2.3.4. Related Biochemical Indexes of Osteoporosis
elbow venous blood from 8 to 10:00, osteoporosis
OSTEOPOROSIS
The biochemical indexes related to osteoporosis were detected before treatment and 6 months after treatment. (1) Bone metabolic indexes are as follows: procollagen N-terminal propeptide of serum type I (PINP), serum osteocalcin (OC), collagen cross-linked carboxyl terminal peptide type I (Fasting peripheral blood 7 ml (including anticoagulant blood vessel 1 ml and procoagulant blood vessel 3 ml) was collected from each subject. The subjects were required to draw elbow venous blood from 8 to 10:00 am with empty stomach. The blood samples were collected on that day by Guangzhou Jinyu testing Technology Co., Ltd. Samples that were not sent on the same day (but ensured that they could be sent on the same day) must be stored in a refrigerator at 4°C within 6 hours. If the sample could not be sent for examination on the same day, the blood collection unit would be responsible for centrifuging and collecting serum (4-5 ml) and freezing it in the refrigerator at −20°C until it was submitted for examination. PINP and 