Endocrine disruptors

内分泌干扰物
  • 文章类型: Journal Article
    内分泌干扰物如双酚A(BPA)对环境和人类健康产生不利影响。漆酶用于以环境安全的方式有效地生物降解各种持久性有机污染物。然而,游离漆酶的直接应用通常受到短酶寿命的阻碍,不可重用性,和一次性使用的高成本。在这项研究中,将漆酶固定在新型磁性三维聚(乙二醇)二丙烯酸酯(PEGDA)-壳聚糖(CS)反蛋白石水凝胶(LAC@MPEGDA@CS@IOH)上。与游离漆酶相比,固定化漆酶在BPA降解性能和储存稳定性方面表现出显著的改善。91.1%的100mg/LBPA被LAC@MPEGDA@CS@IOH在3小时内去除,而相同量的游离漆酶仅去除50.6%的BPA。与漆酶相比,LAC@MPEGDA@CS@IOH在更宽的pH值和温度范围内保持了出色的BPA降解效率。此外,10个周期后,其相对活性保持在70.4%,并且该系统在实际的水基质中表现良好。这种高效的固定化漆酶制备方法简单、绿色,可用于进一步开发生态型生物催化剂,以去除废水中的有机污染物。
    Endocrine disruptors such as bisphenol A (BPA) adversely affect the environment and human health. Laccases are used for the efficient biodegradation of various persistent organic pollutants in an environmentally safe manner. However, the direct application of free laccases is generally hindered by short enzyme lifetimes, non-reusability, and the high cost of a single use. In this study, laccases were immobilized on a novel magnetic three-dimensional poly(ethylene glycol) diacrylate (PEGDA)-chitosan (CS) inverse opal hydrogel (LAC@MPEGDA@CS@IOH). The immobilized laccase showed significant improvement in the BPA degradation performance and superior storage stability compared with the free laccase. 91.1% of 100 mg/L BPA was removed by the LAC@MPEGDA@CS@IOH in 3 hr, whereas only 50.6% of BPA was removed by the same amount of the free laccase. Compared with the laccase, the outstanding BPA degradation efficiency of the LAC@MPEGDA@CS@IOH was maintained over a wider range of pH values and temperatures. Moreover, its relative activity of was maintained at 70.4% after 10 cycles, and the system performed well in actual water matrices. This efficient method for preparing immobilized laccases is simple and green, and it can be used to further develop ecofriendly biocatalysts to remove organic pollutants from wastewater.
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  • 文章类型: Journal Article
    内分泌干扰化学物质(EDC)是化合物,无论是自然的还是人造的,干扰内分泌系统的正常运作。越来越多的证据表明,暴露于EDCs会对生殖产生深远的不利影响,代谢紊乱,神经系统改变,激素依赖性癌症的风险增加。干细胞(SCs)是这些病理过程的组成部分,因此,了解EDC如何影响SC功能至关重要。本文综述了有关不同类型的EDC及其对各种类型的SC的影响的文献。包括胚胎,成人,和癌症SC。还评估了EDC可能影响SC表型的可能分子机制。最后,讨论了这些影响对人类健康的可能影响。现有文献表明,EDC可以通过多种方式影响SCs的生物学,包括通过改变荷尔蒙途径,DNA损伤,表观遗传变化,活性氧的产生和基因表达模式的改变。这些破坏可能导致多种细胞命运和疾病在成年后期,包括内分泌紊乱的风险增加,肥胖,不孕症,生殖异常,和癌症。因此,该审查强调了提高人们对EDC对人类健康的复杂影响的认识的重要性。
    Endocrine-disrupting chemicals (EDCs) are compounds, either natural or man-made, that interfere with the normal functioning of the endocrine system. There is increasing evidence that exposure to EDCs can have profound adverse effects on reproduction, metabolic disorders, neurological alterations, and increased risk of hormone-dependent cancer. Stem cells (SCs) are integral to these pathological processes, and it is therefore crucial to understand how EDCs may influence SC functionality. This review examines the literature on different types of EDCs and their effects on various types of SCs, including embryonic, adult, and cancer SCs. Possible molecular mechanisms through which EDCs may influence the phenotype of SCs are also evaluated. Finally, the possible implications of these effects on human health are discussed. The available literature demonstrates that EDCs can influence the biology of SCs in a variety of ways, including by altering hormonal pathways, DNA damage, epigenetic changes, reactive oxygen species production and alterations in the gene expression patterns. These disruptions may lead to a variety of cell fates and diseases later in adulthood including increased risk of endocrine disorders, obesity, infertility, reproductive abnormalities, and cancer. Therefore, the review emphasizes the importance of raising broader awareness regarding the intricate impact of EDCs on human health.
