193 results match your criteria: "Ralph H Johnson Veterans Administration Medical Center[Affiliation]"
Neurochem Res
November 2024
Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC, 29425, USA.
Neuroscience
January 2025
Department of Pathology and Laboratory Medicine, Medical University of South Carolina, Charleston, SC, USA. Electronic address:
Previously, we reported that both S-nitrosoglutathione (GSNO), a carrier of cellular nitric oxide, and N6022, an injectable form of GSNO reductase (GSNOR) inhibitor that increases endogenous GSNO levels, alleviate experimental autoimmune encephalomyelitis (EAE) in mice by suppressing Th1 and Th17 immune responses. Building on these findings, we explored the role of GSNOR in EAE pathogenesis and evaluated the efficacy of an orally active GSNOR inhibitor (N91115) in treating the EAE disease. EAE mice exhibited heightened expression/activity of GSNOR in the spinal cord, and the knockout of the GSNOR gene resulted in much milder clinical manifestations of EAE, with lower degrees of demyelination and axonal loss, reduced microglial and astrocyte activations, as well as suppressed Th1 and Th17 cell responses, alongside bolstered Treg immune responses.
View Article and Find Full Text PDFJ Am Coll Cardiol
October 2024
British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow, United Kingdom. Electronic address:
Eur J Heart Fail
August 2024
British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Biomedicines
May 2024
Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA.
Parkinson's disease (PD), a progressive neurodegenerative disease, has no cure, and current therapies are not effective at halting disease progression. The disease affects mid-brain dopaminergic neurons and, subsequently, the spinal cord, contributing to many debilitating symptoms associated with PD. The GTP-binding protein, Rho, plays a significant role in the cellular pathology of PD.
View Article and Find Full Text PDFEur J Heart Fail
May 2024
British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Aims: Patients with heart failure (HF) and preserved ejection fraction (HFpEF) have a particularly high prevalence of comorbidities, often necessitating treatment with many medications. The aim of this study was to evaluate the association between polypharmacy status and outcomes in PARAGON-HF.
Methods And Results: In this post hoc analysis, baseline medication status was available in 4793 of 4796 patients included in the primary analysis of PARAGON-HF.
Int J Mol Sci
March 2024
Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA.
The neuromuscular junction (NMJ) is a crucial structure that connects the cholinergic motor neurons to the muscle fibers and allows for muscle contraction and movement. Despite the interruption of the supraspinal pathways that occurs in spinal cord injury (SCI), the NMJ, innervated by motor neurons below the injury site, has been found to remain intact. This highlights the importance of studying the NMJ in rodent models of various nervous system disorders, such as amyotrophic lateral sclerosis (ALS), Charcot-Marie-Tooth disease (CMT), spinal muscular atrophy (SMA), and spinal and bulbar muscular atrophy (SBMA).
View Article and Find Full Text PDFNeurochem Int
May 2024
Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, 29425, USA; Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, 29425, USA; Ralph H. Johnson Veterans Administration Medical Center, Charleston, SC, 29401, USA. Electronic address:
Front Pharmacol
December 2023
Department of Pediatrics, Medical University of South Carolina, Charleston, SC, United States.
The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which initially surfaced in late 2019, often triggers severe pulmonary complications, encompassing various disease mechanisms such as intense lung inflammation, vascular dysfunction, and pulmonary embolism. Currently, however, there's no drug addressing all these mechanisms simultaneously. This study explored the multi-targeting potential of S-nitrosoglutathione (GSNO) and N6022, an inhibitor of GSNO reductase (GSNOR) on markers of inflammatory, vascular, and thrombotic diseases related to COVID-19-induced acute lung disease.
View Article and Find Full Text PDFEur J Heart Fail
February 2024
British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Aim: Blood urea nitrogen (BUN) to creatinine ratio is associated with worse outcomes in acute heart failure (HF) but little is known about its importance in chronic HF.
Methods And Results: We combined individual patient data from clinical trials (HF with reduced ejection fraction [HFrEF]: PARADIGM-HF, ATMOSPHERE and DAPA-HF, and HF with preserved ejection fraction [HFpEF]: PARAGON-HF and I-PRESERVE). The primary outcome examined was a composite time to first HF hospitalization or cardiovascular death; its components and all-cause death were also examined.
