Head On!

Mock, Harry E.; Mock, Charles J.

doi:10.1111/j.1746-1561.1948.tb00050.x

Cited by 3 publications

(2 citation statements)

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“…Small-molecular-weight antioxidants, such as ascorbic acid and glutathione, are directly involved in ROS elimination in non-enzymatic protection mechanisms. Additionally, glutaredoxin (Grx) catalyzes the reduction of peroxides, such as hydrogen peroxide, and is the main enzyme that prevents plant cells from being damaged by oxygen [42][43][44]. In this study, several genes that participate in ascorbate oxidase and Grx metabolism were identified through KEGG pathway analysis.…”

Section: Degs Related To Rosmentioning

confidence: 99%

Reactive Oxygen Species Accumulation Strongly Allied with Genetic Male Sterility Convertible to Cytoplasmic Male Sterility in Kenaf

Yiding

Zhou

Khan

et al. 2021

IJMS

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Male sterility (MS) plays a key role in the hybrid breed production of plants. Researchers have focused on the association between genetic male sterility (GMS) and cytoplasmic male sterility (CMS) in kenaf. In this study, P9BS (a natural GMS mutant of the kenaf line P9B) and male plants of P9B were used as parents in multiple backcross generations to produce P9SA, a CMS line with stable sterility, to explore the molecular mechanisms of the association between GMS and CMS. The anthers of the maintainer (P9B), GMS (P9BS), and CMS (P9SA) lines were compared through phenotypic, cell morphological, physiological, biochemical observations, and transcriptome analysis. Premature degradation of the tapetum was observed at the mononuclear stage in P9BS and P9SA, which also had lower activity of reactive oxygen species (ROS) scavenging enzymes compared with P9B. Many coexpressed differentially expressed genes were related to ROS balance, including ATP synthase, electron chain transfer, and ROS scavenging processes were upregulated in P9B. CMS plants had a higher ROS accumulation than GMS plants. The MDA content in P9SA was 3.2 times that of P9BS, and therefore, a higher degree of abortion occurred in P9SA, which may indicate that the conversion between CMS and GMS is related to intracellular ROS accumulation. Our study adds new insights into the natural transformation of GMS and CMS in plants in general and kenaf in particular.

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Section: Degs Related To Rosmentioning

confidence: 99%

Reactive Oxygen Species Accumulation Strongly Allied with Genetic Male Sterility Convertible to Cytoplasmic Male Sterility in Kenaf

Yiding

Zhou

Khan

et al. 2021

IJMS

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“…When considering the effect of protective equipment on the prevention of head injuries in sport, most research evaluating helmet fit involves those participating in bicycling, [9][10][11][12] skiing and snowboarding, 13,14 and American football. [15][16][17][18][19][20][21] Proper helmet fit for athletes has been discussed for years with inconsistent claims regarding the preventative benefits between comfortable and tight-fitting helmets, 15 and helmets that moved naturally on the head to attenuate forces and accelerations. 16 Since then, it has been reported twice that cyclists wearing a poorly-fitted helmet were at a greater risk of head injury.…”

mentioning

confidence: 99%

Helmet Fit Assessment and Concussion Risk in Youth Ice Hockey Players: A Nested Case-Control Study

Gamble

Bigg

Sick

et al. 2020

Journal of Athletic Training

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Context: Injury surveillance has shown that concussions are the most common injury in youth ice hockey. Research examining criteria to ensure correct fit of protective equipment and its potential relationship with concussion risk is very limited. Objective: To evaluate the association between helmet fit and odds of concussion in youth ice hockey players. Design: Nested case-control in a cohort study. 10 Setting: COUNTRY-XXX. Participants: Data were collected for 72 concussed, 41 non-concussion injured, and 62 uninjured ice hockey players ages 11–18 years. Main Outcome Measures: Helmet fit assessments were conducted across players encompassing helmet specifications, condition, certification, and criteria measuring helmet fit. Using a validated injury surveillance system, cases included players with suspected and/or physician-diagnosed concussion. One control group included players who sustained non-concussion injuries and a second control group included uninjured players. Helmet fit criteria (score/16) were assessed for concussed players and compared with each of two control groups. The primary outcome was dichotomous (>1 helmet fit criteria missing vs. 0 or 1 criteria missing). Logistic and conditional logistic regression were used to investigate the effect of helmet fit on odds of concussion. Results: The primary analysis (54 pairs matched for age, sex, and level of play) suggested that inadequate helmet fit (>1 criterion missing) resulted in greater odds of concussion when comparing concussed and uninjured players [OR: 2.67 (95% CI 1.04–6.81), p=0.040]. However, a secondary unmatched analysis including all participants suggested no significant association between helmet fit and odds of concussion when comparing concussed players with non-concussion injured players [OR: 0.98 (95% CI 0.43–2.24), p=0.961] or uninjured players [OR: 1.66 (95% CI 0.90–3.05), p=0.103]. Conclusion: Inadequate helmet fit may affect the odds of sustaining a concussion in youth ice hockey. Future research with larger sample sizes should continue to evaluate this relationship and inform helmet fit recommendations.

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A Study of Existing State High School and other Selected Athletic Benefit Plans

Marks

1949

Research Quarterly. American Association for Health, Physical E

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Head On!

Cited by 3 publications

References 0 publications

Reactive Oxygen Species Accumulation Strongly Allied with Genetic Male Sterility Convertible to Cytoplasmic Male Sterility in Kenaf

Reactive Oxygen Species Accumulation Strongly Allied with Genetic Male Sterility Convertible to Cytoplasmic Male Sterility in Kenaf

Helmet Fit Assessment and Concussion Risk in Youth Ice Hockey Players: A Nested Case-Control Study

A Study of Existing State High School and other Selected Athletic Benefit Plans

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