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  • 文章类型: Journal Article
    三种酚类内分泌干扰化合物(EDC)的水平,NP,从湘江沿岸收集的水和沉积物中测定了BPA和4-t-OP,遵义,中国。NP,地表水中BPA和4-t-OP的浓度范围为18.02至311.79ng/L,在淹没水中16.04-408.12ng/L,沉积物中浓度为21.13-892.37μg/kgdw。NP污染在河水和沉积物中均最为严重。淹没水中三种酚类EDC的范围略大于地表水(p>0.05)。中游的水和沉积物浓度均大于上游和下游,并且在某些河段中检测到含量存在显着差异。水体和沉积物中三种酚类EDCs的含量呈正相关。此外,分布系数(Kd)表明NP更容易吸附到沉积物上,BPA和4-t-OP更容易吸附到河水中。此外,风险商(RQ)和危害商(HQ)用于揭示共同暴露于三种酚类污染物引起的环境和健康风险。结果表明,当前的污染是对研究区环境的威胁,而不是对当地人口健康的威胁。
    The levels of three phenolic endocrine-disrupting compounds (EDCs), NP, BPA and 4-t-OP were determined in water and sediment collected from sites along the Xiangjiang River, Zunyi, China. The NP, BPA and 4-t-OP concentrations ranged from 18.02 to 311.79 ng/L in the surface water, 16.04-408.12 ng/L in the submerged water, and 21.13-892.37 μg/kg dw in the sediment. NP contamination was most severe in both the river water and sediment. The ranges of the three phenolic EDCs were slightly greater in the submerged water than in the surface water (p > 0.05). The concentrations in the middle reaches were greater than those in the upstream and downstream reaches in both the water and sediment, and significant differences in content were detected in some reaches. The levels of three phenolic EDCs in the water and sediment had a positive correlation. In addition, the distribution coefficient (Kd) indicated that NP was more likely to adsorb to the sediment, and BPA and 4-t-OP were more likely to adsorb to river water. Moreover, the risk quotient (RQ) and hazard quotients (HQ) were used to reveal the environmental and health risks caused by coexposure to the three phenolic pollutants. The results showed that the current pollution is a threat to the environment of the study area and not a threat to the health of the local population.
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  • 文章类型: Journal Article
    近年来,代谢性疾病的全球流行,即肥胖,代谢综合征,糖尿病和代谢相关脂肪性肝病(MAFLD)与持续暴露于内分泌破坏性化学物质(EDC)密切相关。特别是,那些能够破坏各种代谢途径的。EDC对几种人体组织/系统有负面影响,包括代谢活跃的器官,比如肝脏和胰腺。在它们的有害影响中,EDC诱导线粒体功能障碍和氧化应激,这也是代谢疾病的主要病理生理机制。在这篇叙述性评论中,我们从线粒体功能受损和氧化还原稳态方面深入研究了EDC对肝脏和胰腺组织的毒性作用。
    In recent years, the worldwide epidemic of metabolic diseases, namely obesity, metabolic syndrome, diabetes and metabolic-associated fatty liver disease (MAFLD) has been strongly associated with constant exposure to endocrine-disruptive chemicals (EDCs), in particular, the ones able to disrupt various metabolic pathways. EDCs have a negative impact on several human tissues/systems, including metabolically active organs, such as the liver and pancreas. Among their deleterious effects, EDCs induce mitochondrial dysfunction and oxidative stress, which are also the major pathophysiological mechanisms underlying metabolic diseases. In this narrative review, we delve into the current literature on EDC toxicity effects on the liver and pancreatic tissues in terms of impaired mitochondrial function and redox homeostasis.
