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A study of 89 patients has shown that the drug teriflunomide is able to delay the onset of multiple sclerosis symptoms in people whose MRI scans show early signs of the disease, even if they have not yet developed symptoms. The work has not yet been published in a scientific journal and its results have been shared at a meeting of the American Neurological Association.
A study led by Spanish researchers and published in Science Advances has tested a new technique to improve gene therapy treatments for Parkinson's disease. Using ultrasound, they have managed to open the blood-brain barrier in specific areas, allowing the viruses used in the therapy to pass through and better reach the desired brain areas. After testing it on monkeys and three patients -patients were not given gene therapy, but the efficacy of the technique was tested using a radiotracer that does not normally cross the blood-brain barrier-, their conclusions are that the technique is safe and feasible and "could allow early and frequent interventions to treat neurodegenerative diseases".
A study published in the journal Science Translational Medicine shows the results of a phase 1 trial of a new broad-spectrum influenza vaccine. Prepared in the form of nanoparticles containing the H1 hemagglutinin stem-a region that is often conserved in different subtypes of the virus-the vaccine was generally well tolerated by participants, who showed only mild side effects such as tenderness and headaches. The prototype generated an antibody response to group 1 influenza viruses in all age groups.
A research team including scientists from the University of Santiago de Compostela and the Centro Tecnológico Agroalimentario de Lugo has analysed the presence of potentially pathogenic bacteria in 100 meat samples bought in supermarkets in Oviedo, Spain in 2020. The researchers found E. coli bacteria which produce enzymes that make the bacteria resistant to various types of antibiotics in more than half of the turkey (68 %) and chicken (56 %) samples, and less frequently in beef (16 %) and pork (12 %) samples. They also found E. coli bacteria that can cause urinary tract infections. The team presented these results at the European Congress of Clinical Microbiology and Infectious Diseases (ECCMID), which is being held in Copenhagen, Denmark, until 18 April.
A sportswoman named Beatriz Flamini has today emerged from a cave in the province of Granada, Spain, where she voluntarily isolated herself 70 metres deep for 500 days, without any contact with the outside world. This is a self-improvement project that was followed by a documentary production team. The initiative involves researchers in experimental psychology and behavioural physiology from the University of Granada, in clinical neuropsychology from the University of Almería, as well as from Kronohealth, a spin-off company of the University of Murcia's Chronobiology laboratory.
A Lancet Commission study in 2020 estimated that hearing loss is associated with 8% of dementia cases worldwide. Now, a paper has analysed data from more than 400,000 people collected at the UK Biobank. Their findings show that the risk of developing dementia is 42% higher in people with hearing problems, but this increased risk disappears in those who use hearing aids. According to the authors, whose work is published in The Lancet Public Health, the data "highlight the urgent need to introduce hearing aids early when someone starts to experience hearing problems".
Two decades of research has found no differences in psychological well-being and the quality of family relationships between children born through assisted reproduction with third-party intervention (gamete donation or surrogacy) and those born naturally. The results, published in Developmental Psychology, suggest that it is better to talk to them early, at preschool age, about their biological origins.
Between 10-15% of childhood brain tumours are diffuse midline gliomas, a type of tumour that occurs within the brainstem, making it almost impossible to remove surgically. Research published in Science Translational Medicine has used a type of molecule (antisense-ASO oligonucleotides) in mouse models of this tumour to slow tumour growth and prolong survival. The authors hope that the research will reach clinical trials and, in that case, the potential new treatment would be combined with others such as radiotherapy or immunotherapy with CAR-T cells.
Seven studies published in Nature and Nature Medicine look at how lung cancer evolves, with genomic studies of more than 1,600 tumour samples taken from 421 patients in the TRACERx project. The research includes the most common type of lung cancer (NSCLC) and assesses why tumours sometimes recur, spread to other parts of the body or the effects of platinum-based chemotherapy.
Research published in the journal Frontiers in Public Health has measured the relationship between restrictions in different settings - such as leisure and catering - taken in Spain between September 2020 and May 2021, with covid-19 transmission. The authors conclude that, overall, increased restrictions decreased disease transmission.