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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...
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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...
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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 fluid...
Chronic Kidney Disease I: Introduction01:25

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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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Chronic Kidney Disease II: Clinical Manifestations

Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
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Nephrotic Syndrome II : Assessment and Medical Management

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C3 glomerulopathies. A new perspective on glomerular diseases.

Cristina Rabasco-Ruiz1, Ana Huerta-Arroyo, Jara Caro-Espada

  • 1Servicio de Nefrología. Hospital Universitario 12 de Octubre. Madrid, Spain. crisrabasco@hotmail.com

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C3 glomerulopathy (C3G) involves the alternative complement pathway, causing kidney injury. Understanding C3G pathogenesis is key to developing new treatments targeting complement hyperactivity.

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06:39

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Published on: August 19, 2020

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Area of Science:

  • Nephrology
  • Immunology
  • Pathology

Background:

  • Membranoproliferative glomerulonephritis (MPGN) is a pattern of kidney injury identifiable by light microscopy.
  • Subgrouping MPGN requires advanced techniques like electron microscopy and immunofluorescence to analyze electron-dense deposits.
  • C3 glomerulopathy (C3G) is a distinct entity characterized by MPGN on light microscopy and isolated C3 deposition on immunofluorescence.

Purpose of the Study:

  • To review the pathogenesis of C3 glomerulopathies (C3G).
  • To highlight the critical role of the complement system, particularly the alternative pathway, in C3G.
  • To discuss recent patient cohorts and current/potential treatment options.

Main Methods:

  • Review of existing literature on C3 glomerulopathy.
  • Analysis of diagnostic criteria including light microscopy, electron microscopy, and immunofluorescence.
  • Focus on complement cascade dysregulation in C3G pathogenesis.

Main Results:

  • C3G pathogenesis is linked to hyperactivity of the alternative and terminal complement pathways.
  • Isolated C3 deposition on immunofluorescence is a hallmark of C3G.
  • Understanding complement dysregulation is crucial for C3G management.

Conclusions:

  • C3G is a distinct glomerulopathy driven by complement dysregulation.
  • Further research into complement pathways may lead to targeted therapies.
  • Anti-complement drugs like eculizumab show potential for C3G treatment.