The Study
Role of histamine release in prostaglandin synthesis in anaphylactic shock in guinea-pig
This study saw that when guinea pigs had a bad allergic reaction, their bodies released histamine and also made more prostaglandins at the same time. But it didn't prove that histamine caused the prostaglandins — they just happened together.
Analysis score
Maximum 58 for a case-control study.
Where the score came from
When guinea pigs have a severe allergic reaction, their body releases histamine, which then causes other chemicals called prostaglandins to be made — some of these make the airways tighten.
Where does this study sit?
Reviews of RCTs (Meta-analyses)
Max 100Randomized Trials
Max 90Reviews of Cohort Studies
Max 85Cohort Studies
Max 72Reviews of Case-Control Studies
Max 63Case-Control Studies
Max 58Cross-Sectional & Case Series
Max 50Expert Opinion
Max 514 / 100
Quality score
Researchers compare people who have a condition (cases) with similar people who do not (controls), looking back in time for differences in exposure. Useful but more prone to bias.
Key takeaways
Summary
Based on the study abstract and findings.
- 1Yes — this helps explain why allergic reactions cause breathing trouble: histamine triggers chemicals that narrow airways.
- 2Histamine release happened at the same time as PGF2α production, and other prostaglandins (PGE and PGF) appeared afterward.
Score breakdown, methodology, conflicts of interest, evidence analysis & raw study data
Publication
Journal
Agents and Actions
Year
1977
Authors
J. Parrot, F. Dray, G. Allouche, P. Canu, M. Santais, F. Ruff
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.