Peptide hormones are secreted in the endocrine glands to regulate many physiological functions.
What is the function of the peptide hormone?
They include growth and appetite, improving metabolism, improving heart function, and reducing feelings of stress. In short, a peptide hormone performs a wide range of physiological processes in the body.
What is the difference between peptide and steroid hormones?
Hormones are produced by the endocrine glands in the body and transported throughout the body through blood circulation. Steroid hormones are made of cholesterol while peptide hormones are made of amino acids. The main difference between steroid hormones and peptide hormones is that steroid hormones bind to cell surface receptors and act as second transmitters of signals whereas peptide hormones bind mainly to DNA in the nucleus for transcription modification. Testosterone and estrogen are two examples of steroid hormones and anti-diuretic hormone (ADH), and calcitonin is an example of peptide hormones.