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 2021-11-01 to 2025-11-01.)

Article	Citations
Spawning, egg and larval description of the brazilian basslet Gramma brasiliensis Sazima, Gasparini & Moura, 1998 in captivity	20
Mineral oil viscosity and quantity impact osmotic pressure, not embryo development	17
Morpho-molecular evaluation for developmental competence of oocytes retrieved through transvaginal ovum pick-up from FSH-stimulated Tharparkar donor cows (Bos indicus)	12
Molecular genetic mechanisms of teratozoospermia	11
Effects of reversine and proTAME treatment on chromosome segregation during mouse oocyte maturation	10
Semen sexing and its impact on fertility and genetic gain in cattle	10
Improved embryonic development and utilization rates with EmbryoScope: a within-subject comparison versus a benchtop incubator	10
Morphometric indices of native sheep breeds of the Himalayan region of India using multivariate principal component analysis	10
Extracellular vesicles from seminal plasma improved development of in vitro-fertilized mouse embryos	10
An additional medium renewal of D4 embryo culture improves the concordance of noninvasive chromosome screening with trophectoderm biopsy	9
Comparing the IVM laboratory outcomes between stimulated IVF with unstimulated natural cycles	9
Impact ofAlpinia galangaand zinc on semen quality and some reproductive hormone constituents in California rabbit bucks	9
Morphological description of gametes in cave and surface populations of Astyanax mexicanus (De Filippi, 1853)	8
Prediction of embryo implantation rate using a sole parameter of timing of starting blastulation	8
Robust evidence reveals the reliable rate of normal/balanced embryos for identifying reciprocal translocation and Robertsonian translocation carriers	8
The artificial uterus: on the way to ectogenesis	8
N-Acetyl cysteine reduces the levels of reactive oxygen species and improves in vitro maturation of oocytes from medium-sized bovine antral follicles	7
Unravelling the impact of epigenetic mechanisms on offspring growth, production, reproduction and disease susceptibility	7
Protective effect of onion peel extract on ageing mouse oocytes	7
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	7
Boar seminal plasma improves sperm quality by enhancing its antioxidant capacity during liquid storage at 17°C	7
Does Pten have an impact on oogenesis of PCOS mouse models?	7
Exonic genetic variants associated with unexpected fertilization failure and zygotic arrest after ICSI: a systematic review	7
Effect of two ‘progressively motile sperm–oocyte’ ratios on porcinein vitrofertilization and embryo development	7
Detailed analysis of cytoplasmic strings in human blastocysts: new insights	7

Long-term cryopreservation and frozen embryo transfer do not impact clinical and neonatal outcomes: a retrospective cohort study of slow-frozen early-cleavage human embryos	7
Impact of the number of retrieved oocytes on IVF outcomes: oocyte maturation, fertilization, embryo quality and implantation rate	7
Cytoplasmic granules in bovine oocytes do not affect embryonic or fetal development	6
Comparative analysis of biochemical, hormonal, and mineral compositions of preovulatory and cystic ovarian follicles in buffalo during the non-breeding season	6
Screening the predictors for live birth failure in women after the first frozen embryo transfer based on the Lasso algorithm: a retrospective study	6
Boric acid supplementation promotes the development of in vitro-produced mouse embryos by related pluripotent and antioxidant genes	6
All-triploid offspring in the yellowtail tetra Astyanax altiparanae Garutti & Britski 2000 (Teleostei, Characidae) derived from female tetraploid × male diploid crosses	6
Comparison of sperm preparation methods to improve the recovery of mature spermatozoa in sub-fertile males	6
Influence of choline and follistatin supplementation during in vitro bovine oocyte maturation on oocyte competence and blastocyst development	6
Has the concept of polyspermy prevention been invented in the laboratory?	5
5,10-Methylenetetrahydrofolate reductase becomes phosphorylated during meiotic maturation in mouse oocytes	5
Development of a PCR-based method to identify fetal sex during IVF cycles	5
Therapeutic potential of nanotechnology in reproduction disorders and possible limitations	5
The effect of consecutive ejaculation on the sperm parameters in the oligo-astheno-teratozoospermia (OAT) men	5
Effects of kisspeptin on the maturation of human ovarian primordial follicles in vitro	5
