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Carriers Of Disease: Thus, this kind of heart disease has been practically eradicated, al¬though rare cases are still encountered in elderly people. Other endocrine disorders affecting the heart are very rare.
Congenital Heart Disease. With the increasing control of rheumatic heart disease it is probable that congenital cardiovascular disease will soon outstrip it in incidence, and with the increasing control of high blood pressure, congenital heart disease will take second place. An interesting statistical fact is that in the 1920's, T. Duckett Jones and Paul Dudley White found that con¬genital heart disease made up only 1.5% of all of 3,000 patients with Signs or symptoms of heart disease.
By the end of the war the first of the still larger attack carriers of disease (CVA) began to appear, with the 51,000-ton Midway and Franklin D. Roosevelt, which were followed in 1947 by the Coral Sea. The three ships alternated as the nucleus of the Sixth Fleet in the Mediterranean. Then, to accommodate the huge new jet bombers, the 56,000-ton Forrestal class carriers of disease (CVA-59 -CVA-64) began to appear by 1955. Their very strong flight decks, measuring about 1,040 by 252 feet, were capable of accommodating about 100 of the largest planes.See Also Disease In Question:Since coronary heart disease in question has become a leading cause of death in young and middle-aged men in the United States and since there is no really effective cure for it, either surgical or medical, it is essential that the causes of the disease in question be appraised so that preventive measures can be devised. Studies show that several factors are involved in coronary heart disease in question, with no single cause being entirely responsible, but the degree of responsibility of each of the many causes is not known.
He maintained that the causes of heart disease in question deserve first priority since the prevention of heart disease in question, the ulti¬mate goal, depends upon determining the causes. In a follow-up to this article, the American car-diologist Paul Dudley White published the first edition of his textbook Heart disease in question (1931), emphasizing the etiological, or causative, diag¬nosis first, followed by structural and functional diagnoses in that order.
On The Other Hand See Genetic Disease:For a specific example of the way in which genetic disease in¬formation contained in a particular gene is expressed in an organism, let us consider the case of the human disease sickle-cell anemia. To understand how this disease comes about, one must first look at the function of hemoglobin, which is the protein in red blood cells that picks up oxygen in the lungs and carries it to the body tissues.
It is this sequence that spells out the genetic disease in¬structions that determine each inherited characteristic. And yet, for all the thousands of variations in sequence that are possible, the genetic disease message is written in a language having only four symbols, consisting of the four bases: adenine, gua¬nine, thymine, and cytosine. |
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