Figure 6From: Abnormal expression of p27kip1 protein in levator ani muscle of aging women with pelvic floor disorders – a relationship to the cellular differentiation and degenerationType II (A) and type I staining (B) and p27 expression (C) in levator ani muscle of a symptomatic patient (age 63; see also Fig. 3E). Parallel sections. A) No fast twitch fibers are evident. B) All fibers show type I staining, including those exhibiting gradual diminution in size (a3 and a4). C) Cytoplasmic p27 expression gradually increases in regressing fibers (a1 to a4). a1 to a4 indicates presumptive course of apoptosis. s, genuine slow twitch fibers.Back to article page