The study failed to show a stimulating effect of hyperbaric oxygen on growth and metastatic spreading of sarcoma 37 transplanted subcutaneously or intravenously to female SHR mice, melanoma B16 intramuscularly transplanted to female C57/Bl mice and methylcholanthrene-induced tumors in female albino noninbred rats. An insignificant inhibitory effect of hyperbaric oxygen on transplantable tumor growth and development of inducible ones in experimental animals was observed.
Frid, Sapov, Katyshev, Lupanov, Rudakov, Semiachkina, Shul’ga, , (1989). [Effects of hyperbaric oxygenation on tumor growth]. Voprosy onkologii, 1989 ;35(8):970-3. https://www.ncbi.nlm.nih.gov/pubmed/2800446