Publications by authors named "D Silveira"

Background: Cirrhosis has been pointed out as a clinical entity that leads to worse clinical prognosis in COVID-19 patients. However, this concept is controversial in the literature. We aimed to evaluate clinical outcomes by comparing patients with cirrhosis to those without cirrhosis in a Brazilian cohort.

View Article and Find Full Text PDF

Background: Colorectal cancer (CRC) remains a significant cause of morbidity and mortality worldwide. In patients with inflammatory bowel disease, who have twice the risk of developing CRC, chronic inflammation has been recognized to contribute to colitis-associated cancer (CAC) development. Jacalin, a lectin extracted from jackfruit seeds, has been shown to recognize altered glycosylation and to exert antiproliferative and cytotoxic effects in CRC.

View Article and Find Full Text PDF

Forensic laboratories play a pivotal role in identifying and quantifying drugs in police seizures, often using spectroscopic techniques in combination with chromatographic methods that rely on chemical reference substances (CRS). The demand for a wide variety of CRS is critical, not only for common drugs like cocaine but also for the rapidly increasing number of new psychoactive substances (NPS), which emerge weekly. However, acquiring CRS is costly and bureaucratic because of the restricted circulation of these substances.

View Article and Find Full Text PDF

The demand for food is increasing, which poses significant challenges to humanity's sustainable and sufficient food production. Using fertilizers with new technologies with a low environmental impact is becoming increasingly necessary. In this context, the industry has been creating alternatives to optimize the use of nitrogen (N) fertilizers, with the improvement of urea being crucial for sustainable agricultural production.

View Article and Find Full Text PDF