22 October 2007 cystic fibrosis
Cystic fibrosis is caused by a faulty gene in the body called the ,"cystis fibrosis transmembrane conductance regulator". Or the cftr gene for short.
To actually inherit cystic fibrosis, two genes one from either parent has to be passed on whilst still in the womb. If only one gene is inherited that person is a carrier of the disease and will not have any symptoms of cystic fibrosis.Cystic fibrosis is an autosomal recessive disorder which means it is inherited from either parent. When both parents are carriers of the cystic fibrosis gene whithin each pregnancy there is a one in four chance of having a child with cystic fibrosis,a one in two chance of having a child who is a carrier,a one in four chance of also having a child unaffected.
There are several different types of genetic mutation which are associated with the disease.
Cystic fibrosis affects the internal organs of the body, such as the pancreas which enables us to produce enzymes. In a cystic fibrosis sufferer the pancreas does not produce these important chemical enzymes, making the effects on their body great, as a cystic fibrosis sufferer would find it difficult to gain weight. Other effects on the body would also include diabetes because of the pancreas not working sufficiently. Men with cystic fibrosis suffer infertility due to the tube which carries sperm becoming blocked.
Women with cystic fibrosis suffer fertility problems also, because of the nutritional factors of not gaining weight , due to this menstrual periods can become irregular and cause problems in conceiving a child.
In the United Kingdom cystic fibrosis is a very common disease, and the cystic fibrosis trust claims that around 8,000 people suffer from it in the United Kingdom. The cystic fibrosis trust also claims that over two million people in the United Kingdom are carriers of the gene that causes the disease. They estimated that around one in every twenty five people carry this...