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Injury prevention, cycling

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https://www.readbyqxmd.com/read/28227317/co-activation-periods-of-gastrocnemius-and-vastus-lateralis-during-walking-evaluated-by-surface-electromyography
#1
Alessandro Mengarelli, Annachiara Strazza, Agnese Sbrollini, Angela Agostinelli, Laura Burattini, Sandro Fioretti, Francesco Di Nardo, Alessandro Mengarelli, Annachiara Strazza, Agnese Sbrollini, Angela Agostinelli, Laura Burattini, Sandro Fioretti, Francesco Di Nardo, Alessandro Mengarelli, Sandro Fioretti, Agnese Sbrollini, Annachiara Strazza, Laura Burattini, Angela Agostinelli, Francesco Di Nardo
"In vivo" studies reported that the co-activation of gastrocnemius and quadriceps femoris (QF) muscles produces ACL strain values greater than those caused by an isolated activation of either muscle. Aim of this study was to assess the co-activation of gastrocnemius (lateral head, GL) and vastus lateralis (VL) in healthy and young adults during walking. To this purpose the Statistical Gait Analysis was performed, that allows a characterization of gait considering hundreds of strides belonging to the same walking trial...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28213288/inhibition-of-estrogen-related-receptor-%C3%AE-attenuates-vascular-smooth-muscle-cell-proliferation-and-migration-by-regulating-rhoa-p27-kip1-and-%C3%AE-catenin-wnt4-signaling-pathway
#2
Qunyi Li, Lei Zhu, Liudi Zhang, Haifei Chen, Yingfeng Zhu, Yongli Du, Wanxian Zhong, Mingkang Zhong, Xiaojin Shi
RhoA/p27(Kip1) and β-Catenin/Wnt4 signaling processes play central roles in proliferation and migration in vascular smooth muscle cells (VSMCs). ERRα, a member of orphan nuclear receptors, is a potent prognostic factor in breast, ovarian, colon and other types of tumors. However, biological significance of ERRα in VSMCs as well as the molecular mechanisms remains largely unknown. Therefore, the present study was designed to investigate whether ERRα is involved in the proliferation and migration of VSMCs in vitro and neointimal formation in vivo...
February 14, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28209593/comparing-icd-10-external-cause-codes-for-pedal-cyclists-with-self-reported-crash-details
#3
Ben Beck, Christina L Ekegren, Peter Cameron, Mark Stevenson, Rodney Judson, Andrew Bucknill, Elton Edwards, Belinda Gabbe
Accurate coding of injury event information is critical in developing targeted injury prevention strategies. However, little is known about the validity of the most universally used coding system, the International Classification of Diseases (ICD-10), in characterising crash counterparts in pedal cycling events. This study aimed to determine the agreement between hospital-coded ICD-10-AM (Australian modification) external cause codes with self-reported crash characteristics in a sample of pedal cyclists admitted to hospital following bicycle crashes...
February 16, 2017: Injury Prevention: Journal of the International Society for Child and Adolescent Injury Prevention
https://www.readbyqxmd.com/read/28168519/pcna-is-recruited-to-irradiated-chromatin-in-late-s-phase-and-is-most-pronounced-in-g2-phase-of-the-cell-cycle
#4
Eva Bártová, Jana Suchánková, Soňa Legartová, Barbora Malyšková, Matúš Hornáček, Magdalena Skalníková, Martin Mašata, Ivan Raška, Stanislav Kozubek
DNA repair is a complex process that prevents genomic instability. Many proteins play fundamental roles in regulating the optimal repair of DNA lesions. Proliferating cell nuclear antigen (PCNA) is a key factor that initiates recombination-associated DNA synthesis after injury. Here, in very early S-phase, we show that the fluorescence intensity of mCherry-tagged PCNA after local micro-irradiation was less than the fluorescence intensity of non-irradiated mCherry-PCNA-positive replication foci. However, PCNA protein accumulated at locally irradiated chromatin in very late S-phase of the cell cycle, and this effect was more pronounced in the following G2 phase...
January 20, 2017: Protoplasma
https://www.readbyqxmd.com/read/28141600/preventing-pressure-injuries-in-neonates-undergoing-therapeutic-hypothermia-for-hypoxic-ischemic-encephalopathy-an-interprofessional-quality-improvement-project
#5
Alexandra Luton, Jae Hernandez, Clive Robert Patterson, Jill Nielsen-Farrell, Anita Thompson, Jeffrey R Kaiser
BACKGROUND: Hospital-acquired pressure injuries (HAPIs) can be caused by multiple factors including pressure, shear, friction, moisture/incontinence, device-related pressure, immobility, inactivity, and nutritional deficits. Along with immobility, medical device-related (MDR) HAPIs are a primary cause of pressure injury in neonates, as the clinical practice setting has become increasingly technologically advanced. It is estimated that up to 50% of HAPIs are MDR in pediatric patients. Neonates are at particular risk for HAPI because of their specific anatomical, physiological, and developmental vulnerabilities...
