[Home ] [Archive]   [ فارسی ]  
:: Main :: About :: Current Issue :: Archive :: Search :: Submit :: Contact ::
:: Volume 1, Issue 2 ((Journal of Clinical and Basic Research (JCBR) 2017) ::
jcbr 2017, 1(2): 44-49 Back to browse issues page
Nausea and Vomiting Due to Transient Hyperthyroidism in the First Trimester of Pregnancy: A Review
Ali Reza Ahmadi , Ezatolah Ghaemi , Akhtar Saifi , Hady Reza Mansourian , Azad Reza Mansourian *
Abstract:   (128 Views)

Human chorionic gonadotropin (hCG) is a glycoprotein hormone produced by the placenta, which has a similar structure to thyroid-stimulating hormone (TSH).Due to this similarity, hCG could exhibit TSH-like activity and stimulate thyroid gland to produce thyroid hormones, particularly thyroxine (T4).This condition is often seen at end of the first trimester of pregnancy (weeks 10-12). In these cases, maternal serum TSH concentration is reduced and T4 level is elevated, causing overt hyperthyroidism that could lead to thyrotoxicosis if remain untreated. Pregnant women with hyperemesisgravidarum experience nausea and vomiting. These subjects seem to have elevated levels of serum hCG, particularly at the end of the first trimester when it reaches its peak, eventually leading to hyperthyroidism. There are some reports suggesting that hyperemesis gravidarum might be due to hyperthyroidism associated with elevated hCG in pregnant women at weeks10-12 of pregnancy.

Keywords: Pregnancy, Human chorionic gonadotropin (hCG), hyperthyroidism, nausea and vomiting
Full-Text [PDF 284 kb]   (174 Downloads)    
Type of Study: Research |
Received: 2017/08/14 | Accepted: 2017/08/14 | Published: 2017/08/14
Add your comments about this article
Your username or Email:

Write the security code in the box >



XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Ahmadi A R, Ghaemi E, Saifi A, Mansourian H R, Mansourian A R. Nausea and Vomiting Due to Transient Hyperthyroidism in the First Trimester of Pregnancy: A Review. jcbr. 2017; 1 (2) :44-49
URL: http://jcbr.goums.ac.ir/article-1-59-en.html
Volume 1, Issue 2 ((Journal of Clinical and Basic Research (JCBR) 2017) Back to browse issues page
Journal of Clinical and Basic Research Journal of Clinical and Basic Research
Persian site map - English site map - Created in 0.047 seconds with 802 queries by yektaweb 3531