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Altered Carnitine Homeostasis in Children With Increased Pulmonary Blood Flow Due to Ventricular Septal Defects

The objective of this study was to test the hypothesis that children with increased pulmonary blood flow will have evidence of altered carnitine homeostasis, mitochondrial dysfunction, decreased nitric oxide levels, and increased reactive oxygen species generation. Design: A prospective single-center cohort study. Setting: A tertiary care cardiac ICU/PICU. Patients: Arterial blood samples from 18 patients with congenital heart disease associated with increased pulmonary blood flow (ventricular septal defect), 20 with congenital heart disease without increased pulmonary blood flow (tetralogy of Fallot), and 10 without heart disease (controls) were obtained. Interventions: Plasma levels of total carnitine, free carnitine, acylcarnitine, and lactate-to-pyruvate ratios, an indicator of mitochondrial function, were determined and compared. In addition, levels of superoxide and hydrogen peroxide were determined and compared in patients with ventricular septal defect and controls. Statistical analysis was performed using an unpaired t test and analysis of variance. Measurements and Main Results: Baseline acylcarnitine levels (25.7 ± 13 vs 12.7 ± 8.3; p
Source: Pediatric Critical Care Medicine - Category: Pediatrics Tags: Cardiac Intensive Care Source Type: research

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In conclusion, the connection between DNA damage and aging is emphasized by the secretion of senescence-associated proteins during cellular senescence, a phenotype which is activated by DNA damage and is common for both human and mice. Though much progress has been achieved, full understanding of these mechanisms has still a long way to go. XPO1 as a Novel Target for Therapies to Enhance Autophagy https://www.fightaging.org/archives/2018/05/xpo1-as-a-novel-target-for-therapies-to-enhance-autophagy/ Autophagy is the name given to a collection of cellular housekeeping processes that recycle damaged and un...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
Authors: Rafiq K Abstract Cardiovascular disease (CVD) is a class of diseases that involve disorders of heart and blood vessels, including: hypertension, coronary heart disease, cerebrovascular disease, peripheral vascular disease, which finally lead to heart failure (HF). There are several treatments available all over the world, but still CVD and heart failure became the number one problem causing death every year worldwide. Both experimental and clinical studies have shown a role for inflammation in the pathogenesis of heart failure. This seems related to an imbalance between pro-inflammatory and anti-inflammato...
Source: Cardiovascular and Hematological Disorders Drug Targets - Category: Drugs & Pharmacology Tags: Cardiovasc Hematol Disord Drug Targets Source Type: research
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Source: Forbes.com Healthcare News - Category: Pharmaceuticals Authors: Source Type: news
Publication date: Available online 19 May 2018 Source:Biochimica et Biophysica Acta (BBA) - Biomembranes Author(s): Farhan Younas, Nafiseh Soltanmohammadi, Oliver Knapp, Roland Benz Legionella pneumophila is an aerobic and nonspore-forming pathogenic Gram-negative bacterium of the genus Legionella. It is the causative agent of Legionnaires' disease, also known as Legionellosis. The hosts of this organism are diverse, ranging from simple water borne protozoans such as amoebae to more complex hosts such as macrophages in humans. Genome analyses have shown the presence of genes coding for eukaryotic like proteins in several ...
Source: Biochimica et Biophysica Acta (BBA) Biomembranes - Category: Biochemistry Source Type: research
Conclusion AF is common in RHD patients and is significantly associated with heart failure and systemic thromboembolism. Age, mitral stenosis severity, tricuspid regurgitation and LA size were independently associated with AF.
Source: Indian Heart Journal - Category: Cardiology Source Type: research
Authors: Kubiak GM, Tomasik AR, Bartus K, Olszanecki R, Ceranowicz P Abstract Adenosine triphosphate (ATP) is an essential substrate metabolite in human beings. Mitochondrial oxidative phosphorylation provides> 95% of ATP with the remainder derived from glycolysis or tricarboxylic acid cycle (TCA). In normal hearts, acetyl-CoA is synthesized from the β-oxidation of free fatty acids (FFA) and the oxidation of pyruvate. Pyruvate is synthesized from glycolysis and can be submitted either for decarboxylation to acetyl-CoA or for dehydrogenation to lactate. Moreover, pyruvate, as well as lactate, plays a key rol...
Source: Journal of Physiology and Pharmacology - Category: Drugs & Pharmacology Tags: J Physiol Pharmacol Source Type: research
In this study, we performed a mutational screening in an Apulian cohort of LHON patients and we found that 41 out of 54 subjects harbored the m.11778G>A mutation, and 13 harbored the m.3460G>A mutation. Whole mtDNA sequencing was performed in three affected subjects belonging to three unrelated m.11778G>A pedigrees to evaluate the putative synergistic role of additional mtDNA mutations in determining the phenotype. Our study suggests to include haplogroup T as a possible genetic background influencing LHON penetrance and to consider the increase of mtDNA copy number as a protective factor from vision loss regardle...
Source: Acta Myologica - Category: Neurology Tags: Acta Myol Source Type: research
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Source: Oncotarget - Category: Cancer & Oncology Tags: Oncotarget Source Type: research
Authors: González-Quevedo A, Santiesteban-Freixas R, Eells JT, Lima L, Sadun AA Abstract From 1991 to 1993, an epidemic of optic and peripheral neuropathy-the largest of the century-broke out in Cuba, affecting more than 50,000 people. Initially the main clinical features were decreased visual acuity, central and cecocentral scotomas, impaired color vision and absence of the papillomacular bundle. Later, peripheral and mixed optic-peripheral forms began to appear. Due to the magnitude of the epidemic, the Cuban government requested help from the international community at the 46th World Health Assembly in 19...
Source: MEDICC Review - Category: International Medicine & Public Health Tags: MEDICC Rev Source Type: research
Authors: Abinader EG Abstract BACKGROUND: Cardiac patients of all ages were managed in the past by internists who specialized in cardiology. During the past 50 years, the medical field has witnessed great strides in the management of congenital heart disease, and thus pediatric cardiology has become a subspecialty in many countries. This review article focuses on the advances in fetal cardiac interventions (FCI) since its inception by our group in 1975. Three major modes of FCI have evolved during the past 42 years: pharmacologic, closed FCI, and open FCI. All treatments require a careful approach by the heart team...
Source: The Israel Medical Association Journal - Category: General Medicine Tags: Isr Med Assoc J Source Type: research
More News: Cardiology | Children | Heart | Heart Disease | Hole in the Heart | Intensive Care | Mitochondrial Disease | Pediatrics | Statistics | Study | Ventricular Septal Defect