Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 3 de 3
Filtrar
Más filtros

Bases de datos
País/Región como asunto
Tipo del documento
Asunto de la revista
Intervalo de año de publicación
1.
J Natl Compr Canc Netw ; 14(10): 1286-1312, 2016 10.
Artículo en Inglés | MEDLINE | ID: mdl-27697982

RESUMEN

Gastric cancer is the fifth most frequently diagnosed cancer and the third leading cause of death from cancer in the world. Several advances have been made in the staging procedures, imaging techniques, and treatment approaches. The NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines) for Gastric Cancer provide an evidence- and consensus-based treatment approach for the management of patients with gastric cancer. This manuscript discusses the recommendations outlined in the NCCN Guidelines for staging, assessment of HER2 overexpression, systemic therapy for locally advanced or metastatic disease, and best supportive care for the prevention and management of symptoms due to advanced disease.


Asunto(s)
Neoplasias Gástricas , Humanos , Neoplasias Gástricas/diagnóstico , Neoplasias Gástricas/terapia
2.
Genetica ; 143(1): 11-20, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25500950

RESUMEN

Past and recent climatic changes induced shifts in species ranges. Mantis religiosa has also expanded its range across Germany within the past decades. To determine the ancestry of German M. religiosa we sequenced four mitochondrial genes (COI, COII, Cyt b, ND4) of European M. religiosa populations. We found an east, central and west European lineage of M. religiosa. These distinct lineages are consistent with genetic isolation by distance during glacial periods, and the re-colonization of northern parts of Europe by species from different refugia. Within Germany, we found haplotypes clustering to the central and west European lineage suggesting that M. religiosa immigrated from two directions into Germany. Mismatch distributions, and negative Tajima's D and Fu's Fs values indicate a current range expansion of the central and west European lineage. We hypothesise that ongoing global warming which increases the availability of thermally favourable areas in Germany for M. religiosa adds to its current range expansion. In conclusion, M. religiosa colonized Germany via two directions: west German populations descended from French populations and east German populations from Czech populations.


Asunto(s)
ADN Mitocondrial , Mantódeos/clasificación , Mantódeos/genética , Migración Animal , Animales , Ambiente , Europa (Continente) , Variación Genética , Genética de Población , Geografía , Alemania , Filogenia , Filogeografía , Análisis Espacial
3.
Environ Entomol ; 45(4): 829-40, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27271947

RESUMEN

In Germany, the thermophilic European mantid (Mantis religiosa L.) is endangered. Here, we study habitat requirements during its life, and discuss the applicability of the two conservation measures grazing and mowing to this insect species. At two study sites in south-western Germany, which were each subject to one of these measures, we recorded structural and climatic conditions within different microhabitats. We also conducted capture-mark-recapture studies for adult M. religiosa, and mapped adult roosting, oothecae deposition, egg hatching, and imaginal molting in microhabitats over two vegetation periods. In order to assess microhabitat preference of M. religiosa during its life, and identify climatic conditions driving preferences, we applied the Lille habitat preference index and conducted logistic regression analysis for life phases. Our results suggest that temperature is important for egg and nymph development. For egg deposition, females preferred solid substrates with high heat-storing capacities, as those attenuate the negative influence of cold weather periods on egg development. Being ambush predators, males and females preferred roosting sites with sufficient shelter and high prey abundance. Contrary to our expectation, the conservation measures reduced adult population sizes, and presumably reproduction rates. We thus suggest that mowing during the adult phase should reduce vegetation height to a moderate level to keep prey abundance high. Mowing with a clearing saw or grazing over a short period in small fenced areas should be preferred over prolonged grazing, as grazers collaterally stamp down the vegetation. Grazers indirectly reduce prey availability by deteriorating prevailing microclimatic conditions.


Asunto(s)
Conservación de los Recursos Naturales , Ecosistema , Mantódeos/fisiología , Conducta Predatoria , Animales , Especies en Peligro de Extinción , Femenino , Alemania , Masculino , Mantódeos/crecimiento & desarrollo , Ninfa/crecimiento & desarrollo , Ninfa/fisiología , Óvulo/crecimiento & desarrollo , Óvulo/fisiología , Densidad de Población
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA