scholarly journals Detecting a History of Repetitive Head Impacts from a Short Voice Recording

2021 ◽  
Author(s):  
Michael G. Tauro ◽  
Mirco Ravanelli ◽  
Cristian A. Droppelmann
Keyword(s):  
Chronic Traumatic Encephalopathy ◽  
Control Group ◽  
Head Impacts ◽  
Repetitive Head Impacts ◽  
Potential Biomarker ◽  
Increased Risk ◽  
Clinical Diagnoses ◽  
History Of ◽  
Brain Changes ◽  
Fine Tune

Repetitive head impacts (RHI) are associated with an increased risk of developing various neurodegenerative disorders, such as Alzheimer's disease (AD), Parkinson's disease (PD), and most notably, chronic traumatic encephalopathy (CTE). While the clinical presentation of AD and PD is well established, CTE can only be diagnosed post-mortem. Therefore, a distinction can be made between the pathologically defined CTE and RHI-related functional or structural brain changes (RHI-BC) which may result in CTE. Unfortunately, there are currently no accepted biomarkers of CTE nor RHI-BC, a major hurdle to achieving clinical diagnoses. Interestingly, speech has shown promise as a potential biomarker of both AD and PD, being used to accurately classify individuals with AD and PD from those without. Given the overlapping symptoms between CTE, RHI-BC, PD and AD, we aimed to determine if speech could be used to identify individuals with a history of RHI from those without. We therefore created the Verus dataset, consisting of 13 second voice recordings from 605 professional fighters (RHI group) and 605 professional athletes in non-contact sports (control group) for a total of 1210 recordings. Using a deep learning approach, we achieved 85% accuracy in detecting individuals with a history of RHI from those without. We then used our model trained on the Verus dataset to fine-tune on publicly available AD and PD speech datasets and achieved new state-of-the-art accuracies of 84.99% on the AD dataset and 89% on the PD dataset. Finding a biomarker of CTE and RHI-BC that presents early in disease progression is critical to improve risk management and patient outcome. Our study is the first we are aware of to investigate speech as such a candidate biomarker of RHI-BC.

History of Chronic Traumatic Encephalopathy

2020 ◽  
Vol 40 (04) ◽  
pp. 353-358
Author(s):  
Robert C. Cantu ◽  
Charles Bernick
Keyword(s):  
Chronic Traumatic Encephalopathy ◽  
Neurological Impairment ◽  
American Football ◽  
Football Players ◽  
Long Term Effects ◽  
Public Attention ◽  
Head Impacts ◽  
Repetitive Head Impacts ◽  
History Of ◽  
Initial Description

AbstractThe long-term effects of repetitive head impacts have been recognized for close to a century. What is now referred to as chronic traumatic encephalopathy (CTE) was first described by Martland in 1928 in a series of boxers. Over the years, several important articles were published, including Critchley's 1957 report where he introduced the term “chronic traumatic encephalopathy,” Robert's study in 1969 which provided evidence of the prevalence of neurological impairment in retired fighters, and Corsellis' initial description of the pathology of CTE. However, what brought public attention to the issue of CTE in sports were the postmortem findings of CTE pathology in professional American football players, initially reported by Omalu and subsequently in a large series by McKee. There is now standardization of pathological criteria for CTE and recognition that it can be seen across all activities that involve repetitive head impacts.

scholarly journals Circulating Natural IgM Antibodies against Angiogenin in the Peripheral Blood Sera of Patients with Osteosarcoma as Candidate Biomarkers and Reporters of Tumorigenesis

2010 ◽  
Vol 2 ◽  
pp. BIC.S6040 ◽  
Author(s):  
Yulia A. Savitskaya ◽  
Genaro Rico ◽  
Luis Linares ◽  
Roberto González ◽  
René Téllez ◽  
...  
Keyword(s):  
Early Diagnosis ◽  
Sensitivity And Specificity ◽  
Peripheral Blood ◽  
Enzyme Linked Immunosorbent Assay ◽  
Control Group ◽  
Healthy Individuals ◽  
Igm Antibodies ◽  
Potential Biomarker ◽  
Increased Risk ◽  
Natural Igm