January 30, 2017: Advances in Neonatal Care: Official Journal of the National Association of Neonatal Nurses
https://www.readbyqxmd.com/read/28127491/sterile-neuroinflammation-and-strategies-for-therapeutic-intervention
#6
REVIEW
Manoj Banjara, Chaitali Ghosh
Sterile neuroinflammation is essential for the proper brain development and tissue repair. However, uncontrolled neuroinflammation plays a major role in the pathogenesis of various disease processes. The endogenous intracellular molecules so called damage-associated molecular patterns or alarmins or damage signals that are released by activated or necrotic cells are thought to play a crucial role in initiating an immune response. Sterile inflammatory response that occurs in Alzheimer's disease (AD), Parkinson's disease (PD), stroke, hemorrhage, epilepsy, or traumatic brain injury (TBI) creates a vicious cycle of unrestrained inflammation, driving progressive neurodegeneration...
2017: International Journal of Inflammation
https://www.readbyqxmd.com/read/28123000/dual-role-of-epidermal-growth-factor-receptor-in-liver-injury-and-regeneration-after-acetaminophen-overdose-in-mice
#7
Bharat Bhushan, Hemantkumar Chavan, Prachi Borude, Yuchao Xie, Kuo Du, Mitchell R McGill, Margitta Lebofsky, Hartmut Jaeschke, Partha Krishnamurthy, Udayan Apte
Epidermal growth factor receptor (EGFR) plays a crucial role in hepatocyte proliferation. Its role in acetaminophen (APAP)-mediated hepatotoxicity and subsequent liver regeneration is completely unknown. Role of EGFR after APAP-overdose in mice was studied using pharmacological inhibition strategy. Rapid, sustained and dose-dependent activation of EGFR was noted after APAP-treatment in mice, which was triggered by glutathione depletion. EGFR-activation was also observed in primary human hepatocytes after APAP-treatment, preceding elevation of toxicity markers...
February 2017: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/28118979/fatigue-injury-risk-in-anterior-cruciate-ligament-of-target-side-knee-during-golf-swing
#8
Tserenchimed Purevsuren, Moon Seok Kwon, Won Man Park, Kyungsoo Kim, Seung Ho Jang, Young-Tae Lim, Yoon Hyuk Kim
A golf-related ACL injury can be linked with excessive golf play or practice because such over-use by repetitive golf swing motions can increase damage accumulation to the ACL bundles. In this study, joint angular rotations, forces, and moments, as well as the forces and strains on the ACL of the target-side knee joint, were investigated for ten professional golfers using the multi-body lower extremity model. The fatigue life of the ACL was also predicted by assuming the estimated ACL force as a cyclic load...
December 14, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/28108987/activation-of-sirt1-by-human-chorionic-gonadotropin-exerts-a-therapeutic-effect-on-hepatic-injury-and-inflammation
#9
Caroline Steinmetz, Anubha Kashyap, Nataliya Zhivkova, Henry Alizor, Isabell Ernst, Daniela Gottfried-Brand, Henning Janssen, Andreas Teufel, Henning Schulze-Bergkamen, Johannes Lotz, Jürgen Kuball, Matthias Theobald, Michael Heise, Hauke Lang, Peter R Galle, Dennis Strand, Susanne Strand
: The incidence and prevalence of inflammatory liver diseases has increased over the last years but therapeutic options are limited. Pregnancy induces a state of immune tolerance, which can result in spontaneous improvement of clinical symptoms of certain autoimmune diseases including autoimmune hepatitis (AIH). We investigated the immune suppressive mechanisms of the human pregnancy hormone chorionic gonadotropin (hCG) in the liver. HCG signaling activates SIRT1, which deacetylates FOXO3a, leading to repression of pro-apoptotic gene expression...
January 21, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28099126/aminoguanidine-pretreatment-prevents-methotrexate-induced-small-intestinal-injury-in-the-rat-by-attenuating-nitrosative-stress-and-restoring-the-activities-of-vital-mitochondrial-enzymes
#10
Kasthuri Natarajan, Premila Abraham, Rekha Kota, Dhayakani Selvakumar
BACKGROUND: One of the major toxic side effects of methotrexate (MTX) is enterocolitis, for which there is no efficient standard treatment. Nitric oxide overproduction has been reported to play an important role in MTX-induced mucositis. This study was designed to investigate whether pretreatment with aminoguanidine (AG) - a selective iNOS inhibitor - prevents MTX-induced mucositis in rats. MATERIALS AND METHODS: Rats were pretreated with AG (30 and 50 mg/kg body weight) i...
