Dermatology with 630+ answers. Sunburn is caused by ultraviolet (UV) radiation damage to your skin. Too much UV damages your skin cellâs DNA, and your immune system responds by killing off the bad cells. Because UV radiation doesnât penetrate (unlike X-rays for example), it damages only the surface layer of your skin.
With chronic pancreatitis, the pancreas may eventually stop producing the enzymes that are necessary for your body to digest and absorb nutrients. This is called exocrine failure and fat and protein are not digested or absorbed.
Within the pancreas, acinar cells produce the digestion enzymes, which travel in pancreatic juice into the duodenum through a system of ducts (which produce the pancreatic juice). Many of the pancreatic enzymes are actually proto-enzymes; they require another chemical in the duodenum to transform into an actual enzyme. For example, trypsinogen, produced in the pancreas, activates in the presence of enterokinase, produced in the duodenum. When activated, trypsinogen becomes the enzyme trypsin.