L.Acidophilus - Clinical Trials

I Product Info I Ingredients
I Recommended Use
I Clinical Trials
I Research Brief
I References

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Indication: intestinal and vaginal microflora imbalance, unbalanced diet, flatulence, impaired immunity, hypovitaminosis, lactose intolerance, bad breath, after taking medication (especially antibiotics).

Actions: normalizes intestine microflora, suppresses pathogenic bacteria, improves digestion and food assimilation, helps decrease allergic reactions, supports immune function, prevents constipation and diarrhea, helps control bad breath.

Ingredients (per one capsule):

Lactobacillus acidophilus – 2.5 billion CFU.

 

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L.Acidophilus - Clinical Trials:

Small bowel bacterial overgrowth and related diarrhea is a condition that frequently accompanies anatomic disorders, surgically created blind loops or strictures with partial small bowel obstruction and although it is often controlled with antimicrobial therapy, alternative treatment may be needed. The aim of this study was to evaluate the efficacy of an oral probiotic preparation of 2 viable lyophilized strains of lactobacilli (1.5 g each) compared with placebo. Twenty two patients with proven overgrowth and chronic diarrhea are described. In random order and double-blind fashion, 2 groups of patients received identical capsules with both Lactobacillus casei and L. acidophillus strains CERELA (12 patients) (LC) and placebo (10 patients) (P) during three consecutive periods of 7 days each followed by a similar three periods of control after withdrawal. At the end of each period the mean daily number of stools, glucose breath H2 test, and symptoms were considered. Lactobacillus were investigated in feces in both groups at day 0 (baseline), on day 21 of treatment with LC and P and on day 21 after withdrawal. Compared with P a significant reduction in mean daily number of stools was achieved with LC (p < 0.005) at 15 days, and (p < 0.0005) at 21 days and the effect was sustained at 7 days and 15 days (p < 0.005) after withdrawal. With respect to breath H2 level a significant decrease in H2 concentration was noted at 7 days (p < 0.005) at 15 days, and 21 days (p < 0.0001) with LC and only a significant decrease (p < 0.005) was observed at 7 days after withdrawal. No significant changes were observed with respect to symptoms. The Lactobacillus CERELA strains were isolated from the feces in all patients LC (n = 12) on day 21, and by contrast no Lactobacillus were observed except in two patients out of seven patients after withdrawal. In summary, this study provides evidence that LC are effective for treatment of bacterial overgrowth--related chronic diarrhea, and suggest that probiotics must be used with continuity. (1)

Probiotic bacteria exhibit a variety of properties, which are unique to a particular strain. Lactobacillus acidophilus-SDC 2012, 2013 are new strains isolated from Korean infants' feces. The potential utility of Lactobacillus acidophilus-SDC 2012, 2013 in irritable bowel syndrome (IBS) was studied. Forty IBS patients were randomized into a placebo (n = 20) and probiotics group (n = 20). Four weeks of treatment with L. acidophilus-SDC 2012, 2013 was associated with a reduced score for abdominal pain or discomfort compared to the baseline (P = 0.011). The percent reduction in abdominal pain or discomfort exceeded the placebo scores by more than 20% (23.8 and 0.2% for probiotics and placebo, respectively, P = 0.003). There was a significant difference in the proportion of responders between the probiotics and placebo groups (P = 0.011). There was no drop out or adverse events for either group during the study period. Lactobacillus acidophilus-SDC 2012, 2013 appeared to have a beneficial effect in patients with IBS. Further studies are warranted. (2)

This review considers whether probiotics are effective agents for the treatment and/or prevention of bacterial vaginosis (BV). There seems to be an association between the absence of, or low concentrations of, vaginal lactobacilli and the development of BV. Many studies have suggested that the presence of H2O2-producing vaginal lactobacilli may protect against BV, although some studies do not support this hypothesis. In-vitro studies have suggested that certain specific strains of lactobacilli are able to inhibit the adherence of Gardnerella vaginalis to the vaginal epithelium and/or produce H2O2, lactic acid and/or bacteriocins, which inhibit the growth of bacteria causing BV. Most clinical trials showed that intra-vaginal administration of Lactobacillus acidophilus for 6-12 days, or oral administration of L. acidophilus or Lactobacillus rhamnosus GR-1 and Lactobacillus fermentum RC-14 for 2 months, resulted in the cure of BV (defined as a 0-1 positive score according to Amsel's criteria), and/or reduced the recurrences of BV, and/or caused an increase in vaginal lactobacilli and restoration of a normal vaginal microbiota, significantly more frequently than did a placebo, acetic acid or no treatment. (3)

Fatigue and impaired performance in athletes is well recognised and has been loosely linked to "overtraining". Reduced concentration of IgA in the saliva and increased shedding of Epstein Barr virus (EBV) have been associated with intense training in elite athletes. OBJECTIVE: To determine whether athletes presenting with fatigue and impaired performance had an immune defect relevant to defective containment of EBV infection, and whether a probiotic preparation (Lactobacillus acidophilus) shown to enhance mucosal immunity in animal models could reverse any detected abnormality. RESULTS: The fatigued athletes had clinical characteristics consistent with re-activation of EBV infection and significantly (p = 0.02) less secretion of interferon (IFN) gamma from blood CD4 positive T cells. After one month of daily capsules containing 2 x 10(10) colony forming units of L acidophilus, secretion of IFNgamma from T cells had increased significantly (p = 0.01) to levels found in healthy control athletes. A significant (p = 0.03) increase in salivary IFNgamma concentrations in healthy control athletes after the one month course of L acidophilus demonstrated in man the capacity for this probiotic to enhance the mucosal IFNgamma concentration. 
CONCLUSION: This is the first evidence of a T cell defect in fatigued athletes, and of its reversal following probiotic therapy. (4)

Two controlled clinical studies were performed to examine effects of consumption of one daily serving of fermented milk (FM) (yogurt) on serum lipids. METHODS: In the first study, subjects were randomly allocated to FM containing Lactobacillus acidophilus L1 of human origin or to FM containing L. acidophilus ATCC 43211 of swine origin. In this single-blind study, subjects consumed one 200 ml serving of FM daily for 3 weeks. The second study was a double-blind, placebo-controlled, cross-over study. Subjects completed a 4-week first treatment, had a 2-week washout, and completed a second 4-week treatment. In the second study subjects consumed FM containing L. acidophilus L1 or placebo FM over 4 weeks. RESULTS: In the first study, FM containing L. acidophilus L1 was accompanied by a 2.4% (p<0.05) reduction of serum cholesterol concentration. In the second study, strain L1 reduced serum cholesterol concentration by 3.2% (p<0.05) in the first treatment period. In the second treatment period there were no significant changes in serum cholesterol concentration. Combined analysis of the two L1 treatment studies demonstrated a 2.8% (p<0.01) reduction in serum cholesterol concentration. CONCLUSION: Since every 1% reduction in serum cholesterol concentration is associated with an estimated 2% to 3% reduction in risk for coronary heart disease, regular intake of FM containing an appropriate strain of L. acidophilus has the potential of reducing risk for coronary heart disease by 6 to 10%. (5)