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Related Concept Videos

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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Factors Affecting Renal Clearance: Renal Impairment01:17

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Renal dysfunction significantly impairs the renal clearance of drugs, leading to potential complications in drug therapy. Renal failure, which can be caused by various factors, poses a significant challenge in the elimination of drugs from the body.
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Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously...
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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.
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The glomerular filtration rate (GFR) is a critical marker of kidney function, reflecting the efficiency of filtration by the glomeruli. Renal clearance of specific substances, such as inulin or creatinine, is commonly used to measure GFR.
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Renal Drug Clearance: Comparison Between Renal Excretion Methods01:08

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Renal clearance is a critical parameter encompassing kidney filtration, secretion, and reabsorption processes. It is calculated using a specific equation to determine the rate at which the kidneys clear a drug.
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Transcutaneous Assessment of Renal Function in Conscious Rodents
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Marijuana Use and Renal Function Among US Adults.

Chang Lu1, Stefania I Papatheodorou2, John Danziger3

  • 1Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, Mass.

The American Journal of Medicine
|January 3, 2018
PubMed
Summary

This study found no significant link between marijuana use and kidney function in US adults. Recent or past cannabis consumption did not impact serum creatinine, estimated glomerular filtration rate, or chronic kidney disease odds.

Keywords:
Marijuana useRenal function

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Area of Science:

  • Public Health
  • Nephrology
  • Epidemiology

Background:

  • Increasing legalization of marijuana presents potential shifts in population use patterns.
  • Limited research exists on the health effects of marijuana, particularly on renal function.
  • This study addresses the knowledge gap regarding marijuana's impact on kidney health.

Purpose of the Study:

  • To investigate the association between recent and past marijuana use and key indicators of renal function.
  • To determine if marijuana consumption correlates with altered serum creatinine, estimated glomerular filtration rate (eGFR), or chronic kidney disease (CKD) prevalence.
  • To provide data on marijuana's effects on kidney health in the context of changing legal landscapes.

Main Methods:

  • A cross-sectional analysis of 13,995 US adults (aged 18-59) from the National Health and Nutrition Examination Survey (2007-2014).
  • Utilized weighted multivariable linear regression to examine associations between marijuana use (never, past, current) and renal function markers.
  • Assessed serum creatinine, eGFR, and the odds of having stage 2 or greater CKD.

Main Results:

  • No statistically significant associations were found between marijuana use (current or past) and serum creatinine, eGFR, or odds of CKD.
  • A non-significant trend of increasing serum creatinine and eGFR was observed in past and current users compared to never users.
  • Sensitivity analysis excluding individuals with cardiovascular disease yielded similar results.

Conclusions:

  • Current or past self-reported marijuana use showed no clinically significant association with measured kidney function.
  • The findings suggest that, based on this cohort, marijuana use does not appear to adversely affect major markers of renal health.
  • Further research may be warranted to explore long-term effects or specific cannabinoid impacts on kidney function.