AiM  Vol.4 No.8 , June 2014
Preliminary Investigation on the Effect of Lactobacillus and Epidermal Growth Factor on Tight Junction Proteins in Experimental Clostridium difficile Infection
ABSTRACT
Clostridium difficile associated disease (CDAD) is the most common hospital acquired infection, due to exposure to various drugs. C. difficile toxins influence barrier function in intestinal epithelium. Biotherapeutic approaches, employing probiotic and epidermal growth factor (EGF) could help in barrier protein protection and aid in CDAD management. A preliminary investigation on the effect of Lactobacillus acidophilus and EGF on tight junction proteins in experimentally induced C. difficile infection was done. BALB/mice were divided into 5 groups. Group 1 was comprised of healthy controls, whereas animals in Groups 2 - 5 were sub-divided into 3 subgroups (a, b and c) each. Animals in Groups 2 - 5 received C. difficile inoculum either on day 1 (Group 2) or after pretreatment with ampicillin (Group 3), cyclosporine (Group 4) or lansoprazole (Group 5). Additionally animals in subgroups “b” and “c” also received L. acidophilus and EGF inocula respectively after C. difficile challenge. All animals were investigated for the presence of tight junction proteins (occludin, α-actinin and zonula occludens) in their colonic segments. Data were analyzed using the SPSS version 10 software. These three proteins were present in significantly less (P < 0.05) number of animals in the drug receiving animals, whereas they were found in significantly more (P < 0.05) number of animals receiving L. acidophilus and EGF after challenge with ampicillin, cyclosporine and lansoprazole, suggesting their role in protecting intestinal barrier function.

Cite this paper
Kaur, S. , Vaishnavi, C. , Ray, P. , Singh, M. and Kochhar, R. (2014) Preliminary Investigation on the Effect of Lactobacillus and Epidermal Growth Factor on Tight Junction Proteins in Experimental Clostridium difficile Infection. Advances in Microbiology, 4, 425-435. doi: 10.4236/aim.2014.48047.
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