OOIR: Observatory of International Research

Papers

(The median citation count of Zygote is 2. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-08-01 to 2026-08-01.)

Article	Citations
Lipid supplementation in donor cows ( Bos taurus ) improves embryo quality	25
Morpho-molecular evaluation for developmental competence of oocytes retrieved through transvaginal ovum pick-up from FSH-stimulated Tharparkar donor cows (Bos indicus)	21
Spawning, egg and larval description of the brazilian basslet Gramma brasiliensis Sazima, Gasparini & Moura, 1998 in captivity	20
Molecular genetic mechanisms of teratozoospermia	20
Mineral oil viscosity and quantity impact osmotic pressure, not embryo development	16
Hormonal induction ensures the production of high-quality semen in fish compared to the presence of females from different production systems	15
Impact ofAlpinia galangaand zinc on semen quality and some reproductive hormone constituents in California rabbit bucks	12
The effect of laser-assisted thinning and laser-assisted drilling techniques on assisted reproductive outcomes	12
Robust evidence reveals the reliable rate of normal/balanced embryos for identifying reciprocal translocation and Robertsonian translocation carriers	11
Effects of reversine and proTAME treatment on chromosome segregation during mouse oocyte maturation	11
Semen sexing and its impact on fertility and genetic gain in cattle	11
The artificial uterus: on the way to ectogenesis	11
Morphometric indices of native sheep breeds of the Himalayan region of India using multivariate principal component analysis	11
Does Pten have an impact on oogenesis of PCOS mouse models?	10
Detailed analysis of cytoplasmic strings in human blastocysts: new insights	10
An additional medium renewal of D4 embryo culture improves the concordance of noninvasive chromosome screening with trophectoderm biopsy	10
Protective effect of onion peel extract on ageing mouse oocytes	9
Unravelling the impact of epigenetic mechanisms on offspring growth, production, reproduction and disease susceptibility	9
Exonic genetic variants associated with unexpected fertilization failure and zygotic arrest after ICSI: a systematic review	9
Comparison of the duration of estradiol administration and the effect on pregnancy outcome of day 3 vitrified–warmed embryo transfer cycle: a randomized controlled trial	9
Cost-effective strategies for long-term bovine trophectoderm cell culture	8
Impact of the number of retrieved oocytes on IVF outcomes: oocyte maturation, fertilization, embryo quality and implantation rate	8
Extracellular vesicles revolutionizing animal reproductive biotechnology: a review	8
Ascorbic acid and biotin modulate heat shock protein mRNA expression after thawing in rat sperm	8
Boric acid supplementation promotes the development of in vitro-produced mouse embryos by related pluripotent and antioxidant genes	8

