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Topic: Hormone


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  ACS :: Hormone Therapy
Hormone therapy will only be effective if the cancer is making either estrogen and/or progesterone receptors.
While estrogen is usually thought of as a "female" hormone, men have it in their bodies as well, although at lower levels.
Hormonal treatments are often used in a sequence in the metastatic setting.
www.cancer.org /docroot/CRI/content/CRI_2_4_4X_Hormone_Therapy_28.asp?rnav=cri   (650 words)

  
  Hormone - MSN Encarta
The majority of hormones are peptides, or amino acid derivatives that include the hormones produced by the anterior pituitary, thyroid, parathyroid, placenta, and pancreas.
Steroid hormones are synthesized from cholesterol (a fatty substance produced by the body) and modified by a series of chemical reactions to form a hormone ready for immediate action.
For example, hormones from the hypothalamus, a portion of the brain that controls the endocrine system, are delivered directly to the adjacent pituitary gland, where their concentrations are several hundred times higher than in the circulatory system.
encarta.msn.com /encnet/refpages/RefArticle.aspx?refid=761573263   (1036 words)

  
  Hormone - Wikipedia, the free encyclopedia
The function of hormones is to serve as a signal to the target cells; the action of hormones is determined by the pattern of secretion and the signal transduction of the receiving tissue.
Hormone actions vary widely, but can include stimulation or inhibition of growth, induction or suppression of apoptosis (programmed cell death), activation or inhibition of the immune system, regulating metabolism and preparation for a new activity (e.g., fighting, fleeing, mating) or phase of life (e.g., puberty, caring for offspring, menopause).
Amine-derived hormones are derivatives of the amino acids tyrosine and tryptophan.
en.wikipedia.org /wiki/Hormone   (924 words)

  
 HGF - Growth Hormone Deficiency   (Site not responding. Last check: )
Hormones are chemicals produced by special cells in glands and other organs of the body; most hormones are produced by cells in the endocrine glands.
One way of testing for growth hormone deficiency is to give the child a substance that causes the release of a growth hormone burst in normal children and measure the amount of growth hormone present in several blood samples obtained over a period of time.
Fortunately, the first biosynthetic growth hormone, which is produced using recombinant DNA technology, was in the- final stages of testing and was approved as safe and effective for use in growth hormone deficient children by the Food and Drug Administration in October, 1985.
www.hgfound.org /growth.html   (2311 words)

  
 AllRefer.com - hormone (Biochemistry) - Encyclopedia
Normally, various hormones are produced and secreted by the endocrine glands (see endocrine system), including the pituitary, thyroid, parathyroids, adrenals, ovaries, testes, pancreatic islets, certain portions of the gastrointestinal tract, and the placenta, among the mammalian species.
The hormones of the anterior pituitary include thyrotropin, adrenocorticotropic hormone, the gonadotropic hormones, and growth hormone; the posterior pituitary secretes antidiuretic hormone, prolactin, and oxytocin.
Plants, too, have a hormonal system, which includes the auxins, the gibberellins, the cytokinins, and substances associated with the formation of flowers, tubers, bulbs, and buds.
reference.allrefer.com /encyclopedia/H/hormone.html   (484 words)

  
 Untitled
Parathyroid hormone (PTH) is released from the parathyroid gland (behind the thyroid) and is used to maintain homeostatic levels of calcium in the blood.
Therefore, a given hormone may have one function in one cell, a totally opposite function in another cell region of the body, and yet a another totally unrelated activity in a third area of the body.
Hormonal signal: The alpha cells of the islets of Langerhans cells release the hormone glucagon into the capillaries of the pancreas.
www.mrs.umn.edu /~goochv/HAP/lectures/hormone/hormone.html   (2349 words)

  
 hormone. The Columbia Encyclopedia, Sixth Edition. 2001-05
Normally, various hormones are produced and secreted by the endocrine glands (see endocrine system), including the pituitary, thyroid, parathyroids, adrenals, ovaries, testes, pancreatic islets, certain portions of the gastrointestinal tract, and the placenta, among the mammalian species.
The hormones of the anterior pituitary include thyrotropin, adrenocorticotropic hormone, the gonadotropic hormones, and growth hormone; the posterior pituitary secretes antidiuretic hormone, prolactin, and oxytocin.
Plants, too, have a hormonal system, which includes the auxins, the gibberellins, the cytokinins, and substances associated with the formation of flowers, tubers, bulbs, and buds.
www.bartleby.com /65/ho/hormone.html   (445 words)

