Publications by authors named "Mengmei Ni"

Yak milk is a promising lipid source substitute for infant formulas designed to mimic human milk. However, comparative studies on the lipid profiles between human and yak milk are scarce. To address this gap, in this study, we thoroughly analysed and compared the lipidome and fatty acid (FA) composition of human colostrum, human mature milk and yak mature milk.

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Bisphenol S (BPS) is the main substitute for bisphenol A (BPA). However, the neurodevelopmental toxicity of BPS and the underlying mechanisms remain unraveled. In present study, the neuro-differentiating human embryonic stem cells, hESC, was exposed to BPS (0-375 µM) at different stages (the precursor stage, the precursor to maturation stage, and the whole differentiation stage) to assess the potential neurodevelopmental toxicity and its mechanisms.

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Increasing evidence suggests that carotenoids play an important role in visual and cognitive development during early life. This study aimed to depict the carotenoid profile in maternal/cord plasma and breast milk in three northern cities of China while investigating the association between dietary carotenoid intake and breast milk carotenoid levels. We enrolled 990 lactating mothers from three urban northern Chinese cities to collect breast milk (including colostrum, transitional milk, early mature milk, middle mature milk, and late mature milk).

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Bisphenol A (BPA) is a typical food chemical contaminant with various detrimental effects, especially on reproductive system. Male prostate damage is also one of its major adverse health effects, of which mode of action (MOA) remains unclear. This study aims to explore the MOA for prostate toxicity of BPA using human normal prostate epithelial cell RWPE-1 for 28-day human-relevant-level exposure.

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Article Synopsis
  • Bisphenol A (BPA) is identified as an endocrine disruptor linked to cardiovascular toxicity, necessitating an exploration of its adverse outcome pathway (AOP).
  • The study utilized bioinformatics to analyze interactions between BPA, genetic factors, and cardiac effects, uncovering key target genes (like ESR2 and MAPK1) and related heart phenotypes.
  • The proposed AOP suggests that BPA activates specific signaling pathways, leading to calcium imbalance and inflammation, ultimately impairing cardiac function and increasing the risk of heart diseases, with a QWOE score indicating moderate confidence in the findings.
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Bisphenol A (BPA) is a known endocrine disruptor mimicking natural estrogens with the potential to affect human health, especially during prenatal and postnatal exposure at or below current acceptable daily intake levels. Different adverse effects of BPA are still under investigation, and multiple mechanisms of action remain unexplored. This may be one of the reasons for the continuously changing tolerable daily intake (TDI) of BPA with the emergence of new adverse health effects over time.

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Article Synopsis
  • * Researchers analyzed the total and sn-2 FA compositions from milk samples of 70 mothers, revealing significant differences in long-chain polyunsaturated fatty acids (LCPUFA) between urban locations and educational backgrounds.
  • * Findings suggest that mothers in Beijing had higher levels of certain n-6 FAs, while education level affected the fatty acid composition, potentially aiding in the development of more suitable infant formulas.
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Bisphenol A (BPA) is used worldwide and research on the toxicity of BPA has advanced rapidly in the last few decades. This study aimed to evaluate the global scientific output of toxicity of BPA and explore the hot spots and research trends. All available articles related to the toxicity of BPA until 2022 were retrieved from the Web of Science Core Collection database.

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Background: Lutein has been linked with various visual performance disorders, including age-related macular degeneration (AMD). However, previous studies evaluating the association between serum lutein and the risk of AMD showed results, and the efficacy of lutein intake in AMD patients remains unclear.

Methods: To comprehensively estimate the relationship between lutein and AMD, a systematic review and meta-analysis was conducted by searching eligible randomized clinical trials (RCT) and case-control studies to study the association between lutein and AMD on the Cochrane Library, MEDLINE, Elsevier, PubMed, Web of Knowledge, Chinese National Knowledge Infrastructure (CNKI), and Chinese Biomedical Database (CBM) databases until April 2020.

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Bisphenol A (BPA) is of great concern in public health, of which female reproductive toxicity is one major adverse health effect with the unclear mode of action (MOA) yet. Based on the principle of Toxicity Testing in the 21st Century, the purpose of this study is to explore the MOA for female reproductive toxicity using human normal ovarian epithelial cells IOSE80 at 28-day human-relevant-level exposure. A physiological based pharmacokinetic model was used to select the administration concentrations according to the BPA levels in female gonads at human actual exposure scenario.

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Introduction: Although lipid is the major energy source and exerts beneficial effects on infant growth, research on the composition of fatty acid (FA) at the sn-2 position of human milk (HM) in China and abroad is limited.

Objectives: This study aimed to investigate the FA positional distribution in colostrum and mature HM of women living in the inland and coastal areas of China and explore the potential influences of geographical region and lactation stage on the FA profile of Chinese women.

Methods: Colostrum milk (n = 61) and mature milk (n = 56) samples were obtained longitudinally from healthy lactating women in Guangzhou and Chengdu, China.

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Bisphenol A (BPA) is a classical chemical contaminant in food, and the mode of action (MOA) of BPA remains unclear, constraining the progress of risk assessment. This study aims to assess the potential MOAs of BPA regarding reproductive/developmental toxicity, neurological toxicity, and proliferative effects on the mammary gland and the prostate potentially related to carcinogenesis by using the Comparative Toxicogenomics Database (CTD)-based bioinformatics analysis and the quantitative weight of evidence (QWOE) approach on the basis of the principles of Toxicity Testing in the 21st Century. The CTD-based bioinformatics analysis results showed that estrogen receptor 1, estrogen receptor 2, mitogen-activated protein kinase (MAPK) 1, MAPK3, BCL2 apoptosis regulator, caspase 3, BAX, androgen receptor, and AKT serine/threonine kinase 1 could be the common target genes, and the apoptotic process, cell proliferation, testosterone biosynthetic process, and estrogen biosynthetic process might be the shared phenotypes for different target organs.

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Background: The fruits of have been highly sought after medically because its seeds have high oil content (>60%), especially the highest known proportion of nervonic acid (>55%). The objective was to explore the effects of different doses of oil (MOC oil) on the learning and memory of mice and to evaluate whether additional DHA algae oil and vitamin E could help MOC oil improve learning and memory and its possible mechanisms.

Methods: After 30 days of oral administration of the relevant agents to mice, behavioral tests were conducted as well as detection of oxidative stress parameters (superoxide dismutase, malondialdehyde, and glutathione peroxidase) and biochemical indicators (acetylcholine, acetyl cholinesterase, and choline acetyltransferase) in the hippocampus.

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Copper (Cu) has been associated with mental disorders such as autism and epilepsy. So far, publications evaluating copper levels in patients with depressive disorder showed conflicted results. To derive a comprehensive estimation of the relationship between body burden of copper and depressive disorder and explore the possible role of copper in mental health, we performed a systematic review and meta-analysis.

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