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Update data/rag/knowledge_base/Eubacterium/rectale.json

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data/rag/knowledge_base/Eubacterium/rectale.json CHANGED
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  {
 
 
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  "genus": "Eubacterium",
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  "species": "rectale",
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- "full_name": "Eubacterium rectale",
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- "clinical_significance": "A dominant human gut commensal and one of the major butyrate producers. Promotes gut epithelial health, modulates inflammation, and contributes to energy metabolism. Rarely implicated in infection, but reduced levels are associated with dysbiosis, IBD, metabolic disorders, and colorectal cancer risk.",
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- "phenotype_profile": {
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- "morphology": "Gram-variable short rods; non-motile; non-spore-forming.",
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- "culture": "Strict anaerobe; slow-growing; requires enriched media. Colonies often smooth and pale.",
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- "biochemical": [
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- "Catalase negative",
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- "Indole negative",
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- "Non-motile",
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- "Strong butyrate production (defining trait)",
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- "Ferments carbohydrates; produces acetate as secondary SCFA",
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- "No H2S production"
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- ]
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  },
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- "differentiation": {
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- "from close species": [
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- "High-level butyrate production differentiates from E. limosum and E. ventriosum.",
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- "Common gut commensal vs E. limosum (more environmental).",
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- "Phylogenetically closer to Agathobacter but retains classical biochemical pattern."
 
 
 
 
 
 
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  ],
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- "from other genera": [
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- "Butyrate-dominant fermentation excludes many Clostridium spp.",
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- "Gram-positive anaerobic rods unlike Bacteroides (Gram-negative)."
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- ]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  },
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- "virulence_factors": [
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- "No traditional virulence factors; beneficial SCFA production supports mucosal integrity.",
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- "Anti-inflammatory metabolic pathways."
 
 
 
 
 
 
 
 
 
 
 
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  ],
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- "confirmation_methods": [
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- "MALDI-TOF MS",
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- "SCFA profiling (butyrate-dominant)",
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- "16S rRNA sequencing"
 
 
 
 
 
 
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  ],
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- "treatment_notes": [
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- "Not typically a pathogen; its presence is beneficial.",
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- "Absence in stool microbiome panels may indicate dysbiosis."
 
 
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  ],
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- "notes": "One of the key organisms defining a healthy butyrate-rich gut microbiome.",
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- "references": [
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- "Human gut microbiome and SCFA research",
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- "Eubacterium rectale metabolic pathway studies"
 
 
 
 
 
 
 
 
 
 
 
 
 
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  ]
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- }
 
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  {
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+ "schema_version": "1.0",
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+ "level": "species",
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  "genus": "Eubacterium",
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  "species": "rectale",
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+
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+ "overview": {
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+ "short": "Eubacterium rectale is a Gram-positive, obligately anaerobic rod and a major butyrate-producing bacterium of the human gut microbiota.",
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+ "clinical_context": "Primarily a commensal organism; rarely implicated in clinical infections but may appear in polymicrobial anaerobic cultures."
 
 
 
 
 
 
 
 
 
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  },
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+
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+ "expected_fields": {
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+ "Gram Stain": "Positive",
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+ "Shape": "Rods",
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+ "Motility": "Negative",
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+ "Capsule": "Variable",
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+ "Spore Formation": "Negative",
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+ "Haemolysis": "Negative",
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+ "Haemolysis Type": "None",
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+ "Media Grown On": [
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+ "Anaerobic Blood Agar"
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  ],
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+ "Colony Morphology": [
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+ "Small",
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+ "Grey",
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+ "Smooth"
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+ ],
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+ "Oxygen Requirement": "Anaerobic",
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+ "Growth Temperature": "30//37",
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+ "Catalase": "Negative",
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+ "Oxidase": "Negative",
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+ "Indole": "Negative",
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+ "Urease": "Negative",
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+ "Citrate": "Negative",
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+ "Methyl Red": "Variable",
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+ "VP": "Negative",
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+ "H2S": "Negative",
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+ "DNase": "Negative",
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+ "ONPG": "Negative",
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+ "Coagulase": "Negative",
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+ "Gelatin Hydrolysis": "Variable",
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+ "Esculin Hydrolysis": "Variable",
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+ "Nitrate Reduction": "Negative",
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+ "NaCl Tolerant (>=6%)": "Negative",
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+ "Lipase Test": "Negative",
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+ "Lysine Decarboxylase": "Negative",
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+ "Ornithine Decarboxylase": "Negative",
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+ "Ornitihine Decarboxylase": "Negative",
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+ "Arginine dihydrolase": "Negative",
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+ "Glucose Fermentation": "Positive",
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+ "Lactose Fermentation": "Variable",
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+ "Sucrose Fermentation": "Variable",
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+ "Maltose Fermentation": "Positive",
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+ "Mannitol Fermentation": "Variable",
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+ "Sorbitol Fermentation": "Negative",
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+ "Xylose Fermentation": "Variable",
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+ "Rhamnose Fermentation": "Negative",
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+ "Arabinose Fermentation": "Variable",
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+ "Raffinose Fermentation": "Negative",
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+ "Trehalose Fermentation": "Variable",
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+ "Inositol Fermentation": "Negative",
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+ "Gas Production": "Negative",
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+ "TSI Pattern": "Unknown",
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+ "Colony Pattern": "Unknown",
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+ "Pigment": "None",
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+ "Motility Type": "None"
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  },
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+
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+ "species_markers": [
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+ {
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+ "field": "Nitrate Reduction",
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+ "value": "Negative",
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+ "importance": "medium",
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+ "notes": "Helps differentiate E. rectale from nitrate-reducing Eubacterium species."
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+ },
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+ {
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+ "field": "Gas Production",
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+ "value": "Negative",
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+ "importance": "low",
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+ "notes": "Typically does not produce gas during carbohydrate fermentation."
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+ }
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  ],
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+
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+ "common_confusions": [
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+ {
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+ "species": "Eubacterium limosum",
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+ "reason": "Overlapping anaerobic growth and fermentation profiles."
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+ },
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+ {
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+ "genus": "Clostridium",
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+ "reason": "Shared anaerobic Gram-positive rod morphology."
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+ }
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  ],
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+
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+ "when_to_question_identification": [
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+ "Nitrate reduction positivity suggests Eubacterium limosum or another anaerobe.",
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+ "Gas production argues against Eubacterium rectale.",
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+ "Spore formation excludes Eubacterium."
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  ],
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+
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+ "recommended_next_tests": [
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+ {
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+ "test": "Nitrate reduction",
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+ "reason": "Useful discriminator within the genus.",
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+ "api_kit": "API Rapid ID 32A"
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+ },
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+ {
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+ "test": "Anaerobic biochemical profiling",
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+ "reason": "Supports species-level differentiation.",
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+ "api_kit": "API Rapid ID 32A"
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+ },
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+ {
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+ "test": "MALDI-TOF MS",
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+ "reason": "Gold standard for accurate identification.",
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+ "api_kit": "Not applicable"
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+ }
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  ]
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+ }