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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Immunologic and biochemical evaluation of the potency of whole insect body extracts.

Recent studies have indicated that currently available whole body extracts have little potency and are ineffective for diagnosis and treatment of stinging insect allergy. Pure venom is a potent effective allergen but is difficult to obtain in sufficient quantities from all Hymenoptera species. In these studies, an attempt was made to prepare a potent whole body extract. Whole bee body extracts were prepared with different extraction periods and at cold and room temperatures. Potency was examined biochemically by measurements of phospholipase A (PLA) activity and immunologically by PLA and bee venom radioallergosorbent test (RAST) inhibition experiments and gel diffusion studies with the use of rabbit antisera. All extracts prepared in the laboratory had some potency, indicating that it is possible to make a whole body extract containing small quantities of PLA or bee venom. However, the potency of these extracts was minimal as compared with bee venom. Three commercial extracts were almost devoid of detectable immunologic activity. While further attempts may be made to prepare a potent whole body insect extract, these results suggest that it is necessary to obtain venom in relatively pure form for the diagnosis and treatment of stinging insect allergy.[1]

References

  1. Immunologic and biochemical evaluation of the potency of whole insect body extracts. Wypych, J.I., Reisman, R.E., Elliott, W.B., Steger, R.J., Arbesman, C.E. J. Allergy Clin. Immunol. (1979) [Pubmed]
 
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