Volume 21, number 5 (May), 2006 (published online: February 21, 2006)

	Articles
1	Exercise-induced apoptosis in rat kidney is mediated by both angiotensin II AT1 and AT2 receptors M. Podhorska-Okolow1, P. Dziegiel1, A. Gomulkiewicz1, D. Kisiela2, B. Dolinska-Krajewska1, Z. Jethon3, U. Carraro4 and M. Zabel pp 459-466
2	Development and phenotypic characterization of a high density in vitro model of auricular chondrocytes with applications in reconstructive plastic surgery A. Haisch, U. Marzahn, A. Mobasheri, G. Schulze-Tanzil and M. Shakibaei pp 467-476
3	Immunolocalization of matrix proteins in different human cartilage subtypes L. Wachsmuth, S. Söder, Z. Fan, F. Finger and T. Aigner pp 477-485
4	Naris occlusion alters transductory protein immunoreactivity in olfactory epithelium D.M. Coppola, A.M. Waguespack, M.R. Reems, M.L. Butman and J.A. Cherry pp 487-501
5	Lewisy antigen (CD174) and apoptosis in gastric and colorectal carcinomas: Correlations with clinical and prognostic parameters S.E. Baldus, S.P. Mönig, T.K. Zirbes, J. Thakran, D. Köthe, M. Köppel, F.-G. Hanisch, J. Thiele, P.M. Schneider, A.H. Hölscher and H.P. Dienes pp 503-510
6	Involvement of tenascin-C and PG-M/versican in flexor tenosynovial pathology of idiopathic carpal tunnel syndrome M. Tsujii, H. Hirata, T. Yoshida, K. Imanaka-Yoshida, A. Morita and A. Uchida pp 511-518
	Reviews
7	Matrix metalloproteinases in bone marrow: roles of gelatinases in physiological hematopoiesis and hematopoietic malignancies X.F. Yu and Z.C. Han pp 519-531
8	NR4A1, 2, 3 – an orphan nuclear hormone receptor family involved in cell apoptosis and carcinogenesis Q.-X. Li, N. Ke, R. Sundaram and F. Wong-Staal pp 533-540
9	Non-steroidal anti-inflammatory drugs (NSAIDs) and ovulation: lessons from morphology M. Gaytán, C. Morales, C. Bellido, J.E. Sánchez-Criado and F. Gaytán pp 541-556
10	Angiogenesis in rheumatoid arthritis N. Maruotti, F.P. Cantatore, E. Crivellato, A. Vacca and D. Ribatti pp 557-566
11	Genetics of pigment cells: lessons from the tyrosinase gene family F. Murisier and F. Beermann pp 567-578