Table 3 Temperature-stimulated changes in cyclic-nucleotide levels.

From: Involvement of opsins in mammalian sperm thermotaxis

Time (s)

cGMP (pmol/107 cells)

cAMP (pmol/107 cells)

34 to 39°C

39 to 34°C

34 to 39°C

39 to 34°C

0

0.28 ± 0.06

0.28 ± 0.06

0.24 ± 0.06

0.9 ± 0.34

1

0.23 ± 0.06

0.36 ± 0.1

0.44 ± 0.12**

0.64 ± 0.25*

10

0.17 ± 0.02

0.31 ± 0.1

0.35 ± 0.13

0.62 ± 0.27

30

0.23 ± 0.03

0.2 ± 0.02

0.16 ± 0.06

0.87 ± 0.42

  1. The values shown, obtained at the denoted time points after the indicated temperature shifts, are the mean ± SEM of 5–8 determinations. *P = 0.045; **P = 0.003 according to two-way ANOVA for the difference from time 0.
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