Abstract：
:Kashin-Beck disease (KBD) is an endemic, degenerative osteoarthropathy, and particularly seen in China. A deficiency of selenium and iodine is implicated as the main etiological factor for KBD. This meta-analysis aimed to evaluate the differences in the selenium and iodine levels between patients with KBD and healthy individuals. Eligible articles published before March 6, 2015 were searched from four electronic databases. Data extraction and quality assessment of included studies were performed by two independent reviewers. Results were summarized as standardized mean difference (SMD) with 95 % confidence intervals (CIs). Cohen's d test was used to estimate the difference of the effect size between patients with KBD and healthy controls. A total of 26 cross-sectional studies were included in the meta-analysis. The pooled SMD showed that the whole blood selenium (Cohen's d = 4.39, P < 0.001), serum selenium (Cohen's d = 2.42, P = 0.015), hair selenium (Cohen's d = 5.46, P < 0.001), and urinary selenium (Cohen's d = 4.16, P < 0.001) levels were significantly lower in patients with KBD than that in healthy controls. There was no significant difference of plasma selenium (Cohen's d = 0.08, P = 0.936) and urinary iodine (Cohen's d = 0.33, P = 0.744) levels between subjects with KBD and healthy controls. In conclusion, the levels of selenium, but not iodine were significantly lower in subjects with KBD than that in healthy controls. Selenium deficiency might be associated with the risk of KBD.
journal_name
Biol Trace Elem Resjournal_title
Biological trace element researchauthors
Yang L,Zhao GH,Yu FF,Zhang RQ,Guo Xdoi
10.1007/s12011-015-0463-8subject
Has Abstractpub_date
2016-03-01 00:00:00pages
43-54issue
1eissn
0163-4984issn
1559-0720pii
10.1007/s12011-015-0463-8journal_volume
170pub_type
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journal_title：Biological trace element research
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