Biometals最新文献

筛选
英文 中文
The E. coli escape wave in response to external Zn2+ is zinc reserve-dependent. 大肠杆菌对外源Zn2+反应的逃逸波依赖于锌的储量。
IF 3.6 3区 生物学
Biometals Pub Date : 2025-10-01 DOI: 10.1007/s10534-025-00744-z
Asma Braham, Laurence Lemelle, Eleonore Gallay, Agnès Rodrigue, Vincent Calvez, Christophe Place
{"title":"The E. coli escape wave in response to external Zn<sup>2+</sup> is zinc reserve-dependent.","authors":"Asma Braham, Laurence Lemelle, Eleonore Gallay, Agnès Rodrigue, Vincent Calvez, Christophe Place","doi":"10.1007/s10534-025-00744-z","DOIUrl":"https://doi.org/10.1007/s10534-025-00744-z","url":null,"abstract":"<p><p>The chemotaxis response of E. coli to metal cations is less understood than their response to organic molecules. Using dark-field videomicroscopy, E. coli behavior was analyzed in a 17 mm-long microfluidic channel exposed to a Zn(NO<sub>3</sub>)<sub>2</sub> chemorepellent gradient, generated by a 250 mM solution placed in a well at the channel extremity, with or without prior Zn<sup>2+</sup> pre-exposure of the cultures (10 µM). The bacteria exhibited an escape wave away from the zinc source. Compared to unexposed cultures, zinc pre-exposure resulted in a constant and shorter passage time at a given position of the wave peak, despite unchanged growth and swimming speed. The time lag decreased with growth duration. Given the one-dimensional gradient setup, this decrease is associated to a reduced diffusion duration from the Zn<sup>2</sup>⁺ source. The content of Zn<sup>2</sup>⁺ in the extracellular medium at the peak of the wave is therefore lower, but allows bacteria to escape more rapidly. These findings suggested an increase in bacterial Zn<sup>2</sup>⁺ sensitivity. By analogy to Ni<sup>2</sup>⁺ binding to the cytoplasmic HAMP domain of the Tar receptor, Zn<sup>2</sup>⁺ likely triggers a chemorepellent response through a cytoplasmic receptor. The activation of this receptor relies on the available zinc pool, which is specifically buffered by substantial other intracellular zinc reservoirs. In this model, saturating the reservoirs in pre-exposed cultures would enable the fastest response time, and a gradual filling of the reservoirs in unexposed cells would reduce a delay in chemotactic escape.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145205300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The pathogenesis of liver fibrosis in Wilson's disease: hepatocyte injury and regulation mediated by copper metabolism dysregulation. 肝豆状核变性肝纤维化的发病机制:铜代谢失调介导的肝细胞损伤及调控
IF 3.6 3区 生物学
Biometals Pub Date : 2025-09-26 DOI: 10.1007/s10534-025-00748-9
Ying Ma, Yue Pu, Hong Chen, Lei Zhou, Bo Yang, Xiaofeng Huang, Juan Zhang
{"title":"The pathogenesis of liver fibrosis in Wilson's disease: hepatocyte injury and regulation mediated by copper metabolism dysregulation.","authors":"Ying Ma, Yue Pu, Hong Chen, Lei Zhou, Bo Yang, Xiaofeng Huang, Juan Zhang","doi":"10.1007/s10534-025-00748-9","DOIUrl":"https://doi.org/10.1007/s10534-025-00748-9","url":null,"abstract":"<p><p>Wilson's disease (WD) is a rare autosomal recessive disorder caused by mutations in ATP7B, which is marked by defective copper metabolism that leads to toxic copper buildup in organs such as the liver and brain, ultimately causing hepatocellular injury and liver fibrosis. This review systematically examined the multifaceted mechanisms through which copper overload drives liver fibrosis. In short, copper ions generate reactive oxygen species via the Fenton reaction, thereby directly impairing the mitochondrial structure and function and inducing hepatocyte apoptosis, necrosis, and cuproptosis. Copper ions also activate signaling pathways such as the TGF-β1/Smad and NF-κB pathways, which stimulate hepatic stellate cells and promote their transdifferentiation into collagen-secreting myofibroblasts, which then accelerate extracellular matrix deposition. Moreover, abnormal lipoylation of the copper-dependent proteins metal-binding domain of ferredoxin 1 and dihydrolipoamide transacetylase causes mitochondrial protein oligomer buildup and tricarboxylic acid cycle dysfunction, reinforcing an \"oxidative damage-inflammation-fibrosis\" vicious cycle. The disruption of copper chaperones and lysosomal copper accumulation