Survival analysis for estimating lamb survival up to weaning in Harnali sheep	5
In vitro maturation in synthetic oviductal fluid increases gene expression associated with quality and lipid metabolism in bovine oocytes	5
Strategy for embryo transfer to improve pregnancy outcomes in advanced maternal age	5
Establishment of trophoblast cell line derived from buffalo (Bubalus bubalis) parthenogenetic embryo	5
Zona pellucida removal modifies the expression and release of specific microRNAs in domestic cat blastocysts	5
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
Autophagic activation in porcine oocytes is independent of meiotic progression	4
A novel approach toward the generation of oocytes by direct diploid cell haploidization	4
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	4
Effects of myo-inositol plus folic acid on ovarian morphology and oocyte quality in PCOS mouse model	4
Effects of embryonic stem cell-conditioned medium on the preimplantation development of mouse embryos	4
Effects of klotho protein or klotho knockdown in porcine oocytes at different stages	4
Extracellular vesicles in mammalian reproduction: a review	4
Effects of calcium-free ageing on ethanol-induced activation and developmental potential of mouse oocytes	4
Live birth derived from a markedly large polar body oocyte: a rare case report	4
A case report of a successful pregnancy after intracytoplasmic sperm injection when all oocytes contained abnormal inclusions in the perivitelline space	4
Obeticholic acid treatment of mice to promote fertilization and reproduction	4
The TLI system can help day-3 single cleavage embryo transfer to obtain comparative clinical outcomes to day-4 or day-5	4
Detrimental effects of electromagnetic radiation emitted from cell phone on embryo morphokinetics and blastocyst viability in mice	4
Analysis of trophectoderm markers in domestic cat blastocysts cultured without zona pellucida	4
Embryo manipulation in neotropical characiform fish: incubation system, anaesthetic, and PGC transplantation in Prochilodus lineatus	4
Association of growth differentiation factor 9 expression with nuclear receptor and basic helix-loop-helix transcription factors in buffalo oocytes during in vitro maturation	4
Assessment of the expression levels of two long non-coding RNAs, lnc-CYP11A1-1 and RP11573D15.8, in human aneuploid and euploid embryos	4
Aloe vera increases collagen fibres in extracellular matrix and mRNA expression of peroxiredoxin-6 in bovine ovarian cortical tissues cultured in vitro	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
Effects of multi-gradient equilibration during vitrification on oocyte survival and embryo development in mice	3
Comparison of three antioxidants in chemical and biological assays on porcine oocytes during ageing in vitro	3
Effect ofNANOGoverexpression on porcine embryonic development and pluripotent embryonic stem cell formationin vitro	3
Seminal quality comparison of first and second cryopreserved ejaculates of Alpine kid goats by flow cytometry	3
Safety evaluation of single-sperm cryopreservation technique applied in intracytoplasmic sperm injection	3
Actin-mediated endocytosis in the E-YSL helps drive epiboly in zebrafish	3
Ameliorating the heat stress effects on maturing bovine oocytes through gamma-oryzanol supplementation	3
Preparation of time-lapse culture dishes with refrigerated medium, rather than pre-warmed, may result in better clinical outcomes	3
The effect of pentoxifylline and calcium ionophore treatment on sperm cell biology in oligoasthenoteratozoospermia samples	3
Mouse embryonic stem cells maintain differentiation potency into somatic lineage despite alternation of ploidy	3

Can sperm quality influence embryo development and its ploidy? Analysis of 811 blastocysts obtained from different sperm sources	3
Liquid storage of porcine in vitro-produced blastocysts; a practical approach for short storage	3
Follicular development, morphological integrity, and oxidative stress in bovine preantral follicles cultured in vitro with ascorbic acid	3
Morphometric evaluation of two-pronucleus zygote images using image-processing techniques	3
Effects of embryo density on cell number of day 3 embryos cultured in a 30-μl drop: a retrospective cohort study	3
Epigenetic modifications at DMRs of imprinting genes in sperm of type 2 diabetic men	3
Evaluation of physiological and morphological parameters for early prediction of prenatal litter size in goats	3
Genomic and transcriptomic evaluations of infertile or subfertile Arunachali yak sperm	3
