by Kevin Chappell
Nearly 21 million people in the United States, or 7 percent of the population, have diabetes. And another 54 million people are believed to have the beginning stages of diabetes.
Every minute of every day, another American develops type 2 diabetes. Among African-Americans, the numbers are even more daunting. One in 7 Blacks has the disease, and African-Americans are twice as likely as Whites to develop diabetes.
At the rate that diabetes is progressing, it is predicted that for every two African-American children born today, one will develop diabetes--type 2 diabetes, which used to be called "adult onset diabetes."
But with more Black children than ever before being diagnosed with diabetes, medical professionals are rethinking their entire approach to the disease--and raising the question: Has diabetes become an epidemic in Black America?
"We're seeing shortening of life spans, people are dying earlier from heart disease, strokes," says Dr. Duane Smoot, chair of the medical department at the Howard University Hospital.
"There are just so many problems associated with diabetes. It causes aging of your blood vessels, so hardening of the arteries occurs more frequently. It causes people to have more problems with aging. We talk about aging gracefully, but with this disease, it makes it more difficult to have a good quality of life.
We have very firm data that tells us that diabetes itself had reached epidemic proportions in this nation as a whole, but more specifically in the African-American community."
Dr. Wayman Wendell Cheatham, medical director at the Medstar Research Institute in Washington, D.C., agrees. "We should be very, very concerned. I am terribly concerned," Cheatham says.
"Diabetes is a major killer. It doesn't only cause people to lose their vision, lose their kidneys, lose their limbs, diabetes reduces life expectancy significantly. People die of heart attacks and strokes because diabetes. It is one of the more underlisted causes of death of all causes ... With the trend line that we're on, it's a terrible epidemic."
Dr. James Gavin, past president of the American Diabetes Association, defines an epidemic as a disease that spreads "beyond a local population, lasting a long time and reaching people in a wider geographical area," he says. "Many classify diseases as a pandemic once the disease reaches worldwide proportions."
So what caused this explosion of diabetes in the Black community?
Gavin and others believe that genetics have played a large role. However, given that the population gene pool shifts very slowly overtime, the current epidemic of diabetes can't solely be attributed to genes.
Many health professionals are attributing a large part of the problem to the drastic slowing of active lifestyles, and the drastic shift in diet to one that now consists largely of processed foods.
The result: Black children and adults, particularly females, are more overweight now than ever before. One study on physical activity found that, by the age of 18, Black girls have a decline in physical activity twice that of White girls the same age.
"Obesity and diabetes go hand in hand," says Dr. Joyce Richey, diabetes researcher and assistant professor at the Keck School of Medicine at University of Southern California.
"The obesity issue is the trigger, and we have a genetic background that sets off that trigger. The result is a diabetes epidemic ... When you become obese, you become less responsive to the insulin that your body is putting out. Then your body realizes that you are becoming resistant, and starts putting out more insulin. Diabetes occurs when your beta cells become so impaired that you are not able to compensate for that resistance that you have."
Richey and other researchers are working feverishly to unravel the mystery of fat, particularly what is it about fat, or in fat, that triggers diabetes. "What we are finding out is that we've always thought of fat as being dormant, taking up space for sure, but not much else," she says.
"But what we are finding out [now] is that fat is like an organ that is secreting things into our system. Fat is not good, especially belly fat. That's the fat that is very unhealthy."
Richey says eating healthy and increasing physical activity are keys to stemming the diabetes epidemic. Catching the disease in its earliest stage is also key. When the disease is in its "pre-diabetes" stage, actions can be taken to prolong, if not prevent, its onset.
A landmark study sponsored by the National Institutes of Health indicated that people with pre-diabetes lowered their risk of developing type 2 diabetes by more than half by losing 5 to 7 percent of their body weight, getting at least 30 minutes of physical activity five days a week and eating healthier.
In addition to lifestyle changes, researchers are also developing new classes of drugs that decrease the rate of developing diabetes if taken early in the disease's progression. Other drugs restore the ability of the pancreas to make insulin more normally and release it more normally.
