Rat models have been used to advance many areas of medical research, including cardiovascular disease, psychiatric disorders (studies of behavioral intervention and addiction), neural regeneration, diabetes, transplantation, autoimmune disorders (rheumatoid arthritis), cancer, and wound & bone healing. While the completion of the rat genome sequence provides very key information, how these diseases relate to gene function requires an efficient method to create knockout rat models in which specific genomic sequences are manipulated.
Most techniques for genetic manipulation, including random mutagenesis with a gene trap (retroviral-based and non-retroviral-based), gene knock-outs/knock-ins, and conditional mutations, depend upon the culture and manipulation of embryonic stem (ES) cells. Rat ES cells were only recently isolated and no demonstration of gene modification in them has been reported. Consequently, many genetic manipulation techniques widely used in the mouse are not possible in the rat.
Adapted from the Wikipedia article Knockout rat, under the G. N. U. Free Documentation License. Please also see http://en.wikipedia.org/wiki
Knockout rat – Production challenges
Rat models have been used to advance many areas of medical research, including cardiovascular disease, psychiatric disorders (studies of behavioral intervention and addiction), neural regeneration, diabetes, transplantation, autoimmune disorders (rheumatoid arthritis), cancer, and wound &.
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