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High-speed Video Microscopy Analysis for First-line Diagnosis of Primary Ciliary Dyskinesia
Published on: January 19, 2022
Diagnostics and Management of Male Infertility in Primary Ciliary Dyskinesia
Channa N Jayasena1, Anu Sironen2
1Section of Investigative Medicine, Imperial College London, London W12 0NN, UK.
Abstract:
Primary ciliary dyskinesia (PCD), a disease caused by the malfunction of motile cilia, manifests mainly with chronic recurrent respiratory infections. In men, PCD is also often associated with infertility due to immotile sperm. Since causative mutations for PCD were identified in over 50 genes, the role of these genes in sperm development should be investigated in order to understand the effect of PCD mutations on male fertility. Previous studies showed that different dynein arm heavy chains are present in respiratory cilia and sperm flagellum, which may partially explain the variable effects of mutations on airways and fertility. Furthermore, recent studies showed that male reproductive tract motile cilia may play an important part in sperm maturation and transport. In some PCD patients, extremely low sperm counts were reported, which may be due to motile cilia dysfunction in the reproductive tract rather than problems with sperm development. However, the exact roles of PCD genes in male fertility require additional studies, as do the treatment options. In this review, we discuss the diagnostic and treatment options for men with PCD based on the current knowledge.
Insights
Primary ciliary dyskinesia (PCD) affects male fertility through immotile sperm and potential reproductive tract cilia dysfunction. Further research is needed to understand PCD gene roles and treatment options for male infertility.
Area of Science:
- Genetics
- Reproductive Medicine
- Pulmonology
Background:
- Primary ciliary dyskinesia (PCD) is a genetic disorder characterized by malfunctioning motile cilia, leading to chronic respiratory infections.
- Male infertility is a common comorbidity of PCD, often linked to immotile sperm.
- Over 50 genes have been implicated in PCD, necessitating investigation into their specific roles in male fertility.
Purpose of the Study:
- To explore the impact of PCD-causing mutations on male fertility.
- To investigate the function of PCD genes in sperm development and reproductive tract cilia.
- To review current diagnostic and treatment strategies for men with PCD and associated infertility.
Main Methods:
- Review of existing literature on Primary Ciliary Dyskinesia (PCD) and male infertility.
- Analysis of studies on gene mutations associated with PCD.
- Examination of research on cilia function in the respiratory tract and male reproductive system.
Main Results:
- Dynein arm heavy chains differ between respiratory cilia and sperm flagella, potentially explaining variable PCD effects.
- Motile cilia in the male reproductive tract may be crucial for sperm maturation and transport.
- Some PCD patients exhibit extremely low sperm counts, possibly due to reproductive tract cilia dysfunction.
Conclusions:
- The precise roles of PCD genes in male fertility require further elucidation.
- Understanding gene function is critical for developing targeted treatments for PCD-related male infertility.
- Comprehensive diagnostic and therapeutic approaches are essential for managing male infertility in PCD patients.
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