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Related Concept Videos

Acute Kidney Injury I: Introduction01:22

Acute Kidney Injury I: Introduction

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Introduction:Acute Kidney Injury (AKI) describes a swift decrease in kidney function occurring over hours to days, characterized by the kidneys' failure to remove waste products from the bloodstream. This leads to dangerous complications like metabolic acidosis, fluid overload, and electrolyte imbalances, such as hyperkalemia, which can cause life-threatening arrhythmias. AKI is common in both hospital and outpatient settings, often triggered by dehydration, sepsis, or exposure to nephrotoxic...
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Nephrotic Syndrome I : Introduction01:24

Nephrotic Syndrome I : Introduction

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Nephrotic Syndrome is a chronic kidney disorder defined by clinical findings such as severe proteinuria, hypoalbuminemia, hyperlipidemia, and edema. These symptoms result from damage to the glomeruli, the kidney’s filtering units, increasing their permeability to proteins.Definition and Meaning:Proteinuria, defined as the loss of more than 3.5 grams of protein per day in adults, is a crucial feature of nephrotic syndrome. This condition is often accompanied by edema, the accumulation of...
374
Serum Studies: Renal Function Tests01:24

Serum Studies: Renal Function Tests

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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.
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Acute Kidney Injury III: Clinical Manifestations01:29

Acute Kidney Injury III: Clinical Manifestations

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Acute Kidney Injury (AKI) progresses through distinct clinical phases: the oliguric, diuretic, and recovery phases, each marked by unique manifestations and challenges.Oliguric Phase:The oliguric phase is the initial stage of AKI, typically lasting 10 to 14 days. This phase is marked by a significant reduction in urine output, usually less than 400 mL per day, indicating decreased kidney function. Fluid retention is a prominent feature, leading to symptoms such as edema, hypertension, and...
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Nephrotic Syndrome II : Assessment and Medical Management01:26

Nephrotic Syndrome II : Assessment and Medical Management

121
IntroductionNephrotic syndrome is a kidney disorder marked by excessive protein loss in the urine, leading to various systemic complications. This condition often results from damage to the glomeruli—the kidney's filtering units—causing proteinuria, low blood protein levels, and fluid retention. Understanding the assessment, diagnosis, and management of nephrotic syndrome is essential for effective treatment and prevention of further kidney damage.AssessmentPatient History: Document...
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Chronic Kidney Disease I: Introduction01:25

Chronic Kidney Disease I: Introduction

437
Chronic Kidney Disease (CKD) arises when the kidneys progressively lose their ability to function, ultimately leading to end-stage renal disease. At this advanced stage, the kidneys can no longer filter waste or maintain essential body functions, requiring renal replacement therapy (RRT) through dialysis or a kidney transplant for survival.Early-stage chronic kidney disease and detection challengesIn CKD's early stages, symptoms often remain absent because healthy nephrons compensate for...
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Related Experiment Video

Updated: Dec 14, 2025

Using 2-Photon Microscopy to Quantify the Effects of Chronic Unilateral Ureteral Obstruction on Glomerular Processes
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A Slight Decrease in the Serum Albumin Level Is Associated with the Rapid Progression of Kidney Dysfunction, Even

Hoichi Amano1,2, Kazunobu Yoshimura3, Ryutaro Iijima3

  • 1Graduate School of Public Health, Teikyo University, Japan.

Internal Medicine (Tokyo, Japan)
|July 17, 2020
PubMed
Summary
This summary is machine-generated.

Lower serum albumin levels, even within the normal range, are linked to a faster decline in kidney function. This finding highlights albumin as an independent risk factor for kidney function deterioration.

Keywords:
albuminchronic kidney diseasegeneral populationkidney dysfunction

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Area of Science:

  • Nephrology
  • Biochemistry
  • Epidemiology

Background:

  • Low-normal serum albumin is associated with cardiovascular disease and mortality.
  • The impact of serum albumin levels on future kidney function decline is not well understood.

Purpose of the Study:

  • To investigate the association between serum albumin levels and the rate of kidney function decline in the general population.

Main Methods:

  • Analysis of data from 11,000 participants in a Japanese health checkup program (1998-2006).
  • Kidney function decline defined as an estimated glomerular filtration rate (eGFR) difference of ≥3 mL/min/1.73 m²/year.
  • Logistic regression analysis used to assess the risk of decreased kidney function based on serum albumin levels (continuous and categorical: ≤4.3, 4.4-4.6, ≥4.7 g/dL).

Main Results:

  • 346 participants experienced a ΔeGFR/year of ≥3.
  • Compared to albumin levels ≥4.7 g/dL, levels ≤4.3 g/dL showed a significantly higher risk (adjusted OR = 2.10, 95% CI: 1.20-2.93).
  • Levels of 4.4-4.6 g/dL also indicated an increased risk (adjusted OR = 1.53, 95% CI: 1.14-2.05).

Conclusions:

  • Decreased serum albumin levels are an independent risk factor for rapid kidney function decline.
  • This association holds true even for albumin levels within the normal range.
  • Monitoring serum albumin may help identify individuals at higher risk for kidney function deterioration.