What is behind Allergies & Histamine
Made from histidine, released by mast cells, and also a neurotransmitter and gastric acid signal. Evidence A — Human trial evidence.
The master inflammatory switch — indispensable to defend against threat, corrosive when it never stands down. Evidence B — Preclinical.
The transcription factor that commands the body's own antioxidant and detoxification arsenal. Evidence A — Human trial evidence.
Airway reactivity â the type-2 inflammatory response behind allergic breathing. A possible sign reversal: the same immune slant may increase resistance to some viruses while worsening allergy.
Evidence on these pathways
Histamine → Chronic Rhinosinusitis. “Histamine can induce the production of NF-κB controlled-chemokine CXCL8 by nasal fibroblasts, which supports a role for histamine in upper airway inflammatory diseases.” — Histamine Induced Production of Chemokine CXCL8 Through H1R/PLC and NF-κB Signaling Pathways in Nasal Fibroblasts. Journal of Rhinology, 2020, vol 27, no 2, pages 95-101. doi:10.18787/jr.2019.00302
NF-κB → CD38 NADase. “Regulation of CD38 expression in HASM cells involves the transcription factor NF-κB, and glucocorticoids inhibit this expression through NF-κB-dependent and -independent mechanisms.” — Regulation of the cd38 promoter in human airway smooth muscle cells by TNF-α and dexamethasone. Respiratory Research, 2008, vol 9, 26. doi:10.1186/1465-9921-9-26
NF-κB → COX-2 Induction. “Moreover, the nuclear factor kappa B (NF-κB) inhibitor BAY11‐7085 or the TLR4 neutralizing antibody markedly blocked PM2.5-induced IL-6 and COX-2 expression.” — PM2.5 exposure upregulates pro-inflammatory protein expression in human microglial cells via oxidant stress and TLR4/NF-κB pathway. Ecotoxicology and Environmental Safety, 2024, vol 277, article 116386. doi:10.1016/j.ecoenv.2024.116386
NF-κB → Kynurenine Pathway. “Treatment of vaccinated DCs with pharmacological NF-κB inhibitors ACHP or DHMEQ significantly inhibited IDO1 biosynthesis, suggesting a role for NF-κB signaling in vaccine up-regulation of dendritic cell IDO1.” — Induction of Indoleamine 2, 3-Dioxygenase in Human Dendritic Cells by a Cholera Toxin B Subunit—Proinsulin Vaccine. PLoS ONE, 2015, volume 10, e0118562. doi:10.1371/journal.pone.0118562
Formulas that act on these pathways
Acts on 4 of these pathways: Histamine, NF-κB, Nrf2, Airway Reactivity.
Acts on 2 of these pathways: NF-κB, Nrf2.
What this page does not claim
This page names the pathways involved and the published evidence on each. It does not claim that any formula treats, cures or prevents Allergies & Histamine. A pathway opens here only on graded, published evidence, under a standard fixed before the evidence was gathered, and every figure above carries its grade.
These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.