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Fig. 5. Typical results of the mechanical test on the dermis in
Ca2+-free artificial seawater (Ca2+-free ASW). (A)
Mechanical test on a control dermis. The stiffness rapidly decreased at the
very start of the dynamic test. Addition of 100 µl Ca2+-free ASW
(downward arrow) did not cause a change in stiffness. (B) Effect of 100 µl
Ca2+-free ASW containing H-tensilin (final concentration;
1 µg ml1) on the stiffness of the dermis. A rapid
decrease in stiffness was observed at the start of the mechanical test, as in
A. Application of H-tensilin (downward arrow) caused an increase in
stiffness, and washing with Ca2+-free ASW (upward arrow) caused a
decrease in stiffening.