163 results match your criteria: "Brigham and Women's Hospital and Harvard Medical School Boston[Affiliation]"

Prognostic Value of D-Dimer in Acute Type A Aortic Dissection and Intramural Hematoma: Observations from the Acute Aortic Syndrome Group of the Registry of Acute Non-Traumatic Chest Pain in China.

J Am Heart Assoc

January 2025

Department of Cardiovascular Surgery, Beijing Anzhen Hospital, Capital Medical University, and The Key Laboratory of Cardiovascular Remodeling-related Diseases, Ministry of Education, and Beijing Institute of Heart Lung and Blood Vessel Disease Beijing China.

Background: Acute type A aortic dissection (AAD) and acute type A intramural hematoma (AIMH) are life-threatening conditions with high mortality rates, and prognostic indicators are critical for guiding urgent treatment decisions. We assessed the prognostic significance of admission D-dimer levels in patients with AAD and AIMH.

Methods And Results: The prospective, multicenter, observational study in China recruited participants from 2013 to 2019.

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Background: Epistaxis is common with antithrombotic therapy and is often troublesome to patients, yet its frequency, severity, and outcomes are poorly characterized.

Methods And Results: Effective Anticoagulation with Factor Xa Next Generation in Atrial Fibrillation-Thrombolysis in Myocardial Infarction 48 (ENGAGE AF-TIMI 48) randomized 21 105 patients with atrial fibrillation and CHADS2 risk score ≥2 to higher-dose edoxaban regimen (60 mg daily, dose-reduced to 30 mg), lower-dose edoxaban regimen (30 mg, dose reduced to 15 mg, daily), or warfarin. Bleeds were adjudicated using International Society on Thrombosis and Haemostasis criteria.

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Parkinson disease (PD) is the second most common neurodegenerative disease, characterized by both motor and cognitive features. Motor symptoms primarily involve midbrain dopaminergic neurons, while cognitive dysfunction involves cortical neurons. Environmental factors are important contributors to PD risk.

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  • The Vitamin D Antenatal Asthma Reduction Trial (VDAART) studied children from 6 months to 8 years and found links between specific gene variants and children's body mass index.
  • These associations also connected microbiome characteristics tied to obesity with important lipids and amino acids.
  • The findings suggest that genetic factors play a role in influencing the microbiome during development and highlight potential biomarkers for childhood obesity and related health issues like insulin resistance and type 2 diabetes.
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Endovascular interventions are procedures designed to diagnose and treat vascular diseases, using catheters to navigate inside arteries and veins. Thanks to their minimal invasiveness, they offer many benefits, such as reduced pain and hospital stays, but also present many challenges for clinicians, as they require specialized training and heavy use of X-rays. This is particularly relevant when accessing (i.

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Background: Sudden cardiac death (SCD) in early adults aged 25 to 44 years represents an important and unexpected cause of death. We assessed trends in SCD-related mortality in the United States from 1999 to 2020 among early adults to determine differences by sex, ethnoracial groups, urbanization, and census region.

Methods And Results: Mortality data were retrieved from the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research (CDC WONDER) data set from 1999 to 2020.

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Reproductive factors and expression of stem cell markers in women with incident benign breast disease.

Am J Cancer Res

November 2024

Department of Epidemiology, College of Public Health and Health Professions and College of Medicine, University of Florida Gainesville, FL, USA.

Reproductive factors are well-established risk factors for breast cancer. The prevailing hypothesis suggested that stem cell changes may be the key underlying mechanisms, but epidemiological evidence has been notably scarce. Herein we examined the relationship between reproductive risk factors and the expression of well-established stem cell markers CD44, CD24, and ALDH1A1 in benign breast biopsy non-cancerous samples.

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  • * Reducing NR4A2 levels through RNA interference (RNAi) leads to decreased cell growth, invasion, and movement, indicating its role in cancer progression.
  • * Targeting NR4A2 and its associated genes, like HuR, with specific inhibitors shows promise for new treatment strategies against PDAC by significantly inhibiting tumor growth in experimental models.
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  • Frailty is linked to increased cardiovascular disease (CVD) risk and mortality among US veterans, highlighting the importance of identifying frailty for better health outcomes.
  • In a study of nearly 190,688 veterans aged 50 and older, frailty was assessed using three different scoring systems, revealing a significant correlation between frailty and higher mortality rates from all causes and CVD.
  • The results suggest that regardless of the method used to measure frailty, it consistently indicates a greater risk for negative health events, indicating a need for more research specifically focusing on younger veterans under 60.
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Background: Evidence from cohort studies indicates a bidirectional relationship between periodontal disease and type 2 diabetes (T2D), but the underlying mechanisms remain unknown. In this study, we aimed to (1) identify saliva, plasma, and multifluid metabolomic signatures associated with periodontal disease and (2) determine if these signatures predict T2D progression and cardiometabolic biomarkers at year 3.

