Publications by authors named "Joao M F Lima Silva"
Article Synopsis
- The study analyzes the prevalence and diagnostic methods of DENV, CHIKV, and ZIKV infections in Juazeiro do Norte, Brazil, where these arboviruses co-circulate.
- In 2016, 182 plasma samples from patients with arbovirus symptoms were tested for specific antibodies and confirmed through molecular analyses.
- Results showed a high prevalence of DENV and CHIKV antibodies, with notable rates of ZIKV mono-infection and co-infections, highlighting the effectiveness of the testing methods used.
The objective of this study was to quantify the phenolic compounds and to evaluate and compare the biological activities of the ethyl acetate (EtOAc), methanolic (MeOH) and aqueous extracts from the Micromeria nervosa aerial parts, based on their antioxidant activity and enzymatic inhibition. Total phenolic and flavonoid contents were calculated and individual compo3unds were detected using LC-ESI-MS/MS. The antioxidant activity was determined using six different assays while enzymatic activity was determined by α-amylase and tyrosinase enzyme inhibition.
View Article and Find Full Text PDFObjective: To estimate the prevalence of low handgrip strength (HGS) levels and sociodemographic characteristics, health behaviours and body fatness status related in adolescents.
Method: Cross-sectional epidemiological study with 636 adolescents aged 14-19 years in a city in southern Brazil. HGS was measured by dynamometer.