Publications by authors named "Gerhardt T"

Article Synopsis
  • Sleep plays a crucial role in heart health, especially after a heart attack (myocardial infarction), by influencing inflammatory responses and healing processes.
  • After a heart attack, certain immune cells (monocytes) are recruited to the brain to promote sleep, which helps reduce harmful stress on the heart and supports recovery.
  • Disruption of sleep can worsen heart function and increase the risk of further cardiovascular issues, as poor sleep can reprogram immune cells in a way that enhances inflammation and hinders the healing process.
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The opioid epidemic in the United States (US) has prompted innovative responses from law enforcement agencies including specialized units to refer overdose survivors to substance use treatment following an overdose. However, traditional law enforcement outreach does not address the multilevel barriers to treatment engagement that lead to repeat overdose-related calls for service. The current evaluation explored the process components and outcomes of a Comprehensive Opioid Abuse Program (COAP) initiative within a local law enforcement agency in the Southeast US.

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Atherosclerosis remains the leading cause of death globally. Although its focal pathology is atheroma that develops in arterial walls, atherosclerosis is a systemic disease involving contributions by many organs and tissues. It is now established that the immune system causally contributes to all phases of atherosclerosis.

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Article Synopsis
  • The study aims to understand the immune cell composition in human atherosclerotic plaques, which differs significantly from what is observed in mouse models, often used for research.
  • Single-cell RNA sequencing was employed to reveal a diverse immune cell landscape in human plaques, primarily consisting of T-cells, highlighting activation and memory formation that aren't adequately represented in mice.
  • The findings suggest that traditional mouse models may not effectively translate to human atherosclerosis, particularly regarding activated T-cell responses, posing questions about their relevance in studying adaptive immune cell behavior.
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We quilombola women, a documentary that considers the quilombola identity and the right to COVID-19 vaccination, evokes notions of priority, rights, privileges and identity during the process of matching the number of vaccine doses available to citizens' arms. Omission by a Brazilian federal government grounded in necro-politics and denial, plus a lack of information, led quilombo communities to take it on themselves to draw up lists of those eligible for vaccination. The production team's aim was to use images as political language in the health field, so as to document and give visibility to these issues as one illustration of combating social and health inequalities and inequities rooted in structural racism.

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Background: Cholesterol crystals (CCs) represent a feature of advanced atherosclerotic plaque and may be assessed by optical coherence tomography (OCT). Their impact on cardiovascular outcomes in patients presenting with acute coronary syndromes (ACS) is yet unknown.

Methods: The culprit lesion (CL) of 346 ACS-patients undergoing preintervention OCT imaging were screened for the presence of CCs and divided into two groups accordingly.

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Background: Multimorbidity (two or more comorbidities) is common among patients with acute heart failure, but comprehensive global information on its prevalence and clinical consequences across different world regions and income levels is scarce. This study aimed to investigate the prevalence of multimorbidity and its effect on pharmacotherapy and prognosis in participants of the REPORT-HF study.

Methods: REPORT-HF was a prospective, multicentre, global cohort study that enrolled adults (aged ≥18 years) admitted to hospital with a primary diagnosis of acute heart failure from 358 hospitals in 44 countries on six continents.

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Background And Aims: Spotty calcium deposits (SCD) represent a vulnerable plaque feature which seems to result - as based on recent invitro studies - from inflammatory vessel-wall interactions. SCD can be reliably assessed by optical coherence tomography (OCT). Their prognostic impact is yet unknown.

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The processing of the retrospective data pool for ophthalmology holds huge potential, especially for the research sector. "Big Data" enables medical science to draw conclusions for the future from historical data. Based on the evaluation of such data, algorithms could be trained, for instance, that are capable of making decisions with the help of artificial intelligence.

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Aims: Coronary microevaginations (CMEs) represent an outward bulge of coronary plaques and have been introduced as a sign of adverse vascular remodelling following coronary device implantation. However, their role in atherosclerosis and plaque destabilization in the absence of coronary intervention is unknown. This study aimed to investigate CME as a novel feature of plaque vulnerability and to characterize its associated inflammatory cell-vessel-wall interactions.

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Aims: Rupture of the fibrous cap (RFC) and erosion of an intact fibrous cap (IFC) are the two predominant mechanisms causing acute coronary syndromes (ACS). It is uncertain whether clinical outcomes are different following RFC-ACS vs. IFC-ACS and whether this is affected by a specific inflammatory response.

