ArticleWorld journal of surgical oncology2021
Low urinary iodine is a protective factor of central lymph node metastasis in papillary thyroid cancer: a cross-sectional study.
Article in World journal of surgical oncology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.
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Who cites it
8 citing papers in PubMed, 1 synthesis or guideline pooled it, 10 citations in OpenAlex.
- The relationship between urinary iodine concentration and papillary thyroid cancer: A systematic review and meta-analysis.Frontiers in endocrinology · 2022Pooled it
- Iodinated contrast media (ICM)-induced thyroid dysfunction: a review of potential mechanisms and clinical management.Clinical and experimental medicine · 2025Review
- Effects of Trace Elements on Endocrine Function and Pathogenesis of Thyroid Diseases-A Literature Review.Nutrients · 2025Review
- Analysis of risk factors for papillary thyroid carcinoma and the association with thyroid function indicators.Frontiers in endocrinology · 2024Article
- Association between iodine nutrition and cervical lymph node metastasis of papillary thyroid microcarcinoma.Frontiers in endocrinology · 2023Article
- Evaluate the diagnostic and prognostic value of NUSAP1 in papillary thyroid carcinoma and identify the relationship with genes, proteins, and immune factors.World journal of surgical oncology · 2022Article
- Minimal extrathyroidal extension is associated with lymph node metastasis in single papillary thyroid microcarcinoma: a retrospective analysis of 814 patients.World journal of surgical oncology · 2022Article
- Iodine nutrition and papillary thyroid cancer.Frontiers in nutrition · 2022Review
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Authors and funding
10 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundAn abrupt increase of thyroid cancer has been witnessed paralleling the supplemented iodine intake in formerly iodine-deficient countries. And increased iodine intake has been linked to the rising incidence rate of papillary thyroid cancer (PTC). However, the correlation between iodine and clinicopathological features of PTC has not been well-characterized. This study aimed to investigate the associations between iodine intake and the clinicopathological features of PTC patients.
methodsThree hundred and fifty-nine PTC patients who received surgical treatment in Peking Union Medical College Hospital from May 2015 to November 2020 were retrospectively reviewed. The associations between urinary iodine (UI), urinary iodine/creatinine ratio (UI/U-Cr), and the clinicopathological features of PTC were analyzed. Univariate and multivariate analysis were performed to investigate the relationship between UI level and central lymph node metastasis (CLNM).
resultsThere were no significant differences in UI in different groups according to the variables studied, except that patients with CLNM had higher UI level than CLNM(-) patients. No associations were found between UI/U-Cr and clinicopathological features except variant subtypes (classic/follicular). After dividing patients into high-iodine group and low-iodine group, more patients were found to have CLNM in the high-iodine group (p = 0.02). In addition, younger age, larger tumor size, and classic variant were positively correlated with CLNM (p < 0.05). Univariate analysis showed that insufficient iodine intake (≤ 99 μg/L) was associated with decreased CLNM risk in PTC. And after defining insufficient iodine intake as ≤ 109 μg/L and above requirements as ≥ 190 μg/L, multivariate analysis showed that lower iodine was associated with CLNM in total population of PTC (OR 0.53, 95% CI 0.31-0.91) and in PTC < 1 cm (papillary thyroid microcarcinoma, PTMC) (OR 0.43, 95% CI 0.21-0.87).
conclusionsLow iodine was a protective factor for CLNM in papillary thyroid cancer, particularly in those < 1 cm. These results indicated that iodine may not only be an initiator of tumorigenesis, but also a promoter of the development of PTC.
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