Rat Enpep (Glutamyl aminopeptidase) ELISA Kit

Background: The determination of altered expression of genes in specific tumor types and their effect upon cellular processes may create insight in tumorigenesis and help to design better treatments. The Flatcoated retriever is a dog breed with an exceptionally high incidence of histiocytic sarcomas. The breed develops two distinct entities of histiocytic neoplasia, a soft tissue form and a visceral form. Gene expression studies of these tumors have value for comparable human diseases such as histiocytic/dendritic cell sarcoma for which knowledge is difficult to accrue due to their rare occurrence. In addition, such studies may help in the search for genetic aberrations underlying the genetic predisposition in this dog breed. Methods: Microarray analysis and pathway analyses were performed on fresh-frozen tissues obtained from Flatcoated retrievers with localized, soft tissue histiocytic sarcomas (STHS) and disseminated, visceral histiocytic sarcomas (VHS) and on normal canine spleens from various breeds. Expression differences of nine genes were validated with quantitative real-time PCR (qPCR) analyses. Results: QPCR analyses identified the significantly altered expression of nine genes; PPBP, SpiC, VCAM1, ENPEP, ITGAD (down-regulated), and GTSF1, Col3a1, CD90 and LUM (up-regulated) in the comparison of both the soft tissue and the visceral form with healthy spleen. DAVID pathway analyses revealed 24 pathways that were significantly involved in the development of HS in general, most of which were involved in the DNA repair and replication process. Conclusions: This study identified altered expression of nine genes not yet implicated in histiocytic sarcoma manifestations in the dog nor in comparable human histiocytic/dendritic sarcomas. Exploration of the downside effect of canine inbreeding strategies for the study of similar sarcomas in humans might also lead to the identification of genes related to these rare malignancies in the human.

This study seeks to assess the baseline future demand for energy and the trajectory of CO2 emissions level in Greece, taking into account possible fluctuations in international energy prices as well as potential scenarios for restructuring the taxation system of energy products. The conclusions of the study are based on analysis done with ENPEP, an engineering bottom-up model that employs a market-based simulation approach to project future energy supply/demand balances and the associated air emissions. The study concludes that CO2 emissions from the Greek energy sector are to increase by 43.5%-44.1 % in 2010 compared to 1990 levels. In addition, it is clearly depicted that whereas the examined scenarios of energy prices fluctuation alter significantly the energy consumption pattern in Greece, it does not have considerable impact on the increase rate of CO2 emissions.