hormone

Definitions

  • WordNet 3.6
    • n hormone the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: The colour blue has a calming effect. It causes the brain to release calming hormones
    • Hormone (Physiological Chem) A chemical substance formed in one organ and carried in the circulation to another organ on which it exerts a specific effect on cells at a distance from the producing cells; thus, pituitary hormones produced in the brain may have effects on cells in distant parts of the body..
    • Hormone (Physiological Chem) a chemical substance, whether natural or synthetic, that functions like a hormone in a living organism. Thus, synthetic steroid hormones may be more effective than their natural counterparts.
    • Hormone (Bot) A substance that controls growth rate or differentiation in plants; also called phytohormone. The most well-known are the auxins that stimulate growth at the growing tips of plants, and control root formation and the dropping of leaves; and the gibberellins, which are used in agriculture to promote plant growth.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
From Gr. "orma`ein to excite

Usage

In literature:

Normally, I was the soul of sweetness in the morning, when I was hormonally enhanced, anyway.
"Down and Out in the Magic Kingdom" by Cory Doctorow
These various hormones or chemical controllers in the blood interact in a nicely balanced chemical system.
"Taboo and Genetics" by Melvin Moses Knight, Iva Lowther Peters, and Phyllis Mary Blanchard
Calhoun brought out hormones and enzymes and medicaments from the Med Ship while the guard in the ship looked on.
"This World Is Taboo" by Murray Leinster
Only the valuable plant hormones from Mars made commerce possible at the ridiculously high freight rate.
"Badge of Infamy" by Lester del Rey
SEX-LIMITED, a term applied to traits which differ in the two sexes, because influenced by the hormones of the reproductive glands.
"Applied Eugenics" by Paul Popenoe and Roswell Hill Johnson
The use of synthetic plant hormones on cuttings of nut-tree species has been of questionable value.
"Northern Nut Growers Association Report of the Proceedings at the Forty-Second Annual Meeting" by Northern Nut Growers Association
In exchange for food, oxygen and comfort, the brain-symbiote must generate hormones and enzymes that enable the magter to survive.
"Planet of the Damned" by Harry Harrison
We can predict what will happen when massive doses of hormones and enzymes and such are used.
"Anything You Can Do ..." by Gordon Randall Garrett
Cyclical is involuntary, caused by the normal buildup of egerin, since that hormone cannot be metabolized alone.
"Concordance" by Ann Wilson
In other words, the hormones of goat and man agree.
"The Goat-gland Transplantation" by Sydney B. Flower
Calhoun brought out hormones and enzymes and medicaments from the Med Ship while the guard in the ship looked on.
"Pariah Planet" by Murray Leinster
And I'm not a life hormone expert.
"Let'em Breathe Space" by Lester del Rey
Hormone treatment and genetic manipulation, plus a thorough reconditioning while the treatment was taking place.
"Thy Name Is Woman" by Bryce Walton
Hormones, 92, 239, =240=.
"The Chemistry of Plant Life" by Roscoe Wilfred Thatcher
He had undergone regimens of antioxidants and injections of human growth hormone.
"Syndrome" by Thomas Hoover
***

In poetry:

Alas! These scientists of Sweden
I curse, who've robbed me of my Eden;
Who with their weird hormones inhuman
Can make a man into a woman.
Alas, poor Eric! . . . Erico
I wish you were in Jerico.
"Erico" by Robert W Service

In news:

Christine Northrup answers viewers' questions during her hormone replacement therapy webcast.
Christiane Northrup explains the history of hormone replacement therapy .
Bioidentical hormone replacement therapy and the fountain of youth.
A Nurses' Health Study by Harvard's Brigham and Women's Hospital found that women who use hormone replacement therapy (HRT) are twice as likely to develop asthma as are women who do not take HRT.
For years the medical field considered hormone replacement therapy to be the fountain of youth for women.
Hormone Replacement Therapy .
We are concerned that the wrong message may have gone to clinicians from the Milan hormone replacement therapy (HRT) conference.
1 suggest that, in our study investigating the effects of progestagen-containing hormone replacement therapy (HRT) on heart rate variability.
A review of studies suggests long-term hormone replacement therapy increases risk of cancer, cardiovascular problems, and other serious conditions.
Hotflash & the Hormones.
Federal health officials are taking a second look at a treatment for menopausal hot flash es, saying their approval of a hormone combination 27 years ago was not based on substantial evidence.
New research suggests that women who take hormone replacement therapy in the early stages of menopause may have a reduced risk of heart attack, heart failure or dying.
The timing of the hormone replacement therapy is key -- with younger women seeing benefits, according to research published in BMJ.
BOSTON — Some experts are rethinking their reluctance about the use of hormone replacement therapy for menopausal women.
Ten years ago, a major study, called the Women's Health initiative, concluded that the benefits of hormone replacement thereapy were outweighed by risks, such as breast cancer.
***

