Cystic fibrosisis an inheritable and life-threatening disorder that affects roughly 30,000 Americans and as many as 70,000 people worldwide.
Genetics
Cystic fibrosis (CF) is anautosomal recessive disorder.
By definition, a recessive gene is one that can be masked by a dominant gene.
Illustration by Verywell
Types of CFTR Mutations
Not all CFTR mutations are created equal.
Based on how defective the protein is, these systems can malfunction in often serious ways.
The CFTR protein is referred to as a channel protein.
Get our printable guide for your next doctor’s appointment to help you ask the right questions.
With cystic fibrosis, the CFTR protein functions abnormally.
That said, there are factors that can influence the severity and progression of the disease.
Chief among these is the timing of diagnosis and treatment.
Newborn screening is considered vital as it allows immediate treatment of the disease.
Doing so can slow or prevent the damage that can occur in early childhood.
Despite advances in diagnosis and treatment, challenges remain.
Cystic Fibrosis Foundation.About cystic fibrosis.
Cystic Fibrosis Foundation.Types of CFTR mutations.
University of California San Francisco.FAQ: Carrier testing for cystic fibrosis.
National Human Genome Research Institute.Recessive traits and alleles.
Cystic Fibrosis Foundation.CF genetics: The basics.
Cystic Fibrosis Foundation.Carrier testing for cystic fibrosis.
National Heart Lung, and Blood Institute.Facts about cystic fibrosis.
Drubin DG, ed.MBoC.
2011;3(74).
doi:10.1126/scitranslmed.3001868
Marson FAL.Disease-modifying genetic factors in cystic fibrosis.Curr Opin Pulm Med.
2018;24(3):296-308. doi:10.1097/MCP.0000000000000479
MedlinePlus.CFTR gene.
Cystic Fibrosis Foundation.Basics of the CFTR protein.
American Lung Association.Cystic fibrosis (CF).
Johns Hopkins Medicine.Cystic fibrosis.
Kobelska-Dubiel N, Klincewicz B, Cichy W.Liver disease in cystic fibrosis.Prz Gastroenterol.2014;3:136-141. doi:10.5114/pg.2014.43574
Cystic Fibrosis Foundation.Fertility.
Cystic Fibrosis Foundation.Cystic fibrosis-related diabetes.
Cystic Fibrosis Foundation.Newborn screening for CF.
doi:10.1002/14651858.CD001912.pub4
Malhotra S, Hayes Jr. D, Wozniak DJ.
American Society for Microbiology.
2014;148(2):427-9. doi:10.1053/j.gastro.2014.11.002
American Lung Association.Treating and managing cystic fibrosis.