Rule 15 Mention Density Gap Report — 2026 04 22

Scan date: 2026-04-22 Method: grep across all wiki/ files (excluding scripts/), cross-referenced against existing page slugs.

CRITICAL GAPS (50+ files, no page) — Auto-create stubs immediately

TermFilesTypePriority
tight-junction221conceptBarrier integrity mechanism — ZO-1, claudin, occludin
Th17 (+ Treg)157conceptTh17/Treg balance — central immune concept across all signatures
Klebsiella (genus)141entity/microbeK. pneumoniae species exists, but no genus page
synbiotic101concept/interventionProbiotic + prebiotic combination
claudin84conceptTight junction protein family
competitive-exclusion74conceptEcological mechanism
occludin70conceptTight junction protein
statin66concept/interventionDrug class with microbiome effects
cross-feeding55conceptMetabolic cooperation between microbes

Already have pages (confirmed): type-2-diabetes, metabolic-syndrome, insulin-resistance, antimicrobial-resistance, NEC, long-covid, celiac-disease, HIV (as entity? — check)

HIGH GAPS (20-49 files, no page)

TermFilesType
periodontitis45entity/disease
cortisol45concept
colonization-resistance37concept
Prevotella copri37entity/microbe (exists)
Ruminococcus gnavus35entity/microbe (exists)
gestational-diabetes33entity/disease
Bifidobacterium longum33entity/microbe (exists)
chronic-fatigue28entity/disease (CFS page exists?)
sepsis27entity/disease
L. rhamnosus26entity/microbe (exists)
horizontal-gene-transfer25concept (exists)
preterm-birth24concept/entity
L. crispatus24entity/microbe (exists)
hepatitis21entity/disease

MISSING IMMUNE MEDIATOR PAGES

TermFilesNotes
IL-1beta~40+Third member of inflammatory triad after IL-6 and TNF-alpha
IL-8~30+Neutrophil chemokine
IL-10~35+Anti-inflammatory cytokine
IL-17~25+Th17 signature cytokine
IFN-gamma~30+Th1 cytokine; drives IDO/tryptophan shunting
Treg~40+Regulatory T cells (covered under Th17/Treg page)
BDNF~20+Brain-derived neurotrophic factor

MISSING METABOLITE/NUTRIENT PAGES

TermFiles
vitamin-D~30+
folate~15+
norepinephrine~15+

MISSING DISEASE/CONDITION PAGES

TermFiles
periodontitis45
gestational-diabetes33
sepsis27
preterm-birth24
hepatitis21
NAFLD~15+
preeclampsia~15+
gingivitis~10+

MISSING ORGANISM PAGES

TermFiles
Klebsiella (genus)141
L. plantarum17

ALREADY COVERED (confirmed existing pages)

type-2-diabetes, metabolic-syndrome, insulin-resistance, antimicrobial-resistance, NEC, long-covid, celiac-disease, biofilm, urease, beta-glucuronidase, prebiotics, quercetin, curcumin, metformin, zonulin, dopamine, melatonin, fibromyalgia, K. pneumoniae, horizontal-gene-transfer, P. copri, R. gnavus, B. longum, L. rhamnosus, L. crispatus, L. iners, eubacterium, collinsella, dorea, blautia, coprococcus, roseburia, veillonella, bilophila, sutterella, enterobacter, fusobacterium, treponema

Recommended Priority Order

  1. Th17/Treg (157 files) — single most important missing immune concept
  2. tight-junction (221 files) — barrier integrity umbrella (claudin + occludin can redirect here)
  3. Klebsiella genus (141 files) — species page exists but genus doesn't
  4. synbiotic (101 files)
  5. cortisol (45 files) — stress-microbiome axis
  6. periodontitis (45 files) — oral-systemic disease
  7. IL-1beta, IL-10, IFN-gamma — complete the cytokine page set
  8. competitive-exclusion, cross-feeding, colonization-resistance — core ecological concepts
  9. statin (66 files) — drug-microbiome interaction
  10. vitamin-D, BDNF — high-impact nutrients/factors