"They have been found in 44 plant families, but no essential metabolic function has been established for them. They are precursors of benzo[c]phenanthridine alkaloids , which are the active principal ingredients of many medicinal plant extracts. CAs have been implicated to have a possible protective role against insect predators, injuries, and nitrogen detoxification. They have been shown to promote plant tissue growth, somatic embryogenesis from in vitro cultures, and flowering. CAs inhibit indole-3-acetic acid oxidation and enhance ethylene biosynthesis. They have also been shown to enhance synergistically various effects of gibberellins ." 
Patients rarely require drains after adrenal surgery; however, if the surgeon thinks it is necessary, an abdominal drain will be placed. Drains are more often required after open adrenalectomy than after laparoscopic adrenalectomy. Drains are relatively easy to take care of, and the output is recorded on a daily basis. Once the output decreases to a certain level, the drain will be removed. Removal of the drain is not particularly painful. It is more of a strange sensation. In general, the drain will be removed several days after surgery.