Indicators
The most potent form of the naturally occurring steroid sex hormone in humans, produced by ovary, placenta, testis, and in small amount by adrenal cortex. Estradiol binds to a specific intracellular estrogen receptor located in female organs, breasts, hypothalamus and pituitary. The receptor-ligand complex promotes gene expression necessary for the maintenance of fertility and secondary sexual characteristics in females. In addition, estradiol exhibits mild anabolic and metabolic properties, and increases blood coagulability. Estradiol, the principal intracellular human estrogen, is substantially more active at the cellular level than its metabolites, estrone and estriol.
Tests
An estrogen test measures the level of estrogens in a sample of your blood, urine (pee), or saliva (spit).
For everyone & professionals
Tests
The determination of the amount of estrone hormone present in a sample.
For professionals
Article
Research record from Equine Vet J, 2026-09-06. PMID 42702581.
Indicators
A heterodimeric glycoprotein hormone secreted by the gonadotropic cells of the anterior pituitary gland. This hormone is involved in gonadal development, growth, maturation and reproductive processes, including the regulation of spermatogenesis in males and follicular growth and ovulation in females.
Tests
This test measures the level of follicle-stimulating hormone (FSH) in a sample of your blood. A hormone is a chemical messenger in your bloodstream that controls the actions of certain cells or organs. FSH plays an important role in sexual development in children and fertility in adults.
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Indicators
Gastrin-releasing peptide (27 aa, ~3 kDa) is encoded by the human GRP gene. This protein is involved in hormone signaling in both the gastrointestinal and nervous systems.
Tests
This test measures the amount of glucagon in your blood. Glucagon is a hormone made by your pancreas. Hormones are chemical messengers in your bloodstream that control the actions of certain cells or organs. Glucagon works with other hormones, like insulin, to help maintain your body's level of blood glucose , also called blood sugar. Glucagon increases your blood glucose levels, while insulin decreases your blood glucose levels.
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Tests
The determination of the amount of gonadotropin releasing hormone present in a sample.
For professionals
Tests
The determination of the amount of growth hormone releasing hormone present in a sample.
For professionals
Tests
Growth hormone (GH) tests are blood tests that check if your body is making a normal amount of GH. Hormones are chemical messengers in your bloodstream that control the actions of certain cells or organs. GH, also known as human growth hormone, controls your body's growth. It also helps control metabolism, the process your body uses to make energy from the food you eat. GH is made in the pituitary gland , a small organ at the base of your brain that controls many functions, including growth.
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Indicators
A sialoglycoprotein hormone secreted by the placenta and maintains the corpus luteum at the beginning of the gestation period.