Drug Alcohol Depend
January 2024
Departments of Public Health Sciences, Medical University of South Carolina, Charleston, SC, USA; Ralph H. Johnson Veterans Administration Medical Center, Charleston, SC, USA.
Background: Cannabis use disorder (CUD) is a common and consequential disorder. When applied to the dorsolateral prefrontal cortex (DLPFC), repetitive transcranial magnetic stimulation (rTMS) reduces craving across substance use disorders and may have therapeutic clinical effects when applied in serial-sessions. The present study sought to preliminarily determine whether serial-sessions of rTMS applied to the DLPFC had a therapeutic effect in CUD.
View Article and Find Full Text PDFESC Heart Fail
February 2024
British Heart Foundation Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK.
Biomedicines
September 2023
Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC 29425, USA.
Osteoporosis is a common skeletal disorder which can severely limit one's ability to complete daily tasks due to the increased risk of bone fractures, reducing quality of life. Spinal cord injury (SCI) can also result in osteoporosis and sarcopenia. Most individuals experience sarcopenia and osteoporosis due to advancing age; however, individuals with SCI experience more rapid and debilitating levels of muscle and bone loss due to neurogenic factors, musculoskeletal disuse, and cellular/molecular events.
View Article and Find Full Text PDFmedRxiv
July 2023
Departments of Public Health Sciences, Medical University of South Carolina, Charleston, South Carolina, USA.
Background: Cannabis use disorder (CUD) is a common and consequential disorder. When applied to the dorsolateral prefrontal cortex (DLPFC), repetitive transcranial magnetic stimulation (rTMS) reduces craving across substance use disorders and may have a therapeutic clinical effect when applied in serial sessions. The present study sought to preliminarily determine whether serial sessions of rTMS applied to the DLPFC had a therapeutic effect in CUD.
View Article and Find Full Text PDFEur J Heart Fail
August 2023
Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
Aims: Adrenomedullin is a vasodilatory peptide with a role in microcirculatory and endothelial homeostasis. Adrenomedullin is a substrate for neprilysin and may therefore play a role in beneficial effects of sacubitril/valsartan (Sac/Val) treatment.
Methods And Results: Mid-regional pro-adrenomedullin (MR-proADM) was measured in 156 patients with heart failure with reduced ejection fraction (HFrEF) treated with Sac/Val and 264 patients with heart failure with preserved ejection fraction (HFpEF) randomized to treatment with Sac/Val or valsartan.
J Card Fail
November 2023
Cardiovascular Division, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA. Electronic address:
Objective: In this post hoc analysis of the PARAGON-HF (Prospective Comparison of ARNI with ARB Global Outcomes in HFpEF) trial, we evaluated clinical outcomes and responses to sacubitril/valsartan by duration of heart failure (HF) with left ventricular ejection fraction ≥ 45% at initial diagnosis.
Methods And Results: The primary outcome was a composite of total hospitalizations due to HF and cardiovascular deaths, analyzed by using a semiparametric proportional rates method, stratified by geographic region. Among 4784 (99.
JACC Heart Fail
August 2023
Saint Luke's Mid America Heart Institute and University of Missouri-Kansas City School of Medicine, Kansas City, Missouri, USA.
Background: Although studies consistently show that beta-blockers reduce morbidity and mortality in patients with reduced ejection fraction (EF), data are inconsistent in patients with heart failure with mildly reduced ejection fraction (HFmrEF) and suggest potential negative effects in heart failure with preserved ejection fraction (HFpEF).
Objectives: The purpose of this study was to examine the association of beta-blockers with heart failure (HF) hospitalization and death in patients with HF and EF ≥40% METHODS: Beta-blocker use was assessed at first encounter in outpatients ≥65 years of age with HFmrEF and HFpEF in the U.S.
Int Psychogeriatr
November 2023
Sunnybrook Research Institute, Toronto, ON, Canada.
Background: This paper used data from the Apathy in Dementia Methylphenidate Trial 2 (NCT02346201) to conduct a planned cost consequence analysis to investigate whether treatment of apathy with methylphenidate is economically attractive.
Methods: A total of 167 patients with clinically significant apathy randomized to either methylphenidate or placebo were included. The Resource Utilization in Dementia Lite instrument assessed resource utilization for the past 30 days and the EuroQol five dimension five level questionnaire assessed health utility at baseline, 3 months, and 6 months.
Aims: The 2021 Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation combining creatinine and cystatin C provides a better estimation of glomerular filtration rate (GFR) compared to the creatinine-only equation.
