Antihypertensive Effects of Angiotensin Fragments in SHR

Hiroshi Matsufuji, Toshiro Matsui, Satoko Ohshige, Terukazu Kawasaki, Katsuhiro Osajima, Yutaka Osajima

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Abstract

When angiotensin fragments, Val-Tyr and Angiotensin III (ANG III), with potent ACE inhibitory activity were intravenously administered to spontaneously hypertensive rat (SHR), a significant reduction of diastolic blood pressure was observed. After incubation of ANG III with SHR plasma, four fragments with ACE inhibitory activity, Val-Tyr (ANG (3-4)) (IC50=26.0μM), Ile-His-Pro-Phe (ANG (5-8)) (11.6μM), Tyr-Ile-His-Pro-Phe (ANG (4-8)) (457.5μM), and Val-Tyr-Ile-His-Pro-Phe (ANG (3-8)) (6.55μM), were confirmed to generate in SHR plasma. Compared the metabolic behavior of ANG II in SHR plasma with that in normotensive Wistar plasma, the initial degradation rate (3.07nmol/ml/min) in Wistar plasma was about 2-fold higher than that in the SHR one (1.75nmol/ml/min).

Original languageEnglish
Pages (from-to)1398-1401
Number of pages4
JournalBioscience, Biotechnology and Biochemistry
Volume59
Issue number8
DOIs
Publication statusPublished - Jan 1 1995

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All Science Journal Classification (ASJC) codes

  • Biotechnology
  • Analytical Chemistry
  • Biochemistry
  • Applied Microbiology and Biotechnology
  • Molecular Biology
  • Organic Chemistry

Cite this

Matsufuji, H., Matsui, T., Ohshige, S., Kawasaki, T., Osajima, K., & Osajima, Y. (1995). Antihypertensive Effects of Angiotensin Fragments in SHR. Bioscience, Biotechnology and Biochemistry, 59(8), 1398-1401. https://doi.org/10.1271/bbb.59.1398