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Table 1.

The proportional volume of myocardial subcellular structures in non-hibernating and hibernating ground squirrels S. dauricus

Sarcoplasmic reticulum
GroupsTotalJunctionalLongitudinalMitochondriaLipid dropletsMyofilaments
Non-hibernating 14.7±1.3 1.1±0.1 13.6±1.3 324±11 2.4±0.7 510±11 
Hibernating 35.8±1.9* 1.2±0.1 34.5±1.8* 280±11 10.6±0.7* 514±11 
Sarcoplasmic reticulum
GroupsTotalJunctionalLongitudinalMitochondriaLipid dropletsMyofilaments
Non-hibernating 14.7±1.3 1.1±0.1 13.6±1.3 324±11 2.4±0.7 510±11 
Hibernating 35.8±1.9* 1.2±0.1 34.5±1.8* 280±11 10.6±0.7* 514±11 

Values are parts per thousand (means ± S.E.M., N=60).

*

P<0.01.

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