Publications by authors named "M C Veiga"

Bigels in which the cationic polymer -chitosan- is combined with an anionic polymer -karaya gum, pectin or xanthan gum- were prepared. These polymers, thanks to the attraction of their charged surface groups, are liable to form a polyelectrolyte complex that would modify the characteristics of the bigel. The obtained bigels were subsequently freeze-dried and tested to study their behavior against different conditions occurring in the vaginal environment.

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Infectious diarrhea is a common health issue that affects a large number of individuals each year. It causes significant morbidity and mortality, greatly impacting healthcare system costs. Rapid detection of the causative organism and timely treatment alters the management and outcome of the condition.

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Article Synopsis
  • The study investigates which antibacterial solutions are most effective in eradicating biofilms formed by staphylococcal bacteria on titanium surfaces during DAIR surgery.
  • Five antibacterial agents are tested: povidone-iodine, rifampicin, silver nitrate, copper sulphate, and chlorhexidine, focusing on their minimum biofilm eradication concentrations (MBEC) against both MSSA and MRSA strains.
  • Results indicate that povidone-iodine and silver nitrate are significantly more effective, achieving at least 99.9% reduction in biofilm, compared to others like rifampicin and copper sulphate, which showed limited effectiveness.
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Article Synopsis
  • The study investigates the effects of free and nanoencapsulated benznidazole on the inflammatory response and overall health of mice infected with a parasite, focusing on the role of the cholinergic system in immune regulation.
  • * The results show that while both treatments reduced parasite levels and improved blood conditions like anemia and thrombocytopenia, they did not completely eliminate the infection.
  • * Analysis reveals that benznidazole triggers changes in cholinergic signaling and results in significant inflammation and organ damage, but ultimately helps reverse some of the infection-related health issues in the test subjects.
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Copper is a trace element in plants and animals whose importance can be understood due to its role in different essential metabolic processes. Anthropogenic activities such as agriculture and mining are potential sources of pollution due to the emission of copper into the environment. Brazilian legislation ties soil quality to guideline values, among which the Prevention Value indicates the critical environmental limit for trace elements.

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