Consulta: creatorFacets:"Younes,Riad Naim"
Registros recuperados: 2
Data/hora: 10/06/2024 14:11:40

Antibacterial activity of Brazilian Amazon plant extracts
Provedor de dados: 55
Autores: Suffredini,Ivana Barbosa; Paciencia,Mateus Luís Barradas; Varella,Antonio Drauzio; Younes,Riad Naim.
Infections caused by multiresistant bacteria are a widespread problem, especially in intensive care units. New antibiotics are necessary, and we need to search for alternatives, including natural products. Brazil is one of the hottest spots in the world in terms of biodiversity, but little is known about the chemical and pharmacological properties of most of the plants found in the Amazon rain forest and the Atlantic Forest. We screened 1,220 organic and aqueous extracts, obtained from Amazon and Atlantic rain forest plants, against Staphylococcus aureus, Enterococcus faecalis, Pseudomonas aeruginosa and E. coli. Seventeen organic and aqueous extracts obtained from 16 plants showed activity against both Gram-positive bacteria. None of the extracts showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Plant extract; Antibacterial activity; Amazon rain forest; Atlantic forest.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702006000600008

Extracts from Amazonian plants have inhibitory activity against tyrosinase: an in vitro evaluation
Provedor de dados: 60
Autores: Macrini,Daclé Juliani; Suffredini,Ivana Barbosa; Varella,Antonio Drauzio; Younes,Riad Naim; Ohara,Mitsuko Taba.
Dermatological disorders related to pigmentation result in tenuous hyper or hypopigmentation Cosmetic and pharmaceutical products containing depigmenting substances are used in the treatment of patients who have high pigmentation disorders, such as melasma or chloasma, post-inflammatory hyperpigmentation, senile lentigo and ephelides. Skin lightening agents are not yet totally effective or safe and therefore intensive research for the discovery of new agents is continuous. Enzyme inhibitors involved in melanogenesis, such as tyrosinase, have been discovered in Asian countries, including those isolated from plant extracts. The Brazilian flora has the highest species diversity in the world, and the chemical, pharmacological and cosmetic potential for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tyrosinase; Melanin; Plant extract/in vitro evaluation; Skin lightening agents; Amazonian plants/evaluation/dermatological use.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502009000400015