations in the human genome influence athletic performance (especially in endurance events), and no single genetic test can really predict sports talent. However, there is experimental evidence from animal research that selecting for even a simple characteristic such as running ability can produce comparatively large and rapid changes in performance. That such selection has not been specifically documented in humans is more evidence of the limits of physiology-archeology than of the unlikelihood of selection for physical abilities...
October 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27717280/evaluation-of-fibronectin-1-in-one-dried-blood-spot-and-in-urine-after-rhgh-treatment
#16
P Ferro, R Ventura, C Pérez-Mañá, M Farré, J Segura
Since the appearance of recombinant human growth hormone (rhGH) in the 1980s, its expansion and acquisition through the black market has increased, so the detection of its abuse continues to be a challenge. New biomarkers that are more reliable and sensitive, allowing a larger detection window, are still needed. In this line, Fibronectin 1 (FN1) has been proposed as a potential genetic and protein biomarker of rhGH abuse in peripheral blood lymphocytes, serum, and plasma. However, logistic problems associated with current blood collection in sports drug testing point towards potential new alternative matrices that could be good candidates to be evaluated...
October 7, 2016: Drug Testing and Analysis
https://www.readbyqxmd.com/read/27707537/exercise-in-patients-with-hypertrophic-cardiomyopathy-a-review-of-current-evidence-national-guideline-recommendations-and-a-proposal-for-a-new-direction-to-fitness
#17
Waseem Hindieh, Arnon Adler, Adaya Weissler-Snir, Dana Fourey, Sarah Harris, Harry Rakowski
Hypertrophic cardiomyopathy is a common genetic disorder with a prevalence of 1:500 in the general population. Amongst a varied spectrum of clinical presentations, the most feared complication of this cardiac disorder is sudden cardiac death. Although only a minority of patients with hypertrophic cardiomyopathy who suffer sudden cardiac death or resuscitated cardiac arrest do so during exercise, strenuous physical activity is regarded as an important trigger for these tragic outcomes. Furthermore, during exercise, patients with hypertrophic cardiomyopathy may develop augmentation of left ventricular outflow tract obstruction, myocardial ischemia, diastolic dysfunction and/or inappropriate vasodilation in non-exercising vascular beds...
September 20, 2016: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/27706926/discordant-genotyping-results-using-dna-isolated-from-anti-doping-control-urine-samples
#18
Eva Choong, Jenny J Schulze, Magnus Ericsson, Anders Rane, Lena Ekström
The UGT2B17 gene deletion polymorphism is known to correlate to urinary concentration of testosterone-glucuronide and hence this genotype exerts a large impact on the testosterone/epitestosterone (T/E) ratio, a biomarker for testosterone doping. The objective of this study was to assess if DNA isolated from athletes' urine samples (n = 713) obtained in routine doping controls could be targeted for genotyping analysis for future integration in the athlete's passport. A control population (n = 21) including both urine and blood DNA was used for genotyping concordance test...
October 5, 2016: Drug Testing and Analysis
https://www.readbyqxmd.com/read/27678258/genetic-correlations-between-dressage-show-jumping-and-studbook-entry-inspection-traits-in-a-process-of-specialization-in-dutch-warmblood-horses
#19
G Rovere, B J Ducro, J A M van Arendonk, E Norberg, P Madsen
Sport performance in dressage and show jumping are two important traits in the breeding goals of many studbooks. To determine the optimum selection scheme for jumping and dressage, knowledge is needed on the genetic correlation between both disciplines and between traits measured early in life and performance in competition in each discipline. This study aimed to estimate genetic parameters to support decision-making on specialization of breeding horses for dressage and show jumping in Dutch warmblood horses...
September 27, 2016: Journal of Animal Breeding and Genetics, Zeitschrift Für Tierzüchtung und Züchtungsbiologie
https://www.readbyqxmd.com/read/27671890/angiogenesis-in-alkaptonuria
#20
Lia Millucci, Giulia Bernardini, Barbara Marzocchi, Daniela Braconi, Michela Geminiani, Silvia Gambassi, Marcella Laschi, Bruno Frediani, Federico Galvagni, Maurizio Orlandini, Annalisa Santucci
Alkaptonuria (AKU) is a rare genetic disease that affects the entire joint. Current standard of AKU treatment is palliative and little is known about its physiopathology. Neovascularization is involved in the pathogenesis of systemic inflammatory rheumatic diseases, a family of related disorders that includes AKU. Here, we investigated the presence of neoangiogenesis in AKU synovium and healthy controls. Synovium from AKU patients, who had undergone total joint replacement or arthroscopy, or from healthy patients without any history of rheumatic diseases, who underwent surgical operation following sport trauma was subjected to hematoxylin and eosin staining...
November 2016: Journal of Inherited Metabolic Disease
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