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.
Like prolactin infertility in women, prolactin can also affect male fertility. In fact, if you have too much prolactin in your blood stream it can cause you to become infertile. High prolactin levels have an adverse affect on the function of your testicles, and can cause decreased testosterone levels or abnormal sperm. This can cause serious problems when it comes time to conceive. Normal prolactin levels in men are typically less than 15 ng/mL.