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Helichrysum italicum: from traditional use to scientific data
Viegas, Daniel Antunes; Palmeira-de-Oliveira, Ana; Salgueiro, Lígia; Martinez-de-Oliveira, José; Palmeira-de-Oliveira, RitaEthnopharmacological relevance Helichrysum italicum (Roth) G. Don fil. (family Asteraceae) has been used for its medicinal properties for a long time and, even nowadays, continues to play an important role in the traditional medicine of Mediterranean countries. Based on this traditional knowledge, its different pharmacological activities have been the focus of active research. This review aims to provide an ove...
Ciência, Crise e Mudança. 3.º Encontro Nacional de História das Ciências e da T...
Brandão, José Manuel; Nunes, Maria de Fátima; Dias, Pedro Sousa; Abrantes, Isabel; Almeida, Maria Antónia; Antunes, Carlos; Assis, José LuísIII Encontro Nacional de História das Ciências e da Tecnologia. O Centro de Estudos de História e Filosofia da Ciência, organiza o 3.º Encontro Nacional de História da Ciência e da Técnica, sob o tema «Ciência, Crise e Mudança» que tem lugar na Universidade de Évora, nos dias 26, 27 e 28 de Setembro de 2012. O Primeiro Encontro Nacional de História da Ciência teve lugar em 21 e 22 Julho de 2009, no seguimento ...
Requisitos de qualidade em óleos essenciais : a importância das monografias da ...
Martins, Ana Paula; Nogueira, Teresa; Costa, Maria do Céu; Salgueiro, LígiaOs óleos essenciais são produtos naturais utilizados por diversas indústrias, entre as quais se destacam a indústria alimentar e a indústria farmacêutica. Devido à variabilidade inerente a todos os produtos naturais e também aos crescentes problemas de adulterações, este artigo tem por objectivo divulgar e chamar a atenção da importância das normas internacionais existentes, nomeadamente das monografias da Farm...
In vitro propagation of the wild carrot Daucus carota L. subsp. halophilus (Bro...
Tavares, Ana Cristina; Salgueiro, Lígia R.; Canhoto, Jorge M.Daucus carota subsp. halophilus, is a wild crop relative of domestic carrot. It is an aromatic plant widely used in folk medicine due to recognized therapeutic properties of its essential oils. Experiments were carried out to evaluate the potential of in vitro propagation techniques to the conservation of this endemic and endangered taxon. The results showed that shoot tips of in vitro germinated seeds were abl...
Essential oils from Distichoselinum tenuifolium: Chemical composition, cytotoxi...
Tavares, Ana Cristina; Gonçalves, Maria José; Cruz, Maria Teresa; Cavaleiro, Carlos; Lopes, Maria Celeste; Canhoto, Jorge; Ribeiro Salgueiro, LigiaEthnopharmacological relevance: Several aromatic plants and their essential oils are known to possess antimicrobial and anti-inflammatory properties. Distichoselinum tenuifolium (Lag.) Garcia Martin & Silvestre, an Iberian endemism, is traditionally used in the treatment of contact dermatitis and skin infections. However, the cellular mechanisms through which this plant exerts their beneficial effects are not k...
Screening of Five Essential Oils for Identification of Potential Inhibitors of ...
Neves, Ângela; Rosa, Susana; Gonçalves, Juliana; Rufino, Ana; Judas, Fernando; Salgueiro, Lígia; Lopes, Celeste; Cavaleiro, CarlosNuclear factor-κB is a key transcription factor activated by pro-inflammatory signals, like interleukin-1β (IL-1), being required for the expression of many inflammatory and catabolic mediators, such as nitric oxide (NO), that play an important role in arthritic diseases. This work aimed at screening and identifying natural inhibitors of IL-induced NF-κB activation and NO production in human articular chondrocy...
Screening of Five Essential Oils for Identification of Potential Inhibitors of ...
Neves, Ângela; Rosa, Susana; Gonçalves, Juliana; Rufino, Ana; Judas, Fernando; Salgueiro, Lígia; Lopes, Celeste; Cavaleiro, CarlosNuclear factor-κB is a key transcription factor activated by pro-inflammatory signals, like interleukin-1β (IL-1), being required for the expression of many inflammatory and catabolic mediators, such as nitric oxide (NO), that play an important role in arthritic diseases. This work aimed at screening and identifying natural inhibitors of IL-induced NF-κB activation and NO production in human articular chondrocy...
Essential oil of Daucus carota subsp. halophilus: Composition, antifungal activ...
Tavares, Ana Cristina; Gonçalves, Maria José; Cavaleiro, Carlos; Cruz, Maria Teresa; Lopes, Maria Celeste; Canhoto, Jorge; Ribeiro Salgueiro, LigiaEthnopharmacological relevance: Essential oils are known to possess antimicrobial activity against a wide spectrum of bacteria and fungi. Daucus carota L. is used since olden times in traditional medicine, due to recognized therapeutic properties, namely the antimicrobial activity of their essential oils. Aim of the study: In the present study the composition and the antifungal activity of the oils of Daucus ca...
Susceptibility of Helicobacter pylori to essential oil of Dittrichia viscosa su...
Miguel, Graça; Faleiro, Leonor; Cavaleiro, Carlos; Salgueiro, Lígia; Casanova, JosephThe essential oil of Dittrichia viscosa subsp. revoluta and its fractions were assessed for anti-Helicobacter activity. The essential oil was isolated by hydrodistillation, submitted to flash column chromatography and analysed by gas chromatography, gas-chromatography coupled to mass spectrometry and 13C-nuclear magnetic resonance. The anti-Helicobacter activity was determined by incorporation of the crude esse...
Analysis of Juniperus communis subsp. alpina needle, berry, wood and root oils ...
Gonny, Marcelle; Cavaleiro, Carlos; Salgueiro, Ligia; Casanova, JosephThe essential oils from needles, berries, wood and roots of Juniperus communis L. subsp. alpina were obtained by hydrodistillation, fractionated on column chromatography and analysed by GC, GC-MS and 13C-NMR. Chemical compositions of wood and root oils are reported here for the first time. Eighty-two, 65, 76 and 54 components were identified, respectively, in needle, berry, wood and root oils. The chemical comp...
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