Material to Repair Cardiac Tissue Damaged by Heart Attacks Passes First Clinical Trial

Ventrix, a spin-off company of the University of California San Diego, has developed a special hydrogel that can be injected into the heart to provide a platform for cardiac repair following a heart attack. The technology was just tested in humans fo...
Source: Medgadget - Category: Medical Devices Authors: Tags: Cardiac Surgery Cardiology Materials Source Type: blogs

Related Links:

Authors: Halade GV, Tourki B Abstract After myocardial infarction, splenic leukocytes direct biosynthesis of specialized pro-resolving mediators (SPMs) that are essential for the resolution of inflammation and tissue repair. In a laboratory environment, after coronary ligation of healthy risk free rodents (young adult mice) leukocytes biosynthesize SPMs with induced activity of lipoxygenases and cyclooxygenases, which facilitate cardiac repair. Activated monocytes/macrophages drive the biosynthesis of SPMs following experimental myocardial infarction in mice during the acute heart failure. In the presented review, ...
Source: Advances in Experimental Medicine and Biology - Category: Research Tags: Adv Exp Med Biol Source Type: research
In this study, researchers studied 438,952 participants in the UK Biobank, who had a total of 24,980 major coronary events - defined as the first occurrence of non-fatal heart attack, ischaemic stroke, or death due to coronary heart disease. They used an approach called Mendelian randomisation, which uses naturally occurring genetic differences to randomly divide the participants into groups, mimicking the effects of running a clinical trial. People with genes associated with lower blood pressure, lower LDL cholesterol, and a combination of both were put into different groups, and compared against those without thes...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
We examined human lung tissue from COPD patients and normal control subjects, and found a substantial increase in p16-expressing alveolar cells in COPD patients. Using a transgenic mouse deficient for p16, we demonstrated that lungs of mice lacking p16 were structurally and functionally resistant to CS-induced emphysema due to activation of IGF1/Akt regenerative and protective signaling. Fat Tissue Surrounds Skeletal Muscle to Accelerate Atrophy in Aging and Obesity https://www.fightaging.org/archives/2019/09/fat-tissue-surrounds-skeletal-muscle-to-accelerate-atrophy-in-aging-and-obesity/ Researchers her...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In conclusion, in the absence of obesity, visceral adipose tissue possesses a pronounced anti-inflammatory phenotype during aging which is further enhanced by exercise. Methods of Inducing Cellular Damage are Rarely Relevant to Aging, and the Details Matter https://www.fightaging.org/archives/2019/08/methods-of-inducing-cellular-damage-are-rarely-relevant-to-aging-and-the-details-matter/ One of the major challenges in aging research is determining whether or not models of cellular or organismal damage and its consequences are in any way relevant to the natural processes of aging. One can hit a brick with...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
In the past decades, myocardial infarction periacute mortality markedly declined since coronary reperfusion therapy has been adopted. Despite immediate benefits of coronary blood flow restoration, the percentage of new onset heart failure has increased over time suggesting that ischemia can run detrimental consequences beyond the immediate anoxic hit. By accepting to aggregate all types of heart failure regardless of underlying cause, the current practice did not help to shed light on the complex postischemic cardiac biology indicating that heart failure is somewhat unavoidable. In the ischemic sequel, the activated mechan...
Source: Journal of Cardiovascular Medicine - Category: Cardiology Tags: Reviews Source Type: research
CONCLUSIONS: These findings establish HS-editing Sulfs as critical inducers of postinfarction angiogenesis and identify HS sulfation as a therapeutic target for ischemic tissue repair. PMID: 31434553 [PubMed - as supplied by publisher]
Source: Circulation Research - Category: Cardiology Authors: Tags: Circ Res Source Type: research
This study investigated the impact of oral treatment with Ang-(1-7) included in hydroxypropyl β-cyclodextrin (HPβCD/Ang-(1-7)) on the cardiac proteome dysregulation due to experimental myocardial infarction. Wistar male rats were submitted to experimental myocardial infarction and treated daily with HPβCD/Ang-(1-7) during 7 days or 60 days by gavage. Our results showed that HPβCD/Ang-(1-7) treatment ameliorates the post-infarction condition due to the modulation of proteins that initially favor the resolution of inflammation and mitochondrial dysfunction. Moreover, this study reported for the first ...
Source: Journal of Proteomics - Category: Biochemistry Authors: Tags: J Proteomics Source Type: research
Abstract Ischemic heart disease is one of the leading causes of mortality. Myocardial infarction causes loss of cardiomyocytes in the injury area accompanied by formation of a fibrotic scar. This initiates a cascade of events including further loss of myocyte, increased fibrosis, and pathological cardiac hypertrophy, eventually leading to the heart failure. Cardiomyocytes in mammals have limited regenerative potential due to post mitotic nature of cardiomyocytes. Recently, multiple studies have provided substantial insights in to the molecular pathways governing this block in adult cardiomyocyte proliferation, and...
Source: Current Opinion in Cell Biology - Category: Cytology Authors: Tags: Curr Opin Cell Biol Source Type: research
Abstract Immune activation post-myocardial infarction is an orchestrated sequence of cellular responses to effect tissue repair and healing. However, excessive and dysregulated inflammation can result in left ventricular remodeling and pathological alterations in the structural and mechanical attributes of the heart. Identification of key pathways and critical cellular mediators of inflammation is thus essential to design immunomodulatory therapies for myocardial infarction and ischemic heart failure. Despite this, the experimental approaches to isolate mononuclear cells from the heart are diverse, and detailed pr...
Source: American Journal of Physiology. Heart and Circulatory Physiology - Category: Physiology Authors: Tags: Am J Physiol Heart Circ Physiol Source Type: research
This study sought to investigate what could be learned from how these men have fared. The men were born in 1925-1928 and similar health-related data from questionnaires, physical examination, and blood samples are available for all surveys. Survival curves over various variable strata were applied to evaluate the impact of individual risk factors and combinations of risk factors on all-cause deaths. At the end of 2018, 118 (16.0%) of the men had reached 90 years of age. Smoking in 1974 was the strongest single risk factor associated with survival, with observed percentages of men reaching 90 years being 26.3, 25.7, ...
Source: Fight Aging! - Category: Research Authors: Tags: Newsletters Source Type: blogs
More News: Cardiology | Clinical Trials | Gastroschisis Repair | Heart | Heart Attack | Heart Failure | Medical Devices | Science | Study