Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 300.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 300.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 300.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 300.79999999999995 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\29624892
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cancer+Med
2018 ; 7
(5
): 2003-2012
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Antibiotic-mediated bacteriome depletion in Apc(Min/+) mice is associated with
reduction in mucus-producing goblet cells and increased colorectal cancer
progression
#MMPMID29624892
Kaur K
; Saxena A
; Debnath I
; O'Brien JL
; Ajami NJ
; Auchtung TA
; Petrosino JF
; Sougiannis AJ
; Depaep S
; Chumanevich A
; Gummadidala PM
; Omebeyinje MH
; Banerjee S
; Chatzistamou I
; Chakraborty P
; Fayad R
; Berger FG
; Carson JA
; Chanda A
Cancer Med
2018[May]; 7
(5
): 2003-2012
PMID29624892
show ga
Recent epidemiological evidence suggests that exposure to antibiotics in
early-to-middle adulthood is associated with an increased risk of colorectal
adenoma. However, mechanistic studies in established preclinical cancer to
examine these claims are extremely limited. Therefore, we investigated the effect
of long-term exposure of an antibiotic cocktail composed of Vancomycin, Neomycin,
and Streptomycin, on tumor development and progression in the Apc(Min/+) mouse,
an established genetic model for familial adenomatous polyposis. Clinical
pathologies related to tumor development as well as intestinal and colon tissue
histopathology were studied at ages 8, 12, and 16 weeks of age, which correspond
to the approximate ages of development of neoplasia, gut inflammation with
polyposis, and cancer progression, respectively, in this animal model. We show
that the antibiotics significantly increase the severity of clinical symptoms,
including effects on intestinal histology and goblet cell numbers. In addition,
they promote small intestinal polyposis. Finally, metagenomic analysis of fecal
samples demonstrated that antibiotic exposure is associated with a significant
but nonuniform depletion of the animal's natural gut flora. Overall, these
findings support the premise that long-term antibiotic exposure mediates the
selected depletion of gut microbial communities and the concomitant thinning of
the protective mucus layer, resulting in an increase in tumor development.