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Related Concept Videos

Drug Dosing in Renal Diseases: Measurement of Glomerular Filtration Rate01:25

Drug Dosing in Renal Diseases: Measurement of Glomerular Filtration Rate

The glomerular filtration rate (GFR) is a critical indicator of kidney health, reflecting how well the kidneys filter blood. Changes in GFR can signal potential kidney impairment, necessitating accurate measurement methods to monitor kidney function effectively.Various molecules can serve as markers for GFR measurement, with the ideal marker meeting several specific criteria. It must freely filter at the glomerulus, avoid reabsorption or secretion by the renal tubules, remain unmetabolized, not...
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...
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...
Serum Studies: Renal Function Tests01:24

Serum Studies: Renal Function Tests

Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.
Renal Corpuscle01:20

Renal Corpuscle

The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous capillaries...
Renal Clearance01:23

Renal Clearance

The glomerular filtration rate (GFR) is a critical marker of kidney function, reflecting the efficiency of filtration by the glomeruli. Renal clearance of specific substances, such as inulin or creatinine, is commonly used to measure GFR.
Renal clearance refers to the volume of plasma cleared of a specific substance, such as creatinine, per unit of time. To measure clearance, urine samples are collected over a 24-hour period during each bladder voiding, followed by a single blood sample at the...

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Assessment of Kidney Function in Mouse Models of Glomerular Disease
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Morphologic evaluation of renal function using semi-quantitative method in primary nonproliferative glomerular

Aruna K Prayaga1, S V Anuradha, Y Manjusha

  • 1Department of Pathology, Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad 500 082, India. arunaprayaga56@yahoo.com

Indian Journal of Pathology & Microbiology
|March 12, 2011
PubMed
Summary

A new semi-quantitative scoring system effectively predicts outcomes in primary nonproliferative glomerular diseases. This method, based on the modified Banff schema, correlates fibrosis scores with renal function, aiding in patient prognostication.

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Area of Science:

  • Nephrology
  • Renal Pathology
  • Glomerular Diseases

Background:

  • Fibrosis is a critical indicator of poor prognosis in renal pathology.
  • Semi-quantitative assessment is a standard method for prognostication in pathology.
  • Primary nonproliferative glomerular diseases require accurate prognostic tools.

Purpose of the Study:

  • To develop and validate a semi-quantitative scoring system for prognostication in primary nonproliferative glomerular diseases.
  • To adapt the Banff schema for assessing fibrosis in different renal compartments.
  • To correlate scoring results with clinical markers of renal function.

Main Methods:

  • Modified Banff schema (1997) applied to 76 renal biopsies.
  • Independent scoring of glomerular, tubulointerstitial, and vascular compartments.
  • Total scores calculated and correlated with serum creatinine levels using Pearson correlation and t-tests.

Main Results:

  • Significant P values obtained for total and individual compartment scores.
  • Demonstrated a linear correlation between fibrosis scores and serum creatinine levels.
  • A total score of ≥5 was identified as a significant prognostic indicator.

Conclusions:

  • The modified Banff schema-based semi-quantitative scoring system is a valuable tool for prognosticating renal biopsies in primary nonproliferative glomerular diseases.
  • This system provides objective and reproducible assessment of fibrosis.
  • It aids clinicians in predicting patient outcomes and guiding treatment strategies.