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Related Experiment Video

Updated: Jul 20, 2026

Histology Basics and Cell Death Detection in Honeybee Tissue

Histology Basics and Cell Death Detection in Honeybee Tissue

Published on: July 7, 2022

Mad honey poisoning.

Abdulkadir Gunduz¹, Suleyman Turedi, Hukum Uzun

¹Department of Emergency Medicine, Karadeniz Technical University Faculty of Medicine, 61080 Trabzon, Turkey. gunduzkadir@hotmail.com

The American Journal of Emergency Medicine

|August 30, 2006

Summary

Grayanotoxin intoxication from "mad honey" causes cardiovascular issues like hypotension and bradycardia. Most patients recover within hours, but severe cases may require pacemakers.

Area of Science:

Cardiology
Toxicology
Pharmacology

Background:

Grayanotoxin intoxication is a significant health concern in Turkey's Black Sea region, primarily due to consumption of "mad honey."
This honey is produced by bees foraging on rhododendron flowers, containing toxic grayanotoxins.
Intoxication can manifest with varying severity, from mild symptoms to life-threatening cardiac events.

Observation:

This case series details eight patients (6 women, 2 men, aged 35-75) presenting with grayanotoxin intoxication.
All patients exhibited hypotension; cardiac arrhythmias included sinus bradycardia (4), nodal rhythm (3), and complete atrioventricular block (AVB) (1).

Findings:

Cardiovascular parameters (heart rate, blood pressure) normalized within 2-6 hours in most patients, excluding the one with complete AVB.

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One patient with AVB required a temporary pacemaker before discharge.

The majority of patients were discharged from the emergency department after a 6-hour observation period.

Implications:

Grayanotoxin intoxication poses a considerable risk to cardiovascular and respiratory systems.
Prompt recognition and management are crucial for favorable outcomes, even in severe cases.
Understanding the regional prevalence and clinical presentation aids in public health awareness and medical preparedness.