Dysregulated serum levels of kisspeptin, NKB, GABA in women with polycystic ovary syndrome and their association with hormonal profiles.
Cheng. Ran R; Zhu. Ying Y; Yang. Liu-Qing LQ; Xiao. Lu L; Fang. Xiao-Hong XH; Zhang. Qin Q
Key Findings
- PCOS patients showed significantly reduced serum kisspeptin and NKB levels and increased GABA levels versus controls.
- Kisspeptin levels positively correlated with LH and LH/FSH ratio in PCOS women.
- In PCOS, GABA levels were strongly positively correlated with NKB levels, a relationship not seen in healthy subjects.
Practical Outcomes
- For biohackers, this study suggests that kisspein‑10 and related pathways may be altered in hormonal disorders like PCOS, hinting that targeting kisspeptin could influence LH/FSH balance. However, no dosing or intervention data were provided, so there’s no direct protocol to apply. It mainly adds to the understanding that these peptides are linked to reproductive hormone regulation and may be worth monitoring in metabolic‑health experiments.
Summary
A Chinese study found that women with polycystic ovary syndrome (PCOS) have lower blood levels of the peptides kisspeptin and neurokinin B (NKB) and higher levels of the neurotransmitter GABA compared to healthy women. In PCOS patients, kisspeptin was linked to higher luteinizing hormone (LH) and the LH/FSH ratio, while GABA and NKB were strongly correlated with each other only in the PCOS group.
Abstract
The clinical study aimed to evaluate the levels of serum kisspeptin, NKB, and GABA in Chinese patients with polycystic ovary syndrome (PCOS) and explore their association with hormonal profiles, as well as the relationship between these levels in PCOS patients and controls. From December 2022 to December 2023, medical records of 60 individuals diagnosed with PCOS and 32 healthy subjects were obtained. Serum kisspeptin, NKB and GABA levels were quantified using enzyme-linked immunosorbent assay (ELISA) kits. To assess the correlation, either Pearson's or Spearman's analytical method was employed between serum kisspeptin, NKB, and GABA levels and hormonal profiles. The results showed that serum kisspeptin and NKB levels were significantly lower in PCOS patients (<i>p</i>﹤.05), while GABA levels were elevated compared to those in the control group (<i>p</i>﹤.05). In PCOS patients, kisspeptin was notably positive-correlated with LH and LH/FSH (<i>p</i>﹤.05), but no significant correlation was found between NKB, GABA, and hormonal profiles. In PCOS, GABA levels had a strong positive correlation with NKB levels (<i>r</i> = 0.613, <i>p</i> = .000), but this was not observed in the control group. In control patients, kisspeptin levels were positively associated with NKB (<i>r</i> = 0.475, <i>p</i> = .011), strongly negatively correlated with GABA levels (<i>r</i> = -0.773, <i>p</i> = .000), but these were not observed in the PCOS group. The study concluded that patients with PCOS have dysregulated levels of serum kisspeptin, NKB, and GABA and that they may have paradoxical effects under physiological and pathological situations.
Study Information
pubmed
2025
2025-02-11T00:00:00.000Z
10.1080/09513590.2025.2463533
1
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