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Gene that naturally protects people against Covid discovered
Publicado em 22 novembro 2022
Sao Paulo, Nov 22 (IANS) A team of Brazilian researchers has discovered that a gene can protect people, even those aged 90 and above, from the deadly Covid disease.
Two research papers found that the frequency of variants of the gene 'MUC22' was twice as high in the mild Covid-19 group as in severe patients, and higher still in resilient super-agers.
This gene belongs to the "mucin" family and is associated with the production of mucus, which lubricates and protects the [...]
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Omicron's mutations explain why it is less severe among vaccinated
Publicado em 09 fevereiro 2022Sao Paulo, Feb 9 (IANS) Brazilian researchers have found that Omicron has mutations detected in previous variants and that is the reason why it is less severe among the vaccinated. Omicron emerged as a variant of concern only in November 2021, but all the mutations it contains, except one, had been described before that. Researchers at the Federal University of Sao Paulo (UNIFESP) in Brazil attribute this factor to the effectiveness of the existing vaccines against the variant, reflected [...]ver notícia -
Alzheimer's 3X raises Covid severity, death risk: Study
Publicado em 04 junho 2021Sao Paulo, June 4 (IANS) People with dementia, particularly Alzheimer's disease are at threefold risk of dying as a result of infection by SARS-CoV-2, the virus behind Covid-19, according to a study by Brazilian researchers. The risk is six times greater if they are over 80, found the team at the University of Sao Paulo (USP) and Butantan Institute in partnership with colleagues at the Federal University of Rio de Janeiro (UFRJ). "We found that all causes of dementia are risk factors [...]ver notícia -
Prior dengue infection can double Covid-19 risk: Study
Publicado em 19 maio 2021Sao Paulo, May 19 (IANS) People who have had dengue in the past are twice as likely to develop symptoms of Covid-19 if they are infected by coronavirus, finds a new study. The study, led by University of Sao Paulo in Brazil, detected the presence of antibodies against dengue virus and SARS-CoV-2 in blood samples from 1,285 inhabitants of Mancio Lima, a small town in the state of Acre, part of Brazil's Amazon region. "Our results show that the populations most exposed to dengue, [...]ver notícia -
Saliva can predict excess body fat in teenagers
Publicado em 21 fevereiro 2020In addition to keeping the mouth moist and protecting us against germs, saliva can also be used for early detection of the risk of developing diseases associated with surplus body fat, a new study suggests. For the findings, published in the journal Nutrition Research, the researchers in Brazil performed a study in which they used the level of uric acid in saliva to predict body fat percentages in teenagers and identify those with surplus fat even if they had no symptoms of chronic [...]ver notícia -
Saliva can predict excess body fat in teenagers
Publicado em 19 fevereiro 2020Rio de Janeiro, Feb 19 | In addition to keeping the mouth moist and protecting us against germs, saliva can also be used for early detection of the risk of developing diseases associated with surplus body fat, a new study suggests. For the findings, published in the journal Nutrition Research, the researchers in Brazil performed a study in which they used the level of uric acid in saliva to predict body fat percentages in teenagers and identify those with surplus fat even if they had no [...]ver notícia -
Music may reduce cardiac stress while driving: Study
Publicado em 13 novembro 2019Rio de Janeiro, Nov 13 (IANS) Stress while driving is a risk factor for the development of cardiovascular disease and sudden cardiac complications such as heart attack, but now researchers have found that listening to music while driving can reduce cardiac stress."We found that cardiac stress in the participants in our experiment was reduced by listening to music while they were driving," said study lead author Vitor Engracia Valenti, Professor at Sao Paulo State University in [...]ver notícia -
Lipid in humans can help control blood sugar
Publicado em 29 setembro 2019Sao Paulo, Sep 29 (IANS) A team of global researchers has discovered that a lipid -- produced in response to cold by brown adipose tissue in the human body -- helps reduce blood sugar.The discovery with the lipid known as 12-HEPE can pave the way for new treatments for diabetes, said the team from Brazil, the US and Germany. The group also observed that a drug used to treat urinary dysfunction increases the amount of 12-HEPE released into the bloodstream in human patients.White adipose tissue, [...]ver notícia -
Scientists identify 4 extremely young asteroid families
Publicado em 25 setembro 2018Sao Paulo, Sep 25 (IANS) Brazilian scientists have identified four new families of extremely young asteroids, taking the total number to 13. The four families, all of which are less than seven million years old, orbit between Mars and Jupiter as part of a grouping known as the Main Asteroid Belt. The researchers dated the families using a numerical simulation method to process current data to go back in time to the asteroid formation era. "We identified the new families by means of [...]ver notícia -
Novel AI-based platform diagnoses Zika with 95% accuracy
Publicado em 13 junho 2018Sao Paulo: Brazilian scientists have developed an artificial intelligence (AI) platform that can diagnose Zika and other pathogens from patients’ blood with over 95 per cent accuracy. The method combines mass spectrometry, which can identify tens of thousands of molecules present in blood serum, including lipids, peptides, and fragments of DNA and RNA, with an AI algorithm capable of finding patterns associated with diseases of viral, bacterial, fungal and even genetic origin. A mass [...]ver notícia