The Role of Intersectional Stigma in Coronary Artery Disease Among Cisgender Women Aging with HIV.

Cisgender women living with HIV experience elevated cardiovascular disease (CVD) risk that increases with age, a concern given extended life expectancies for people living with HIV. The CVD risk disparity among cisgender women aging with HIV is understudied and remains unclear. Taking a psychoneuroimmunology approach, given this group's intersecting marginalized identities, one potential driver of the disparity is intersectional stigma.

Comparison of k-mer-based comparative metagenomic tools and approaches.

Comparative metagenomic analysis requires measuring a pairwise similarity between metagenomes in the dataset. Reference-based methods that compute a beta-diversity distance between two metagenomes are highly dependent on the quality and completeness of the reference database, and their application on less studied microbiota can be challenging. On the other hand, comparative metagenomic methods only rely on the sequence composition of metagenomes to compare datasets.

Ontology-driven analysis of marine metagenomics: what more can we learn from our data?

Background: The proliferation of metagenomic sequencing technologies has enabled novel insights into the functional genomic potentials and taxonomic structure of microbial communities. However, cyberinfrastructure efforts to manage and enable the reproducible analysis of sequence data have not kept pace. Thus, there is increasing recognition of the need to make metagenomic data discoverable within machine-searchable frameworks compliant with the FAIR (Findability, Accessibility, Interoperability, and Reusability) principles for data stewardship.

A tissue injury sensing and repair pathway distinct from host pathogen defense.

Pathogen infection and tissue injury are universal insults that disrupt homeostasis. Innate immunity senses microbial infections and induces cytokines/chemokines to activate resistance mechanisms. Here, we show that, in contrast to most pathogen-induced cytokines, interleukin-24 (IL-24) is predominately induced by barrier epithelial progenitors after tissue injury and is independent of microbiome or adaptive immunity.

Developing a stress induction tool relevant to relationships in a health context.

Concerns pertaining to health and to problems in close relationships are both known to be major stressors, yet existing tools are inadequate to assess individual reactions to such stressors. Thus, we sought to develop and preliminarily validate a stress-inducing task for use in a laboratory setting that pertains to the sorts of health-related concerns people face in close relationships. Heterosexual dating couples (44 individuals: mean age 22) were randomized to be paired with their own partner or a stranger and to play a role of speaker or listener.

Heterogeneous melting near the Thwaites Glacier grounding line.

Thwaites Glacier represents 15% of the ice discharge from the West Antarctic Ice Sheet and influences a wider catchment. Because it is grounded below sea level, Thwaites Glacier is thought to be susceptible to runaway retreat triggered at the grounding line (GL) at which the glacier reaches the ocean. Recent ice-flow acceleration and retreat of the ice front and GL indicate that ice loss will continue.

Evaluation of computational phage detection tools for metagenomic datasets.

Introduction: As new computational tools for detecting phage in metagenomes are being rapidly developed, a critical need has emerged to develop systematic benchmarks.

Methods: In this study, we surveyed 19 metagenomic phage detection tools, 9 of which could be installed and run at scale. Those 9 tools were assessed on several benchmark challenges.

Echocardiographic Features of Longevity: A Cross-Sectional Study of Centenarians.

Background: Centenarians represent an under-studied population within cardiovascular medicine. This study aimed to describe the echocardiographic characteristics of a cohort of centenarians at a tertiary referral center.

Materials And Methods: The institutional Echocardiography database was retrospectively reviewed and identified 100 consecutive centenarians referred for transthoracic echocardiography between January 2009 and December 2020.

Circulating endothelial and angiogenic cells predict hippocampal volume as a function of HIV status.

Circulating endothelial cells (CECs) and myeloid angiogenic cells (MACs) have the capacity to stabilize human blood vessels in vivo. Evidence suggests that these cells are depleted in dementia and in persons living with HIV (PWH), who have a higher prevalence of dementia and other cognitive deficits associated with aging. However, the associations of CECs and MACs with MRI-based measures of aging brain health, such as hippocampal gray matter volume, have not been previously demonstrated.

Network analysis reveals dysregulated functional patterns in type II diabetic skin.

Skin disorders are one of the most common complications of type II diabetes (T2DM). Long-term effects of high blood glucose leave individuals with T2DM more susceptible to cutaneous diseases, but its underlying molecular mechanisms are unclear. Network-based methods consider the complex interactions between genes which can complement the analysis of single genes in previous research.