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  • 文章类型: Journal Article
    草甘膦,几种广谱除草剂的活性成分,在世界各地广泛使用,尽管已知许多不利影响。其中,它被认为是一种内分泌干扰物。这项工作旨在测试草甘膦对PNT1A人前列腺细胞的影响和潜在的内分泌干扰作用,永生化非肿瘤上皮细胞系,同时具有ERα和ERβ雌激素受体。结果表明,草甘膦诱导细胞毒性,线粒体功能障碍,并通过核易位快速激活ERα和ERβ。分子分析表明凋亡可能参与草甘膦诱导的细胞毒性。凋亡过程可归因于线粒体代谢的改变;因此,使用海马分析仪研究线粒体功能的主要参数。在草甘膦处理的细胞中观察到线粒体功能受损,随着ATP产量的减少,备用呼吸能力,和质子泄漏,随着线粒体偶联效率的提高。最后,免疫荧光分析的结果表明,草甘膦作为雌激素干扰物,决定了两种ER的核易位.核易位的发生与剂量无关,比特定的激素更快,并在整个治疗过程中坚持。总之,收集的结果表明,在非肿瘤前列腺细胞中,草甘膦可以引起细胞死亡,并充当异种雌激素,激活雌激素受体。激素功能的改变会对暴露动物的生殖健康产生负面影响,损害他们的生育能力。
    Glyphosate, the active ingredient of several broad-spectrum herbicides, is widely used throughout the world, although many adverse effects are known. Among these, it has been recognized as an endocrine disruptor. This work aimed to test the effects and potential endocrine disrupting action of glyphosate on PNT1A human prostate cells, an immortalized non-tumor epithelial cell line, possessing both ERα and ERβ estrogen receptors. The results showed that glyphosate induces cytotoxicity, mitochondrial dysfunction, and rapid activation of ERα and ERβ via nuclear translocation. Molecular analysis indicated a possible involvement of apoptosis in glyphosate-induced cytotoxicology. The apoptotic process could be attributed to alterations in mitochondrial metabolism; therefore, the main parameters of mitochondrial functionality were investigated using the Seahorse analyzer. Impaired mitochondrial function was observed in glyphosate-treated cells, with reductions in ATP production, spare respiratory capacity, and proton leakage, along with increased efficiency of mitochondrial coupling. Finally, the results of immunofluorescence analysis demonstrated that glyphosate acts as an estrogen disruptor determining the nuclear translocation of both ERs. Nuclear translocation occurred independent of dose, faster than the specific hormone, and persisted throughout treatment. In conclusion, the results collected show that in non-tumor prostate cells glyphosate can cause cell death and acts as a xenoestrogen, activating estrogen receptors. The consequent alteration of hormonal functions can have negative effects on the reproductive health of exposed animals, compromising their fertility.
