Where does CF come from?
You cannot "catch" CF, it is not contagious.
CF is not caused by anything the parents did, or didn't do, during pregnancy. The only way to get CF is to inherit 2 abnormal CF genes - one from each parent. Everyone has 2 genes when they are born that determine whether or not they have cystic fibrosis. Both of these genes need to be abnormal for someone to have cystic fibrosis. Cystic Fibrosis is very common among white (caucasan) people, and is the most commonly inherited life-shortening disease.
Statistics
One in 30 Americans are symptomless carriers of the abnormal CF gene
CF is not gender specific, boys and girls can inherit cf equally.
When two abnormal-gene carriers have children, there is a :
50% chance the child will be a carrier of the defective gene
25% change the child will have CF
25% chance the child will be unaffected (no cf, and not a carrier)
*based on recessive-gene statistics (and remember, statistics have no memory)

Symptoms of Cystic Fibrosis
Cystic fibrosis is present from birth, yet signs may not show up for weeks, months, or years afterward. People with CF can have a variety of symptoms, including:
- very salty-tasting skin
- persistent coughing, most likely with phlegm
- frequent lung infections
- wheezing and/or shortness of breath
- poor growth/weight gain in spite of a good appetite
- frequent and/ or difficult bowel movements
So, What is Cystic Fibrosis?
Cystic Fibrosis (CF) is a life-shortening/threatening, inherited (genetic), progressive lung disease, which affects the way salt and water move into and out of the body's cells. People with CF make mucus and secretions that are extra-thick, sticky, dry and hard to clear.
CF does not affect the brain or nervous system.
In cystic fibrosis patients, this thick mucus causes blockages of small tubes and ducts in the body. This mostly affects the lungs and the digestive system. They may develop chronic lung infection and disease, and they are unable to break down and absorb nutrients.
When someone has cystic fibrosis, chloride (part of what makes up salt) cannot pass through the cells normally. And more sodium (the other part of salt) may be pumped through the cells than usual—at least in the lungs. Both of these problems may cause lung mucus and fluid to be thicker and stickier than normal and sweat to be saltier than normal.
The lung problem can lead to progressive blockage, infection, and lung damage, and even death if there is too much damage (see The Cycle below), while the pancreatic blockage causes poor digestion and poor absorption of food, leading to poor growth and a failure to thrive.
The Cycle of Lung Damage:
More than any other factor, the lungs determine the health and life span of the large majority of patients with CF.
There is no such thing as a "mild" case of CF. Some may have no lung involvement at first, but if not maintained with treatments, damage can occur. Even with some lung involvement a person with CF can lead a normal active life. However, the progression of the disease makes it more difficult to take in oxygen, and, release carbon dioxide, therefore causing chronic fatigue and chronic lung infections, thereby altering one's life style to varying degrees.
Infection ----> Inflammation ----> Lung Damage -----> Infection ----->....
- White blood cells are sent to kill bacteria
- White blood cells release different chemicals to attack and destroy the bacteria
- These chemicals themselves cause inflammation
- These chemicals cannot distinguish between bacteria and airway tissue. It can also damage the cells lining the airways
In recent years, we've come to understand that this damage from inflammation from our own white blood cells is just as harmful as, or even more harmful than, the harm from the bacteria. If the damage to the airways continues, it can weaken their walls so that they become floppy. If the lung damage progresses, it can lead to permanent changes, such as scar tissue.
Progressive:
The progression of lung damage is most often very slow and subtle, but can be relentless. This is why the lung disease of CF is often referred to as "progressive" - if left to its own (and even in the majority of cases with treatment), the cycle continues and lungs progressively get worse. If this progression of infection, inflammation and lung destruction continue uninterrupted for too long, it will eventually reach a point where there is no longer enough healthy lung to bring oxygen into the body or to eliminate carbon dioxide.
How long to live?
There is NO C URE for cystic fibrosis
It is impossible to predict how long a single patient will live. However, with advancement in technology and medicines, there are better and more effective ways to manage CF. Those with cystic fibrosis are living longer and healthier than when it was first recognized in 1938. Just a few decades ago, nearly all children with CF died before the age of two.
By 1995, the average survival had improved to nearly 30 years, and longer. In the last 30 years, many new antibiotics have become available, making treatment more effective. The key to managing CF is treating the symptoms before lung damage occurs.
Pulmonary Function Tests (PFT's) are performed annually (or more) to determine and monitor the health status of the lungs. The very last resort for someone with extensive lung damage is a lung transplant. However, an individual has be close to death, since the transplant procedure itself can be risky.
Let's make C.F. stand for Cure Found
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Source: Cystic Fibrosis A Guide For Patient and Family, by David M. Orenstein (second edition)
