ABSTRACT
Objective:To study the correlation of bone metabolism biomarkers between newborn twins and their mothers during pregnancy.Methods:From January 1, 2018 to June 30, 2022, newborn twins with mild symptoms admitted to the neonatal department of our hospital were retrospectively reviewed. The clinical data of the twins and their mothers were collected, including bone metabolism biomarkers of the twins within 3 d after birth and their mothers within last month during pregnancy. The twins were assigned into different groups according to gestational age(GA), birth weight(BW), the relationship between BW and GA(appropriate for GA(AGA),small for GA(SGA) and large for GA(LGA), birth season, gender, and the mothers' age, ethnicity, pre-delivery body mass index (BMI), gestational BMI increase, number of births and chorionic properties. The correlations of bone metabolism biomarkers between the twins and their mothers were analyzed.Results:A total of 302 pairs of twins were included. The incidence of insufficient or deficient serum 25-(OH)D 3 was 97.4% among the mothers, and 87.7% among the twins. The levels of blood phosphorus ( r=0.262, P<0.001) and 25-(OH)D 3 ( r=0.239, P=0.002) in mothers were positively correlated with the twin with larger BW. No significant differences existed in 25-(OH)D 3 between genders, AGA,SGA and LGA, birth season, and mothers' age, ethnicity, pre-delivery BMI, gestational BMI increase and chorionic properties( P>0.05). 25-(OH)D 3 in the twins were positively correlated with BW and 25-(OH)D 3 of mothers before delivery ( P<0.05) and negatively correlated with number of births ( P<0.05). Conclusions:In most mothers and their newborn twins, 25-(OH)D 3 are insufficient or deficient. The levels of blood phosphorus and 25-(OH) D 3 are correlated between the newborns and their mothers. The lower the BW of the newborn, the more times the mother give birth and the lower the mother's pre-delivery 25-(OH)D 3 level, the lower the newborn's 25-(OH)D 3 level.
ABSTRACT
Biochemical markers of bone metabolism are some of the final product which are released into the blood during the process of bone resorption or bone formation.Accumulative evidence shows that biochemical markers of bone metabolism through enzyme-linked immunoassay (ELISA) are more sensitive and specific than imaging examination.Moreover,biochemical markers of bone metabolism also display their superiorities on the early diagonosis,monitoring efficacy and prognosis evaluation in patients with bone metastases.Applications of biochemical markers of bone metabolism combined with imaging examination are more value for the early diagonosis,monitoring efficacy and prognosis evaluation in patients with bone metastases.
ABSTRACT
OBJECTIVE: In patients with spinal cord injury, it is more susceptible to osteoporosis because bone resorption is more prominent than bone formation. Thus we evaluated the change of biochemical markers and bone mineral densities (BMDs) according to the duration of injury, the spinal cord injury level, and the injury severity. METHOD: The subjects were included 26 patients with spinal cord injury and 22 healthy men. We measured serum osteocalcin and urine deoxypyridinoline (DPYD) in 2 hours after awakening and measured BMDs in lumbar vertebrae, femur, and distal forearm in patients and control group. The patients were 21 men, 5 women, mean age 43.2+/-14.3 years, and mean duration 28.3+/-45.0 months, who were divided by injury level and injury severity respectively. RESULTS: The biochemical markers of bone metabolism in patients group had significant differences comparing to control group (p<0.05). The urine DPYD and BMDs in femur showed significantly negative correlation with the duration of spinal cord injury (p<0.05). CONCLUSION: In patients with spinal cord injury, urine DPYD and BMDs in femur had significant correlation with the duration of injury. But, the injury level and injury severity had no significant correlation with the markers of bone metabolism and BMDs.