Biological Trace Element Research最新文献

{"title":"In Vivo Test to Evaluate the Cytotoxicity and Genotoxicity of Natural Zeolite (NZ) Functionalized with Silver Nanoparticles (NZ-AgNPs) on Erythrocytes of Yellowtail Tetra Fish Astyanax lacustris.","authors":"Josiane Rodrigues Rocha da Silva, Camila Oliveira de Andrade, Anna Carla Ribeiro, Paula Derksen Macruz, Elizabeth da Costa Neves FernandesAlmeida Duarte, Rosângela Bergamasco, Ana Luiza de Brito Portela-Castro, Carlos Alexandre Fernandes","doi":"10.1007/s12011-024-04451-7","DOIUrl":"https://doi.org/10.1007/s12011-024-04451-7","url":null,"abstract":"<p><p>Silver nanoparticles (AgNPs) have unique properties such as chemical stability, malleability, flexibility, high electrical and thermal conductivity, and catalytic activity, making them suitable for various applications. However, they also pose potential toxicity and environmental contamination risks. Natural zeolites (NZs) are considered excellent inorganic support for reducing the toxicity of AgNPs. The scope of this study was to carry out a comparative assessment of the cytotoxic and genotoxic effects of NZ, NZ functionalized with silver nanoparticles (NZ-AgNPs), and commercial AgNPs on fish Astyanax lacustris. Micronucleus (MN) test, cellular morphological change (CMC) test, and the comet assay were used to assess the effects of the nanoparticles. A. lacustris specimens were exposed to a concentrations of 0.1 mg l^-1 in the NZs, NZ-AgNPs, and commercial AgNPs for 96 h during the experiment. The results showed no significant difference between the negative control and NZ. Moreover, NZ-AgNPs exhibited reduced toxicities compared to commercial AgNPs, which caused higher levels of alterations and cellular damage. The study concluded that NZs effectively reduced cytotoxicity/genotoxicity in A. lacustris specimens when used to support AgNPs.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142708666","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}

{"title":"Insufficient Muscle Development Level Associated with Serum Zinc, Manganese and Cobalt Levels in Children Aged 6 to 9 Years in Shenzhen, China.","authors":"Rimei Liang, Haide Zhu, Xiongcheng Cao, Yuheng Zeng, Yingbin You, Pi Guo, Qingying Zhang","doi":"10.1007/s12011-024-04458-0","DOIUrl":"https://doi.org/10.1007/s12011-024-04458-0","url":null,"abstract":"<p><p>Some trace elements have been found to be associated with muscle mass and muscle function; however, evidence in children is limited, and it remains unclear which trace elements are more relevant. We aimed to explore the association of levels of individual and combined essential trace elements and muscle development level (MDL) in young children. Muscle mass was measured by body composition analysis, and trace elements were determined by using inductively coupled plasma mass spectrometry (ICP-MS). Logistic regression, restricted cubic spline (RCS) and weighted quantile sum regression (WQS) were used to assess the individual and joint associations between trace element levels and MDL. We enrolled 2851 children: 1595 boys (55.9%) and mean age 7.1 years (range 6.8-7.3). The proportion of insufficient muscle mass in the whole body, limbs, upper and lower limbs was 1.9%, 6.5%, 44.9% and 4.6%, respectively. The odds of insufficient MDL decreased with the fourth versus first quartile of zinc (OR = 0.67, 95% CI: 0.51-0.89), manganese (OR = 0.80, 95% CI: 0.65-1.00), and cobalt (OR = 0.89, 95% CI: 0.81-0.99) and was increased with the fourth quartile of nickel (OR = 2.23, 95% CI: 1.72-2.89) and selenium (OR = 1.51, 95% CI: 1.14-1.98). The RCS yielded similar results, except for the discrepancy in high cobalt levels. The odds of insufficient MDL decreased with the combination of nine trace elements (OR = 0.84, 95% CI: 0.73-0.97), primarily zinc (weight = 0.297), manganese (weight = 0.198) and cobalt (weight = 0.173). Insufficient MDL in young children was mainly in upper limbs. Low levels of zinc, manganese, and cobalt, individually or combined, were significantly associated with risk of insufficient MDL. Further foods rich in zinc, manganese, and cobalt should be suggested to supplement in diet, and increase exercise of upper limbs to improve insufficient MDL in the young children should be needed.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142692640","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}

