Results 201 to 210 of about 11,798 (242)

Diphosphonate und Harnsteinbildung [PDF]

, 1974
Die Harnsteine bestehen zum grosten Teil aus kristallinem Material, wie Calciumoxalat, Calciumphosphat, Magnesiumammoniumphosphat, Urat oder Harnsaure, worunter die Calciumsalze den wichtigsten Platz einnehmen. Somit ist in der Pathophysiologie der Harnsteinbildung die Ausfallung dieser Substanzen von wesentlicher Bedeutung.
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Benign myocardial uptake of hydroxymethylene diphosphonate

Nuclear Medicine Communications, 1994
During 'routine' bone scanning with diphosphonates, 10 elderly men were noted to show prominent myocardial uptake of Tc-hydroxymethylene diphosphonate (HDP) consistently, but no heart activity was seen with Tc-methylene disphosphonate (MDP). None had evidence of recent myocardial injury and the uptake persisted over a period of many months.
Jones A, Keeling D
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Pyrophosphate and diphosphonates in skeletal metabolism. Physiological, clinical and therapeutic aspects.

Clinical Orthopaedics and Related Research, 1975
Pyrophosphate and diphosphonates produce striking results on calcium metabolism in experimental animals and man. Compounds containing P-O-P- bonds (e.g.
R. Russell, H. Fleisch
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Skeletal uptake of diphosphonate: A review

European Journal of Nuclear Medicine, 1980
The diphosphonates are currently the skeletal imaging agents of choice and while extremely sensitive for bony abnormality their mechanism of action remains poorly understood. The current concepts in bone uptake mechanisms are reviewed and it is concluded that diphosphonate uptake is most likely related to sites of newly forming bone with diphosphonate ...
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Comparative antiinflammatory and bone protective effects of two diphosphonates in adjuvant arthritis.

Arthritis & Rheumatism, 1979
The effects of disodium ethane-1-hydroxy-1,1-diphosphonate (EHDP) and disodium dichloromethane diphosphonate (Cl2MDP) were evaluated in the rat adjuvant model of arthritis to directly compare their ability to inhibit arthritic processes.
L. Flora
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Preparation, characterization, and structure of zirconium fluoride alkylamino-N,N-bis methylphosphonates: a new design for layered zirconium diphosphonates with a poorly hindered interlayer region.

Journal of the American Chemical Society, 2002
This paper reports the preparation and characterization of the homologous series of layered zirconium fluoride n-alkylamino-N,N-bis methylphosphonates, of general formula ZrF(O(3)PCH(2))(2)NHC(n)H(2n+1) (n = 1, 2, 3, 4, 5, 6, 8, 9, 10), in which the two ...
U. Costantino, M. Nocchetti, R. Vivani
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Diphosphonates in the evaluation of metabolic bone disease

Clinical Rheumatology, 1982
The bone scan may be of value in the assessment of patients with metabolic bone disease. However the superiority of the bone scan when compared to radiology in conditions such as renal osteodystrophy, osteomalacia, primary hyperparathyroidism, and osteoporosis requires substantiation with the newer radiopharmaceuticals which have a higher affinity for ...
M. L. Smith, I. Fogelman
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S+I- ionic formation mechanism to new mesoporous aluminum phosphonates and diphosphonates

, 2004
Pure mesoporous aluminum phosphonates and diphosphonates have been synthesized through an S+I- surfactant-assisted cooperative mechanism by means of a one-pot preparative procedure from aqueous solution and starting from aluminum atrane complexes and ...
J. Haskouri, C. Guillem, J. Latorre, A. Beltrán, A. Beltrán, P. Amorós   +5 more
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Diphosphonates: History and mechanisms of action

Metabolic Bone Disease and Related Research, 1981
The history of diphosphonates began with studies of inorganic pyrophosphate. This compound was found to occur in many biological fluids and inhibited the precipitation of calcium phosphates. It also slowed the transformation of amorphous calcium phosphate to its crystalline form, and inhibited crystal aggregation and dissolution.
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Structure of tetrathallium methylene diphosphonate

Materials Chemistry and Physics, 1985
Tl4CH206P2 was found to be monoclinic C2/c, a = 12.647 (6), b = 8.314 (5), c = 9.782 (4), β = 103.0 (9)°, Z = 4. The structure was solved with MULTAN and refined to R(Fo) = 0.075 for 1636 reflections measured with MoKα radiation. The crystal structure can be regarded as being built up of isolated MDP linked together by Tl+ ions.
N. Hmimid, R. Chevalier, Jean-Pierre Besse   +2 more
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