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Related Concept Videos

Nephrotic Syndrome I : Introduction01:24

Nephrotic Syndrome I : Introduction

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 fluid...
Bacterial Phylum Spirochaetes01:30

Bacterial Phylum Spirochaetes

Spirochetes, unique bacteria in the phylum Spirochaetes, are gram-negative, motile, tightly coiled, slender, and flexible. They inhabit aquatic sediments and animals, with some causing diseases like syphilis. Spirochetes are classified into eight genera based on habitat, pathogenicity, phylogeny, and characteristics.Their distinctive motility arises from endoflagella, located within the cell’s periplasm. These endoflagella anchor at the cell poles and extend along the cell length, encased by a...
Diabetic Nephropathy01:28

Diabetic Nephropathy

Definition Diabetic nephropathy is a chronic kidney complication that results from prolonged hyperglycemia.Prevalence It is the most common cause of chronic kidney disease (CKD) and end-stage renal disease (ESRD) worldwide, affecting up to half of individuals with diabetes.Pathophysiology • Sustained hyperglycemia triggers multiple hemodynamic and metabolic changes in the kidney. • Early in the disease, increased renal blood flow and glomerular hyperfiltration occur due to afferent arteriolar...
Nephrotic Syndrome II : Assessment and Medical Management01:26

Nephrotic Syndrome II : Assessment and Medical Management

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 any history...
Nephrons01:10

Nephrons

The kidneys are intricate organs with millions of working units known as nephrons. Each nephron features two major structures: the renal corpuscle, which facilitates blood plasma filtration, and the renal tubule, which handles the glomerular filtrate. Blood supply is directly linked to the nephrons. The renal corpuscle consists of the glomerulus, a capillary network, and the Bowman's capsule, a double-walled epithelial structure that encases the glomerulus. The filtering of blood plasma happens...
Nephrotic Syndrome III : Nursing Management01:24

Nephrotic Syndrome III : Nursing Management

Nursing management for nephrotic syndrome adapts as the disease progresses, with strategies evolving to address advancing symptoms and complications.Early-Stage Management In the early stages, nursing interventions for nephrotic syndrome resemble those used in managing acute glomerulonephritis, focusing on symptom monitoring, fluid balance, and managing mild to moderate edema.Vital Signs: Regularly monitor blood pressure, pulse, respiratory rate, and temperature to promptly identify...

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Related Experiment Video

Updated: Jul 3, 2026

Polymerase Chain Reaction and Dot-Blot Hybridization for Leptospira Detection in Water Samples
06:05

Polymerase Chain Reaction and Dot-Blot Hybridization for Leptospira Detection in Water Samples

Published on: June 14, 2024

Leptospiral nephropathy.

Lúcia Andrade1, Elizabeth de Francesco Daher2, Antonio Carlos Seguro3

  • 1Nephrology Department, University of São Paulo School of Medicine, São Paulo, Brazil.; Intensive Care Unit, Emílio Ribas Institute of Infectology, São Paulo, Brazil.

Seminars in Nephrology
|July 16, 2008
PubMed
Summary
This summary is machine-generated.

Leptospirosis, a re-emerging zoonotic disease, causes acute kidney injury with hypokalemia due to tubular dysfunction. Early antibiotic treatment and supportive care are crucial for managing this potentially lethal infection.

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Immuno-fluorescence Assay of Leptospiral Surface-exposed Proteins
10:47

Immuno-fluorescence Assay of Leptospiral Surface-exposed Proteins

Published on: July 1, 2011

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Last Updated: Jul 3, 2026

Polymerase Chain Reaction and Dot-Blot Hybridization for Leptospira Detection in Water Samples
06:05

Polymerase Chain Reaction and Dot-Blot Hybridization for Leptospira Detection in Water Samples

Published on: June 14, 2024

Immuno-fluorescence Assay of Leptospiral Surface-exposed Proteins
10:47

Immuno-fluorescence Assay of Leptospiral Surface-exposed Proteins

Published on: July 1, 2011

Area of Science:

  • Infectious Diseases
  • Nephrology
  • Zoonotic Diseases

Background:

  • Leptospirosis is a globally re-emerging zoonotic disease with interstitial nephritis as its primary manifestation.
  • Leptospirosis-induced acute kidney injury (AKI) is often nonoliguric and characterized by hypokalemia.
  • Alterations in tubular function, preceding glomerular filtration rate decline, contribute to hypokalemia.

Purpose of the Study:

  • To elucidate the mechanisms underlying hypokalemia in leptospirosis-induced AKI.
  • To investigate the impact of leptospirosis on renal tubular function and transporter expression.
  • To outline management strategies for severe leptospirosis, including Weil's disease.

Main Methods:

  • Analysis of urinary fractional excretion of potassium and sodium in human and animal studies.
  • Western blot analysis to assess renal expression of key ion transporters (sodium/hydrogen exchanger isoform 3, aquaporin 2, NKCC2) in infected animals.
  • Review of clinical manifestations and treatment recommendations for severe leptospirosis.

Main Results:

  • Increased urinary fractional excretion of potassium and sodium, with a higher potassium/sodium ratio, suggests enhanced distal potassium secretion.
  • Impaired proximal sodium reabsorption leads to increased distal sodium delivery, driving potassium loss.
  • Reduced renal expression of NHE3 and AQP2, alongside increased NKCC2 expression, was observed in infected animals.

Conclusions:

  • Leptospirosis-induced AKI involves significant tubular dysfunction, particularly affecting proximal sodium reabsorption and distal potassium secretion.
  • Weil's disease, a severe form, presents with multi-organ involvement including AKI and pulmonary complications, carrying high mortality.
  • Prompt antibiotic therapy and intensive supportive care, including hemodialysis and lung-protective strategies, are vital for critically ill patients.