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Nauroze T, Ali S, Andleeb S, Ara C, Kanwal L, Mumtaz S, Summer M, Ullah R. Quantitative assessment of Nigella sativa and conjugated Silver Nanoparticles against hexavalent chromium toxic effects on sperm function. Toxicon 2024:108102. [PMID: 39277110 DOI: 10.1016/j.toxicon.2024.108102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 09/06/2024] [Accepted: 09/11/2024] [Indexed: 09/17/2024]
Abstract
BACKGROUND Infertility has been observed as one of the major issues in humans, one known risk factor is heavy metals. METHODS The main focus of the present research is to assess the toxic effect of hexavalent chromium (Cr (VI)) on sperm and its mitigation by Nigella sativa seed extract (NS) and its conjugated silver nanoparticles (NS +NP). In the present study, we administered 1.5 mg/kg body of Cr (VI) orally in mice for 60 days to induce toxicity in testes and effect on sperm production and motility in male mice. NS and NS + NP (50 mg/kg body weight) were administered to evaluate protective action against Cr (VI). The sperm were analyzed by computer-assisted semen analysis (CASA) and chromium concentration in testicular tissue was measured via the atomic absorption spectrophotometer. RESULTS The CASA analysis showed that Cr (VI) was directly linked with a decline in sperm concentration, motility, distance, velocity, straightness, and head beat frequency attributes. However, the administration of Nigella sativa seed extract (NS) and its green synthesized silver nanoparticles (NS + NP) improved sperm concentration, motility, distance, velocity, straightness, and head beat frequency. The chromium content in the testes of Cr-exposed animals significantly increased, which negatively affected sperm parameters. However, Nigella sativa and Nigella sativa conjugated silver nanoparticles helped in the removal of Cr content from testes hence improving the sperm parameters in exposed mice. CONCLUSION The decrease in Cr concentration improved sperm quality and quantity, improving male fertility.
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Affiliation(s)
- Tooba Nauroze
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, Government College University, Lahore,54000, Pakistan; Department of Zoology, University of Education, Lahore, Pakistan
| | - Shaukat Ali
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, Government College University, Lahore,54000, Pakistan.
| | - Shagufta Andleeb
- Department of Zoology, University of Education, Lahore, Pakistan
| | - Chaman Ara
- Institute of Zoology, University of the Punjab, Lahore, Pakistan
| | - Lubna Kanwal
- Department of Zoology, University of Okara, Okara, Pakistan
| | - Samaira Mumtaz
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, Government College University, Lahore,54000, Pakistan
| | - Muhammad Summer
- Medical Toxicology and Biochemistry Laboratory, Department of Zoology, Government College University, Lahore,54000, Pakistan
| | - Rizwan Ullah
- Department of Zoology, Mirpur University of Science and Technology (MUST), Mirpur -10250, AJK, Pakistan
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Vincent JB. Is chromium(III) pharmacologically relevant? An update focused on studies with diabetic rodent models. J Trace Elem Med Biol 2024; 84:127453. [PMID: 38653006 DOI: 10.1016/j.jtemb.2024.127453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Revised: 03/18/2024] [Accepted: 04/12/2024] [Indexed: 04/25/2024]
Abstract
A decade ago, the author assessed the status of chromium as the trivalent ion as an essential element and as a therapeutic agent based on rodent studies for this journal. The current review was undertaken to update considerations regarding the status of chromium, focusing on studies of Cr supplementation of diabetic rodent models over the last decade. Cr can no longer be considered an essential trace element for humans. Observed effects of Cr on rodent models of insulin resistance and diabetes are best interpreted in terms of a pharmacological role for Cr. The review of studies on the effects of Cr on rat models of diabetes is updated, and the results continue to suggest Cr increases insulin sensitivity in peripheral tissues of the rodent models. The lack of effects in human studies may stem from humans receiving a comparably smaller dose than the rodent models. However, given the different responses to Cr in the rodent models, humans could potentially have different responses to Cr. Recent studies primary utilizing rodents suggest two potential complementary but also contradictory modes of action for Cr(III) at a molecular level.
