Abstract:
:Although brain natriuretic peptide (BNP) is a novel natriuretic peptide originally identified in porcine brain, recent investigation has verified the presence of BNP in porcine heart. In order to identify BNP as a circulating hormone, we analyzed the regional distribution and molecular form of immunoreactive (ir-) BNP in heart and blood. Tissue concentration of ir-BNP was high in atrium, but low in ventricle, in a manner similar to that of atrial natriuretic peptide (ANP). However, the concentration of ir-BNP in atrium was only about 1/50 that of ir-ANP. In plasma, ir-BNP was found at a concentration of 1-3 fmol/ml, which was about 1/20 that of ir-ANP. Both ir-BNP and ir-ANP were present as low molecular weight forms. Three forms of ir-BNP of about 3K daltons, including BNP-26, BNP-29 and BNP-32, are thought to circulate in blood.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Aburaya M,Minamino N,Kangawa K,Tanaka K,Matsuo Hdoi
10.1016/s0006-291x(89)80047-6subject
Has Abstractpub_date
1989-12-15 00:00:00pages
872-9issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(89)80047-6journal_volume
165pub_type
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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journal_title:Biochemical and biophysical research communications
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