Related Experiment Video

Updated: Sep 26, 2026

Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles
09:15

Differential Effects of Lipid-lowering Drugs in Modulating Morphology of Cholesterol Particles

Published on: November 10, 2017

Lipid-lowering-independent effects of simvastatin on the kidney in experimental hypercholesterolaemia

Stephanie H Wilson1, Alejandro R Chade, Ariel Feldstein

  • 1Division of Hypertension, Mayo Clinic, Rochester, MN 55905, USA.

Nephrology, Dialysis, Transplantation : Official Publication of the European Dialysis and Transplant Association - European Renal Association
|March 15, 2003
PubMed

Insights

Simvastatin treatment improved kidney blood flow and reduced inflammation and oxidative stress in pigs with high cholesterol. These findings suggest statins offer novel kidney protection beyond cholesterol lowering in hypercholesterolemia.

Area of Science:

  • Nephrology
  • Cardiovascular Research
  • Pharmacology

Background:

  • Hypercholesterolemia (HC) is a significant risk factor for kidney injury, linked to oxidized LDL, oxidative stress, and renal inflammation.
  • The impact of HMG-CoA-reductase inhibitors (statins) on renal hemodynamics and function in HC remains unclear.

Purpose of the Study:

  • To investigate the effects of simvastatin on renal hemodynamics and function in a pig model of diet-induced hypercholesterolemia.

Main Methods:

  • Pigs were fed a normal diet, a high-cholesterol (HC) diet, or an HC diet with simvastatin for 12 weeks.
  • Renal hemodynamics and function were assessed using electron-beam computed tomography (EBCT).
  • Renal tissue was analyzed via immunohistochemistry.

Main Results:

  • Simvastatin treatment increased endothelial nitric-oxide-synthase (eNOS) expression and decreased LOX-1 receptor expression.
  • Reduced markers of oxidative stress and inflammation (inducible-NOS, nitrotyrosine, NF-κB) were observed in simvastatin-treated pigs.
  • Cortical and medullary renal perfusion significantly increased in the simvastatin group compared to HC and normal groups.

Conclusions:

  • Simvastatin mitigated renal inflammation, oxidative stress, and fibrosis in hypercholesterolemic pigs.
  • These renoprotective effects occurred alongside enhanced renal perfusion, independent of cholesterol-lowering effects.
  • Statins may offer novel renoprotective benefits in hypercholesterolemia and atherosclerosis settings.
Abstract

More Related Videos

LDL Cholesterol Uptake Assay Using Live Cell Imaging Analysis with Cell Health Monitoring08:45

LDL Cholesterol Uptake Assay Using Live Cell Imaging Analysis with Cell Health Monitoring

Published on: November 17, 2018

Related Concept Videos

Lipid-Lowering Drugs: Statins and Miscellaneous Agents01:20

Lipid-Lowering Drugs: Statins and Miscellaneous Agents

Hyperlipidemia, a medical condition often referred to as high cholesterol, is characterized by abnormally elevated levels of lipids in the bloodstream. When present in excess, these lipids, specifically cholesterol and triglycerides, can lead to serious health complications, often involving cardiovascular diseases. Illnesses like atherosclerosis, heart attacks, and pancreatitis have all been linked to untreated hyperlipidemia. This means controlling and regulating cholesterol and triglyceride...
Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow01:26

Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow

Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug binding...
Factors Affecting Renal Clearance: Renal Impairment01:17

Factors Affecting Renal Clearance: Renal Impairment

Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
One condition associated with renal failure is uremia. Uremia is characterized by impaired glomerular filtration and fluid accumulation in the body. This condition hinders the renal clearance of drugs, resulting in drug accumulation and potential...
Factors Affecting Renal Clearance: Drug Distribution and Drug Interactions01:09

Factors Affecting Renal Clearance: Drug Distribution and Drug Interactions

Renal clearance plays a pivotal role in drug elimination from the body and can be influenced by drug distribution and interactions. Understanding these factors is crucial in pharmacology as they impact the effectiveness and duration of drug therapy.
One important factor is the relationship between renal clearance and the apparent volume of distribution. Renal clearance tends to be inversely proportional to the apparent volume of distribution. Drugs with an extensive distribution volume or those...
Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration01:28

Drug Dosing in Renal Diseases: Estimation of Glomerular Filtration Rate Based on Serum Creatinine Concentration

Glomerular filtration rate (GFR) can be estimated from serum creatinine using the modification of diet in renal disease (MDRD) formula or the chronic kidney disease–epidemiology collaboration (CKD–EPI) equation. Both methods are widely used in clinical practice to assess kidney function and guide treatment decisions.The MDRD equation does not require weight or height measurements and is normalized to the body surface area of 1.73 m², considered the average adult surface area. This equation is...
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,...