2017-03-31 14:21Shan Nie

Nephritis is inflammation of the kidneys and may involve the glomeruli, tubules, or interstitial tissue surrounding the glomeruli and tubules.

The type of nephritis: Glomerulonephritis is inflammation of the glomeruli. Glomerulonephritis is often implied when using the term "nephritis" without qualification. Interstitial nephritis or tubulo-interstitial nephritis is inflammation of the spaces between renal tubules.

The causes of nephritis: Nephritis is often caused by infections, and toxins, but is most commonly caused by autoimmune disorders that affect the major organs like kidneys. Pyelonephritis is inflammation that results from a urinary tract infection that reaches the renal pelvis of the kidney. Lupus nephritis is inflammation of the kidney caused by systemic lupus erythematosus, a disease of the immune system.

Athletic nephritis is nephritis resulting from strenuous exercise. Bloody urine after strenuous exercise may also result from march hemoglobinuria, which is caused by trauma to red blood cells, causing their rupture, which leads to the release of hemoglobin into the urine.

The mechanism of nephritis: Nephritis can produce glomerular injury, by disturbing the glomerular structure with inflammatory cell proliferation. This can lead to reduced glomerular blood flow, leading to reduced urine output and retention of waste products. As a result, red blood cells may leak out of damaged glomeruli, causing blood to appear in the urine.

Low renal blood flow activates the renin-angiotensin-aldosterone system, causing fluid retention and mild hypertension. As the kidneys inflame, they begin to excrete needed protein from the affected individuals body into the urine stream. This condition is called proteinuria.

Loss of necessary protein due to nephritis can result in several life-threatening symptoms. The most serious complication of nephritis can occur if there is significant loss of the proteins that keep blood from clotting excessively. Loss of these proteins can result in blood clots causing sudden stroke.

The diagnosis of nephritis: The diagnosis depends on the cause of the nephritis, in the case of lupus nephritis, blood tests, X-rays and an ultrasound can help ascertain if the individual has the condition.

The treatment of nephritis: Treatment of nephritis depends on what has provoked the inflammation of the kidney. In the case of lupus nephritis, hydroxychloroquine could be used.

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