Our Companies. The Main Street America Group was established in 1923 with the founding of National Grange Mutual Insurance Company (NGM), which was created to provide affordable insurance coverage to Grange Fraternity members in New Hampshire.
Autoimmune progesterone dermatitis: Introduction. Autoimmune progesterone dermatitis: A skin rash that appears to be a result of the body's immune reaction to progesterone. As progesterone production is linked to menstrual cycles, the rash occurs usually in the week before menstruation until a few days after menstruation starts.
PMS Mood Symptoms. In PMS, investigators attribute the physical and mood symptoms to either progesterone or an excess of progesterone over estrogen. With postmenopausal hormone replacement (HRT), many women have mood and physical symptoms from the specific progestin that is used. Provera(R) (medroxyprogesterone acetate used in PremPro(R) or PremPhase(R)) tends to produce more physical symptoms such as low back pain, bloating, and cramps.