Low Thyroid Hormone Before Birth May Alter Growth of Pancreas

by Julia Samuel on  February 1, 2017 at 3:50 PM Health Watch
RSS Email Print This Page Comment bookmark
Font : A-A+

Highlights
  • Thyroid hormones promote beta cell proliferation in the fetal ovine pancreatic islets.
  • Growth retardation in hypothyroidism is associated with reductions in pancreatic beta cell mass and circulating insulin concentration.
  • Abnormalities in beta-cell development may lead to increased risk of pancreatic disorders and type 2 diabetes in later life.
Normal levels of thyroid hormone during pregnancy are vital for proper development of the baby. Levels of thyroid hormone in babies influence insulin-secreting cells of the pancreas, according to a new study published in the Journal of Physiology.
Low Thyroid Hormone Before Birth May Alter Growth of Pancreas
Low Thyroid Hormone Before Birth May Alter Growth of Pancreas

The team of scientists from the UK, US, and Australia studied a sheep animal model of thyroid hormone deficiency before birth. They measured levels of three hormones: thyroid hormone, insulin, and leptin. They also studied the rate of cell division and the number of beta cells, the cells of the pancreas that store and secrete insulin.

Approximately 1 in 3000 babies are born each year with an under-developed thyroid gland (congenital hypothyroidism) and 2-4% of pregnant mothers are affected by thyroid disease.

It is important, to find out how thyroid hormone affects the fetal pancreas, and susceptibility to pancreatic disorders and type 2 diabetes in later life. Type 2 diabetes is a disorder of the body's response to the insulin-secreting cells of the pancreas.

This new research found that thyroid hormone levels impair the growth and development the fetal pancreas by affecting the number and rate of cell division of the beta cells.

Figuring out the full picture of how thyroid hormone influences the fetal pancreas will help ensure the health of babies with congenital thyroid hormone disorders and those born to mothers with thyroid hormone disorders.

Dr Shelley Harris, said, "The study highlights a novel role for thyroid hormones in regulating pancreatic development and opens up new questions to be explored."

Senior author Dr Alison J. Forhead added, "In individuals with low thyroid hormone before birth, abnormalities in beta-cell development may lead to increased risk of pancreatic disorders and type 2 diabetes in later life."

Reference
  1. Shelley E. Harris et al., Hypothyroidism in utero stimulates pancreatic beta cell proliferation and hyperinsulinaemia in the ovine fetus during late gestation, The Journal of Physiology (2017) doi:10.1113/JP273555.


Source: Medindia

Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

Related Links

More News on:

Pancreatic Cancer Iodine Deficiency Disorder Hyperthyroidism Hypothyroidism Pancreas Pancreatitis Thyroid Cancer Whipple´s Surgical Procedure Pancreas Transplantation Postpartum Thyroiditis 

News A - Z

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

News Search

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.

Find a Doctor

Stay Connected

  • Available on the Android Market
  • Available on the App Store

News Category

News Archive

Loading...