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The glossary contains definitions and explanations of industry-specific and scientific terminology used within Extractopedia. Click one of the letters above to find terms beginning with that letter.

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HSA

HSA, Human Serum Albumin. A chemically-fractioned component of blood that may be added to diluents to increase allergen stability. The albumin coats the interior wall of the glass vial, preventing allergenic proteins from adhering. Additionally, albumin stabilizes protein aggregation, thereby promoting protein stability. This stabilizing diluent can be used to maintain potency when dilutions are performed.

Histamine

A chemical mediator released by the mast cells during the immune response. Histamine can stimulate an immediate hypersensitivity reaction upon allergen exposure. Antihistamines, common allergy medications, target this immune modulator in an effort to alleviate symptoms.