منابع مشابه
Promoter Methylation in the Genesis of Gastrointestinal Cancer
Colorectal cancers (CRC)--and probably all cancers--are caused by alterations in genes. This includes activation of oncogenes and inactivation of tumor suppressor genes (TSGs). There are many ways to achieve these alterations. Oncogenes are frequently activated by point mutation, gene amplification, or changes in the promoter (typically caused by chromosomal rearrangements). TSGs are typically ...
متن کاملGenesis revisited
December 2 of this year became a memorable day in human history when NASA held a press conference to declare an epoch-making finding. Felisa Wolfe-Simon, a NASA astrobiologist at the US Geological Survey, led a team investigating a bacterium that can sustain its growth by replacing phosphorus with arsenic, an element generally harmful to living organisms. Her report was published online in the ...
متن کاملGenesis, Retold
While, within the last decades, the atlas has lost its dominance as a medium of spatial representation to digital media, it has recently attracted a significant aesthetic interest. Artists and writers have created books that are explicitly or implicitly linked to the atlas, delving into its history, its epistemological preconditions, and its representational capacity. In this essay, I suggest a...
متن کاملCancer Stem Cell: Pathways and New approach to Cancer Genesis and Treatment
The “cancer-stem-cell (CSCs) hypothesis” implies that tumors are composed of a heterogeneous population of cells, within which resides a small population of cancer stem cells that are responsible for the maintenance and propagation of the tumors. These cells possess the stem cell properties of self-renewal and of inhibited differentiation, but lost the controls operating in normal stem cells, o...
متن کاملGenesis of pandemic influenza.
During the last decade the number of reported outbreaks caused by highly pathogenic avian influenza (HPAI) in domestic poultry has drastically increased. At the same time, low pathogenic avian influenza (LPAI) strains, such as H9N2 in many parts of the Middle East and Asia and H6N2 in live bird markets in California, have become endemic. Each AI outbreak brings the concomitant possibility of po...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Lancet
سال: 1904
ISSN: 0140-6736
DOI: 10.1016/s0140-6736(01)34701-3