1,032 results match your criteria: "Institute of Medical and Chemical Laboratory Diagnostics[Affiliation]"

Early depressive symptoms within the first days after acute myocardial infarction (AMI) are mainly manifested with performance parameters (lack of energy, concentration difficulties, reduction in physical functioning). Homoarginine (hArg), a non-proteinogenic amino acid, might increase the availability of nitric oxide (NO). NO controls vasodilatation, blood flow, mitochondrial respiration and improves performance.

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Background: Arterial hypertension is a significant risk factor for cardiovascular (CV) morbidity and mortality. Although central blood pressure (BP) evaluation is considered the gold standard, the reliability of non-invasive measurements remains unclear. Therefore, we compared the predictive value of invasively measured central BP with non-invasively measured brachial BP and analyzed pulse pressure (PP) amplification (delta-PP; difference between central and peripheral PP) as an independent predictor of mortality.

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Purpose: The present study was performed to investigate the association of prostate cancer radiotherapy with inflammaging, a condition characterized by the elevation of inflammatory blood parameters that significantly increases the susceptibility to the occurrence or progression of age-related conditions.

Patients And Methods: A total of 306 patients treated with curative radiotherapy (RT) for prostate cancer were enrolled into the prospective study. Aging-related inflammatory parameters including C-reactive protein (CRP), albumin, fibrinogen, cholesterol, platelet-to-lymphocyte ratio (PLR), and neutrophil-to-lymphocyte ratio (NLR) were analyzed before and at the end of RT, and 3 and 15 months after completion of the RT.

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Purpose: It has been assumed that magnesium (Mg) status may interact with vitamin D status. We therefore aimed at investigating the association between Mg and vitamin D status in a large cohort of adult individuals with a high prevalence of deficient/insufficient vitamin D and Mg status.

Methods: We used data from the Ludwigshafen Risk and Cardiovascular Health Study (n = 2,286) to analyze differences according to serum Mg status in circulating 25-hydroxyvitamin D [25(OH)D] (primary endpoint), 24,25-dihydroxyvitamin D [24,25(OH)D], vitamin D metabolite ratio and calcitriol, and odds ratios for deficient or insufficient 25(OH)D (secondary endpoints).

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Article Synopsis
  • The study aimed to assess how common metabolic dysfunction-associated steatotic liver disease (MASLD) is among adolescents in Western Austria and its relationship with arterial stiffness, which indicates early vascular ageing.
  • Researchers examined liver fat content in 1,292 Austrian adolescents using advanced ultrasound technology and measured arterial stiffness through a specific pulse wave measurement, alongside assessing various cardiovascular risk factors.
  • While MASLD was identified in 4.8% of the participants, the results indicated that liver fat and MASLD were not strong independent predictors of early vascular ageing; however, knowing liver fat levels can help identify adolescents at risk for cardiovascular issues.
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  • The study examined how serum levels of minerals and phosphate relate to overall and cardiovascular death rates, especially in patients with varying kidney functions.
  • Low levels of sodium and iron were linked to worse kidney performance and higher death risks, while higher zinc levels correlated with lower risks.
  • Those with kidney functions below 60 mL/min faced a fourfold increase in mortality risk, emphasizing the need for regular monitoring of serum minerals and kidney health in cardiovascular patients.
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  • Factor V (FV) is crucial for the blood coagulation process, and its plasma levels are linked to various health issues like blood clots and diabetes.
  • The researchers used a specific statistical method called the Brown-Forsythe methodology to analyze genetic factors affecting FV levels in 4505 individuals from four different studies.
  • They identified a significant genetic variant (rs75463553) associated with the variability in FV plasma levels, highlighting the interaction between neutrophil-related genes and FV biology.
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  • ANGPTL3/4/8 proteins regulate lipoprotein lipase (LPL) activity, with ANGPTL8 forming complexes that influence ANGPTL4's function; however, their association with cardiovascular outcomes is under-researched.
  • This study involved measuring various ANGPTL proteins and complexes in two large population studies (LURIC and getABI) focusing on cardiovascular health and outcomes over several years.
  • Findings showed that while ANGPTL3/8 inhibited LPL activity and correlated with increased LDL-C and triglycerides, they did not predict cardiovascular death; however, ANGPTL4/8 and CD-ANGPTL4 were linked to higher diabetes prevalence and increased cardiovascular mortality risk.
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Inhibition of ATGL alleviates MASH via impaired PPARα signalling that favours hydrophilic bile acid composition in mice.

