It's definitely a trend, and the handwriting is on the wall for anyone using chimpanzees in research. Public sentiment has also turned against using chimpanzees, especially in invasive studies, after decades of studies on the apes revealed their intelligent, emotional natures to be similar to our own.
Best Answer: CONCLUSION: Weight gain and elevated body weight are frequently associated with prolactinomas regardless of a mass effect on the hypothalamus or pituitary function. In this series, weight loss was recorded in 70% of prolactinomas patients and in 90% of male patients who normalized their prolactin levels. We propose the inclusion of hyperprolactinaemia in the differential diagnosis of endocrine obesity and weight gain.
1 High levels of prolactin may mean that the pituitary gland is making excess prolactin for unknown reasons (idiopathic hyperprolactinemia). 2  Other conditions that can cause high prolactin levels include pregnancy, liver disease (cirrhosis), kidney disease, and hypothyroidism. A normal or low prolactin level does not always mean there is no pituitary tumor. 2  An MRI test may be done if a pituitary tumor is suspected. 3  High levels of prolactin may mean that the pituitary gland is making excess prolactin for unknown reasons (idiopathic hyperprolactinemia).