Component
Lactobacillus species in the upper small intestine
Lactobacillus species in the upper small intestine. Species, exposure and limitations are retained in each linked claim.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
How nutrients influence it
Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
How nutrients reach it in more than one step
Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.
Tracing routes…
What it does
Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.
What acts on it
Metformin shifted the upper small-intestinal microbiota partly by increasing the abundance of Lactobacillus, and transplanting that microbiota into untreated rats reproduced the increase in glucose sensing through SGLT1.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/metformin-research/29056513.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "a04767b5cd42e2e3e3eced3fc1f6bc2c20d8c71adb044483fe8443ef1c59fc97", "start_char": 0, "end_char": 1110, "text_sha256": "a04767b5cd42e2e3e3eced3fc1f6bc2c20d8c71adb044483fe8443ef1c59fc97"}
- experimental_model
- Rat upper small-intestinal infusion, microbiota transplantation and SGLT1 measurements
- exposure
- Upper small-intestinal metformin in high-fat-diet rats
- limitations
- A regional intestinal mechanism in rats. Transplantation between rats supports the microbial step; human relevance is not established here.
- nutrient_topic
- Metformin research collection; topical membership is not evidence of a direct clinical effect, and pharmacological exposure is not dietary intake. · Metformin
- organism
- Rat
- plain_language
- Transferring the bacteria transferred the sensing effect.
- primary_references
- [metformin-p29056513] Metformin Alters Upper Small Intestinal Microbiota that Impact a Glucose-SGLT1-Sensing Glucoregulatory Pathway. (2018). https://pubmed.ncbi.nlm.nih.gov/29056513/ DOI: 10.1016/j.cmet.2017.09.019
- tissue_or_cell_type
- Upper small intestine
Metformin: transport, molecular targets, gut mechanisms and nutrient interactions (2026-09-19) · lines 983–994
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Rat upper small-intestinal infusion, microbiota transplantation and SGLT1 measurements · source_derived_draft · unverified_draft
### metformin-lactobacillus-shift Metformin shifted the upper small-intestinal microbiota partly by increasing the abundance of Lactobacillus, and transplanting that microbiota into untreated rats reproduced the increase in glucose sensing through SGLT1. Condition category: normal nutrient_topic: Metformin research collection; topical membership is not evidence of a direct clinical effect, and pharmacological exposure is not dietary intake. plain_language: Transferring the bacteria transferred the sensing effect. organism: Rat tissue_or_cell_type: Upper small intestine experimental_model: Rat upper small-intestinal infusion, microbiota transplantation and SGLT1 measurements limitations: A regional intestinal mechanism in rats. Transplantation between rats supports the microbial step; human relevance is not established here. exposure: Upper small-intestinal metformin in high-fat-diet rats evidence_span: {"source_cache": "artifacts/metformin-research/29056513.abstract.txt", "locator": "Indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "a04767b5cd42e2e3e3eced3fc1f6bc2c20d8c71adb044483fe8443ef1c59fc97", "start_char": 0, "end_char": 1110, "text_sha256": "a04767b5cd42e2e3e3eced3fc1f6bc2c20d8c71adb044483fe8443ef1c59fc97"} [metformin-p29056513] Metformin Alters Upper Small Intestinal Microbiota that Impact a Glucose-SGLT1-Sensing Glucoregulatory Pathway. (2018). https://pubmed.ncbi.nlm.nih.gov/29056513/ DOI: 10.1016/j.cmet.2017.09.019
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.