Cell biology

Biology

Giant viruses released from thawing ground

Viruses come back to life after lying dormant in the icy ground for millennia

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Biology

The clock that regulates sunflowers

Circadian clock controls maturation of the hundreds of tiny flowers that form concentric circles on the heads of adult sunflowers

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Neuroscience

The brain before schizophrenia

Researchers link schizophrenia to protein production during brain maturation

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INFORMATION TECHNOLOGY

Artificial intelligence in healthcare

AI-based technologies are already being used in medicine, but there are hurdles still to overcome before they can be incorporated on a larger scale in Brazil

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Biotechnology

Cell therapy on the radar

Company changes business plan and invests in regenerative medicine in search of a cure for diseases that currently have no treatment

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GOOD PRACTICES

MIT biologist accused of sexual harassment resigns

David Sabatini studied cell signaling and cancer metabolism

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photolab

Narrow passage

Image shows how Leukocytes squeeze through tiny pores

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INFECTIOUS DISEASES

A long-sought cure may be closer

Experimental treatment able to control HIV for six months after stopping antiretrovirals

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ZOOLOGY

Hibernation delays aging in marmots and encourages sexual maturation in ground squirrels

Studies on the effects of hibernation were carried out by Brazilian researchers in the USA

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COVID-19

Cross-infection between species

Humans have transmitted SARS-CoV-2 to animals, at least two of which have passed the virus onto other people

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COVID-19

Third dose lowers risk of death

Coronavirus vaccine booster doses significantly reduce the risk of death from COVID-19

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COVID-19

Long-term damage to the surroundings

A cellular change induced by SARS-CoV-2 may explain prolonged symptoms of the disease

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Funding

Committed effort

Survey finds investment in cancer research has fallen in Brazil

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COVID-19

The uncertainties of omicron

New SARS-CoV-2 variant is highly transmissible, but for now, there is no evidence that it causes more severe disease or more deaths

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MEDICINE

Problems in cancer studies

Problems in cancer studies

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Health

Focus on the bacillus

Fast, portable, and sensitive, a new test could be a useful tool for preventing leprosy and helping with early diagnosis.

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Endocrinology

A delicate balance

Brazilians identify new areas of the brain's hunger circuit

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COVID-19

The quest for a Brazilian vaccine

Researchers are testing a range of technologies, but few initiatives will receive the funding needed for costly phase 3 clinical trials

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Photolab

Fertility clock

Genetic alterations to the biological clock could be linked to fertility disorders

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Video

The plant biological clock benefits agriculture

Understanding the plant circadian rhythms, and learning how to manipulate them, may widen cultivation options | 2'42

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Neuroscience

Defenders more at risk of dementia

Heading has been associated for some time with an increased risk of developing neurodegenerative diseases

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Interview

Sérgio Pena: Under the skin

The Minas Gerais geneticist proves that, at the cellular level, Brazilians look the same

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Cell biology

The explosive exit of Trypanosoma cruzi

Biologist used microscopes to observe and document how the parasite returns to the blood

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HEALTH

Digital diagnosis

Software capable of identifying skin cancer with greater than 90% accuracy

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Biology

Back to life after 24,000 years

Rotifers of the Bdelloidea class are multicellular invertebrate organisms so small that they are usually only seen under a microscope

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COVID-19

The importance of the cellular response against the coronavirus

Fighting a SARS-CoV-2 infection is not solely the responsibility of antibodies, the proteins that adhere to the virus’s surface to prevent it from entering cells or mark it for destruction

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COVID-19

Superior immunity

Studies of blood and tissue samples taken before the COVID-19 pandemic may help explain why the disease is more common and more severe in adults than in children

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photolab

Lethal networks

Faced with an invasion of viruses or bacteria, human immune system cells sometimes overreact in a process known as NETosis, which has been shown to be more severe when the invader is SARS-CoV-2

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INTERVIEW

Eurico Arruda: Admirer of viruses

Coronavirus specialist and USP physician speaks about the new variants of SARS-CoV-2 and the risk they represent in the efficacy of some vaccines

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Covid-19

Antibodies reduce deaths

A clinical trial led by researchers at the University of Oxford, UK, identified a second drug capable of reducing mortality among patients with severe COVID-19

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