The Effect of Maternal Choline Intake on Offspring Cognition in Adolescence: Protocol for a 14-year Follow-Up of a Randomized Controlled Feeding Trial
Notice bibliographique
Résumé
BACKGROUND: Choline is an essential micronutrient crucial for fetal neurodevelopment. Numerous rodent studies reveal that compared to maternal consumption of standard chow, maternal prenatal choline deficiency produces lifelong offspring cognitive deficits, and maternal choline supplementation produces lifelong improvements in offspring cognition. Few studies have evaluated this question in humans, with mixed results. Nonetheless, the available data raise concerns about the low choline intakes of pregnant women and highlight the need for knowledge of the functional consequences of various choline intakes during pregnancy. OBJECTIVE: This study will evaluate the cognitive and affective functioning of adolescents born to women who participated in a randomized controlled trial (RCT) of 2 levels of choline intake during pregnancy, with the primary aim of assessing offspring attention and spatial memory. METHODS: In a double-blind, randomized controlled choline feeding trial 26 women beginning their third trimester of pregnancy were randomly assigned to 2 groups: daily choline consumption at 480 or 930 mg/day. In this 14-year follow-up, the offspring (n=21) of these women will complete cognitive tests proctored over videoconferencing software. Cognitive function domains will be assessed using web-based software from the Cambridge Neuropsychological Test Automated Battery (CANTAB Connect). We will also assess facets of mental health using the Achenbach System of Empirically Based Assessment (ASEBA). These assessments will test the hypothesis that third-trimester maternal choline intake exerts lasting effects on offspring attention, memory, executive function, and mental health. RESULTS: Between January 2009 and October 2010, 26 women beginning their third trimester of pregnancy from the Ithaca area were enrolled in the original controlled feeding study. We successfully re-recruited 21 (80%) of the original 26 offspring to this 14-year remote follow-up study. Recruitment started in August 2023 and was concluded in October 2023. Analysis is ongoing, and the first results are expected to be submitted for publication in the fall of 2025. We hypothesize that adolescent offspring born to women in the 930 mg/day group will perform better in domains of attention, memory, executive function, and mental health than offspring of women in the 480 mg/day group. This study is unique because the total maternal choline intake is precisely known, and the offspring are followed into adolescence, a time when group differences are indicative of lifelong effects of prenatal intervention. CONCLUSIONS: The findings will provide important new information concerning the lasting functional consequences of maternal choline intake during pregnancy for offspring neurobehavioral health, thereby informing dietary recommendations and supplementation policies for pregnant women. TRIAL REGISTRATION: ClinicalTrials.gov: NCT05859126; https://clinicaltrials.gov/study/NCT05859126. INTERNATIONAL REGISTERED REPORT IDENTIFIER (IRRID): DERR1-10.2196/73508.
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Comment cette classification a été obtenuedéplier
Prédiction machine sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Le volet Gemma est une étiquette directe du modèle pour chaque travail de la base, lue sur la notice réduite au titre. Le volet Codex est un classifieur appris des 10 348 étiquettes directes de Codex et calibré sur les taux pondérés de l'échantillon; les champs sans appui suffisant ne portent aucun appel Codex. Le mode candidate est l'union des deux volets; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont pas des étiquettes humaines.
Scores du classifieur distillé par catégorie (deux têtes)
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,027 | 0,025 |
| Méta-épidémiologie (sens strict) | 0,006 | 0,003 |
| Méta-épidémiologie (sens large) | 0,013 | 0,006 |
| Bibliométrie | 0,002 | 0,003 |
| Études des sciences et des technologies | 0,004 | 0,003 |
| Communication savante | 0,003 | 0,003 |
| Science ouverte | 0,003 | 0,002 |
| Intégrité de la recherche | 0,008 | 0,007 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,029 | 0,006 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule source (Gemma direct ou Codex distillé), pas un consensus.
Le détail, modèle par modèle et score par score, se trouve en fin de page sous « Comment cette classification a été obtenue ».