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The most common type of cast, hyaline casts are solidified Tamm–Horsfall mucoprotein secreted from the tubular epithelial cells of individual nephrons. Low urine flow, concentrated urine, or an acidic environment can contribute to the formation of hyaline casts, and as such, they may be seen in normal individuals in dehydration or vigorous exercise.
Examples of urinary casts: a) RTE cell cast, b) "muddy" granular cast, c) white blood cell cast, d) red blood cell cast [112] Urinary casts are cylindrical structures composed of Tamm-Horsfall glycoprotein. Their shape derives from the renal tubules where they are formed, and the protein base can incorporate cells or other material. Hyaline ...
Myeloma cast nephropathy, also referred to as light-chain cast nephropathy, is the formation of plugs (urinary casts) in the kidney tubules from free immunoglobulin light chains leading to kidney failure in the context of multiple myeloma. It is the most common cause of kidney injury in myeloma.
A urinary tract infection (UTI) is an infection that affects a part of the urinary tract. [1] Lower urinary tract infections may involve the bladder (cystitis) or urethra while upper urinary tract infections affect the kidney (pyelonephritis). [10]
Uromodulin consists of an EGF domain (EGF I); two calcium-binding EGF domains (EGF II, III); a cysteine-rich decoy module consisting of a β-hairpin and a D10C domain (previously referred to as D8C); a fourth EGF domain; and a C-terminal bipartite Zona pellucida-like (ZP) module consisting of ZP-N and ZP-C domains separated by an interdomain linker.
The changes in small arterioles include hyaline arteriolosclerosis (deposition of hyaline, collagenous material), [citation needed] which causes glomerular collapse (wrinkling and thickening of capillary basement membranes and collapse of capillary lumen) and solidification (glomeruli exhibit sclerosis and increase in mesangial matrix).
Minimal change disease (MCD), also known as lipoid nephrosis or nil disease, among others, is a disease affecting the kidneys which causes nephrotic syndrome. [1] Nephrotic syndrome leads to the loss of significant amounts of protein to the urine (proteinuria), which causes the widespread edema (soft tissue swelling) and impaired kidney function commonly experienced by those affected by the ...
Individuals with ATN also may have evidence of hyaline casts or muddy-brown casts in the urine on microscopy, whereas the urine of individuals with HRS is typically devoid of cellular material, as the kidneys have not been directly injured. [3]