January 18, 2017: Journal of Basic and Clinical Physiology and Pharmacology
https://www.readbyqxmd.com/read/28093038/metabonomic-strategy-to-the-evaluation-of-chinese-medicine-salvia-miltiorrhiza-and-dalbergia-odorifera-interfering-myocardial-ischemia-reperfusion-injury-in-rats
#11
Fei Mu, Jialin Duan, Haixu Bian, Xiaohu Zhai, Peijin Shang, Rui Lin, Meina Zhao, Dongmei Hu, Ying Yin, Aidong Wen, Miaomiao Xi
Extract of Salvia miltiorrhiza and Dalbergia Odorifera (SM-DOO) has been traditionally used for the prevention and treatment of cardiovascular diseases. However, information regarding the pharmacodyamic material basis and potential mechanism remain unknown. Male Sprague-Dawley rats were divided into four groups: Sham, Model, Diltiazem and SM-DOO group, n=6. Rats were pretreated with homologous drugs for 7 days, then subjected to 30 min of ischemia followed by 180 min of reperfusion. Cardioprotection effects of SM-DOO on myocardial ischemia/reperfusion (MI/R) injury rats were examined by hemodynamic, infarct area, histopathology, biochemical indicators and western blot analysis...
January 16, 2017: Rejuvenation Research
https://www.readbyqxmd.com/read/28062495/therapeutic-targeting-of-rna-polymerase-i-with-the-small-molecule-cx-5461-for-prevention-of-arterial-injury-induced-neointimal-hyperplasia
#12
Qing Ye, Shu Pang, Wenjing Zhang, Xiaotong Guo, Jianli Wang, Yongtao Zhang, Yang Liu, Xiao Wu, Fan Jiang
OBJECTIVE: RNA polymerase I (Pol I)-dependent rRNA synthesis is a determinant factor in ribosome biogenesis and thus cell proliferation. The importance of dysregulated Pol I activity in cardiovascular disease, however, has not been recognized. Here, we tested the hypothesis that specific inhibition of Pol I might prevent arterial injury-induced neointimal hyperplasia. APPROACH AND RESULTS: CX-5461 is a novel selective Pol I inhibitor. Using this tool, we demonstrated that local inhibition of Pol I blocked balloon injury-induced neointima formation in rat carotid arteries in vivo...
January 5, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28051192/global-warming-and-its-health-impact
#13
Antonella Rossati
Since the mid-19th century, human activities have increased greenhouse gases such as carbon dioxide, methane, and nitrous oxide in the Earth's atmosphere that resulted in increased average temperature. The effects of rising temperature include soil degradation, loss of productivity of agricultural land, desertification, loss of biodiversity, degradation of ecosystems, reduced fresh-water resources, acidification of the oceans, and the disruption and depletion of stratospheric ozone. All these have an impact on human health, causing non-communicable diseases such as injuries during natural disasters, malnutrition during famine, and increased mortality during heat waves due to complications in chronically ill patients...
January 2017: International Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28049899/the-incidence-of-cisplatin-induced-hypomagnesemia-in-cervical-cancer-patients-receiving-cisplatin-alone
#14
Yoshihiro Yamamoto, Kazushi Watanabe, Hiroshi Matsushita, Ikuto Tsukiyama, Katsuhiko Matsuura, Akihiko Wakatsuki
 Hypomagnesemia is one side effect in patients receiving cisplatin. However, there are few reports of cisplatin-induced hypomagnesemia in Japan. We retrospectively investigated the incidence of hypomagnesemia and nephrotoxicity in patients undergoing radiation therapy who were treated with cisplatin alone (dosage: 40 mg/m(2), administration interval: 1 week) for cervical cancer. Thirty-two patients undergoing radiation therapy who received cisplatin alone for cervical cancer between January 2012 and May 2016 at Aichi Medical University Hospital were included...
2017: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/28012089/orexin-and-alzheimer-s-disease
#15
Claudio Liguori
Alzheimer's disease (AD) is the most frequent age-related dementia. It prevalently causes cognitive decline, although it is frequently associated with secondary behavioral disturbances. AD neurodegeneration characteristically produces a remarkable destruction of the sleep-wake cycle, with diurnal napping, nighttime arousals, sleep fragmentation, and REM sleep impairment. It was recently hypothesized that the orexinergic system was involved in AD pathology. Accordingly, recent papers showed the association between orexinergic neurotransmission dysfunction, sleep impairment, and cognitive decline in AD...
