Pliss G B, Eliseev V V
Biull Eksp Biol Med. 1978 Sep;86(9):353-6.
Plastic plates implanted subcutaneously to rats induced sarcoma in 11 of 27 animals (40.7%) which survived up to the time of the first tumour appearance (12.3 months). No tumours were revealed at the sites of the plastic powder implantation. Following long-term administration of DL-tryptophan tumours developed around the plates in 6 to 19 rats (31.5%) in 13.8 months, and around the powder in 2 of 5 rats which survived for 18.7 months. Some animals of this group displayed preneoplastic changes around the powder clumps.
皮下植入大鼠的塑料板在27只存活至首次出现肿瘤时（12.3个月）的动物中有11只（40.7%）诱发了肉瘤。在塑料粉植入部位未发现肿瘤。长期给予DL-色氨酸后，在13.8个月时，6至19只大鼠（31.5%）的塑料板周围出现了肿瘤，在存活18.7个月的5只大鼠中有2只在塑料粉周围出现了肿瘤。该组的一些动物在粉块周围出现了肿瘤前期变化。
