F&S science · 2026
Flowing differently: exploratory characterization of menstrual effluent compared with peripheral blood.
СтатьяСравнительное исследованиеНазвание и аннотация: Перевод пока не подготовлен
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Michel Rachel, Sinnis-Bourozikas Ariadne, Vanos Valentina, Kirschen Gregory W, St Clair Laura A, Balasubramanian Prasanthy, Skinner John, Mulcare Zachary, Yin Anna, Karaba Andrew H, Sachithanandham Jaiprasath, Ramaiyer Malini, Sabeh Malak El, Liang Jinxiao, Ali Fiza, Pekosz Andrew, Klein Sabra L, Cox Andrea L, Borahay Mostafa A
Аннотация
OBJECTIVE: To characterize the immune cell and hormonal profile of menstrual effluent compared with paired peripheral blood.
DESIGN: This descriptive, cross-sectional study collected menstrual effluent and processed it to isolate cellular and soluble fractions; peripheral blood was processed in parallel. Steroid hormones were quantified using immunoassays, immune cell populations were assessed by multiparameter flow cytometry, and cytokines and chemokines were measured using multiplex assays.
SUBJECTS: Menstrual effluent and peripheral blood were collected from 13 healthy participants (excluding those using NSAIDs or hormonal contraception) after informed consent.
EXPOSURE: None MAIN OUTCOME MEASURES: The immune cell and hormonal profiles of menstrual effluent and peripheral blood were the main outcome measures.
RESULTS: Progesterone and cortisol concentrations were significantly decreased in menstrual effluent compared with peripheral blood. Menstrual effluent exhibited distinct immune and cytokine profiles, including increased plasmacytoid and myeloid dendritic cells, neutrophils, natural killer (NK) cells, and memory CD8+ T cells, alongside decreased regulatory T cells, natural killer T (NKT) cells, and multiple B cell subsets. Cytokine analysis revealed multiple elevated cytokines in menstrual effluent, even after false discovery rate correction.
CONCLUSIONS: Menstrual effluent is immunologically and hormonally distinct from peripheral blood, which may reflect inflammatory and tissue-repair activity. These findings contribute to the understanding of the normative baseline for menstrual effluent.
DESIGN: This descriptive, cross-sectional study collected menstrual effluent and processed it to isolate cellular and soluble fractions; peripheral blood was processed in parallel. Steroid hormones were quantified using immunoassays, immune cell populations were assessed by multiparameter flow cytometry, and cytokines and chemokines were measured using multiplex assays.
SUBJECTS: Menstrual effluent and peripheral blood were collected from 13 healthy participants (excluding those using NSAIDs or hormonal contraception) after informed consent.
EXPOSURE: None MAIN OUTCOME MEASURES: The immune cell and hormonal profiles of menstrual effluent and peripheral blood were the main outcome measures.
RESULTS: Progesterone and cortisol concentrations were significantly decreased in menstrual effluent compared with peripheral blood. Menstrual effluent exhibited distinct immune and cytokine profiles, including increased plasmacytoid and myeloid dendritic cells, neutrophils, natural killer (NK) cells, and memory CD8+ T cells, alongside decreased regulatory T cells, natural killer T (NKT) cells, and multiple B cell subsets. Cytokine analysis revealed multiple elevated cytokines in menstrual effluent, even after false discovery rate correction.
CONCLUSIONS: Menstrual effluent is immunologically and hormonally distinct from peripheral blood, which may reflect inflammatory and tissue-repair activity. These findings contribute to the understanding of the normative baseline for menstrual effluent.