further intensifies oxidative stress and dysregulates the immune microenvironment. Current therapies focus mainly on copper chelation but exhibit limited ability to reverse established fibrosis. Meanwhile, emerging gene therapies face the challenges of delivery efficiency and immunogenicity. Future research should therefore elucidate the dynamic interplay between copper metabolism and the liver microenvironment, identify key regulatory nodes across different disease stages, and shift treatment paradigms from narrow \"symptomatic copper chelation\" to integrated strategies aimed at restoring copper homeostasis. Such advances could yield novel approaches toward the prevention and treatment of WD liver fibrosis.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145172151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Copper/zinc ratio and erythrocyte superoxide dismutase in patients with thyroid nodules. 甲状腺结节患者铜锌比与红细胞超氧化物歧化酶的关系。
IF 3.6 3区 生物学
Biometals Pub Date : 2025-09-22 DOI: 10.1007/s10534-025-00745-y
Bruna Aparecida Melo Batista, Matheus Aragão Dias Firmino, Paula Alexandre de Freitas, Morgana Pinheiro Sousa, Ana Carolina Marinho Ferreira, André Pires Cortez, Wladiana Oliveira Matos, Francisco Luan Fonsêca da Silva, Carla Soraya Costa Maia
{"title":"Copper/zinc ratio and erythrocyte superoxide dismutase in patients with thyroid nodules.","authors":"Bruna Aparecida Melo Batista, Matheus Aragão Dias Firmino, Paula Alexandre de Freitas, Morgana Pinheiro Sousa, Ana Carolina Marinho Ferreira, André Pires Cortez, Wladiana Oliveira Matos, Francisco Luan Fonsêca da Silva, Carla Soraya Costa Maia","doi":"10.1007/s10534-025-00745-y","DOIUrl":"https://doi.org/10.1007/s10534-025-00745-y","url":null,"abstract":"<p><p>The aim of this study was to evaluate biomarkers of zinc and copper status in patients with thyroid nodules. A cross-sectional study of 122 participants with thyroid nodules, diagnosed with cytological examinations (Nodule group) and 72 healthy subjects (Control group) were performed. Anthropometric data were collected; plasma concentrations of zinc and copper were analyzed by flame atomic absorption spectrophotometry and erythrocyte superoxide dismutase (SOD) activity was determined in an automatic biochemical analyzer using spectrophotometry to quantify the enzyme activity. The content of Zn in plasma was lower in the Nodule group than in the Control group, but plasma copper, copper/zinc ratio and erythrocyte SOD activity were higher in the Nodule group (p < 0.001). The levels of Cu and Zn are in the normal range, but the ratio Cu/Zn is altered in nodules group. Thyroid nodule patients exhibited changes in zinc and copper biomarker status compared to healthy individuals. The Cu/Zn ratio is a much more sensitive parameter for evaluating mineral metabolism in thyroid diseases.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Effect of citrulline seed priming on growth, photosynthesis, redox equilibrium, secondary metabolic enzymes, metal sequestration and nutrient acquisition in sunflower (Helianthus annuus L.) under chromium toxicity. 瓜氨酸对铬胁迫下向日葵生长、光合、氧化还原平衡、次生代谢酶、金属固存和养分获取的影响
IF 3.6 3区 生物学
Biometals Pub Date : 2025-09-15 DOI: 10.1007/s10534-025-00743-0
Umer Farooq, Muhammad Arslan Ashraf, Muhammad Iqbal, Rizwan Rasheed
{"title":"Effect of citrulline seed priming on growth, photosynthesis, redox equilibrium, secondary metabolic enzymes, metal sequestration and nutrient acquisition in sunflower (Helianthus annuus L.) under chromium toxicity.","authors":"Umer Farooq, Muhammad Arslan Ashraf, Muhammad Iqbal, Rizwan Rasheed","doi":"10.1007/s10534-025-00743-0","DOIUrl":"https://doi.org/10.1007/s10534-025-00743-0","url":null,"abstract":"<p><p>Citrulline (CITRN) is a potent radical scavenger and osmolyte that plays a crucial role in plant drought stress tolerance. However, its role in mitigating chromium (Cr) phytotoxicity has not been studied yet. This study was conducted to appraise the potential of CITRN seed priming (1, 2, and 3 mM) for alleviating Cr toxicity (20 mg kg<sup>‒1</sup> soil) in sunflower plants. Chromium toxicity resulted in higher oxidative stress and membrane injury in plants, as evident by higher levels of superoxide radicals (O<sub>2</sub><sup>·‾</sup>), hydroxyl