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Parkinson’s – Vitamin D, bone density, insomnia, falls, poor sleep, anxiety – March 2019


Relationship between 25-Hydroxyvitamin D, bone density, and Parkinson’s disease symptoms

Nutrients 2022,14, 1220. https://doi.org/10.1111/ane
Hui-Jun Zhang, Jin-Ru Zhang, Cheng-Jie Mao, Kai Li, Fen Wang, Jing Chen, Chun-Feng Liu

Objectives
Vitamin D deficiency is widespread in patients with Parkinson's disease (PD). Our aim was to determine whether serum vitamin D levels correlated with bone mineral density (BMD) and non-motor symptoms in patients with PD.

Materials & Methods
A consecutive series of 182 patients with PD and 185 healthy controls were included. Serum 25-hydroxyvitamin D (25OHD) levels were measured by immunoassay, while BMD of the lumbar spine and femoral neck was measured by dual-energy X-ray absorptiometry. Associations between serum vitamin D levels and clinical data were evaluated using partial correlation analysis.

Results
Patients with PD had significantly lower serum 25(OH)D levels relative to healthy controls (49.75 ± 14.11 vs 43.40 ± 16.51, P < 0.001). Furthermore, PD patients with lower vitamin D levels had a significantly higher frequency of falls (P = 0.033) and insomnia (P = 0.015). They also had significantly higher scores for the Pittsburgh Sleep Quality Index (PSQI; P = 0.014), depression (P = 0.020), and anxiety (P = 0.009).
Finally, patients with PD also had a significantly

  • lower mean BMD of the lumbar spine (P = 0.011) and femoral neck (P < 0.001).

After adjusting for age, sex, and body mass index, vitamin D levels significantly correlated with

  • falls,
  • insomnia, and
  • scores for the PSQI, depression, and anxiety.

Conclusions
In patients with PD, vitamin D levels significantly correlated with falls and some non-motor symptoms. However, no associations were found between BMD and the serum 25(OH)D levels in patients with PD. Thus, vitamin D supplementation is a potential therapeutic for non-motor PD symptoms.
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19556 PD March 2019.pdf admin 10 May, 2023 532.27 Kb 68