Peptides DB
Research-centric peptide and protocol reference hub
Study 11 of 18Gonadorelin (GnRH) literaturePubMed · Observational · Preclinical2026

Study on the Association Between the Systemic Immune-Inflammation Index and Polycystic Ovary Syndrome in Women Undergoing in vitro Fertilization for Subfertility.

The systemic immune-inflammation index (SII) shows a significant association with polycystic ovary syndrome (PCOS) in women undergoing IVF, but further research is needed to confirm its clinical utility.

Read at PubMedAdd to compare

Where it sits

this study against the rest of the gonadorelin (gnrh) corpus
0
Preclinical
17
Observational · this one
0
Open-label
1
Randomised
0
Reviews

Summary and findings

This study investigated the association between the systemic immune-inflammation index (SII) and polycystic ovary syndrome (PCOS) in women undergoing their first in vitro fertilization (IVF) treatment with a gonadotropin-releasing hormone (GnRH) antagonist protocol. A total of 334 women were analyzed, with 160 in the PCOS group and 174 in the non-PCOS group. The study found several reproductive and inflammatory indicators significantly associated with PCOS.

How much of this paper we could read: full text read (0.80). We had a clear abstract, so the summary below closely tracks the paper. What this means →
OR=2.030, 95% CI: 1.079-3.819, P=0.028 for systemic immune-inflammation index (SII)Preclinical2026

Abstract

The authors’ words, as PubMed supplied them

<h4>Purpose</h4>Polycystic ovary syndrome (PCOS) is closely associated with chronic low-grade inflammation. Systemic immune-inflammation index (SII) based on complete blood cell count has shown superior discriminative value in a variety of diseases, but its role in PCOS is still unclear. This study aimed to investigate the association between SII and PCOS in women undergoing their first in vitro fertilization (IVF) treatment with a gonadotropin-releasing hormone (GnRH) antagonist protocol.<h4>Materials and methods</h4>A total of 334 women undergoing their first IVF treatment with a GnRH antagonist protocol from January 2019 to December 2025 were included in this study. They were divided into the PCOS group (n=160) and the non-PCOS group (n=174). Demographic and physical indicators, reproductive endocrine indicators, systemic inflammatory indicators, infertility situation, ovulation induction treatment parameters, and trigger day indicators were collected. Binary logistic regression was used to identify the independent associated factors of PCOS.<h4>Results</h4>The results of the multivariate analysis indicated that anti-Mullerian hormone (AMH) (<i>OR</i>=1.437, 95% <i>CI</i>: 1.222-1.690, <i>P<</i>0.001), basal follicle-stimulating hormone (FSH) (<i>OR</i>=0.718, 95% <i>CI</i>: 0.519-0.993, <i>P=</i>0.046), luteinising hormone (LH) (<i>OR</i>=1.293, 95% <i>CI</i>: 1.100-1.519, <i>P</i>=0.002), testosterone (T) (<i>OR</i>=14.533, 95% <i>CI</i>: 2.162-97.677, <i>P</i>=0.006), SII (<i>OR</i>=2.030, 95% <i>CI</i>: 1.079-3.819, <i>P</i>=0.028), and LH level on the trigger day (<i>OR</i>=1.284, 95% <i>CI</i>: 1.061-1.554, <i>P</i>=0.010) were independently associated with PCOS.<h4>Conclusion</h4>Among patients undergoing their first IVF treatment, SII was independently associated with PCOS. This further supported the crucial role of chronic low-grade inflammation in the pathophysiology of PCOS. In the future, its efficacy needs to be verified through large-scale studies. Before it is fully confirmed, it is not recommended to use it as an independent clinical tool.

Background

This paper addresses the relationship between systemic immune-inflammation and polycystic ovary syndrome (PCOS) in the context of in vitro fertilization (IVF). Previous research has indicated that inflammation may play a role in reproductive health, particularly in women with PCOS. Understanding this association could provide insights into optimizing IVF outcomes for affected women.

Methods

Not reported in abstract.

Results

Not reported in abstract.

Interpretation

Not reported in abstract.

Key findings

  • Not reported in abstract.
  • Not reported in abstract.
  • Not reported in abstract.

Limitations

  • Not reported in abstract.
  • Not reported in abstract.
  • Not reported in abstract.

Elsewhere in the Gonadorelin (GnRH) corpus

CEvaluation of the 7 & 7 Synch and 7-day CO-Synch + CIDR <sup>®</sup> protocols for estrus synchronization of beef cows prior to fixed-time artificial insemination with conventional or sex-sorted semenbiorxiv-preprint · 2020 · 82% (629/769) of cows expressed estrus prior to FTAI with 7 & 7 Synch vs 64% (492/769) with 7-day CO-Synch + CIDR, P=0.01.AnimalCEffect of Treatment With Gonadoreline at the Embryo Transfer on Pregnancy Outcomes in Bovine.biorxiv-preprint · 2021 · Conception rate at 30 days: 45.8% in treated group vs control, p=0.03.AnimalBApplication of the subcutaneous triptorelin stimulation test for the diagnosis of central precocious pubertybiorxiv-preprint · 2023 · Not reported in abstract.HumanCOvarian response in water buffaloes induced to ovulate outside the breeding seasonbiorxiv-preprint · 2025 · P4 concentrations were > 3 ng/ml on Days 26 and 33 in the P4 + eCG group.AnimalBDiagnostic performance of a simplified GnRH stimulation test in central precocious puberty: a multicentre studybiorxiv-preprint · 2026 · Peak LH ≥ 5 IU/L defined CPP diagnosis.HumanBIncidence study of precocious puberty in the population of the state of Goiás: did the COVID-19 pandemic modify the epidemiology?PubMed · 2026 · 154% increase in treatment requests during the pandemic, p<0.001.Human