TL;DR
Get health and wellness essentials delivered free with Prime
- Fast, free delivery on millions of items
- Prime Video, Amazon Music and more included
- Member-only deals all year
A Finnish case-control study found that people diagnosed with Alzheimer’s before age 65 had more of several health conditions, especially in the five years before diagnosis, and used healthcare more often. High blood pressure and high cholesterol were not more common than among matched controls; the findings show a pattern, not a way to predict the disease in an individual.
A study of Finnish health records found that people diagnosed with Alzheimer’s disease before age 65 had a growing range of health problems and more healthcare visits in the years leading up to diagnosis, particularly during the five preceding years. The researchers also found that high blood pressure and high cholesterol were not more common in these patients than in matched controls, suggesting the health profile before early-onset disease may differ from familiar patterns associated with later-onset Alzheimer’s.
The study, led by researchers at the University of Oulu and the University of Eastern Finland, compared records for 407 people with early-onset Alzheimer’s with those of more than 4,000 controls matched by age and sex. The data came from memory clinics at Oulu University Hospital and Kuopio University Hospital, combined with nationwide health registers. Researchers examined conditions and healthcare use during the 15 years before diagnosis.
Compared with controls, people later diagnosed with early-onset Alzheimer’s were more likely to have records of depression, dizziness, headaches, traumatic brain injuries, epilepsy and cerebrovascular disorders, as well as thyroid diseases and problems related to heavy alcohol use. Tinnitus and hearing loss were more common as far back as six to 10 years before diagnosis. The study found no significant differences in morbidity between groups 11 to 15 years before diagnosis, indicating that the observed differences emerged closer to diagnosis.
Healthcare use also increased as diagnosis approached. The steepest rise in visits occurred in the final year before diagnosis. These findings describe differences across groups in the years before diagnosis; they do not establish that any particular condition caused Alzheimer’s or that the conditions can identify who will develop it.
A Different Pattern Before Diagnosis
The results matter because early-onset Alzheimer’s can be difficult to identify in working-age adults, and diagnosis may come years after symptoms first appear. A record of several seemingly unrelated health problems and repeated healthcare encounters could, the researchers suggest, prompt clinicians to consider whether further assessment for a neurodegenerative condition is appropriate. The study does not test a screening method, however, and its findings do not show that this pattern can diagnose Alzheimer’s.
The cardiovascular result also complicates assumptions based on older patients. High blood pressure and hyperlipidemia—high levels of fats such as cholesterol in the blood—are well-known health risks considered in relation to Alzheimer’s, but neither was more common among the early-onset cases than among controls in this study. That finding may point to differences between early- and late-onset disease, but it does not prove that cardiovascular factors have no role in early-onset Alzheimer’s.
memory foam cervical pillow for dementia patients
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
How the Finnish Study Compared Records
The report, published in the journal Alzheimer’s & Dementia, is a population-based case-control study titled “Comorbidities and health-care use prior to early-onset Alzheimer’s disease.” Its comparison of diagnosed cases with age- and sex-matched controls allowed researchers to examine whether recorded health conditions differed before diagnosis. It was not a trial of treatment or a test of an early-detection program.
Lead investigator Adjunct Professor Johanna Krüger of the University of Oulu said the findings support viewing early-onset Alzheimer’s as more than simply the later-onset form occurring at a younger age. First author and doctoral researcher Laura Leppänen said the accumulation of symptoms and healthcare encounters could help raise suspicion earlier. Those statements describe the researchers’ interpretation of the observed associations, not proof that the pattern is specific to Alzheimer’s.
“In the years before diagnosis, patients may accumulate a variety of seemingly unrelated symptoms and healthcare encounters.”
— Laura Leppänen, study first author and doctoral researcher, University of Oulu
As an affiliate, we earn on qualifying purchases.
The Pattern Is Not a Diagnostic Test
The study identifies associations in health records; it does not establish why the conditions were more common or whether they were early signs of Alzheimer’s, unrelated illnesses, or both. No single symptom or condition predicts Alzheimer’s, and the researchers did not report a validated method for using the pattern to screen patients. The findings also do not show that the conditions cause the disease.
The report’s summary does not provide enough detail to determine how broadly the results apply beyond the Finnish patient and register data, or how differences in healthcare access and record-keeping might affect the pattern. It also remains unclear whether these findings would help shorten diagnostic delays in practice. The absence of higher rates of high blood pressure and hyperlipidemia in this sample should not be read as evidence that those factors are irrelevant to every person with early-onset disease.
As an affiliate, we earn on qualifying purchases.
Testing Whether Earlier Recognition Helps
The immediate next step is not a change to diagnosis based on this study alone. Further research would need to establish whether the observed combination of conditions and rising healthcare use can be reproduced in other populations and distinguished reliably from patterns seen in people without Alzheimer’s. Researchers would also need to test whether using such information in clinical care leads to earlier, accurate assessment.
For now, the study adds evidence about the years before early-onset diagnosis, rather than setting out a new clinical pathway. People concerned about memory or other health changes should discuss them with a qualified healthcare professional; this research is not a medical diagnostic guide.
traumatic brain injury recovery kit
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Key Questions
What did the study find?
People diagnosed with Alzheimer’s before age 65 had more records of several health conditions and greater healthcare use than matched controls, particularly in the five years before diagnosis.
Which conditions were more common before diagnosis?
The study reported higher rates of depression, dizziness, headaches, traumatic brain injuries, epilepsy, cerebrovascular disorders, thyroid diseases and problems related to heavy alcohol use. Tinnitus and hearing loss were more common six to 10 years before diagnosis.
Do these symptoms mean someone has Alzheimer’s?
No. The researchers said that no single condition or symptom predicts Alzheimer’s. The study found group-level associations and did not create or validate a diagnostic test.
What did the study find about blood pressure and cholesterol?
High blood pressure and hyperlipidemia were not more common among the early-onset Alzheimer’s group than among matched controls. This result does not establish that cardiovascular factors are irrelevant to individuals or to Alzheimer’s more generally.
Where did the study data come from?
Researchers used memory-clinic data from Oulu University Hospital and Kuopio University Hospital, together with nationwide Finnish health-register records. They compared 407 early-onset Alzheimer’s cases with more than 4,000 age- and sex-matched controls.
Source: rss
Fall Picks
fall essentials
As an affiliate, we earn on qualifying purchases.
