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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Med+Life
2014 ; 7 Spec No. 3
(Spec Iss 3
): 23-30
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Barrett esophagus: history, definition and etiopathogeny
#MMPMID25870690
Gindea C
; Birla R
; Hoara P
; Caragui A
; Constantinoiu S
J Med Life
2014[]; 7 Spec No. 3
(Spec Iss 3
): 23-30
PMID25870690
show ga
The injury of the esophageal epithelium may be determined by the reflux of the
gastric acid in the esophagus. Barrett's esophagus (BE) is characterized by the
replacement of the normal squamous epithelium with the columnar epithelium, when
the healing of the lesion occurs. According to some studies, the incidence of the
esophageal adenocarcinoma in patients with BE is of about 0,5% per year. The term
Barrett's esophagus is subjected to interpretation nowadays, so it lacks the
clarity needed for the clinical and scientific communication on the subject of
columnar metaplasia of the esophageal mucosa. The major pathogenetic factor in
the development of BE is represented by the reflux disease. The cellular origin
of BE is controversial and it represents an issue that needs to be resolved
because it will have implications in the putative molecular mechanisms underlying
the metaplastic process. The epigenetic or genetic changes, which alter protein
expression, function, and/ or activity, in post-mitotic cells to drive
transdifferentiation or in stem/ progenitor cells such that they are reprogrammed
to differentiate into columnar rather than squamous cells, are driven by the
inflammatory environment created by chronic reflux. In order to be able to
develop better therapeutic strategies for the patients with this disease, an
increasing interest in understanding the pathogenesis of BE at the cellular and
molecular level presents these days.