J Hepatol

September 2024

Hans Popper Laboratory of Molecular Hepatology, Division of Gastroenterology and Hepatology, Medical University of Vienna, Vienna, Austria. Electronic address:

Article Synopsis
  • This study examined the effects of inhibiting adipose triglyceride lipase (ATGL) on the progression of metabolic dysfunction-associated steatohepatitis (MASH) and related liver fibrosis in mice on a high-fat diet.
  • Mice treated with the ATGL inhibitor Atglistatin showed improvements in liver health, including lower liver enzymes and reduced lipid accumulation, revealing changes in gene expressions linked to liver and bile acid metabolism.
  • The findings suggest that ATGL inhibition disrupts PPARα signaling pathways and alters bile acid synthesis, which may provide a therapeutic target for treating liver diseases associated with metabolic dysfunction.
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The strong associations between the serum levels of adiponectin and the lipoprotein subclasses observed in healthy subjects are much weaker in patients with metabolic syndrome (MS). However, the impact of sex on these associations remained unexplored. Therefore, in the present study, we examined associations between adiponectin and the lipoprotein subclasses, analyzed by nuclear magnetic resonance spectroscopy, separately in healthy females and males, as well as in females and males with MS.

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Predicting early-stage coronary artery disease using machine learning and routine clinical biomarkers improved by augmented virtual data.

Eur Heart J Digit Health

September 2024

Unit of Medical Technology and Intelligent Information Systems, Department of Materials Science and Engineering, University of Ioannina, Ioannina, Greece.

Aims: Coronary artery disease (CAD) is a highly prevalent disease with modifiable risk factors. In patients with suspected obstructive CAD, evaluating the pre-test probability model is crucial for diagnosis, although its accuracy remains controversial. Machine learning (ML) predictive models can help clinicians detect CAD early and improve outcomes.

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Vitamin D assay and supplementation: still debatable issues.

Diagnosis (Berl)

September 2024

Renal Division, Department of Health Sciences, University of Milan, Milan, Italy.

Over the last decades, in addition to the improvement of pathophysiological knowledge regarding the role and mechanisms of action of vitamin D, there has been a progressive advancement in analytical technologies for its measurement, as well as in methodological standardization. A significant number of scientific works, meta-analyses, and guidelines have been published on the importance of vitamin D and the need for supplementation in deficient individuals. However, it appears necessary to clarify the fundamental elements related to the measurement of vitamin D (both at the strictly analytical and post-analytical levels) and the scientific evidence related to the efficacy/safety of supplementation.

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Article Synopsis
  • Sedentary behavior (SB) is linked to health issues like obesity and diabetes, and while physical activity (PA) might help, its effects on inflammation and cardiometabolic responses remain unclear.
  • A study involving 17 young adults assessed how light-intensity PA snacks (like standing or walking) compared to prolonged sitting affected health markers during an 8-hour work simulation.
  • Results showed that light-intensity activities led to significant positive changes in various inflammatory and cardiometabolic markers, indicating potential health benefits over uninterrupted sitting.
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Blood coagulation in Prediabetes clusters-impact on all-cause mortality in individuals undergoing coronary angiography.

Cardiovasc Diabetol

August 2024

Institute for Clinical Chemistry and Pathobiochemistry, Department for Diagnostic Laboratory Medicine, University Hospital Tübingen, Tübingen, Germany.

Background: Metabolic clusters can stratify subgroups of individuals at risk for type 2 diabetes mellitus and related complications. Since obesity and insulin resistance are closely linked to alterations in hemostasis, we investigated the association between plasmatic coagulation and metabolic clusters including the impact on survival.

Methods: Utilizing data from the Ludwigshafen Risk and Cardiovascular Health (LURIC) study, we assigned 917 participants without diabetes to prediabetes clusters, using oGTT-derived glucose and insulin, high-density lipoprotein cholesterol, triglycerides, and anthropometric data.