Screening the predictors for live birth failure in women after the first frozen embryo transfer based on the Lasso algorithm: a retrospective study	8
N-Acetyl cysteine reduces the levels of reactive oxygen species and improves in vitro maturation of oocytes from medium-sized bovine antral follicles	8
Cytoplasmic granules in bovine oocytes do not affect embryonic or fetal development	7
The effect of consecutive ejaculation on the sperm parameters in the oligo-astheno-teratozoospermia (OAT) men	7
Understanding early development: a detailed study of Clarias dussumieri (Valenciennes, 1840), a near-threatened catfish of the Western Ghats	7
All-triploid offspring in the yellowtail tetra Astyanax altiparanae Garutti & Britski 2000 (Teleostei, Characidae) derived from female tetraploid × male diploid crosses	7
Influence of choline and follistatin supplementation during in vitro bovine oocyte maturation on oocyte competence and blastocyst development	7
Spermatogonial stem cell–based cellular therapy for non-obstructive azoospermia: a narrative review	7
In vitro maturation in synthetic oviductal fluid increases gene expression associated with quality and lipid metabolism in bovine oocytes	7
Zona pellucida removal modifies the expression and release of specific microRNAs in domestic cat blastocysts	6
Effects of kisspeptin on the maturation of human ovarian primordial follicles in vitro	6
Comparative analysis of biochemical, hormonal, and mineral compositions of preovulatory and cystic ovarian follicles in buffalo during the non-breeding season	6
Establishment of trophoblast cell line derived from buffalo (Bubalus bubalis) parthenogenetic embryo	6
Therapeutic potential of nanotechnology in reproduction disorders and possible limitations	6
Development of a PCR-based method to identify fetal sex during IVF cycles	6
Has the concept of polyspermy prevention been invented in the laboratory?	6
Assessment of the expression levels of two long non-coding RNAs, lnc-CYP11A1-1 and RP11573D15.8, in human aneuploid and euploid embryos	5
Are the number of nucleolar precursor body and size of pronuclear correlated with embryo development and ploidy status in 1PN zygotes?: an analysis through the time-lapse monitoring and pre-implantati	5
Survival analysis for estimating lamb survival up to weaning in Harnali sheep	5
Obeticholic acid treatment of mice to promote fertilization and reproduction	5
Association of growth differentiation factor 9 expression with nuclear receptor and basic helix-loop-helix transcription factors in buffalo oocytes during in vitro maturation	5
The TLI system can help day-3 single cleavage embryo transfer to obtain comparative clinical outcomes to day-4 or day-5	5
Investigating the impact of psychopharmacological agents on spermatozoa parameters, genomic integrity and chromatin architecture	5
A case report of a successful pregnancy after intracytoplasmic sperm injection when all oocytes contained abnormal inclusions in the perivitelline space	5
Establishing a safe and effective cleaning method for PDMS devices derived from 3D-printed resin moulds in embryo production	5
Effects of myo-inositol plus folic acid on ovarian morphology and oocyte quality in PCOS mouse model	5
Unveiling the role of galectin-3 in patients with azoospermia: potential biomarker for male infertility	5
Analysis of trophectoderm markers in domestic cat blastocysts cultured without zona pellucida	4
Detrimental effects of electromagnetic radiation emitted from cell phone on embryo morphokinetics and blastocyst viability in mice	4
Effects of calcium-free ageing on ethanol-induced activation and developmental potential of mouse oocytes	4
Overexpression of PD-L1 causes germ cell failure and infertility via CRISP1/PD-L1 interaction in mouse epididymis	4
Live birth derived from a markedly large polar body oocyte: a rare case report	4
The stereological investigation of conditioned medium originated from human adipose tissue-derived mesenchymal stem cells and platelet-rich plasma effects on polycystic ovary syndrome in a rat model	4
Embryo manipulation in neotropical characiform fish: incubation system, anaesthetic, and PGC transplantation in Prochilodus lineatus	4
Effects of multi-gradient equilibration during vitrification on oocyte survival and embryo development in mice	4
Spermatogenesis depletion in diploid and triploid yellowtail tetra ( Astyanax altiparanae ) for germ cell transplantation	4
Effects of klotho protein or klotho knockdown in porcine oocytes at different stages	4
The mechanisms that control the preantral to early antral follicle transition and the strategies to have efficient culture systems to promote their growthin vitro	4
Liquid storage of porcine in vitro-produced blastocysts; a practical approach for short storage	4
Autophagic activation in porcine oocytes is independent of meiotic progression	4
Resveratrol conjugated with silica nanoparticles used for in vitro bovine oocytes maturation	3
Direct effect of kisspeptin on steroidogenesis, proliferation and apoptosis in Tan sheep ovarian granulosa cells	3
Gene expression dynamics of TLR2 in twin- and single-bearing goats: a step toward molecular reproductive profiling	3
Preparation of time-lapse culture dishes with refrigerated medium, rather than pre-warmed, may result in better clinical outcomes	3
The effect of rapamycin treatment on mouse ovarian follicle development in dehydroepiandrosterone-induced polycystic ovary syndrome mouse model	3
Genomic and transcriptomic evaluations of infertile or subfertile Arunachali yak sperm	3
Treatment of mice with maternal intermittent fasting to improve the fertilization rate and reproduction	3
The effect of pentoxifylline and calcium ionophore treatment on sperm cell biology in oligoasthenoteratozoospermia samples	3
Morphometric evaluation of two-pronucleus zygote images using image-processing techniques	3
Seminal quality comparison of first and second cryopreserved ejaculates of Alpine kid goats by flow cytometry	3

