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Record W4410315405 · doi:10.1002/vms3.70410

Dose–Response Effects of Oral Melatonin on Reproductive Parameters in Intact Male Pomeranian Dogs With Alopecia X: A Controlled Study

2025· article· en· W4410315405 on OpenAlex

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

VenueVeterinary Medicine and Science · 2025
Typearticle
Languageen
FieldMedicine
TopicSperm and Testicular Function
Canadian institutionsUniversity of Calgary
Fundersnot available
KeywordsTestosterone (patch)SpermMelatoninSemenSemen qualitySpermatogenesisEndocrine systemSemen analysisSperm motilityMedicineInternal medicineHormonePhysiologyAndrologyEndocrinologyBiologyInfertilityPregnancy

Abstract

fetched live from OpenAlex

This study investigates the dose-response effects of oral melatonin on reproductive parameters in intact male Pomeranian dogs diagnosed with Alopecia X. Given melatonin's potential therapeutic effects on hair regrowth and reproductive health, this study aimed to evaluate its impact on semen quality, hormonal profiles and testicular haemodynamics. A total of 16 intact male Pomeranian dogs were randomly assigned to four groups: a control group receiving a placebo and three treatment groups receiving melatonin at low (0.1 mg/kg), medium (0.3 mg/kg) and high (0.5 mg/kg) doses, administered twice daily for 45 days. Reproductive parameters, including semen volume, sperm concentration, total sperm count, sperm motility and levels of testosterone and oestradiol 17-ß, were assessed biweekly. Testicular haemodynamics were evaluated using pulsed Doppler ultrasonography. The results showed dose-dependent improvements in semen quality and testicular blood flow, with the highest dose group demonstrating the most significant improvements. However, analysis of the testosterone-to-oestradiol ratio revealed a decrease in the treatment groups, highlighting a complex hormonal response. Although semen quality improved, the study's short duration may not have captured the full spermatogenesis cycle. These findings suggest that melatonin may enhance reproductive function in male dogs with Alopecia X, but further research is needed to clarify its long-term endocrine effects and optimize treatment protocols.

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)0.002
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.529
Threshold uncertainty score0.366

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.002
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0010.001
Science and technology studies0.0000.001
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 head0.025
GPT teacher head0.319
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