Fig. 1From: The effects of BMMSC treatment on lung tissue degeneration in elderly macaquesDifferences in appearance and lung tissue structure between the young and elderly macaques. a Age-related changes in appearance between the young control group and the elderly model group. b Comparison of the lung tissue structure between the young control group and the elderly model group (n = 5, n is for the number of animals analyzed. ****P < 0.0001 when compared with the young control group). c Comparison of the rate of collagen area between the young control group and the elderly model group (n = 5, n is for the number of animals analyzed. *P < 0.05 when compared with the young control group). d Comparison of CD31 expression quantity around the alveoli between the young control group and the elderly model group (n = 5, n is for the number of animals analyzed. ****P < 0.0001 when compared with the young control group)Back to article page