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Related Concept Videos

Enhanced Elimination of Poison01:26

Enhanced Elimination of Poison

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Poison can be effectively removed from the gastrointestinal (GI) tract through various decontamination procedures.
Antidotes serve a crucial role in counteracting the effects of poison by inhibiting enzymes responsible for producing harmful drug metabolites. In some cases, these toxic metabolites can be neutralized by endogenous cosubstrates, which are maintained at specific concentrations to prevent interaction with cellular macromolecules and subsequent cell death.
Renal excretion is the...
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Prevention of Further Absorption of Poison01:14

Prevention of Further Absorption of Poison

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In cases of acute poisoning, the primary objective is to prevent further absorption of the toxic substance into the body. Immediate interventions using various decontamination techniques targeting the gastrointestinal (GI) tract can achieve this. Decontamination is crucial to prevent poison from entering the systemic circulation, which involves washing affected areas with water and mild soap and removing contaminated clothing. Once external decontamination is done, attention must be turned to...
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Drug Elimination by Renal Route: Tubular Reabsorption01:22

Drug Elimination by Renal Route: Tubular Reabsorption

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During the process of renal excretion, as the glomerular filtrate progresses to the distal convoluted tubule (DCT), drugs that are highly permeable, lipophilic, and nonionized undergo passive reabsorption from the tubular fluid into the surrounding peritubular capillaries. This reabsorption process restricts their elimination through the kidneys. However, the majority of drugs are either weak acids or weak bases, and their ionization level is dependent on pH. By altering the pH of urine, the...
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Drug Elimination by Renal Route: Tubular Secretion01:15

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Once the process of glomerular filtration is completed, blood carrying unfiltered drug molecules traverses through efferent arterioles and makes its way into the peritubular capillaries in the proximal tubule. A variety of carriers play a pivotal role in actively secreting drugs from these peritubular capillaries into the tubular fluid. The organic anion transporter transfers acidic drugs, against an electrochemical gradient, from the peritubular capillaries into the renal tubule cells and...
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Renal Failure: Dose Adjustments01:11

Renal Failure: Dose Adjustments

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In patients with renal impairment, drugs undergo significant changes in their pharmacokinetics, which require dosage adjustments to ensure safe and effective therapy.
Reduced renal clearance and elimination rate are common outcomes of renal impairment. These alterations lead to a prolonged elimination half-life and an altered apparent volume of distribution for drugs. As a result, dosage adjustments are typically necessary to maintain optimal drug levels in the body.
However, dosage adjustments...
64
Dialysis01:27

Dialysis

269
Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...
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Kidney Function Modulates Gut Microbial Metabolism.

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Future of Uremic Toxin Management.

Raymond Vanholder1, Evelien Snauwaert2,3, Francis Verbeke1

  • 1Nephrology Section, Department of Internal Medicine and Pediatrics, Ghent University Hospital, 9000 Gent, Belgium.

Toxins
|November 26, 2024
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Summary

New strategies are needed to combat uremic toxins in chronic kidney disease (CKD). This review explores alternative methods beyond dialysis to manage uremic toxicity, even in early CKD stages.

Keywords:
CKD progression preventionanti-fibrosisanti-inflammatory treatmentsbioticscardiovascular disease in CKDdialysisdietinflammationsenolyticstoxin removaluremic toxins

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Area of Science:

  • Nephrology
  • Toxicology
  • Internal Medicine

Background:

  • Uremic toxins accumulate during chronic kidney disease (CKD) progression, driving uremic syndrome.
  • Current management often focuses on dialysis, which has limitations for early-stage CKD and only partially mitigates toxicity.
  • Advances in understanding uremic toxin effects have outpaced strategies for their reduction.

Purpose of the Study:

  • To review emerging and established alternative methods for counteracting uremic toxicity in CKD.
  • To highlight interventions beneficial in earlier stages of CKD, not just end-stage disease.
  • To explore a range of therapeutic approaches, including dietary, pharmacological, and extracorporeal methods.

Main Methods:

  • Literature review of recent research on uremic toxin management.
  • Focus on non-dialysis interventions for CKD.
  • Categorization of methods into kidney function preservation, cardiovascular protection, gastrointestinal interventions, and pharmacologic approaches.

Main Results:

  • Established and experimental methods exist to reduce uremic toxin burden.
  • Interventions targeting kidney function, cardiovascular health, gut microbiome, and pharmacotherapy show promise.
  • Alternative extracorporeal methods for toxin removal are also under investigation.

Conclusions:

  • There is a need for broader CKD treatment strategies beyond dialysis to address uremic toxicity.
  • Alternative approaches offer potential benefits across various CKD stages.
  • Further research and evidence-based assessment are crucial for developing sustainable CKD treatment models.