Reactions

Reactions

Reactions

When science hits the headlines, we seek the views of expert sources who assess the news rigorously and quickly, according to the available evidence.

Reaction: Stroke could cause almost 10 million deaths a year by 2050, commission estimates

The Neurology Commission of the New World Stroke Organization and The Lancet has estimated that stroke deaths will increase from 6.6 million in 2020 to 9.7 million in 2050, with a widening gap between low- and middle-income and high-income countries. The economic analysis indicates that the treatment, rehabilitation and indirect costs of stroke would double from $891 billion in 2020 to as much as $2.3 trillion in 2050.

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Reactions: study says persistent colds may follow acute respiratory infections

Some people may experience long-term symptoms - or 'lingering colds' - after suffering acute respiratory infections that tested negative for covid-19, research concludes. The study, published in the journal EClinicalMedicine, highlights the most common symptoms of these conditions, such as cough, stomach pain and diarrhoea more than four weeks after the initial infection.

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Reactions: study identifies genes that may be associated with vegetarianism

A US research team has identified several genes that may be associated with a strict vegetarian diet. Some of these genes have "important roles in lipid metabolism and brain function", according to the paper, which suggests that these differences could explain the ability to subsist on a vegetarian diet in those who carry these genes. The study, published in the journal PLoS ONE, used data from the UK Biobank to compare a group of more than 5,000 vegetarians with a group of more than 320,000 non-vegetarians.

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Reactions: traumatic experiences can be passed on to offspring and reversed with drug in mice

Early-life adversity, such as separation from the mother, can alter the neurological functioning of mice, causing some to experience panic and anxiety later in life. A study shows that these changes can be passed on for at least two generations and that inhalation of a drug, the diuretic amiloride, can reverse them. According to the authors, this treatment could be used in the future to alleviate panic disorders and related conditions in humans. The results are published in the journal Science Advances.

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Reaction: Human settlements in flood-prone areas are increasing

A study published in Nature has analyzed the presence of human settlements in flood-prone areas and their evolution worldwide since 1985. Until 2015, there was an increase of up to 122% in these settlements in flood-prone areas. According to their data, in many regions, the growth in the most hazardous areas is far outpacing development in non-exposed areas, especially in East Asia.

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Reactions: Nobel Prize in Chemistry to Bawendi, Brus and Ekimov for discovering quantum dots

The Royal Swedish Academy of Sciences has awarded the Nobel Prize in Chemistry 2023 to Moungi G. Bawendi, Louis E. Brus, and Alexei I. Ekimov "for the discovery and synthesis of quantum dots." Quantum dots are tiny nanoparticles that diffuse their light from televisions and LED lights, and can also guide surgeons when removing tumor tissue, among many other applications.

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Reactions: Nobel Prize in Physics to Agostini, Krausz and L'Huillier for developing light pulses to study the motion of electrons in matter

The Royal Swedish Academy of Sciences has awarded the 2023 Nobel Prize in Physics to Pierre Agostini, Ferenc Krausz and Anne L'Huillier for developing "experimental methods generating attosecond light pulses". These advances made it possible to observe the motion of particles in atoms on the shortest time scale captured by humans. An attosecond is a unit of time equivalent to one trillionth of a second, roughly the time it takes light to travel the diameter of an atom.

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Reactions: Nobel Prize in Physiology awarded to Karikó and Weissman for their discoveries that led to the development of effective mRNA vaccines against covid-19

The Karolinska Institute has awarded the Nobel Prize in Medicine or Physiology to Katalin Karikó and Drew Weissman for their groundbreaking discoveries, which have radically changed our understanding of how mRNA interacts with our immune system, and made it possible to develop vaccines at unprecedented speed during the covid-19 pandemic.

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