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 hormone ['hɒ:mәun]   添加此单词到默认生词本
n. 荷尔蒙

[化] 激素(旧称荷尔蒙)

[医] 激素




    hormone
    [ noun ]
    the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect
    <noun.body>


    Hormone \Hor"mone\ (h[^o]r"m[=o]n), n. [From Gr. "orma`ein to
    excite.]
    1. (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..
    [Webster 1913 Suppl. +PJC]

    2. (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.
    [PJC]

    3. (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.
    [PJC]

    1. The hormone ban was imposed because of European concerns the stimulants pose a health risk to consumers, a claim the United States disputes.
    2. Most scientists believe the real future of growth hormone isn't as a general youth tonic but as a specific disease treatment that improves the strength and function of atrophied bodies.
    3. Of those who took the hormone tablets, 60% said their appetite and food intake improved while only about 40% of those who took the placebo reported such improvements, the researchers reported in the Journal of the National Cancer Institute.
    4. Eli Lilly Co. is crystallizing human growth hormone, which now is used to spur growth in children with certain growth disorders.
    5. The daily tablets help older women compensate for their falling natural hormone production and relieve the unpleasant side effects of menopause.
    6. His dozen elderly men found the benefits were temporary, with the lean muscle dissolving back into fat once the hormone injections ceased.
    7. The pill is an anti-hormone that works against the female hormone progesterone, which is vital to a normal pregnancy.
    8. The hormone, a synthetic progestin, has been used safely for years, council officials say.
    9. But the HDL and LDL levels of women who were administered hormone supplements were basically unchanged.
    10. The latest action is based on documents he obtained under the Freedom of Information Act that Rifkin says show the dairy board was working in collusion with the growth hormone's makers to promote it.
    11. Amgen Inc. and F. Hoffman-LaRoche & Co. agreed to market in Europe Amgen's blood-cell growth hormone that is being tested in patients to help counteract a major side effect of cancer treatment.
    12. Supporters of the hormone warned that Wisconsin dairy farmers could be hurt if the state became an "island" surrounded by states that permitted its use.
    13. Genentech's other big product, its Protropin brand human-growth hormone, enjoyed a sales rise of 18% to $185.1 million from $157.1 million in 1990.
    14. Authorities last week arrested veal producer Felix Hying of Borken in the northwestern part of the country after discovering illegal hormone use.
    15. Of those who took the hormone for the minimum 10 weeks of the experiment, 16% had a weight gain of 15 pounds or more while only 2% of those who took the placebo had such a weight gain.
    16. BGH is an experimental hormone that is designed to boost cows' production by as much as one-third.
    17. The study will try to determine whether hormone drugs take the place of natural estrogen in protecting the hearts of older women.
    18. Ten medical centers in the U.S. are testing the synthesized hormone on some 200 to 300 patients.
    19. The overabundance of this hormone, called thyroxine, speeds up the body's chemical reactions.
    20. FDA officials are intent on explaining why they authorized the sale of milk from BGH-treated cows in 1985 when they approved field tests of the hormone.
    21. But a similar hormone that boosts milk production in cows has been widely opposed by dairy farmers and consumer groups.
    22. As one ages, the natural production of the hormone fades and eventually stops, researchers have learned.
    23. Scientists at Amgen Inc. and Memorial Sloan-Kettering Cancer Center said a blood-cell growth hormone can help counteract one of the major side effects of cancer treatment.
    24. Scientists say the prospect of unlimited supplies will spur research into other possible uses of the hormone: reducing weight, healing wounds, treating bone diseases, and retarding wrinkling and other symptoms of aging.
    25. The new hormone, nafarelin, was developed by Syntex Corp. and is administered as a nasal spray.
    26. Rifkin said the hormone "has no redeeming social value" and is bad for farmers, cows, taxpayers and, perhaps, consumer health.
    27. An unknown quantity of the hormone - extracted from the pituitary glands of corpses - was contaminated with the disease, a human version of BSE or 'mad cow' disease.
    28. Women shouldn't throw out their thyroid prescriptions even though a commonly prescribed hormone may cause some long-term thinning of the bones, a doctor said.
    29. The action was called a victory by opponents of the hormone, who had argued that it would cause a milk glut and lower prices.
    30. Consumers Union, which publishes the magazine, called on the FDA to reopen its investigation of the human safety of the hormone while it pursues its review of the hormone's effects on animal health.
    hormone
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    Hormuz
    horn
    horn and corn
    horn angle
    horn antenna
    horn anvil
    horn arrester
    horn balance
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