Resveratrol conjugated with silica nanoparticles used for in vitro bovine oocytes maturation	3
Feeding role of mouse embryonic fibroblast cells is influenced by genetic background, cell passage and day of isolation	3
Treatment of mice with maternal intermittent fasting to improve the fertilization rate and reproduction	3
Comparison of pregnancy rate in dromedary camel between early-stage embryos and blastocyst transfer produced by somatic cell nuclear transfer using in vitro-matured oocytes	3
Do follicle-stimulating hormone receptor polymorphisms in infertile men influence intracytoplasmic sperm injection outcomes? A prospective cohort study	3
Microtubule-severing protein Fidgetin-like 1 promotes spindle organization during meiosis of mouse oocytes	3
The effect of rapamycin treatment on mouse ovarian follicle development in dehydroepiandrosterone-induced polycystic ovary syndrome mouse model	3
Investigation of the effect of serotonin-activated semen washing medium on sperm motility at the molecular level: a pilot study	3
Effect of active immunization with recombinant GnRH6-kisspeptin fusion protein on reproductive function in male rats	3
Supplementation with specific branched-chain amino acids (BCAAs) affects mouse sperm parameters and testicular apoptotic gene expression	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
Comparative analysis of calcium-sensing receptor (CaSR) expression and function in normal and abnormal human sperm and spermatogenic cells	3
Overexpression of PD-L1 causes germ cell failure and infertility via CRISP1/PD-L1 interaction in mouse epididymis	3
The expression profile of WNT/β-catanin signalling genes in human oocytes obtained from polycystic ovarian syndrome (PCOS) patients	2
Inhibition of Hsp90 during in vitro maturation under thermoneutral or heat shock conditions compromises the developmental competence of bovine oocytes	2
Comparative study of intracytoplasmic sperm injection using the traditional holding and the oocyte-holding pipette without aspiration	2
Paternal high-fat diet altered H3K36me3 pattern of pre-implantation embryos	2
RETRACTED – Ultrastructural study: in vitro and in vivo differentiation of mice spermatogonial stem	2
β-Mercaptoethanol in culture medium improves cryotolerance of in vitro-produced bovine embryos	2
Micro-TESE surgery combined with ICSI regimen in the treatment of non-obstructive azoospermia patients and its effect analysis	2
Effects of antifreeze protein fromLolium perenneL. (LpAFP) in the vitrification ofin vitro-produced bovine embryos	2
Performance evaluation of Marwari lambs for growth traits and impact of inbreeding	2
Assessment of cell-free DNA and apoptosis in an oocyte microenvironment: promising biomarkers to predict intracytoplasmic sperm injection outcomes	2
Ovarian structure and oogenesis in King Tiger Pleco, L333, Hypancistrus seideli, (Siluriformes: Loricariidae) from the Amazon region	2
Control of sperm penetration using stereumamide A derived from Trichaptum fuscoviolaceum in the in vitro fertilization of pig oocytes	2
Bovine ICSI: limiting factors, strategies to improve its efficiency and alternative approaches	2
Effects of maternal liver abnormality on in vitro maturation of bovine oocytes	2
Bayesian approach for genetic analysis of production and reproduction traits in Jersey crossbred cattle	2
Embryological characteristics and clinical outcomes of oocytes with different degrees of abnormal zona pellucida during assisted reproductive treatment	2
All that glitters is not gold: a stereological study of human donor oocytes	2
Immunohistochemistry and immunocytochemistry analysis of PLZF and VASA in mice testis during spermatogenesis	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
Obesity alters testicular gene expression in mice, monkeys and humans	2
Sex steroid receptors in the ovarian follicles of the lizard Sceloporus torquatus	2
Colony stimulating factor 2 protects the preimplantation bovine embryo from heat shock	2
Resveratrol attenuates doxorubicin-induced toxicity during in vitro culture of mouse-isolated preantral follicles	2
Influence of oocyte and sperm parameters on the morphological quality and the aneuploidy status of the ICSI embryos: a mathematical modelling approach	2
Effect of melatonin on the clinical outcome of patients with repeated cycles after failed cycles of in vitro fertilization and intracytoplasmic sperm injection	2
Differential expression of FSHR and LHR genes and proteins during development of rabbit ovarian follicles	2
Insulin-transferrin-selenium supplementation improves porcine embryo production in vitro	2