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Measuring the level of homocysteine, an amino acid, in the blood can help predict a person's risk of developing obstructive sleep apnea, a disorder characterized by recurrent interruptions in breathing due to relaxation of the throat muscles during sleep. This simple blood test can also help clinicians gauge whether a patient with the mild or moderate form of the disorder is likely to develop the severe form, according to a study conducted in Brazil by researchers at the Sleep Institute and [...]

Researchers at the Optics and Photonics Research Center (CePOF) in Brazil and collaborators at the University of Toronto and Princess Margaret Cancer Center in Canada have reported for the first time the effective use of a specific type of phototherapy to eradicate ocular melanoma in mice. Based on a pulsed laser, the technique involves the application of a large amount of light in a short period of time to activate a drug. CePOF is a Research, Innovation and Dissemination Center (RIDC) [...]

Researchers at the University of São Paulo (USP) in Brazil have shown for the first time that SARS-CoV-2, the virus that causes COVID-19, can remain in the sperm of patients for up to 90 days after hospital discharge and up to 110 days after the initial infection, reducing semen quality. The study is reported in an article published in the journal Andrology. The authors suggest that people who plan to have children should observe a period of “quarantine” after [...]

Aerobic training is known to regulate blood pressure more effectively when practiced in the evening than in the morning. Researchers who conducted a study of elderly patients at the University of São Paulo’s School of Physical Education and Sports (EEFE-USP) in Brazil concluded that evening exercise is better for blood pressure regulation thanks to improved cardiovascular control by the autonomic nervous system via a mechanism known as baroreflex sensitivity. An article on the [...]

In a study published in the Journal of Physiology, Researchers from the University of São Paulo's School of Physical Education and Sports in Brazil concluded that evening exercise is better for blood pressure regulation owing to improved cardiovascular control by the autonomic nervous system via a mechanism known as baroreflex sensitivity. Baroreflex sensitivity modulates each heartbeat interval and regulates autonomic activity throughout the body. It involves sensitive fibres and [...]

Auricular acupuncture, recommended by the World Health Organization (WHO) and offered as an integrative practice since 2006 by the SUS (Sistema Única de Saúde), Brazil's national health service, is safe for patients with depression and effectively reduces symptoms of this mental health disorder, according to a study conducted by researchers at the University of São Paulo (USP) and the University of Southern Santa Catarina (UNISUL). The results of the study are [...]

In a breakthrough development, the Butantan-Dengue Vaccine (Butantan-DV), an investigational single-dose, live, attenuated, tetravalent vaccine against dengue disease, has demonstrated significant efficacy in an ongoing phase 3 trial in Brazil. The study aims to provide crucial insights into the overall efficacy and safety of Butantan-DV, addressing a critical need for effective dengue prevention strategies. This study was published in The New England Journal Of Medicine by Esper G. and [...]

A biodegradable sponge made of chitosan, a biopolymer derived from the shells of crustaceans, releases medication slowly into the organism and makes treatment of candidiasis more comfortable and effective, judging from the results of tests performed by researchers at the University of Porto in Portugal and the Federal University of São Paulo (UNIFESP) in Brazil. An article describing them is published in the International Journal of Pharmaceutics. Vulvovaginal candidiasis is one of [...]

A large numbers of people display behavior, thoughts or feelings about food and the body referred to by specialists as ''dysfunctional dietary behavior'' or ''disordered eating attitudes'', a risk factor for the development of eating disorders motivated by a desire to control their weight or live a healthier life. Researchers at the University of São Paulo (USP) in Brazil have found in a recent study that Risk of eating disorders among vegan diet [...]