... (indicative of nonviable cells) versus stain-excluding cells were countedin a hemocytometer. Then the percentage of viable cellswas calculated as follows: viable cells (%) = (total number of viable ... USA).Assessment of the results was performed at 48 and 72 hfollowing treatment. Observations included cell morphol-ogy (viability, and rates of mitotis and apoptosis),hyaluronan (HA) and glycosaminoglycan ... Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand, 4Department of Orthopedics, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand and 5Department of Animal...