Different in degree or kind (Introduction)

by David Turell , Wednesday, February 05, 2014, 15:57 (3726 days ago) @ David Turell

Human brain development depends upon thyroid hormone:-"A combination of ECM and thyroid hormones thus appears necessary for basal progenitors to proliferate and produce enough neurons for brain development. Human brain stem cells produce the suitable environment naturally. "That is probably how, in the course of evolution, we humans developed larger brains", says Wieland Huttner, summing up the study. The research produced another important finding: "We were able to explain the role of iodine in embryonic brain development at the cellular level", says Denise Stenzel. Iodine is essential for the production of thyroid hormones, and an iodine deficiency in pregnant women is known to have adverse effects on the brain development of the unborn child."-http://medicalxpress.com/news/2014-02-pivotal-role-stem-cell-environment.html