Overview. Boston Gear's spur gears, which are designed to transmit motion and power between parallel shafts, are the most economical gears in the power transmission industry.We offer both 14 1/2Â° and 20Â° PA (pressure angle), involute, and full-depth system gears. Transmits motion and power efficiently between parallel shafts. 2  Our 20Â° PA spur gear has a high load-carrying capacity for enhanced performance. 3  The 14 1/2Â° PA spur gear offers smooth, quiet operation. 4  Spur gears are manufactured in Delrin, non-metallic, brass, steel, and cast iron materials for maximum versatility.
ACTH is a segment of a much larger glycoprotein prohormone molecule called proopiomelanocortin (POMC). POMC is synthesized by the corticotrophs of the anterior pituitary, which constitute about 10 percent of the gland.
The ACTH stimulation test is occasionally used to test adrenal production of aldosterone at the same time as cortisol to also help in determining if primary (hyperreninemic) or secondary (hyporeninemic) hypoaldosteronism is present.his test measures how much ACTH the pituitary gland is producing. A healthy ACTH value should be just into the upper third of the range (assuming a range of 10â60 ng/L). The ACTH plasma and ACTH stimulation test together can give a clearer picture, especially for secondary adrenal insufficiency.