If the. elements are oriented in-line with their short axes, the easy magnetization axis switches at a critical distance between the elements. This distance increases when the elements have tilted edges. (C) 2009 American Institute of Physics. [DOI: 10.1063/1.3169781]“
“As a Brassicaceae, Arabidopsis thaliana constitutes an excellent model system to investigate oil biosynthesis in seeds. Extensive tools for the genetic and molecular dissection of this model species are now available. Together with learn more analytical procedures adapted to its tiny seeds, these tools have allowed major advances in isolating and characterising the factors that participate in the metabolic and developmental

control of seed filling. Once the biochemical pathways

producing storage lipids, namely triacylglycerols, were elucidated, the question of the regulation of this metabolic network has arisen. The coordinated up regulation of genes encoding enzymes of the fatty acid biosynthetic pathway observed at the onset of seed maturation suggests that the pathway see more may be subjected to a system of global transcriptional regulation. This has been further established by the study of master regulators of the maturation program like LEAFY COTYLEDON2 and the characterisation of the WRINKLED I transcription factor. These factors have been shown to participate in a regulatory cascade controlling the induction of the genes involved in fatty acid biosynthesis at the onset of the maturation phase. signaling pathway Although much remains to be elucidated, the framework of the regulatory system controlling fatty acid biosynthesis in Arabidopsis seeds is coming into focus. (C) 2008 Elsevier Masson SAS. All rights reserved.”
“Background: ZAP70 gene expression is associated with poor prognosis in B-cell lymphoproliferative disorders especially chronic lymphocytic leukaemia (CLL) but its role in adult

B-ALL has not been established. On diagnostic samples from 76 patients with adult ALL (65 with B-ALL and 11 with T-ALL) ZAP70 mRNA expression levels were studied by real time-quantitative PCR (RT-qPCR) analysis.

Findings: A broad distribution of ZAP70 expression was observed in ALL, ranging from 0.002 to 5.3 fold that of the ZAP70 positive Jurkat reference cell line. No association was observed between expression levels and the presence of specific cytogenetic abnormalities. Five cases, including one case of T-ALL, had ZAP70 expression above the level of the Jurkat reference cell line.

Conclusions: Our results confirm the frequent expression of ZAP70 in adult ALL. Limited comparisons made did highlight poor-risk patients with high ZAP70 expression, but due to lack of clinical information on patient samples we were unable to directly assess the impact on disease prognosis.