Diabetes Care, Vol 18, Issue 8 1195-1197, Copyright © 1995 by American Diabetes Association
Local reaction secondary to insulin injection. A potential role for latex antigens in insulin vials and syringes
A Towse, M O'Brien, FJ Twarog, J Braimon and AC Moses
Division of Endocrinology and Metabolism, Charles A. Dana Research Institute, Boston, Massachusetts, USA.
OBJECTIVE--To evaluate the possibility that latex antigens (natural rubber)
can contribute to or cause local sensitivity at insulin injection sites.
CASE--A subject with documented local cutaneous allergic reactions at the
site of insulin injections and with systemic latex allergy manifested as
anaphylaxis was tested with intradermal injections of insulin diluent from
two manufacturers and with two brands of insulin syringes. RESULTS--The
subject had high titer anti-latex Ige and elevated total levels of IgE in
serum. Anti-insulin IgG and IgE antibodies were absent. Erythema and wheals
occurred at the sites of intradermal injection of insulin therapy
components (insulin diluent and syringes) that contain natural latex rubber
but not at the site of injection of insulin therapy components that do not
contain natural latex rubber. CONCLUSIONS--Small quantities of natural
latex rubber antigens in insulin injection materials can be sufficient to
produce local cutaneous reactions at the site of insulin injection in
individuals highly allergic to natural latex rubber.