Effects of acute inflammation on platelet indices: An experimental study
Keywords:acute inflammation, blood platelets, carrageenan, Mean platelet volume, rats
Background and objective: It is well known that inflammation may affect the platelets. However, there are inconsistencies between the results of observational studies investigating changes in platelet indices in inflammatory conditions. This study aimed to investigate the possible effects of acute inflammation on platelet indices in plantar inflammation model in rats.
Methods: A total of 10 rats, 5 in each group, were used in the study. Lambda-carrageenan and saline were applied subcutaneously to the right hind paw of the rats in the inflammation group and in the control group, respectively. Six hours after the administration, blood samples were taken from femoral arteries and femoral veins, and platelet indices were measured by a hematology analyzer. In addition, plantar tissue samples belonging to the control and inflammation groups were evaluated histopathologically.
Results: On histopathological examination, no pathological condition was observed in the control group, while there were changes consistent with acute inflammation in the lambda-carrageenan-injected group. There was no significant difference in terms of platelet indices between both the arterial and vein samples and between the control and inflammation groups.
Conclusions: Our results suggest that platelet indices cannot be used in the diagnosis of acute inflammatory conditions. However, in our opinion, these findings must not be interpreted as that acute inflammation does not affect platelet number and volume. Instead, we believe that it may be more appropriate to say that acute inflammation does not produce a quantitatively significant change in platelet indices due to the combination of the opposite effects.
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