  
 HON Allergy Glossary Hormone
Hormones are substances released into the bloodstream by glands or organs, which affect activity in cells at another site.
Hormones (similar to the cytokines and other mediators) act at low concentrations with very large responses in the body and bind with high affinity to specific receptors.
Hormones control growth and development, reproduction and sexual characteristics as well as exercising a large influence over the body's use of energy.
www.hon.ch /Library/Theme/Allergy/Glossary/hormone.html   (118 words)

  
 HORMONE
Hormones in animals cooordinate body functions by being produced in one place and acting in another.
Ethylene is the only gaseous hormone in the plant world; it is a simple hydrocarbon gas that is derived from the amino acid, methionine, via an unusual cyclic compound which is also an amino acid, ACC (1-aminocyclopropane-1-carboxylic acid).
At the cell level hormones attach to a protein receptor which sends a signal down a transduction pathway to switch on particular genes.
www.hcs.ohio-state.edu /hcs300/hormone.htm   (727 words)

  
 Hormone Information : by Ray Sahelian, M.D.
Other hormone -producing glands throughout the body include the adrenal glands, which primarily produce cortisol; the gonads (i.e., ovaries and testes), which produce sex hormones such as estrogen and testosterone; the thyroid, which produces thyroid hormone; the parathyroid, which produces parathyroid hormone; and the pancreas, which produces insulin and glucagon.
Insulin - this hormone is released by the pancreas.
Prolactin hormone is one of the reproductive hormones
www.raysahelian.com /hormone.html   (4018 words)

  
 HGH - Human Growth Hormone   (Site not responding. Last check: )
Hormones are chemical messengers, traveling through the blood stream and involved in all aspects of the body's activity metabolism, growth, mood and sexual function to name a few.
Being the master hormone, HGH affects virtually all areas of the body influencing the growth of cells, bones, muscles and organs.
Nearly every hormone available for administration has been given to non-deficient people in hope of obtaining improvement for various conditions for which other treatments are unsatisfactory.
hghspray.pillslist.info /report_sgh.html   (471 words)

  
 Hormones, Receptors and Target Cells
Hormones are chemical messengers secreted into blood or extracellular fluid by one cell that affect the functioning of other cells.
Hormone receptors are found either exposed on the surface of the cell or within the cell, depending on the type of hormone.
Hormones are inevitably named shortly after their discovery, when understanding is necessarily rudimentary.
arbl.cvmbs.colostate.edu /hbooks/pathphys/endocrine/basics/hormones.html   (603 words)

  
 Hormone replacement therapy: Benefits and alternatives - MayoClinic.com
Hormone replacement therapy benefits some menopausal women, but there are health risks.
Hormone replacement therapy is still the most effective treatment for troublesome menopausal hot flashes and night sweats.
Hormone replacement therapy continues to be an option for osteoporosis prevention, but it's recommended only when other medications for osteoporosis prevention have been considered and determined not to be best for you.
www.mayoclinic.com /health/hormone-therapy/WO00046   (1478 words)

  
 Hormone Rhythms
Hormone rhythms are the regular patterns in which the levels of different hormones normally fluctuate in the body.
The 24-hour pattern of hormone cycling is referred to as a circadian rhythm and seems to be directed by the "biological clock" in the brain.
These hormonal time-release systems are controlled by the brain and are designed to optimize the body's ability to respond to changes in the surrounding physical environment such as alterations in the light-dark cycle.
www.hormone.org /Public/hormone.cfm   (641 words)

