Preliminary characterization of enzyme activities in Malpighian tubules involved in the breakdown of adipokinetic hormones

5-hydroxytryptamine regulates the (Na++K

5-hydroxytryptamine regulates the (Na++K+)ATPase activity in malpighian tubules of Rhodnius prolixus: Evidence for involvement of G-protein and cAMP-dependent protein kinase

✍ Maria Angela B. Grieco; Aníbal Gil Lopes 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 143 KB 👁 2 views

5-Hydroxytryptamine (5-HT, serotonin) acts as a diuretic hormone in Rhodnius prolixus, where it increases to 0.1 µM in the haemolymph during feeding and stimulates the fluid secretion in isolated Malpighian tubules. The ouabain-sensitive (Na + +K + )ATPase activity present in homogenates of Malpighi