title: Normal skin test responses in chronic marijuana users.
abstract: The cell-mediated immunity of 22 chronic marijuana smokers showed no difference from that of normal controls when evaluated by in vivo skin testing with 2,4-dinitrochlorobenzene. However, a significant difference was seen between these chronic marijuana users, all of whom could be sensitized to 2,4-dinitro-chlorobenzene, and age-matched cancer patients, who showed a decreased capacity to be sensitized.
mesh_terms: D000328:Adult; D002188:Cannabis; D002722:Chlorobenzenes; D006801:Humans; D006968:Hypersensitivity, Delayed; D007111:Immunity, Cellular; D008297:Male; D009574:Nitro Compounds; D012882:Skin Tests; D019966:Substance-Related Disorders
chemical_list: D002722:Chlorobenzenes; D009574:Nitro Compounds