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  • 文章类型: Journal Article
    农药是农业和公共卫生的重要工具,协助病虫害控制和疾病管理。然而,它们的广泛使用引发了人们对它们对人类和动物的不利影响的担忧。这篇综述全面审查了农药的毒性概况,专注于它们对神经的有害影响,肝,心脏,和肺系统,以及它们对生殖功能的影响。此外,它讨论了杀虫剂如何模仿激素,从而诱发内分泌系统功能障碍。农药会扰乱内分泌系统,导致神经损伤,肝细胞异常,心功能不全,和呼吸问题。此外,它们还对生殖器官产生不利影响,扰乱激素水平并导致生殖功能障碍。机械上,杀虫剂干扰神经递质功能,酶活性,和激素调节。这篇综述强调了农药对男性生殖的影响,特别是精子获能,射精精子在女性生殖道内经历生理变化的过程,获得使卵母细胞受精的能力。据报道,杀虫剂可以抑制对精子获能至关重要的形态学变化,导致精子获能不良和最终的男性不育。了解农药的毒性作用对于减轻其对人类和动物健康的影响至关重要。并指导未来的研究工作。
    Pesticides serve as essential tools in agriculture and public health, aiding in pest control and disease management. However, their widespread use has prompted concerns regarding their adverse effects on humans and animals. This review offers a comprehensive examination of the toxicity profile of pesticides, focusing on their detrimental impacts on the nervous, hepatic, cardiac, and pulmonary systems, and their impact on reproductive functions. Additionally, it discusses how pesticides mimic hormones, thereby inducing dysfunction in the endocrine system. Pesticides disrupt the endocrine system, leading to neurological impairments, hepatocellular abnormalities, cardiac dysfunction, and respiratory issues. Furthermore, they also exert adverse effects on reproductive organs, disrupting hormone levels and causing reproductive dysfunction. Mechanistically, pesticides interfere with neurotransmitter function, enzyme activity, and hormone regulation. This review highlights the effects of pesticides on male reproduction, particularly sperm capacitation, the process wherein ejaculated sperm undergo physiological changes within the female reproductive tract, acquiring the ability to fertilize an oocyte. Pesticides have been reported to inhibit the morphological changes crucial for sperm capacitation, resulting in poor sperm capacitation and eventual male infertility. Understanding the toxic effects of pesticides is crucial for mitigating their impact on human and animal health, and in guiding future research endeavors.
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  • 文章类型: Journal Article
    双酚是污染环境的危险的内分泌干扰物。由于它们的化学性质,它们在全球范围内用于生产塑料。与雌激素的结构相似性允许双酚与雌激素受体结合并影响体内系统。在塑料工业中最常用的是双酚A(BPA),这对神经也有负面影响,免疫,内分泌,和心血管系统。BPA-双酚S(BPS)的一种流行类似物似乎也对生物体具有类似于BPA的有害影响。因此,使用双重免疫荧光标记,本研究旨在比较BPA和BPS对小鼠空肠肠神经系统(ENS)的影响。研究表明,两种研究的毒素都会影响对P物质(SP)具有免疫反应性的神经细胞的数量,甘丙肽(GAL),血管活性肠多肽(VIP),一氧化氮合酶(nNOS)的神经元同工型,和囊泡乙酰胆碱转运蛋白(VAChT)。在两种测试的双酚的情况下观察到的变化是相似的。然而,BPA的影响表现出更强的神经化学编码变化。结果还表明,长期暴露于BPS会显着影响ENS。
    Bisphenols are dangerous endocrine disruptors that pollute the environment. Due to their chemical properties, they are globally used to produce plastics. Structural similarities to oestrogen allow bisphenols to bind to oestrogen receptors and affect internal body systems. Most commonly used in the plastic industry is bisphenol A (BPA), which also has negative effects on the nervous, immune, endocrine, and cardiovascular systems. A popular analogue of BPA-bisphenol S (BPS) also seems to have harmful effects similar to BPA on living organisms. Therefore, with the use of double immunofluorescence labelling, this study aimed to compare the effect of BPA and BPS on the enteric nervous system (ENS) in mouse jejunum. The study showed that both studied toxins impact the number of nerve cells immunoreactive to substance P (SP), galanin (GAL), vasoactive intestinal polypeptide (VIP), the neuronal isoform of nitric oxide synthase (nNOS), and vesicular acetylcholine transporter (VAChT). The observed changes were similar in the case of both tested bisphenols. However, the influence of BPA showed stronger changes in neurochemical coding. The results also showed that long-term exposure to BPS significantly affects the ENS.