radicals (·OH), hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>), malondialdehyde (MDA), and electrolyte leakage (EL). Plants under Cr toxicity displayed higher cytotoxic methylglyoxal (MG) levels and lipoxygenase (LOX) activity, which exacerbated cellular damage. Consequently, plants suffered a significant reduction in growth attributes, photosynthetic pigments, total soluble proteins, leaf relative water content, and nutrient uptake. Chromium toxicity compromised photosystem II (PSII) health as reflected by diminished maximum efficiency of PSII (Fv/Fm), quenching coefficient (qP), and quantum efficiency of PSII (ΦPSII). However, CITRN significantly enhanced plant growth, chlorophyll concentration, PSII health, and nutrient acquisition by regulating reactive oxygen species scavenging, secondary metabolic pathways, and ionic equilibrium under Cr toxicity. Citrulline upregulated antioxidant defense and methylglyoxal detoxification in Cr-stressed plants. Furthermore, CITRN conferred protection against Cr-induced toxicity by elevating hydrogen sulfide, nitric oxide, glutathione, phenolic, and flavonoid compounds that boosted antioxidant defense and mitigated oxidative damage. The present study elucidates CITRN-priming as a potential strategy to mitigate Cr toxicity in Helianthus annuus plants.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145068873","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Excess copper exposure and male reproductive toxicity: molecular mechanisms and potential interventions. 过量铜暴露与男性生殖毒性:分子机制和潜在干预措施。
IF 3.6 3区 生物学
Biometals Pub Date : 2025-09-07 DOI: 10.1007/s10534-025-00742-1
Zimo Zhou, Beiyao Wang, Huidan Deng, Yanqiu Zhu, Hongrui Guo
{"title":"Excess copper exposure and male reproductive toxicity: molecular mechanisms and potential interventions.","authors":"Zimo Zhou, Beiyao Wang, Huidan Deng, Yanqiu Zhu, Hongrui Guo","doi":"10.1007/s10534-025-00742-1","DOIUrl":"https://doi.org/10.1007/s10534-025-00742-1","url":null,"abstract":"<p><p>Copper (Cu) is an essential micronutrient in various enzymatic and physiological functions. However, excessive copper intake, mainly resulting from industrial emissions and improper agricultural practices, has raised growing concerns due to its toxicological effects, particularly on the male reproductive system. This review summarizes current research progress on copper-induced reproductive toxicity in males, emphasizing its impact on sperm quality, androgen production, and testicular structure and function. The underlying molecular mechanisms are discussed in detail, including oxidative stress, apoptosis, autophagy, ferroptosis, and cuproptosis. In addition, emerging therapeutic approaches, such as antioxidant treatments and copper chelators, are evaluated for their potential to mitigate these toxic effects. A comprehensive understanding of copper-induced male reproductive toxicity may offer new insights into the prevention and management of metal-related infertility.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145008058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrating hematological profile and biomarker analysis for metals and metalloids ecotoxicological assessment on Wallago catfish and Indian carp health in Head Siphon, Mailsi, Pakistan. 巴基斯坦梅尔西Head Siphon地区Wallago鲶鱼和印度鲤鱼健康的血液学特征和金属及类金属生态毒理学综合分析。
IF 3.6 3区 生物学
Biometals Pub Date : 2025-09-05 DOI: 10.1007/s10534-025-00737-y
Kaynat Saeed, Sajid Abdullah, Muhammad Yaqoob, Minahal Fatima, Zunaira Majeed, Muhammad Ismail, Sara F Ghanem, Moaheda E H Eissa, Hesham Hassanien, Zulhisyam Abdul Kari, El-Sayed Hemdan Eissa