Background Tumor immunology research has led to the identification of a number of tumor-associated self antigens, suggesting that most tumors trigger an immunogenic response, as is the case in osteosarcoma, where the detection of natural serum IgM antibodies might achieve the diagnosis of osteosarcoma. Natural IgM antibodies to tumor-associated proteins may expand the number of available tumor biomarkers for osteosarcoma and may be used together in a serum profile to enhance test sensitivity and specificity. Natural IgM antibodies can be consistently detected in the peripheral blood sera months to years before the tumor is diagnosed clinically. The study of the level of a potential biomarker many months (or years) prior to diagnosis is fundamentally important. Integrated circulating and imaging markers in clinical practice treating osteosarcoma have potential applications for controlling tumor angiogenesis. Objectives To study the expression of natural IgM antibodies to the tumor antigens of angiogenesis in the peripheral blood sera of osteosarcoma patients and healthy individuals, and to develop serum-based predictive biomarkers. Methods Peripheral venous blood samples were collected from 117 osteosarcoma patients and 117 patients with other tumors. All diagnosis was histologically confirmed. Staging of patients was performed according to the Enneking Surgical Staging System. The control group consisted of 117 age- and sex- matched healthy individuals. In this study, novel immunoconjugates were designed, synthesized and then used to develop a rapid, specific and sensitive enzyme-linked immunosorbent assay (ELISA) method to detect angiogenin (ANG)–IgM directly in the peripheral blood sera of humans. Results Serum ANG–IgM levels are significantly higher in osteosarcoma patients than in healthy individuals ( P < 0.005). Serum ANG–IgM levels varied widely, but were highly dependent on the concentration of IgM (r = 0.85; P < 0.0005). We found ANG–IgM in the sera of 85% of newly diagnosed osteosarcoma patients and ANG–IgM levels were significantly higher in osteosarcoma patients compared to any other tumors ( P < 0.001). Conclusions These results demonstrated that the combined biomarker ANG–IgM has greater sensitivity and specificity in early diagnosis of osteosarcoma patients than the traditional biomarkers (ANG and vascular endothelial growth factor). Circulating ANG–IgM immune complexes can potentially serve as a biomarker for increased risk of osteosarcoma, because relatively high serum levels were also detected in otherwise healthy individuals with a first degree family history of osteosarcoma and in patients with a diagnosis of benign conditions. Immunological aspects of angiogenesis for managing osteosarcoma will have a practical value in early diagnosis, prognosis and monitoring response to antiangiogenic therapy.

scholarly journals Insulin Resistance and Inflammation in Black Women with and without Breast Cancer: Cause for Concern

2016 ◽  
Vol 26 (4) ◽  
pp. 513 ◽  
Author(s):  
Kathleen A. Griffith ◽  
Seon Yoon Chung ◽  
Shijun Zhu ◽  
Alice S. Ryan
Keyword(s):  
Breast Cancer ◽  
Insulin Resistance ◽  
Black Women ◽  
White Women ◽  
Cancer Recurrence ◽  
Control Group ◽  
Study Objective ◽  
Increased Risk ◽  
Tnf Α ◽  
History Of

<p class="Pa7"><strong>Objective: </strong>After chemotherapy for breast cancer, Black women gain more weight and have an increased mortality rate compared with White women. Our study objective was to compare biomarkers associated with obesity in Black women with and without a history of breast cancer.</p><p class="Pa7"><strong>Design: </strong>Case-control</p><p class="Pa7"><strong>Setting: </strong>Academic/federal institution</p><p class="Pa7"><strong>Participants: </strong>Black women with a history of breast cancer (cases) and age-matched controls.</p><p class="Pa7"><strong>Methods: </strong>We compared insulin resistance, inflammation, and lipids in overweight and obese Black women with a history of breast cancer (n=19), age similar controls (n=25), and older controls (n=32). Groups did not differ on mean body mass index (BMI), which was 35.4 kg/m2, 36.0 kg/m2, and 33.0 kg/m2, respectively.</p><p class="Default"><strong>Main Outcome Measures: </strong>Insulin resis­tance (HOMA-IR); inflammation (TNF-α, IL-1b, IL-6, IL-8, CRP); lipids (cholesterol, triglycerides).</p><p class="Pa7"><strong>Results: </strong>Cases had 1.6 and 1.38 times higher HOMA-IR values compared with age similar and older controls, respectively (P≤.001 for both). TNF-α and IL-1b were significantly higher in cases compared with both control groups (P&lt;.001 for both). IL-6 was also higher in cases compared with age-similar controls (P=.007), and IL-8 was lower in cases compared with older controls (P&lt;.05). Lipids did not differ between cases and either control group.</p><p class="Default"><strong>Conclusions: </strong>Black women with breast cancer were significantly more insulin resis­tant with increased inflammation compared not only with age similar controls but with women who were, on average, a decade older. These biomarkers of insulin resistance and inflammation may be associated with increased risk of breast cancer recurrence and require ongoing evaluation, especially given the relatively abnormal findings com­pared with the controls in this underserved group. <em></em></p><p class="Default"><em>Ethn Dis. </em>2016;26(4):513-520; doi:10.18865/ed.26.4.513</p>

scholarly journals Correction: Altered Blood Biomarker Profiles in Athletes with a History of Repetitive Head Impacts

