Snail1 and Zeb1 are E-cadherin-transcriptional repressors induced during epithelialmesenchymal-transition (EMT). In this article we have analyzed the factors controlling Zeb1 expression during EMT. In NMuMG cells treated with TGF-β, Snail1 RNA and protein are induced one hour after addition of the cytokine preceeding Zeb1 up-regulation that requires six to eight hours. Zeb1 gene expression is c...

Sequences of antigenic determinants were identified by limited proteolysis of peptide antigens bound to an immobilized monoclonal antibody and direct molecular weight determination of the monoclonal antibody-bound peptide fragments by 252Cf plasma desorption mass spectrometry. The epitope peptides to the monoclonal antibody h453 [Burger, R., Zilow, G., Bader, A., Friedlein, A. & Naser, W. (1988...

Smallpox, which currently is only of historical interest, was once one of the most terrible illnesses with high mortality and morbidity. In the late 18th century, the English physician and naturalist, Edward Jenner (1749 - 1823), discovered an efficient preventive technique against smallpox which he termed "vaccination". Afterwards, the practice of vaccination gradually became widespread when f...

abd- al sami’ ibn-mohammad-ali- yazdi is one of the lettered, jurists & poets of 13th century (a.h) that has done valuable services to the arabic language and literature like so many other iranian. so far, there are only a few biographical books in which he has been mentioned or introduced. unfortunately he has been forgotten during the passage of time. most of his writings are in arabic and th...

Arsenic is considered as one of the most important environmental contaminant elements. Some plant species can grow in arsenic contaminated soils and they are able to reduce arsenic toxicity. In this study, a hydroponic experiment was conducted on Isatis cappadocica, a newly-discovered As hyperaccumulator. Accordingly, we conducted this experiment to compare the interaction of effect of arsenic ...

â  â  â  â  narration elements in the story of mousa and khezr â  (based on character and time) â  â  sayyed reza solayman zadeh najafi * â  azim tahmasbi ** â  â  abstract â  â  the story consists of elements such as character and time and the story features. characters make story’s structure and there is not story without character . time element is also necessary for the story . each story...