You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Normal protein excretion in urine(daily): and explain in detail?
The amount of protein in the urine is normally <150 mg/day.([?]90-120 mg) Protein handling at the glomerular filtration barrier : The endothelium is fenestrated (contains holes) and is freely permeable to water, small solutes, and most proteins; but not permeable to the blood cells. The basement membrane is a porous matrix of negatively charged proteins.The basement membrane is primarily considered as a charge-selectivity barrier; The processes of the podocytes interdigitate to cover the basement membrane and are separated by gaps called filtration slits. .They function primarily as the size-selective filter. It should also be noted that ~ Normally, the filtered proteins are almost entirely reabsorbed in the PCT; only a small quantity thus may appear in the urine.