Decreased bone mineral density at the distal radius, but not at the lumbar spine or the femoral neck, in Japanese type 2 diabetic patients.
The purpose of this study is to assess the association between type 2 diabetes and bone mineral density. This study included 145 Japanese patients (64 men and 81 women) with type 2 diabetes and 95 non-diabetic control subjects (41 men and 54 women) of similar age. We measured bone mineral density (BMD) at the sites with different cortical/cancellous bone ratio (lumbar spine, femoral neck, and distal radius) using dual-energy X-ray absorptiometry. BMD and Z score at the distal radius were significantly lower in type 2 diabetic patients than those in control subjects, and in type 2 diabetic patients, the Z score at the distal radius was lower than that at their own lumbar spine and femoral neck. In type 2 diabetic patients, negative correlation between BMD and the mean HbA1c during the previous 2 years was found significantly at the distal radius in both genders and at the femoral neck in women. These results indicate the selective cortical bone loss in type 2 diabetes and suggest the importance of also determining BMD at the radius and keeping good metabolic control to prevent bone loss in type 2 diabetic patients.
Majima
T
T
Department of Endocrinology and Metabolism, Rakuwakai Otowa Hospital, Kyoto, Japan.
Komatsu
Y
Y
Yamada
T
T
Koike
Y
Y
Shigemoto
M
M
Takagi
C
C
Hatanaka
I
I
Nakao
K
K
D015502:Absorptiometry, Photon; D015519:Bone Density / Q000502:physiology*; D003924:Diabetes Mellitus, Type 2 / Q000503:physiopathology*; D005260:Female; D005272:Femur Neck / Q000503:physiopathology*; D006442:Glycated Hemoglobin / Q000378:metabolism; D006801:Humans; D007564:Japan / Q000208:ethnology; D008159:Lumbar Vertebrae / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D010024:Osteoporosis / Q000503:physiopathology / Q000517:prevention & control; D011884:Radius / Q000503:physiopathology*
D006442:Glycated Hemoglobin