Vasopressin has three main effects: 1  Increasing the water permeability of distal convoluted tubule and collecting duct cells in the kidney, thus allowing water reabsorption and excretion of more concentrated urine, i.e., antidiuresis.
It can be caused by damage to the vagus nerve, which regulates the digestive system. A damaged vagus nerve prevents the muscles in the stomach and intestine from functioning, preventing food from moving through the digestive system properly. Often, the cause of gastroparesis is unknown.
1 Answer. Could be several reasons why we get gas pains in the stomach, e.g. food intolerances, especially gluten and dairy, not chewing food properly, eating too late in the evening, eating when stressed. Antibiotic therapy can cause excessive gas build up due to antibiotics eradicating a lot of the friendly bacteria in the intestines.