نتایج جستجو برای: strontium determination

تعداد نتایج: 257826  

2000
Randell L. Mills Mark Nansteel Ying Lu

We report the observation of intense extreme ultraviolet (EUV) emission from incandescently heated atomic hydrogen and atomized strontium. Typically the emission of extreme ultraviolet light from hydrogen gas is achieved via a discharge at high voltage, a high power inductively coupled plasma, or a plasma created and heated to extreme temperatures by RF coupling (e.g. > 10 6 K) with confinement...

Journal: :The New England journal of medicine 2004
Ghada El-Hajj Fuleihan

Osteoporosis was originally described in literature and art hundreds of years ago. Our ability to treat this disease lay dormant for centuries, but in the past 10 years, clinical trials have improved treatment options and efficacy. In this issue of the Journal , Meunier et al. 1 report on their study of the safety and effectiveness of strontium ranelate as a putative, novel therapy for osteopor...

Journal: :Biomaterials 2010
Eileen Gentleman Yann C Fredholm Gavin Jell Nasrin Lotfibakhshaiesh Matthew D O'Donnell Robert G Hill Molly M Stevens

Bioactive glasses (BG) which contain strontium have the potential to combine the known bone regenerative properties of BG with the anabolic and anti-catabolic effects of strontium cations. Here we created a BG series (SiO(2)-P(2)O(5)-Na(2)O-CaO) in which 0-100% of the calcium was substituted by strontium and tested their effects on osteoblasts and osteoclasts in vitro. We show that ions release...

Journal: :Journal of dental research 1973
M G Dedhiya F Young W I Higuchi

Dissolution rates and apparent solubilities for synthetic hydroxyapatite in acetate buffers containing phosphate and strontium ions in the range of 10-3 to 10-2 M were determined under various pH and buffer conditions. Critical examination of the role of strontium with a physical model suggests that a calcium-strontium apatite surface complex may govern the driving force of the dissolution reac...

2015
Jingbo Yu Jackson Tang Zhiyi Li Shiva Sajjan Christopher O’Regan Ankita Modi Vasilisa Sazonov

PURPOSE To estimate the proportion of osteoporosis patients in whom initiating strontium ranelate treatment, under new EMA guidelines, should be contraindicated because of a history of cardiovascular events or risk for cardiovascular events. MATERIALS AND METHODS This was a retrospective analysis of medical and pharmacy claims using the Clinical Practice Research Datalink database. Patients w...

2014
Esat Korgali Gokce Dundar Kubra Acikalin Coskun Melih Akyol Yusuf Tutar Semih Ayan Gokhan Gokce Emin Yener Gultekin

Introduction. Strontium salts are anti-irritants for chemically induced sensory irritation. Interstitial cystitis is a painful disease without definitive therapy. The aim of the study was to determine the effect of strontium in bladder with experimental interstitial cystitis model. Material and Methods. Rats' bladders in control group were instilled with NaCl. Second group was instilled with E....

2016
Jonathan Fitzsimmons Igor Medintz

Strontium-82 is produced by proton activation of a rubidium chloride target in an accelerator or cyclotron and purified by ion exchange chromatography. The Strontrium-82 is used in Cardigen generators to produce Rubidium-82 for cardiac imaging. Quality control testing of the purified Strontium-82 is performed with Inductively Coupled Plasma-Optical Emission spectroscopy (ICP-OES) and gamma spec...

2014
Xingfu Bao Xianjun Liu Yi Zhang Yue Cui Jindan Yao Min Hu

Cementogenesis, performed by cementoblasts, is important for the repair of root resorption caused by orthodontic treatment. Based on recent studies, strontium has been applied for osteoporosis treatment due to its positive effect on osteoblasts. Although promising, the effect of strontium on cementoblasts is still unclear. So the aim of this research was to clarify and investigate the effect of...

2016
Maiquan Wang Qingqing Liu Chao Yang Yuanyuan Zhang

Objective: To investigate the impact of strontium ranelate on implant osseointergration of osteoporotic rats in vivo experiment. Method: Thirty-six female rats were randomly divided into three groups: ovariectomization group (A=12), strontium ranelate low-dose treatment group (B=12) and strontium ranelate high-dose treatment group (C=12). After the success of the osteoporosis model building, HA...

Journal: :Mineral and electrolyte metabolism 1985
P J Marie M T Garba M Hott L Miravet

The effects of low doses of oral stable strontium (0.19-0.40% of strontium chloride) on mineral and bone metabolism were examined in normal rats using biochemical and histomorphometrical methods. The strontium levels in serum and bone rose according to the intake of the element. Oral strontium supplementation did not produce deleterious effects on body growth or on mineral homeostasis except a ...

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