PLoS ONE ◽  
2016 ◽  
Vol 11 (10) ◽  
pp. e0164912 ◽  
Author(s):  
Alex P. Di Battista ◽  
Shawn G. Rhind ◽  
Doug Richards ◽  
Nathan Churchill ◽  
Andrew J. Baker ◽  
...  
Keyword(s):  
Head Impacts ◽  
Repetitive Head Impacts ◽  
Blood Biomarker ◽  
History Of ◽  
Altered Blood

Abstract 18516: Regional Dysfunction of Left Atrial Appendage and its Association with Stroke in Atrial Fibrillation

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Abdullah A Alissa ◽  
Yuko Inoue ◽  
Jochen Cammin ◽  
Qiulin Tang ◽  
Elliot Fishman ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Atrial Appendage ◽  
Control Group ◽  
Prior History ◽  
Area Change ◽  
Increased Risk ◽  
History Of ◽  
Regional Dysfunction

Background: Atrial Fibrillation (AF) is associated with an increased risk of cardioembolic stroke. Previous studies demonstrate that the Left atrial appendage (LAA) is the most common site of intracardiac thrombus, and the LAA morphology alone may determine the risk of stroke. We aimed to determine the association between LAA regional dysfunction using novel, noninvasive, image-based motion-estimation CT (iME) and prior history of stroke in patients with AF. Methods: Among the patients with history of AF referred for ablation who underwent pre-ablation CT with retrospective ECG gating, we identified 18 patients with a prior history of stroke or TIA, and 18 age- and gender-matched controls. The patients in AF at the time of CT were excluded. Four-dimensional motion vector field was estimated from reconstructed CT images using iME at every 5% RR interval. To assess myocardial deformation, area change ratio and area change rate were calculated over the endocardial surface of the LA and LAA. Univariate and multivariate comparisons were made by using binary logistic regression model. Results: A total of 36 patients (mean age 67.6 ± 8.1 years, 66.7% male, 16.7% persistent AF) were included in the study. Univariate analysis showed that the LA pre-atrial contraction area change ratio and LAA maximum area change ratio were significantly lower (P= 0.02 and 0.04, respectively) in the stroke/TIA group compared to the control group. These changes remained statistically significant in multivariate analysis (P=0.03 and 0.04, respectively) after adjusting for age, sex, body mass index, LV ejection fraction, type of AF, and CHADS score. Conclusions: LAA regional dysfunction is associated with stroke/TIA in patients with AF. LAA regional dysfunction detected by iME could represent a marker for stroke and a possible therapeutic target.

The Relationship of Drug Abuse to Unexplained Sudden Death

2008 ◽  
Vol 132 (12) ◽  
pp. 1903-1906
Author(s):  
Amy C. Gruszecki ◽  
Gerald McGwin, Jr ◽  
C. Andrew Robinson, Jr ◽  
Gregory G. Davis
Keyword(s):  
Drug Abuse ◽  
Cause Of Death ◽  
Control Group ◽  
Manner Of Death ◽  
Increased Risk ◽  
History Of ◽  
Matched Case ◽  
Relationship Of ◽  
The Relationship ◽  
Control Study

Abstract Context.—Forensic pathologists regularly investigate the deaths of individuals with a history of drug abuse. Autopsy, including toxicology testing, reveals no cause for death in a subset of this cohort. Objective.—To determine whether deaths with an undetermined cause and manner of death are associated with a history of drug abuse. Design.—Retrospective matched case-control study of 52 decedents whose cause of death remained undetermined following autopsy, matched 1:2 to a control group of living patients admitted for cholecystectomy according to age and date of death or procedure. Results.—Individuals whose cause of death was undetermined were 5.3 times (95% confidence interval, 1.9– 14.5) more likely to have a history of drug abuse than were patients with cholecystitis. Conclusions.—Decedents with a history of chronic drug abuse appear to be at an increased risk of dying by their chronic drug abuse, even in the absence of any anatomical or toxicologic finding at autopsy to account for death.

