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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Disodium 1-hydroxy-3-(1-pyrrolidinyl)-propylidene-1,1-bisphosphonate (EB-1053) is a potent inhibitor of bone resorption in vitro and in vivo.

The ability of the new nitrogen-containing bisphosphonate disodium-1-hydroxy-3-(1-pyrrolidinyl)-propylidene-1,1-bisphosphona te (EB-1053) to inhibit osteoclastic resorption was examined in vitro and in vivo. Results were compared to those obtained with 3-amino-1-hydroxypropylidene-1,1-bisphosphonate (pamidronate or APD). In vitro, when tested in osteoclast precursor-dependent systems (fetal mouse metacarpals and a coculture system), EB-1053 suppressed 45Ca release effectively and was found to be about 10 times more potent than pamidronate (ED50 = 2.5 x 10(-7) versus 2.5 x 10(-6) M, respectively). The EB-1053-inhibited osteoclastic resorption could be reversed by treatment with parathyroid hormone (PTH). In vivo, daily subcutaneous injections of EB-1053 to young growing rats for 7 days increased metaphyseal bone mass in tibiae dose dependently. In these experiments EB-1053 was about 50 times more potent than pamidronate. These studies show that EB-1053 is a very potent bisphosphonate that has potential use in the treatment of skeletal disorders.[1]

References

  1. Disodium 1-hydroxy-3-(1-pyrrolidinyl)-propylidene-1,1-bisphosphonate (EB-1053) is a potent inhibitor of bone resorption in vitro and in vivo. van der Pluijm, G., Binderup, L., Bramm, E., van der Wee-Pals, L., De Groot, H., Binderup, E., Löwik, C., Papapoulos, S. J. Bone Miner. Res. (1992) [Pubmed]
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