December 24, 2016: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/27978507/snail-and-kidney-fibrosis
#16
REVIEW
Noémie Simon-Tillaux, Alexandre Hertig
Snail family zinc finger 1 (SNAI1) is a transcription factor expressed during renal embryogenesis, and re-expressed in various settings of acute kidney injury (AKI). Subjected to tight regulation, SNAI1 controls major biological processes responsible for renal fibrogenesis, including mesenchymal reprogramming of tubular epithelial cells, shutdown of fatty acid metabolism, cell cycle arrest and inflammation of the microenvironment surrounding tubular epithelial cells. The present review describes in detail the interactions of SNAI1 with AKI-associated signalling pathways...
October 6, 2016: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/27957288/esophageal-cancer-in-golestan-province-iran-a-review-of-genetic-susceptibility-and-environmental-risk-factors
#17
REVIEW
Mahin Gholipour, Farhad Islami, Gholamreza Roshandel, Masoud Khoshnia, Abbas Badakhshan, Abdolvahab Moradi, Reza Malekzadeh
Esophageal squamous cell carcinoma (ESCC) is an aggressive tumor that is typically diagnosed only when the tumor has gained remarkable size, extended to peripheral tissues, and led to dysphagia. Five-year survival of advanced cancer is still very poor (19%), even with improved surgical techniques and adjuvant chemoradiation therapy. Therefore, early detection and prevention are the most important strategies to reduce the burden of ESCC. Our review will focus on the studies conducted in Golestan province, an area with a high prevalence of ESCC in northern Iran...
October 2016: Middle East Journal of Digestive Diseases
https://www.readbyqxmd.com/read/27941275/increased-postural-sway-and-changes-in-the-neuromuscular-activities-of-the-ankle-stabilizing-muscles-at-ovulation-in-healthy-young-women
#18
Haneul Lee, JongEun Yim
Lateral ankle sprains are one of the most common injuries among the physically active subjects. Ankle inversion-eversion laxity is greater and dynamic postural control is less in women compared with men. The purpose of this study was to examine differences in postural sway and its effects on the neuromuscular activities of the ankle stabilizing muscles during the menstrual cycle in young women. Fourteen young women with regular menstrual cycles participated in this experiment. Postural sway and electromyographic signals of the lateral gastrocnemius, peroneus longus (PL), and tibialis anterior (TA) were recorded while the participants performed eight different balance tasks at ovulation and early follicular phase during one full menstrual cycle...
2016: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27935559/application-of-a-model-to-analyze-shoulder-biomechanics-in-adult-patients-with-spinal-cord-injury-when-walking-with-crutches-in-two-different-gait-patterns
#19
Enrique Perez-Rizo, Fernando Trincado-Alonso, Soraya Pérez-Nombela, Antonio Del Ama-Espinosa, Fernando Jiménez-Díaz, Vicente Lozano-Berrio, Angel Gil-Agudo
BACKGROUND: Specific biomechanical models have been developed to study gait using crutches. Clinical application of these models is needed in adult spinal cord injury (SCI) population walking with different patterns of gait with crutches to prevent overuse shoulder injuries. OBJECTIVE: To apply a biomechanical model in a clinical environment to analyze shoulder in adult SCI patients walking with two different patterns of gait with crutches: two point reciprocal gait (RG) and swing-through gait (SG)...
December 8, 2016: NeuroRehabilitation
https://www.readbyqxmd.com/read/27923659/matrilin-2-regulates-proliferation-apoptosis-and-cell-cycle-during-radiation-induced-injury-in-hpaepic-cell
#20
Junming Luo, Menglan Zhang, Hong Huang, Yichun Wang, Xin Yuan, Siqing Ma, Jingshi Liu, Shiying Zhou, Shukun Zhang
Radiation pulmonary injury is related to the accumulation of extracellular matrix proteins in the alveolar interstitial space. Matrilin-2 as a component of extracellular filamentous networks, present higher level in the lung tissue from irradiated mice and irradiated pulmonary epithelial cell line, HPAEpiC cells. Knockdown of endogenous matrilin-2 prevents the apoptosis of HPAEpiC cell induced by the irradiation injury. Consistently, over-expression of matrilin-2 reduced the proliferation and induced apoptosis of HPAEpiC cells...
December 3, 2016: Biochemical and Biophysical Research Communications
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