Methods And Results: CKD-EPI creatinine-cystatin C equation (creatinine-cystatin) was compared to creatinine-only (creatinine) equation in a subpopulation of Prospective comparison of ARNI with ACEI to Determine Impact on Global Mortality and morbidity in Heart Failure (PARADIGM-HF). Patients were categorized according to difference in eGFR using the two equations: Group 1 (<-10 mL/min/1.
Eur Heart J
April 2023
British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow, UK.
Aims: Although body mass index (BMI) is the most commonly used anthropometric measure, newer indices such as the waist-to-height ratio, better reflect the location and amount of ectopic fat, as well as the weight of the skeleton, and may be more useful.
Methods And Results: The prognostic value of several newer anthropometric indices was compared with that of BMI in patients with heart failure (HF) and reduced ejection fraction (HFrEF) enrolled in prospective comparison of ARNI with ACEI to determine impact on global mortality and morbidity in heart failure. The primary outcome was HF hospitalization or cardiovascular death.
Circ Heart Fail
March 2023
British Heart Foundation Cardiovascular Research Centre, University of Glasgow, United Kingdom (J.H.B., W.I., P.D., P.S.J., J.J.V.M.).
Background: The ratio of ucGMP (urinary cyclic guanosine monophosphate) to BNP (B-type natriuretic peptide) is thought to reflect the responsiveness of tissues to natriuretic peptides.
Methods: We examined the relationship between ucGMP/BNP ratio and clinical outcomes, the effect of sacubitril/valsartan, compared with enalapril, on the ucGMP/BNP ratio, and the efficacy of sacubitril/valsartan on clinical outcomes according to baseline ucGMP/BNP ratio in PARADIGM-HF trial (Prospective Comparison of ARNI With ACEI to Determine Impact on Global Mortality and Morbidity in Heart Failure). ucGMP/BNP ratio was available at baseline (N=2031), 1 month (N=1959), and 8 months after randomization (N=1746).
Eur Heart J
February 2023
British Heart Foundation Cardiovascular Research Centre, University of Glasgow, Glasgow G12 8TA, United Kingdom.
Aims: Few reports have examined the incidence of ventricular tachycardia (VT) and ventricular fibrillation (VF) or their relationship with mortality in patients with heart failure with mildly reduced ejection fraction (HFmrEF) or heart failure with preserved ejection fraction (HFpEF).
Methods And Results: Data from the PARAGON-HF, TOPCAT, I-Preserve, and CHARM-Preserved trials were merged. VT/VF, reported as adverse events, were identified.
Neural Regen Res
July 2023
Department of Microbiology and Immunology; Department of Neurosurgery, Medical University of South Carolina; Ralph H. Johnson Veterans Administration Medical Center, Charleston, SC, USA.
Spinal cord injury (SCI) is a debilitating condition characterized by damage to the spinal cord resulting in loss of function, mobility, and sensation with no U.S. Food and Drug Administration-approved cure.
View Article and Find Full Text PDFJAMA Cardiol
February 2023
Division of Cardiovascular Medicine, Brigham and Women's Hospital, Boston, Massachusetts.
Importance: Heart failure (HF) treatment recommendations are centered on New York Heart Association (NYHA) classification, such that most apparently asymptomatic patients are not eligible for disease-modifying therapies.
Objectives: To assess within-patient variation in NYHA classification over time, the association between NYHA class and an objective measure of HF severity (N-terminal pro-B-type natriuretic peptide [NT-proBNP] level), and their association with long-term prognosis in the PARADIGM-HF trial.
Design, Setting, And Participants: All patients in PARADIGM-HF were in NYHA class II or higher at baseline and were treated with sacubitril-valsartan during a 6- to 10-week run-in period before randomization.
Orthod Craniofac Res
August 2023
Department of Biomedical Education & Anatomy, The Ohio State University College of Medicine, Columbus, Ohio, USA.
Objectives: Antidepressants, specifically Selective Serotonin Re-uptake Inhibitors (SSRIs), that alter serotonin metabolism are currently the most commonly prescribed drugs for the treatment of depression. There is some evidence to suggest these drugs contribute to birth defects. As jaw development is often altered in craniofacial birth defects, the purpose of this study was to interrogate the effects of in utero SSRI exposure in a preclinical model of mandible development.
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