Publications by authors named "Roberta R Carvalho"
Exploring the bioactivity potential of : phytochemical composition, antimicrobial and antileishmanial activities of extracts from different anatomical parts.
Nat Prod Res
September 2021
(L.) Br. (Lamiaceae) is an African shrub popularly known as 'cordão-de-frade' in Brazil, traditionally used to treat infectious diseases, among other uses.
View Article and Find Full Text PDFSchistosomiasis is an important parasitic disease, with about 240 million people infected worldwide. Humans and animals can be infected, imposing an enormous social and economic burden. The only drug available for chemotherapy, praziquantel, does not control reinfections, and an efficient vaccine for prophylaxis is still missing.
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- Coagulation factor VIII (FVIII) concentrates are crucial for treating Hemophilia A patients.
- Human FVIII was effectively purified from plasma using anion exchange chromatography and gel filtration methods, with varying recovery rates depending on the resin used.
- The purification process initially co-eluted vitamin K-dependent coagulation factors, but a subsequent step using Sepharose 6FF successfully recovered 70% of FVIII activity without those factors.
The presence of Shiga toxin-producing Escherichia coli (STEC) in water buffaloes is reported for the first time in South America. The prevalence of STEC ranged from 0 to 64% depending on the farm. STEC isolates exhibiting the genetic profiles stx(1)stx(2)ehxA iha saa and stx(2)ehxA iha saa predominated.
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