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A Machine Learning Approach to Design an Efficient Selective Screening of Mild Cognitive Impairment
Published on: January 11, 2020
Role of androgens in mild cognitive impairment and possible interventions during andropause
R S Tan1, S J Pu, J W Culberson
1Department of Family and Community Medicine, University of Texas Medical School and Garden Terrace Alzheimer's Center, 6431 Fannin Street, JJL Suite 308, Houston, TX 77030, USA. robert.s.tan@uth.tmc.edu
Abstract:
Mild cognitive impairment (MCI) is becoming fashionable as a diagnosis, representing a state of cognitive decline associated with negligible functional loss. MCI is important as it often precedes Alzheimer's disease (AD). Recognizing MCI may lead to preventive strategies that can delay the onset of AD. Many patients who transition into andropause report problems with their memory. There is strong evidence from basic sciences and epidemiological studies that both estrogens and androgens play a protective role in neurodegeneration. The evidence from small prospective clinical trials lends support to the role of hormones in improving cognitive function. The improvement in cognitive function with hormones is subtle and often not measurable on standard neuropsychological batteries. Patients have reported memory improvements in both declarative and procedural domains after being on hormonal replacement. Functional changes and vascular changes can be detected after hormonal replacement with more sophisticated imaging of the brain like PET scans. We hypothesize androgens and perhaps selective androgen receptor modulators as future treatment options for MCI in aging males.
Insights
Mild cognitive impairment (MCI) in aging males may be linked to andropause. Hormone replacement therapy shows potential for subtle cognitive improvements, warranting further study for Alzheimer's disease prevention.
Area of Science:
- Neuroscience
- Endocrinology
- Geriatrics
Background:
- Mild cognitive impairment (MCI) is a precursor to Alzheimer's disease (AD).
- Andropause, or late-onset hypogonadism, is associated with memory complaints in aging males.
- Hormones like estrogens and androgens are implicated in neuroprotection and cognitive function.
Purpose of the Study:
- To explore the role of androgens in mild cognitive impairment (MCI) in aging males.
- To investigate the potential of hormonal replacement therapy for cognitive enhancement in this population.
Main Methods:
- Review of basic science, epidemiological, and clinical trial evidence.
- Analysis of patient-reported memory changes.
- Consideration of advanced neuroimaging techniques (e.g., PET scans) for detecting functional and vascular changes.
Main Results:
- Hormonal replacement therapy may lead to subtle improvements in cognitive function, particularly in declarative and procedural memory.
- Functional and vascular brain changes post-hormone replacement can be detected with advanced imaging.
- Androgens and selective androgen receptor modulators are hypothesized as future treatments for MCI.
Conclusions:
- Hormonal factors, particularly androgens, play a significant role in cognitive health in aging males.
- Further research into androgen-based therapies is warranted for managing MCI and potentially delaying AD onset.
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