Scientists

Scientists

For science to make the news in a rigorous and attractive way, good sources are needed. Because access to scientific knowledge is a citizen's right.

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Reactions: some progesterone analogues increase risk of developing a type of brain tumour, study finds

A French study involving more than 100,000 women has found a link between long-term use of some progesterone hormone analogues - used for contraception or hormone replacement therapy - and an increased risk of developing meningioma, a generally benign type of brain tumour. The results are published in The BMJ. 

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Reactions: Review details impacts of climate change on global wine production

Some 90 % of coastal and lowland wine-growing regions in Spain, Italy, Greece and southern California are at risk from extreme events, such as excessive droughts and heat waves, according to a review published in Nature Reviews Earth & Environment. The article summarises the expected changes and the adaptations that wine producers will need to make.   

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Reaction to study suggesting that accumulation of 'junk proteins' could be a possible cause of ALS

In a paper published in Molecular Cell, a team of researchers led by the Spanish National Cancer Research Centre (CNIO) provides the first evidence that a possible cause of the hereditary type of ALS - familial ALS - is the accumulation in motor neurons of 'junk proteins', proteins with no function that accumulate unduly and prevent the cell from functioning properly. In addition, the research describes a new causal factor in the ageing process: nucleolar stress, which encompasses alterations in organelles called nucleoli. 

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Reactions to study predicting large drop in global fertility rate

Work by the Institute for Health Metrics and Evaluation (IHME) estimates that by 2050, more than three quarters (155 out of 204) of countries will not have fertility rates high enough to maintain their population size. The percentage will rise to 97% by the year 2100. The authors warn that national governments must plan for the threats these changes will pose to the economy, food security, health, the environment and geopolitical security. The findings are published in the journal The Lancet. 

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Reactions: e-waste generated worldwide in 2022 increased by 82% compared to 2010

In 2022, 62 million tonnes of e-waste were generated worldwide, a figure 82% higher than the 34 million tonnes recorded in 2010, according to a United Nations report. The 2022 figure represents an average of 7.8 kilograms per capita per year worldwide, compared to 19.6 kg in Spain. Only 22.3% of this amount of global e-waste was documented as properly collected and recycled, says the Global E-waste Monitor 2024. 

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Reactions: e-cigarettes may cause epigenetic changes associated with cancer even in the short term

An international team of researchers has examined the epigenetic effects of tobacco and e-cigarettes over time in more than 3,500 samples. Their results indicate that e-cigarettes can also cause changes associated with an increased risk of cancer even shortly after starting to use them. They publish the study in the journal Cancer Research. 

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Reactions: A preliminary investigation presented at a conference claims that restricting meals to an 8-hour window increases the risk of cardiovascular death by 91%

According to an unpublished study presented at a conference of the American Heart Association and not peer-reviewed, an analysis of over 20,000 American adults found that individuals who restricted their food intake to less than 8 hours a day, following a time-restricted eating plan, were more likely to die from cardiovascular diseases compared to those who ate during 12-16 hours a day.

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Reaction: no detectable brain lesions or biological abnormalities in people with Havana syndrome, according to two studies

Two investigations published in the journal JAMA conclude that there is no evidence of brain injury detectable by magnetic resonance imaging or biological abnormalities in people suffering from the so-called Havana syndrome. This syndrome has been described in overseas civil servants and their family members, who suffer from symptoms including noise, pressure and pain in the head, and cognitive dysfunction, called abnormal health incidents. Studies did find differences in symptoms of imbalance, fatigue, post-traumatic stress disorder and depression. 

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Reaction: Adolescents and children from low socioeconomic neighborhoods walk less and engage in less physical activity

A study published in the journal PLOS ONE, which includes data from over 3,000 Spanish adolescents and children, has shown that those living in more walkable areas report spending more minutes per day engaging in active transportation compared to those from less walkable neighborhoods. Along those lines, the lowest average minutes spent playing outdoors are observed among participants from neighborhoods with lower socioeconomic status and less walkability. The research is part of the PASOS study, coordinated by the Gasol Foundation.

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