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American Focus > Blog > Tech and Science > Scientists Identify 4 Key Factors That May Predict Cognitive Decline : ScienceAlert
Tech and Science

Scientists Identify 4 Key Factors That May Predict Cognitive Decline : ScienceAlert

Last updated: August 29, 2024 9:50 pm
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Scientists Identify 4 Key Factors That May Predict Cognitive Decline : ScienceAlert
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Understanding Predictors of Cognitive Decline in Alzheimer’s Disease

Understanding how key cognitive functions could change in individuals diagnosed with Alzheimer’s disease is crucial for both patients and their caregivers. While the underlying pathology of the condition is similar in most cases, the rates and severity of cognitive deterioration can vary significantly.

A recent prospective study conducted by an international team of researchers has identified age, sex, irregular heart rhythms, and daily activity levels as the most reliable predictors of declining cognition in Alzheimer’s patients. The researchers found that a combination of demographic, somatic, and functional variables provided the best indication of cognitive deterioration in the early stages of the disease.

The study began with a group of 500 Alzheimer’s patients, with data collected over a two-year period. Despite a high drop-out rate, the researchers were able to analyze the information from 169 patients who remained in the study. Various factors such as pain, depression, and neuropsychiatric symptoms were recorded alongside measures of cognitive decline.

Results showed that cognitive decline was significant across all participants, with certain factors standing out as strong predictors of deterioration. Older age, female gender, difficulty with daily activities, and a history of atrial fibrillation were identified as key indicators of cognitive decline.

These predictors, recorded at the beginning of the study, accounted for approximately 14 percent of the variance in cognitive functioning observed at the end of the two-year period. The study also highlighted the impact of cognitive decline on caregivers, emphasizing the need to consider their role in treatment decisions and disease management.

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While some variables like smoking and drinking habits were not included in the analysis, the findings suggest that demographics, medical history, and daily activity levels can play a significant role in predicting the rate of cognitive decline in Alzheimer’s disease.

Ongoing research in this area is helping to improve our ability to forecast disease progression. For example, a new technique utilizing brain scans and biomarkers can now predict cognitive decline over a five-year period. With Alzheimer’s affecting millions worldwide and the number of cases continuing to rise, studies like this are essential for tailoring treatments and support.

The researchers emphasize the importance of a comprehensive treatment approach that considers both patient and caregiver variables in the diagnosis and management of early-stage Alzheimer’s disease. The findings have been published in PLOS ONE.

TAGGED:CognitivedeclineFactorsIdentifyKeyPredictScienceAlertScientists
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