ReviewReproduction, fertility, and development2026
From reservoir to rendezvous: the journey of sperm through the oviduct.
Review in Reproduction, fertility, and development, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Environmental and external stressors of postejaculatory sperm function.The Journal of reproduction and development · 2026Review
- Let the female tract choose: finding the sperm to enhanceAnimal reproduction · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
1 author.
Funding
Abstract
Once viewed simply as a pipeline connecting the ovary and uterus where fertilization and early development occur, the oviduct is becoming more appreciated for its complex functions. The utero-tubal junction (UTJ) restricts the entry of sperm to those meeting specific morphological and molecular requirements. Once sperm passes the UTJ, the isthmus functions as a storage reservoir, retaining sperm before fertilization and prolonging their lifespan, allowing for more asynchrony between sperm deposition and ovulation. Some mammals, such as bats, store sperm for months, but a few days of storage is more common among most species. In the isthmus, some sperm adhere to the oviduct epithelium whereas others are free and moving. Some of the adherent sperm detach from oviduct cells and move to the ampulla, relying on a complex interplay that brings a limited number of sperm to rendezvous with oocytes. Thus, the oviduct is responsible for sperm selection, storage, transport, maturation, and fertilization. Focused primarily on mammals, this review discusses the mechanisms underpinning each of these steps.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.