Hypertension, Depression May Signal Increased Alzheimer’s Risk
Nearly a quarter of individuals diagnosed with Alzheimer’s disease experienced a sequence of high blood pressure and depression before receiving their diagnosis, according to a new study published in the journal Electronic Biomedical Science. The findings suggest a potential pathway for predicting Alzheimer’s risk and highlight the importance of managing cardiovascular health.
Researchers analyzed medical records from 24,473 patients in the University of California healthcare database, identifying 6,794 progression pathways leading to an Alzheimer’s diagnosis. These pathways were categorized into four main types: mental health conditions like depression and anxiety, brain function impairments such as brain lesions, mild cognitive impairment and cardiovascular diseases including hypertension.
The study revealed that approximately 26% of Alzheimer’s patients followed a specific progression: hypertension, followed by a depressive episode, and then an Alzheimer’s diagnosis. This multi-step process was found to be a stronger predictor of Alzheimer’s than the presence of any single risk factor. Controlling high blood pressure, may play a role in preventing the onset of the disease.
“Compared to a single disease, the sequential progression of hypertension and depression before an Alzheimer’s diagnosis more strongly helps predict subsequent risk,” Elsevier Medical Information stated in a Facebook post. Managing hypertension can not only reduce the risk of heart attack and stroke, but may similarly contribute to Alzheimer’s prevention.
Currently, over 5 million people in Taiwan are estimated to have hypertension, with a prevalence rate of 26.8% among adults aged 18 and older. This research underscores the broad public health implications of managing blood pressure, given its potential link to cognitive decline.
The research team aimed to identify the progression patterns leading to Alzheimer’s, exploring how multiple conditions can accumulate over time to contribute to the disease. This approach differs from previous studies that often focused on individual risk factors. Understanding these pathways could lead to earlier interventions and improved preventative strategies for Alzheimer’s disease.
