ArticleAndrology2026
Proteomic Profiling of Cryopreservation-Induced Alterations in Rhesus Macaque Sperm.
Article in Andrology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
9 authors.
Funding
Abstract
backgroundSperm cryopreservation is a fundamental technique in assisted reproductive technologies. While human sperm freezing is clinically routine, preserving nonhuman primate sperm remains challenging due to species-specific characteristics and low post-thaw viability.
objectivesThis study aims to investigate the proteomic changes in rhesus macaque sperm before and after cryopreservation, focusing on identifying the molecular mechanisms behind cryoinjury. MATERIALS AND
methodsSemen was collected from six sexually mature male rhesus macaques (6-10 years) using rectal electroejaculation. Motility parameters were quantified pre- and postcryopreservation using computer-assisted semen analysis (CASA) with vapor-phase liquid nitrogen protocols. Data-independent acquisition (DIA) quantitative proteomics, combined with LC-MS/MS, was used to profile global protein expression changes. Differential protein analysis was performed using multibioinformatics tools for functional annotation and network modeling. Papanicolaou and acridine orange (AO) staining were used to assess sperm morphology and DNA integrity, while reactive oxygen species (ROS) assay and immunofluorescence were employed to validate the proteomic analysis results.
resultsWe identified 512 differentially expressed proteins (32 upregulated, 480 downregulated), which are predominantly enriched in pathways related to metabolic reprogramming, oxidative stress response, and protein homeostasis. Immunofluorescence staining further confirmed markedly reduced levels of SOD1, PGK2, PKC‑alpha, and phospho‑tyrosine in sperm after freeze-thaw cycling. These molecular hubs are associated with sperm motility and functional stability and may be essential for regulating energy metabolism, oxidative balance, and proteotoxicity during cryopreservation-induced stress in rhesus macaque sperm.
conclusionCryopreservation induces profound proteomic remodeling in rhesus macaque sperm, mitochondrial electron transport, and metabolic homeostasis. Our findings reveal conserved and species-specific cryoinjury mechanisms, offering molecular targets for optimizing cryopreservation protocols in nonhuman primates to advance reproductive conservation strategies.
Indexed as
Identifiers
What OpenQuestion holds
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.