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Update data/rag/knowledge_base/Acidaminococcus/fermentans.json

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data/rag/knowledge_base/Acidaminococcus/fermentans.json CHANGED
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  {
 
 
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  "genus": "Acidaminococcus",
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  "species": "fermentans",
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- "full_name": "Acidaminococcus fermentans",
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- "clinical_significance": "A commensal anaerobe of the human gut, occasionally isolated from polymicrobial intra-abdominal infections, abscesses, and bacteremia. Typically low virulence but clinically relevant when gut mucosal barriers are compromised.",
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- "phenotype_profile": {
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- "morphology": "Gram-negative cocci in pairs or clusters; may appear Gram-variable.",
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- "culture": "Strict anaerobe. Small, translucent colonies on anaerobic blood agar. No growth in aerobic conditions. Non-pigmented.",
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- "biochemical": [
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- "Amino acid fermenter, especially glutamate (definitive trait)",
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- "Does not ferment carbohydrates",
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- "Catalase negative",
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- "Oxidase negative",
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- "Indole negative",
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- "ONPG negative",
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- "Does not grow in 6.5% NaCl",
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- "Produces volatile fatty acids such as acetate and butyrate"
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- ]
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  },
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- "differentiation": {
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- "from_close_species": [
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- "A. fermentans has strong glutamate fermentation, more robust than A. intestini.",
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- "A. intestini may show slightly different VFA profiles on gas chromatography.",
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- "Both differ from Veillonella by failing to metabolize lactate."
 
 
 
 
 
 
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  ],
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- "from_other_genera": [
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- "Strict amino acid fermentation (not lactate) differentiates from Veillonella.",
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- "Megasphaera is larger and may ferment some carbohydrates.",
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- "Anaerobic Gram-negative cocci exclude Neisseria and Moraxella which are aerobic."
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- ]
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  },
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- "confirmation_methods": [
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- "16S rRNA sequencing (most definitive)",
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- "MALDI-TOF MS",
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- "Glutamate fermentation profile",
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- "Gas chromatography of fermentation products"
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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  ],
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- "treatment_notes": "Generally susceptible to metronidazole and beta-lactams active against anaerobes. Clinical infections are typically polymicrobial.",
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- "notes": "Most commonly encountered Acidaminococcus species in human samples, though still overall rare.",
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- "references": [
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- "Manual of Clinical Microbiology, 12th Edition.",
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- "Studies on anaerobic Gram-negative cocci metabolism."
 
 
 
 
 
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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": "Acidaminococcus",
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  "species": "fermentans",
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+
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+ "overview": {
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+ "short": "Acidaminococcus fermentans is a Gram-negative, obligately anaerobic coccus that derives energy primarily from amino acid fermentation.",
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+ "clinical_context": "Commonly part of the normal gastrointestinal microbiota and occasionally recovered from polymicrobial anaerobic infections."
 
 
 
 
 
 
 
 
 
 
 
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  },
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+
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+ "expected_fields": {
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+ "Gram Stain": "Negative",
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+ "Shape": "Cocci",
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+ "Motility": "Negative",
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+ "Capsule": "Unknown",
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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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+ "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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+ "Convex"
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+ ],
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+ "Oxygen Requirement": "Obligate Anaerobe",
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+ "Growth Temperature": "35//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": "Negative",
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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": "Negative",
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+ "Esculin Hydrolysis": "Negative",
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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": "Negative",
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+ "Lactose Fermentation": "Negative",
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+ "Sucrose Fermentation": "Negative",
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+ "Maltose Fermentation": "Negative",
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+ "Mannitol Fermentation": "Negative",
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+ "Sorbitol Fermentation": "Negative",
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+ "Xylose Fermentation": "Negative",
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+ "Rhamnose Fermentation": "Negative",
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+ "Arabinose Fermentation": "Negative",
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+ "Raffinose Fermentation": "Negative",
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+ "Trehalose Fermentation": "Negative",
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+ "Inositol Fermentation": "Negative",
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+ "Gas Production": "Negative",
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+ "TSI Pattern": "K/K",
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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": "Amino Acid Fermentation",
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+ "value": "Positive",
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+ "importance": "high",
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+ "notes": "Primary metabolic pathway distinguishing Acidaminococcus species."
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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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+ "genus": "Veillonella",
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+ "reason": "Both are anaerobic Gram-negative cocci isolated from similar sites."
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+ }
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+ ],
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+
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+ "when_to_question_identification": [
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+ "Carbohydrate fermentation suggests Veillonella.",
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+ "Aerobic growth is inconsistent with A. fermentans.",
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+ "Rod-shaped morphology excludes this species."
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  ],
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+
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+ "recommended_next_tests": [
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+ {
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+ "test": "Anaerobic growth verification",
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+ "reason": "Confirms obligate anaerobic metabolism."
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+ },
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+ {
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+ "test": "MALDI-TOF MS",
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+ "reason": "Reliable identification due to limited biochemical activity."
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+ }
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  ]
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+ }