Expression of soluble guanylyl cyclase (sGC) alpha and beta
subunits, cAMP-dependent protein kinase G-I (PKG-I), and cyclic
nucleotidegated channel 1 (CNG-1) in the stages of spermatogenesis in
rat testis*
Stage
1
2-3
4-5
6
7
8
9
10
11-15
16
17
18-19
sGC and ß
+
++
++
+++
+++
+++
+++
+++
PKG-I
±
+
++
++
+++
+++
++
+
+
±
CNG-1
+
+++
*Staining intensity: indicates no staining detected; ±, doubt;
+, weak; ++, moderate; and +++, strong.