[Studies on the toxicity of polymer of glycolide and lactide(PLGA) and the anti-fertility effect of levonorgestrel(LNG)].


PLGA(9:1), a chemical degraded from biomaterials, has been subjected to the tests of acute toxicity, irritations on conjunctiva and muscle, haemolysis in vitro and allergic reaction of mice and rats. The anti-fertility effect of PLGA-LNG microphere composite on the same animals also has been tested. The studies demonstrated that PLGA had fine biological… (More)


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