{"title":"Integrating hematological profile and biomarker analysis for metals and metalloids ecotoxicological assessment on Wallago catfish and Indian carp health in Head Siphon, Mailsi, Pakistan.","authors":"Kaynat Saeed, Sajid Abdullah, Muhammad Yaqoob, Minahal Fatima, Zunaira Majeed, Muhammad Ismail, Sara F Ghanem, Moaheda E H Eissa, Hesham Hassanien, Zulhisyam Abdul Kari, El-Sayed Hemdan Eissa","doi":"10.1007/s10534-025-00737-y","DOIUrl":"https://doi.org/10.1007/s10534-025-00737-y","url":null,"abstract":"<p><p>Bioaccumulation of metals and metalloids in marine environments poses a significant risk to both human and aquatic health, with seasonal fluctuations substantially influencing its dynamics and magnitude. This study investigated the impact of metals and metalloids exposure on the health of Wallago attu (Wallago catfish) and Catla catla (Indian carp) inhabiting the Head Siphon, Mailsi, Pakistan. This study involved the seasonal (May 2022, October 2022, April 2023) assessment of physicochemical properties and the concentrations of several metals and metalloids-copper (Cu), chromium (Cr), arsenic (As), cadmium (Cd), nickel (Ni), zinc (Zn), and iron (Fe)-in water samples. Additionally, we evaluated hematological indices and antioxidant enzyme such as superoxide dismutase (SOD), catalase (CAT), and peroxidase (POD) in both fish species. Our analysis revealed seasonal variations in water quality and metal/metalloid concentrations. The results indicate summer exhibited the highest metal concentrations, following the trend: Cu > Zn > Fe > Cd > Cr > As > Ni. Specifically, Cu peaked in summer, Cr and Ni remained relatively stable, Cd decreased from summer to winter/spring, and Zn mirrored Cu trends, while Fe significantly reduced in winter. Several trace elements and water parameters (pH, nitrate) exceeded USEPA permissible limits, indicating water quality deterioration and potential ecological risks. Antioxidant enzyme profiling revealed species-specific oxidative stress responses. In W. attu, SOD varied distinctly across organs and seasons, with unique winter CAT trends suggesting complex antioxidant defense mechanisms. C. catla displayed elevated SOD, POD, and CAT levels, indicative of a robust stress response. Species-specific hematological variations, potentially indicative of metal/metalloid contamination, were observed. Notably, increased white blood cell counts in spring suggested pollutant-induced immune responses. This study reveals a complex interplay between environmental stressors and fish health, showing that exposure to metals and metalloids can cause adverse physiological effects in W. attu and C. catla. These findings are important because they suggest a potential risk to human health through the consumption of contaminated fish.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144999374","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Arsenic, mercury, manganese, and lead exposure in Mexican adults aged 50 and older. 墨西哥50岁及以上成年人的砷、汞、锰和铅暴露。
IF 3.6 3区 生物学
Biometals Pub Date : 2025-09-04 DOI: 10.1007/s10534-025-00739-w
David Hernández-Bonilla, Marlene Cortez-Lugo, Hortensia Moreno-Macias, Rebeca Wong, Victor Hugo Ríos-Baza, Halle Cathey, Horacio Riojas-Rodríguez
{"title":"Arsenic, mercury, manganese, and lead exposure in Mexican adults aged 50 and older.","authors":"David Hernández-Bonilla, Marlene Cortez-Lugo, Hortensia Moreno-Macias, Rebeca Wong, Victor Hugo Ríos-Baza, Halle Cathey, Horacio Riojas-Rodríguez","doi":"10.1007/s10534-025-00739-w","DOIUrl":"https://doi.org/10.1007/s10534-025-00739-w","url":null,"abstract":"<p><p>Describe the levels of arsenic, mercury, manganese, and lead in the hair of older Mexican adults and analyze their association with exposure and sociodemographic factors. This cross-sectional study used a random subsample of 2474 adults aged 50 and older from the 2018 Mexican Health and Aging Study. Metal levels in hair were quantified using inductively coupled plasma mass spectrometry and an optical emission spectrometer with a hydride generator. Linear regression models were used to assess the associations between metal/metalloid levels and sociodemographic factors. Median hair levels were arsenic 0.04 μg/g, mercury 0.14 μg/g, manganese 0.79 μg/g, and lead 0.65 μg/g. Arsenic levels increased with age, while manganese and lead levels decreased. Males exhibited higher concentrations of all metalloids/metals compared to females. BMI was associated with increased arsenic levels. The use of wood or charcoal for cooking was associated with increased hair manganese. Household pesticide use was associated with elevated levels of mercury, manganese, and lead. Cooking with glazed clay pots was associated with increased lead levels. Residing near exposure sites increased mercury, manganese, and lead levels in hair. Additionally, seven or more years of schooling was associated with increased mercury levels, while low/middle socioeconomic status was associated with increased hair manganese levels. The results reveal significant metal exposure in older Mexican adults, varying according to sociodemographic and exposure factors. These findings underscore the need to implement public policies to reduce metal exposure and protect the health of these vulnerable communities.