HOHorse
Acute phase protein concentrations following serial procaine penicillin G injections in horses
In six healthy horses, twice-daily intramuscular injections of procaine penicillin G over five days lifted creatine kinase, aspartate aminotransferase and fibrinogen above baseline; serum amyloid A was above it on one single measurement day only, and haptoglobin did not change. The authors warn against misinterpretation, but themselves point to the very small animal numbers and the missing control group.