766 results match your criteria: "National Institutes of Health Bethesda[Affiliation]"

[Guidelines for clinical trial protocols for interventions involving artificial intelligence: the SPIRIT-AI extensionDiretrizes para protocolos de ensaios clínicos com intervenções que utilizam inteligência artificial: a extensão SPIRIT-AI].

Rev Panam Salud Publica

February 2023

Centre for Patient Reported Outcomes Research Institute of Applied Health Research University of Birmingham Birmingham Reino Unido Centre for Patient Reported Outcomes Research, Institute of Applied Health Research, University of Birmingham, Birmingham, Reino Unido.

The SPIRIT 2013 statement aims to improve the completeness of clinical trial protocol reporting by providing evidence-based recommendations for the minimum set of items to be addressed. This guidance has been instrumental in promoting transparent evaluation of new interventions. More recently, there has been a growing recognition that interventions involving artificial intelligence (AI) need to undergo rigorous, prospective evaluation to demonstrate their impact on health outcomes.

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Background: Supravalvar aortic stenosis (SVAS) is a characteristic feature of Williams-Beuren syndrome (WBS). Its severity varies: ~20% of people with Williams-Beuren syndrome have SVAS requiring surgical intervention, whereas ~35% have no appreciable SVAS. The remaining individuals have SVAS of intermediate severity.

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Background: The South African government employed various nonpharmaceutical interventions (NPIs) to reduce the spread of SARS-CoV-2. Surveillance data from South Africa indicates reduced circulation of respiratory syncytial virus (RSV) throughout the 2020-2021 seasons. Here, we use a mechanistic transmission model to project the rebound of RSV in the two subsequent seasons.

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Although few resistance mechanisms for histone deacetylase inhibitors (HDACis) have been described, we recently demonstrated that TMT1A (formerly METTL7A) and TMT1B (formerly METTL7B) can mediate resistance to HDACis with a thiol as the zinc-binding group by methylating and inactivating the drug. TMT1A and TMT1B are poorly characterized, and their normal physiological role has yet to be determined. As animal model systems are often used to determine the physiological function of proteins, we investigated whether the ability of these methyltransferases to methylate thiol-based HDACis is conserved across different species.

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[Not Available].

Salud Publica Mex

September 2023

Division of Behavioral and Social Research, National Institute on Aging, National Institutes of Health. Bethesda, Maryland, United States..

The Division of Behavioral and Social Research (BSR) at the National Institute on Aging (NIA), National Institutes of Health (NIH), is the leading U.S. funder of social, behavioral, psychological, and economic research on the processes of aging at the individual and population level.

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[Not Available].

Salud Publica Mex

April 2023

Division of Cancer Epidemiology and Genetics, National Cancer Institute, National Institutes of Health. Bethesda, Maryland, USA..

Objetivo: Estimar la prevalencia e identificar determinantes de la infección por el virus del papiloma humano (VPH) en mujeres jóvenes (18-25 años). Material y métodos. Se analizaron datos de 5 871 mujeres sexualmente activas a quienes se les realizó una entrevista y toma de muestras cervicouterinas para detección de VPH y citología durante la visita de reclutamiento del Ensayo de Vacunación contra VPH16/18 en Costa Rica.

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Adolescents and young adults (AYA) with lymphoma experience treatment-related effects in the short and long term that impact their quality of life and survivorship experience. The effort to improve outcomes for AYA lymphoma survivors requires understanding the available literature, identifying current knowledge deficits, designing better clinical trials incorporating the patient perspective, using novel tools to bridge data gaps and building survivorship guidelines that translate research to clinical practice. This review article summarizes the current state of lymphoma treatment-related outcomes in AYAs and provides future direction.

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Lymphoma is one of the most common cancers in adolescents and young adults, but historically, this population has had lower clinical trial enrollment and improvements in overall survival as compared to other age populations. There are multiple challenges that are unique to this population that have affected drug development and clinical trial enrollment. Our panel of experts have identified barriers, and in this review, we discuss current methods to address these barriers as well as potential solutions moving forward.

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Background: Psoriasis is a chronic inflammatory condition associated with coronary artery disease risk. Uptake of oxidized low-density lipoprotein by the lectin-like low-density lipoprotein receptor-1 triggers release of the soluble extracellular domain of the receptor (sLOX-1). We sought to characterize the relationship between sLOX-1, inflammation, and coronary plaque progression in psoriasis.

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Article Synopsis
  • * A survey conducted in southeast Minnesota found that only 37% of people with diagnosed HF were aware of their condition, with factors such as gender, clinic attendance, and certain heart issues increasing awareness.
  • * The study highlights the need for strategies to improve patient awareness of HF to enhance self-care and overall health outcomes.
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The NADPH oxidase 1 (NOX1) complex formed by proteins NOX1, p22phox, NOXO1, NOXA1, and RAC1 plays an important role in the generation of superoxide and other reactive oxygen species (ROS) which are involved in normal and pathological cell functions due to their effects on diverse cell signaling pathways. Cell migration and invasiveness are at the origin of tumor metastasis during cancer progression which involves a process of cellular de-differentiation known as the epithelial-mesenchymal transition (EMT). During EMT cells lose their polarized epithelial phenotype and express mesenchymal marker proteins that enable cytoskeletal rearrangements promoting cell migration, expression and activation of matrix metalloproteinases (MMPs), tissue remodeling, and cell invasion during metastasis.

