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Life in the Arctic is affected by cold winters, short summers, and excessive intake of iodine from the traditional Inuit diets that have lived in the Arctic for hundreds of years
.
Recently, a research article was published in Thyroid, an authoritative journal in the field of thyroid diseases, in which researchers aimed to investigate the thyroid function of residents of Greenland
.
The study is a cross-sectional population-based study.
Researchers collect data in capital cities in West Greenland and rural East Greenland, and use questionnaires to obtain information about subjects' life>
.
The researchers measured the levels of thyroid-stimulating hormone (TSH), free thyroxine (fT4), free triiodothyronine (fT3), thyroglobulin (TG) and thyroglobulin antibody (TGAb) in the subjects’ serum.
1% of the Greenland population was invited to participate in the study, of which 535 participated, and the overall participation rate was 95%
.
The iodine excretion of the subjects in Eastern Greenland was 225ug/24 hours, and the iodine excretion of the West Greenland Inuit was 169ug/24 hours
It can be seen that hyperthyroidism is common in Inuit, and the incidence of hypothyroidism is low
.
The prevalence of hyperthyroidism and hypothyroidism in Greenland Inuit people with sufficient iodine intake is comparable to that in iodine deficient populations
Inuit hyperthyroidism is common and the incidence of hypothyroidism is low
Original source:
Paneeraq Noahsen,et al.
