PMID- 10617214 OWN - NLM STAT- MEDLINE DCOM- 20000330 LR - 20190721 IS - 0105-1873 (Print) IS - 0105-1873 (Linking) VI - 41 IP - 6 DP - 1999 Dec TI - Sensitizing potential in mice, guinea pig and man of the preservative Euxyl K 400 and its ingredient methyldibromo glutaronitrile. PG - 330-8 AB - The allergenicity of the preservative Euxyl K 400 and its principal allergen methyldibromo glutaronitrile (MDBGN) (1,2-dibromo-2,4-dicyanobutane) was investigated using 3 animal models; in mice, the local lymph node assay (LLNA) and in guinea pigs, the guinea pig maximization test (GPMT) and the cumulative contact enhancement test (CCET) with a dose-response protocol included. Previous attempts to define the sensitization capacity of these chemicals have given conflicting results. For comparison, the frequency and causes of positive patch test reactions to Euxyl K 400 and MDBGN were studied in patients referred to an occupational dermatology clinic. This investigation showed that Euxyl K 400 and MDBGN can give rise to contact allergy in man and that the relevant cases found mainly had similar exposure as non-occupational cases. A contact allergenic potential could be detected for MDBGN in 2 animal models, i.e., the CCET and the LLNA, and also for Euxyl K 400 in the LLNA. However, statistical analysis of the results from the GPMT with MDBGN failed to detect the sensitizing potential of this particular allergen. The results indicate that to be able to detect the allergenic potential of Euxyl K 400 and MDBGN, a predictive test method with multiple topical applications at induction is required. It is therefore important that an investigator is aware of the possibility of using various predictive test models for investigation of potential contact allergens. FAU - Wahlkvist, H AU - Wahlkvist H AD - Dermatology Division, National Institute for Working Life, Stockholm, Sweden. FAU - Boman, A AU - Boman A FAU - Montelius, J AU - Montelius J FAU - Wahlberg, J E AU - Wahlberg JE LA - eng PT - Journal Article PL - England TA - Contact Dermatitis JT - Contact dermatitis JID - 7604950 RN - 0 (Allergens) RN - 0 (Nitriles) RN - 0 (Preservatives, Pharmaceutical) RN - YX089CPS05 (1,2-dibromo-2,4-dicyanobutane) SB - IM MH - Allergens/*adverse effects MH - Animals MH - Dermatitis, Allergic Contact/*etiology MH - Dermatitis, Occupational/*etiology MH - Disease Models, Animal MH - Dose-Response Relationship, Drug MH - Female MH - Guinea Pigs MH - Humans MH - Lymph Nodes/pathology MH - Mice MH - Mice, Inbred CBA MH - Nitriles/*adverse effects MH - Patch Tests MH - Preservatives, Pharmaceutical/*adverse effects MH - Random Allocation EDAT- 2000/01/05 09:00 MHDA- 2000/04/01 09:00 CRDT- 2000/01/05 09:00 PHST- 2000/01/05 09:00 [pubmed] PHST- 2000/04/01 09:00 [medline] PHST- 2000/01/05 09:00 [entrez] AID - 10.1111/j.1600-0536.1999.tb06182.x [doi] PST - ppublish SO - Contact Dermatitis. 1999 Dec;41(6):330-8. doi: 10.1111/j.1600-0536.1999.tb06182.x.