All kinds of substances circulate through the bloodstream. Some are beneficial, like oxygen or nutrients, and others less so, like waste products, toxins, pathogens and certain trafficking cells. Among these harmful substances are deleterious factors associated with aging, which can prematurely damage different tissues. The big question is what are those factors that mediate such effects, and what can be done to prevent them. The 11th Cardiac Regeneration and Vascular Biology Conference, held on the Island of San Servolo, Venice, from June 30 to July 2, 2025, included presentations, oral sessions and posters addressing the impact of aging on the cardiovascular system.
Lizards, zebrafish, salamanders and tritons can regrow a tail, a fin, or even an entire limb after amputation. Cut a planarian into pieces, and you will end up with a bunch of them. Researchers at the National Institute of Biological Sciences in Beijing have discovered a genetic switch linked to vitamin A. After activating this pathway, they managed to regenerate the ear pinna of a mouse, an animal that previously lacked this ability.
A healthy life for a healthy heart is a popular saying. However, even when following good habits, heart health can be already compromised from the very earliest stages of development. Maternal cells reach the embryo through the placenta contributing to its normal formation. So, just as the mother helps form a functional heart, she can also induce a condition that may not appear until adulthood.
Lizards, zebrafish, salamanders and tritons can regrow a tail, a fin, or even an entire limb after amputation. Cut a planarian into pieces, and you will end up with a bunch of them.
An experimental drug for treating diabetes and obesity has been shown to lower blood sugar levels and increase fat burning. It is a β2-adrenergic receptor (β2AR) agonist that mimics the effects of physical exercise by activating skeletal muscle metabolism. Unlike GLP-1-based treatments such as semaglutide and tirzepatide, this new compound, developed by researchers at the Karolinska Institute, Stockholm University, and the biotech company Atrogi AB, does not suppress appetite or cause muscle loss.
In multiple sclerosis (MS), an alteration of neuronal metabolism caused by dysfunction of its proteasome, the cellular machinery responsible for recycling proteins, contributes to neurodegeneration in this inflammatory disease. This finding could be explored for the development of drugs that protect neurons from damage in MS and other neurodegenerative disorders.
Chinese researchers are preparing the details for the publication of another scientific milestone, the creation of a chimera with a human heart and a kidney developed from human stem cells in pig embryos.
Chinese researchers are preparing the details for the publication of another scientific milestone, the creation of a chimera with a human heart and a kidney developed from human stem cells in pig embryos. These studies aim to address the shortage of immunocompatible organ donors while shedding light on some of the most fundamental questions in developmental biology.
Is fecal microbiota transplant effective? Is it really safe? And is it really all the same? Scientists at the University of Chicago have investigated the regional differences in gut environments to question these interventions.
Is fecal microbiota transplant effective? Is it really safe? And is it really all the same? Scientists at the University of Chicago have investigated the regional differences in gut environments to question these interventions to analyze the microbiome differences and their effects after transplantation form different intestine areas. The results show how host-microbe mismatches after these interventions could affect gut health.
