TY - JOUR
T1 - Effect of acute alcohol ingestion prior to burn injury on intestinal bacterial growth and barrier function
AU - Kavanaugh, Michael J.
AU - Clark, Charles
AU - Goto, Masakatsu
AU - Kovacs, Elizabeth J.
AU - Gamelli, Richard L.
AU - Sayeed, Mohammed M.
AU - Choudhry, Mashkoor A.
N1 - Funding Information:
Authors gratefully acknowledge Adriana Romero for technical assistance. This study was supported from NIH through AA12901 (M.A. Choudhry), GM42577 (R.L. Gamelli), AG18859 (E.J. Kovacs) and GM53235 (M.M. Sayeed).
PY - 2005/5
Y1 - 2005/5
N2 - Previous studies from our laboratory have shown that acute alcohol (EtOH) ingestion prior to burn injury enhances intestinal bacterial translocation. This study tested if increased intestinal bacterial translocation in alcohol and burn injured rats is due to an overgrowth in intestinal bacteria. We determined if the translocation was accompanied with alterations in intestinal permeability and immune cell population. Rats (225-250 g) were gavaged with alcohol to achieve a blood EtOH level in the range of 100 mg/dl prior to burn or sham injury (25% total body surface area). Two days after injury, we found that acute alcohol ingestions prior to burn injury results in a significant increase in bacterial counts in small intestine. The increase in intestinal bacterial counts accompanied a significant increase in intestinal permeability. Finally, immunohistochemical analysis revealed a substantial (p < 0.05) loss of both T cell and dendritic cells in intestine of alcohol and burn injured rats compared with intestine of rats receiving either burn or sham injury. Altogether, results presented in this manuscript suggest that increase in intestinal bacterial growth along with alterations in intestinal permeability and immune status contribute to the increase in bacterial translocation observed in alcohol and burn injured rats.
AB - Previous studies from our laboratory have shown that acute alcohol (EtOH) ingestion prior to burn injury enhances intestinal bacterial translocation. This study tested if increased intestinal bacterial translocation in alcohol and burn injured rats is due to an overgrowth in intestinal bacteria. We determined if the translocation was accompanied with alterations in intestinal permeability and immune cell population. Rats (225-250 g) were gavaged with alcohol to achieve a blood EtOH level in the range of 100 mg/dl prior to burn or sham injury (25% total body surface area). Two days after injury, we found that acute alcohol ingestions prior to burn injury results in a significant increase in bacterial counts in small intestine. The increase in intestinal bacterial counts accompanied a significant increase in intestinal permeability. Finally, immunohistochemical analysis revealed a substantial (p < 0.05) loss of both T cell and dendritic cells in intestine of alcohol and burn injured rats compared with intestine of rats receiving either burn or sham injury. Altogether, results presented in this manuscript suggest that increase in intestinal bacterial growth along with alterations in intestinal permeability and immune status contribute to the increase in bacterial translocation observed in alcohol and burn injured rats.
KW - Bacterial translocation
KW - Dendritic cell
KW - Intestinal permeability
KW - T cell
KW - Thermal injury
UR - http://www.scopus.com/inward/record.url?scp=14944370045&partnerID=8YFLogxK
U2 - 10.1016/j.burns.2004.09.021
DO - 10.1016/j.burns.2004.09.021
M3 - Article
C2 - 15774282
AN - SCOPUS:14944370045
SN - 0305-4179
VL - 31
SP - 290
EP - 296
JO - Burns
JF - Burns
IS - 3
ER -