Comparing the Metabolomic Landscape of Polycystic Ovary Syndrome within Urban and Rural Environments

BackgroundPolycystic Ovary Syndrome (PCOS) affects up to 10% of women of reproductive age, characterized by hormonal imbalances and metabolic complications. Environmental factors potentially influence the biochemical expression of this condition. This study aims to examine the impact of urban versus rural environments on metabolite profiles in women with PCOS.MethodsThirty women aged between 18 and 40, diagnosed with PCOS according to the Rotterdam 2003 criteria, were recruited, with 16 from urban settings and 14 from rural settings. Serum samples were analyzed using liquid chromatography-tandem mass spectrometry. Principal component analysis and orthogonal partial least squares discriminant analysis were performed to identify metabolic patterns and differences between the two groups.ResultsThis study reveals significant differences in metabolite profiles between women with PCOS from various environmental backgrounds. Rural participants exhibit higher levels of lipid-related metabolites, especially Palmitone, indicating specific dietary influences. Urban participants show distinct changes in carbohydrate and nucleotide metabolism pathways, likely due to processed food consumption. Multivariate analyses demonstrate a clear separation between the groups, emphasizing the environmental impact on PCOS expression.ConclusionsThis research highlights potential environment-related biomarkers for PCOS, emphasizing the importance of developing tailored treatment strategies considering environmental factors. The distinct metabolic profiles observed between urban and rural women provide new insights into the syndrome's complex mechanisms, indicating that environmental influences play a critical role in its biochemical expression and may affect its clinical manifestations.研究背景：多囊卵巢综合征（Polycystic Ovary Syndrome, PCOS）影响高达10%的育龄女性，以激素失衡与代谢并发症为特征。环境因素或可影响该病症的生化表现。本研究旨在探究城乡环境差异对多囊卵巢综合征女性代谢组特征的影响。 研究方法：本研究招募30名年龄介于18至40岁、符合2003年鹿特丹诊断标准的多囊卵巢综合征女性，其中城市环境组16人，农村环境组14人。采用液相色谱-串联质谱法（liquid chromatography-tandem mass spectrometry）对血清样本进行分析，并通过主成分分析（Principal Component Analysis）与正交偏最小二乘判别分析（Orthogonal Partial Least Squares Discriminant Analysis）甄别两组的代谢模式与组间差异。 研究结果：本研究发现，不同环境背景下的多囊卵巢综合征女性代谢组谱存在显著差异。农村受试者的脂质相关代谢物水平更高，尤以棕榈酮（Palmitone）为显著，提示存在特定饮食影响因素。城市受试者则在碳水化合物与核苷酸代谢通路中呈现明显改变，这可能与加工食品的摄入有关。多变量分析结果显示两组样本存在清晰的分离，进一步证实了环境因素对多囊卵巢综合征表型表达的影响。 研究结论：本研究揭示了与环境相关的多囊卵巢综合征潜在生物标志物，强调了在制定个性化治疗策略时需纳入环境因素考量的重要性。城乡女性间观测到的差异化代谢组特征，为理解该综合征的复杂发病机制提供了新视角，表明环境因素在其生化表达中发挥关键作用，并可能影响其临床表型。