{"title":"Calcium Fructoborate Improves Knee Osteoarthritis in Rats by Activating Hedgehog Signaling Through DDIT3.","authors":"TingXin Yan, Peng Wang, Zhilin Cao","doi":"10.1007/s12011-024-04454-4","DOIUrl":"https://doi.org/10.1007/s12011-024-04454-4","url":null,"abstract":"<p><p>The mechanism of CFB in treating knee osteoarthritis is not yet clear and deserves further discussion. The C28/I2 cell was stimulated by TNF-α and the MIA-induced OA rat model were constructed, and then treated with a certain concentration of CFB. The effects of CFB on chondrocyte apoptosis, inflammatory response, and collagen matrix degradation were assessed. Furthermore, we analyzed the regulation of CFB on the DDIT3 and Hedgehog pathways through western blot analysis. The smoothened agonist inhibitor SAG and DDIT3 overexpression lentivirus were applied to investigate how CFB regulates DDIT3 and Hedgehog pathway to protect against osteoarthritis. Our experimental results proved the protective of CFB against TNF-α stimulated C28/I2 cells. CFB treatment downregulated the DDIT3 protein and inactivated the HH pathway in TNF-α stimulated C28/I2 cells, and this effect may be related to the DDIT3 or HH pathway. Furthermore, the inhibitory effect of CFB on the HH pathway is related to DDIT3. In vivo animal assays showed that CFB can inhibit the degradation of cartilage collagen matrix, inhibit chondrocyte apoptosis, improve chondrocyte damage, and alleviate pain in arthritis rats, and the effect of CFB on OA rats is related to the HH pathway mediated by DDIT3. In summary, CFB has significant therapeutic effects on osteoarthritis, protecting cartilage degradation and damage, and inhibiting inflammatory responses. DDIT3 may participate as an intermediate molecule in the protective effect of the drug on OA. The SHH/GLi1 pathway is regulated by CFB through DDIT3.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142685858","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}

{"title":"High Dietary Zinc Promotes its Optimal Absorption Through Modulation of Key Transporter Genes, SOD1, and HSP70 Expression in Heat-stressed Rats.","authors":"Eranna Lokesha, Sunil Ekanath Jadhav, Ganesh Narayanrao Aderao, Pramod Chaudhary, Sanjay Kumar Gupta, Narayan Dutta, Gyanendra Singh","doi":"10.1007/s12011-024-04447-3","DOIUrl":"https://doi.org/10.1007/s12011-024-04447-3","url":null,"abstract":"<p><p>Global warming causes heat stress (HS) in animals, impacting nutrient absorption and metabolism. Antioxidant nutrients are crucial for combating HS. This study assessed the impact of increased dietary Zn on nutrient utilization, mineral absorption, and expression of Zn homeostasis regulators, superoxide dismutase-1 (SOD1), and heat shock protein-70 (HSP70) genes in rats under HS. Seventy-two four-week-old Wistar rats were assigned to six groups in a 3×2 factorial design, with three dietary Zn levels (14.6, 32.7, and 48.9 ppm) and two environments, thermo-neutral (TN) and HS, for 42 days, including 14 days of HS exposure. Results showed that HS reduced nutrient intake across Zn levels, though ether extract digestibility increased at 32.7 and 48.9 ppm Zn. Intake, excretion, and apparent daily absorption of Ca, P, Zn, Cu, Mn, and Fe were lower in HS than in TN groups. Hepatic metallothionein-1 (MT1) mRNA expression was downregulated in rats fed 14.6 and 32.7 ppm Zn compared to 48.9 ppm Zn under both environmental conditions. Duodenal Zinc transporter-1 (ZnT1) and Zrt- and Irt-like protein-1 (ZIP1) mRNA expression increased with dietary Zn under TN and HS conditions, respectively. Hepatic SOD1 mRNA expression was significantly downregulated in HS groups, while hepatic HSP70 mRNA expression was significantly upregulated at 48.9 ppm Zn under HS. Present study suggests that, under HS conditions in rats, a higher dietary Zn level of 48.9 ppm may be optimal for improving Zn absorption, enhancing ZIP1, MT1, and HSP70 gene expression, and alleviating the negative effects of HS.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142685871","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}

