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Updated: Jun 23, 2026

Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors
12:03

Receptor Autoradiography Protocol for the Localized Visualization of Angiotensin II Receptors

Published on: June 7, 2016

ANG II-AT1 receptor pathway is involved in the anti-fibrotic effect of beta-elemene

Rui Zhu1, Ling Yang, Lin Shen

  • 1Department of Traditional Chinese Medicine, Huazhong University of Science and Technology, Wuhan, 430022, China. zhurui19830108@163.com

Journal of Huazhong University of Science and Technology. Medical Sciences = Hua Zhong Ke Ji Da Xue Xue Bao. Yi Xue Ying De Wen Ban = Huazhong Keji Daxue Xuebao. Yixue Yingdewen Ban
|April 29, 2009
PubMed

Insights

Beta-elemene treatment effectively inhibited liver fibrosis progression in rats. This natural compound reduced collagen deposition and suppressed the angiotensin II-AT1 receptor pathway, offering a potential therapeutic strategy for liver fibrosis.

Area of Science:

  • Pharmacology
  • Hepatology
  • Biochemistry

Background:

  • Liver fibrosis is a significant health concern characterized by excessive collagen deposition.
  • The renin-angiotensin system, particularly angiotensin II (ANG II) and its AT1 receptor (AT1R), is implicated in the pathogenesis of liver fibrosis.

Purpose of the Study:

  • To investigate the therapeutic effects of beta-elemene on the ANG II-AT1 receptor pathway in a rat model of carbon tetrachloride (CCl4)-induced liver fibrosis.
  • To determine if beta-elemene can modulate key markers of liver fibrosis and the ANG II-AT1 receptor pathway.

Main Methods:

  • Hepatic fibrosis was induced in Wistar male rats using CCl4.
  • Beta-elemene was administered intraperitoneally for 8 weeks.
  • Liver fibrosis was assessed using Masson staining, hydroxyproline content, and liver function tests.
  • Plasma ANG II levels were measured by radioimmunoassay.
  • Hepatic AT1R expression was quantified using reverse transcriptional-polymerase chain reaction and immunohistochemistry.

Main Results:

  • Beta-elemene administration significantly reduced collagen deposition and inhibited the progression of liver fibrosis.
  • Treatment with beta-elemene led to a decrease in plasma ANG II levels.
  • The expression of hepatic AT1R was suppressed by beta-elemene in fibrotic rat livers.

Conclusions:

  • The ANG II-AT1 receptor pathway plays a crucial role in the development and progression of hepatic fibrosis.
  • Beta-elemene demonstrates antifibrotic effects by down-regulating plasma ANG II levels and hepatic AT1R expression.

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