CRP and obesity due to melanocortin 4 receptor deficiency: It is important to highlight that Desulfovibrio piger (Clusters 6 for OB-G and Clusters 14, 18 for OBc-G) showed that the increase of the abundance of this species is always associated with the increase in the value of some clinical parameters critical for obesity (such as TRG for OB-G and CRP for OBc-G, respectively).