Medical Clinic Department, Faculty of Medicine, Universidade de São Paulo, São Paulo 01246-903, Brazil.
Postgraduate Program in Public Policies and Local Development, Escola Superior de Ciências da Santa Casa de Misericórdia de Vitória EMESCAM, Vitória 29045-402, Brazil.
Int J Mol Sci. 2023 Jan 31;24(3):2662. doi: 10.3390/ijms24032662.
Pregnancy complicated by obesity is associated with adverse triggered gestational and neonatal outcomes, with reductions in the subtypes of CD4+ T-lymphocytes representing the modulators of inflammation. It needs to be better established how maternal nutritional statuses impact the neuroendocrine-immune system's action and affect the immunological mechanisms of the maternal-infant relationship via breastfeeding. This study examined the effects of maternal obesity on human colostrum lymphocytes and the intracellular mechanisms of lymphocyte modulation in the presence of leptin, adiponectin, and melatonin via cell proliferation; the release of intracellular calcium; and apoptosis induction. This cross-sectional study analyzed colostrum samples from 52 puerperal splits and divided them into overweight and eutrophic groups. Colostrum lymphocytes underwent immunophenotyping and cell proliferation by flow cytometry and intracellular calcium release and apoptosis assays by immunofluorescence in the presence or absence of hormones. Significant differences were considered when < 0.05 by the chi-square or -test. Maternal obesity reduced the population of T-lymphocytes and TCD4+ in human colostrum and proliferative activities ( < 0.05). These hormones restore lymphocyte proliferation to a level similar to the eutrophic group ( < 0.05). Leptin, adiponectin, melatonin hormones, and biological actions consolidated in the scientific literature also represent maternal and infant protection mechanisms via colostrum and the modulation of human colostrum lymphocytes.
妊娠合并肥胖与不良妊娠和新生儿结局相关,CD4+T 淋巴细胞亚群减少代表炎症的调节剂。需要更好地确定母体营养状况如何影响神经内分泌免疫系统的作用,并通过母乳喂养影响母婴关系的免疫机制。本研究通过细胞增殖、细胞内钙释放和细胞凋亡诱导,研究了母体肥胖对人初乳淋巴细胞的影响,以及瘦素、脂联素和褪黑素存在时淋巴细胞调节的细胞内机制。这项横断面研究分析了 52 例产褥期产妇的初乳样本,并将其分为超重和营养良好两组。通过流式细胞术对初乳淋巴细胞进行免疫表型分析和细胞增殖,通过免疫荧光法检测细胞内钙释放和细胞凋亡。当卡方检验或 t 检验 < 0.05 时,认为存在显著差异。母体肥胖降低了人初乳中 T 淋巴细胞和 TCD4+的数量和增殖活性( < 0.05)。这些激素使淋巴细胞增殖恢复到与营养良好组相似的水平( < 0.05)。瘦素、脂联素、褪黑素激素及其在科学文献中的生物学作用也代表了通过初乳和调节人初乳淋巴细胞的母婴保护机制。