Search results for "pathology [Aging]"
showing 10 items of 1700 documents
Isolation and characterization of a BamHI element in psam3 a gene of Pisum sativum L. induced during early stages of arbuscular mycorrhiza development
2001
L-Tyrosine beta-naphthylamide is a potent competitive inhibitor of tyramine N-(hydroxycinnamoyl)transferase in vitro
2001
Peut-on se passer du cuivre en protection des cultures biologiques ?
2019
Le cuivre est utilisé pour contrôler diverses maladies fongiques ou bactériennes, principalement sur vigne, en productions fruitières et en cultures légumières. Il constitue la seule substance active à effet fongicide fort et gamme d’action large homologuée en agriculture biologique. Or la mise en évidence d’effets environnementaux négatifs du cuivre, notamment sur les organismes du sol, a conduit à des restrictions réglementaires d’usage (plafonnement des doses autorisées), et même à son interdiction comme pesticide dans certains pays d’Europe du Nord. De ces restrictions croissantes à l’emploi du cuivre, qui posent des difficultés notamment aux producteurs qui ne peuvent recourir à des fo…
Connaissances nécessaires à la gestion du risque "écorces sensibles au nématode du pin"
2018
Connaissances nécessaires à la gestion du risque "écorces sensibles au nématode du pin"
Réalisation d'une analyse de risques relative au houblon du Japon et élaboration de recommandations de gestion
2018
Réalisation d'une analyse de risques relative au houblon du Japon et élaboration de recommandations de gestion
Étude comparée du rôle des exsudats racinaires de pois (Pisum sativum) et de féverole (Vicia faba) durant les premières phases d’infection par Aphano…
2018
International audience
Malignant epithelial/exocrine tumors of the pancreas
2020
Summary Pancreatic malignant exocrine tumors represent the most important cause of cancer-related death for pancreatic neoplasms. The most common tumor type in this category is represented by pancreatic ductal adenocarcinoma (PDAC), an ill defined, stroma-rich, scirrhous neoplasm with glandular differentiation. Here we present the relevant characteristics of the most important PDAC variants, namely adenosquamous carcinoma, colloid carcinoma, undifferentiated carcinoma, undifferentiated carcinoma with osteoclast-like giant cells, signet ring carcinoma, medullary carcinoma and hepatoid carcinoma. The other categories of malignant exocrine tumors, characterized by fleshy, stroma-poor, circumsc…
Development of the wing discs of Zophobas atratus under natural and experimental conditions: occurrence of a gradual larval-pupal commitment in the e…
1999
Using light and electron microscopy, we studied the development of the wing discs in the large beetle Zophobas atratus, under natural and experimental conditions. A reversible differentiation of the wing discs is usually observed during supernumerary instars of crowded larvae. Juvenile hormone analog (JHA) application during the wandering period or compelled experimental crowding during the larval-pupal switchover – or commitment – inhibits the onset of metamorphosis. Isolation, followed by recrowding, also induces the disc cells to secrete unusual cuticular material. Recrowding is able to trigger the reversal of metamorphosis during the 4-day period when larval-pupal commitment is taking p…
Blue-green algalike cells associated with the tunic of Ciona intestinalis L.
1980
Certain organisms resembling blue-green algae embedded in the tunic of the solitary ascidian Ciona intestinalis L. are described. Their probable symbiotic role as related to the peculiar habitat of this ascidian is suggested.
Improved method to retain cytosolic reporter protein fluorescence while staining for nuclear proteins
2014
Staining of transcription factors (TFs) together with retention of fluorescent reporter proteins is hindered by loss of fluorescence using current available methods. In this study, it is shown that current TF staining protocols do not destroy fluorescent proteins (FPs) but rather that fixation is not sufficient to retain FPs in the cytosol of the permeabilized cells. In this article, a simple and reliable protocol is elaborated, which allows efficient TF and cytokine staining while retaining FPs inside fixed cells.