Canine Hormonal Disorders
Just Us Dogs2017-08-06T00:00:00+00:00Hormones are chemical messengers that influence the activity of cells and tissues all round the body. The first hormones to be identified were those produced by discrete, visible glands, such as the thyroid and the pituitary. Later, scientists discovered other messengers, including the brain biochemicals dopamine and serotonin, and trace chemicals called cytokines. New cytokines