Hormones. Hormone . Hormone Receptor Agonists . Agonists, Hormone Receptor . Receptor Agonists, Hormone . Hormones, Synthetic . Hormone Analogs . Chemical substances having a specific regulatory effect on the activity of a certain organ or organs. The term was originally applied to substances secreted by various ENDOCRINE GLANDS and transported in the bloodstream to the target organs. It is sometimes extended to include those substances that are not produced by the endocrine glands but that have similar effects. . 1.00
Plant Growth Regulators. Growth Regulators, Plant . Regulators, Plant Growth . Hormones, Plant . Phytohormones . Plant Hormones . Any of the hormones produced naturally in plants and active in controlling growth and other functions. There are three primary classes: auxins, cytokinins, and gibberellins. . 0.78
Gonadal Steroid Hormones. Sex Hormones . Hormones, Gonadal Steroid . Hormones, Sex Steroid . Steroid Hormones, Gonadal . Steroid Hormones, Sex . Sex Steroid Hormones . Steroid hormones produced by the GONADS. They stimulate reproductive organs, germ cell maturation, and the secondary sex characteristics in the males and the females. The major sex steroid hormones include ESTRADIOL; PROGESTERONE; and TESTOSTERONE. . 0.77
Insect Hormones. Hormones, Insect . Hormones secreted by insects. They influence their growth and development. Also synthetic substances that act like insect hormones. . 0.73
Gastrointestinal Hormones. Hormones, Enteric . Hormones, Gastrointestinal . Hormones, Intestinal . Enteric Hormones . Intestinal Hormones . HORMONES secreted by the gastrointestinal mucosa that affect the timing or the quality of secretion of digestive enzymes, and regulate the motor activity of the digestive system organs. . 0.72
Peptide Hormones. Hormones, Polypeptide . Hormones, Peptide . Polypeptide Hormones . Hormones synthesized from amino acids. They are distinguished from INTERCELLULAR SIGNALING PEPTIDES AND PROTEINS in that their actions are systemic. . 0.71