Methods And Results: We included participants from the SOALS (San Juan Overweight Adult Longitudinal Study) (n=911).

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Background: Iodine-meta-iodobenzylguanidine scintigraphy is useful for assessing cardiac autonomic dysfunction and predict outcomes in heart failure (HF). The relationship of cardiac sympathetic function with myocardial remodeling and diffuse fibrosis remains largely unknown. We aimed to evaluate the cardiac sympathetic function of patients with HF and its relation with myocardial remodeling and exercise capacity.

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Background: Current protocols generate highly pure human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) in vitro that recapitulate characteristics of mature in vivo cardiomyocytes. Yet, a risk of arrhythmias exists when hiPSC-CMs are injected into large animal models. Thus, understanding hiPSC-CM maturational mechanisms is crucial for clinical translation.

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  • Accurate quantification of sodium intake via self-reported surveys has been problematic, prompting researchers to use machine-learning (ML) algorithms to better predict urinary sodium excretion based on questionnaire data.
  • The study involved 3,454 participants from major health studies and found ML predictions of sodium excretion were more reliable than traditional food frequency questionnaires, showing stronger correlations and better calibration.
  • However, while ML improved predictions overall, it was still heavily influenced by body size and did not significantly reduce measurement errors related to disease outcomes.
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Background: Portopulmonary hypertension (PoPH), associated with increased mortality, can limit treatment options for liver diseases. Data on the continuum of clinical risk related to cardiopulmonary hemodynamics in PoPH are lacking.

Methods And Results: As part of the United States national Veterans Affairs Clinical Assessment, Reporting, and Tracking database, we performed a retrospective cohort study of adults with cirrhosis undergoing right heart catheterization between October 1, 2017, and September 30, 2022.

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  • Early diagnosis of psychosis is vital for effective treatment, but challenges arise due to underreporting, stigma, and the diverse symptoms presented by individuals.* -
  • The study utilized Natural Language Processing (NLP) to analyze psychiatric admission notes, comparing various algorithms, including rule-based and machine learning models, to improve detection accuracy.* -
  • The XGBoost classifier, enhanced by expert-curated keywords, achieved the best performance (F1 score of 0.8881), significantly outperforming traditional methods based on ICD codes (F1 score of 0.7608).*
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Introduction: In September 2022, The Jackson Laboratory Center for Alzheimer's and Dementia Research (JAX CADR) hosted a workshop with leading researchers in the Alzheimer's disease and related dementias (ADRD) field.

Methods: During the workshop, the participants brainstormed new directions to overcome current barriers to providing patients with effective ADRD therapeutics. The participants outlined specific areas of focus.

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  • Cardiogenic shock remains a critical health issue with high mortality rates, and no significant new treatments have emerged in decades, making management difficult.
  • A collaborative, multidisciplinary approach involving specialized "shock teams" is being promoted to improve patient outcomes in high-volume clinical settings.
  • The proposal aims to establish a Cardiogenic Shock Team Collaborative to enhance care protocols, education, and overall performance, similar to successful initiatives in other medical areas.
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Associations of stem cell markers in benign breast tissue with subsequent breast cancer risk.

Am J Cancer Res

December 2023

Department of Population Health Sciences, Weill Cornell Medicine New York, NY, USA.

We examined associations of stem cell markers CD44, CD24, and ALDH1A1 in benign breast biopsy samples with subsequent breast cancer (BCa) risk and explored if these associations were mediated by mammographic breast density (MBD). We included 101 BCa cases/375 controls, all with previous biopsy-confirmed benign breast disease (BBD) within the Nurses' Health Study (NHS) and NHSII. The data on BCa risk factors were obtained from biennial questionnaires.

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Background: One-time assessment of the Society for Cardiovascular Angiography and Interventions (SCAI) shock classification robustly predicts mortality in the cardiac intensive care unit (CICU). We sought to determine whether serial SCAI shock classification could improve risk stratification.

Methods And Results: Unique admissions to a single academic level 1 CICU from 2015 to 2018 were included in this retrospective cohort study.

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  • A study analyzed the use of direct oral anticoagulants (DOACs) in older adults (≥65 years) with nonvalvular atrial fibrillation living in nursing homes, finding that 48% received reduced doses.
  • The study showed that standard dosing was linked to a higher rate of major bleeding compared to reduced doses, particularly in those over 80 years old and with lower body mass indexes.
  • However, there was no significant difference in all-cause mortality or thrombotic events between standard and reduced dosing, suggesting that reduced-dose DOACs may be safer for many older adults with multiple health issues.
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