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  • 文章类型: Journal Article
    近几十年来,新的证据已经确定与暴露于内分泌干扰化学物质(EDC)有关的内分泌和神经系统健康问题,包括双酚A(BPA),某些全氟烷基和多氟烷基化合物(PFAS),和邻苯二甲酸酯。这导致了消费者从市场上删除这些化学品的压力,特别是在食品接触材料和个人护理产品中,用结构或功能相似的替代品来驱动它们的替代。然而,这些“新一代”化学物质可能与它们的前辈一样或更有害,有些还没有得到足够的测试。这篇综述讨论了生命早期暴露于新一代双酚的研究,PFAS,和邻苯二甲酸盐及其与斑马鱼神经发育和行为改变的联系,啮齿动物,和人类。作为一个整体,证据表明,双酚A的替代品,尤其是BPAF,和较新的PFAS,比如GenX,会对神经发育产生重大影响。需要进一步研究,特别是邻苯二甲酸酯替代品和生物基替代品,简要讨论。
    In recent decades, emerging evidence has identified endocrine and neurologic health concerns related to exposure to endocrine-disrupting chemicals (EDCs), including bisphenol A (BPA), certain per- and polyfluoroalkyl compounds (PFASs), and phthalates. This has resulted in consumer pressure to remove these chemicals from the market, especially in food-contact materials and personal care products, driving their replacement with structurally or functionally similar substitutes. However, these \"new-generation\" chemicals may be just as or more harmful than their predecessors and some have not received adequate testing. This review discusses the research on early-life exposures to new-generation bisphenols, PFASs, and phthalates and their links to neurodevelopmental and behavioral alterations in zebrafish, rodents, and humans. As a whole, the evidence suggests that BPA alternatives, especially BPAF, and newer PFASs, such as GenX, can have significant effects on neurodevelopment. The need for further research, especially regarding phthalate replacements and bio-based alternatives, is briefly discussed.
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  • 文章类型: Journal Article
    在过去的几十年中,全球甲状腺癌(TC)的发病率有所增加。虽然诊断的改善可能有助于,过度诊断也是一种可能。这篇综述侧重于流行病学,危险因素,与分化型TC(DTC)相关的免疫微环境。
    在Scielo进行了搜索,Scopus,和EMBASE数据库,共72条。TC是最常见的内分泌肿瘤,DTC形式占主导地位。它的发病率在全球范围内上升,尤其是45岁以上的女性。DTC的内源性危险因素包括遗传性疾病,种族,年龄,女性性别,肥胖,和2型糖尿病。环境风险涉及电离辐射,无论是通过治疗还是核事故造成的环境污染,碘缺乏,内分泌干扰物,居住在火山地区,环境污染,和压力。抗肥胖药物的使用仍然存在争议。肿瘤的免疫微环境是肿瘤细胞与宿主细胞相互作用的组织学空间,对于理解侵略性至关重要。免疫疗法成为一种有希望的干预措施。
    DTC管理的最新进展提供了变革性的潜力,需要合作努力才能实施。像精准医学这样的新兴领域,分子谱分析,免疫疗法为未来的探索提供了令人兴奋的前景,塑造甲状腺癌研究诊断和治疗策略的下一个时代。
    全球甲状腺癌(TC)发病率显著上升,部分归因于诊断改善和潜在的过度诊断。这篇综述侧重于流行病学,危险因素,与分化型TC(DTC)相关的免疫微环境。DTC是最常见的内分泌肿瘤,主要影响45岁以上的女性。内源性危险因素包括遗传性疾病,种族,年龄,女性性别,肥胖,2型糖尿病(T2DM)。环境风险包括电离辐射,碘缺乏,内分泌干扰物,火山住宅,污染,和压力。胰高血糖素样肽1激动剂的使用仍然存在争议。肿瘤的免疫微环境对于理解侵袭性至关重要,免疫疗法显示出希望。了解宏观和微观环境因素对于制定有效的DTC预防和治疗策略至关重要。
    UNASSIGNED: The global incidence of thyroid cancer (TC) has increased in the last decades. While improvements in diagnosis may contribute, overdiagnosis is also a possibility. This review focuses on the epidemiology, risk factors, and immune microenvironment associated with differentiated TC (DTC).
