Native Americans and Diabetes
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University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Nebraska Anthropologist Anthropology, Department of 1997 Native Americans and Diabetes Kristina K. Lee Follow this and additional works at: https://digitalcommons.unl.edu/nebanthro Part of the Anthropology Commons Lee, Kristina K., "Native Americans and Diabetes" (1997). Nebraska Anthropologist. 108. https://digitalcommons.unl.edu/nebanthro/108 This Article is brought to you for free and open access by the Anthropology, Department of at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Nebraska Anthropologist by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. Native Americans and Diabetes Kristina K. Lee Type II diabetes has reached Almost all Native Americans with epidemic proportions among Native diabetes have Type" diabetes. Americans. It Is estimated that 12.2 There are many warning signs of percent of all Native Americans in the Type " diabetes. These physical U.S. have Type II diabetes. This ailments include: compares with 5.2 percent of the general U.S. population (Diabetes • fatigue Statistics 1997). The highest rate of • initability diabetes in the world is in the Pima • increased thirst or hunger • extreme weight loss Nation. Half of all Pima Indians age 35 • blurred vision and older have diabetes (West 1974). • increased urination Diabetes causes severe health • sore gums complications and is a major cause of • sores that do not heal or are slow to death for Native Americans. heal • frequent infections (skin, gum, bladder) What is Diabetes? • numbness in the hands or feet Diabetes is a chronic disease in (Diabetes and American Indians 1997; which the body does not produce insulin The Dangerous Toll 1997) or properly use insulin. There is no cure. Insulin is a hormone that is needed by One of the most significant the body to convert sugar, starches, and problems associated with diabetes is other food into energy needed for daily that over half of the people with the life. There are two main types of disease, do not know they have it Many diabetes, Insulin Dependent (100M) and people learn they have the disease only Non-Insulin Dependent Mellitus after they develop serious diabetes (NIDDM). Between 80 and 90 percent of related complications. Late diagnosis people with diabetes have Type 11 and increases the risk for more serious this will be the focus of this paper. health problems. Four of the most Non-Insulin dependent diabetes common life-threatening complications mellitus is also known as Type II of diabetes are: blindness (retinopathy), diabetes. It is charaderized by elevated kidney disease (nephropathy) and plasma glucose and plasma cholesterol ultimately, kidney failure, amputations of in blood and urine This is the more digits and limbs, heart disease, and common type of diabetes. Type " strokes. Heart disease is 2 to 4 times diabetes is a metabolic disorder in which more common in people with diabetes. the body produces insulin, but cannot The disease may cause damage to the use it efficiently or does not produce nervous system (neuropathy) and the enough. NIDDM affects carbohydrate, blood vessels (cerebrovascular). fat and protein metabolism, and Between 60 and 65 percent of diabetics insufficient insulin secretion or insulin develop high blood pressure resistance. Type " diabetes (hypertension). This increases the risk disproportionately affects minority of strokes with diabetics having a 2.5 populations and the prevalence of higher risk than a non-diabetic diabetes among minorities is increasing. (Diabetes Statistics 1997). 108 Research has indicated three diabetes among African Americans is primary fadors for the prevalence of comparable to the Hispanic population diabetes among Native Americans. (Diabetes Among Hispanics 1997). These factors are genetic For African Americans, it is predisposition, diet and obeSity, and estimated that over 2 million have phYSical activity level. Stress has also diabetes. They are 1.6 times more likely been indicated as a possible factor, but to have diabetes than the general U.S. very little research or documentation population. Almost 6 percent of African relates it to diabetes (Urdaneta 1989). American men have diabetes and The interrelationship between these almost 8 percent of African American fadors appears to cause Native women have diabetes. They often Americans to be more susceptible to experience higher rates of serious diabetes. Other factors that may complications such as blindness, increase the prevalence of diabetes amputation, and kidney failure (Diabetes include: high blood sugar during Among African Americans 1997). pregnancy, women with high birth . The average prevalence of weight babies (over 9 pounds at birth), diabetes among Native Americans is and ethnic background. more than twice as high as the general The following chart presents the U.S. population (West 1974, 1978a,b). percent of adults with diabetes in Overall prevalence of Type II diabetes various ethnic groups. These among Native Americans is 12.2 percentages, prepared by Diabetes percent as compared to 5.2 percent of Statistics, not only include figures of the general U.S. population (Diabetes diabetes patients, but also estimates of ·Statistics 1997). In less than thirty years, those individuals that are undiagnosed diabetes went from being unranked in the ethnic populations. The (1951) as a leading cause of death for percentages of adults (diagnosed and Native Americans to becoming the undiagnosed) with diabetes can be seventh leading cause of death by 1980 divided by ethnicity as follows: (Campbell 1996). Diabetes is the second most common diagnosis for African Americans 9.6 percent Native Americans admitted to the Mexican Americans 9.6 percent hospital (West 1974). If current rates Cuban Americans 9.1 percent continue, Type II diabetes will eventually Puerto Rican Americans 10.9 percent affect one-half of all Native American White Americans 5.2 percent adults. For the U.S. population as a Native Americans 5 to 50 percent whole, less than 10 percent of people (Diabetes Statistics 1997) age 45 or older have diagnosed or For Hispanics in the U.S., one in undiagnosed Type II diabetes (Harris every ten adults has diabetes. For 1985). For many Native American Cuban American and Mexican American nations, this figure jumps to 25 percent populations, almost· 10 percent have or more. For Pima adults age 35 or diabetes. For Mexican Americans and older, the rate is an astounding 50 Puerto Ricans ages 45-74, percent (Sievers and Fisher 1985). approximately 25 percent have These figures are staggering when diabetes, and in this same age group, recognizing that diabetes was rare in all 16 percent of Cuban Americans have Native American nations prior to 1940. diabetes. Hispanic women with diabetes The percentage of Native have a greater risk of death and American adults with diabetes, both complications during pregnancy than the diagnosed and undiagnosed, ranges U.S. average. The prevalence of from 5 to 50 percent Prevalence rates vary among different Native American 109 nations (see Weiss 1984, Appendix 1). Environmental change occurred as food At this point in diabetes research, it resources become increasingly dense seems that diabetes is not uniformly and available. Since the environment distributed across all Native American today, does not match the past groups. The extent of acculturation may environment, Native Americans have play a role in this pattern and needs to developed problems with adaptations. be researched further. Many nations of These environmental changes in such the southwest (Pima, Navajo, Tohono aspects as diet and activity level O'odham) have extremely high occurred rapidly in many Native prevalence rates and, as with the Pima, American communities. Most of these have been researched for many years. changes were imposed on them by a Unfortunately, few other nations have dominant outside culture. been examined for incidence of diabetes and significant cross-cultural data is not Genetic Explanations available. Another important factor to and the Thrifty Gene consider with the wide range of diabetes Many researchers think that prevalence is that almost half of those diabetes in Native Americans is a with diabetes are still undiagnosed with problem in human adaptation and the disease. genetics is strongly linked. One of the Diabetes has become a growing possible explanations of this health problem among Native evolutionary adaptation was developed Americans since the 1940s (West by Neel (1962,1982). In 1962, Neel was 1974). There is little documentation of the first to argue that diabetes was a diabetes prior to this time period. genetic adaptation that dealt with According to reports, diabetes was rare changes in lifestyle. His theory was in the first part of the twentieth century called the "thrifty genotype" hypothesis. (Hrdlicka 1908; Sievers 1981). By the People with a thrifty gene were better 195Os, diabetes was found in many able to store food as -fat during feast nations. By the 1970s, it was found in periods. The thrifty genotype hypothesis epidemic proportions in many nations, involves quick insulin discharge after a West (1974) discovered that within a meal, which granted a survival short period of time, diabetes had advantage during times of food spread throughout the Native American shortages. Evidence for seasonal stress populations. is widespread among hunters and One possible way to examine or gatherers in various