ArticleHealth science reports2026
Hydrogen Sulfide Delivery in Sulfurous Thermal Waters: Saturnia as a Translational Model for Gasotransmitter Pharmacology-A Narrative Review.
Article in Health science reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
7 authors.
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Abstract
Background: Hydrogen sulfide (H2S) is an endogenous gasotransmitter regulating redox balance, inflammation, and vascular tone, but reproducing the spatial and kinetic features of endogenous production remains challenging. We examine sulfurous thermal waters as natural contexts of sustained H2S exposure, using the Saturnia springs (Tuscany, Italy) as a representative natural analog to discuss geochemical determinants of sulfide stability, the bioglea microbial interface, and the clinical evidence base. Methods: We conducted a structured, non-systematic literature search of PubMed, Scopus, and Web of Science (inception to March 2026) using predefined sulfide-, balneology-, and Saturnia-related terms. Experimental, observational, geochemical, and review sources were narratively synthesized and critically appraised; no meta-analysis or formal quality scoring was performed, consistent with the hypothesis-generating scope. Results: Saturnia waters show elevated, relatively stable sulfide (≈14 mg/L; historical range ≈13-20 mg/L) within a buffered carbonate matrix. At pH ~6.85, a transparent Henderson-Hasselbalch calculation indicates that roughly 45%-55% of total dissolved sulfide is present as undissociated molecular H Conclusions: Rather than a validated translational model, Saturnia offers an informative, hypothesis-generating natural analog for sustained H2S exposure in complex aqueous matrices, from which generalizable design principles and translational priorities-including route-specific pharmacokinetics and standardized exposure reporting-can be abstracted for gasotransmitter delivery.
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