Recursos de colección

Repositorio da Universidade dos Açores (8.657 recursos)

O Repositório Institucional da Universidade dos Açores desenvolvido no âmbito do projecto RCAAP.

DCTD - Artigos em Revistas Internacionais / Articles in International Journals

Mostrando recursos 1 - 6 de 6

  1. The genus Inula and their metabolites : From ethnopharmacological to medicinal uses

    Seca, Ana M. L.; Grigore, Alice; Pinto, Diana C. G. A.; Silva, Artur M. S.
    ETHNOPHARMACOLOGICAL RELEVANCE: The genus Inula comprises more than one hundred species widespread in temperate regions of Europe and Asia. Uses of this genus as herbal medicines have been first recorded by the Greek and Roman ancient physicians. In the Chinese Pharmacopoeia, from the 20 Inula spp. distributed in China, three are used as Traditional Chinese medicines, named Tumuxiang, Xuanfuhua and Jinfeicao. These medicines are used as expectorants, antitussives, diaphoretics, antiemetics, and bactericides. Moreover, Inula helenium L. which is mentioned in Minoan, Mycenaean, Egyptian/Assyrian pharmacotherapy and Chilandar Medical Codex, is good to treat neoplasm, wound, freckles and dandruff. Many other Inula...

  2. Lipophilic profile of the edible halophyte Salicornia ramosissima

    Isca, Vera M. S.; Seca, Ana M. L.; Pinto, Diana C. G. A.; Silva, Helena; Silva, Artur M. S.
    Salicornia ramosissima J. Woods is considered, in the Iberian Peninsula and France, a gourmet product. Nevertheless, is one of the less studied Salicornia species. In this work, GC-MS was employed to, for the first time; fully characterise the lipophilic profile of S. ramosissima and to assess the effect of natural and extra irrigation in that profile. The obtained data showed esterified and free fatty acids, fatty alcohol, sterols, alkanes and aromatic acid derivatives, being palmitic acid, tetracosanol and octacosanol the most abundant compounds. The extra irrigation increases significantly (P < 0.001) the content of esterified lipophilic compounds. Stigmastanol, 24-ethyl-δ(22)-coprostenol, several...

  3. Xanthenedione derivatives, new promising antioxidant and acetylcholinesterase inhibitor agents

    Seca, Ana M. L.; Leal, Stephanie B.; Pinto, Diana C. G. A.; Barreto, Maria do Carmo; Silva, Artur M. S.
    Natural and synthetic xanthone derivatives are well-known for their ability to act as antioxidants and/or enzyme inhibitors. This paper aims to present a successful synthetic methodology towards xanthenedione derivatives and the study of their aromatization to xanthones. Additionally their ability to reduce Fe(III), to scavenge DPPH radicals and to inhibit AChE was evaluated. The results demonstrated that xanthenedione derivative 5e, bearing a catechol unit, showed higher reduction capacity than BHT and similar to quercetin, strong DPPH scavenging activity (EC50 = 3.79 ± 0.06 μM) and it was also showed to be a potent AChEI (IC50 = 31.0 ± 0.09 μM)...

  4. Plasma aminothiol profile and some of its determinants in apparently Azorean subjects

    Lima, Ana; Ferin, Rita; Baptista, José; Pavão, Maria Leonor
    Copyright © 2014 Ana Lima et al. This is an open access article distributed under the Creative Commons Attribution License,which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

  5. Rapid, sensitive and simultaneous determination of ascorbic and uric acids in human plasma by ion-exclusion HPLC-UV

    Ferin, Rita; Pavão, Maria Leonor; Baptista, José
    Copyright © 2013 The Canadian Society of Clinical Chemists. Published by Elsevier Inc. All rights reserved.

  6. Cross-sectional study of risk factors for atherosclerosis in the Azorean population

    Cymbron, Teresa; Raposo, Mafalda; Kazachkova, Nadia; Bettencourt, Conceição; Silva, Francisca; Santos, Cristina; Dahmani, Yahya; Lourenço, Paula C.; Ferin, Rita; Pavão, Maria Leonor; Lima, Manuela
    Copyright © 2011 Informa UK Ltd.

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