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Record W2120777381 · doi:10.1093/humrep/15.2.419

Glycine transport by single human and mouse embryos

2000· article· en· W2120777381 on OpenAlex
Mary‐Anne Hammer

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueHuman Reproduction · 2000
Typearticle
Languageen
FieldBiochemistry, Genetics and Molecular Biology
TopicAldose Reductase and Taurine
Canadian institutionsOttawa Fertility Centre
Fundersnot available
KeywordsOsmolyteEmbryoSarcosineGlycineZygoteBiologyCleavage (geology)IntracellularBiochemistryBlastocystCell biologyEmbryogenesisAmino acid

Abstract

fetched live from OpenAlex

Mouse zygotes and early cleavage-stage embryos have previously been shown to utilize glycine as an organic osmolyte, accumulating it to oppose any decrease in cell volume. Such glycine uptake in early cleavage-stage mouse embryos is via the glycine-specific Gly transporter. Mouse embryos also possess swelling-activated channels which function to release osmotically active glycine and other osmolytes when cell volume becomes too large. In this study it was found that human cleavage-stage embryos also transported glycine via a similarly saturable, sarcosine-inhibitable transporter, implying that the Gly transporter also mediates glycine transport in human embryos. Mouse zygotes have previously been shown to accumulate more intracellular glycine when cultured at increased osmolarities for 24 h. It was found in the current study that this ability was lost as preimplantation mouse embryo development proceeded, and that early cleavage-stage human embryos may also be capable of such osmosensitive accumulation of glycine. Finally, using spare human eggs which had failed to fertilize or cleave, the presence of swelling-activated currents resembling those in mouse zygotes was demonstrated. These data indicate that osmoregulation in early human embryos occurs via similar mechanisms as in the mouse.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.149
Threshold uncertainty score0.485

Codex and Gemma teacher scores by category

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

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 head0.011
GPT teacher head0.237
Teacher spread0.226 · 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