Cystic Fibrosis is an autosomal recessive disorder caused by mutations in the CFTR gene. Heterozygous carriers (those who have inherited only one copy of the altered gene) are asymptomatic. Two altered genes must be present for CF to appear.
Cystic fibrosis is a disease of the mucus glands that affects many of the body's organs. This disorder causes progressive damage to the respiratory system and chronic digestive system problems.
Over time, mucus buildup and infections lead to permanent lung damage, including the formation of scar tissue (fibrosis) and cysts in the lungs. Some babies with cystic fibrosis have meconium ileus, a blockage of the intestine that occurs shortly after birth. Infertility is common in men with cystic fibrosis.
About 20 000 Europeans have cystic fibrosis and each year about 2500 babies are born with CF.
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