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  • This study explores the relationship between exercise impairments and biomarkers in heart failure with preserved ejection fraction (HFpEF), focusing on exercise rather than just resting states.
  • A detailed analysis of 277 proteins was conducted on 151 individuals, identifying specific protein signatures linked to different exercise responses, which helps reveal underlying mechanisms of HFpEF.
  • The findings suggest that these protein signatures not only highlight potential new therapeutic targets but also offer methods for early risk assessment and prevention of HFpEF.
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Sharks occupy diverse ecological niches and play critical roles in marine ecosystems, often acting as apex predators. They are considered a slow-evolving lineage and have been suggested to exhibit exceptionally low cancer rates. These two features could be explained by a low nuclear mutation rate.

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Reconstructing Re-emergent Tremor.

Mov Disord Clin Pract

September 2023

Department of Neurology and Clinical Neurophysiology Amsterdam University Medical Centers, Amsterdam Neuroscience, University of Amsterdam Amsterdam The Netherlands.

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Rare diseases and undiagnosed diseases have recently positioned themselves as clinical entities that provide important opportunities to advance our understanding of gene functions and the impact of them in the individual development. In this review, we present how efforts made over years to understand common diseases, rare diseases and even undiagnosed diseases come together today to cooperatively advances scientific knowledge. These advance in science and new acquired knowledge, make possible to apply the advances obtained in a group of clinical conditions to others with similar phenotypic characteristics or vice versa.

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Objective: To assess the effect of selective serotonin reuptake inhibitors (SSRIs) and tricyclic antidepressants (TCAs) in reducing vertigo, tinnitus, and hearing loss among patients with Meniere's disease (MD).

Data Sources: The following databases were utilized in this scoping review: Ovid Medline, PubMed-NCBI, CINAHL, Cochrane Library, Web of Science, and Clinicaltrials.gov.

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Background: Little is known about the impact of the dopamine system on development of cognitive impairment (CI) in Parkinson disease (PD).

Objectives: We used data from a multi-site, international, prospective cohort study to explore the impact of dopamine system-related biomarkers on CI in PD.

Methods: PD participants were assessed annually from disease onset out to 7 years, and CI determined by applying cut-offs to four measures: (1) Montreal Cognitive Assessment; (2) detailed neuropsychological test battery; (3) Movement Disorder Society-Unified Parkinson's Disease Rating Scale (MDS-UPDRS) cognition score; and (4) site investigator diagnosis of CI (mild cognitive impairment or dementia).

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The genetic alterations contributing to migration proficiency, a phenotypic hallmark of metastatic cells required for colonizing distant organs, remain poorly defined. Here, we used single-cell magneto-optical capture (scMOCa) to isolate fast cells from heterogeneous human breast cancer cell populations, based on their migratory ability alone. We show that captured fast cell subpopulations retain higher migration speed and focal adhesion dynamics over many generations as a result of a motility-related transcriptomic profile.

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Article Synopsis
  • The American Heart Association's "ideal cardiovascular health" (CVH) framework identifies modifiable risk factors to lower the risk of cardiovascular disease (CVD), and metabolomics can reveal connections between these factors and CVD development.
  • A study involving 3,056 adults showed that CVH scores were linked to various metabolites that were also associated with the risk of atrial fibrillation (AF) and heart failure (HF), emphasizing that certain metabolites mediate this connection.
  • Specifically, three metabolites significantly mediated the link between CVH scores and AF, while seven metabolites partially mediated the association with HF, highlighting important metabolic pathways involved in cardiovascular health.
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Encouraged by our recent findings that 4'-cyano-deoxyguanosine (2), entecavir analogues 4 and 5 are highly potent anti-hepatitis B virus (HBV) agents, we designed and synthesized 6 having a hybridized structure of 4 and 5. The chiral quaternary carbon portion at the 4'-position, which is substituted by cyano- and 5'-hydroxymethyl groups, was stereospecifically constructed by radical-mediated 5- mode cyclization of 10. The introduction of the fluorine atom into the 6''-position was achieved by radical-mediated stannylation of sulfide ()-11 and subsequent electrophilic fluorination of ()-12.

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  • This study aimed to evaluate the impact of drug and surgical treatments on monogenic insulin resistance (IR) based on genetic causes, using a systematic review of existing research.
  • A total of 49 studies were reviewed, revealing that treatments like Metreleptin and Thiazolidinediones showed promising effects on metabolic parameters such as triglycerides and hemoglobin A1c levels in patients with lipodystrophy.
  • However, the overall quality of evidence was low, making it difficult to draw strong conclusions for specific genotype-based treatments, with many treatment regimens lacking comprehensive studies.
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