  
 Dr Rosenbaum on Human Growth Hormone   (Site not responding. Last check: )
Daniel Rudman, a hormone specialist in Madison, Wisconsin, had administered growth hormone via injection to a group of twelve healthy men aged 61 to 80 years who had low blood levels of growth hormone and were overweight.
Growth hormone may prove to be the most effective anti-obesity substance ever discovered because it is the hormone which governs how much fat the body releases from its stores to be burned for energy as well as how much sodium and fluid the body needs to retain to maintain hydration.
Growth hormone is released in eight to twelve pulses throughout the day with the largest pulse occurring from midnight to 2:00AM, during slow wave or delta deep sleep.
www.springboard4health.com /products/hgh/hgh_dr_mike_01.htm   (1205 words)

  
 Growth Hormone Deficiency - Prescription Solutions
Hormones are chemical messengers carried through the bloodstream that cause changes in different areas of the body.
The dosage of growth hormone is based on weight; therefore, the amount your child uses will frequently change as he or she grows.
Growth hormone therapy is generally continued until a child reaches his or her adult height and has stopped growing.
www.rxsolutions.com /a/healthinfo/GHD_ChildPatientEd.asp   (952 words)

  
 hormone   (Site not responding. Last check: )
A hormone is a chemical substance secreted in the body by a gland to control the activity of other tissues at a distance.
The hormone may act on the body generally, as thyroid hormone functions rather like the accelerator pedal on a car.
Or a hormone may act to control another gland, as thyroid releasing hormone from the pituitary gland near the brain controls the release of the thyroid hormone.
www.drhull.com /EncyMaster/H/hormone.html   (113 words)

  
 Hormone Balance in Males
The non-protein-bound hormone (referred to a “free”; hormone) on the other hand, is the bioavailable form of the hormone.
When using hormone creams or gels, the hormone is absorbed through the skin and into the blood without first passing through the liver.
Altered, synthetic versions of our natural hormones will not do – they are foreign to the body, do not convey the same benefits as the real hormone, and all are fraught with undesirable side effects not conveyed by the real hormone.
www.johnleemd.com /store/male_hormone.html   (1423 words)

  
 Hormone therapy for menopause: Who should take it and what are the alternatives?
Using hormone therapy to prevent dementia or MCI is no longer recommended for women 65 years of age or older.
Although the number of women who take hormone therapy is diminishing, for some — such as those who have severe hot flashes — the benefits of short-term hormone therapy may still outweigh the risks.
Hormone therapy continues to be an option for osteoporosis prevention, but it's recommended only when other medications for osteoporosis prevention have been tried or considered.
www.cnn.com /HEALTH/library/WO/00046.html   (1463 words)

  
 [No title]
In homeostasis, body levels of acid, blood pressure, blood sugar, electrolytes, energy, hormones, oxygen, proteins, and temperature are constantly adjusted to respond to changes inside and outside the body, to keep them at a normal level.
Hormones circulate in the bloodstream and control the actions of certain cells or organs.
Hormones (estrogen, progesterone, or both) given to women after menopause to replace the hormones no longer produced by the ovaries.
www.cancer.gov /dictionary/db_alpha.aspx?expand=h   (5458 words)

  
 Growth Hormone Deficiency
Growth hormone deficiency, as the name implies, is the absence or deficiency of growth hormone produced by the pituitary gland to stimulate the body to grow.
Growth hormones are produced by the pituitary gland, which is attached to the hypothalamus (a part of the brain that affects the pituitary gland) located at the base of the brain.
Until the 1980s, the only source of human growth hormone was from the pituitary glands of deceased people, where an increased chance of transmission of human diseases from human growth hormone existed.
www.healthsystem.virginia.edu /uvahealth/peds_diabetes/ghd.cfm   (742 words)

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