Consulta: subjectFacets:"Antioxidation"
Registros recuperados: 2
Data/hora: 13/06/2024 01:33:02

In vitro anti-inflammatory, cytotoxic and antioxidant activities of boesenbergin A, a chalcone isolated from Boesenbergia rotunda (L.) (fingerroot)
Provedor de dados: 56
Autores: Isa,N.M.; Abdelwahab,S.I.; Mohan,S.; Abdul,A.B.; Sukari,M.A.; Taha,M.M.E.; Syam,S.; Narrima,P.; Cheah,S.Ch.; Ahmad,S.; Mustafa,M.R.
The current in vitro study was designed to investigate the anti-inflammatory, cytotoxic and antioxidant activities of boesenbergin A (BA), a chalcone derivative of known structure isolated from Boesenbergia rotunda. Human hepatocellular carcinoma (HepG2), colon adenocarcinoma (HT-29), non-small cell lung cancer (A549), prostate adenocarcinoma (PC3), and normal hepatic cells (WRL-68) were used to evaluate the cytotoxicity of BA using the MTT assay. The antioxidant activity of BA was assessed by the ORAC assay and compared to quercetin as a standard reference antioxidant. ORAC results are reported as the equivalent concentration of Trolox that produces the same level of antioxidant activity as the sample tested at 20 µg/mL. The toxic effect of BA on...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boesenbergia rotunda; Boesenbergin A; Cytotoxicity; Antioxidation; Anti-inflammatory.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012000600008

Activation of phenylalanine ammonia lyase as a key component of the antioxidative system of salt-challenged maize leaves
Provedor de dados: 61
Autores: Gholizadeh,Ashraf; Kohnehrouz,B. Baghban.
Differential antioxidative activities were assessed in the leaves of two maize inbreds (A-180 and A-619) under salt stress and the subsequent recovery period. Total antioxidation test revealed that in both inbreds, this ability was sharply increased during stress period, but was slowly reverted back to the normal level during recovery. The enzymatic antioxidative analysis showed differential patterns in the activities of catalase, peroxidase and polyphenol oxidase in both maize inbreeds. Comparative analysis of the activity of phenylalanine ammonia lyase (PAL), a key enzyme at the gateway of propanoid biosynthetic pathway, suggested that propanoid compounds might be antioxidants of pivotal importance to the salt-challenged maize antioxidation system. As...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidation; Maize; Salt stress; PAL; Catalase; Peroxidase; Polyphenol oxidase.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000400001