Abstract 284: microRNAs are Novel Plasma Biomarkers for Diagnosis and Prognosis of Abdominal Aortic Aneurysm Disease

2013 ◽  
Vol 33 (suppl_1) ◽  
Author(s):  
Ekaterina Chernogubova ◽  
Suzanne M Eken ◽  
Hong Jin ◽  
Joy Roy ◽  
Anders Hamsten ◽  
...  
Keyword(s):  
Prognostic Value ◽  
Aortic Aneurysms ◽  
Control Group ◽  
Aortic Tissue ◽  
Plasma Samples ◽  
Diagnosis And Prognosis ◽  
Abdominal Aortic ◽  
Increased Risk ◽  
Fine Tune ◽  
Pump Implantation

MicroRNAs (miRNAs) have been identified as transcriptional and posttranscriptional inhibitors of gene expression, thought to “fine tune” the translational output of their target mRNAs. Recently, they have received much attention regarding their suitability as biomarkers for disease. Our goal was to explore the diagnostic and prognostic value of miRNAs in abdominal aortic aneurysms (AAAs), a disease for which currently no established biomarker exists. Using a PCR-based array platform, we profiled the 168 most abundant blood miRNAs in 20 patient plasma samples with AAA disease, undergoing surgical repair of their enlarged aorta vs. 20 samples from an age, risk factor, and medication matched control group without aneurysm. We were able to identify a total number of 12 miRNAs being significantly altered in diseased patient samples as compared to controls. We further investigated these 12 miRNAs in plasma (as well as in aortic tissue) from apoE-/- mice with angiotensinII (AngII)-infusion induced AAAs, enabling us to discover a potential prognostic value of miRNAs being released into circulation. Indeed we were able to detect that the expression of 4 out of the 12 miRNAs (miRs-126 and -668 both increased; miRs-24 and -210 both decreased), was substantially modified in plasma samples drawn from mice with AAA immediately before rupture occurred between days 10 and 14 after AngII pump implantation compared to mice with AAA that did not rupture for the remainder of study (28 days), as well as saline-infused controls. Importantly, the expression of miRs-24 and -126 appeared also significantly different in plasma samples from patients with ruptured AAAs (n=7) compared to patients with non-ruptured AAAs (abdominal aortic diameter between 55-78 mm; n=7) and un-diseased controls (n=7). The present study explores the diagnostic and prognostic biomarker potential of miRNAs being released into circulation during initiation, propagation, and ultimately rupture of AAA disease in mice and humans. The identification of miRs-24, -126, -210, and -663 potentially offers great prognostic value to determine which patients present with an increased risk of AAA rupture.

scholarly journals Risk factors for pre-eclampsia among women at antenatal booking in Kano, Northern Nigeria

2013 ◽  
Vol 1 (1) ◽  
pp. 12 ◽  
Author(s):  
Ibrahim A. Yakasai ◽  
Imran O. Morhason-Bello
Keyword(s):  
Risk Factors ◽  
Early Onset ◽  
Multiple Logistic Regression Analysis ◽  
Control Group ◽  
Northern Nigeria ◽  
Degree Relative ◽  
Factors Associated ◽  
Increased Risk ◽  
History Of ◽  
At Home

Pre-eclampsia (PE) is an important cause of maternal mortality. There have been several studies on risk factors assessment with conflicting reports across the globe on this disease; however, rigorous recent evaluation of these factors is uncommon in this region. The aim of the present study was to determine the risks factors in the early-onset PE in Aminu Kano Teaching Hospital (AKTH), Kano (Northern Nigeria). We conducted a case-control study in Nigeria between April 2009 and January 2010 to identify the risk factors associated with the early-onset PE in women attending antenatal clinic in AKTH. Information on socio-cultural characteristics, medical history, previous obstetrics history, level of stress at home, and type of family were obtained and recorded in a proforma designed for the study. Multiple logistic regression analysis was used to determine the risk factors for PE at 95% confidence level. Pregnant women with early-onset PE (150 in each case and control group). Risk factors associated with increased risk of early-onset PE were: history of pre-eclampsia/eclampsia (PE/E) in a previous pregnancy [adjusted odds ratio (AOR) 2.09]; exposure to passive smoking (AOR 1.34); inadequate antenatal supervision (AOR 15.21); family history of hypertension in one or more 1st-degree relative (AOR 8.92); living in a joint family (AOR 6.93); overweight (120% to 150% of pre-pregnancy ideal body weight, AOR 4.65). Risk factors among women in Northern Nigeria are similar to those reported from other studies. Good antenatal cares, early detection, reduction of stressful conditions at home are the most important preventive measures of early-onset severe PE among these women.

