{"id":"a82912cd-d4b3-5880-9b34-c70b3dc99190","stable_key":"7484635e-cc8f-5cd6-a978-6dc5775a7db5:berberine-pilot-gi","predicate":"associated_with","statement":"The pilot report described transient gastrointestinal adverse effects in 20 patients, reported as 34.5%.","claim_class":"observational","status":"source_derived_draft","evidence_grade":"ungraded","direction":"context_dependent","is_public":true,"mechanism_event_id":"b0b312b7-7ca6-5e27-9baa-735707287f31","mechanism_event_label":"Digestive effects were common enough to be recorded explicitly.","subject":{"id":"7bbe0633-b2f1-510f-adc0-3c4d0ddad05d","slug":"berberine","display_name":"Berberine","entity_type_key":"small_molecule"},"object":{"id":"17ab2004-d1be-5cd5-8c13-bbd31a6f730c","slug":"gastrointestinal-adverse-events","display_name":"Gastrointestinal adverse events","entity_type_key":"cellular_process"},"evidence_count":1,"mechanism_event":{"id":"b0b312b7-7ca6-5e27-9baa-735707287f31","stable_key":"7484635e-cc8f-5cd6-a978-6dc5775a7db5:berberine-pilot-gi-event","event_type":"observed_intervention","label":"Digestive effects were common enough to be recorded explicitly.","description":"The pilot report described transient gastrointestinal adverse effects in 20 patients, reported as 34.5%.","status":"provisional","compartment":null,"participants":[{"entity":{"id":"7bbe0633-b2f1-510f-adc0-3c4d0ddad05d","slug":"berberine","display_name":"Berberine","entity_type_key":"small_molecule"},"role":"subject","stoichiometry":null,"state_label":"","sequence_order":0,"notes":""},{"entity":{"id":"17ab2004-d1be-5cd5-8c13-bbd31a6f730c","slug":"gastrointestinal-adverse-events","display_name":"Gastrointestinal adverse events","entity_type_key":"cellular_process"},"role":"target","stoichiometry":null,"state_label":"","sequence_order":1,"notes":""}]},"contexts":[{"dimension":"evidence_span","value_text":"{\"source_cache\": \"artifacts/berberine-research/18442638.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"0d85d3f03994b65869cd6c52fb46d679f220e4221a6764b38833468818551b66\", \"start_char\": 0, \"end_char\": 1655, \"text_sha256\": \"0d85d3f03994b65869cd6c52fb46d679f220e4221a6764b38833468818551b66\"}","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"experimental_model","value_text":"Small randomized comparison plus uncontrolled add-on cohort","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"exposure","value_text":"Three-month berberine/metformin comparison and berberine add-on study","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"limitations","value_text":"Small pilot, not an equivalence trial proving berberine substitutes for metformin. 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(2008). https://pubmed.ncbi.nlm.nih.gov/18442638/ DOI: 10.1016/j.metabol.2008.01.013","comparator":null,"unit":null,"notes":"","entity":null},{"dimension":"tissue_or_cell_type","value_text":"Glycemic control and gastrointestinal effects","comparator":null,"unit":null,"notes":"","entity":null}],"evidence":[{"id":"61aeacb5-ed64-5d0b-820a-177b9733d2ae","evidence_kind":"source_excerpt","locator":"Lines 1234-1245","start_line":1234,"end_line":1245,"excerpt":"### berberine-pilot-gi\nThe pilot report described transient gastrointestinal adverse effects in 20 patients, reported as 34.5%.\nCondition category: normal\nnutrient_topic: Berberine research collection; topical membership is not evidence of a direct dietary effect.\nplain_language: Digestive effects were common enough to be recorded explicitly.\norganism: Adults with type 2 diabetes\ntissue_or_cell_type: Glycemic control and gastrointestinal effects\nexperimental_model: Small randomized comparison plus uncontrolled add-on cohort\nlimitations: Small pilot, not an equivalence trial proving berberine substitutes for metformin. Add-on cohort lacks a concurrent placebo comparison.\nexposure: Three-month berberine/metformin comparison and berberine add-on study\nevidence_span: {\"source_cache\": \"artifacts/berberine-research/18442638.abstract.txt\", \"locator\": \"Primary indexed abstract; zero-based, end-exclusive Unicode character offsets\", \"file_sha256\": \"0d85d3f03994b65869cd6c52fb46d679f220e4221a6764b38833468818551b66\", \"start_char\": 0, \"end_char\": 1655, \"text_sha256\": \"0d85d3f03994b65869cd6c52fb46d679f220e4221a6764b38833468818551b66\"}\n[berberine-p18442638] Efficacy of berberine in patients with type 2 diabetes mellitus. (2008). https://pubmed.ncbi.nlm.nih.gov/18442638/ DOI: 10.1016/j.metabol.2008.01.013","model_system":"Small randomized comparison plus uncontrolled add-on cohort","directness":"author_interpretation","verification_status":"source_derived_draft","notes":"Exact curation-document quotation, not publisher quotation. Study references: [berberine-p18442638] Efficacy of berberine in patients with type 2 diabetes mellitus. (2008). https://pubmed.ncbi.nlm.nih.gov/18442638/ DOI: 10.1016/j.metabol.2008.01.013","relationship":"supports","weight":1.0,"link_notes":"","source":{"id":"9bb61e1d-e5cf-5b05-a9ca-409291f7a313","stable_key":"import-7484635e-cc8f-5cd6-a978-6dc5775a7db5","title":"Berberine: metabolism, nutrient connections and drug interactions (2026-09-17)","document_type":"imported_text","citation_label":"AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text.","file_path":"","sha256":"2f376a035ae79c93e62e2ea4a8d5385643bf16553f108d12b6a80c89e6d41f4c","revision_id":"2a099429-1c4a-55be-aa2c-0565d08bda80","review_status":"unverified_draft","notes":""}}],"relations":[],"conflicts":[],"corrections":[],"research":null}