Correlations of Serum IL-6 Levels and Prolidase Activity Between Bone Turnover Markers and Bone Mineral Density in Postmenopausal Women With and Without Osteoporosis

Aim: The purpose of this study was to measure serum prolidase activity and interleukin-2 and 6 (IL-2, IL-6) levels and to investigate the relationship of these parameters with bone mineral density (BMD) and bone turnover markers in postmenopausal women with and without osteoporosis. Materials and Methods: 59 postmenopausal women were included in this study (21 women with osteoporosis and 38 without). Serum IL-2 and IL-6 levels, prolidase activity, osteocalcin (OSC), calcium (Ca), alkaline phosphatase (ALP), urinary deoxypyridinoline (DPD) and BMD were measured in postmenopausal women with and without osteoporosis. Results: Serum prolidase activity was slightly higher in postmenopausal nonosteoporotic women than in postmenopausal osteoporotic women, but the difference did not reach a statistical significance. Mean values of OSC and IL-6 levels were significantly higher in postmenopausal osteoporotic than in nonosteoporotic women (P < 0.05). There were significant correlations between OSC with IL-6 (r = 0.545, p = 0.01) and urinary DPD (r = -0.513, p = 0.01) in postmenopausal osteoporotic women. Conclusions: Serum prolidase activity in postmenopausal osteoporotic women was not correlated with the bone turnover markers and BMD. Elevated levels of IL-6 in postmenopausal osteoporosis might have an important role in the pathogenesis of postmenopausal osteoporosis.

Correlations of Serum IL-6 Levels and Prolidase Activity Between Bone Turnover Markers and Bone Mineral Density in Postmenopausal Women With and Without Osteoporosis

Aim: The purpose of this study was to measure serum prolidase activity and interleukin-2 and 6 (IL-2, IL-6) levels and to investigate the relationship of these parameters with bone mineral density (BMD) and bone turnover markers in postmenopausal women with and without osteoporosis. Materials and Methods: 59 postmenopausal women were included in this study (21 women with osteoporosis and 38 without). Serum IL-2 and IL-6 levels, prolidase activity, osteocalcin (OSC), calcium (Ca), alkaline phosphatase (ALP), urinary deoxypyridinoline (DPD) and BMD were measured in postmenopausal women with and without osteoporosis. Results: Serum prolidase activity was slightly higher in postmenopausal nonosteoporotic women than in postmenopausal osteoporotic women, but the difference did not reach a statistical significance. Mean values of OSC and IL-6 levels were significantly higher in postmenopausal osteoporotic than in nonosteoporotic women (P < 0.05). There were significant correlations between OSC with IL-6 (r = 0.545, p = 0.01) and urinary DPD (r = -0.513, p = 0.01) in postmenopausal osteoporotic women. Conclusions: Serum prolidase activity in postmenopausal osteoporotic women was not correlated with the bone turnover markers and BMD. Elevated levels of IL-6 in postmenopausal osteoporosis might have an important role in the pathogenesis of postmenopausal osteoporosis.

