Cognitive domains association with genetic variability of apolipoprotein E in a sample of elderly Russians
Bibliographic record
Abstract
Актуальным является поиск генетических вариантов связывающих снижение различных сфер мыслительных процессов с возрастом и болезнью Альцгеймера. Цель исследования - поиск взаимосвязи белковых гаплотипов двух полиморфных вариантов гена APOE с вариабельностью восьми доменов когнитивных функций пожилых людей, определяемых по баллам батареи тестов Монреальской шкалы оценки когнитивных функций (МоСА). Две наиболее высоко статистически значимые ассоциации выявлены для генотипа ε3/ε3 в сравнении с носителями аллеля ε4. Это домены памяти (р=0,002) и зрительно конструктивных навыков (р=0,007). Не обнаружено статистически значимых ассоциаций для когнитивных сфер: внимание и концентрация, исполнительные функции, язык, абстрактное мышление, счет и ориентация. Возможно, обнаруженные ассоциации обуславливают общую генетическую природу наследования болезни Альцгеймера, психических расстройств, деменции и интеллекта у пожилых людей. The search for genetic variants linking the decline in various areas of cognitive processes with age and Alzheimer’s disease is relevant. The aim was to search for the relationship of protein haplotypes of two polymorphic variants in the APOE gene with the eight cognitive function domains variability in f the elderly. Domains were determined by the battery score of the Montreal Cognitive Assessmnet (MoCA). The two most highly statistically significant associations were identified for the ε3/ε3 genotype in comparison with carriers of the ε4 allele. These are memory (p = 0.002) and visuospatial abilities (p = 0.007) domains. No statistically significant associations were revealed for cognitive domains: attention and concentration, executive functions, language, abstraction, calculations and orientation. Possibly, the identified associations determine the general genetic baseline of inheritance of Alzheimer’s disease, mental disorders, dementia and intelligence in the elderly.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".