Statistical analysis of CB₁R in terminals forming asymmetric and symmetric synapses in the VMH of <i>CB₁R</i>-WT mice processed by a preembedding immunogold method.

<p>A: 24.0±2.9% of synaptic terminals making asymmetric and 28.9±7.5% of terminals with symmetric synapses are CB₁R immunopositive. No statistically significant difference is detected (x² = 0.5946, p = 0.4406, analyzed area: 2,376 µm²). B: CB₁R density after subtraction of background labeling (0.015±0.003 particles/ µm in the VMH of <i>CB₁R</i>-KO) is pretty similar in synaptic terminals making asymmetric or symmetric synapses (0.42±0.03 and 0.47±0.09 immunoparticles/ µm respectively, p = 0.6553).