UH Study: Condition Linked To Diabetes May Lower The Odds Of Alzheimer’s
The study of elderly Japanese-Americans found that insulin resistance may actually have some benefits for older people.
A new study by the University of Hawaii at Manoa has found something intriguing: A condition widely thought to be an early signal for diabetes may actually be linked to lower odds of developing Alzheimer’s disease among the elderly.
Insulin resistance, when cells stop responding to signals from the hormone insulin, eventually leads to Type 2 diabetes.
But a UH study published in the illustrates how insulin resistance for a shorter time period later in life could actually be beneficial, says lead author Thomas Lee, an assistant professor of epidemiology with the UH Office of Public Health Studies.
The study, titled, “,” analyzed health records of the 1,544 Japanese men ages 70-90 who participated in the . It found that the men who had insulin resistance had lower odds of developing Alzheimer’s and dementia compared to the men who did not have insulin resistance.
“That鈥檚 really eye-catching,” said Lee. 鈥淓veryone thinks that insulin resistance is bad, and if you have it, you鈥檙e at greater risk for other negative health outcomes. But other studies show when they injected insulin that actually improved memory and cognitive ability and that supported what I found.”
Lee said that the findings are not meant to lead people to think insulin resistance is a good thing, as it is a serious condition. But while there is no potential positive spin for pre-diabetic indicators found in middle-aged people, the study indicates that could be different for older people, he said.
“We need to be aware that as we age, so does our body, and so does our body鈥檚 response to disease,” he said. “Researchers are still touching the tip of the iceberg when it comes to understanding the brain and exact mechanisms of Alzheimer鈥檚 and dementia.”
Approximately 29,000 people in Hawaii are living with Alzheimer’s disease, according to the Hawaii chapter of the Alzheimer’s Association.
Because the Kuakini study focused solely on Japanese males, Lee hopes it will prompt further examinations among other populations.
“There鈥檚 still no gold standard in terms of connecting insulin resistance in terms of our pancreas, liver and the brain,” he said. “Until we have studies that test this hypothesis in other populations, it just prompts further questions and further studies.”
