1,978 results match your criteria: "Pacific Northwest Diabetes Research Institute; aimee.dudley@gmail.com.[Affiliation]"

Subcutaneous white adipose tissue (scWAT) is a dynamic storage and secretory organ that regulates systemic homeostasis, yet the impact of endurance exercise training (ExT) and sex on its molecular landscape is not fully established. Utilizing an integrative multi-omics approach, and leveraging data generated by the Molecular Transducers of Physical Activity Consortium (MoTrPAC), we show profound sexual dimorphism in the scWAT of sedentary rats and in the dynamic response of this tissue to ExT. Specifically, the scWAT of sedentary females displays -omic signatures related to insulin signaling and adipogenesis, whereas the scWAT of sedentary males is enriched in terms related to aerobic metabolism.

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Article Synopsis
  • - Metformin shows antiviral properties against SARS-CoV-2 by inhibiting protein translation through the mechanistic target of rapamycin pathway, leading to significant reductions in hospitalizations, emergency visits, and long COVID risk in the COVID-OUT trial.
  • - The COVID-OUT trial involved 999 participants and compared metformin, fluvoxamine, and ivermectin; it found a 3.6-fold reduction in viral load with metformin compared to placebo, and reduced rates of detectable viral load and viral rebound.
  • - The results indicate that metformin effectively lowers SARS-CoV-2 viral load, potentially explaining its clinical effectiveness, while neither ivermectin nor fluvoxamine showed significant benefits over placebo.
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Background: Cardiovascular disease is the leading cause of death among patients with Duchenne muscular dystrophy (DMD). Identifying patients at risk of early death could allow for increased monitoring and more intensive therapy. Measures that associate with death could serve as surrogate outcomes in clinical trials.

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Objective: Hispanic/Latino individuals in the U.S. have the highest prevalence of undiagnosed and untreated diabetes and are at increased risk for cognitive impairment.

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Introduction: The increasing burden of non-communicable diseases, such as hypertension, diabetes and dyslipidaemia, presents key challenges to achieving optimal HIV care outcomes among ageing people living with HIV. These diseases are often comorbid and are exacerbated by psychosocial and structural inequities. This interaction among multiple health conditions and social factors is referred to as a syndemic.

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Recommendations on fit-for-purpose criteria to establish quality management for microphysiological systems and for monitoring their reproducibility.

Stem Cell Reports

May 2024

CAAT Europe, University of Konstanz, Konstanz, Germany; In vitro Toxicology and Biomedicine, Department inaugurated by the Doerenkamp-Zbinden foundation, University of Konstanz, Konstanz, Germany.

Cell culture technology has evolved, moving from single-cell and monolayer methods to 3D models like reaggregates, spheroids, and organoids, improved with bioengineering like microfabrication and bioprinting. These advancements, termed microphysiological systems (MPSs), closely replicate tissue environments and human physiology, enhancing research and biomedical uses. However, MPS complexity introduces standardization challenges, impacting reproducibility and trust.

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Effect of SARS-CoV-2 S protein on the proteolytic cleavage of the epithelial Na+ channel ENaC.

PLoS One

April 2024

Department of Nephrology and Mineral Metabolism, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico.

Severe cases of COVID-19 are characterized by development of acute respiratory distress syndrome (ARDS). Water accumulation in the lungs is thought to occur as consequence of an exaggerated inflammatory response. A possible mechanism could involve decreased activity of the epithelial Na+ channel, ENaC, expressed in type II pneumocytes.

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Background: Lifestyle choices, metformin, and dietary supplements may prevent GDM, but the effect of intervention characteristics has not been identified. This review evaluated intervention characteristics to inform the implementation of GDM prevention interventions.

Methods: Ovid, MEDLINE/PubMed, and EMBASE databases were searched.

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Background: Although sodium glucose co-transporter 2 inhibitors (SGLT2is) improve heart failure (HF)-related symptoms and outcomes in HF with preserved ejection fraction (HFpEF), underlying mechanisms remain unclear. In HF with reduced EF, dapagliflozin altered ketone and fatty acid metabolites vs placebo; however, metabolite signatures of SGLT2is have not been well elucidated in HFpEF.

Objectives: The goal of this study was to assess whether SGLT2i treatment altered systemic metabolic pathways and their relationship to outcomes in HFpEF.

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Racial Discrimination and Metabolic Syndrome in Young Black Adults.

JAMA Netw Open

April 2024

Department of Psychology and Institute for Policy Research, Northwestern University, Evanston, Illinois.

