XB-ART-40762
Opt Express
2009 Oct 26;1722:19763-77. doi: 10.1364/OE.17.019763.
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Three distinct sarcomeric patterns of skeletal muscle revealed by SHG and TPEF microscopy.
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We have extensively characterized the sarcomeric SHG signal as a function of animal species (rat versus xenopus), age (adult versus larval) and tissue preparation (fixed or fresh) and we found that the main feature of this signal is a single peak per mature sarcomere (about 85% of all sarcomeres). The remaining (15%) was found to be either double peak per mature sarcomere or mini sarcomeres (half of a sarcomere) using alpha-actinin immuno detection of the Z-band. The mini sarcomeres are often found in region of pitchfork-like SHG pattern. We suggest that double peak SHG pattern could indicate regions of sarcomeric proteolysis whereas pitchfork-like SHG pattern could reveal sarcomeric assembly.
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Species referenced: Xenopus laevis
Genes referenced: actn1