{"title":"Biogenic Nanoparticles as Safer Alternatives for Gastric Ulcers: An Update on Green Synthesis Methods, Toxicity, and Their Efficacy in Controlling Inflammation.","authors":"Susmita Yadav, Suraj N Mali, Anima Pandey","doi":"10.1007/s12011-024-04446-4","DOIUrl":"https://doi.org/10.1007/s12011-024-04446-4","url":null,"abstract":"<p><p>Peptic ulcers, affecting approximately 10% of the global population, can result from factors such as stress, alcohol use, smoking, NSAIDs, Helicobacter pylori infection, and genetic predisposition. Plant-based medicines are gaining recognition for their therapeutic potential, including in the treatment of peptic ulcers. Green chemistry methods for the biological synthesis of nanoparticles (NPs) provide a sustainable alternative to traditional chemical techniques. These nanoparticles, particularly metallic NPs and metal oxides synthesized from plant extracts, offer promising anti-ulcer properties. This review highlights research from 2000 to 2024 on the use of green-synthesized nanoparticles and their role in peptic ulcer treatment, focusing on their therapeutic mechanisms and potential benefits. For this purpose, an electronic search of published research and review articles was conducted in PubMed, Scopus, Science Direct, Cochrane databases, and Google Scholar.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142680708","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}

{"title":"Determination of Minor and Trace Elements in Breast Milk of Lactating Mothers in Early Lactation from Tehran, Iran Using Neutron Activation Analysis Method.","authors":"Banin Shakeri Jooybari, Fatemeh Nasri Nasrabadi, Abdoulreza Esteghamati","doi":"10.1007/s12011-024-04436-6","DOIUrl":"10.1007/s12011-024-04436-6","url":null,"abstract":"<p><p>This study aimed to evaluate the concentrations of both essential and non-essential elements in the breast milk of lactating mothers from Tehran, Iran, during the colostrum period. Neutron activation analysis (NAA) was used to measure the element concentrations. Additionally, the study assessed how these element concentrations were influenced by maternal factors such as age and economic status. Breast milk samples were collected from 95 lactating mothers, aged 18 to 41, during the early lactation phase, specifically within the colostrum period (2-7 days postpartum). The colostrum milk samples were freeze-dried, powdered, and irradiated at the Tehran Research Reactor for neutron activation analysis (NAA). This method was used to measure the concentrations of essential elements-calcium (Ca), potassium (K), sodium (Na), chlorine (Cl), and iodine (I)-as well as non-essential elements-aluminum (Al), bromine (Br), and rubidium (Rb). Descriptive statistics, including mean, median, maximum, minimum, and standard deviation, were calculated for each element. Statistical analyses, such as Pearson's correlation, were performed to assess relationships between the concentrations of various elements. Additionally, t-tests and p-values were employed to evaluate differences in element levels across maternal age groups (17-34 years vs. 35-45 years) and economic status (high/middle vs. low). The mean concentrations of the elements in dry breast milk powder samples were: Al = 6.9 mg/kg, Br = 11.9 mg/kg, Ca = 2.757 mg/g, Cl = 7.836 mg/g, I = 1.22 mg/kg, K = 5.853 mg/g, Na = 4.932 mg/g, and Rb = 3.69 mg/kg. Significant correlations were found between element pairs, such as Na-Cl, Br-Cl, Na-Br, Rb-K, and I-Cl. Maternal age significantly influenced bromine concentrations, with older mothers showing 22% higher Br levels (p = 0.038), while calcium levels were 15% lower but not statistically significant (p = 0.20). Maternal economic status significantly impacted calcium and potassium concentrations, with higher levels observed in mothers from better economic conditions (p = 0.02 and p = 0.025, respectively). This study highlights the elemental composition of breast milk samples of lactating mothers in Tehran and shows that maternal factors, such as age and economic status, can significantly influence the concentrations of specific elements in breast milk.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142667369","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}

