strontium


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Related to strontium: strontium 90, Strontium ranelate

strontium

 [stron´she-um]
a chemical element, atomic number 38, atomic weight 87.62, symbol Sr. (See Appendix 6.)
strontium 89 a radioactive isotope of strontium having a half-life of 50.55 days and decaying by beta emission. It is used in the form of the chloride as a radiation source in the palliative treatment of bone pain in patients with metastatic bone lesions.

stron·ti·um (Sr),

(stron'shē-ŭm),
A metallic element, atomic no. 38, atomic wt. 87.62; one of the alkaline earth series and similar to calcium in chemical and biologic properties. Various salts of strontium are used therapeutically for their anions; for example, strontium bromide, iodide, lactate.
[Strontian, a town in Scotland]

strontium

/stron·ti·um/ (stron´she-um) a chemical element, at. no. 38, symbol Sr.
strontium 89  a radioactive isotope of strontium having a half-life of 50.55 days and decaying by beta emission; used in the form of the chloride as a radiation source in palliation of bone pain caused by metastatic lesions.

strontium (Sr)

[stron′sh(ē)əm]
Etymology: Strontian, Scotland
a metallic element. Its atomic number is 38; its atomic mass is 87.62. Chemically similar to calcium, it is found in bone tissue. Isotopes of strontium are used in radioisotope scanning procedures of bone. Strontium 85 (85Sr) and strontium 87 (87Sr) mimic calcium metabolism and are used in studies of bone physiological characteristics and disorders. These radionuclides can be counted with any standard detector or imaged at a very early stage in bone disease, whereas radiographic films of bone without the use of a radioactive tracer can show decreased density only after approximately 50% of bone is decalcified. Most 85Sr or 87Sr is deposited in bone within 1 hour after injection. Increased deposition of these radionuclides is strongly linked to osteoblastic activity and new bone formation. In addition to four naturally occurring isotopes (88Sr, 87Sr, 86Sr, and 84Sr), 12 artificial strontium isotopes are produced by nuclear reactions. Strontium 90, the longest-lived, is the most dangerous constituent of fallout from atomic bomb tests. It can replace some of the calcium in food, become concentrated in teeth and bones, and continue to emit electrons that can cause death in the host. Strontium 90 becomes concentrated in cow's milk.

stron·ti·um

(Sr) (stron'shē-ŭm)
A metallic element; atomic no. 38, atomic wt. 87.62; one of the alkaline earth series and similar to calcium in chemical and biologic properties. Various salts of strontium are used therapeutically for their anions, e.g., strontium bromide, iodide, lactate.
[Strontian, a town in Scotland]

stron·ti·um

(Sr) (stron'shē-ŭm)
A metallic element; one of the alkaline earth series and similar to calcium in chemical and biologic properties.
[Strontian, a town in Scotland]

strontium (Sr) (stron´chēəm),

n a metallic element. Its atomic number is 38 and its atomic weight is 87.62. It is chemically similar to calcium and is found in bone tissue. Isotopes of strontium are used in radioisotope scanning procedures of bone.

strontium

a chemical element, atomic number 38, atomic weight 87.62, symbol Sr. See Table 6.

strontium-90
is deposited in bones and removed with great difficulty. It has a very long half-life (28.1 years) and if sufficient is ingested it will have the same toxic and teratogenic effects as external irradiation. S-90 plates are used in the treatment of superficial squamous cell carcinomas involving the eye.
strontium chloride
experimental feeding to pigs causes gross bone abnormality and weakness and paralysis.
References in periodicals archive ?
In osteoblast, strontium (Sr) activates osteoblastogenesis by promoting osteoblastic cell replication and differentiation, and reducing apoptosis by mechanisms involving activation of CaSR results in enhanced extracellular signal regulated kinases (ERK1/ 2) (17).
Distribution of strontium in the skeleton and in the mass of mineralized bone.
Monitoring bone strontium intake in osteoporotic females self-supplementing with strontium citrate with a novel in-vivo X-ray fluorescence based diagnostic tool.
Another study suggested that addition of 43ppm strontium with fluoride enhances the formation of flu- oride substituted apatite up to higher concentrations of fluoride.
Yet another advantage with Strontium Ranelate is that it has physiological mode of action and works on catabolic activity as well.
The new strontium clock is so precise it would neither gain nor lose one second in about 5 billion years, if it could operate that long.
3 mg strength, each esomeprazole strontium capsule provides the equivalent of 40 mg of esomeprazole--the same amount of esomeprazole that is present in the 40 mg Nexium capsule.
This work is supported by the Scientific Research Project Fund of Cumhuriyet University under the Project number "T-499" Strontium chloride hexahydrate (SrCl2 6H2O) was purchased from Sigma-Aldrich (255521) and its 3% (w/v) concentration was prepared with sterile water freshly.
The samples of strontium 90, which has a half life of 28.
On entend par la, les mesures hygieno-dietetiques, le traitement des pathologies inductrices ou l'administration de traitements medicamenteux innovants, tels que le Ranelate de strontium, permettant de prevenir les fractures osteoporotiques,
The osteoporosis drug strontium ranelate, available in Europe but not yet approved by the U.