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Article Synopsis
  • The study investigates the link between high-sensitivity cardiac troponin T (hs-cTnT) levels and cardiovascular disease (CVD) risk in patients who have experienced acute ischemic stroke or transient ischemic attack.
  • Out of 1,687 patients analyzed, 80.7% had detectable hs-cTnT, showing a clear correlation: for every 1-SD increase in hs-cTnT, the risk of CVD events increased significantly.
  • Findings indicate that higher hs-cTnT levels are associated with increased risks for specific outcomes like stroke, CVD death, and overall mortality, underscoring its potential as a marker for CVD risk in this patient population.
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Background: A common functional variant (c.-1306A C, rs1617640) in the gene encoding erythropoietin () has been linked to expression of erythropoietin and markers of erythropoiesis. Aim of the current study was the analysis of the role of this polymorphism for long term survival of patients with peripheral arterial disease (PAD).

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Background: Galactomannan (GM) testing using Platelia Aspergillus enzyme immunoassay (Platelia AGM) from bronchoalveolar lavage fluid (BALF) aids in early diagnosis of invasive pulmonary aspergillosis (IPA). Globally, only a minority of laboratories have the capability to perform on-site GM testing, necessitating accessible and affordable alternatives. Hence, we conducted a comparative evaluation of the new clarus Aspergillus GM enzyme immunoassay prototype (clarus AGM prototype) with Platelia AGM using BALF samples.

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Background: Chronic kidney disease represents one of the strongest risk factors for cardiovascular diseases, and particularly for heart failure. Despite improved pharmaceutical treatments, mortality remains high. Recently, experimental studies demonstrated that mosaic loss of Y chromosome (LOY) associates with cardiac fibrosis in male mice.

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Aims: Inflammation accompanies heart failure (HF) and elevated levels of inflammatory biomarkers are linked to new onset of HF. However, whether the prognostic relevance of inflammatory biomarkers is different in HF with reduced (HFrEF) and preserved ejection fraction (HFpEF) is unclear. The aim of the current study is to explore the role of inflammation on the mortality risk in patients with HF.

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Objectives: Fecal calprotectin (FC) serves as a non-invasive marker for the assessment of gut inflammation in patients with inflammatory bowel disease (IBD). Laboratory measurements are usually performed with immunologic methods like enzyme-linked immunosorbent assay. Recently, quantitative home tests based on the lateral flow technology with smartphones as read-out devices have been developed.

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Clinical characterization and mutation spectrum of patients with hypertriglyceridemia in a German outpatient clinic.

J Lipid Res

July 2024

Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Endocrinology and Metabolic Diseases (including Division of Lipid Metabolism), Augustenburger Platz 1, 13353 Berlin, Germany.

Background: Severe hypertriglyceridemia (HTG) has predominantly multifactorial causes (MCS). Yet a small subset of patients have the monogenetic form (FCS). It remains a challenge to distinguish patients clinically, since decompensated MCS might mimic FCS´s severity.

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Background: Primary prevention is the cornerstone of cardiometabolic health. In the randomized, controlled Special Turku Coronary Risk Factor Intervention Project (STRIP), dietary counseling intervention was given to children from infancy to 20 years of age and a follow-up was completed at age 26 years. We investigated the associations of age, sex, gut microbiome, and dietary intervention with the gut metabolite and the cardiac biomarker trimethylamine-N-oxide (TMAO).

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Objectives: The role of vitamin D deficiency in cardiovascular disease (CVD) is controversial. Inherent biological and analytical limitations compromise the specificity of widely used 25-hydroxyvitamin D [25(OH)D] cut-offs. Simultaneous determination of 25(OH)D and 24,25-dihydroxyvitamin D [24,25(OH)D] permits a functional assessment of vitamin D metabolism.

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Background: Serum galactomannan (GM) testing is essential for diagnosing invasive aspergillosis (IA), particularly in immunocompromised individuals. The global lack of on-site GM testing capacities necessitates cost-effective alternatives, such as .the clarus Aspergillus GM enzyme immunoassay prototype (clarus AGM prototype).

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Article Synopsis
  • Giant cell arteritis (GCA) is treated primarily with glucocorticoids, but their long-term use can lead to adverse effects, which this study aimed to evaluate.
  • A study of 138 GCA patients found that common adverse effects included chronic kidney disease progression, bone fractures, and dementia, with relapses in GCA linked to new cases of diabetes mellitus.
  • The research concluded that while GCA relapses may increase diabetes risk through higher glucocorticoid doses, inflammatory and endothelial dysfunction parameters are not reliable predictors for glucocorticoid side effects.
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