Transdermal Administration of Volatile Oil from Citrus aurantium-Rhizoma Atractylodis Macrocephalae Alleviates Constipation in Rats by Altering Host Metabolome and Intestinal Microbiota Composition

Figure 6

(a–d) Effects of ZBVO treatment on 5-HT and VIP levels in colon and hippocampal tissues (). Values are expressed as , . , , and vs. the BC group. ^#, ^##, and ^### vs. the MC group.

(a)

(b)

(c)

(d)