But presently, nothing can replace the self-determination of a person to keep his or her diabetes in check. Just ask Regina Barrett. The Washington, D.C., native has battled diabetes for five years. And so far, she's winning the fight.
"The changes that I have made are lifestyle changes," says the 51-year-old. "They are not temporary. They are things that, if I want to continue to feel good, if I want to do the best that I can, I have to do. I want to know that I have done all that I possibly can to fight the disease. Right now, I feel healthy, even having diabetes."
DIABETES By The Numbers
*DEATHS: Diabetes was the sixth leading cause of death listed on U.S. death certificates in 2002. This ranking is based on the 73,249 death certificates in which diabetes was listed as the underlying cause of death. According to death certificate reports, diabetes contributed to a total of 224,092 deaths. Diabetes is likely to be underreported as a cause of death. Studies have found that only about 35 percent to 40 percent of decedents with diabetes had it listed anywhere on the death certificate and only about 10 percent to 15 percent had it listed as the underlying cause of death. Overall, the death rate among people with diabetes is about twice that of people without diabetes of similar age.
*HEART DISEASE AND STROKE: Heart disease and stroke account for about 65 percent of deaths in people with diabetes. Adults with diabetes have heart disease death rates about 2 to 4 times higher than adults without diabetes. The risk for stroke is 2 to 4 times higher among people with diabetes.
*HIGH BLOOD PRESSURE: About 73 percent of adults with diabetes have blood pressure greater than or equal to 130/80 millimeters of mercury (mm Hg) or use prescription medications for hypertension.
*BLINDNESS: Diabetes is the leading cause of new cases of blindness among adults aged 20 to 74 years. Diabetic retinopathy causes 12,000 to 24,000 new cases of blindness each year.
*KIDNEY DISEASE: Diabetes is the leading cause of kidney failure, accounting for 44 percent of new cases in 2002. In 2002, 44,400 people with diabetes began treatment for end-stage kidney disease. In 2002, a total of 153,730 people with end-stage kidney disease due to diabetes were living on chronic dialysis or with a kidney transplant.
*NERVOUS SYSTEM DISEASE: About 60 percent to 70 percent of people with diabetes have mild to severe forms of nervous system damage. The results of such damage include impaired sensation or pain in the feet or hands, slowed digestion of food in the stomach, carpal tunnel syndrome, and other nerve problems. Almost 30 percent of people with diabetes aged 40 years or older have impaired sensation in the feet (i.e., at least one area that lacks feeling). Severe forms of diabetic nerve disease are a major contributing cause of lower-extremity amputations.
*AMPUTATIONS: More than 60 percent of non-traumatic lower-limb amputations occur in people with diabetes. In 2002, about 82,000 non-traumatic lower-limb amputations were performed in people with diabetes.
*ESTIMATED COSTS OF DIABETES IN THE UNITED STATES: $132 billion, with $92 billion in direct medical costs and $40 billion in indirect costs (disability, work loss, premature mortality).
*TYPE 1 AND TYPE 2 DIABETES: Type 1 diabetes (also known as juvenile-onset diabetes) accounts for 5 percent to 10 percent of all people with diabetes. Type 2 diabetes accounts for the majority of people with diabetes--90 percent to 95 percent.
How DIABETES Is Ravaging The African-American Community
*Thirteen percent (3.2 million) of all African-Americans aged 20 years or older have diabetes.
*Twenty-five percent of African-Americans between the ages of 65 and 74 have diabetes.
*African-Americans are 1.8 times more likely than Whites to have diabetes.
*One in 4 African-American women over 55 years of age has diabetes.
*African-Americans are almost twice as likely as Whites to develop diabetic retinopathy (blindness).
*African-Americans are as much as 5.6 times more likely than Whites to suffer from kidney disease as a result of diabetes complications.
*African-Americans are 2.7 times more likely than Whites to suffer from lower-limb amputations.
Source: American Diabetes Association
