My last post on lactobacillus rhamnosus was back in 2012, I recently found some new interesting articles on PubMed, so time for an update. Over the weekend, I had a run to Canada to pick up a supply of Mutaflor for my wife (Crohn’s Disease) and spotted Jamieson probiotic for traveler’s diarrhea. They were 10 billion CFU of Lactobacillus Rhamnosus GG per capsule. Culturelle is the same strain and dosage — except for one thing, the wife did not react to Culturelle like she did to Jamieson’s!!! Jamieson’s had a much stronger effect and was 40% cheaper per capsules. I suspect that the Jamieson’s was a lot fresher (i.e. less time since manufacture) than Culturelle.
I have always found that probiotic intended to treat traveller’s diarrhea tend to be good candidate probiotic (if there is research backing it).
Latest Articles on Lactobacillus Rhamnosus
- Probiotic Lactobacillus rhamnosus reduces organophosphate pesticide absorption and toxicity to Drosophila melanogaster[ 2016]. This hints that it may reduce MCS. My wife is trying an experiment with doing far infrared sauna followed by probiotics. It seems to be reducing her MCS sensitivity.
- Probiotic lactobacilli: a potential prophylactic treatment for reducing pesticide absorption in humans and wildlife . “Probiotic Lactobacillus rhamnosus GR-1-supplemented yoghurt reduced the bioaccumulation of mercury and arsenic in pregnant women and children.” High mercury levels is associated with MCS
- “The children and pregnant women in the study were found to have elevated blood levels of lead and mercury compared to age- and sex-matched Canadians. Consumption of probiotic yogurt containing 10(10) CFU Lactobacillus rhamnosus GR-1 had a protective effect against further increases in mercury (3.2 nmol/liter; P = 0.035) and arsenic (2.3 nmol/liter; P = 0.011) blood levels in the pregnant women, but this trend was not statistically significant in the children.” 
- Lectin-Like Molecules of Lactobacillus rhamnosus GG Inhibit Pathogenic Escherichia coli and Salmonella Biofilm Formation .
- “We present 4 cases of clinically diagnosed Food protein-induced allergic proctocolitis (AP) whose symptoms quickly and completely resolved with probiotic Lactobacillus rhamnosus GG (LGG) monotherapy. All 4 infants avoided any dietary restrictions. The range of time from probiotic initiation to symptom resolution was 7-28 days.” 
- Lactobacillus rhamnosus induced epithelial cell apoptosis, ameliorates inflammation and prevents colon cancer development in an animal model.
- “clinical and immunologic effect of probiotic and vitamin D supplementation … showed better clinical and immunologic response in children with allergic rhinitis.”
- Lactobacillus rhamnosus GG Intake Modifies Preschool Children’s Intestinal Microbiota, Alleviates Penicillin-Associated Changes, and Reduces Antibiotic Use .
- “we demonstrated that twice-weekly treatment of sex steroid-deficient mice with the probiotics Lactobacillus rhamnosus GG (LGG) o…reduces gut permeability, dampens intestinal and BM inflammation, and completely protects against bone loss.” 
- “Lactobacillus rhamnosus GG-supplemented formula expands butyrate-producing bacterial strains in food allergic infants.”  – low butyrate was found in MCS individuals.
- Lactobacillus rhamnosus GG inhibits the toxic effects of Staphylococcus aureus on epidermal keratinocytes .