Insulin and glucagon are hormones secreted by islet cells within the pancreas. They are both secreted in response to blood sugar levels, but in opposite fashion! Insulin is normally secreted by the beta cells (a type of islet cell) of the pancreas.
By Mayo Clinic Staff. Sjogren's (SHOW-grins) syndrome is a disorder of your immune system identified by its two most common symptoms â dry eyes and a dry mouth. Sjogren's syndrome often accompanies other immune system disorders, such as rheumatoid arthritis and lupus. In Sjogren's syndrome, the mucous membranes and moisture-secreting glands of your eyes and mouth are usually affected first â resulting in decreased production of tears and saliva.
SjÃ¶gren syndrome is a systemic chronic inflammatory disorder characterized by lymphocytic infiltrates in exocrine organs. Most individuals with SjÃ¶gren syndrome present with sicca symptoms, such as xerophthalmia (dry eyes), xerostomia (dry mouth), and parotid gland enlargement, which is seen in the image below. (See Presentation.) Marked bilateral parotid gland enlargement in a patient with primary SjÃ¶gren syndrome.