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Simultaneous Quantification of T-Cell Receptor Excision Circles TRECs and K-Deleting Recombination Excision Circles KRECs by Real-time PCR
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Genetics of severe combined immunodeficiency
Rajni Kumrah1, Pandiarajan Vignesh1, Pratap Patra1
1Allergy Immunology Unit, Department of Pediatrics, Advanced Pediatrics Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Genes & Diseases
|March 18, 2020
Summary
Severe Combined Immunodeficiency (SCID) involves defects in T cell development, leading to severe infections in infants. Genetic diagnosis is crucial for understanding inheritance, prognosis, and tailored treatments like hematopoietic stem cell transplantation (HSCT).
Area of Science:
- Immunology
- Genetics
- Pediatrics
Background:
- Severe Combined Immunodeficiency (SCID) comprises rare, inherited T cell disorders causing severe opportunistic infections in infants.
- Clinical symptoms include recurrent bacterial, viral, and fungal infections from early infancy.
Purpose of the Study:
- This review highlights the critical genetic aspects of SCID.
- Emphasizes the importance of genetic diagnosis beyond initial flow cytometry tests.
Main Methods:
- Review of current literature on SCID genetics.
- Analysis of diagnostic approaches including flow cytometry and genetic testing.
Main Results:
- SCID inheritance patterns include X-linked and autosomal recessive forms.
- Genetic diagnosis is essential for accurate prognostication and personalized treatment strategies.
- Genetic information guides the selection of pre-transplant conditioning regimens for HSCT.
Conclusions:
- Genetic analysis is indispensable for comprehensive SCID management.
- Understanding SCID genetics facilitates genetic counseling and improves patient outcomes through tailored HSCT protocols.
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