CDKN1C and temporal arteritis: At protein level (western blot), the relative expression of p57kip2 was 0.414 ± 0.170 and 0.601 ± 0.218 in GCA and its adjacent non-cancerous tissues, respectively; while the relative expression of cyclinD1 was 0.587 ± 0.112 and 0.386 ± 0.109 in GCA and its adjacent non-cancerous tissues, respectively.