Tuesday, July 4, 2017

Thyroid hormone: Thyroid antibodies and risk of preterm delivery

Kyle J. Norton(Scholar and Master of Nutrients, all right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published on line, including world wide health, ezine articles, article base, healthblogs, selfgrowth, best before it's news, the karate GB daily, etc.,.
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Some articles have been used as references in medical research, such as international journal Pharma and Bio science, ISSN 0975-6299.                     

                                 Thyroid hormone



Thyroid hormone (triiodothyronine (T3) and thyroxine (T4)), produced by the thyroid gland, plays an important role in regulation of metabolism, including directly boosts energy metabolism and triggers rapid protein synthesis and regulates mitochondrial gene transcription, etc. Iodine is necessary for the production of T3and T4, deficiency of Iodine can lead to enlarge thyroid grand and goitre.


     Thyroid hormone: Thyroid antibodies and risk of preterm delivery


In a meta-analysis of prospective cohort studies to evaluate the associations between thyroid antibodies and risk of preterm delivery found that eleven prospective cohort studies involving 35 467 participants were included. The combined RR of preterm delivery for pregnant women with thyroid antibodies compared with the reference group was 1.41 (95% CI 1.08-1.84, P=0.011). Subgroup analysis yielded the combined RR of preterm delivery for pregnant women with TPO-Ab compared with the reference group was 1.69 (95% CI 1.19-2.41, P=0.003), whereas pregnant women with positive TG-Ab had no obvious risk of preterm delivery compared with the reference group (RR=0.88, 95% CI 0.60-1.29, P=0.513). Sensitivity analysis restricted to studies excluding women with thyroid dysfunction yielded similar results. Meta-regression analysis suggested that the status of exclusion or inclusion of women with thyroid dysfunction was the major source of heterogeneity in this meta-analysis(67).



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