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BRS-X(Hormones) — Hormone Signalling & Regulation

BRS-X(Hormones-PM3) - Progesterone-Supportive Microbial Metabolism​

1. Definition​

Microbial and metabolite-linked support for progesterone-related hormonal stability, potentially involving butyrate-producing organisms such as Faecalibacterium prausnitzii and Roseburia.

2. Target Functional Outcome / Phenome​

These mappings are translational relationships, not single-mechanism outcome claims. Phenomes are emergent functional patterns supported by multiple interacting PMs across the BRAIN Framework.

Emotional Regulation — modulates
  • Confidence: low-medium
  • Evidence Level: mechanistic
  • Rationale: Butyrate-producing taxa may support endocrine and inflammatory contexts relevant to progesterone balance, but direct ADHD outcome evidence is limited.
  • Key References:
Stress Reactivity — indirect
  • Confidence: low-medium
  • Evidence Level: mechanistic
  • Rationale: Microbial SCFA context may indirectly influence stress-responsive endocrine-inflammatory tone intersecting progesterone-related stability.
  • Key References:
Sleep / Calming Tone — indirect
  • Confidence: low
  • Evidence Level: mechanistic
  • Rationale: Progesterone-linked calming tone may intersect with gut-derived inflammatory and SCFA signalling, but evidence for direct dietary single-mechanism effects remains limited.
  • Key References:

3. Intervention Breakdown​

Food-State Dominant

4. Functional Role​

↑ butyrate-producing ecological context; ↑ progesterone-supportive microbial milieu; ↓ inflammatory tone intersecting luteal-phase stability (interpretive)

5. Mechanistic Basis​

Summary​

Progesterone-related hormonal stability may be supported by butyrate-producing microbial guilds and SCFA signalling context, constrained by fermentable substrate delivery through BRS5(KC1). A systematic review links sex hormone levels to gut microbiota composition and diversity [1].

Microbial support for progesterone-related stability

(Butyrate-producing taxa)​

Faecalibacterium prausnitzii, Roseburia, and related butyrate-producing organisms may support anti-inflammatory and barrier-supportive contexts that intersect with endocrine stability → d'Afflitto et al. (2022) [1]

(Fermentable substrate dependence)​

Repeated fermentable fibre delivery supports the microbial ecology from which SCFA output and progesterone-supportive contexts may emerge.

(Boundaries of the mechanism)​

Oestrogen-specific estrobolome recycling belongs to BRS-X(Hormones-PM2). Insulin-linked reproductive integration belongs to BRS-X(Hormones-PM4).

(Integration within BRS-X(Hormones))​

This PM operationalises the progesterone-supportive microbial arm of BRS-X(Hormones-FM1), linked to BRS5-FM2-PM5 — SCFA Production & Signalling.

6. Connected BRS-X(Hormones) Mechanisms​

6.1 Overarching Functional Mechanism​

6.2 Connected Primary Mechanisms​

7. Connected Mechanisms​

8. Dietary Levers​

8.1 Direct Dietary Levers​

  • Fermentable fibre ← oats, legumes, vegetables, cooled starches
  • Prebiotic substrates ← diverse whole-plant patterns

8.2 Cofactors and Supporting Inputs​

  • fermentable fibre
  • butyrate context

8.3 KCs (Key Constraints)​

9. Lifestyle Levers​

Lifestyle
  • Sleep and stress recovery may intersect with luteal-phase and progesterone-related neuroendocrine context.
  • Repeated dietary fibre patterns matter more than short probiotic bursts.

10. References​

  1. d'Afflitto et al. (2022)