PubMed Health⌕ Search

Biomedical subjects

R E Orth

Publications and source records attributed to R E Orth.

7 recordsLinked to original sources

Survival of pleomorphic sarcoma-37 transplanted virgin female DBA/2J mice: effects produced by high blood glucose levels alone and in combination with drugs.

Procedures for producing, monitoring, and maintaining 3-hr 400-500-mg% whole blood glucose levels in Sarcoma-37 (S-37) transplanted virgin female inbred DBA/2J mice are described. Aqueous infused 40% (w/v) dextrose was evaluated as a potential therapeutic factor. The effects of procedural variations on treatment survival and longevity are discussed. One hundred percent infusion safety and 25% increased longevity over nontreated transplanted mice were achieved. Doxorubicin and/or dacarbazine were also evaluated when administered prior to the dextrose infusion. Doxorubicin followed by intravenous dextrose increased survivor longevity by 37%, but this combination was unsafe at the drug dosages employed. A large dose of dacarbazine was safe and effective alone but unsafe when given prior to the infusion, although the survivors lived 29% longer than the untreated transplanted controls. Both drugs were marginally effective, but safe, when given together. When given together prior to the infusion, only 87% survived the treatment. The survivors lived 6 days longer than the controls.

Animals↗

Survival of pleomorphic sarcoma-37 transplanted virgin female DBA/2J mice: hyperthermia and hyperglycemia, alone and in combination with drugs.

Sarcoma-37 (S-37) transplanted DBA/2J mice were submitted to a controlled whole body hyperglycemic-hyperthermic ("double attack") treatment. A single exposure to the 3-hr 400-500-mg% blood glucose level coupled with 1 hr of whole body 40.0 degrees warming was safe and extended longevity by 40% over the nontreated controls. This increase suggests that additive or potentiated effects follow the two-parameter procedure. The treatment safety and resultant increased longevity were not enhanced by single-dose chemotherapy with doxorubicin and/or dacarbazine.

Animals↗