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The serum level of bone-specific alkaline phosphatase activity is associated with aortic calcification in

Kousuke Iba1, Junichi Takada, Toshihiko Yamashita

  • 1Department of Orthopaedic Surgery, Sapporo Medical University School of Medicine, South-1, West-16, Chuo-ku, Sapporo, Japan. iba@sapmed.ac.jp.

Journal of Bone and Mineral Metabolism
|October 19, 2004
PubMed

Insights

Osteoporosis patients with abdominal aortic calcification show higher serum bone-specific alkaline phosphatase activity, a marker of bone formation. This suggests a link between bone metabolism and vascular calcification in osteoporosis.

Area of Science:

  • Biochemistry
  • Orthopedics
  • Cardiovascular Medicine

Background:

  • Vascular calcification and osteoporosis share potential linkages and common etiologies.
  • Understanding the relationship between bone metabolism and vascular calcification is crucial.

Purpose of the Study:

  • To investigate differences in serum bone metabolic markers between osteoporosis patients with and without vascular calcification.
  • To explore the role of bone-specific alkaline phosphatase in abdominal aortic calcification.

Main Methods:

  • Comparison of serum and urine bone metabolic markers in osteoporosis patients.
  • Measurement of bone-specific alkaline phosphatase activity, type I collagen cross-linked N-telopeptides, intact osteocalcin, calcium (Ca), and phosphorus (P).

Main Results:

  • Osteoporosis patients with abdominal aortic calcification exhibited significantly higher serum bone-specific alkaline phosphatase activity compared to those without.
  • No significant differences were observed in urine type I collagen cross-linked N-telopeptides, serum intact osteocalcin, Ca, or P levels.

Conclusions:

  • Serum bone-specific alkaline phosphatase activity may serve as a marker for aortic calcification in osteoporosis patients.
  • Elevated bone-specific alkaline phosphatase activity suggests a potential link between osteoblast differentiation and vascular calcification processes.

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