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Background And Aims: In one-third of patients with acute coronary syndrome (ACS), thrombosis occurs despite an intact fibrous cap (IFC) (IFC-ACS, 'plaque erosion'). Recent studies emphasize neutrophils as the immediate inflammatory response in this pathology, but their exact molecular activation patterns are still poorly understood and may represent future therapeutic targets.

Methods And Results: Thirty-two patients with IFC-ACS and matched patients with ACS with ruptured fibrous cap (RFC) (RFC-ACS) from the OPTICO-ACS study were included, and blood samples were collected from the local site of the culprit lesion and the systemic circulation.

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In 2016, the U.S. Food and Drug Administration (FDA), the Centers for Disease Control and Prevention (CDC), and state partners investigated nine Listeria monocytogenes infections linked to frozen vegetables.

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In 2019, a decline in apprenticeship starts prompted the London Borough of Hounslow to make an apprenticeship pledge in its Corporate Plan 2019-2024, committing to create 4,000 new apprenticeships and training opportunities to help young people into work. This article investigates experiences of young apprentices in Hounslow before and during the COVID-19 pandemic. Exploring the perspectives of two apprentices, two employers and one training provider in a small-scale qualitative study, the authors identify key hindering and supporting factors affecting entry into and sustainability of apprenticeships, and progression towards professional employment.

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Randomized trials suggest benefits for fractional flow reserve (FFR)-guided vs. angiography-guided treatment strategies in well-defined and selected patient cohorts with acute coronary syndromes (ACS). The long-term prognostic value of FFR measurement in unselected all-comer ACS patients, however, remains unknown.

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Formation and maintenance of neuromuscular junctions (NMJs) are essential for skeletal muscle function, allowing voluntary movements and maintenance of the muscle tone, thereby preventing atrophy. Generation of NMJs depends on the interaction of motor neurons with skeletal muscle fibers, which initiates a cascade of regulatory events that is essential for patterning of acetylcholine receptor (AChR) clusters at specific sites of the sarcolemma. Here, we show that muscle-specific miRNAs of the miR-1/206/133 family are crucial regulators of a signaling cascade comprising DOK7-CRK-RAC1, which is critical for stabilization and anchoring of postsynaptic AChRs during NMJ development and maintenance.

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Background: Restrictive cardiomyopathy is rare and heterogeneous in origin, clinical manifestation, and prognosis. Familial forms have, amongst others, been associated with mutations in the TNNI3 gene. We present a case of familial restrictive cardiomyopathy associated with a novel TNNI3 mutation including longitudinal follow-up.

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Inflammation crucially drives atherosclerosis from disease initiation to the emergence of clinical complications. Targeting pivotal inflammatory pathways without compromising the host defense could compliment therapy with lipid-lowering agents, anti-hypertensive treatment, and lifestyle interventions to address the substantial residual cardiovascular risk that remains beyond classical risk factor control. Detailed understanding of the intricate immune mechanisms that propel plaque instability and disruption is indispensable for the development of novel therapeutic concepts.

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In this paper the back-side-illuminated Percival 2-Megapixel (P2M) detector is presented, along with its characterization by means of optical and X-ray photons. For the first time, the response of the system to soft X-rays (250 eV to 1 keV) is presented. The main performance parameters of the first detector are measured, assessing the capabilities in terms of noise, dynamic range and single-photon discrimination capability.

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Background: Throughout the inflammatory response that accompanies atherosclerosis, autoreactive CD4 T-helper cells accumulate in the atherosclerotic plaque. Apolipoprotein B (apoB), the core protein of low-density lipoprotein, is an autoantigen that drives the generation of pathogenic T-helper type 1 (T1) cells with proinflammatory cytokine secretion. Clinical data suggest the existence of apoB-specific CD4 T cells with an atheroprotective, regulatory T cell (T) phenotype in healthy individuals.

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Article Synopsis
  • Integrin-based therapies are important in treating inflammation but their general use is limited due to their role in host defense.
  • The novel monoclonal antibody anti-M7 effectively blocks the pro-inflammatory interaction between the integrin Mac-1 and its ligand CD40L without disrupting other critical integrin functions.
  • Unlike traditional anti-Mac-1 therapies that can worsen conditions like sepsis, anti-M7 offers a specific and protective approach to managing inflammation by selectively reducing leukocyte recruitment.
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