gastriinin
Gastriinin is a name that occasionally appears in discussions of gastric physiology, but there is no widely recognized substance by this exact name in contemporary biomedical literature. No verified chemical identity, structure, or biological activity has been established in peer-reviewed sources.
The absence of validated data is reflected by a lack of entries in major public databases; there
In fictional or speculative contexts, gastriinin might be described as a peptide related to gastric function,
If reliable evidence about gastriinin emerges, the article would be updated with details on its chemical composition,