Abstract:
:In order to compare the bone aging process in Werner's syndrome, a disease characterized by premature aging, and that in natural aging, we have assessed the bone status in a total of 19 cases (11 males and eight postmenopausal females) with Werner's syndrome. The spinal deformity index was determined for a total of 87 vertebral bodies from nine male patients and for a total of 61 vertebral bodies from six female patients. In the male patients, 15 vertebral deformities among 87 vertebrae in seven patients were observed, and the incidences of patients bearing deformity and deformed vertebrae were 77.8 (7/9) and 17.2% (15/87), respectively. In the female patients, the corresponding incidences were 50.0% (3/6) and 4.9% (3/61), respectively. The chi2-values for the incidences of patients bearing deformity and deformed vertebrae in the male and the female patients were 1.25 (P=0.26) and 5.24 (P<0.03), respectively. The metacarpal cortical thickness (MCI) was also measured on hand X-ray films, and the Z scores for MCI in the male (n=9) and female (n=3) patients were -0.8+/-0.3 and -1.6+/-0.3, respectively. This gender-based difference in the MCI was not statistically significant but, the Z scores for MCI in both the males and the females were significantly smaller than those of corresponding age-matched controls (P<0.05 and 0.01, respectively). The serum levels of calcium, intact PTH, 25-OH vitamin D and 1,25(OH)2 vitamin D in three male and three female Werner's syndrome patients were within the reference ranges with one exception. The serum intact osteocalcin levels in the male (2.2+/-0.6 ng/ml) and female (2.6+/-0.8 ng/ml) patients were lower than the age-matched control values (P<0.05 for males) and the postmenopausal control values (P<0.05 for females). In conclusion, the incidence of spinal bone deformity was higher in males with Werner's syndrome than that in female patients. The cortical bone thickness decreased in both the male and the female patients. A low serum intact osteocalcin level was a characteristic finding in the male and in post-menopausal Werner's syndrome, so that the bone changes such as vertebral fracture incidence and the serum intact osteocalcin level in Werner's syndrome may differ from those in normal aging in the general population.
journal_name
Endocr Jjournal_title
Endocrine journalauthors
Shiraki M,Aoki C,Goto Mdoi
10.1507/endocrj.45.505subject
Has Abstractpub_date
1998-08-01 00:00:00pages
505-12issue
4eissn
0918-8959issn
1348-4540journal_volume
45pub_type
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