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What Causes Cystic Fibrosis? Low O2 in Body and Ion Pumps

Medical doctors smilingWhat is the cause of cystic fibrosis (CF)? The cause of cystic fibrosis on the cellular level is tissue hypoxia or low oxygen levels in body cells. This makes complete sense since ionic pumps require oxygen, and it has been known for decades that chloride and other pumps are ineffective in conditions of tissue hypoxia even in normal people (Clerici & Matthay, 2000; Karle et al, 2004; Mairbaurl et al, 1997; Mairbaurl et al, 2002).

However, there are even more specific findings. It was recently discovered that CFTR mutation gene (cystic fibrosis transmembrane conductance regulator) is controlled by levels of oxygen in body cells in a dose dependent manner (Bebk et al, 2001; Guimbellot et al, 2008; Yeger et al, 2001; Zheng et al, 2009).

Effects of overbreathing on brain oxygen levelsThese revolutionary discoveries force us to reconsider the real causes of cystic fibrosis. It is not just a genetic disease. Advance of cystic fibrosis requires low oxygen levels. Normal oxygen levels do not allow development of the thick mucus and respiratory infections, which are the main symptoms of cystic fibrosis. What is the cause of low body oxygenation in people with cystic fibrosis?

All available medical evidence has shown the presence of chronic hyperventilation in CF patients. Medical research has also confirmed the injurious effects of alveolar hypocapnia on lung tissue. Furthermore, medical doctors from the Department of Medicine, University of Texas Health Science Center in Houston in their publication "Importance of respiratory rate as an indicator of respiratory dysfunction in patients with cystic fibrosis" observed that "Respiratory frequency was increased in the patients with cystic fibrosis compared with a group of healthy control subjects, as was minute ventilation and mean inspiratory flow. Respiratory frequency was a sensitive predictor of respiratory dysfunction" (Browning et al, 1990).

Minute ventilation in cystic fibrosis patients at rest

Condition Minute
ventilation
Number of
patients
References
Normal breathing 6 L/min - Medical textbooks
Healthy subjects 6-7 L/min >400 Results of 14 studies
Cystic fibrosis 15 L/min 15 Fauroux et al, 2006
Cystic fibrosis* 13 (±2) L/min 10 Bell et al, 1996
Cystic fibrosis 10 L/min 11 Browning et al, 1990
Cystic fibrosis 11-14 L/min 6 Tepper et al, 1983
Cystic fibrosis* 10 L/min 10 Ward et al, 1999
CF and diabetes* 10 L/min 7 Ward et al, 1999
Cystic fibrosis 16 L/min 7 Dodd et al, 2006
Cystic fibrosis 18 L/min 9 McKone et al, 2005
Click here for all Cystic Fibrosis References

People with cystic fibrosis and doctorsDevelopment of cystic fibrosis occurs when the body oxygen level drops below 20 seconds (e.g. even if it only drops this low for some hours as during the early morning hours when the patients is at rest sleeping). See the links below for description of the Control Pause (CP) as a means of assessing body oxygen levels.

Note that most modern people have less than 20 s in the morning and, hence, having genetic predisposition to cystic fibrosis means gradual development of this fatal health condition for modern man. Poor results for the body-oxygen test (less than 20 s) cause the abnormality related to regulation of the chloride transport across epithelial cells on mucosal surfaces and this causes decreased secretion of chloride ions and increased reabsorption of sodium ions and water molecules across epithelial cells. This leads to reduced thickness of epithelial lining fluid and lowered hydration of mucus. Hence, mucus become more viscous.

Cystic fibrosis in DNAIn addition, as for people with bronchitis and sinusitis, less than 20 s CP means the suppressed immune system. That causes frequent infections in sinuses and lungs and chronic inflammation. As a result, during physical exercise people with cystic fibrosis often develop coughing, wheezing, chest tightness and/or breathlessness. Such clinical picture is typical for other chronic disorders (asthma, bronchitis, etc.) in conditions of cell hypoxia and elevated lactic acid on blood. Anaerobic energy production mechanism in cells is also caused by less than 20 s CP. This is the key factor that triggers expression of the CFTR (cystic fibrosis transmembrane conductance regulator) gene. Thus, while a genetic mutation determines susceptibility to cystic fibrosis, chronic hyperventilation initiates expression of and exacerbates the disease.

Mucosal cellsSimilar pathological processes with mucosal abnormalities, due to pathological changes in CFTR, take place in pancreas, sweat glands, GI tract, and other exocrine tissues. Instead of helping the immune system to fight pathogens, the increased viscosity of mucosal secretions slows down immune responses and promotes infections causing more severe symptoms of CF.

Too viscous mucus can also block small tubes that transport digestive enzymes from the pancreas to the small intestine. Enzyme deficiency causes inability to digest foods and development of pathological bacterial flora in the gut causing foul-smelling, greasy stools; constipation and distended abdomen; reduced weight and poor growth in children; and even blockage in the intestines, especially in the newborn. Digestive complications include pancreatic insufficiency, meconium ileus, peptic ulcer, rectal prolapse, and gastroesophageal reflux. Among typical hepatic involvements are fatty liver and liver cirrhosis.Medical people smiling

Cystic fibrosis is reversible

Russian medical doctors have found that symptoms of cystic fibrosis are reversible, if the person slows down his or her breathing pattern back to the medical norm and achieves more than 40 s for the body-oxygen test. So far, hundreds of Russians with cystic fibrosis reversed their health problems and achieved normal health. For more information about health zones related to the body oxygen level and typical symptoms in each zone, visit cystic fibrosis links below.

YouTube video: Trailer of the Amazon Kindle Book "Cystic Fibrosis: Defeated with Higher Body Oxygenation"

References quoted on this page: What Causes Cystic Fibrosis?.

Or go back to Cystic fibrosis pages
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