Oral Nanocurcumin Reduces Uterine Apoptosis and Boosts Anti-inflammatory IL-10 in Noise-Stressed Pregnant Mice
Background
Exposure to environmental noise during pregnancy can disrupt the delicate immune and apoptotic balance within uterine tissues, potentially impacting reproductive health. Caspase-3 (Casp-3) is a key biomarker for apoptosis, while interleukin-10 (IL-10) is a crucial anti-inflammatory cytokine. Current interventions for such stress-induced imbalances are limited, highlighting a need for novel, non-hormonal approaches. Nanocurcumin, a potent antioxidant and immunomodulator, presents a promising therapeutic candidate due to its known anti-inflammatory properties.
Study Design
Researchers investigated the effects of oral nanocurcumin on noise-stressed pregnant mice. Twenty-five pregnant BALB/c mice were divided into five groups: a negative control (no noise, no treatment), a positive control (noise exposure only), and three treatment groups receiving noise exposure plus nanocurcumin at 14 mg/kg BW (P1), 21 mg/kg BW (P2), or 24.5 mg/kg BW (P3). Oral treatments were administered daily from gestational day (GD) 6-18. Uterine tissues were subsequently harvested for immunohistochemical analysis to quantify Casp-3 and IL-10 expression, with data analyzed using ANOVA, Tukey's HSD, and linear regression.
Results
Noise exposure significantly disrupted uterine homeostasis, leading to increased Casp-3 expression and reduced IL-10 expression (p < 0.05). Oral nanocurcumin effectively reversed these detrimental effects in a dose-dependent manner. The highest dose group (P3, 24.5 mg/kg BW) showed the most pronounced improvements. > In the P3 group, uterine Casp-3 expression decreased by 20.7% compared to the noise-exposed control (K+), while IL-10 expression increased by a substantial 41.7% (both p < 0.05). Linear regression analysis further confirmed strong, statistically significant correlations between the administered nanocurcumin dose and the expression levels of both Casp-3 and IL-10, underscoring its potent immunomodulatory and anti-apoptotic actions in the stressed uterus.
Key Findings
- Noise exposure significantly increased uterine
Casp-3(apoptotic marker) and decreasedIL-10(anti-inflammatory marker) expression in pregnant mice (p < 0.05). - Oral nanocurcumin reversed noise-induced uterine
Casp-3andIL-10imbalances in a dose-dependent manner. - The highest nanocurcumin dose (24.5 mg/kg BW) reduced uterine
Casp-3expression by 20.7% compared to noise-exposed controls. - The highest nanocurcumin dose (24.5 mg/kg BW) increased uterine
IL-10expression by 41.7% compared to noise-exposed controls. - Linear regression showed strong correlations between nanocurcumin dose and both
Casp-3andIL-10expression levels.
Why It Matters
This study provides compelling preclinical evidence that oral nanocurcumin could serve as a non-hormonal therapeutic strategy for mitigating reproductive stress during pregnancy. By restoring the critical balance between apoptotic and anti-inflammatory pathways in the uterus, it offers a novel approach to improve maternal health outcomes in environments with chronic noise exposure. While currently limited to a mouse model, these findings suggest a potential nutraceutical intervention that could be translated into human protocols, particularly for pregnant individuals facing environmental stressors. Further research is needed to establish optimal human dosing and safety, but the dose-dependent efficacy observed here lays a strong foundation for future clinical development, potentially influencing future recommendations for dietary supplements during pregnancy.
nanocurcumin
pregnancy
noise-stress
uterine-health
apoptosis
inflammation