[Effects of helium-neon laser on regeneration capacity of skeletal muscles of adult guinea pigs].

The muscle regeneration was studied in across-cut gastrocnemius muscle of adult guinea pigs. Both hind guinea pig legs were exposed to laser therapy (3-9 procedures for 5 min each) after operation. It was shown that laser therapy accelerated fibrin resorption and wound healing, decreased the muscle fiber degeneration, increased DNA and RNA synthesis in regenerating tissues, stimulated regenerative muscle fiber capacity.

[Effects of autotransplantation of minced muscle tissue and subsequent laser therapy on recovery of the muscle injured by irradiation].

A comparative histological investigation of posttraumatic regeneration in irradiated with 30 or 40 Gy and cross-sectioned musculus gastrocnemius of rats after autotransplantation into muscle defect of non-irradiated minced muscle tissue and laser therapy of hind limb in post-operative period was conducted. The obtained results showed that in irradiated with 30 Gy sectioned muscle (control series) the inflammatory reaction, resorption of fibrin in the area of trauma were inhibited and proliferation of muscle tissue from proximal and distal stump was suppressed. The rough connective tissue scar was formed.

[Effect of helium-neon laser rays on the process of postradiation recovery in skeletal muscle tissues].

Three series of experiments were conducted on the gastrocnemius muscle of rats. In the first series the entire muscles were autografted. In the second series autografting of the muscles was preceeded by irradiation of both hind limbs at a dose of 1000 R.

[Effect of helium-neon laser rays on the process of regeneration of irradiated transplanted skeletal muscle].

Three series of experiments on the gastrocnemius muscle of rats were conducted. In the first series entire muscles were autografted on both hind extremities. In the second series autografting of the muscles was preceded by irradiation of both hind extremities with 1000 R.