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Related Concept Videos

Filtration00:53

Filtration

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Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...
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Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
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Filtration and Urine Formation01:32

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The function of the kidneys is to filter, reabsorb, secrete, and excrete. Every day the kidneys filter nearly 180 liters of blood, initially removing water and solutes but ultimately returning nearly all filtrates into circulation with the help of osmoregulatory hormones. This process removes wastes and toxins but is also crucial to maintain water and electrolyte levels. Most of these functions are performed by the tiny but numerous nephrons contained within the kidneys.
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Dialysis is a diffusion-based purification process that separates analyte molecules from a complex matrix. This is accomplished by allowing molecules in the solution to pass through a semipermeable membrane into a liquid on the other side. The membrane is usually made of cellulose acetate or cellulose nitrate, and the second liquid must be miscible with the solution. Ions (e.g., chloride or sodium) or organic molecules (e.g., glucose) can pass through the membrane pores, which generally have...
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Recent Progress in Double Filtration Plasmapheresis.

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PubMed
Summary
This summary is machine-generated.

Double-filtration plasmapheresis is an advanced blood purification method that removes harmful molecules while keeping beneficial ones. This technique reduces the need for plasma replacement in various refractory diseases.

Keywords:
double filtration plasmapheresishypertriglyceridemiapancreatitisplasma exchangerenal disease

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Area of Science:

  • Nephrology
  • Neurology
  • Immunology
  • Extracorporeal Blood Purification

Background:

  • Pathogenic macromolecules contribute to various refractory diseases.
  • Conventional plasma exchange can lead to loss of beneficial plasma components.
  • Double-filtration plasmapheresis (DFPP) offers a selective removal method.

Purpose of the Study:

  • To review the therapeutic mechanisms of DFPP.
  • To examine recent clinical advances and applications of DFPP.
  • To assess the safety, limitations, and future prospects of DFPP.

Main Methods:

  • Systematic review of existing literature on DFPP.
  • Analysis of DFPP's two-step filtration process.
  • Evaluation of DFPP's efficacy in autoimmune, neurological, metabolic, and renal diseases.

Main Results:

  • DFPP selectively removes pathogenic macromolecules based on molecular weight.
  • The technique preserves essential plasma proteins like albumin.
  • DFPP has demonstrated efficacy in managing refractory autoimmune, neurological, metabolic, and renal conditions.

Conclusions:

  • DFPP is an effective blood purification technique with a favorable safety profile.
  • It minimizes the need for exogenous plasma replacement compared to conventional methods.
  • DFPP holds significant promise for treating complex refractory diseases.