    UNASSIGNED: A search was conducted in Scielo, Scopus, and EMBASE databases, involving 72 articles. TC is the most common endocrine neoplasm, with DTC form being predominant. Its incidence has globally risen, particularly among women aged over 45. Endogenous risk factors for DTC include genetic disorders, race, age, female gender, obesity, and type 2 diabetes mellitus. Environmental risks involve ionizing radiation, whether through therapeutic treatment or environmental contamination from nuclear accidents, iodine deficiency, endocrine disruptors, residence in volcanic areas, environmental pollution, and stress. The use of anti-obesity medications remains controversial. The tumor\'s immune microenvironment is the histological space where tumor cells interact with host cells, crucial for understanding aggressiveness. Immunotherapy emerges as a promising intervention.
    UNASSIGNED: Recent advances in DTC management offer transformative potential, requiring collaborative efforts for implementation. Emerging areas like precision medicine, molecular profiling, and immunotherapy present exciting prospects for future exploration, shaping the next era of diagnostic and therapeutic strategies in thyroid cancer research.
    The global incidence of thyroid cancer (TC) has significantly increased, attributed partly to improved diagnosis and potentially to overdiagnosis. This review focuses on the epidemiology, risk factors, and immune microenvironment associated with differentiated TC (DTC). DTC is the most common endocrine neoplasm, and predominantly affects women over 45 years old. Endogenous risk factors include genetic disorders, race, age, female gender, obesity, and type 2 diabetes mellitus (T2DM). Environmental risks encompass ionizing radiation, iodine deficiency, endocrine disruptors, volcanic residence, pollution, and stress. The use of glucagon-like peptide 1 agonists remains controversial. The tumor’s immune microenvironment is crucial for understanding aggressiveness, with immunotherapy showing promise. Understanding both macro and microenvironmental factors is crucial for devising effective prevention and treatment strategies for DTC.
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  • 文章类型: Journal Article
    内分泌干扰物(ED)是普遍存在的污染物,可能与慢性病有关.弱势群体的暴露;包括新生儿,婴儿和儿童;因此必须受到限制。告知父母现在是一个公共卫生挑战。我们在里昂母婴医院进行了定量横断面研究。我们使用问卷调查来评估里昂儿科病房的父母和儿科医疗保健专业人员对ED的信念和知识,法国。总共完成了746份问卷:444份为专业人士,302份为家长。这两个人群中的大多数人都已经听说过ED,但只有10%的父母和5%的专业人士感到足够了解。专业人士的回答比父母好(73%与60%)。信息的主要来源相似:媒体。只有20%的专业人士读过一篇关于ED的科学文章,4%的人接受过培训。父母越来越关注环境暴露和ED,但具体知识仍然令父母和专业人士感到恐惧。需要具体培训。
    Endocrine disruptors (ED) are ubiquitous pollutants, possibly implicated in chronic disease. Exposure of vulnerable populations; including neonates, infants and children; must therefore be limited. Informing parents is now a public health challenge. We conducted a quantitative cross-sectional study at the Lyon Mother and child Hospital. We used questionnaires to assess the beliefs and knowledge about ED of parents and pediatric healthcare professionals in the pediatric ward in Lyon, France. A total of 746 questionnaires were completed: 444 for professionals and 302 for parents. The majority of both populations had already heard of ED but only 10% of parents and 5% of professionals felt sufficiently informed. Professionals answered better than parents (73% vs. 60%). The main source of information was similar: media. Only 20% of professionals had read a scientific article about ED and 4% have followed a training. Environmental exposure and EDs is an increasing concern for parents but specific knowledge remains scare for parents and professionals. Specific training is needed.
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