Risk Factors for Chronic Traumatic Encephalopathy: A Proposed Framework

2020 ◽  
Vol 40 (04) ◽  
pp. 439-449
Author(s):  
Alyssa Phelps ◽  
Jesse Mez ◽  
Robert A. Stern ◽  
Michael L. Alosco
Keyword(s):  
Risk Factors ◽  
Chronic Traumatic Encephalopathy ◽  
Military Veterans ◽  
Cumulative Exposure ◽  
Risk Characterization ◽  
Future Directions ◽  
Head Impacts ◽  
Environmental Trigger ◽  
History Of ◽  
Pathological Development

AbstractChronic traumatic encephalopathy (CTE) is a progressive neurodegenerative disease that has been neuropathologically diagnosed in contact and collision sport athletes, military veterans, and others with a history of exposure to repetitive head impacts (RHI). Identifying methods to diagnose and prevent CTE during life is a high priority. Timely diagnosis and implementation of treatment and preventative strategies for neurodegenerative diseases, including CTE, partially hinge upon early and accurate risk characterization. Here, we propose a framework of risk factors that influence the neuropathological development of CTE. We provide an up-to-date review of the literature examining cumulative exposure to RHI as the environmental trigger for CTE. Because not all individuals exposed to RHI develop CTE, the direct and/or indirect influence of nonhead trauma exposure characteristics (e.g., age, sex, race, genetics) on the pathological development of CTE is reviewed. We conclude with recommendations for future directions, as well as opinions for preventative strategies that could mitigate risk.

scholarly journals Late contributions of repetitive head impacts and TBI to depression symptoms and cognition

Neurology ◽  
2020 ◽  
Vol 95 (7) ◽  
pp. e793-e804 ◽  
Author(s):  
Michael L. Alosco ◽  
Yorghos Tripodis ◽  
Zachary H. Baucom ◽  
Jesse Mez ◽  
Thor D. Stein ◽  
...  
Keyword(s):  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Later Life ◽  
Depression Symptoms ◽  
Neurocognitive Performance ◽  
Contact Sport ◽  
Cross Sectional ◽  
Head Impacts ◽  
Repetitive Head Impacts ◽  
History Of

ObjectiveTo test the hypothesis that repetitive head impacts (RHIs), like those from contact sport play and traumatic brain injury (TBI) have long-term neuropsychiatric and cognitive consequences, we compared middle-age and older adult participants who reported a history of RHI and/or TBI with those without this history on measures of depression and cognition.MethodsThis cross-sectional study included 13,323 individuals (mean age, 61.95; 72.5% female) from the Brain Health Registry who completed online assessments, including the Ohio State University TBI Identification Method, the Geriatric Depression Scale (GDS-15), and the CogState Brief Battery and Lumos Labs NeuroCognitive Performance Tests. Inverse propensity-weighted linear regressions accounting for age, sex, race/ethnicity, and education tested the effects of RHI and TBI compared to a non-RHI/TBI group.ResultsA total of 725 participants reported RHI exposure (mostly contact sport play and abuse) and 7,277 reported TBI (n = 2,604 with loss of consciousness [LOC]). RHI (β, 1.24; 95% CI, 0.36–2.12), TBI without LOC (β, 0.43; 95% CI, 0.31–0.54), and TBI with LOC (β, 0.75; 95% CI, 0.59–0.91) corresponded to higher GDS-15 scores. While TBI with LOC had the most neuropsychological associations, TBI without LOC had a negative effect on CogState Identification (β, 0.004; 95% CI, 0.001–0.01) and CogState One Back Test (β, 0.004; 95% CI, 0.0002–0.01). RHI predicted worse CogState One Back Test scores (β, 0.02; 95% CI, −0.01 to 0.05). There were RHI × TBI interaction effects on several neuropsychological subtests, and participants who had a history of both RHI and TBI with LOC had the greatest depression symptoms and worse cognition.ConclusionsRHI and TBI independently contributed to worse mid- to later-life neuropsychiatric and cognitive functioning.

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