J.M is 76 years old male who was diagnosed with diagnosed with diabetes, and CHF. He complaint of pain in the flank areas.

J.M is 76 years old male who was diagnosed with diagnosed with diabetes, and CHF. He complaint of pain in the flank areas. The provider diagnosed J.M with glomerulonephritis. He drink 4 cups fo coffee daily. He smokes 1 pack of cigarette per day. He sits for 6 hours at a time to work form his desk. At his last check up his weigh is 275, BP was 155/100. Temp is 97.2, pulse is 98, Respirations is 22,. He sleeps 4 to 5 hours each night. He east fast food 5 days a week. What is the pathophysiology of glomerulonephritis?