BACKGROUND Endophytic fungi, present mainly in the Ascomycota and Basidiomycota phyla, are associated with different plants and represent important producers of bioactive natural products. Brazil has a rich biodiversity of plant species, including those reported as being endemic. Among the endemic Brazi...
Antibacterianos/aislamiento & purificación,
Antibacterianos/farmacología,
Antifúngicos/aislamiento & purificación,
Antifúngicos/farmacología,
Antimaláricos/aislamiento & purificación,
Antimaláricos/farmacología,
Bioensayo,
Candida/efectos de los fármacos,
Endófitos/química,
Bacterias Aerobias Gramnegativas/efectos de los fármacos,
Bacterias Grampositivas/efectos de los fármacos,
Magnoliopsida/clasificación,
Magnoliopsida/microbiología,
Pruebas de Sensibilidad Microbiana,
Hongos Mitospóricos/efectos de los fármacos,
Plasmodium/efectos de los fármacos,
Clima Tropical
Abstract This study aimed to evaluate the effect of the composite shade and distance from the light-curing unit (LCU) tip on the irradiance reaching the bottom of composite disks and on the depth of polymerization. Composites of three shades (opaque - OXDC, bleach - BXL, and A2) were inserted into molds ...
Mardini, Victor;
Rohde, Luis A;
Ceresér, Keila M;
Gubert, Carolina M;
Silva, Emily G da;
Xavier, Fernando;
Parcianello, Rodrigo;
Röhsig, Liane M;
Pechansky, Flávio;
Szobot, Claudia M.
Objectives: To compare levels of a marker of lipid peroxidation (thiobarbituric acid reactive substances, TBARS) and brain-derived neurotrophic factor (BDNF) in umbilical cord blood (UCB) between newborns exposed to crack/cocaine in utero (exposed newborns [EN], n=57) and non-exposed newborns (NEN, n=99)...
Valproic acid (VPA), an anti-epileptic drug, has been reported to cause male sub/infertility. Together with searching for alternative treatments, the degrees to which testosterone levels and sperm quality are decreased under VPA treatment also need to be clarified. This study aimed to investigate the pro...
Momordica/química,
Extractos Vegetales/administración & dosificación,
Antioxidantes/administración & dosificación,
Ácido Valproico/toxicidad,
Testículo/efectos de los fármacos,
Ratas Wistar,
Inmunohistoquímica,
Western Blotting,
Receptores Androgénicos/efectos de los fármacos,
Fosfoproteínas,
Antígeno Ki-67
The chemical constituents and insecticidal activity of essential oil obtained by hydrodistillation of the leaves of Paullinia pinnata Linn (Sapindaceae) are being reported. The essential oil were analysed by using gas chromatography (GC) and gas chromatography coupled with mass spectrometry (GC-MS). Diff...
The chemical composition of the essential oil and carotenoid content of the parasitic plant Cuscuta mitraeformis are described for the first time. The essential oil was analyzed by GC-FID and GC-MS revealing nonanal (24.6%) as the main constituent followed by thymol (16.5%) and eugenol (7.5%). The total ...
Some known flavonols from the outer bark polar fraction of the native species Croton polycarpus Benth. (Euphorbiaceae) were isolated and quercetin, quercitrin and rutin were identified as the most abundant constituents. From this sample, a clean TLC non polar sub- fraction (A-1) obtained by CC, afforded ...
Clinopodium gilliesii (Benth.) Kuntze, harvested in the Chilean highlands, contains a surprising 93.87% of the toxic monoterpene pulegone in the essential oil. These results show remarkable differences with studies of the same species carried out in Argentina and Peru. These dissimilarities in the monote...
Extracts from leaves of C. sylvestris have cytotoxic effect in different tumor cell lines, possibly due to clerodane type diterpenes (casearins). On the other hand, there are few studies related to the antitumor activity of the essential oils from this species. This work evaluated for the first time the ...
The chemical constituents of essential oils obtained by hydrodistillation of the leaves of Atalantia roxburghiana Hook. f. and Tetradium trichotomum Lour., as well as the leaves and fruits of Macclurodendron oligophlebia (Merr.) Hartl. (Rutaceae) are being reported. The essential oils were analysed by us...
