Strain Profile
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Lactobacillus gasseri OLL2809
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Food-origin
Where this strain was first isolated, curated from the literature and culture-collection catalogs. It describes provenance only — not suitability, and not benefit.
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Sequenced
Whether a public genome assembly is linked for this strain. Without one the genome screens cannot run. It is not a verdict on the organism.
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Public genome assembly available
Lactobacillus gasseri OLL2809 (reclassified as Lactobacillus paragasseri OLL2809) has been studied across in vitro, animal, and human clinical settings with a focus on immune modulation. Human randomized controlled trials have examined this strain in the context of seasonal pollen allergy symptoms, immune markers in athletes, and premenstrual psychological symptoms. Animal studies have examined regulatory T cell activity and depressive-like behavior in mice. These are research topics, not findings; the papers do not establish that this strain treats or prevents any condition.
Where it's been studied Tags come from a conservative keyword scan of each paper's title, abstract, and summary. A tag is research coverage, not measured effect. How we classify this →
Share of this strain's 15 body-system-tagged papers that concern each system. Research coverage, not measured effect.
Symptoms in the research A tag means the paper's text names the symptom or condition — research coverage, not evidence of benefit. How we classify this →
Share of this strain's 5 symptom-tagged papers that mention each symptom or condition. Research coverage, not evidence of benefit.
Research Study-type filters use AI-classified labels, audited but not guaranteed — check the paper itself before leaning on one. How we classify this →
28 papers reference this strain in the probiotic database.
Match confidence
How strongly this paper was matched to this strain when the corpus was linked. It orders the list — it says nothing about the study's quality or its findings.
How we classify this →
2024
IN_VITRO
2023
RCT
2022
ANIMAL
2020
IN_VITRO
2020
IN_VITRO
2016
ANIMAL
2015
RCT
2014
RCT
2013
ANIMAL
2013
RCT
2013
IN_VITRO
2012
ANIMAL
2011
ANIMAL
2009
RCT
2008
ANIMAL
2006
ANIMAL
2015
RCT
2011
ANIMAL
2010
RCT
2007
ANIMAL
Browse all 28 papers →
Modulation of Mouse Dendritic Cells In Vitro by Lactobacillus gasseri Postbiotic Proteins
· Probiotics and Antimicrobial Proteins
Lactobacillus paragasseri OLL2809 Improves Premenstrual Psychological Symptoms in Healthy Women: A Randomized, Double-Blind, Placebo-Controlled Study
· Nutrients
Lactobacillus paragasseri OLL2809 Improves Depression-Like Behavior and Increases Beneficial Gut Microbes in Mice
· Frontiers in Neuroscience
Secretome Analysis of Mouse Dendritic Cells Interacting with a Probiotic Strain of Lactobacillus gasseri
· Nutrients
Total RNA and genomic DNA of Lactobacillus gasseri OLL2809 induce interleukin-12 production in the mouse macrophage cell line J774.1 via toll-like receptors 7 and 9
· BMC Microbiology
Enhancement of Oral Tolerance Induction in DO11.10 Mice by Lactobacillus gasseri OLL2809 via Increase of Effector Regulatory T Cells
· PLoS ONE
The effects of Lactobacillus gasseri OLL2809 intake on oral immune function in college rugby athletes
· Japanese Journal of Physical Fitness and Sports Medicine
Pharmacological Characteristics of Lacobacillus gasseri OLL2809 and its Application to the Endometriosis Therapy
· Journal of Womens Health Issues and Care
Effects of Lactobacillus gasseri OLL2809 on the Induced Endometriosis in Rats
· Bioscience Biotechnology and Biochemistry
Effects of Lactobacillus gasseri OLL2809 and α-lactalbumin on university-student athletes: a randomized, double-blind, placebo-controlled clinical trial
· Applied Physiology Nutrition and Metabolism
Differential modulation of innate immunity in vitro by probiotic strains of Lactobacillus gasseri
· BMC Microbiology
Ameliorative Effect of Lactic Acid Bacterium Lactobacillus gasseri OLL2809 on Endometriosis (2012 Symposium of the Japan Dairy Science Association) -- (Update on Nutritional Research of Milk Components)
乳酸菌Lactobacillus gasseri OLL2809の子宮内膜症改善効果 (平成24年度 日本酪農科学会シンポジウム編) -- (乳成分の栄養研究Update)
· Medical Entomology and Zoology
Lactobacillus gasseri OLL2809 and its RNA suppress proliferation of CD4+ T cells through a MyD88-dependent signalling pathway
· Immunology
Efficacy of Oral Administration of a Heat-Killed Lactobacillus gasseri OLL2809 on Patients of Japanese Cedar Pollinosis with High Japanese-Cedar Pollen-Specific IgE
· Bioscience Biotechnology and Biochemistry
Oral Administration of Heat-Killed Lactobacillus gasseri OLL2809 Reduces Cedar Pollen Antigen-Induced Peritoneal Eosinophilia in Mice
· Allergology International
An Analysis of the Effectiveness of Heat-Killed Lactic Acid Bacteria in Alleviating Allergic Diseases
· Journal of Dairy Science
Effects of Lactobacillus gasseri OLL2809 on Immune Indices and Physical Condition in Athletes
Lactobacillus gasseri OLL2809がアスリートの免疫指標およびコンディションに及ぼす効果
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Lactobacillus gasseri OLL2809 inhibits development of ectopic endometrial cell in peritoneal cavity via activation of NK cells in a murine endometriosis model
· Cytotechnology
Lactobacillus gasseri OLL2809 is effective especially on the menstrual pain and dysmenorrhea in endometriosis patients: randomized, double-blind, placebo-controlled study
· Cytotechnology
Effect of growth conditions of Lactobacillus gasseri OLL2809 on the immunostimulatory activity for production of interleukin-12 (p70) by murine splenocytes
· International Journal of Food Microbiology
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Citations
Selected papers that name this strain.
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[1]
PMID 38068843 →Lactobacillus paragasseri OLL2809 Improves Premenstrual Psychological Symptoms in Healthy Women: A Randomized, Double-Blind, Placebo-Controlled Study· Nutrients · 2023
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[2]
Source →The effects of Lactobacillus gasseri OLL2809 intake on oral immune function in college rugby athletes· Japanese Journal of Physical Fitness and Sports Medicine · 2015
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[3]
Source →Pharmacological Characteristics of Lacobacillus gasseri OLL2809 and its Application to the Endometriosis Therapy· Journal of Womens Health Issues and Care · 2014
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[4]
PMID 24195623 →Effects of Lactobacillus gasseri OLL2809 and α-lactalbumin on university-student athletes: a randomized, double-blind, placebo-controlled clinical trial· Applied Physiology Nutrition and Metabolism · 2013