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Cystic Fibrosis: Pathogenesis01:23

Cystic Fibrosis: Pathogenesis

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Cystic fibrosis (CF), an autosomal recessive disorder, significantly affects the function of exocrine glands. This genetically inherited disease is characterized by the production of thick and sticky mucus, which can severely affect various organs and systems in the body.
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Cystic fibrosis (CF) is an autosomal recessive disorder that predominantly affects individuals of Northern European descent, occurring at a rate of 1 in 3500. It is caused by a genetic mutation in a gene on chromosome 7, most commonly the ΔF508 mutation, that codes for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. This results in thicker mucus secretions and obstruction pathologies in multiple organs, including the lungs and sinuses.
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Transcellular transport of solutes is the movement of substances like monosaccharides and amino acids through polarized cells. This transport mechanism is primarily seen in epithelial and endothelial cells aided by membrane transport proteins such as channels and transporters. The tight junctions between these cells confine the membrane proteins to the two sides of the cell. The epithelial cells have distinct apical and basolateral domains. In contrast, the endothelial cells show the luminal...
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Glucose transporters facilitate the transport of glucose across the cell membrane. In addition to glucose, some glucose transporters can also aid the movement of other hexoses such as fructose, mannose, and galactose.
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Updated: Nov 19, 2025

Implementation of Non-invasive Point of Care Transient Elastography for Evaluation of Liver Disease in Pediatric Populations with Cystic Fibrosis
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Cystic Fibrosis.

Kimberly M Dickinson1, Joseph M Collaco1

  • 1Eudowood Division of Pediatric Respiratory Sciences, The Johns Hopkins University School of Medicine, Baltimore, MD.

Pediatrics in Review
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This summary is machine-generated.

Cystic fibrosis (CF) is a common genetic disorder impacting multiple organs. Advances in newborn screening, care guidelines, and targeted therapies are improving survival and quality of life for CF patients.

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Area of Science:

  • Genetics and Medicine
  • Pulmonology
  • Gastroenterology

Background:

  • Cystic fibrosis (CF) is a prevalent genetic disorder with diverse clinical manifestations.
  • Key issues include obstructive lung disease, pancreatic insufficiency, malnutrition, and infertility.
  • Despite being life-shortening, CF survival has significantly improved.

Purpose of the Study:

  • To review current knowledge on CF disease.
  • To discuss manifestations, diagnosis, and management strategies.
  • To highlight common complications and future therapeutic directions.

Main Methods:

  • Literature review of cystic fibrosis.
  • Synthesis of current research on CF manifestations and treatments.
  • Analysis of diagnostic and management approaches.

Main Results:

  • Improved median survival age to 46.2 years.
  • Enhanced outcomes attributed to newborn screening, evidence-based guidelines, and specialized care centers.
  • Emergence of mutation-specific modulator therapies offers future promise.

Conclusions:

  • CF management has advanced significantly, improving patient longevity.
  • Early diagnosis and comprehensive care are crucial for managing CF.
  • Novel modulator therapies represent a paradigm shift for CF treatment and quality of life.