Characteristic features of ghrelin cells in the gastrointestinal tract and the regulation of stomach ghrelin expression and production

Figure 4 mRNA expression levels of gastric ghrelin and leptin under different feeding conditions[27]. (A) Effects of 48 h of fasting and 5 h of refeeding on gastric ghrelin expression; (B) Effects of 48 h of fasting and 5 h of refeeding on gastric leptin expression. Ghrelin and leptin mRNA levels are expressed relative to β-actin mRNA levels. Data are presented as mean ± SE. n = 3-4/group. ^aP < 0.05; ^bP < 0.01.