Cystic Fibrosis :: essays research papers

Cystic FibrosisShelby Parker sits in the lotus position in the nerve centre of a hospital bed, her slender arms resting on the pillow in her lap. Cystic fibrosis is catching up with her. At 23 old age old Shelby stands at five foot two inches and weighs seventy pounds. She seems impossibly thin, her limbs are so frail its a wonder she can lift a glass of water. undecomposed a year ago, Shelby was a fulltime college student, but now she spends day and night connected to an oxygen tank. A hose runs into her nose, another pumps intravenous antibiotics into her arm. An infection to the highest degree killed her in January, and nothing short of a lung transplant will save her.A tiny doe-eyed women with a childs voice, Shelby is in a flavor and death test down with her disease. Her lungs, scarred by repeated infections, are failing. Ten years ago, death would have loomed certain. Today there is hope. Just a few miles from where Shelby waits, doctors at the University of North Carolina are leading a national effort to cure cystic fibrosis by repairing the faulty gene that causes the disease. But that prospect is still real far off.For Shelby, the only real hope lies in the hands her doctors who have the power to remove her weak, scarred lungs and replace them with a healthy set.Cystic Fibrosis is a disease caused by an inherited genetic defect. It is not contagious, yet about one in twenty-three people in the United States carry at least one defective gene. This statistic makes cystic fibrosis the most common genetic defect of its severity in the country.For many, cystic fibrosis used to be known as a childhood disease, and to some it still is. Just thirty years ago, the median survival age was only eight, but thanks to medical advances, life expectancy is now just under forty for cystic fibrosis patients. Today there are an alarming number of adults with this disease who face an added set of problems such(prenominal) as finding health insurance, going to colleg e, getting a job, and building permanent relationships- all while keeping up physical therapy and medications.For many years the causes of cystic fibrosis were a mystery, but recent advances in biology have made the reasons much more clear. Humans have a gene encoded in their DNA, which manufactures a special protein called CFTR. This protein controls the flow of chloride ions across the cell membrane.