{"title":"Copper Dysmetabolism is Connected to Epithelial-Mesenchymal Transition: A Pilot Study in Colorectal Cancer Patients.","authors":"Rosanna Squitti, Vincenzo Tondolo, Amit Pal, Gianluca Rizzo, Samanta Arijit, Hoque Mehboob, Laura di Veroli, Piera Catalano, Marco Della Ventura, Gioia Mastromoro, Luisa Rossi, Mauro Rongioletti, Anastasia De Luca","doi":"10.1007/s12011-024-04440-w","DOIUrl":"10.1007/s12011-024-04440-w","url":null,"abstract":"<p><p>Colorectal cancer (CRC) is among the most diagnosed cancers worldwide, whose risk of mortality is associated with the development of metastases to the liver, lungs, and peritoneum. Of note, CRC is highly dependent on copper to sustain its proliferation and aggressiveness. Copper acts not only as a pivotal cofactor for several cuproproteins but also as an allosteric modulator of kinases essential to fulfill the epithelial-to-mesenchymal-transition (EMT), the main mechanism driving cancer cell spreading. System biology identified the APP and SOD1 genes among the top 10 genes shared between CRC and copper metabolism, as confirmed by the upregulation of the protein/mRNA levels of APP observed in CRC tissues. The significant increase of copper found in the sera of CRC patients was paralleled by a strong reduction of copper in the CRC tissues, in agreement with the decreased level of the high-affinity copper transporter CTR1 mRNA (SLC31A1) and LOXL2. As expected, in CRC tissues the mesenchymal marker fibronectin was significantly increased, whereas vimentin and vinculin protein levels were decreased compared to adjacent healthy mucosa. Interestingly, correlation analysis showed an interconnection between vinculin and both CCS and APP. A positive correlation was also observed between APP mRNA and both CDH1 and SOD1 mRNAs. Overall, we demonstrate a correlation between cell copper imbalance and CRC progression via EMT. The results obtained lay the scientific basis for further investigation to describe the kinetics of copper dysregulation during CRC progression and to identify the main cuproproteins involved in the modulation of EMT.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142667316","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}

{"title":"Copper Exposure Destroys the Integrity of the Blood-Testis Barrier (BTB) Through p38 MAPK-Meditated Autophagy Pathways.","authors":"Huidan Deng, Yanbin Lou, Ran He, Junliang Deng, Yanqiu Zhu, Xiaoli Wu, Hongrui Guo","doi":"10.1007/s12011-024-04449-1","DOIUrl":"https://doi.org/10.1007/s12011-024-04449-1","url":null,"abstract":"<p><p>Copper (Cu) is an essential trace element for living organisms. However, excessive exposure to Cu is harmful to male fertility. But the precise mechanisms are still unknown. The blood-testis barrier (BTB), an important testicular structure composed of connections between Sertoli cells, is the target of reproductive toxicity induced by various environmental contaminants. In this study, we found an increase in sperm malformation rates as well as testicular histopathology abnormalities after exposure to Cu. The BTB integrity assay findings showed that Cu induced BTB degradation. Also, the expression of BTB-related proteins such as the gap junction (GJ) and tight junction (TJ) in the mouse testis and Sertoli cells (TM4) decreased after intake of high Cu. Next, to study the involvement of the p38 MAPK signaling pathway in Cu-mediated BTB degradation, the p38 inhibitor (SB203580) was co-treated with Cu in TM4 cells; the results showed that the p38 inhibitor blocked autophagy and alleviated Cu-induced BTB impairment. Furthermore, we treated the cells with an autophagy inhibitor in combination with Cu, and it was discovered that inhibiting autophagy also prevented Cu-induced BTB impairment. These results suggest that Cu destroys the BTB instruction and is dependent on the p38 MAPK signaling pathway.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142646904","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}

