Effect of SF6-O2 (80/20) breathing on air bubbles in rat tissues

摘要: We studied the effect of SF6-O2 breathing on air bubbles injected into skeletal muscle, rat-tail tendon, anterior chamber eye, and spinal white matter. Decompression-induced nitrogen in adipose tissue were during (80/20). The results are compared with previous experiments using heliox (80/20) as medium. Bubbles eye chamber, matter found to behave a two-phased manner breathing. All would initially decrease rapidly size for period 10-80 min (depending tissue). Subsequently, stabilized decreased shrinking rate near zero. In matter, very small could disappear before development slow phase. tendon shrank at rather constant until they disappeared. During breathing, all disappeared least fast Just disappearance slowed. Comparison effects suggests that countercurrent gas exchange is work some tissues.