Related Experiment Video

Updated: Jun 28, 2026

5/6th Nephrectomy in Combination with High Salt Diet and Nitric Oxide Synthase Inhibition to Induce Chronic Kidney Disease in the Lewis Rat
08:50

5/6th Nephrectomy in Combination with High Salt Diet and Nitric Oxide Synthase Inhibition to Induce Chronic Kidney Disease in the Lewis Rat

Published on: July 3, 2013

Chronic administration of SMP-534 ameliorates renal dysfunction in 5/6 nephrectomized rats

Tsuyoshi Tsujimura1, Jun Nagamine, Eiji Sugaru

  • 1Pharmacology Research Laboratories, Dainippon Sumitomo Pharma Co. Ltd., Drug Research Division, Osaka, Japan.

Nephron. Experimental Nephrology
|October 31, 2008
PubMed
Abstract

Insights

SMP-534, a novel compound, significantly improved renal dysfunction in a rat model of chronic kidney disease (CKD). This therapeutic agent reduced key markers of kidney damage and improved survival rates, offering potential for new CKD treatments.

Area of Science:

  • Nephrology
  • Pharmacology
  • Biomedical Research

Background:

  • Chronic kidney disease (CKD) is a major cause of end-stage renal disease, with current antihypertensive agents offering incomplete protection.
  • Previous research indicated that SMP-534 improves renal disease and extracellular matrix production in vitro, and inhibits glomerular fibrosis in vivo.

Purpose of the Study:

  • To investigate the therapeutic effects of SMP-534 on renal dysfunction in a 5/6 nephrectomized (5/6Nx) rat model.

Main Methods:

  • Five groups of rats were studied: sham operated, 5/6Nx + vehicle, and 5/6Nx treated with SMP-534 at 30, 60, or 90 mg/kg.
  • Treatment commenced 13 weeks post-surgery, after the development of hypertension and renal insufficiency.
  • Serum creatinine, blood urea nitrogen, creatinine clearance, and urinary albumin were monitored.

Main Results:

  • SMP-534 treatment significantly reduced serum creatinine and blood urea nitrogen levels.
  • A dose-dependent suppression of increased urinary albumin excretion was observed in SMP-534 treated rats.
  • Survival rates were notably improved in the groups receiving SMP-534.

Conclusions:

  • Chronic oral administration of SMP-534 effectively improved renal dysfunction in 5/6Nx rats.
  • These findings suggest SMP-534 holds promise as a novel therapeutic agent for managing chronic kidney disease.

More Related Videos

5/6 Nephrectomy Using Sharp Bipolectomy Via Midline Laparotomy in Rats05:34

5/6 Nephrectomy Using Sharp Bipolectomy Via Midline Laparotomy in Rats

Published on: April 4, 2025

Related Concept Videos

Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant01:25

Drug Dosing in Renal Diseases: Dose Adjustments Based on Drug Clearance and Elimination Rate Constant

In patients with renal disease, dosage adjustments are necessary to maintain therapeutic plasma drug concentrations and prevent toxicity or subtherapeutic exposure. Renal impairment alters drug pharmacokinetics, especially in conditions like uremia, where changes such as prolonged elimination half-life and altered apparent volume of distribution can significantly affect drug disposition. These changes require careful modification of the dosing regimen to achieve the desired clinical...
Acute Kidney Injury IV: Diagnostic Studies and Prevention01:30

Acute Kidney Injury IV: Diagnostic Studies and Prevention

Accurate diagnosis and effective prevention are critical in managing Acute Kidney Injury (AKI), which is linked to high mortality rates ranging from 10% to 80%. Timely recognition of at-risk patients and careful monitoring can significantly reduce the likelihood of kidney damage.Diagnostic Assessments:The diagnostic process starts with a comprehensive medical history to identify prerenal, intrarenal, and postrenal causes.Prerenal causes, such as dehydration, hypotension, or blood loss, should...
Chronic Kidney Disease III: Interprofessional Care01:28

Chronic Kidney Disease III: Interprofessional Care

Chronic kidney disease (CKD) requires collaborative and comprehensive management. CKD progresses through stages and can lead to end-stage kidney disease (ESKD) if untreated. Interprofessional collaboration and patient education are crucial, enabling patients to manage their health and improve their quality of life.Diagnostic approach for chronic kidney diseaseThe diagnosis of CKD primarily focuses on the glomerular filtration rate (GFR), which assesses kidney function by measuring how well...
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...