In thin basement membrane disease, the defect is in
TBM disease (also known as benign familial hematuria and thin basement membrane nephropathy) is, along with IgA nephropathy, the most common cause of blood in the urine without any other symptoms. The only abnormal finding in this diseaseis a thinning of the basement membrane of the glomeruli (filters) in the kidneys. Refer robbins 9/e
a1 and a2 chains of type IV collagen
a3 and a4 chains of type IV collagen
a1 and a2 chains of type VI collagen
a3 and a4 chains of type VI collagen
Urinary tract