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Brain natriuretic peptide (BNP), also known as B-type natriuretic peptide, is a hormone secreted by cardiomyocytes in the heart ventricles in response to stretching caused by increased ventricular blood volume. [5] BNP is one of the three natriuretic peptides, in addition to atrial natriuretic peptide and C-type natriuretic peptide . [6]
N-terminal prohormone of brain natriuretic peptide (NT-proBNP or BNPT) is a 76 amino acid long protein that is cleaved from the N-terminal end of the 108 amino acid long prohormone proBNP to release brain natriuretic peptide 32 (BNP, also known as B-type natriuretic peptide). [1] [2] [3] [4]
The natriuretic peptide CNP was initially discovered in pig brain extracts. Most CNP is found in the brain, although it can also be found in chondrocytes and the blood vessel lining cells. The human gene for CNP (NPPC), in contrast to the genes for ANP and BNP, is located on chromosome 2 and consists of just two exons and one intron. [ 3 ]
Atrial natriuretic peptide (ANP) or atrial natriuretic factor (ANF) is a natriuretic peptide hormone secreted from the cardiac atria that in humans is encoded by the NPPA gene. [5] Natriuretic peptides (ANP, BNP , and CNP ) are a family of hormone/paracrine factors that are structurally related. [ 6 ]
Atrial natriuretic peptide: When the atrium stretches, blood pressure is considered to be increased and sodium is excreted to lower blood pressure. Renin-angiotensin system : When the blood flow through the juxtaglomerular apparatus decreases, blood pressure is considered low, and the adrenal cortex secretes aldosterone to increase sodium ...
It is promoted by ventricular and atrial natriuretic peptides as well as calcitonin, [2] and inhibited by chemicals such as aldosterone. Natriuresis lowers the concentration of sodium in the blood and also tends to lower blood volume because osmotic forces drag water out of the body's blood circulation and into the urine along with the sodium.
Angiotensin II also causes the adrenal glands to release aldosterone, which stimulates the epithelial cells of the kidneys to increase re-absorption of salt and water, leading to raised blood volume and raised blood pressure. So elevated renin levels in the blood (normally 1.98-2.46 ng/ml in the upright position) [40] leads to hypertension. [2 ...
18160 Ensembl ENSG00000169418 ENSMUSG00000027931 UniProt P16066 P18293 RefSeq (mRNA) NM_000906 NM_008727 RefSeq (protein) NP_000897 NP_032753 Location (UCSC) Chr 1: 153.68 – 153.69 Mb Chr 3: 90.36 – 90.37 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Natriuretic peptide receptor A/guanylate cyclase A (atrionatriuretic peptide receptor A), also known as NPR1, is an atrial ...