Secretin

Overview

Secretin is a 27-amino-acid gastrointestinal hormone with a notable place in the history of physiology, as it was the first substance to be described as a hormone. That long research pedigree has kept it a well-characterized reference peptide in digestive-physiology work.

In research models, secretin has been studied for its association with pancreatic bicarbonate secretion, fluid regulation, and broader gut signaling through the secretin receptor. Investigators examining digestive and endocrine physiology have used it as a defined research material.

For a metabolic and gastrointestinal catalog, secretin is notable both as a historical benchmark and as a still-active tool in gut-signaling research. Whether these mechanisms translate the same way across female physiology remains an open research question; our evidence review tracks how many of the underlying studies included women.

Summary

Secretin is a gut hormone that regulates pancreatic and biliary secretion; its synthetic form is FDA-approved as a diagnostic agent (pancreatic function and gastrinoma testing). Clinical use includes women, but is not analyzed for female-specific therapeutic outcomes.

Evidence in women

Mechanism

Activates the secretin receptor to stimulate bicarbonate-rich secretion from the pancreas and bile ducts.

Reported dosing & routes

Contraindications: acute pancreatitis (until an episode resolves)

Side effects

Reported in the research literature. Sex-specific incidence has not been separately analysed in the available records.

Secretin reconstitution calculator

Enter this vial's amount, the bacteriostatic water you add, and a target amount to get the concentration and the U-100 syringe units to draw. Handling arithmetic for research use, not a dose recommendation.

Frequently asked questions

Answers drawn only from Secretin's research facts and, where reviewed, its sex-disaggregated evidence. Nothing here is medical advice, dosing, or a claim of safety or efficacy.