Grayanotoxins
Grayanotoxins are a group of closely related toxins found in rhododendrons and other plants of the family Ericaceae. They can affect the sodium channels in cell membranes.
History[edit | edit source]
The term "grayanotoxin" was coined in the 1950s, after the American botanist Asa Gray. Grayanotoxins were first isolated and identified in the 1930s.
Sources[edit | edit source]
Grayanotoxins are found in the leaves, flowers, and nectar of some species of the plant family Ericaceae, including Rhododendron, Pieris, Agarista, Leucothoe, Kalmia, Phyllodoce, Menziesia, Ledum, and Zenobia.
Effects[edit | edit source]
Grayanotoxins bind to sodium channels in cell membranes, preventing the normal flow of sodium ions and causing a range of symptoms. These can include nausea, vomiting, salivation, headache, blurred vision, and in severe cases, loss of consciousness, convulsions, and death.
Treatment[edit | edit source]
Treatment for grayanotoxin poisoning is primarily supportive, with intravenous fluids and medications to control symptoms. In severe cases, hospitalization may be required.
See also[edit | edit source]
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