124,916 results match your criteria: "Massachusetts General Hospital[Affiliation]"

Transcriptional profile of the rat cardiovascular system at single-cell resolution.

Cell Rep

December 2024

Precision Cardiology Laboratory, The Broad Institute, Cambridge, MA 02142, USA; Cardiovascular Research Center, Massachusetts General Hospital, Boston, MA 02114, USA; Cardiology Division, Massachusetts General Hospital, Boston, MA 02114, USA. Electronic address:

We sought to characterize cellular composition across the cardiovascular system of the healthy Wistar rat, an important model in preclinical cardiovascular research. We performed single-nucleus RNA sequencing (snRNA-seq) in 78 samples in 10 distinct regions, including the four chambers of the heart, ventricular septum, sinoatrial node, atrioventricular node, aorta, pulmonary artery, and pulmonary veins, which produced 505,835 nuclei. We identified 26 distinct cell types and additional subtypes, with different cellular composition across cardiac regions and tissue-specific transcription for each cell type.

View Article and Find Full Text PDF

Adverse birth outcome research case definitions associated with maternal HIV and antiretroviral drug use in pregnancy: a scoping review.

BMC Pregnancy Childbirth

December 2024

Department of Paediatrics & Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.

Background: Adverse birth outcomes (preterm birth, low birth weight, small for gestational age, and stillbirth) seem to persist in infants born to people with HIV, even in the context of maternal antiretroviral therapy. However, findings have been disparate, inconclusive, and difficult to compare directly across settings, partly owing to variable outcome definitions. We aimed to collate, compare, and map existing adverse birth outcome definitions to inform a harmonized approach to universally measure these outcomes in studies including pregnant people with HIV.

View Article and Find Full Text PDF

Objectives: To evaluate if the tackler correctly adhering, or not, to four different instructions of legal front-on one-on-one torso tackles altered the tackler and/or ball carrier peak inertial head kinematics.

Design: Controlled laboratory study.

Methods: Fifteen rugby-code players measured with three-dimensional optoelectronic motion capture performed two tackle instructions from the Australian National Rugby League coaching manual on under (Dominant National Rugby League) and over (Smother National Rugby League) the ball tackles, and two novel variants of these (under, Dominant, Torso Stick; over, Smother, Pop, Lock).

View Article and Find Full Text PDF

Abscopal response in a patient with fibrolamellar hepatocellular carcinoma following radiotherapy.

Lancet

December 2025

Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston Children's Cancer and Blood Disorders Center, and Harvard Medical School, Boston, MA, USA.

View Article and Find Full Text PDF

Background: A large body of evidence links stressful life events with depression. However, little is understood about the role of perceived impact in this association.

Methods: We performed regression analysis to investigate whether self-reported stress reactivity (derived by regressing the impact-weighted life event score on the unweighted score) moderated the association between stressful life events and depressive symptoms in adolescents from the Avon Longitudinal Study of Parents and Children cohort (n = 4791), controlling for age at outcome, sex, ethnicity, and maternal education.

View Article and Find Full Text PDF

Prognostic models for progression-free survival in atypical meningioma: Comparison of machine learning-based approach and the COX model in an Asian multicenter study.

Radiother Oncol

December 2024

Department of Radiation Oncology, Yonsei Cancer Center, Heavy Ion Therapy Research Institute, Yonsei University College of Medicine, Seoul, South Korea; Brain Research Institute, Yonsei University College of Medicine, Seoul, Korea. Electronic address:

Background And Purpose: Atypical meningiomas are prevalent intracranial tumors with varied prognoses and recurrence rates. The role of adjuvant radiotherapy (ART) in atypical meningiomas remains debated. This study aimed to develop and validate a prognostic model incorporating machine learning techniques and clinical factors to predict progression-free survival (PFS) in patients with atypical meningiomas and assess the impact of ART.

View Article and Find Full Text PDF

Therapeutic plasma exchange (PLEX) is an adjunctive treatment for patients with anti-neutrophil cytoplasmic antibody (ANCA)-associated vasculitis and kidney involvement. Little is known about the effect of PLEX on early changes in kidney function. This post-hoc analysis of the PEXIVAS trial investigated the effects of PLEX on changes in kidney function within 12 months.

View Article and Find Full Text PDF

Shifting Perspective to Support Family Planning for All.

Ann Thorac Surg

December 2024

Division of Cardiothoracic Surgery, Department of Surgery, University of Southern California, Los Angeles, CA; Heart Institute, Children's Hospital of Los Angeles, Los Angeles, CA.

View Article and Find Full Text PDF

Background: Initiating urate-lowering therapy can trigger gout flares. Gout flares have been associated with a temporally increased risk of cardiovascular events. Therefore, we aimed to estimate the risk of cardiovascular events in patients with gout initiating urate-lowering therapy with flare prophylaxis using colchicine (the drug recommended for gout flare prohphylaxis by many international societies) compared with no prophylaxis.

View Article and Find Full Text PDF

We aimed at investigating the presence of patterns that account for the phenotypic variability in a myotonic dystrophy type 2 (DM2) retrospective cohort at the Mass General Brigham Neuromuscular Centers. We collected the presence or absence of 23 clinical variables at symptom onset and diagnosis (n = 67 patients) and follow-up (n = 37 patients). We first identified set/s of variables (factors or cluster/s) representative of the large research data pool at onset by performing factor analyses, then assigned each patient to the cluster for which they had the highest computed total factor score.

View Article and Find Full Text PDF

Hypothalamic volume is associated with age, sex and cognitive function across lifespan: a comparative analysis of two large population-based cohort studies.

