What are the common disorders affecting nephron function?

Common disorders affecting nephron function include kidney stones, polycystic kidney disease, glomerulonephritis, and chronic kidney disease.

Kidney stones are hard deposits made of minerals and salts that form inside your kidneys. They can affect any part of your urinary tract, from your kidneys to your bladder. Stones form when the urine becomes concentrated, allowing minerals to crystallise and stick together. This can cause severe pain when the stone moves around the kidney or passes through the ureter.

Polycystic kidney disease (PKD) is a genetic disorder that causes numerous cysts to grow in the kidneys. These cysts are filled with fluid and can gradually replace much of the kidneys, reducing kidney function and leading to kidney failure. PKD cysts can change the shape of the kidneys, making them much larger than they should be and causing chronic kidney disease.

Glomerulonephritis is a type of kidney disease in which the body's immune system attacks the part of the kidney that filters blood (glomeruli). This can cause the kidneys to leak blood and protein into the urine, and can result in kidney damage or failure if left untreated. It can be caused by infections, drugs, or congenital abnormalities.

Chronic kidney disease (CKD) is a long-term condition where the kidneys do not work as well as normal. It's a common condition often associated with ageing. It doesn't usually cause symptoms until it's significantly advanced and the kidneys are failing. CKD can lead to kidney failure, requiring dialysis or a kidney transplant for survival. It can also increase the risk of heart disease and stroke.

Each of these disorders can significantly impact the function of the nephrons, the microscopic functional units of the kidney. They filter the blood and produce urine, helping to remove waste products and excess substances from the body. When nephrons are damaged or destroyed by these disorders, the kidneys' ability to filter blood and maintain the body's balance of fluids and electrolytes is compromised.