Doctors don't know what causes Paget's disease of the breast. The most widely accepted theory is that the disease results from an underlying ductal breast cancer. The cancer cells from the original tumor then travel through milk ducts to the nipple and its surrounding skin.
Glucose in the bloodstream provides the primary fuel for all body tissues. Blood glucose levels are highest during the digestive period after a meal. Your blood sugar is lowest when the stomach and intestines are empty. Under normal circumstances, the body tightly controls the amount of insulin in your blood. An organ called the pancreas, which is tucked behind the stomach releases the hormones insulin and glucagon to regulate blood sugar levels.
Because of this requirement, it is important that the. concentration of glucose in the blood remains nearly constant. The maintenance of a nearly constant. blood glucose level is achieved by a complex set of interactions which include regulation by a number. of hormones of the endocrine system. The hormone insulin is secreted into the blood when a vertebrate eats and the glucose level in the. blood increases. Among the numerous functions of insulin is the stimulation of the uptake, storage, and use of glucose by tissues of the body. These activities result in a decrease in the level of glucose. remaining in the blood.