EBioMedicine

December 2024

Population Health Sciences, German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany; Department of Neurology, Faculty of Medicine, University of Bonn, Germany. Electronic address:

Background: Emerging findings indicate that the hypothalamus, the body's principal homeostatic centre, plays a crucial role in modulating cognition, but comprehensive population-based studies are lacking.

Methods: We used cross-sectional data from the Rhineland Study (N = 5812, 55.2 ± 13.

View Article and Find Full Text PDF

With no standard method to capture penicillin allergy de-labeling prevalence across populations, we developed and validated a simple penicillin allergy de-labeling prevalence measure from electronic health records that achieved perfect sensitivity (100.0%), high specificity (99.4%), and strong agreement with a comprehensive algorithm that included free-text manual review (Kappa=0.

View Article and Find Full Text PDF

Efficient Photolysis of Multidrug-Resistant Polymicrobial Biofilms.

Adv Sci (Weinh)

December 2024

Wellman Center for Photomedicine, Massachusetts General Hospital, Department of Dermatology, Harvard Medical School, 50 Blossom Street, Boston, MA, 02114, USA.

Chronic wounds are prone to infections with multidrug-resistant bacteria, forming polymicrobial biofilms that limit treatment options and increase the risk of severe complications. Current cleansing options are insufficient to disrupt and remove tenacious biofilms; antibiotic treatments, on the other hand, often fall short against these biofilm-embedded bacteria. This study explores an non-antibiotic approach that extends beyond conventional porphyrin-based phototherapy by using blue light (BL) in conjunction with ferric ions (Fe(III)) to disrupt and eradicate biofilms.

View Article and Find Full Text PDF

Objective: What is the effect of surgical or conservative treatment on the in-hospital outcomes of patients with combined fractures of the clavicle and ribs?

Design: Retrospective cohort study.

Setting: Two level-1 trauma centers and academic teaching hospitals in Boston, Massachusetts.

Patients: All adult patients with a clavicle fracture and ≥3 rib fractures admitted from 2016 to 2021.

View Article and Find Full Text PDF

Religion, spirituality, and DNA methylation in HPA-axis genes among Hispanic/Latino adults.

Epigenomics

December 2024

Harvard/MGH Center on Genomics, Vulnerable Populations, and Health Disparities, Mongan Institute, Department of Medicine, Massachusetts General Hospital, Boston, MA, USA.

Aim: Investigate associations between religion and spirituality (R&S) and DNA methylation of four HPA-axis genes (i.e. 14 CpG sites) among 992 adults from the Hispanic Community Health Study/Study of Latinos cohorts.

View Article and Find Full Text PDF

Fibroblasts are important components in the tumor microenvironment and can affect tumor progression and metastasis. However, the roles of genetic variants of the fibroblast-related genes (FRGs) in the prognosis of non-small-cell lung cancer (NSCLC) patients have not been reported. Therefore, we investigated the associations between 26,544 single nucleotide polymorphisms (SNPs) in 291 FRGs and survival of NSCLC patients from the Prostate, Lung, Colorectal, and Ovarian (PLCO) Cancer Screening Trial.

View Article and Find Full Text PDF

Background: The fatal diffuse midline gliomas (DMG) are characterized by an undruggable H3K27M mutation in H3.1 or H3.3.

View Article and Find Full Text PDF

Background: Epigenetic age (EA) is an age estimate, developed using DNA methylation (DNAm) states of selected CpG sites across the genome. Although EA and chronological age are highly correlated, EA may not increase uniformly with time. Departures, known as epigenetic age acceleration (EAA), are common and have been linked to various traits and future disease risk.

View Article and Find Full Text PDF

The dynamics of three-dimensional (3D) genome organization are essential to transcriptional regulation. While enhancers regulate spatiotemporal gene expression, chromatin looping is a means for enhancer-promoter interactions yielding cell-type-specific gene expression. Further, non-canonical DNA secondary structures, such as G-quadruplexes (G4s), are related to increased gene expression.

View Article and Find Full Text PDF

Objective: A recent randomized trial of a group psychosocial telehealth intervention (STRIDE) improved anxiety, depression, quality of life (QOL), symptom distress, coping, and self-efficacy to manage symptoms related to taking adjuvant endocrine therapy (AET) in women with non-metastatic hormone receptor-positive breast cancer. This study examined whether changes in coping and self-efficacy mediated intervention effects on anxiety, depression, QOL, and symptom distress.

Method: Women (N = 100) were recruited between 10/2019-06/2021 from Massachusetts General Hospital and were randomized to STRIDE or to the medication monitoring control group.

View Article and Find Full Text PDF

Wearable, self-administered transcranial photobiomodulation for major depressive disorder and sleep: A randomized, double blind, sham-controlled trial.

J Affect Disord

December 2024

Mind-Body Interface Research Centre (MBI-Lab), China Medical University Hospital, Taichung, Taiwan; An-Nan Hospital, China Medical University, Tainan, Taiwan; College of Medicine, China Medical University, Taichung, Taiwan. Electronic address:

Background: Device-based treatments exist in psychiatry for decades, but are usually operated by clinicians and require multiple office visits. Near-infrared transcranial photobiomodulation (tPBM) is a safe neurostimulation modality with potential antidepressant and hypnotic effects. We investigated the feasibility and efficacy of adjunctive tPBM treatment, self-administered by a wearable headband.

View Article and Find Full Text PDF

Context: A diagnosis of ALS can be challenging, and many people find ways to adapt. At the same time, emotional distress can arise early after an ALS diagnosis even when high quality multidisciplinary care is provided. When emotional distress occurs, it can become chronic over time, and can affect both the person living with ALS and their care-partner (together called a dyad).

View Article and Find Full Text PDF