### entity:

Prolactin
* Most prolactin promotes secretion
  - regulates development
  - stimulates mammary glands
* Some prolactin has expression
  - promotes development
  - suppresses ovulation
* activates breast tissue.
* acts on the breasts in female mammals to stimulate milk production
  - human breast to produce milk
* affects the menstrual cycle and milk production.
* causes mammary growth in combination with other hormones
  - more milk to be produced, and also causes a wonderful feeling of well-being
  - the mammary glands to produce milk after childbirth
* controls mammary gland development via direct and indirect mechanisms.
* exists in three heterogenic forms which possess varying biological activity.
  - also known as luteotropic hormone
  - associated with the production of breast milk
  - commonly over-produced by the pituitary gland
* hormone produced by the anterior pituitary
  - pituitary gland in the brain
  - secreted by the brain
  - that induces lactation or milk formation
* hormone that is instrumental in emotional tear production
  - integrally involved in mammary gland development and lactation
  - stimulates the breasts to produce milk in pregnant women
* is also important in inhibiting ovulation.
* is an agent
  - important regulator of mammary gland differentiation and growth
  - another hormone made in the pituitary gland
  - capable of both trophic and lytic actions in rat corpora lutea
  - essential to the final stages of pregnancy and birth
  - gonadotropin
  - inhibited, the oestrogen levels rise and fertile cycles return much sooner
  - involved in the development of the mammary gland and initiation of milk secretion
  - known to cause spasms and muscle contractions in humans
  - made by the pituitary gland and stimulates milk production
  - measured if testosterone is low or if there is loss of libido
  - necessary for the start of lactation
  - peptide hormones
  - present in each member of the pack, male and female
  - produced in the stress response of both rats and humans
  - proteins
  - responsible for regulating milk production while insulin regulates blood sugar levels
* is secreted into milk at levels representative of the average circulating concentration
  - near the end of pregnancy and prepares the breasts for milk production
* is the hormone most frequently produced in excess by pituitary tumors
  - responsible for the production of breast milk
* is the hormone that controls milk production
  - helps synthesize milk
  - makes milk
  - produces milk
* is the hormone that stimulates milk production by the breasts
  - the cells in the mother's breast to produce milk
  - triggers milk production in pregnant women
  - which promotes milk production
* is the hormone which stimulates milk production
  - milk-making hormone
  - only pituitary hormone to be under tonic inhibitory control
  - pituitary hormone which causes broodiness
* matures the alveolar cells to a functional condition.
* pituitary hormone that causes breast milk production, or lacation, in mammals.
* plays a major role in mam-mary gland secretion and the maintenance of lactation.
* protein hormone secreted from the anterior pituitary gland.
* relaxes the mother and stimulates the alveoli to produce more milk.
* seems to be the primary hormonal regulator of lactogenesis and lactation in marsupials.
* stimulates additional milk production
  - mitosis of cells in the breast
* stimulates the breast to produce milk during pregnancy
  - production of milk in females
* stress hormone that is released episodically throughout the day.
* tells the breasts it is time to begin producing large amounts of milk.