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Activity of Thymus capitellatus volatile extract, 1,8-cineoleand borneol agains...
Machado, M.; Dinis, A. M.; Santos-Rosa, M.; Alves, V.; Salgueiro, L.; Cavaleiro, C.; Sousa, M. C.In the search for new leishmanicidal agents, Thymus capitellatus Hoffmanns. & Link (familyLamiaceae) volatile extract and its major compounds, 1,8-cineole and borneol, were testedagainst Leishmania infantum, Leishmania tropica and Leishmania major. Plant volatile extract(essential oil) was analysed by GC and GC–MS and the activity of essential oil on Leishmaniapromastigotes viability was assessed using tetrazol...
Activity of Thymus capitellatus volatile extract, 1,8-cineole and borneol again...
Machado, M.; Dinis, A. M.; Santos-Rosa, M.; Alves, V.; Salgueiro, L.; Cavaleiro, C.; Sousa, M. C.In the search for new leishmanicidal agents, Thymus capitellatus Hoffmanns. & Link (family Lamiaceae) volatile extract and its major compounds, 1,8-cineole and borneol, were tested against Leishmania infantum, Leishmania tropica and Leishmania major. Plant volatile extract (essential oil) was analysed by GC and GC–MS and the activity of essential oil on Leishmania promastigotes viability was assessed using tetr...
Studies on the toxicity of an aqueous suspension of C60 nanoparticles using a b...
Santos, Sandra M. A.; Dinis, A. M.; Rodrigues, David M. F.; Peixoto, Francisco; Videira, Romeu A.; Jurado, A.S.The increasing use of C60 nanoparticles and the diversity of their applications in industry and medicine has led to their production in a large scale. C60 release into wastewaters and the possible accumulation in the environment has raised concerns about their ecotoxicological impact. In the present study, an aqueous suspension of C60 nanoparticles was prepared and its potential toxicity studied in laboratory, ...
Levels of ochratoxin A in serum from urban and rural Portuguese populations and...
Lino, C. M.; Baeta, M. L.; Henri, M.; Dinis, A. M. P.; Pena, A. S.; Silveira, M. I. N.Urban and rural population exposure to ochratoxin A (OTA) in central zone of Portugal was investigated in three places: Coimbra, Verride and Ereira. ; http://www.sciencedirect.com/science/article/B6T6P-4PYYTY1-6/1/d92ebdd35d9b9545c0b4cc338410924b
Ochratoxin A in nephropathic patients from two cities of central zone in Portugal
Dinis, A. M. P.; Lino, C. M.; Pena, A. S.Ochratoxin A (OTA) produced by Aspergillus and Penicilliumgenera contaminates several foods. OTA is nephrotoxic to all animal species studied so far, and most likely to humans, who show the longest half-life for elimination of this toxin among all examined species. OTA has other toxic effects such as teratogenicity, immunotoxiity, genotoxicity, and is also mutagenic and carcinogenic, all of which lead to life-t...
A contribution to the ultrastructural knowledge of the pollen exine in subtribe...
Pereira Coutinho, A.; Dinis, A. M.Abstract To better understand the relationships within the Asteroideae and Inuleae, the structure of the pollen exine was investigated in seven genera and nine species of the subtribe Inulinae using LM, TEM and SEM. All taxa have a senecioid pattern of exine. The tectal complex consists of three main layers that differ in thickness and morphology: a tectum, a columellar layer, and a layer consisting of the bas...
Ultrastructural study of the relationship between generative and vegetative cel...
Dinis, A. M.; Mesquita, J. F.Summary InMagnolia ×soulangeana pollen grains the generative cell (GC) does not become totally free within the vegetative cell (VC), at least until the pollen tube emergence. Due to a deviation in its detachment process from the sporoderm, the opposing ends of the VC plasmalemma do not fuse themselves when the GC moves away from the intine. Consequently, the interplasmalemmic space surrounding the GC does not b...
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