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  1. Article: Hit parade: the future of the sports concussion crisis.

    Nowinski, Chris

    Cerebrum : the Dana forum on brain science

    2013  Volume 2013, Page(s) 2

    Abstract: While concussions have long been linked to brain and central nervous system issues, a new study suggests that repeated hits to the head-mild or otherwise-can lead to memory loss, depression, and dementia. This postmortem brain study, conducted at the ... ...

    Abstract While concussions have long been linked to brain and central nervous system issues, a new study suggests that repeated hits to the head-mild or otherwise-can lead to memory loss, depression, and dementia. This postmortem brain study, conducted at the Boston University Center for the Study of Traumatic Encephalopathy, provides new and troubling evidence about chronic traumatic encephalopathy (CTE), a long-term degenerative and incurable brain disease. Although military personnel and others are vulnerable to the disease, the highest risk is among athletes involved in contact sports in which hits to the head are considered "part of the game."
    Language English
    Publishing date 2013-02-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2251230-5
    ISSN 1524-6205
    ISSN 1524-6205
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Relationship Between Level of American Football Playing and Diagnosis of Chronic Traumatic Encephalopathy in a Selection Bias Analysis.

    LeClair, Jessica / Weuve, Jennifer / Fox, Matthew P / Mez, Jesse / Alosco, Michael L / Nowinski, Chris / McKee, Ann / Tripodis, Yorghos

    American journal of epidemiology

    2022  Volume 191, Issue 8, Page(s) 1429–1443

    Abstract: Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease associated with exposure to repetitive head impacts such as those from American football. Our understanding of this association is based on research in autopsied brains, since CTE can ... ...

    Abstract Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease associated with exposure to repetitive head impacts such as those from American football. Our understanding of this association is based on research in autopsied brains, since CTE can only be diagnosed postmortem. Such studies are susceptible to selection bias, which needs to be accounted for to ensure a generalizable estimate of the association between repetitive head impacts and CTE. We evaluated the relationship between level of American football playing and CTE diagnosis after adjusting for selection bias. The sample included 290 deceased male former American football players who donated their brains to the Veterans Affairs-Boston University-Concussion Legacy Foundation (VA-BU-CLF) Brain Bank between 2008 and 2019. After adjustment for selection bias, college-level and professional football players had 2.38 (95% simulation interval (SI): 1.16, 5.94) and 2.47 (95% SI: 1.46, 4.79) times the risk of being diagnosed with CTE as high-school-level players, respectively; these estimates are larger than estimates with no selection bias adjustment. Since CTE is currently diagnosed only postmortem, we additionally provide plausible scenarios for CTE risk ratios for each level of play during the former players' lifetime. This study provides further evidence to support a dose-response relationship between American football playing and CTE.
    MeSH term(s) Brain ; Brain Concussion ; Chronic Traumatic Encephalopathy/diagnosis ; Football ; Humans ; Male ; Neurodegenerative Diseases
    Language English
    Publishing date 2022-04-14
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, N.I.H., Extramural
    ZDB-ID 2937-3
    ISSN 1476-6256 ; 0002-9262
    ISSN (online) 1476-6256
    ISSN 0002-9262
    DOI 10.1093/aje/kwac075
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: American Football Play and Parkinson Disease Among Men.

    Bruce, Hannah J / Tripodis, Yorghos / McClean, Michael / Korell, Monica / Tanner, Caroline M / Contreras, Brittany / Gottesman, Joshua / Kirsch, Leslie / Karim, Yasir / Martin, Brett / Palmisano, Joseph / Abdolmohammadi, Bobak / Shih, Ludy C / Stein, Thor D / Stern, Robert A / Adler, Charles H / Mez, Jesse / Nowinski, Chris / McKee, Ann C /
    Alosco, Michael L

    JAMA network open

    2023  Volume 6, Issue 8, Page(s) e2328644

    Abstract: Importance: Parkinsonism and Parkinson disease (PD) are known to result from repetitive head impacts from boxing. Repetitive head impacts from American football may also be associated with increased risk of neurodegenerative pathologies that cause ... ...

    Abstract Importance: Parkinsonism and Parkinson disease (PD) are known to result from repetitive head impacts from boxing. Repetitive head impacts from American football may also be associated with increased risk of neurodegenerative pathologies that cause parkinsonism, yet in vivo research on the association between football play and PD is scarce and limited by small samples and equivocal findings.
    Objective: To evaluate the association between football participation and self-reported parkinsonism or PD diagnosis.
    Design, setting, and participants: This cross-sectional study leveraged data from the online Fox Insight study. Participants completed online questionnaires and self-reported whether they currently had a diagnosis of Parkinson disease or parkinsonism by a physician or other health care professional. In November 2020, the Boston University Head Impact Exposure Assessment was launched for data collection on repetitive head impacts. Data used for this manuscript were obtained from the Fox Insight database on June 9, 2022. A total of 1875 men who endorsed playing any organized sport were included. Former athletes were divided into those who participated in football (n = 729 [38.9%]) and those who participated in other sports (reference group).
    Exposures: Self-reported participation in football, duration and level of football play, age at first exposure.
    Main outcomes and measures: Logistic regression tested associations between PD status and history of football play, duration of football play, highest level played, and age at first exposure, controlling for age, education, history of diabetes or heart disease, body mass index, history of traumatic brain injury with loss of consciousness, and family history of PD.
    Results: In this sample of 1875 men (mean [SD] age, 67.69 [9.84] years) enriched for parkinsonism or PD (n = 1602 [85.4%]), 729 (38.9%) played football (mean [SD] duration, 4.35 [2.91] years). History of playing football was associated with higher odds of having a parkinsonism or PD diagnosis (odds ratio [OR], 1.61; 95% CI, 1.19-2.17). Among the entire sample, longer duration of play was associated with higher odds of having a parkinsonism or PD diagnosis (OR, 1.12; 95% CI, 1.06-1.19). Among football players, longer duration of football play (OR, 1.12; 95% CI, 1.02-1.23) and higher level of play (OR, 2.93; 95% CI, 1.28-6.73) were associated with higher odds of having parkinsonism or PD.
    Conclusions and relevance: In this cross-sectional study of participants enriched for PD, participation in football was associated with higher odds of having a reported parkinsonism or PD diagnosis.
    MeSH term(s) Male ; Humans ; Aged ; Football/injuries ; Parkinson Disease/epidemiology ; Parkinson Disease/etiology ; Cross-Sectional Studies ; Universities
    Language English
    Publishing date 2023-08-01
    Publishing country United States
    Document type Journal Article
    ISSN 2574-3805
    ISSN (online) 2574-3805
    DOI 10.1001/jamanetworkopen.2023.28644
    Database MEDical Literature Analysis and Retrieval System OnLINE

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