Importance: Metabolic syndrome (MetS) is a common health condition that predisposes individuals to cardiovascular disease (CVD) and disproportionately affects Black and other racially and ethnically minoritized people. Concurrently, Black individuals also report more exposure to racial discrimination compared with White individuals; however, the role of discrimination in the development of MetS over time and associated mediators in these pathways remain underexplored.

Objective: To evaluate the association between racial discrimination and MetS in rural Black individuals transitioning from late adolescence into early adulthood and to identify potential mediating pathways.

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Molecular Transducers of Physical Activity Consortium (MoTrPAC): human studies design and protocol.

J Appl Physiol (1985)

September 2024

Duke University, Durham, North Carolina, United States.

Physical activity, including structured exercise, is associated with favorable health-related chronic disease outcomes. Although there is evidence of various molecular pathways that affect these responses, a comprehensive molecular map of these molecular responses to exercise has not been developed. The Molecular Transducers of Physical Activity Consortium (MoTrPAC) is a multicenter study designed to isolate the effects of structured exercise training on the molecular mechanisms underlying the health benefits of exercise and physical activity.

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We aim to examine the association of sleep duration, sleep quality, late chronotype, and circadian misalignment with glycemic control and risk of complications in young adults with youth-onset type 2 diabetes followed in the Treatment Options for Type 2 Diabetes in Adolescents and Youth (TODAY) study. Self-reported sleep duration, quality, timing, and circadian misalignment were assessed via a modified Pittsburgh Sleep Quality Index (PSQI) questionnaire, and chronotype was assessed via the Morningness-Eveningness Questionnaire (MEQ). We examined diabetes complications including loss of glycemic control (defined as hemoglobin A1c ≥8%), hypertension, dyslipidemia, albuminuria, and diabetic peripheral neuropathy.

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  • The STEP-HFpEF and STEP-HFpEF DM trials investigated the effects of the GLP-1 receptor agonist semaglutide on individuals with obesity-related heart failure, showing improvements in symptoms, physical limitations, body weight, and exercise function.
  • A pooled analysis was conducted to assess the effects of semaglutide across various outcomes and determine consistency among different patient subgroups, utilizing data from randomized, double-blind, placebo-controlled trials.
  • Participants were assigned to receive either semaglutide or a placebo for 52 weeks, with primary endpoints focusing on changes in heart failure-related symptoms and body weight, and secondary endpoints assessing physical activity and inflammation markers.
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  • Evidence shows that living near green spaces can benefit mental health, but research on their impact on children's early mental health symptoms is limited.
  • The study aims to investigate how residential green space is associated with early internalizing (like anxiety and depression) and externalizing (like aggression and rule-breaking) symptoms in children.
  • It uses data from a cohort of US children born between 2007 and 2013, analyzing their mental health outcomes in relation to green space exposure measured through satellite data, while considering various socioeconomic and demographic factors.
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Background: U.S. nationwide estimates of the proportion of patients newly diagnosed with heart failure with reduced ejection fraction (HFrEF) eligible for quadruple medical therapy, and the associated benefits of rapid implementation, are not well characterized.

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Introduction: Noncommunicable diseases (NCDs) are associated with a high and rising burden of morbidity and mortality in sub-Saharan Africa, including Nigeria. Diabetes mellitus (DM) is among the leading causes of NCD-related deaths worldwide and is a foremost public health problem in Nigeria. As part of the National Multi-Sectoral Action Plan for the Prevention and Control of NCDs, Nigeria has committed to implementing the World Health Organization (WHO) Package of Essential NCD control interventions.

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Background And Aims: South Asian adults (SA) are at higher risk for atherosclerotic cardiovascular disease (ASCVD) compared with other racial/ethnic groups. Life's Simple 7 (LS7) is a guideline-recommended, cardiovascular health (CVH) construct to guide optimization of cardiovascular risk factors. We sought to assess if the LS7 metrics predict coronary artery calcium (CAC) incidence and progression in asymptomatic SA compared with four other racial/ethnic groups.

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Adverse Pregnancy Outcomes and Predicted 30-Year Risk of Maternal Cardiovascular Disease 2-7 Years After Delivery.

Obstet Gynecol

June 2024

Departments of Obstetrics and Gynecology, The Ohio State University, Columbus, Ohio; Northwestern University, Chicago, Illinois; University of California, Irvine, Orange, California; University of Pennsylvania, Philadelphia, and University of Pittsburgh, Pittsburgh, Pennsylvania; Indiana University, Indianapolis, Indiana; Columbia University, New York, New York; and Eastern Virginia Medical College, Norfolk, Virginia; the Department of Preventive Medicine, Northwestern University, Chicago, Illinois; RTI International, Durham, North Carolina; the Division of Cardiovascular Sciences, National Heart, Lung, and Blood Institute, National Institutes of Health, Bethesda, Maryland; and the Barbra Streisand Women's Heart Center, Smidt Heart Institute, Cedars Sinai Medical Center, Los Angeles, California.

