During phase-II studies monitored by Hoechst AG (Germany) and Daiichi (Japan) and phase-III/IV studies of Hoechst AG 577 adverse drug reactions were recorded among 13,717 patients treated with ofloxacin. Treatment was stopped in about 40% of the patients with adverse drug reactions. Most of the adverse reactions concerned the gastrointestinal tract. 124 adverse reactions concerned the central nervous system, mostly headache and sleep disturbances (n = 84). For the rare occurrences of other symptoms of the central nervous system, such as hallucinations (n = 1), nightmares (n = 1), confusion (n = 1), and depression (n = 2) the data are inadequate to appraise the relative importance of possible contributing factors.
Using purified elementary bodies of 14 Chlamydia trachomatis serovars in an in vitro assay, we compared the staining characteristics of six commercially available monoclonal antibody reagents used for direct immunofluorescent staining of patient smears. Considerable variation in the degree of brightness, consistency of staining, and specificity of the six reagents was found. Monoclonal antibodies against the major outer membrane proteins of C. trachomatis produced brighter fluorescence, more consistent elementary body morphology, and less nonspecific staining than did monoclonal antibodies directed against chlamydial lipopolysaccharide.
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