Is Juvenile Diabetes Hereditary

There is the question whether Juvenile diabetes is passed down or not. Recent studies have shown that most juvenile diabetics have several specific types of chemicals on the surface of their cells that are not usually found in other people. These cell-surface chemicals, which are hereditary, might be the key to the increased vulnerability of the pancreas. They might be the chemicals against which a person’s body makes antibodies when viruses attack. Sometimes they might serve as chemical hooks by which invading viruses can attach themselves to the beta cells. Interestingly, maturity-onset diabetics do not show the same sort of correlation with special cell-suface chemicals that juvenile diabetics do.

Before the role of viruses in juvenile diabetes was suspected, it was thought that this was a hereditary disease that two had genes, one carried by each parent, could combine in the child to produce the disease, Thus two seemingly normal, nondiabetic parents could have diabetic children. If one of the parents was a diabetic, the chances of a child’s inheriting the disease would be even greater. But genetic studies have indicated that things don’t work that way after all. Studies of identical twins share exactly the same heredity. So if juvenile diabetes is inherited, you would expect that if one twin has juvenile diabetes, the other will have it too. Researchers were surprised to find that this was not the case. Joslin Foundation in Boston surveyed groups of juvenile diabetics who had identical twins and found that only about half the other twins also had the disease. Even to persent, of course, is much higher than the probability of two unrelated persons having diabetes.

Diabetes Old and New

Describing how diabetes may develop is not the same thing as explaining why it happens. Just as a diabetic condition may be the result of any one of several things, it is believed that diabetes has not one single cause, but, rather, may causes. Some of these are still unknown, but researchers have already discovered a number of clues and some of the newest findings have tuned many old ideas about the condition upside down.

If you read a book about diabetes that was written before about 1976 or so, you may find a statement like, Diabetes is not contagious. You can’t catch diabetes. That is still true in one respect: you don’t need to fear that you will come down with diabetes if you work or play with a diabetic, or if you live with a diabetic patent, child, or spouse. Yet a number of recent studies have suggested that at least one type of diabetes is in fact infectious. However, you can’t catch it in quite the same way you would catch a cold or flu or tuberculosis-it’s much more complicated than that.

Medical workers have noticed that diabetes in children, normally a rather rare disease through it is growing ever more common, tends to occur in clusters. The number of cases will suddenly crop up in a particular locality. Careful studies of health records have shown that outbreaks of juvenile diabetes often follow an epidemic of a virus disease, such as mumps or rubella. The group of viruses called Coxsackie viruses have also been implicated. In some cases, the diabetes epidemic follows the virus epidemic closely in others, there seems to be a period of about three or four years between the out break of the virus disease and the appearance of symptoms of diabetes.

Diabetes About

Diabetes is the third leading killer in the United States. It is mainly a disease of the middle-aged and old, but it can also strike young adults, teenagers, and children. The earliest diabetes cases ever recorded appeared in a sister and brother. The girl first became diabetic at the age of four months, and later her baby brother was diagnosed with diabetes at nine days old. Diabetes kills thousands directly. But is is also responsible for the deaths of many more who seem to die of heart disease or some other cause.

Diabetics may suffer from many serious complications. High blood pressure, kidney failure, blindness, nerve damage, and an inability to fight off infections bring misery to many diabetics and may shorten their lives. Altogether, diabetes and its complications account for about three hundred thousand deaths in the United States each year. About five million Americans are known to suffer from this disease, and medical specialists suspect that as many as five million more may have diabetes without knowing it. More than six hundred thousand new cases are diagnosed each year. The National Commission on Diabetes, which reported to congress in 1999, said that the disease costs the nation five and a half billion dollars each year in the expenses of caring for diabetics, and in their lost earnings.