11.   It produces hormones that regulate important body functions like metabolism, heart rate, cholesterol level, memory and muscle strength.

12.   McBurnett said children with persistent conduct disorders may have a genetic predisposition that causes them to produce hormones differently.

13.   Smith developed chemical reactions that produced the hormone in just the desired shape.

14.   The endocrine system is a collection of glands that produce hormones, chemicals that carry important messages that regulate metabolism, growth, sexual development and sexual function.

15.   The EPA considers it a possible carcinogen, and some scientists suspect it of being a chemical that can disrupt the endocrine system, which produces hormones.

16.   The gene produces a hormone that stimulates the production of immune cells.

17.   The hormone is normally produced by four tiny glands inside the thyroid.

18.   The hormones are produced in bacteria that have the gene that codes for the human hormones spliced into their own DNA.

19.   The more drug the mice received, the more hormone the cells produced.

20.   The ob gene produces a hormone, dubbed leptin, that was reported last month to have caused dramatic weight loss in severely obese mice.