IDIBAPS

A technique developed under the coordination of researchers from the Centre for Genomic Regulation (CRG) and the Institute for Biomedical Research (IRB) in Barcelona has made it possible to track methylation patterns or “barcodes” in blood cells and construct their epigenetic family tree. This has enabled them to trace their evolution and changes with age, which could be useful for disease prevention and for the study or even development of specific therapies against ageing. The results are published in the journal Nature.

Cuts in international HIV funding could cause between 4.4 million and 10.8 million new HIV infections between 2025 and 2030 in 26 low- and middle-income countries. In addition, these funding reductions could result in between 770,000 and 2.9 million HIV-related deaths, according to a study published in The Lancet HIV. Five countries that together provide more than 90% of funding for international HIV interventions - the US, UK, France, Germany and the Netherlands - have announced reductions in funding between now and 2026, the article explains. This includes the immediate suspension, in January 2025, of US funding, which accounted for nearly three-quarters of the total.

In marathon runners, the myelin content of specific regions of the brain is reversibly reduced, according to a study carried out in the Basque Country. This observation is consistent with animal evidence suggesting that myelin lipids - a substance that surrounds neurons - can act as energy reserves in extreme metabolic conditions, as detailed by the authors in Nature Metabolism. The analysis is based on magnetic resonance imaging of eight men and two women before and after running a marathon. According to the study, the myelin content was fully recovered two months after the race.

In a group of people at high cardiovascular risk, low to moderate wine consumption was associated with fewer cardiovascular events (cardiovascular death, myocardial infarction, stroke or heart failure), according to a study. The analysis uses urinary concentrations of tartaric acid, a substance found in grapes and grape derivatives, as a biomarker of wine consumption. It finds that consuming between three and 35 glasses per month was associated with fewer cardiovascular events than in people who consumed fewer than three or more than 35 glasses. The study, published in the European Heart Journal, included more than 1,200 participants from Spain's PREDIMED study with an average age of 68 years.

A phase 2 clinical trial has tested the efficacy and safety of a transcranial magnetic stimulation device used at home to treat major depression in 174 patients. After dividing them into two groups, one group received the treatment and the other a placebo procedure. After ten weeks, both groups had improved their symptoms, but the improvement in the active treatment group was 0.4 points greater on the Hamilton depression scale. According to the authors, who publish the results in the journal Nature Medicine, ‘it could potentially serve as a first-line treatment for major depression’.

The mental health of young people has deteriorated over the last two decades and is entering a dangerous phase, according to a new Commission by The Lancet Psychiatry. Several global factors are involved, including inaction on climate change, intergenerational inequality, and adversity linked to the COVID-19 pandemic. 

Five out of ten potential treatments move from animal studies to human studies; four to randomised controlled clinical trials; and one in 20 moves on to approval by regulatory agencies, an analysis estimates. Concordance between positive results in animals and in clinical studies is 86%, according to the study, published in PLoS Biology, which pools the findings of 122 published studies on 54 different human diseases.  

A Finnish study involving more than 700,000 adolescents has found some risk of transmission of some mental disorders among classmates. The results are published in the journal JAMA Psychiatry. 

The largest meta-analysis to date that studies the risk of children of people with a mental disorder also suffering from some type of mental disorder during their lifetime has been published, with Spanish participation. According to the study, the risk is more than double that of the rest of the population. To explain the study and resolve any doubts that may arise, the Science Media Centre Spain organised an information session with one of the authors, psychiatrist Joaquim Raduà.

An international team, led by the Hospital Clínic-IDIBAPS in Barcelona together with King's College London (UK) and Dalhousie University (Canada), has published the largest meta-analysis to date studying the risk of children of people with mental disorders developing the same, or another type of disorder. The study included more than three million children of parents with different types of disorders and more than 20 million people as a control population. The results, published in the journal World Psychiatry, indicate that, overall, the former have a 1.5 to 3 times higher risk of developing a disorder in their lifetime. According to the authors, in the case of bipolar, depressive or anxiety disorders, the risk of their offspring suffering from some type of disorder is more than 50%.