A Brief Note On Cystic Fibrosis And The Common Autosomal Recessive Disorder

Cystic Fibrosis (CF) is an autosomal recessive genetic disease that causes thickened mucus to form in the lungs, pancreas, and other organs. It affects a specific protein called Cystic Fibrosis Transmembrane Regulator (CFTR) that controls the normal movement of sodium, chloride, and water in and out of the cells within the body. Those diagnosed with CF have either too little or abnormal CFTR. When CFTR is absent or defective, the mucus usually secreted by the cells in the pulmonary airways, pancreatic ducts, and gastrointestinal tract become thickened, leading to obstructions, frequent infection, and loss of function in the affected organs (Cystic Fibrosis Symptoms, Causes & Risk Factors, 2018). According to the Cystic Fibrosis Foundation

Cystic fibrosis is an existence restricting autosomal recessive disorder that influences 70,000 people around the world. The condition is known to affect principally those of European descent, though cystic fibrosis has been accounted for in all races and ethnicities. [12] Unusually viscous emissions in the airway of the lungs and in ducts of the pancreas in people with cystic fibrosis cause hindrances that prompt aggravation, tissue harm and destruction of both organ systems. Studies show that Cystic Fibrosis is more prominent in White Americans than African Americans, and Hispanics. A large number of Americans are carriers of this mutated Cystic Fibrosis gene, however if an individual is affected they must acquire two of these genes keeping

CF is caused by a mutation in the cystic fibrosis transmembrane conductance regulator (CTFR) gene, which encodes a chloride ion channel that regulates osmotic balance across the epithelium through the transport of sodium ions and water4. Mutations

Cystic Fibrosis is a life threatening condition that causes severe damage to the lungs and digestive system. Developing this condition can change a person's entire life. Depending on the severity of the condition a person can be affected by mild symptoms such as shortness of breath, all the way to severe symptoms such as rectal prolapse, or even death. Screening is done on infants in all 50 states; therefore if a child has inherited Cystic Fibrosis it will be known in the first months of life. As professional staff members of a nursing community it will be necessary to help prepare the child and the family for the life of Cystic Fibrosis.

Cystic Fibrosis is a genetic disease which is progressive and limits breathing ability. The lungs and other organs are affected by a thick buildup of mucus. This mucus traps bacteria which leads lung damage, infections, and respiratory failure. The digestive enzymes being released is prevented, affecting the breakdown of food and nutrients being absorbed. ?More than 30,000 children and adults in the United States have Cystic Fibrosis. 70,000 people worldwide.? (Diagnosed With Cystic Fibrosis, Cystic Fibrosis Foundation) Someone who has Cystic Fibrosis have a defective gene from each parent which produces faulty protein. The CFTR gene is the gene that is mutated causing this. The channel that transports chloride in and out of cells is created by instructions that are created by CFTR gene. The regulation of chloride ions and water are prevented creating the thick mucus formed on the passageways of lungs, pancreas, and other organs. Cystic Fibrosis doesn?t cause learning problems are mobility of the person. Babies with this still develop and grow up normally. The average life expectancy is close to 40 years, and has been increasing in the last fifty years thanks to improved care. ?Chronic coughing, recurring chest colds, wheezing, shortness of breath, frequent sinus infections, and allergies that last all year, are the most common symptoms of Cystic Fibrosis.? (Cystic Fibrosis Symptoms) Since this disease is progressive

What is Cystic Fibrosis? How does it affect people living with it? Cystic Fibrosis, also known as CF, is a life-threatening hereditary disease. It is inherited by a faulty cystic fibrosis transmembrane conductor (CFTR) gene from each parent (Kowalczyk, 2014, p. 74). This faulty gene makes a defective protein that does not work well and causes the body to produce sticky, thick mucus and very salty sweat("About CF: Causes, Signs & Symptoms of Cystic Fibrosis,"

Cystic Fibrosis affects 1 in every 2,500 children at birth. (ncbi.nlm.nih.gov) Cystic Fibrosis, or CF, is a genetic disorder. A genetic disorder is inherited, and is contributed to by both parents. (lung.org) Each parent has one abnormal gene. (lung.org) Cystic Fibrosis is where the body can not make, or it makes an abnormal version of the CFTR protein. CFTR is also known as cystic fibrosis transmembrane regulator. There are several symptoms, and causes of Cystic Fibrosis. These symptoms are diagnosed, according to what causes CF. Cystic Fibrosis is an inherited disease, that when after diagnosed, doctors will suggest treatments to help with the condition. Cystic Fibrosis is most common in white infants, but can

Every day, people die from Cystic Fibrosis. That is why Cystic Fibrosis is known as the most deadly inherited disease. There is no real cure of CF but, right now there are many ways to ease your symptoms and help you manage the condition. “Every day, people with CF complete a combination of the following therapies Airway clearance, Inhaled medicines, Pancreatic enzyme supplement and sometime oxygen therapy depending on how severe your condition is”(McLoud). Since there is so many new advancements in treatment, people who have CF now live twice as long as they did 30 years ago.