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144991170","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Selenium status markers and their relationship with anthropometric, glycemic, and inflammatory variables in institutionalized older adults 老年人硒状态标记物及其与人体测量、血糖和炎症变量的关系
IF 3.6 3区 生物学
Biometals Pub Date : 2025-09-03 DOI: 10.1007/s10534-025-00720-7
Julia Curioso Padovam, Rannapaula Lawrynhuk Urbano Ferreira, Manoela Torres-Rêgo, Alessandra Daniele-Silva, Márcia Cristina Sales, Kenio Costa de Lima, Fernando Barbosa, Karine Cavalcanti Maurício Sena-Evangelista, Lucia Fatima Campos Pedrosa
{"title":"Selenium status markers and their relationship with anthropometric, glycemic, and inflammatory variables in institutionalized older adults","authors":"Julia Curioso Padovam,&nbsp;Rannapaula Lawrynhuk Urbano Ferreira,&nbsp;Manoela Torres-Rêgo,&nbsp;Alessandra Daniele-Silva,&nbsp;Márcia Cristina Sales,&nbsp;Kenio Costa de Lima,&nbsp;Fernando Barbosa,&nbsp;Karine Cavalcanti Maurício Sena-Evangelista,&nbsp;Lucia Fatima Campos Pedrosa","doi":"10.1007/s10534-025-00720-7","DOIUrl":"10.1007/s10534-025-00720-7","url":null,"abstract":"<div><p>Selenium’s role in aging is supported by its involvement in antioxidant defense, immune function, and cellular maintenance. Adequate selenium levels can contribute to healthier aging. This cross-sectional study investigated the associations of selenium status markers with anthropometric parameters, glycemic profile, and inflammatory biomarkers in 72 older adults living in nursing homes (NH). Plasma selenium levels were measured using inductively coupled plasma mass spectrometry, and selenoprotein P (SELENOP) was determined using enzyme-linked immunosorbent assay. Dietary selenium intake data were obtained by directly weighing the food at two different times, with an interval of 30 to 45 days between them. The mean age was 83 (8.6) years. The median (IQR) of plasma selenium levels was 88.20 (76.0–106.0)µg/L, for SELENOP 32.30 (29.2–33.5)ng/mL, and the mean (SD) of dietary selenium intake was 72.7 (11.9)µg/day. Overall, 65.2% of participants exhibited elevated glycated hemoglobin (HbA1c) levels. Insufficient plasma selenium levels to optimize SELENOP (&lt; 100 μg/L) showed a significant association with being underweight (<i>p</i> = 0.04). Participants with low SELENOP and low dietary selenium intake had HbA1c levels above 6.4% (<i>p</i> = 0.05). Plasma selenium levels and dietary selenium intake were positively correlated with body mass index (<i>ρ</i> = 0.408, <i>p</i> = 0.001 and <i>r</i> = 0.382, <i>p</i> = 0.004, respectively). Selenium status markers were not associated with the inflammatory biomarkers. However, half of the population had high levels of IL-6 and TNF-α, and 98.5% had high levels of hs-CRP. In conclusion, lower plasma selenium was associated with underweight status, while reduced SELENOP and dietary selenium intake correlated with elevated HbA1c in older adults in NH.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":491,"journal":{"name":"Biometals","volume":"38 5","pages":"1673 - 1684"},"PeriodicalIF":3.6,"publicationDate":"2025-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144991137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Uptake and nuclear translocation of lactoferrin by porcine monocytes: impact of iron binding, protease activity, and monocyte activation. 猪单核细胞对乳铁蛋白的摄取和核易位:铁结合、蛋白酶活性和单核细胞活化的影响。
IF 3.6 3区 生物学
Biometals Pub Date : 2025-09-01 DOI: 10.1007/s10534-025-00741-2
Ruben Ongena, Daisy Vanrompay, Eric Cox, Bert Devriendt
