University of Navarra

A study by the University of Cádiz has identified six factors that drive polarization around health-related issues, for example during crises such as the COVID-19 pandemic: political ideology, misinformation, social media dynamics, trust in institutions and professionals, risk perception, and socioeconomic factors. This review, published in Science Advances, brings together the conclusions of 90 previous studies and analyzes how these determinants exacerbate health inequalities and influence compliance with public health measures.

An international team with Spanish participation has analyzed data from more than 500,000 people and found a link between digestive disorders such as colitis, gastritis, esophagitis, or functional bowel disorders and an increased risk of developing Alzheimer's and Parkinson's diseases. According to the researchers, who published their findings in the journal Science Advances, “this effort sheds light on the interaction between factors involved in the gut-brain axis and opens avenues for targeted treatment and early diagnosis.”

A diet rich in omega-3 fatty acids, found mainly in fish oils, may help prevent the development of myopia in children, while high consumption of saturated fats, found in foods such as butter, palm oil and red meat, may increase the risk of developing this condition, according to research published in the British Journal of Ophthalmology. The study was conducted on a thousand children in Hong Kong aged between six and eight.

Certain immunotherapy treatments for cancer work by releasing the brakes on our defences. However, their response varies and is not uniform in all patients. A team in the United States has now published a study in Nature according to which certain autoantibodies present in patients could improve the efficacy of the therapy, which would explain some of this variability and could be used to design future complementary treatments.

Children will suffer more from the climate crisis than their grandparents. Fifty-two per cent of people born in 2020 will experience unprecedented heat waves throughout their lives, compared to 16 per cent of those born in 1960. This was calculated by a study published in Nature last month, assuming that temperatures rise 1.5 °C above pre-industrial levels. In this article, we analyse the profile of children who already suffer from heat in our country and explain how to adapt their environments to extreme temperatures. 

Consumption of ultra-processed food is associated with an increased likelihood of having prodromal signs of Parkinson's disease - symptoms that precede the disease - says a study published in Neurology. The analysis is based on data from more than 42,000 healthcare professionals in the US, followed for up to 26 years.

Consuming certain mixtures of common food additives is linked to a slightly increased risk of developing type 2 diabetes, according to an analysis of data from more than 108,000 adults in France. The study, published in PLoS Medicine, identified five mixtures of additives frequently used in ultra-processed foods and concluded that two of them are associated with the disease: the first mixture consisted mainly of emulsifiers, preservatives and a colouring agent, and the second of acidifiers, acidity regulators, colouring agents, artificial sweeteners and emulsifiers.

In 2050 there will be 25.2 million people with Parkinson's disease worldwide, which represents an increase of 112% from 2021, largely due to the ageing of the population, according to a modelling study published by The BMJ. The number of people living with this disease – prevalence across all ages – per 100,000 inhabitants is expected to increase by 76% – and by 55% when age differences are corrected.

An international team has found that aspirin is capable of reducing the appearance of metastasis in mice, by enabling the activation of T lymphocytes capable of recognising tumour cells. The research showed that several different mouse cancer models — including breast cancer, colon cancer and melanoma — treated with aspirin showed a lower rate of metastasis in other organs, such as the lungs and liver, compared to untreated mice. According to the authors, who publish the results in the journal Nature, ‘the finding paves the way for the use of more effective anti-metastatic immunotherapies’.

A meta-analysis that included 45 studies involving more than 330,000 people has analysed the association between the time spent exposed to digital screens and the risk of developing myopia. The results of the study, published in JAMA Network Open, show that the risk of myopia increased significantly by just over 20% for every hour of daily use after the first hour.