{"title":"Activating PPARβ/δ-Mediated Fatty Acid β-Oxidation Mitigates Mitochondrial Dysfunction Co-induced by Environmentally Relevant Levels of Molybdenum and Cadmium in Duck Kidneys.","authors":"Jiamei Zhu, Gaohui Nie, Xueyan Dai, Dianyun Wang, ShanXin Li, Caiying Zhang","doi":"10.1007/s12011-024-04450-8","DOIUrl":"https://doi.org/10.1007/s12011-024-04450-8","url":null,"abstract":"<p><p>Cadmium (Cd) and high molybdenum (Mo) pose deleterious effects on health. Prior studies have indicated that exposure to Mo and Cd leads to damage in duck kidneys, but limited studies have explored this damage from the perspective of fatty acid metabolism. In this study, 40 healthy 8-day-old ducks were randomly assigned to four groups and fed a basic diet containing Cd (4 mg/kg Cd) or Mo (100 mg/kg Mo) or both. Kidney tissues were harvested on the 16th week. Results demonstrated that Cd and/or Mo inhibited mitochondrial fatty acid β-oxidation and disrupted mitochondrial dynamics, along with significant suppression of peroxisome proliferator-activated receptor β/δ (PPARβ/δ) protein in duck kidneys. In vitro study, duck renal tubular epithelial cells were exposed for 12 h to either Mo (480 μM Mo), Cd (2.5 μM Cd), and GW0742 (0.3 μM, a potent agonist of PPARβ/δ) alone or in combination. The results demonstrated that Cd and/or Mo led to marked fatty acid oxidation deficiency and mitochondrial dysfunction and that PPARβ/δ protein was involved in the process. Altogether, this study found that activating PPARβ/δ-mediated fatty acid β-oxidation mitigates mitochondrial dysfunction co-induced by Mo and Cd in duck kidneys.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142638342","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}

{"title":"Therapeutic Dose of Zinc Aspartate and Zinc Citrate Attenuates Disease Activity Indices in Rheumatoid Arthritis.","authors":"Mohammad Hasan, Pooja Yadav, Mairaj Ahmed Ansari, Shakir Ali, Haider A Khan","doi":"10.1007/s12011-024-04439-3","DOIUrl":"https://doi.org/10.1007/s12011-024-04439-3","url":null,"abstract":"<p><p>Zinc aspartate and zinc citrate have been used as zinc supplements in different health conditions. Taking into consideration their anti-inflammatory, immunomodulatory, anti-oxidant and antimicrobial properties, the present study has been designed to analyse the effect of zinc aspartate and zinc citrate treatment at therapeutic dose level on disease severity index, haematological, serological, antimicrobial and radiological markers of rheumatoid arthritis in Wistar rats. Bactericidal potential of the two organic zinc compounds was analysed in vitro in clinically isolated Escherichia coli. Arthritis was induced in male Wistar rats by intradermal injection of an emulsion containing collagen type II and Complete Freund's Adjuvant (CFA) containing 1 mg mL^-1 Mycobacterium tuberculosis H37Ra. Zinc aspartate and zinc citrate were orally administered after the onset of the disease for 4 weeks. Ameliorative effect of zinc aspartate and zinc citrate was evaluated by analysing indices of severity and disease activity markers of rheumatoid arthritis. The liver and kidney function tests were performed to evaluate any possible adverse effect of compounds. Antimicrobial activity of the zinc compounds was assessed in clinically isolated E. coli by MTT assay. Zinc aspartate and zinc citrate equivalent to a therapeutic dose of 50 mg/day of elemental zinc attenuated the clinical characteristic of rheumatoid arthritis in the animal model of arthritis, collagen-induced arthritis (CIA). Both zinc salts also exhibited antimicrobial effects against E. coli. The selected dose of zinc aspartate and zinc citrate showed no adverse effects in treated rats. This study highlights the potentiality of zinc compounds as antiarthritic agents and also point to its preventive effects on microbial growth that has been observed in rheumatoid arthritis patients due to their increased sensitivity for bacterial infection.</p>","PeriodicalId":8917,"journal":{"name":"Biological Trace Element Research","volume":" ","pages":""},"PeriodicalIF":3.4,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142613948","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}