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Affiliation(s)
- John B Vincent
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, AL 35487-0336, USA.
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Toyoda JH, Martino J, Speer RM, Meaza I, Lu H, Williams AR, Bolt AM, Kouokam JC, Aboueissa AEM, Wise JP. Hexavalent Chromium Targets Securin to Drive Numerical Chromosome Instability in Human Lung Cells. Int J Mol Sci 2023; 25:256. [PMID: 38203427 PMCID: PMC10778806 DOI: 10.3390/ijms25010256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 12/14/2023] [Accepted: 12/15/2023] [Indexed: 01/12/2024] Open
Abstract
Hexavalent chromium [Cr(VI)] is a known human lung carcinogen with widespread exposure in environmental and occupational settings. Despite well-known cancer risks, the molecular mechanisms of Cr(VI)-induced carcinogenesis are not well understood, but a major driver of Cr(VI) carcinogenesis is chromosome instability. Previously, we reported Cr(VI) induced numerical chromosome instability, premature centriole disengagement, centrosome amplification, premature centromere division, and spindle assembly checkpoint bypass. A key regulator of these events is securin, which acts by regulating the cleavage ability of separase. Thus, in this study we investigated securin disruption by Cr(VI) exposure. We exposed human lung cells to a particulate Cr(VI) compound, zinc chromate, for acute (24 h) and prolonged (120 h) time points. We found prolonged Cr(VI) exposure caused marked decrease in securin levels and function. After prolonged exposure at the highest concentration, securin protein levels were decreased to 15.3% of control cells, while securin mRNA quantification was 7.9% relative to control cells. Additionally, loss of securin function led to increased separase activity manifested as enhanced cleavage of separase substrates; separase, kendrin, and SCC1. These data show securin is targeted by prolonged Cr(VI) exposure in human lung cells. Thus, a new mechanistic model for Cr(VI)-induced carcinogenesis emerges with centrosome and centromere disruption as key components of numerical chromosome instability, a key driver in Cr(VI) carcinogenesis.
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Affiliation(s)
- Jennifer H. Toyoda
- Wise Laboratory for Environmental and Genetic Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, USA (R.M.S.); (H.L.); (J.C.K.)
| | - Julieta Martino
- Wise Laboratory for Environmental and Genetic Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, USA (R.M.S.); (H.L.); (J.C.K.)
| | - Rachel M. Speer
- Wise Laboratory for Environmental and Genetic Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, USA (R.M.S.); (H.L.); (J.C.K.)
| | - Idoia Meaza
- Wise Laboratory for Environmental and Genetic Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, USA (R.M.S.); (H.L.); (J.C.K.)
| | - Haiyan Lu
- Wise Laboratory for Environmental and Genetic Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, USA (R.M.S.); (H.L.); (J.C.K.)
| | - Aggie R. Williams
- Wise Laboratory for Environmental and Genetic Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, USA (R.M.S.); (H.L.); (J.C.K.)
| | - Alicia M. Bolt
- Department of Pharmaceutical Sciences, The University of New Mexico College of Pharmacy, Albuquerque, NM 87131, USA;
| | - Joseph Calvin Kouokam
- Wise Laboratory for Environmental and Genetic Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, USA (R.M.S.); (H.L.); (J.C.K.)
| | | | - John Pierce Wise
- Wise Laboratory for Environmental and Genetic Toxicology, University of Louisville, 500 S Preston Street, Building 55A, Room 1422, Louisville, KY 40292, USA (R.M.S.); (H.L.); (J.C.K.)
