diff --git a/elements/neuron/presynapse.md b/elements/neuron/presynapse.md
index edab67a..886b407 100644
--- a/elements/neuron/presynapse.md
+++ b/elements/neuron/presynapse.md
@@ -5,8 +5,8 @@ include_toc: true
 # presynapse.md
 
 Modulation:
-- develops:
-    - [VGCC_PRE](#vgcc-pre) 
+- is developed by: [AXON](axon.md) 
+- tunes:[VGCC_PRE](#vgcc-pre) 
 
 Qui comprendiamo: