BACKGROUND The immunomodulative effects of Lactic Acid Bacteria as probiotics have been already demonstrated. OBJECTIVES The current study aimed to evaluate the effect of oral administration of Lactobacillus acidophilus on the immune responses and patterns of cytokine production in the BALB/c mice bearing breast cancer. MATERIALS AND METHODS The current study used thirty inbred BALB/c mice,...

BACKGROUND DATA The presence of Streptococcus mutans and Lactobacillus acidophilus in dental structure is an indicator of a cariogenic biofilm. Photodynamic therapy is a technique that involves the activation of photosensitizers by light in the presence of oxygen, resulting in the production of reactive radicals capable of inducing cell death. Reduction of bacteria levels can provide additional...

A commercial plant extract (prepared from olive, garlic, onion and citrus extracts with sodium acetate (SA) as a carrier) was evaluated to extend the viability of yogurt starter and probiotic bacteria as a means to enhance the shelf life of live and active culture, probiotic nonfat yogurt. Yogurts prepared from three different formulas (0.5* plant extract, 0.25* SA, or no supplement) and cultur...

The peroxidase of human parotid saliva has been purified by concentration, gel filtration on Sephadex G-200, and ion exchange chromatography on Amberlite CG-50. The purified product was devoid of amylase activity, lysozyme activity, and immunoglobulin A (IgA). However, it had an inhibitory effect on the growth of Lactobacillus acidophilus in complete growth medium and on lysine accumulation by ...

To assess the effect of probiotic (having Lactobacillus acidophilus) supplementation on pre-ruminant (0-3 months age) buffalo calves, total eight buffalo calves were divided into two groups of four calves in each with completely randomized design (CRD) according to their body weight. One group was the control while the other group was supplemented with bacteria Lactobacillusacidophilus-containi...

Numerous studies have been conducted that demonstrate a small but significant improvement in feed conversion efficiency when a direct-fed microbial product containing a combination of Lactobacillus acidophilus (strain LA51) and Propionibacterium freudenreichii (strain PF24) was added to conventional corn-based feedlot diets. The purpose of this study was to determine whether this direct-fed com...

BACKGROUND Probiotics may alter immune regulation. Recently, we showed that the probiotic bacteria Lactobacillus acidophilus NCFM™ influenced the activity of regulatory T cells (Tregs) in vitro. The aim of the present work was to demonstrate if L. acidophilus NCFM™ also affects the function of Tregs in vivo. METHODS Development of colitis after transfer of CD4+CD25- T cells and protection fro...

AIMS This study was undertaken to evaluate the oxalate-degrading activity in several Lactobacillus species widely used in probiotic dairy and pharmaceutical preparations. Functional characterization of oxalyl-CoA decarboxylase and formyl-CoA transferase in Lactobacillus acidophilus was performed in order to assess the possible contribution of Lactobacillus in regulating the intestinal oxalate h...

The antagonistic effect of lactic acid bacteria (LAB, including Lactobacillus acidophilus, L. bulgaricus, L. casei and Streptococcus thermophilus) on Staphylococcus aureus and Escherichia coli was evaluated on MRS agar with the deferred and cross-streaking techniques, and in milk with the plate counting method. All LAB were repressive to S aureus and E coli on the agar medium. However, their su...

Objective: The present study was carried out to isolate and identify L. acidophilus and to compare the effect of inoculation methods and cultivation conditions on the yield of the bacteria. Methods: Probiotic Lactobacillus strain was isolated from a commercial yogurt and the characterization of the bacteria was performed using gram stain, motility, catalase, biochemical tests and morphological ...