Changes in bone mineral density, 25-hydroxyvitamin D and inflammatory factors in patients with hyperthyroidism.

The present study aimed to evaluate changes in bone mineral density, 25-hydroxyvitamin D [25-(OH)D] and inflammatory factors in patients with hyperthyroidism, in order to determine the correlations with the pathogenesis of hyperthyroidism. A total of 55 patients with hyperthyroidism (observation group) and 53 healthy patients (control group) enrolled at Weifang People's Hospital from March 2017 to February 2018 were randomly enrolled. The thyroid function, bone mineral density, 25-(OH)D and inflammatory factors were measured and compared between the two groups. The measurement data are presented as mean ± standard deviation (SD), and Student t-test was performed for the comparison between two groups. Chi-square test was used for enumeration data regarding sex. Pearson correlation analysis was performed for two-variable analysis on L1, 25-(OH)D, interleukin (IL)-2, IL-6 with FT3, respectively. In regards to the results, no difference in sex, age and body mass index (BMI) between the two groups were found but the thyroid function was markedly enhanced in the observation group compared to the control group. Bone mineral density index and 25-(OH)D in the observation group were significantly lower than those in the control group (P<0.05). There were significant differences in the inflammatory factors between the two groups (P<0.05). The L1, 25-(OH)D and IL-2 levels were significantly negatively correlated with thyroid function index and free triiodothyronine (FT3) while a statistically positive correlation was found between IL-6 and FT3 (P<0.05). In conclusion, abnormal levels of bone mineral density, 25-(OH)D and inflammatory factors are observed in patients with hyperthyroidism, and there are correlations between L1, 25-(OH)D, IL-2, IL-6 and FT3 in the pathogenesis of hyperthyroidism, which provides new insight for the diagnosis of hyperthyroidism.