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The ciliary structures were first seen in 1647 by Antonie Leeuwenhoek while observing the protozoans. In lower organisms, these appendages are responsible for cell movement, while in higher organisms, these appendages help in the movement of the extracellular fluids within the body cavities.
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The primary cilium, made up of microtubules, acts as antennae on the cell surfaces for relaying external stimuli into the cells. These fine hair-like structures are present, generally one per cell. These are non-motile cilia in a 9+0 microtubules arrangement, where the central pair of microtubules are absent. The primary cilia arise from the basal body embedded in the cell membrane. Intraflagellar transport (IFT) carries requisite proteins from the cytoplasm to the cilium because the primary...
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Accuracy of Clinical Phenotype for Diagnosing Adults With Primary Ciliary Dyskinesia.

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Updated: Jun 27, 2025

High-speed Video Microscopy Analysis for First-line Diagnosis of Primary Ciliary Dyskinesia
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High-speed Video Microscopy Analysis for First-line Diagnosis of Primary Ciliary Dyskinesia

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Primary Ciliary Dyskinesia.

Wallace B Wee1,2,3, BreAnna Kinghorn4, Stephanie D Davis5

  • 1Hospital for Sick Children, Toronto, Ontario, Canada.

Pediatrics
|May 2, 2024
PubMed
Summary
This summary is machine-generated.

Primary ciliary dyskinesia (PCD) is a rare genetic disorder affecting cilia, leading to chronic respiratory issues. Advances in understanding PCD are improving diagnosis and management, but many cases remain underrecognized.

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Area of Science:

  • Genetics
  • Pulmonology
  • Rare Diseases

Background:

  • Primary ciliary dyskinesia (PCD) is a rare genetic disorder impacting motile cilia function.
  • This dysfunction leads to impaired mucociliary clearance, causing chronic sino-oto-pulmonary disease and other serious health issues.
  • Despite research advancements, PCD is frequently underdiagnosed in clinical practice.

Purpose of the Study:

  • To provide a comprehensive overview of the current understanding of Primary ciliary dyskinesia (PCD).
  • To highlight recent advancements in diagnostics, genotype-phenotype correlations, and management strategies for PCD.
  • To enhance clinical recognition and improve patient identification for therapeutic trials.

Main Methods:

  • This review synthesizes current research and clinical knowledge on Primary ciliary dyskinesia (PCD).
  • It incorporates findings from genetic database analyses and international collaborative studies.
  • The review focuses on pathophysiology, clinical manifestations, diagnostic practices, and therapeutic approaches.

Main Results:

  • Significant progress has been made in understanding PCD prevalence, phenotypes, and genetic factors.
  • Novel diagnostic tools and genotype-phenotype associations are emerging.
  • Current management strategies and the potential for innovative therapeutics are being refined.

Conclusions:

  • Improved knowledge of PCD's clinical spectrum and diagnostic advancements can increase disease recognition.
  • Enhanced diagnostic testing and management are crucial for affected individuals.
  • Accurate patient identification is essential for enrollment in upcoming clinical therapeutic trials for PCD.