Morphological changes in lung tissue following the uptake of silver nanoparticles produced by biosynthesis in trained male Wistar rats

Therefore, this study aimed to investigate the amount of lung tissue damage in trained rats due to biological silver nanoparticles.

30 male rats were divided into 6 groups of healthy control, nano-silver, aerobic training, anaerobic training, nano-silver + aerobic training, nano-silver + anaerobic training. First, the training groups trained with the aerobic and anaerobic protocol for 10 weeks. Then, intraperitoneal injection of silver nanoparticles was injected 5 times per 10% of the  bodyweight of each rat, and 48 hours after the last injection, the rats were anesthetized and sampled. The samples were photographed and studied by hematoxylin-eosin staining with a light microscope.

The results showed that anaerobic exercise was significantly effective in weight loss in rats (p = 0.045). Also, oxygen consumption increased in all groups except the group receiving nano-silver compared to the control group (p = 0.000). Injection of biological nano-silver also caused inflammation and hyperemia in the lung tissue of untrained rats. However, in the anaerobic training group, inflammation and hyperemia were less than in the aerobic group.

It seems that injection of biologically produced silver nanoparticles causes structural complications in the lung tissue of male Wistar rats. Also, the results of the present study showed that anaerobic pre-conditioning is more beneficial than aerobic in reducing these effects.