OOIR: Observatory of International Research

Papers

(The H4-Index of Reproductive Biology and Endocrinology is 28. 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 2021-04-01 to 2025-04-01.)

Article	Citations
Factors affecting biochemical pregnancy loss (BPL) in preimplantation genetic testing for aneuploidy (PGT-A) cycles: machine learning-assisted identification	108
In vitro fertilization with frozen embryo transfer increased histamine-mediated contractile sensitivity via PKCβ in human umbilical vein	61
High incidence of sexual dysfunction and timed intercourse was found only in infertile males who with known impairment of sperm quality for a long period: evidence from a hospital-based cross-sectiona	53
Cumulative live birth rates after IVF/ICSI cycles with sperm prepared by density gradient centrifugation vs. swim-up: a retrospective study using a propensity score-matching analysis	48
Pharmacogenomic of LH and its receptor: are we ready for clinical practice?	48
Effects of SARS-CoV-2 infection during IVF treatment on embryo morphokinetics and pregnancy outcomes after fresh transfer: a prospective cohort study	45
Surfing follicular waves in ovarian stimulation: is there a role for LH in DuoStim protocols? A narrative review and SWOT analysis	39
MiR-326 inhibits trophoblast growth, migration, and invasion by targeting PAX8 via Hippo pathway	39
Novel bi-allelic MSH4 variants causes meiotic arrest and non-obstructive azoospermia	38
Who freezes her eggs and why? psychological predictors, reasons, and outcomes of social egg freezing	38
Enucleated bone marrow-derived mesenchymal stromal cells regulate immune microenvironment and promote testosterone production through efferocytosis	37
Cardiovascular disease risk prediction by Framingham risk score in women with polycystic ovary syndrome	37
Anti-mullerian hormone levels before and after ovarian drilling in polycystic ovary syndrome: has this an effect on fertility?	36
Thyroid hormone transport and metabolism are disturbed in the placental villi of miscarriage	36
17α-Ethynylestradiol alters testicular epigenetic profiles and histone-to-protamine exchange in mice	35
Protective effect of melatonin on alleviating early oxidative stress induced by DOX in mice spermatogenesis and sperm quality maintaining	35
Circulating tumor DNA: a noninvasive biomarker for tracking ovarian cancer	35
Assessment of artificial intelligence model and manual morphokinetic annotation system as embryo grading methods for successful live birth prediction: a retrospective monocentric study	34
Association of insulin resistance with polycystic ovary syndrome phenotypes and patients’ characteristics: a cross-sectional study in Iran	33
What are the most common controversial clinical issues in fertility preservation? A content analysis of a collaborative professional online consultation group	32
Polycystic ovary syndrome preceding the diagnosis of acromegaly: a retrospective study in 97 reproductive-aged women	31
High anti-Müllerian hormone (AMH) is associated with increased risks of ectopic pregnancy in women undergoing fresh embryo transfer cycle, a cohort study	31
Longitudinal changes of oxidative stress and PON1 lactonase activity and status in older pregnant women undergoing assisted reproductive technology: a prospective nested case-control study	30
Preparation of the endometrium for frozen embryo transfer: an update on clinical practices	30
Usage and cost-effectiveness of elective oocyte freezing: a retrospective observational study	29

Diagnosis and management of infertility: NICE-adapted guidelines from the Italian Society of Human Reproduction	28
A review of nitric oxide and oxidative stress in typical ovulatory women and in the pathogenesis of ovulatory dysfunction in PCOS	28
The role of luteinizing hormone activity in spermatogenesis: from physiology to clinical practice	28
Management of 14 patients with cornual heterotopic pregnancy following embryo transfer: experience from the past decade	28
Research progress of endometrial receptivity in patients with polycystic ovary syndrome: a systematic review	28