Added “Overview”: Saccharolytic fermentation is the microbial breakdown of carbohydrates (dietary fiber, resistant starch, host glycans) to produce short chain fatty acids (acetate, propionate, butyrate) and gases (H₂,…
Added “Overview”: Saccharolytic fermentation is the microbial breakdown of carbohydrates (dietary fiber, resistant starch, host glycans) to produce short chain fatty acids (acetate, propionate, butyrate) and gases (H₂,… Revised “The Saccharolytic-Proteolytic Balance”: changed “The balance between saccharolytic and proteolytic fermentation is determined by substrate availability: | Factor | Favors Saccharolytic | Favors Proteolytic |…” to “| Feature | Saccharolytic | Proteolytic | |---------|--------------|-------------| | Substrate | Fiber, resistant starch | Protein, amino acids | | Products | SCFAs (beneficial) | H₂S, ammonia,…”. Revised “Cross-References”: changed “- fermentative metabolism -- comprehensive coverage of both saccharolytic and proteolytic modes - butyrate -- primary beneficial output of saccharolytic fermentation - short chain fatty acids -- SCFA…” to “- short chain fatty acids — products of saccharolytic fermentation - dietary fiber — primary substrate - acetate — most abundant saccharolytic product - butyrate — most clinically significant…”. Removed “Saccharolytic Fermentation”: Saccharolytic fermentation is the microbial breakdown of carbohydrates (dietary fiber, resistant starch, oligosaccharides) in the anaerobic colon, producing short-chain fatty acids (SCFAs) as primary… Removed “The Saccharolytic Process”: Dietary fiber / Resistant starch / Oligosaccharides │ ▼ (Primary fermenters: Ruminococcaceae, Bacteroides) Monosaccharides, oligomers │ ▼ (Secondary fermenters: Roseburia, Anaerostipes) Short-Chain… Removed “Key Saccharolytic Organisms”: | Organism | Role | Substrates | |----------|------|-----------| | ruminococcaceae (esp. R. bromii) | Primary starch degraders | Resistant starch, complex polysaccharides | | bacteroides… Removed “The Cross-Feeding Network”: Saccharolytic fermentation is not performed by individual species but by a cross-feeding consortium: 1. Primary degraders (Ruminococcaceae, Bacteroides) break down complex polysaccharides into smaller… Removed “SCFA Benefits”: The SCFAs produced by saccharolytic fermentation have systemic health effects: - butyrate: Colonocyte energy (70%); tight junction maintenance; Treg induction; HDAC inhibition; blood brain barrier… Removed “Chronic Kidney Disease”: The saccharolytic-to-proteolytic shift is a central feature of chronic kidney disease progression: - Fiber supplementation and low-protein diets shift fermentation from proteolytic (toxin-generating)… Removed “Metal-Driven Disruption”: Heavy metal exposure disrupts saccharolytic fermentation by: 1. Depleting metal-sensitive SCFA producers (Faecalibacterium, Roseburia, Lachnospiraceae). 2. Selecting for metal-resistant Proteobacteria… Removed “Open Questions”: - What is the optimal fiber type (soluble vs. insoluble, resistant starch) for maximizing saccharolytic shift in CKD ? - Can targeted prebiotics restore saccharolytic fermentation after heavy… Removed citations from “Chronic Kidney Disease”: wehedy 2022 human microbiome ckd double edged sword; carrero 2020 plant based diets ckd nature reviews. Removed citations from “Open Questions”: carrero 2020 plant based diets ckd nature reviews; wehedy 2022 human microbiome ckd double edged sword. Added citations to “The Saccharolytic-Proteolytic Balance”: ross 2024 diet gut microbiome interplay health disease; feitelson 2023 scfas cancer pathogenesis; hall 2020 ckd cats dietary fiber metabolome microbiome. Added references: ross-2024-diet-gut-microbiome-interplay-health-disease; feitelson-2023-scfas-cancer-pathogenesis; hall-2020-ckd-cats-dietary-fiber-metabolome-microbiome. Removed references: carrero-2020-plant-based-diets-ckd-nature-reviews; wehedy-2022-human-microbiome-ckd-double-edged-sword.
wiki/concepts/saccharolytic-fermentation.md