Objective: To determine whether adverse pregnancy outcomes are associated with a higher predicted 30-year risk of atherosclerotic cardiovascular disease (CVD; ie, coronary artery disease or stroke).

Methods: This was a secondary analysis of the prospective Nulliparous Pregnancy Outcomes Study-Monitoring Mothers-to-Be Heart Health Study longitudinal cohort. The exposures were adverse pregnancy outcomes during the first pregnancy (ie, gestational diabetes mellitus [GDM], hypertensive disorder of pregnancy, preterm birth, and small- and large-for-gestational-age [SGA, LGA] birth weight) modeled individually and secondarily as the cumulative number of adverse pregnancy outcomes (ie, none, one, two or more).

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Risk Factors for Incident Polycystic Ovary Syndrome Diagnosis.

J Womens Health (Larchmt)

July 2024

Department of Obstetrics and Gynecology, School of Medicine, University of Washington, Seattle, Washington, USA.

While highly prevalent, risk factors for incident polycystic ovary syndrome (PCOS) are poorly delineated. Using a population-based cohort, we sought to identify predictors of incident PCOS diagnosis. A matched case-control analysis was completed utilizing patients enrolled in Kaiser Permanente Washington from 2006 to 2019.

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Article Synopsis
  • The study highlights the advantages of liquid chromatography-tandem mass spectrometry (LC-MS/MS) over traditional immunoassays for measuring insulin and C-peptide, which can enhance patient care quality.
  • Researchers from the TaMADOR consortium conducted rigorous testing to ensure the assay's precision and linearity across different laboratories, using shared materials for consistency.
  • Results showed strong performance metrics, indicating that LC-MS/MS could standardize measurements and improve accuracy in diabetes research and patient management.
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With improved survival, adults living with HIV (ALHIV) are increasingly likely to experience age-related and HIV-related comorbidities, including renal insufficiency. Other risk factors for renal insufficiency (high blood pressure (BP), obesity, diabetes, and dyslipidemia) are also growing more common among ALHIV. To determine the prevalence of renal insufficiency (defined as an eGFR < 60 mL/min/1.

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Objective: This study investigated disparities in diabetes and prediabetes prevalence among US children and adolescents using 2019-2021 National Health Interview Survey (NHIS) data. With rising trends in diabetes, understanding prevalence rates and associated disparities is crucial for targeted interventions.

Methods: Analyzing a cross-sectional sample of 19,490 participants aged 3-17, we employed NHIS data to calculate prevalence rates.

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Background: There are little data on changes in insulin sensitivity during the first few years of life following in utero human immunodeficiency virus (HIV) and antiretroviral (ARV) exposure.

Methods: The Tshilo Dikotla study enrolled pregnant persons with HIV (PWH) (receiving tenofovir/emtricitabine or lamivudine plus dolutegravir or efavirenz) and pregnant individuals without HIV, as well as their liveborn children. Newborns were randomized to receive either zidovudine (AZT) or nevirapine (NVP) postnatal prophylaxis.

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  • - Increased lactate levels from glycolysis are being studied as potential markers for metabolic changes in neurons, linked to a drop in brain pH, which has been associated with various neuropsychiatric disorders like schizophrenia and autism.
  • - Research shows that these pH and lactate changes are common across different animal models, including those for depression, epilepsy, and Alzheimer's disease, though findings vary, particularly within the autism spectrum.
  • - A large-scale analysis indicated that higher lactate levels correlate with worse working memory performance, suggesting that altered brain chemistry might reflect underlying conditions across multiple disorders.
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This article examines the importance of advanced glycation endproducts (AGEs) and summarizes the structure of AGEs, pathological changes associated with AGEs, the contribution of AGEs to metabolic memory, and the value of AGEs as a predictor of diabetic complications and cardiovascular disease in people with and without diabetes. As a practical focus, skin autofluorescence (SAF) is examined as an attractive approach for estimating AGE burden. The measurement of AGEs may be of significant value to specific individuals and groups, including Black and Hispanic/Latino Americans, as they appear to have higher concentrations of hemoglobin A (HbA) than would be predicted by other metrics of mean glycemia.

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