Nephritis

Nephritis is inflammation of the kidney. The word comes from the Greek nephro- meaning "of the kidney" and -itis meaning "inflammation". The two most common causes of nephritis are infection or an auto-immune process.

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Nephritis has the effect of damaging and closing up the microscopic filters in the kidney. This means that in addition to various toxic waste products, the inflamed kidney filters out important proteins (larger molecules) from the blood. Therefore the characteristic symptom of nephritis is proteinuria — meaning the excessive removal of protein from the blood and its excretion in urine. Loss of blood protein(s) can result in a number of problems including swelling, excessive water retention, and the danger of blood clots (as a result of the removal of anti-coagulation proteins). It is a serious, incurable condition, but it goes into spontaneous remission in about half of all cases. It is treated with immunosuppressant drugs and corticosteroids. These drugs appear to increase the chances of speedy remission, but there is much medical debate about their effectiveness in this situation.

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Nephritis is the 9th leading cause of death in the United States.

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Inflammation: Inflammation is the first response of the immune system to infection or irritation and may be referred to as the innate cascade. Inflammation is characterized by the following quintet: redness (rubor), heat (calor), swelling (tumor), pain (dolor) and dysfunction of the organs involved (functio laes...

Kidney: The kidneys are bean-shaped excretory organs in vertebrates. Part of the urinary system, the kidneys filter wastes (especially urea) from the blood and excrete them, along with water, as urine. The medical field that studies the kidneys and diseases affecting the kidney is called nephrology, from th...

Immune: REDIRECT Immunity (medical)...