Evaluation of the impacts of COVID-19 infection and vaccination on the outcomes of assisted reproductive technology (ART) cycles	3
Supplementation with specific branched-chain amino acids (BCAAs) affects mouse sperm parameters and testicular apoptotic gene expression	3
Actin-mediated endocytosis in the E-YSL helps drive epiboly in zebrafish	3
Safety evaluation of single-sperm cryopreservation technique applied in intracytoplasmic sperm injection	3
Evaluation of physiological and morphological parameters for early prediction of prenatal litter size in goats	3
Do follicle-stimulating hormone receptor polymorphisms in infertile men influence intracytoplasmic sperm injection outcomes? A prospective cohort study	3
Relationship between follicle size, oocyte chromatin compaction, and acquisition of meiotic and developmental competences in Nellore ( Bos indicus ) catt	3
Comparative analysis of calcium-sensing receptor (CaSR) expression and function in normal and abnormal human sperm and spermatogenic cells	3
Effect of active immunization with recombinant GnRH6-kisspeptin fusion protein on reproductive function in male rats	3
Early developmental stages of Amazonian pacu Prosomyleus rhomboidalis derived from in loco reproduction	3
Investigation of the effect of serotonin-activated semen washing medium on sperm motility at the molecular level: a pilot study	3
Microtubule-severing protein Fidgetin-like 1 promotes spindle organization during meiosis of mouse oocytes	3
Ameliorating the heat stress effects on maturing bovine oocytes through gamma-oryzanol supplementation	3
Kisspeptin stimulates sheep ovarian follicular development in vitro through homologous receptors	3
Comparison of serum progesterone levels on the day of frozen embryo transfers according to type of endometrial preparation: a single centre, retrospective study	3
A novel approach toward the generation of oocytes by direct diploid cell haploidization	3
Influence of oocyte and sperm parameters on the morphological quality and the aneuploidy status of the ICSI embryos: a mathematical modelling approach	2
Effects of maternal liver abnormality on in vitro maturation of bovine oocytes	2
Ovarian structure and oogenesis in King Tiger Pleco, L333, Hypancistrus seideli , (Siluriformes: Loricariidae) from the Amazon region	2
All that glitters is not gold: a stereological study of human donor oocytes	2
Performance evaluation of Marwari lambs for growth traits and impact of inbreeding	2
Ovarian stimulation with r-hFSH:r-hLH: a descriptive analysis of embryonic morphokinetic data	2
Insulin-transferrin-selenium supplementation improves porcine embryo production in vitro	2
Supplementation of culture medium with quercetin improves mouse blastocyst quality and increases the expression of HIF-1α protein	2
Bovine ICSI: limiting factors, strategies to improve its efficiency and alternative approaches	2
Chemical pregnancy in fresh and cryopreserved cycles, using day 3 (cleavage stage) and day 4 embryos (morula stage)	2
Effects of antifreeze protein fromLolium perenneL. (LpAFP) in the vitrification ofin vitro-produced bovine embryos	2
Immunohistochemistry and immunocytochemistry analysis of PLZF and VASA in mice testis during spermatogenesis	2
Paternal high-fat diet altered H3K36me3 pattern of pre-implantation embryos	2
Assessment of cell-free DNA and apoptosis in an oocyte microenvironment: promising biomarkers to predict intracytoplasmic sperm injection outcomes	2
In vitro effects of the combination of serotonin, selenium, zinc, and vitamins D and E supplementation on human sperm motility and reactive oxygen species production	2
Inhibition of Hsp90 during in vitro maturation under thermoneutral or heat shock conditions compromises the developmental competence of bovine oocytes	2
In vitro fertilization outcomes in young women and their association with male and female infertility aetiology	2
Day 3 embryo assessment does not provide a reliable prediction for blastocyst formation and designation: a retrospective cohort study	2
RETRACTED – Ultrastructural study: in vitro and in vivo differentiation of mice spermatogonial stem	2
Control of sperm penetration using stereumamide A derived from Trichaptum fuscoviolaceum in the in vitro fertilization of pig oocytes	2
Colony stimulating factor 2 protects the preimplantation bovine embryo from heat shock	2
Embryological characteristics and clinical outcomes of oocytes with different degrees of abnormal zona pellucida during assisted reproductive treatment	2
Comparative study of intracytoplasmic sperm injection using the traditional holding and the oocyte-holding pipette without aspiration	2
Micro-TESE surgery combined with ICSI regimen in the treatment of non-obstructive azoospermia patients and its effect analysis	2
Obesity alters testicular gene expression in mice, monkeys and humans	2
Sex steroid receptors in the ovarian follicles of the lizard Sceloporus torquatus	2
The interruption of the treatment with naproxen restored the C57BL/6 ovulation rate	2
Resveratrol attenuates doxorubicin-induced toxicity during in vitro culture of mouse-isolated preantral follicles	2
β-Mercaptoethanol in culture medium improves cryotolerance of in vitro-produced bovine embryos	2