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Record W4392967089 · doi:10.1101/2024.03.17.24304426

Sex-dependent associations between human milk oligosaccharides and malaria outcomes in breastfeeding Ugandan children

2024· preprint· en· W4392967089 on OpenAlexfundno aff
Victor Irungu Mwangi, Tonny Jimmy Owalla, Sara Moukarzel, Emmanuel Okurut, Chloe Yonemitsu, Lars Bode, Thomas G. Egwang

Bibliographic record

VenuemedRxiv · 2024
Typepreprint
Languageen
FieldNursing
TopicInfant Nutrition and Health
Canadian institutionsnot available
FundersUniversity of California, San DiegoGrand Challenges Canada
KeywordsBreastfeedingMalariaMedicineEnvironmental healthDemographyPediatricsImmunologySociology

Abstract

fetched live from OpenAlex

Abstract Human milk oligosaccharides (HMOs), whose compositions vary between secretor and non-secretor mothers, protect breastfeeding children against various diseases. We investigated the relationship between HMOs in Ugandan secretor mothers and malaria outcomes in their children. Malaria outcomes in breastfeeding children followed up over seven months were classified as malaria-free and asymptomatic, mild, or severe malaria. A single human milk sample collected from each mother was analyzed for HMOs. Significantly higher 2’fucosyllactose (2’FL) and lacto-N-fucopentaose I (LNFP I) concentrations were observed in mothers of malaria-free children, and significantly higher lacto-N-tetraose (LNT) concentrations were observed in mothers of children with asymptomatic malaria. Concentrations of five HMOs, 3-fucosyllactose (3 FL), 3’sialyllactose (3’SL), difucosyllactose (DFLac), lacto-N-fucopentaose II (LNFP II), and sialyllacto- N -tetraose b (LSTb); and two HMOs, difucosyllacto-N-tetrose (DFLNT) and fucosyllacto-N-hexaose (FLNH) were significantly higher in mothers of malaria-infected children and children with severe malaria, respectively. Sex-dependent associations were observed for some HMOs.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.004
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.029
GPT teacher head0.324
Teacher spread0.294 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2024
Admission routes1
Has abstractyes

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