​Cystic fibrosis is an inherited, chronic disease of the secretory glands which directly affects the lungs and digestive system (NLM, 2015). To look more closely at a cellular level, there is a defective gene in which their protein product that regulates movement of sodium

Cystic fibrosis is a genetic disorder caused by mutations of the cystic fibrosis transmembrane conductance regulator protein, which results in a defective chloride channels. Chloride is part of salt that helps transportation of water needed for thin, free flowing mucus. The main characterization of cystic fibrosis is thick, sticky mucus in the lungs, making breathing difficult and allowing pathogens to invade (Ratjen and Döring 2003). Airway mucus creates an iron limiting environment to prevent bacterial growth. However, Pseudomonas aeruginosa is a bacteria able to resist this airway mucus. This proposes a question as to why people with cystic fibrosis are prone to infection when exposed to the same pathogen as any healthy individuals. Research has suggested defective mucus clearance and biofilm formation could contribute to prolonged Pseudomonas aeruginosa infection in people with cystic fibrosis (Gi et al. 2015). Also, targeting cystic fibrosis transmembrane conductance regulator proteins to allow chloride transportation has been proven to decrease mucus volume and Pseudomonas aeruginosa infected tissue (Rowe et al. 2014). The above information suggests increased mucus volume causes prolonged infection in the lungs of cystic fibrosis patients. This paper will describe cystic fibrosis and will focus on the unanswered question as to why cystic fibrosis patients experience chronic infection in their lungs.

Children are usually diagnosed with Cystic Fibrosis at an early age of just 2. Children will start to show early signs of the disease. They will start to feel pain in the lower abdomen and start having extreme episodes of nausea. Cystic Fibrosis is a deadly disease because of all the mucus that is being built up in the lungs. The life expectancy for someone with this disease is usually 37; the number has risen over the past few years with new technology and medicines coming to light. Since the disease has no cure, it takes a huge toll on home life and the family finances because of the advanced treatment planes. Cystic fibrosis is a defective gene disorder,

Cystic fibrosis (CF) is a progressive condition in which epithelial exocrine glands are obstructed (Howe, 2001). Whilst many organs and bodily systems are disrupted by CF, the lungs and gastrointestinal organs are predominantly affected; it is also most common amongst the Caucasian population due to the autosomal recessive gene (Quitter et al., 2003 cited in Wolfe & Mash, 2006, pg 514). The faulty gene effects the production of cystic fibrosis transmembrane conductance regulator protein, which is responsible for the formation of molecular tunnels which monitor the movement of salts and water from the cells (Hopkin, 2010 pg 4).

The cause of Cystic Fibrosis is mutations in a single gene on chromosome 7 that encodes for the cystic fibrosis transmembrane regulator , CFTR. The mutated CFTR gene in Cystic Fibrosis patients causes a defective chloride ion pathway. Typically, a functioning chloride transport allows chloride, which produces mucus, to exit the cells. Also, a chloride transport helps

Cystic Fibrosis (CF) is an autosomal recessive gene that causes a wide range of symptoms because there are over 1,000 changes or mutations that can occur within the cystic fibrosis transmembrane receptor (CFTR) protein. The CFTR protein is generally a chloride ion chain “regulated by cyclic adenosine monophosphate and therefore can act as a regulator of other electrolyte channels”(Grossman, S., & Grossman, L. 2005, p. 46). Typically this protein allows chloride ions to exit mucus-producing cells allowing water to flow in and thin the mucus. However, if the CFTR protein has been mutated, such as in cystic fibrosis, chloride ions cannot exit. This causes the mucus to thicken, become sticky, and obstruct the various channels it passes through. This build up of mucus also prevents bacteria from being cleaned from cells thoroughly increasing the patients risk for infections (Grossman, S., & Grossman, L. 2005). However, the severity of CF depends on whether the patients have complete or partial loss of the CFTR gene. If the person has the classic form of CF abnormalities of CFTR will commonly affect “…the respiratory, gastrointestinal, endocrine and metabolic, and genitourinary systems”(Schram, C. 2012). However, if people have atypical forms of CF their genetic disorder may only affect one of the organ systems and may not be found until the patient develops symptoms in their late childhood, early adolescence, or adulthood

Cystic Fibrosis is caused by a genetic defect in Chromosome 7. Chromosome 7 encodes the cystic fibrosis transmembrane conductance regulator, also known as CFTR. There are over 1,000 mutations of this gene causing cystic fibrosis, with each mutation manifesting as a different variation of disease onset and clinical presentation. The most common mutation is the loss of phenylalanine residue at deltaF508. The abnormal functioning CFTR causes impaired chloride transport and more viscous secretions. The defect causes dehydrated secretions in the respiratory tract and gastrointestinal tract. Being dehydrated, these secretions become more difficult to move throughout the body. Along with impaired