Effect of Captopril and BQ123 Endothelin-1 Antagonist on Experimentally Induced Hyperlipidemic Nephropathy in Rats

Astha Jaiswal1, Bhupesh Chandra Semwal1, Sonia Singh1

  • 1Department of Pharmacology, Institute of Pharmaceutical Research GLA University, Mathura U.P. 281406, India.

Abstract

Insights

Captopril and BQ123 combination therapy effectively treats hyperlipidemia-induced kidney damage in rats by reducing inflammation and oxidative stress, improving kidney function.

Area of Science:

  • Nephrology
  • Pharmacology
  • Biochemistry

Background:

  • Chronic kidney disease (CKD) is a growing global health concern.
  • Current treatments for nephropathy show limited efficacy in halting disease progression.
  • Hyperlipidemia is a significant risk factor contributing to kidney damage.

Purpose of the Study:

  • To investigate the therapeutic potential of captopril and BQ123 in a rat model of hyperlipidemia-induced nephropathy.
  • To explore the role of Endothelin-1 in the development of experimentally induced hyperlipidemic nephropathy.

Main Methods:

  • Hyperlipidemia was induced in rats via a six-week high-fat diet.
  • Animals received treatment with captopril and BQ123 for 14 days post-hyperlipidemia confirmation.
  • Biochemical assays and histopathological examinations were conducted to assess kidney damage and function.

Main Results:

  • Combined treatment with captopril and BQ123 significantly reduced blood urea nitrogen (BUN) and serum creatinine levels.
  • The treatment regimen decreased serum nitrite and pro-inflammatory markers, indicating reduced inflammation.
  • Pathological kidney injuries were ameliorated following the combined therapy.

Conclusions:

  • Captopril and BQ123 combination therapy demonstrates significant therapeutic efficacy against hyperlipidemia-induced nephropathy.
  • The treatment effectively inhibited oxidative stress and restored antioxidant enzyme levels.
  • This study highlights the potential of combined captopril and BQ123 as a therapeutic strategy for kidney disease.

Related Concept Videos

Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors01:30

Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors

Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
866
Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
505
Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists01:18

Treatment for Pulmonary Arterial Hypertension: Endothelin Receptor Antagonists

Endothelins (ETs) are potent vasoactive peptides critical in the human body's various physiological and pathological processes. One of the most promising therapeutic strategies for treating pulmonary arterial hypertension (PAH) involves counteracting the effects of these endothelins using a class of drugs known as endothelin receptor antagonists.
ETs are synthesized through a complex sequence of enzymatic steps, primarily involving an enzyme referred to as endothelin-converting enzyme...
223
Antihypertensive Drugs: Angiotensin II Receptor Blockers01:30

Antihypertensive Drugs: Angiotensin II Receptor Blockers

In the renin-angiotensin-aldosterone system, a hormone called angiotensin II plays a crucial role. It binds to the AT1 receptors in vascular smooth muscles coupled with Gq proteins. The activation of these receptors activates an enzyme called phospholipase C, which releases two molecules: inositol trisphosphate and diacylglycerol. These molecules cause a chain reaction that leads to the phosphorylation of myosin light chains and promotes interaction between actin and myosin, leading to smooth...
905
Antihypertensive Drugs: Direct Renin Inhibitors01:25

Antihypertensive Drugs: Direct Renin Inhibitors

The renin-angiotensin-aldosterone system (RAAS) is an intricate physiological pathway involving numerous enzymes and hormones, including renin, angiotensin-converting enzyme (ACE), angiotensin I and II, and aldosterone. Imbalances within this system increase the production of angiotensin II and aldosterone. Increased angiotensin II levels promote vasoconstriction and blood pressure elevation. Concurrently, higher aldosterone levels stimulate sodium and water reabsorption in the kidneys,...
814