Question

abnormal normal constituents of protein

Answer 1

PROTEINS:

Ecretion of proteins in urine is due to:

1- Increase in the permeability of the glomerular capillaries as in nephrotic syndrome etc

2- Damage to the capillaries membranes as in glomerulonephritis

Following proteins can be excreted in abnormal urine:

Albumin

Globulin

Hemoglobin (protein of RBC)

Myoglobin

Bence Jones Proteins

Albumin and globulin are found in the urine in the condition called proteinuria, also in nephrotic syndrome and glomerular nephritis.

hemoglobin is excreted in urinay tract infections.

Myoglobin is excreted due to muscular atrophy etc.

Bence Jones proteins are not usually synthesised in the body. They are produced in the condition called multiple myeloma, by plasma cells.

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