Biologia, Sanitat i Medi Ambient: Envíos recientes
Mostrando ítems 121-140 de 874
Human secretory IgM emerges from plasma cells clonally related to gut memory B cells and targets highly diverse commensals
Secretory immunoglobulin A (SIgA) enhances host-microbiota symbiosis, whereas SIgM remains poorly understood. We found that gut IgM+ plasma cells (PCs) were more abundant in humans than mice and clonally related to a large ...
The explosive radiation of Cheirolophus (Asteraceae, Cardueae) in Macaronesia
Considered a biodiversity hotspot, the Canary Islands have been the key subjects of numerous evolutionary studies concerning a large variety of organisms. The genus Cheirolophus (Asteraceae) represents one of the largest ...
Novel Insights into the Nature of Intraspecific Genome Size Diversity in Cannabis sativa L.
Cannabis sativa has been used for millennia in traditional medicine for ritual purposes and for the production of food and fibres, thus, providing important and versatile services to humans. The species, which currently ...
Yeasts in amphibians are common: isolation and the first molecular characterization from Thailand
A survey of the presence of yeasts in frogs and toads in Thailand was conducted using standard mycological examination techniques. The results, which were confirmed with molecular techniques, revealed the presence of five ...
Viability-reducing activity of Coryllus avellana L. extracts against human cancer cell lines
The increasing rate of cancer incidence has encouraged the search for novel natural sources of anticancer compounds. The presence of small quantities of taxol and taxanes in Corylus avellana L. has impelled new potential ...
Ácaros parásitos de micromamíferos en Cataluña. I. Familia Glycyphagidae
<p>The study of 20 small mammals species -Rodentia. lnsectivora- collected in the Catalonian region, has allowed the discovery of 8 mite species of the family Glycyphagidae: <em>Glycyphagus</em> (<em>Myacarus</em>) ...
Effect of pRi T-DNA genes and elicitation on morphology and phytoecdysteroid biosynthesis in Ajuga bracteosa hairy roots
The medicinal plant Ajuga bracteosa is a rich source of biologically active and metabolism-enhancing phytoecdysteroids. Transgenic hairy roots from A. bracteosa were obtained by infection with Agrobacterium rhizogenes ...
Production of Encecalin in Cell Cultures and Hairy Roots of Helianthella quinquenervis (Hook.) A. Gray
Plant cell and organ cultures of Helianthella quinquenervis, a medicinal plant whose roots are used by the Tarahumara Indians of Chihuahua, Mexico, to relieve several ailments, were established to identify and quantify ...
Assassins innocents: el cas de listèria
Tot i que els microbis són uns organismes molt especials, i per tant interessants per si mateixos, també ho són perquè afecten tots els aspectes de l'existència dels humans i de la resta d'éssers vius amb els seus efectes ...
First Molecular Diagnosis of Clinical Cases of Gastric Anisakiosis in Spain
Anisakiosis is a fish-borne disease with gastrointestinal and/or allergic symptoms caused by the consumption of raw or undercooked fish parasitized with nematode larvae of the genus Anisakis. In Europe, Anisakis pegre i ...
Molecular phylogenetics and temporal diversification in the genus Aeromonas based on the sequences of five housekeeping genes
Several approaches have been developed to estimate both the relative and absolute rates of speciation and extinction within clades based on molecular phylogenetic reconstructions of evolutionary relationships, according ...
Euphorbia chamaesyce L. dentro del genero Chamaesyce S.F. Gray (Euphorbiaceae)
Desde antiguo, los caracteres morfológicos han permitido agrupar las especies de Chamaesyce, bien con rango genérico independiente (Chamaesyce S. F. Gray, Anisophyllum Haw., Xamesike Rafin.), bien supeditándolas a Euphorbia ...
Typing of Leishmania isolates from vectors and leporids of the Madrid (Spain) outbreak.
In 2009, a large outbreak of leishmaniasis, associated with environmental changes, was declared near Madrid (Spain), in which <em>Phlebotomus perniciosus</em> was the vector, whereas the main reservoirs were hares and ...
Notas corologicas balearicas de Chamaesyce S.F. Gray
Con el fin de allegar materiales para un estudio cariológico de Chamaesyce S. F. Gray que forma parte de una revisión genérica, objeto de la tesis de licenciatura de uno de nosotros J. J. Orell , se planteó la necesidad ...
A guide for the generation of repositories of clinical samples for research on Chagas disease.
Chagas disease, caused by the parasite <em>Trypanosoma cruzi</em>, affects over 6 million people, mainly in Latin America. Two different clinical phases, acute and chronic, are recognized. Currently, two anti-parasitic ...
Treatment and follow-up of a domestic ferret (Mustela putorius furo) with clinical leishmaniosis caused by Leishmania infantum
Leishmania infantum infection including treatment and follow up in domestic animals other than dogs and cats has not been described at this moment. This article describes the anti-Leishmania treatment and follow-up of a ...
Plantas falsas
Se aportan nuevos datos sobre la presencia en los herbarios del Institut Botánic de Barcelona (BC) y del Conservatoire et Jardín Botaniques de la Ville de Genéve (G) de unos pliegos con localidad falsa, pertenecientes a ...
Reflexiones en torno a la "infantilización" del alumno universitario: el canal Youtube Officinalis.com
No son pocos los profesores que piensan que con la llegada de los planes de estudios adaptados a Bolonia ha bajado la exigencia personal frente a la propia responsabilidad de los estudiantes ante su aprendizaje. El uso, ...
Datos para la Flora de Jaen
Se relacionan, a continuación, siete táxones seleccionados entre las recolecciones realizadas en junio de 1983 en el complejo orogràfico de la Sierra de Segura-Cazorla (Jaén), por C. Benedí, C. Blanché, J. Molerò y J. ...
Introducing automation to the molecular diagnosis of Trypanosoma cruzi infection: A comparative study of sample treatments, DNA extraction methods and real-time PCR assays
Background: Polymerase chain reaction (PCR) has become a useful tool for the diagnosis of Trypanosoma cruzi infection. The development of automated DNA extraction methodologies and PCR systems is an important step toward ...