Sex differences in the association of vital exhaustion with regional fat deposition and subclinical cardiovascular disease risk.

Objective: Vital exhaustion (VE) is more strongly associated with cardiovascular disease (CVD) risk for women than men. This study examined whether sex differences in associations of VE with CVD risk markers are accounted for by unique associations of VE with regional adiposity.

Methods: The study enrolled 143 persons (18-55 years) without diagnosed conditions.

Abacavir antiretroviral therapy and indices of subclinical vascular disease in persons with HIV.

Objective: Indices of cardiovascular disease (CVD) risk, vascular endothelial dilation, arterial stiffness and endothelial repair were examined in persons with HIV (PWH) on an antiretroviral therapy (ART) that included abacavir (ABC+) in comparison with PWH on ART without abacavir (ABC-), and with HIV seronegative (HIV-) individuals.

Approach: The 115 participants (63% men), aged 30-50 years, did not have CVD, metabolic, endocrine, or chronic renal conditions. PWH were on stable ART for six-months or more.

Hepatic FoxOs link insulin signaling with plasma lipoprotein metabolism through an apolipoprotein M/sphingosine-1-phosphate pathway.

Multiple beneficial cardiovascular effects of HDL depend on sphingosine-1-phosphate (S1P). S1P associates with HDL by binding to apolipoprotein M (ApoM). Insulin resistance is a major driver of dyslipidemia and cardiovascular risk.

Ontology-Enriched Specifications Enabling Findable, Accessible, Interoperable, and Reusable Marine Metagenomic Datasets in Cyberinfrastructure Systems.

Marine microbial ecology requires the systematic comparison of biogeochemical and sequence data to analyze environmental influences on the distribution and variability of microbial communities. With ever-increasing quantities of metagenomic data, there is a growing need to make datasets Findable, Accessible, Interoperable, and Reusable (FAIR) across diverse ecosystems. FAIR data is essential to developing analytical frameworks that integrate microbiological, genomic, ecological, oceanographic, and computational methods.

Role of the gut microbiome in cardiovascular drug response: The potential for clinical application.

Response to cardiovascular drugs can vary greatly between individuals, and the role of the microbiome in this variability is being increasingly appreciated. Recent evidence indicates that bacteria and other microbes are responsible for direct and indirect effects on drug efficacy and toxicity. Pharmacomicrobiomics aims to uncover variability in drug response due to microbes in the human body, which may alter drug disposition through microbial metabolism, interference by microbial metabolites, or modification of host enzymes.

Predicting cardiovascular risk using a novel risk score in young and middle-age adults with HIV: associations with biomarkers and carotid atherosclerotic plaque.

Background: Traditional risk factors associated with cardiovascular disease (CVD) include older age, smoking, poor diet, lack of exercise, obesity, high blood pressure, high cholesterol, and family history. Young-to-middle age adults (YMAA) are less often identified as being at risk of CVD, but traditional risk scores primarily target older adults and do not accurately estimate risk among YMAA.

Methods: This study examined biomarkers associated with CVD risk in YMAA in the context of HIV and cocaine use; risk was assessed by two methods: (1) a relative cardiovascular (CV) risk score that includes several factors and (2) carotid atherosclerotic plaque.

Systemic Inflammation and Cognitive Decrements in Patients With Stage B Heart Failure.

Objective: This study aimed to investigate the role of systemic inflammation in reduced cognitive functioning in patients with early-stage heart failure (HF) while determining associations with other cardiovascular risk factors.

Methods: Patients with stage B HF (n = 270; mean [standard deviation] age = 66.1 [10.

Cyanolichen microbiome contains novel viruses that encode genes to promote microbial metabolism.

Lichen thalli are formed through the symbiotic association of a filamentous fungus and photosynthetic green alga and/or cyanobacterium. Recent studies have revealed lichens also host highly diverse communities of secondary fungal and bacterial symbionts, yet few studies have examined the viral component within these complex symbioses. Here, we describe viral biodiversity and functions in cyanolichens collected from across North America and Europe.

Content Validation for an Emergency Department Fall Risk Assessment Instrument.

Purpose: There are many falls risk assessment tools available for inpatient use; however, few have been validated for the emergency department population. The purpose of this study was to develop a valid instrument to capture fall risk specific to that population.

Design: Using clinical expertise and evidence from the literature, the Hurwitz Fall Risk Assessment Instrument was developed.