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Sevelamer hydrochloride prevents ectopic calcification and renal osteodystrophy in chronic renal failure rats.
Kidney Int. 2003 Aug; 64(2):441-50.KI

Abstract

BACKGROUND

Hyperphosphatemia is associated with severe complications, including ectopic calcification of soft tissues, secondary hyperparathyroidism, and renal osteodystrophy (ROD). Sevelamer hydrochloride is a nonabsorbed calcium- and metal-free phosphate binder that lowers serum phosphorus levels in hemodialysis patients. This study examined the efficacy of sevelamer in preventing ectopic calcification of soft tissues and ROD in adenine-induced renal failure rats.

METHODS

Male, 12-week-old Wistar-Jcl rats were freely fed an adenine diet (0.75 g adenine in 100 g normal diet) for four weeks. After three weeks of the adenine diet, when serum phosphorus levels had significantly increased, the rats were freely fed a normal diet that contained 1% or 2% of sevelamer for another five weeks. Time course changes of serum levels of phosphorus, calcium, and parathyroid hormone (PTH) were measured. At the end of the study, calcium and phosphorus levels in the heart and aorta were measured, and the calcification of kidney, heart, aorta, and stomach were histopathologically examined. The severity of ROD was evaluated by a histopathologic and morphometric analysis of the femurs.

RESULTS

Compared with the adenine controls (N = 10), the sevelamer-treated (1%, N = 6; and 2%, N = 10) groups of adenine-induced renal failure rats had reduced serum phosphorus, serum calcium x phosphorus product, and serum PTH levels. Moreover, in the treatment groups, sevelamer suppressed calcification of the aorta media, and also the osteoid volume, fibrosis volume, and porosity ratio of femurs.

CONCLUSION

These results suggest that sevelamer treatment might contribute to the suppression of ectopic calcification and ROD.

Authors+Show Affiliations

Fuji Gotemba Research Laboratory, Chugai Pharmaceutical Co., Ltd., Shizuoka, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

12846739

Citation

Katsumata, Kyoko, et al. "Sevelamer Hydrochloride Prevents Ectopic Calcification and Renal Osteodystrophy in Chronic Renal Failure Rats." Kidney International, vol. 64, no. 2, 2003, pp. 441-50.
Katsumata K, Kusano K, Hirata M, et al. Sevelamer hydrochloride prevents ectopic calcification and renal osteodystrophy in chronic renal failure rats. Kidney Int. 2003;64(2):441-50.
Katsumata, K., Kusano, K., Hirata, M., Tsunemi, K., Nagano, N., Burke, S. K., & Fukushima, N. (2003). Sevelamer hydrochloride prevents ectopic calcification and renal osteodystrophy in chronic renal failure rats. Kidney International, 64(2), 441-50.
Katsumata K, et al. Sevelamer Hydrochloride Prevents Ectopic Calcification and Renal Osteodystrophy in Chronic Renal Failure Rats. Kidney Int. 2003;64(2):441-50. PubMed PMID: 12846739.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sevelamer hydrochloride prevents ectopic calcification and renal osteodystrophy in chronic renal failure rats. AU - Katsumata,Kyoko, AU - Kusano,Kenichiro, AU - Hirata,Michinori, AU - Tsunemi,Kunihiko, AU - Nagano,Nobuo, AU - Burke,Steven K, AU - Fukushima,Naoshi, PY - 2003/7/9/pubmed PY - 2004/3/27/medline PY - 2003/7/9/entrez SP - 441 EP - 50 JF - Kidney international JO - Kidney Int VL - 64 IS - 2 N2 - BACKGROUND: Hyperphosphatemia is associated with severe complications, including ectopic calcification of soft tissues, secondary hyperparathyroidism, and renal osteodystrophy (ROD). Sevelamer hydrochloride is a nonabsorbed calcium- and metal-free phosphate binder that lowers serum phosphorus levels in hemodialysis patients. This study examined the efficacy of sevelamer in preventing ectopic calcification of soft tissues and ROD in adenine-induced renal failure rats. METHODS: Male, 12-week-old Wistar-Jcl rats were freely fed an adenine diet (0.75 g adenine in 100 g normal diet) for four weeks. After three weeks of the adenine diet, when serum phosphorus levels had significantly increased, the rats were freely fed a normal diet that contained 1% or 2% of sevelamer for another five weeks. Time course changes of serum levels of phosphorus, calcium, and parathyroid hormone (PTH) were measured. At the end of the study, calcium and phosphorus levels in the heart and aorta were measured, and the calcification of kidney, heart, aorta, and stomach were histopathologically examined. The severity of ROD was evaluated by a histopathologic and morphometric analysis of the femurs. RESULTS: Compared with the adenine controls (N = 10), the sevelamer-treated (1%, N = 6; and 2%, N = 10) groups of adenine-induced renal failure rats had reduced serum phosphorus, serum calcium x phosphorus product, and serum PTH levels. Moreover, in the treatment groups, sevelamer suppressed calcification of the aorta media, and also the osteoid volume, fibrosis volume, and porosity ratio of femurs. CONCLUSION: These results suggest that sevelamer treatment might contribute to the suppression of ectopic calcification and ROD. SN - 0085-2538 UR - https://www.unboundmedicine.com/medline/citation/12846739/Sevelamer_hydrochloride_prevents_ectopic_calcification_and_renal_osteodystrophy_in_chronic_renal_failure_rats_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0085-2538(15)49350-0 DB - PRIME DP - Unbound Medicine ER -