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Decreased fracture risk in users of organic nitrates: a nationwide case-control study.
J Bone Miner Res 2006; 21(11):1811-7JB

Abstract

In a nationwide population-based pharmaco-epidemiological case-control study, including 124,655 subjects who had sustained a fracture during 2000 (cases) and 373,962 age- and sex-matched controls, we found an approximately 15% reduced risk of fractures in users of organic nitrates. Thus, organic nitrates may protect against osteoporosis.

INTRODUCTION

Organic nitrates are widely used in the treatment of ischemic heart diseases. In addition, nitrates may affect bone. In vitro studies have shown that nitrates are able to inhibit bone resorption, and recent studies in humans have shown a positive effect on BMD and bone turnover.

MATERIALS AND METHODS

We studied the effect of organic nitrates on risk of fracture. We performed a population-based pharmaco-epidemiological case-control study with fracture in 2000 as outcome and use of nitrates (isosorbide mononitrate, isosorbide dinitrate, and nitroglycerin) during the previous 5 years as exposure variable. We used nationwide computerized registers to assess individual use of nitrates and related these data to individual fracture data and information on potential confounders. In the study, we included 124,655 subjects who had sustained a fracture during 2000 (cases) and 373,962 age- and sex-matched controls.

RESULTS

After confounder adjustment, use of nitrates was associated with an 11% reduced risk of any fracture (OR = 0.89; 95% CI, 0.86-0.92) and a 15% reduced risk of hip fracture (OR = 0.85; 95% CI, 0.79-0.92). Risk of any fracture was reduced in both men and women, but risk of hip fracture was only reduced in women. Hip fracture risk was reduced dose-dependently. Use of nitrates with a short duration of action was associated with lower risk estimates than use of slow release preparations.

CONCLUSIONS

Treatment with nitrates is associated with a decreased risk of fracture. Further studies should determine whether a causal relationship exists.

Authors+Show Affiliations

Department of Endocrinology and Metabolism, Aarhus University Hospital, Aarhus Sygehus, Tage-Hansens Gade 2, Aarhus C, Denmark. rejunmark@post6@.tele.dkNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17054422

Citation

Rejnmark, Lars, et al. "Decreased Fracture Risk in Users of Organic Nitrates: a Nationwide Case-control Study." Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research, vol. 21, no. 11, 2006, pp. 1811-7.
Rejnmark L, Vestergaard P, Mosekilde L. Decreased fracture risk in users of organic nitrates: a nationwide case-control study. J Bone Miner Res. 2006;21(11):1811-7.
Rejnmark, L., Vestergaard, P., & Mosekilde, L. (2006). Decreased fracture risk in users of organic nitrates: a nationwide case-control study. Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research, 21(11), pp. 1811-7.
Rejnmark L, Vestergaard P, Mosekilde L. Decreased Fracture Risk in Users of Organic Nitrates: a Nationwide Case-control Study. J Bone Miner Res. 2006;21(11):1811-7. PubMed PMID: 17054422.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Decreased fracture risk in users of organic nitrates: a nationwide case-control study. AU - Rejnmark,Lars, AU - Vestergaard,Peter, AU - Mosekilde,Leif, PY - 2006/10/24/pubmed PY - 2007/1/24/medline PY - 2006/10/24/entrez SP - 1811 EP - 7 JF - Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research JO - J. Bone Miner. Res. VL - 21 IS - 11 N2 - UNLABELLED: In a nationwide population-based pharmaco-epidemiological case-control study, including 124,655 subjects who had sustained a fracture during 2000 (cases) and 373,962 age- and sex-matched controls, we found an approximately 15% reduced risk of fractures in users of organic nitrates. Thus, organic nitrates may protect against osteoporosis. INTRODUCTION: Organic nitrates are widely used in the treatment of ischemic heart diseases. In addition, nitrates may affect bone. In vitro studies have shown that nitrates are able to inhibit bone resorption, and recent studies in humans have shown a positive effect on BMD and bone turnover. MATERIALS AND METHODS: We studied the effect of organic nitrates on risk of fracture. We performed a population-based pharmaco-epidemiological case-control study with fracture in 2000 as outcome and use of nitrates (isosorbide mononitrate, isosorbide dinitrate, and nitroglycerin) during the previous 5 years as exposure variable. We used nationwide computerized registers to assess individual use of nitrates and related these data to individual fracture data and information on potential confounders. In the study, we included 124,655 subjects who had sustained a fracture during 2000 (cases) and 373,962 age- and sex-matched controls. RESULTS: After confounder adjustment, use of nitrates was associated with an 11% reduced risk of any fracture (OR = 0.89; 95% CI, 0.86-0.92) and a 15% reduced risk of hip fracture (OR = 0.85; 95% CI, 0.79-0.92). Risk of any fracture was reduced in both men and women, but risk of hip fracture was only reduced in women. Hip fracture risk was reduced dose-dependently. Use of nitrates with a short duration of action was associated with lower risk estimates than use of slow release preparations. CONCLUSIONS: Treatment with nitrates is associated with a decreased risk of fracture. Further studies should determine whether a causal relationship exists. SN - 0884-0431 UR - https://www.unboundmedicine.com/medline/citation/17054422/Decreased_fracture_risk_in_users_of_organic_nitrates:_a_nationwide_case_control_study_ L2 - https://doi.org/10.1359/jbmr.060804 DB - PRIME DP - Unbound Medicine ER -