{"title":"Uptake and nuclear translocation of lactoferrin by porcine monocytes: impact of iron binding, protease activity, and monocyte activation.","authors":"Ruben Ongena, Daisy Vanrompay, Eric Cox, Bert Devriendt","doi":"10.1007/s10534-025-00741-2","DOIUrl":"https://doi.org/10.1007/s10534-025-00741-2","url":null,"abstract":"<p><p>Lactoferrin (LF) is a glycoprotein found in neutrophils, milk, and various mammalian secretions that plays a crucial role in host defense by modulating the immune response. Previous studies have shown that LF is taken up by human monocytes and can be present in their nucleus. However, it is unclear whether the iron saturation levels or the protease activity of LF are involved in this uptake and nuclear translocation. In addition, the activation of monocytes might influence these processes. The present study investigated the uptake and nuclear translocation of bovine LF (bLF) and porcine LF (pLF) in porcine blood-derived monocytes and how this affects monocyte function. Both bLF and pLF were internalized by porcine monocytes. Their uptake was not affected by increased iron saturation levels or by inactivation of the proteolytic activity of LF. Similarly, LPS-induced activation of monocytes did not affect LF internalization. We further investigated whether bLF could modulate LPS-induced cytokine responses by monocytes. Across all tested LPS serotypes and concentrations, bLF failed to decrease the LPS-induced TNF-α secretion by porcine monocytes. Besides internalization, we found that bLF and pLF translocated to the nucleus in a subset of porcine monocytes. This nuclear translocation was not affected by the iron saturation level and proteolytic activity of LF, nor by LPS-induced monocyte activation. Together, these findings further deepen our understanding of LF's interaction with porcine innate immune cells and provide insights into its immunomodulatory properties.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144938151","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Integrated profiling of essential metals, phenolic compounds, anti-inflammatory and hydroxyl radical scavenging activities for five medicinal plants. 五种药用植物必需金属、酚类化合物、抗炎和清除羟基自由基活性的综合分析。
IF 3.6 3区 生物学
Biometals Pub Date : 2025-08-30 DOI: 10.1007/s10534-025-00735-0
Biljana Kukavica, Siniša Škondrić, Kristina Knežević, Toda Ignjatović, Dijana Mihajlović, Đura Nakarada, Nataša Lukić, Miloš Mojović
{"title":"Integrated profiling of essential metals, phenolic compounds, anti-inflammatory and hydroxyl radical scavenging activities for five medicinal plants.","authors":"Biljana Kukavica, Siniša Škondrić, Kristina Knežević, Toda Ignjatović, Dijana Mihajlović, Đura Nakarada, Nataša Lukić, Miloš Mojović","doi":"10.1007/s10534-025-00735-0","DOIUrl":"https://doi.org/10.1007/s10534-025-00735-0","url":null,"abstract":"<p><p>Medicinal plants are valuable sources of bioactive compounds. In this study, we analyzed the levels of essential metals (Fe, Cu, Zn, Mn) in the leaves of Punica granatum, Teucrium montanum, Chaerophyllum coloratum, Petteria ramentacea, and Menyanthes trifoliata using atomic absorption spectrophotometry. Ethanolic leaf extracts were assessed for anti-inflammatory activity via bovine serum albumin BSA and egg albumin (EgA) denaturation assays and for antioxidant potential by hydroxyl radical scavenging using EPR (Electron Paramagnetic Resonance) spectroscopy. Metal concentrations varied across species: Fe (33-93 mg/kg), Cu (4.29-11.61 mg/kg), Zn (12.39-105 mg/kg), and Mn (1.38-1005 mg/kg), with T. montanum showing the highest Fe and M. trifoliata with highest Cu, Zn and Mn levels. Total phenolic content (TPC) ranged from 32 to 117 mg/g<sub>DW</sub>, with the highest in P. granatum, which also demonstrated the strongest hydroxyl radical scavenging. The highest BSA inhibition (~ 80%) was observed in Ch. coloratum, P. granatum, and T. montanum at 0.01 µg/mL TPC. Egg albumin inhibition ranged from 28-50%, with Ch. coloratum being the most active. Significant correlations were found between Cu, Mn, and anti-inflammatory activity, and between Zn, TPC, and both antioxidant and anti-inflammatory effects. These findings suggest a synergistic role of phenolics and trace elements and support the potential use of these plants as dietary supplements against inflammation and oxidative stress.</p>","PeriodicalId":491,"journal":{"name":"Biometals","volume":" ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144938163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信