Life Threating Disease: Cystic Fibrosis

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

This is due to the lack of the vas deferens, which is the tube that sends the sperms out of the testes to the penis. In woman they can have children they just have more problems with conceiving due to the excessive amounts of mucous in the sexual organs.

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 that is programmed in the victim’s DNA. It is passed on from parents who are both carriers of the defective gene. This genetic disorder affects the respiratory and digestive systems. People who suffer from cystic fibrosis usually inherit a defective gene on chromosome 7 called CFTR (cystic fibrosis transmembrane conductance regulator). Below is a diagram showing how cystic fibrosis is passed on from carrier parents to a child. The diagram shows that when a child is born by two parents who are both carriers of the CFTR defective gene, there is a one in four chance of being born with cystic fibrosis, there is a 2 in 4 chance of being a carrier or a 1 in

Cystic Fibrosis cannot be developed or contracted it is something you’re born with. CF is a recessive disease, it occurs when a child inherits one defective copy of the gene from each parent. This gene mutation is responsible for cystic fibrosis. ("Cystic fibrosis Canada," 2011) This gene is known as the CFTR gene ("www.medincinet.com," 1996). Reference Figure 3. The “gene makes a protein that controls the movement of salt and water in and out of your body's cells. In people who have cystic fibrosis, the gene makes a protein that doesn't work right. This causes the thick, sticky mucus” ("www.medincinet.com," 1996).

CF occurs through the inheritance of a loss-of-function mutation in the gene that encodes for the CF transmembrane conductance regulator (CFTR) membrane protein (2). This protein is a transporter responsible for actively transporting chloride ions and sodium ions, which in turn regulate osmotic balance (2). Mutations in CFTR affect the water-driving force in the epithelial surfaces lining the gastrointestinal tract and pancreas (2). This results in viscous and sticky mucus secretions which build on the epithelial surfaces (2). This environment causes patients with CF to be susceptible to

Cystic Fibrosis is caused by a mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) which is located in the middle of chromosome 7. The CFTR gene encodes a protein of the same name. This protein functions as a “channel across the membrane of cells that produce mucus, sweat, saliva, tears and digestive enzymes” (Genetics Home Reference, 2015). The channel transports chloride ions which are negatively charged particles, in and out of cells which help in controlling the water movement in tissues to allow for the production of thin, feely flowing mucus, a substance that lubricates and lines the airways, digestive system, reproductive system and other tissues and

According to Grossman (2005), Cystic Fibrosis also Known as “CF”, is a genetic or an inherited disorder develop due to a defect of cell protein function. An individual can inherit Cystic Fibrosis only when both parents meaning both the person’s father and mother are carriers of this dysfunctional gene. The abnormal cell protein that causes Cystic Fibrosis is known as CFTR or cystic fibrosis transmembrane regulator. This particular type of cell protein helps maintain a balanced movement of certain form of salt and water in the body’s cell. In Cystic Fibrosis, this movement of salt and water in and out of the body cells become impaired leading to a thickened mucus. The Cystic Fibrosis Foundation point out on his website that both boys and

Cystic fibrosis (CF), is an autosomal recessive disorder [figure 1.], caused by a mutation in two genes on chromosome 7 – the genes responsible for the way water and salts pass in and out of the cells in the body. CF affects the secretion and reabsorption of chloride ions, producing a much thicker than normal layer of mucus (in the lungs, pancreas and liver primarily) that is ideal for bacteria and infection to flourish. The faulty gene may fail to produce the cystic fibrosis transmembrane conductance regulator (CFTR) protein or may produce the protein however this protein is faulty is such a way that it does not regulate chloride secretion and reabsorption properly or at all. Currently there are a wide array of

Cystic fibrosis is an autosomal recessive genetic disorder characterised by a mutation in the cystic fibrosis transmembrane conductance regulator (CFTR) protein which acts as a chlorine channel that regulates water and ion levels across the epithelia. Cystic fibrosis can affect sweat glands, the respiratory system, digestive system and the reproductive system. In the lungs defects in the CFTR protein results in airway surface liquid depletion, triggering a cascade of events resulting in infection and inflammation [1]. This essay will discuss the molecular mechanisms involved in cystic fibrosis and outline the symptoms and possible treatment available and being developed.

Cystic fibrosis is a disorder affecting approximately 30,000 U.S. citizens. Although this genetic disorder can affect anyone, whites tend to be at a greater risk of developing this disease. Also males and females seem to have an equal risk of developing cystic fibrosis (Gardner, 2007). Cystic fibrosis is passed onto offspring by a recessive mode of inheritance. After extensive analysis it is believed that there is a single cystic fibrosis locus located on human chromosome seven. Considering a multitude of data and factors such as tissue specificity and the predicted properties of the Cystic Fibrosis Transmembrane Conductance Regulator(CFTR) protein, it is theorized that CFTR is the direct cause of cystic

Cystic fibrosis causes mucus to become extremely thick and sticky. The disease found in the lungs, pancreas, liver, intestines, and more but mostly affects the lungs. The disease is a recessive trait that is passed down through generations of caucasians, but is not contagious. The protein that is affected is CFTR (or cystic fibrosis transmembrane conductance regulator) which controls the flow of salts and fluids in and out of cells. The chromosome that is affected is chromosome 7. Even if one of the parents does not have the disease they could be a carrier and pass on the gene to their child. Usually, people with this disease have germs that are not affected by

Cystic Fibrosis is a medical condition in which a thick and sticky mucus progressively covers organs, causing them to malfunction. This disease is commonly known for affecting the lungs and bronchi, however there are many more risks the disease brings to organs. Not only does Cystic Fibrosis bring risk to organs, it runs risks to all people. Everyone carries two CFTS genes, however the genetic disease only occurs hereditarily in offspring of two carriers holding damaged CFTS genes. Cystic fibrosis brings a fragile lifestyle to its carriers, and to the tissue and organs of carries. Scientists are trying to find good in the commonly known as “Bad” gene. However, it takes genetic break down to understand the good and bad points of Cystic fibrosis.

The protein of the cystic fibrosis gene is called the Cystic Fibrosis Transmembrane Conductance Regulator (CFTR). The gene is located on 7q31.2 long arm of chromosome 7 at position 31.2. The CF gene also has 27 exons and is made up of 250,000 DNA nucleotides. CFTR moves chloride ions out of cells which is very important for salt and water balances on the epithelial cells.

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