title: Strenuous exercise simulating hepatic injury during vaccine trials.
abstract: Three healthy young men participating in phase 1 clinical vaccine trials had unexplained increases in their serum transaminase levels. Retrospective analysis indicated that these volunteers had participated in strenuous physical training 2-5 days prior to the noted elevations. The pattern of serum enzyme elevations, initially thought to be consistent with hepatic injury, were associated with parallel increases in creatine phosphokinase. One individual consented to repeat his exercise regimen. This was followed by a recurrence of the same pattern of increases in serum enzymes, including creatine phosphokinase. Thus, in trials where serum enzymes will be measured, it may be prudent to encourage subjects to refrain from increasing their activity above that which they normally perform.
authors.affiliation: Virology Division, US Army Medical Research Institute of Infectious Diseases, Fort Detrick, Frederick, MD 21702-5011.
authors.forename: F J
authors.initials: FJ
authors.lastname: Malinoski
mesh_terms: D000328:Adult; D000410:Alanine Transaminase / Q000097:blood; D001219:Aspartate Aminotransferases / Q000097:blood; D003402:Creatine Kinase / Q000097:blood; D006801:Humans; D007770:L-Lactate Dehydrogenase / Q000097:blood; D008107:Liver Diseases / Q000201:enzymology* / Q000209:etiology; D008297:Male; D005082:Physical Exertion / Q000502:physiology*; D012189:Retrospective Studies; D012206:Rhabdomyolysis / Q000201:enzymology* / Q000209:etiology; D014613:Vaccines, Attenuated / Q000627:therapeutic use*
chemical_list: D014613:Vaccines, Attenuated; D007770:L-Lactate Dehydrogenase; D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase; D003402:Creatine Kinase