Journalists

A study conducted by the Barcelona Institute for Global Health (ISGlobal), in collaboration with the Barcelona Supercomputing Center (BSC-CNS), has analyzed short-term mortality associated with the combined effects of multiple air pollutants in 31 European countries. According to their estimates, this exposure is associated with 146,500 premature deaths per year and affects people differently depending on age, sex, and cause of death: young men are more vulnerable than young women, but the pattern reverses with age. The authors, who published the study in Nature Health, propose creating a new generation of impact-based early warning systems specifically targeting vulnerable groups.

In the treatment of obesity, maintaining weight loss is the most difficult phase. Two independent clinical trials published in Nature Medicine have adopted two different strategies to achieve this. The first is a phase 3b trial involving the GLP-1 drug orforglipron, administered orally on a daily basis for 52 weeks. This trial included 376 adults in the United States who had already completed 72 weeks of injectable treatment with tirzepatide or semaglutide. Almost 75% and 80% respectively of patients on each injectable drug maintained their weight loss. The second trial involved 90 obese adults from the Netherlands who followed a low-calorie diet for eight weeks and then received a daily supplement of the bacterium Akkermansia muciniphila for 24 weeks, alongside a healthy diet. Although those who received the supplement regained more than 13% of the weight initially lost, those who took the placebo regained almost 33%.

Why do eclipses occur? Is the Earth’s shadow responsible for the phases of the Moon? Is the Moon full during a solar eclipse? These are by no means obvious questions, yet they are extremely useful in teaching astronomy for identifying the obstacles we encounter when thinking about celestial mechanics, regardless of age or educational background. Here are several suggestions for untangling the most common misconceptions and understanding the cosmic dance of the stars as seen from Earth.

Amid an unprecedented international security and coordination operation, the MV Hondius has arrived at the port of Granadilla, in Tenerife, where epidemiologists and members of the Foreign Health Service will examine the passengers and crew, who have not shown any symptoms of hantavirus so far. Once assessed, they will leave the ship, which is moored in a dock, in small boats to the port, grouped by nationality – they come from 23 different countries. From there, they will board military vehicles to reach Tenerife South Airport, from where they will be repatriated on various flights. The 14 Spaniards and a member of the WHO from Africa are bound for Gómez Ulla Hospital (Madrid) to undergo quarantine. Once the process is complete, the cruise ship will refuel and sail to the Netherlands with part of the crew on board and the body of one of the three fatalities.

European regions with the greatest economic inequalities face a higher risk of mortality from both cold and heat, while wealthier regions face a higher risk during heat waves and a lower risk from cold. These findings come from a study led by the Barcelona Institute for Global Health (ISGlobal) and published in Nature Health. According to the authors, the greater vulnerability to heat in regions with higher GDP could be due to a greater presence of heat islands and urbanization in those areas, while the lower risk from cold could be explained by better-insulated homes and lower energy poverty. The results are based on an analysis of a mortality database covering the years 2000 to 2019 and including the urban and rural populations of 32 European countries.

More than 60,000 ships cross the Strait of Gibraltar each year, making it one of the busiest shipping lanes on the planet and generating noise pollution that can affect communication between animals. An international team, including Spanish researchers, has studied more than a thousand calls between 18 long-finned pilot whales, an endangered cetacean, and observed that these animals increase the volume of their calls as ambient noise increases, comparable to "that of a noisy restaurant or being next to a vacuum cleaner," as noted in a press release. However, this attempt at compensation is not always enough, which could hinder the reunion of members of the same group. The results are published in Journal of Experimental Biology. 

Single and repeated intravenous ketamine infusions are effective in reducing suicidal and depressive symptoms in patients with an acute episode of major depression. These are the main conclusions of a systematic review and meta-analysis published today in the journal JAMA Psychiatry, which also notes that long-term outcomes are not well established.

The Ministry of Health has announced that Spain will receive the MV Hondius in the Canary Islands “in accordance with international law and the spirit of humanitarianism”. The government is thus responding to a request from the World Health Organisation (WHO) and the European Union for the cruise ship, which is travelling from Argentina and has an outbreak of hantavirus on board, to dock in the Canary Islands, in the port of Granadilla, Tenerife. The European Centre for Disease Prevention and Control has assessed which passengers should be evacuated from the ship to Cape Verde, where it is currently located, and which will continue on to the Canary Islands. Once there, they will be examined and transferred to their home countries in accordance with safety protocols. The cruise ship is expected to arrive in the archipelago in three or four days.

The hallucinogen psilocybin, found in certain mushrooms, is being investigated as a treatment for conditions such as depression. A study published in Nature Communications shows that a single 25 mg dose of the compound can produce brain changes lasting up to a month after administration. These were measured using neuroimaging techniques in 28 healthy adults who had never taken psychedelics. In terms of psychological effects, participants showed increased cognitive flexibility, psychological insight, and well-being after one month.

The Ministry of Health has announced on social media that, depending on the epidemiological data gathered from the ship regarding a possible hantavirus outbreak during its stopover in Cape Verde, “a decision will be made as to which port of call is most appropriate”. Various reports suggest that the World Health Organisation (WHO) would have preferred the cruise ship to stop in the Canary Islands. “Until then, the Ministry of Health will not take any decision, as we have made clear to the World Health Organisation,” it stated. Furthermore, the Ministry of Health has indicated that, following a meeting with the WHO, a team of epidemiologists will inspect the vessel this afternoon to assess the condition of those on board, determine whether there are any further cases with symptoms, and identify high-risk and low-risk contacts. “This will aid decisions regarding repatriation procedures and the ship’s route.”