Vitamin D deficiency increases the risk of peripheral neuropathy in Chinese patients with type 2 diabetes.
He, Rui; Hu, Yanyun; Zeng, Hui; Zhao, Jun; Zhao, Jungong; Chai, Yimin; Lu, Fengdi; Liu, Fang; Jia, Weiping
Diabetes/Metabolism: Research & Reviews. AN: 01445403-900000000-99835. online before print, 22 June 2016
- Diabetics are 2.7 X more likely to get peripheral neuropathy if low vitamin D – meta-analysis Dec 2014
- Search VitaminDWiki for Peripheral Neuropathy 77 items Aug 2016
- ALL autoimmune peripheral neuropathy patients had low vitamin D levels – Oct 2014
- Diabetic Neuropathy sometimes can be reversed by vitamin D collection of many PN studies
- Pain of Diabetic Neuropathy reduced with weekly 50,000 IU vitamin D– CT Feb 2015
- Diabetic neuropathy least likely if have 30-40 ng of vitamin D – Oct 2015
Overview Diabetes and vitamin D contains the following summary
- Diabetes is 5X more frequent far from the equator
- Children getting 2,000 IU of vitamin D are 8X less likely to get Type 1 diabetes
- Obese people get less sun / Vitamin D - and also vitamin D gets lost in fat
- Sedentary people get less sun / Vitamin D
- Worldwide Diabetes increase has been concurrent with vitamin D decrease and air conditioning
- Elderly get 4X less vitamin D from the same amount of sun
Elderly also spend less time outdoors and have more clothes on
- All items in category Diabetes and Vitamin D
434 items: both Type 1 and Type 2
Vitamin D appears to both prevent and treat diabetes
- Appears that >2,000 IU will Prevent
- Appears that >4,000 IU will Treat , but not cure
- Appears that Calcium and Magnesium are needed for both Prevention and Treatment
which are just some of the vitamin D cofactors
Background: Vitamin D deficiency was reported to be associated with diabetic peripheral neuropathy. But the association in Chinese population and the screening value of vitamin D deficiency for diabetic peripheral neuropathy were unknown.
Methods: A total of 861 patients with type 2 diabetes were recruited in this cross-sectional study. Vitamin D deficiency was defined as serum circulating 25-hydroxyvitamin D(25(OH)D) level < 20 ng/mL. Peripheral neuropathy was evaluated by neurological symptoms, neurological signs, neurothesiometer and electromyogram.
Results: The patients with diabetic peripheral neuropathy had significantly lower serum 25(OH)D concentration (15.59 +/- 7.68 ng/mL) and higher prevalence of vitamin D deficiency (80%) than patients with signs of diabetic peripheral neuropathy (17.66 +/- 7.50 ng/mL; 64.5%) and non-DPN patients (18.35 +/- 6.60; 61.7%) (all p < 0.01). Spearman's correlation analysis showed that serum circulating 25(OH)D level was closely associated with DPN (r = 0.121) and signs of DPN (r = 0.111) (both p < 0.01). After adjusting for all potential confounders,
VDD was still linked with increased risk of DPN [odds ratio 2.59 (1.48-4.53)] (p < 0.01). Logistical regression analysis further revealed that VDD was an independent risk factor for DPN (beta = 0.88) (p < 0.01). Receiver operating characteristic analysis indicated that serum 25(OH)D < 17.22 ng/mL hinted the signs of DPN and serum 25(OH)D < 16.01 ng/mL predicted the occurrence of DPN (both p < 0.01).
Conclusions: Vitamin D deficiency is an independent risk factor for diabetic peripheral neuropathy and may be a potential biomarker for peripheral neuropathy in Chinese patients with type 2 diabetes.
Copyright (C) 2016 John Wiley & Sons, Ltd. (C) 2016 John Wiley & Sons, Ltd