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In vivo23Na NMR studies of myotonic dystrophy

✍ Scribed by Tammar Kushnir; Tatyana Knubovets; Yacov Itzchak; Uzi Eliav; Menachem Sadeh; Lubov Rapoport; Edna Kott; Gil Navon


Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
455 KB
Volume
37
Category
Article
ISSN
0740-3194

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✦ Synopsis


Abstract

Myotonic dystrophy is an inherited multi‐system disease. Its pathophysiology leading to muscle malfunction and damage is not well understood. ^23^Na NMR spectroscopy was applied here for an in vivo comparative study of the calf muscles of 7 myotonic dystrophy patients at various stages of the disease and 11 healthy volunteers. Both the total sodium content, expressed as the ratio of the ^23^Na and ^1^H water signals, and the fast transverse relaxation time, T~21~, determined from the triple quantum‐filtered spectra, increased in correlation with the severity of the disease. The results demonstrate that ^23^Na NMR enables the quantitation of myotonic dystrophy progression.


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