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5 results on '"Peitz de Lima, Cristina"'

2. Tynanthus micranthus: An efficient antioxidant and tyrosinase activity inductor

Author

Mazureki Campos Patrcia, Dallarmi Miguel Marilis, Suellen Rech Katlin, Jos Zorta Merino Francis, Fleith Otuki Michel, Peitz de Lima Cristina, Colombi Cansian Fernanda, Gomes Miguel Obdulio, and Bezerra da Silva Cristiane

Subjects
Pharmacology, Antioxidant, biology, Chemistry, DPPH, medicine.medical_treatment, Tyrosinase, Pharmaceutical Science, Catechin, Glutathione, Superoxide dismutase, chemistry.chemical_compound, Biochemistry, medicine, biology.protein, Quercetin, Peroxidase
Abstract

The aim of this paper was to evaluate the potential in vitro antioxidant activity of Tynanthus micranthus Corr. Mello ex Schum and its activity on tyrosinase, a melanogenesis-involved enzyme. The methods employed were 2,2- diphenyl-1-picril-hydrazyl (DPPH), phosphomolybdenum complex, catalase, peroxidase, superoxide dismutase (SOD), reduced glutathione (GSH) and mushroom tyrosinase activity assay, against the activity of the remaining hydroalcoholic fractions of the leaves (HLF), stems (HSF), and roots (HRF). The results showed that the HLF protected erythrocytes against oxidative stress and did not lead to oxidation of the cellular system, maintaining normal levels of SOD and GSH, with effect similar to catechin and quercetin used as standards. HLF also led to stimulation of tyrosinase enzyme, when compared with the control. It is thus concluded that the HLF has antioxidant potential and may be used in studies involving the development of drugs for hypopigmentation diseases. Key words: Tyrosinase, antioxidant, pro-oxidant, natural products.

Published
2014

4. Análise de amostras de flores de Calêndula (Calendula officinalis L., Asteraceae) comercializadas na grande Curitiba.

Author

Otramario Santos, Lais Mondadori, Aparecida de Oliveira, Luciana, Sichinel Tibulo, Eliane Patrícia, and Peitz de Lima, Cristina

Abstract

Copyright of Revista de Ciências Farmacêuticas Básica e Aplicada is the property of Revista de Ciencias Farmaceuticas Basica e Aplicada and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2015

5. Bioautography to assess antibacterial activity of Ottonia martiana Miq. (Piperaceae) on the human oral microbiota.

Author

Machado Cunico, Miriam, Garcia Auer, Celso, Peitz de Lima, Cristina, Côcco, Lilian Cristina, Itsuo Yamamoto, Carlos, Dallarmi Miguel, Marilis, Gomes Miguel, Obdulio, and Sanquetta, Carlos Roberto

Subjects
AMIDES, TOOTHACHE, ESCHERICHIA coli, BIOLOGICAL assay, STREPTOCOCCUS mutans
Abstract

Copyright of Revista de Ciências Farmacêuticas Básica e Aplicada is the property of Revista de Ciencias Farmaceuticas Basica e Aplicada and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2012

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