___

  • Myara I, Myara A, Mangeot M, Fabre M, Charpentier C, Lemon- nier A. Plasma prolidase activity: a possible index of collagen catabolism in chronic liver disease. Clin Chem 1984; 30: 211- 215.
  • Miltyk W, Annchim T, Wolcyynski S, Pakla J. Estrogen-dependent regulation of prolidase activity in breast cancer MCF-7 cells. Gynecol Endocrinol 1999; 13: 166-174.
  • Chiu KM, Arnaud CD, Ju J, Mayes D, Bacchetti P, Weitz S et al. Correlation of estradiol, parathyroid hormone, interleukin-6 and soluble interleukin-6 receptor during the normal menstrual cycle. Bone 2000; 26: 79-85.
  • Chaudhary LR, Spelsbert TC, Rggs BL. Production of various cytokines by normal human osteoblast-like cells in response to interleukin-1 beta and tumor necrosis factor alpha: lack of regu- lation by 17-beta estradiol. Endocrinology 1992; 130: 2528- 2534.
  • Rickard D, Russel G, Gowen M. Oestradiol inhibits the release of tumor necrosis factor but not interleukin-6 from adult human osteoblasts in vitro. Osteoporos Int 1992; 2: 94-102.
  • Rifas L, Kenney JS, Marcelli M, Pacifici R, Cheng SL, Dawson LL et al. Production of interleukin-6 in human osteoblasts and human bone marrow stromal cells: evidence that induction by interleukin- 1 and tumor necrosis factor alpha is not regulated by ovarian steroids. Endocrinology 1995; 136: 4056-4067.
  • McKane WR, Khosla S, Peterson JM, Egan K, Riggs BL. Circulat- ing levels of cytokines that modulate bone resorption: effects of age and menopause in women. J Bone Miner Res 1994; 9: 1313- 1318.
  • Rachon D, Mysliwska J, Suchecka-Rachon K, Wieckiewicz J, Mys- liwski A. Effect of oestrogen deprivation on interleukin-6 produc- tion by peripheral blood mononuclear cells of postmenopausal women. J Endocrinol 2002; 172: 387-395.
  • Straub RH, Hense HW, Andus T, Scholmerich J, Riegger GA, Schunkert H. Hormone replacement therapy and interrelation between serum interleukin-6 and body mass index in post- menopausal women: a population based study. J Clin Endocrinol Metab 2000; 85: 1340-1344.
  • Scheidt-Nave C, Bismar H, Leidig-Bruckner G, Woitge H, Seibel MJ, Ziegler R et al. Serum interleukin-6 is a major predictor of bone loss in women specific to the first decade past menopause. J Clin Endocrinol Metab 2001; 86: 2032-2042.
  • Pacifici R. Estrogen, cytokines and pathogenesis of post- menopausal osteoporosis. J Bone Miner Res 1996; 11: 1043- 1051.
  • Gür A, Denli A, Cevik R, Nas K, Karakoc M, Sarac AJ. The effects of alendronate and calcitonin on cytokines in postmenopausal osteoporosis. A 6-month randomized and controlled study. Yon- sei Med J 2003; 44: 99-109.
  • Verit FF, Geyikli I, Yazgan P, Celik A. Correlations of serum pro- lidase activity between bone turnover markers and mineral densi- ty in postmenopausal osteoporosis. Arch Gynecol Obstet 2006; 274 (3): 133-137.
  • Sumino H, Ichikawa S, Abe M, Endo Y, Nakajima Y, Minegishi T et al. Effects of aging and postmenopausal hypoestrogenism on skin elasticity and bone mineral density in Japaenese women. Endocr J 2004; 51: 159-164.
  • Surazynski A, Jarzabek K, Haczynski J, Laudanski P, Palka J, Wolczynski S. Differential effects of estradiol and raloxifene on collagen biosynthesis in cultured human skin fibroblasts. Int J Mol Med 2003; 12: 803-809.
  • Pacifici R. Editorial. Cytokines, estrogen and postmenopausal osteoporosis - the second decade. Endocrinology 1998; 139: 2659-2561.
  • Horowitz MC. Cytokines and estrogen in bone: antiosteoporotic effects. Science 1993; 260: 626-627.
  • Rachon D, Mysliwska J, Suchecka-Rachon K, Semetkowska- Jurkiewicz B, Zorena K, Lysiak-Szydlowska W. Serum interleukin- 6 levels and bone mineral density at the femoral neck in post- menopausal women with type 1 diabetes. Diabetic Med 2003; 20: 475-480.
  • Kim JG, Ku SY, Lim KS, Jee BC, Suh CS, Kim SH et al. Cytokine production by whole blood cells: relationship to interleukin gene polymorphism and bone mass. J Korean Med Sci 2005; 20: 1017-1022.
  • Kania DM, Brinkley N, Checovich M, Havighurst T, Schilling M, Ershler WB. Elevated plasma levels of interleukin-6 in post- menopausal women do not correlate with bone density. J Am Geri Soc 1995; 43: 236-239.
Turkish Journal of Medical Sciences-Cover
  • ISSN: 1300-0144
  • Yayın Aralığı: Yılda 6 Sayı
  • Yayıncı: TÜBİTAK
Sayıdaki Diğer Makaleler

Evaluation of the ehrlich-ziehl-neelsen (EZN) and amplified mycobacterium tuberculosis direct test according to the bacted method in respiratory and nonrespiratory samples

Tuncer ÖZEKİNCİ, Sevim MEŞE, Nezahat AKPOLAT, Selahattin ATMACA, Kadri GÜL

Evaluation of the Ehrlich-Ziehl-Neelsen (EZN) and Amplified Mycobacterium tuberculosis Direct Test According to the BACTEC Method in Respiratory and Nonrespiratory Samples

Tuncer ÖZEKİNCİ, Sevim MEŞE, Selahattin ATMACA, Nezahat AKPOLAT, Kadri GÜL

Cobalamin Deficiency During Pregnancy Expressed as Elevated Urine Methylmalonic Acid Levels Determined by a Photometric Assay

Osman Metin İPÇİOĞLU, Mustafa GÜLTEPE, Ömer ÖZCAN

Intussusception due to ınflammatory fibroid polyp located at ıleum: report of two cases

Fahri YILMAZ, Özgür KORKMAZ, Hatice Gülşen YILMAZ

Horner´s Syndrome Post-Excision of a Huge Cervical Sympathetic Chain Schwannoma

Sedat AYDIN

Horner’s syndrome post-excision of a huge cervical sympathetic chain schwannoma

Sedat AYDIN, Aylin Ege GÜL, Ömer TAŞDEMİR, Arif ŞANLI

Chromosome and p63 Gene Analysis of an Infant with Ectrodactyly&#8211;Split Hand and Foot Malformation

Osman DEMİRHAN

Correlations of Serum IL-6 Levels and Prolidase Activity Between Bone Turnover Markers and Bone Mineral Density in Postmenopausal Women With and Without Osteoporosis

Aysun TOKER, Bünyamin BÖREKÇİ, Hülya AKSOY, Asuman ÖZKAN

A Role of Leptin in Psoriasis?

şebnem AKTAN, Simin ROTA, Bünyamin KAPTANOĞLU, Berna Şanlı ERDOĞAN, Mehmet BOSTANCI, Şeniz ERGİN

A rare side effect of metformin: metformin-ınduced hepatotoxicity

Nil HOCAOĞLU, Selahattin KIYAN, Ersin AKSAY, Sedat YANTURALI