The most common cause of renal artery stenosis is atherosclerosis, the same condition that causes narrowing of the arteries in coronary heart disease and stroke, and the risk factors are the same as well. Cholesterol plaques build up along the walls of the renal artery and gradually cause narrowing.
Oxytocin is a commonly used uterotonic that can cause significant and even fatal hypotension, particularly when given as a bolus. The resulting hypotension can be produced by a decrease in systemic vascular resistance or cardiac output through a decrease in venous return.
  Oxytocin is sometimes known as the cuddle hormone because of its influence on maternal behavior and pair bonding. It is found all over the brains and reproductive syste â¦ ms of both sexes. Oxytocin is produced naturally in the hypothalamus in the brain.It hormone that affects the brain as a result of its interactions with gonadal steroids like estrogen, progesterone, testosterone and corticosterone. This hormone is key to pair bonding.xytocin is secreted by the pituitary gland. Specifically, it is from the posterior pituitary, with posterior meaning the back or behind the pituitary gland.