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BNP is synthesized as a 134-amino acid preprohormone (preproBNP), encoded by the human gene NPPB. Removal of the 26-residue N-terminal signal peptide generates the prohormone, proBNP, which is stored intracellularly as an O-linked glycoprotein; proBNP is subsequently cleaved between arginine-102 and serine-103 by a specific convertase (probably furin or corin) into NT-proBNP and the ...
Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...
There is no level of BNP that perfectly separates patients with and without heart failure. [10]In screening for congenital heart disease in pediatric patients, an NT-proBNP cut-off value of 91 pg/mL could differentiate an acyanotic heart disease (ACNHD) patient from a healthy patient with a sensitivity of 84% and specificity of 42%. [11]
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In 1979, Creagan was the head of a Mayo Clinic study on the effectiveness of large doses of vitamin C for cancer patients. Creagan and his team provided high doses of vitamin C to 150 patients at the Mayo Clinic with advanced stages of cancer. Patients in the controlled study either received 10 grams of vitamin C or a placebo of lactose per day.
Nesiritide, sold under the brand name Natrecor, is the recombinant form of the 32 amino acid human B-type natriuretic peptide, which is normally produced by the ventricular myocardium. Nesiritide works to facilitate cardiovascular fluid homeostasis through counterregulation of the renin–angiotensin–aldosterone system , stimulating cyclic ...
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Urea: oral daily ingestion has shown favorable long-term results with protective effects in myelinosis and brain damage. [19] Limitations noted to be undesirable taste and is contraindicated in people with cirrhosis to avoid initiation or potentiation of hepatic encephalopathy. Conivaptan – an antagonist of both V 1A and V 2 vasopressin ...