Biologia, Sanitat i Medi Ambient: Enviaments recents
Ara mostrant els elements 281-300 de 874
A topical microemulsion for the prevention of allergic rhinitis symptoms: results of a randomized, controlled, double-blind, parallel group, multicentre, multinational clinical trial (Nares study)
Background: Since barrier protection measures to avoid contact with allergens are being increasingly developed, we assessed the clinical efficacy and tolerability of a topical nasal microemulsion made of glycerol esters ...
Amaryllidaceae alkaloids: identification and partial characterization of montanine production in Rhodophiala bifida plant
Rhodophiala bifida (R. bifida) is a representative of the Amaryllidaceae plant family and is rich in montanine, an alkaloid with high pharmaceutical potential. Despite the interest in these compounds, many steps of the ...
Collyricloides massanae (Digenea: Collyriclidae): spermatozoon ultrastructure and phylogenetic importance
The spermatological characteristics of Collyricloides massanae (Digenea: Collyriclidae), a parasite of Apodemus sylvaticus caught in France, were studied by means of transmission electron microscopy. The mature sperm of ...
Copper-containing amine oxidases contribute to terminal polyamine oxidation in peroxisomes and apoplast of Arabidopsis thaliana
Polyamines (PAs) are oxidatively deaminated at their primary or secondary amino-groups by copper-containing amine oxidases (CuAOs) or FAD-dependent amine oxidases (PAOs), respectively. Both enzymes have long been considered ...
Estudio comparativo sobre la variacion morfologica y fisiologica de Gelidium crinale y Gelidium spathulatum colectados en el Mediterraneo catalan
Se estudia fenológicamente dos especies de Gelidium durante el período comprendido entre abril 1980 y marzo 1981, con especial referencia a variaciones morfológicas, crecimiento, estadios reproductivos y de pigmentos.
Morphologic and Genetic Characterization of Protospirura canariensis n. sp. (Nematoda, Spiruridae), a Parasite of the Black Rat Rattus rattus (Rodentia, Muridae) from El Hierro Island (Canary Archipelago, Spain)
A new spirurid nematode, Protospirura canariensis n. sp., a parasite of the black rat Rattus rattus Linnaeus, 1758 (Rodentia: Muridae), in El Hierro Island (Canary Archipelago, Spain), was described by means of light (LM) ...
Identification of blood meals in field captured sand flies by a PCR-RFLP approach based on cytochrome b gene
Leishmaniasis is a vector-borne disease transmitted byphlebotominesand flies. Information about blood meal preferences in sand flies is essential to understand the epidemiology of the diseaseto adopt control measures.In ...
Gut bacterial community of the xylophagous cockroaches Cryptocercus punctulatus and Parasphaeria boleiriana
Cryptocercus punctulatus and Parasphaeria boleiriana are two distantly related xylophagous and subsocial cockroaches. Cryptocercus is related to termites. Xylophagous cockroaches and termites are excellent model organisms ...
Relationship between membrane vesicles, extracellular ATP and biofilm formation in Antarctic Gram-negative bacteria
Biofilms offer a safe environment that favors bacterial survival; for this reason, most pathogenic and environmental bacteria live integrated in biofilm communities. The development of biofilms is complex and involves many ...
Ciclo vital y posicion sistematica de Jaagiella alpicola Vischer (Chlorophyceae)
Jaagiella alpicola fue aislada de suelos del Cap Norfeu (Gerona) mediante cultivos de enriquecimiento. Las células vegetativas son uninucleadas y contienen un cloroplasto parietal sin pirenoide. La reproducción asexual se ...
La funció dels pins en el paisatge dels Països Catalans
Un viatger que resseguís els Països Catalans d'un cap a l'altre, sense idees preconcebudes, obtindria la impressió d'haver recorregut una terra bàsicament de pinedes. Si no de Salses a Guardamar, almenys de Figueres a la ...
Echinococcus multilocularis (Cestoda, Cyclophyllidea, Taeniidae): functional ultrastructure of the penetration glands and nerve cells within the oncosphere
The fine structure of the infective hexacanths of Echinococcus multilocularis was examined with particular emphasis on the functional ultrastructure of penetration glands and nerve cells directly involved in the mechanism ...
Immunosuppression and Chagas disease: a management challenge
Immunosuppression, which has become an increasingly relevant clinical condition in the last 50 years, modifies the natural history of Trypanosoma cruzi infection in most patients with Chagas disease. The main goal in this ...
Downregulation of Tomato STEROL GLYCOSYLTRANSFERASE 1 Perturbs Plant Development and Facilitates Viroid Infection
Potato spindle tuber viroid (PSTVd) is a plant pathogen naturally infecting economically important crops such as tomato (Solanum lycopersicum). Here, we aimed to engineer tomato plants highly resistant to PSTVd and developed ...
Ultrastructural evidence for completion of the entire miracidial maturation in intrauterine eggs of the digenean Brandesia turgida (Brandes, 1888) (Plagiorchiida: Pleurogenidae)
Results of this TEM study provide ultrastructural evidence that miracidial morphogenesis is fully completed within the intrauterine eggs situated in the most posterior uterine regions of the pleurogenid trematode Brandesia ...
Autochthonous and imported tegumentary leishmaniasis in Catalonia (Spain): Aetiological evolution in the last four decades and usefulness of different typing approaches based on biochemical, molecular and proteomic markers
Leishmaniasis is a transmissible disease caused by Leishmania protozoa. Spain is endemic for both visceral and cutaneous leishmaniasis, the autochthonous aetiological agent being Leishmania infantum. Around the world, the ...
Structural characterization and identification of cyclic lipopeptides produced by Bacillus methylotrophicus DCS1 strain
Bacillus methylotrophicus DCS1 strain was isolated from diesel contaminated soil and screened for its ability to produce biosurfactants; it was found effective for the production of surface active molecules. The structural ...
Cholinesterase Inhibition Activity, Alkaloid Profiling and Molecular Docking of Chilean Rhodophiala (Amaryllidaceae)
Amaryllidaceae plants are the commercial source of galanthamine, an alkaloid approved for the clinical treatment of Alzheimer's disease. The chemistry and bioactivity of Chilean representatives of Rhodophiala genus from ...