In science:

This is a re-analysis of data from a case-control study examining the relationship of postmenopausal hormone therapy and the risks of myocardial infarction (MI) and ischemic stroke in which we reported no overall increase or decrease in the risk of either event.
Statistical adjustment for a measure of healthy lifestyle doesn't yield the truth about hormone therapy
It involved recruitment and randomization of more than 18,000 postmenopausal women to hormones or placebo.
Statistical adjustment for a measure of healthy lifestyle doesn't yield the truth about hormone therapy
Prior observational research found no effect of hormone therapy on stroke (Psaty et al. ).
Statistical adjustment for a measure of healthy lifestyle doesn't yield the truth about hormone therapy
The study neither confirmed nor ruled out a lower risk of MI or stroke in hormone users.
Statistical adjustment for a measure of healthy lifestyle doesn't yield the truth about hormone therapy
Adjusted estimates of the relative risk of MI and stroke were both, however, less than 1.0 in current E and EP users compared with never hormone users, a finding inconsistent with WHI.
Statistical adjustment for a measure of healthy lifestyle doesn't yield the truth about hormone therapy
Study methods and results examining the association of hormone therapy with the risk of stroke and MI after adjustment for traditional confounders are described in detail in two prior publications (Petitti et al. and Sidney et al. ).
Statistical adjustment for a measure of healthy lifestyle doesn't yield the truth about hormone therapy
We defined current hormone use as “yes” for hysterectomized women who used E within 1 month of the index date; current hormone use was defined as “yes” for non-hysterectomized women who used E/P within 1 month of the index date; and “no” otherwise.
Statistical adjustment for a measure of healthy lifestyle doesn't yield the truth about hormone therapy
The same hormone has the opposite effect depending on the sex of the cells.
A Developmental Network Theory of Gynandromorphs, Sexual Dimorphism and Species Formation
Hence, a hormone which would be distributed evenly and effect both sides of the organism could not be responsible for the different phenotypes observed in the Rooster-Hen.
A Developmental Network Theory of Gynandromorphs, Sexual Dimorphism and Species Formation
While it should have been obvious, even without this result, that a hormone, which is a relatively simple molecule, cannot contain the complex control information necessary for the development of the different complex morphologies that distinguish males and females.
A Developmental Network Theory of Gynandromorphs, Sexual Dimorphism and Species Formation
Developmental control networks and not hormones determine the morphology of each bilateral half of a gynandromorph.
A Developmental Network Theory of Gynandromorphs, Sexual Dimorphism and Species Formation
However, after hatching, although it has been shown that this hormone is involved in the control of parental behaviour in altricial birds (Silverin and Goldsmith, 1984; Hall et al., 1986; Schoech et al., 1996; Lormée et al., 1999), its role in precocial species is more controversial (Goldsmith, 1991).
Post-hatching parental care behaviour and hormonal status in a precocial bird
While data for common eiders, Somateria mollissima, suggest that a threshold prolactin level should be reached to promote parental care (Criscuolo et al., 2002), the direct link between the hormonal status and the intensity of this behaviour has in fact never been specifically explored.
Post-hatching parental care behaviour and hormonal status in a precocial bird
ANCOVA using weeks as a covariable was used to test for differences of parental care behaviour index and hormone concentrations between females.
Post-hatching parental care behaviour and hormonal status in a precocial bird
Thus, conversely to altricial species, this hormone was generally considered not to be involved in parental care during young-rearing in precocial birds (see Goldsmith, 1991 for a review).
Post-hatching parental care behaviour and hormonal status in a precocial bird
***