The clinical effects of methylenetetrahydrofolate reductase C677T gene mutation on mild vascular cognitive impairment in patients with cerebral infarction
Bibliographic record
Abstract
Objective To study the clinical effects of methylenetetrahydrofolate reductase(MTHFR)C677T gene mutation on mild vascular cognitive impairment(VCI)in patients with cerebral infarction. Methods The prospective study was conducted in 180 patients with atherosclerotic acute cerebral infarction hospitalized from June 2015 to May 2016.180 patients were divided into normal homocysteine(Hcy)group(Hcy 5.46~16.20 μmol / L, n=130)and high Hcy group(Hcy>16.20 μmol / L, n=50). MTHFR C677T genotypes were detected by polymerase chain reaction-restriction endonuclease fragment length polymorphism.The VCI state and risk factors for VCI were analyzed with Montreal Cognitive Assessment scale(MoCA)and Mini Mental State Examination(MMSE)score in patients with acute cerebral infarction on admission and 14 days, 30 days and 90 days after admission. Results MMSE and MoCA scores at 14 days, 30 days, 90 days after admission were lower in high Hcy group than in normal Hcy group(P<0.05 or P<0.01). MMSE and MoCA scores were lower in T/T genotype than in C/C genotype(P<0.05)at 14 day after admission, and lower in C/T genotype than in C/C genotype at 30 day and 90 day follow-up(P<0.05 or P<0.01). Logistic regression analysis showed that Hcy may be independent risk factors for mild VCI(OR=1.274, 95%CI: 1.027~1.264, P=0.018). Conclusions MTHFR C677T gene mutations may cause hyper-homocysteinemia, and promote the emergence of VCI in patients with cerebral infarction.MTHFR C677T gene mutations may be a genetic susceptibility factor for VCI. Key words: Brain infarction; Methylenetetrahydrofolate reductase; Cognition disorders
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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 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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".