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Moreira R, Martins AD, Alves MG, de Lourdes Pereira M, Oliveira PF. A Comprehensive Review of the Impact of Chromium Picolinate on Testicular Steroidogenesis and Antioxidant Balance. Antioxidants (Basel) 2023; 12:1572. [PMID: 37627567 PMCID: PMC10451325 DOI: 10.3390/antiox12081572] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
Low testosterone (T) levels are a major cause of male infertility, as this hormone is crucial for several processes throughout the entire male reproductive tract. Leydig cells (LC) produce T through testicular steroidogenesis. Disrupted LC function can hinder steroid production and fertility. Among the factors that affect steroidogenesis, endocrine-disrupting chemicals (EDCs) raise concerns, as they disturb hormonal signaling. Chromium is classified as an EDC, and its main forms are hexavalent (Cr(VI)) and trivalent chromium (Cr(III)). While Cr(III) is controversially regarded as an essential metal, its compound Cr(III) picolinate (CrPic3) is used as a nutritional supplement due to its antidiabetic and antioxidant properties. This review aims to identify the possible effects of CrPic3 on testicular steroidogenesis and thus, on male fertility. The detriments caused by CrPic3 in LC include the inhibition of enzymes involved in steroidogenesis, and, as in other cells, the induction of mutagenesis and apoptosis. Remarkably, CrPic3 impacts male fertility through the alteration of reactive oxygen species (ROS), T levels, and sperm parameters (sperm motility and abnormal sperm count). However, gaps and inconsistencies exist in the literature concerning its effects on male fertility. Thus, further research is imperative to comprehend the underlying mechanisms of CrPic3 in the physiological processes relevant to male fertility, ensuring the supplement's safety for use by men.
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Affiliation(s)
- Rúben Moreira
- Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (R.M.); (A.D.M.)
- LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana D. Martins
- Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (R.M.); (A.D.M.)
- LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Marco G. Alves
- Department of Medical Sciences and Institute of Biomedicine (iBiMED), University of Aveiro, 3810-193 Aveiro, Portugal
| | - Maria de Lourdes Pereira
- CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal;
- Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Pedro F. Oliveira
- Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (R.M.); (A.D.M.)
- LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
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Mezencev R, Gibbons C. Interactions between chromium species and DNA in vitro and their potential role in the toxicity of hexavalent chromium. Metallomics 2023; 15:mfad045. [PMID: 37491700 DOI: 10.1093/mtomcs/mfad045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/12/2023] [Indexed: 07/27/2023]
Abstract
Epidemiological and animal studies have supported the carcinogenicity of hexavalent chromium [Cr(VI)]; however, molecular changes responsible for the induction of cancer by Cr(VI) are not entirely understood. Numerous mechanistic studies suggested the role of oxidative stress and genotoxicity in Cr(VI)-mediated carcinogenesis; however, specific types of DNA damage have not yet been conclusively attributed to specific chromium species or other reactive byproducts generated in biological systems exposed to Cr(VI). Due to the remarkably complex chemistry and biological effects of chromium species generated through the intracellular reduction of Cr(VI), their relevance for Cr(VI)-mediated carcinogenesis has not yet been fully elucidated and continues to be a subject of ongoing discussions in the field. In this report, we describe a complex world of chromium species and their reactivity with DNA and other biologically relevant molecules in vitro to inform a more complete understanding of Cr(VI)-mediated toxicity. In addition, we discuss previous results in the context of in vitro models and analytical methods to reconcile some conflicting findings on the biological role of chromium species.
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Affiliation(s)
- R Mezencev
- Center for Public Health and Environmental Assessment, Office of Research and Development, US EPA, Washington, DC, USA
| | - C Gibbons
- Center for Public Health and Environmental Assessment, Office of Research and Development, US EPA, Washington, DC, USA
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Toman R, Psenkova M, Tancin V, Miskeje M. Mutagens in raw ewe milk in Orava region, northern Slovakia: metals. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:62259-62271. [PMID: 35604602 DOI: 10.1007/s11356-022-20871-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 05/12/2022] [Indexed: 06/15/2023]
Abstract
The aim of this work was to determine the concentrations of selected mutagenic elements (As, Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, and Se) in raw ewe milk from undisturbed environment in Orava region, northern Slovakia. There are possible sources of some of the analyzed metals which may be distributed from the metallurgical plants located in the Ostrava region, Czech Republic, and Katowice, Poland. In total, forty milk samples were analyzed in June and August using an inductively coupled plasma optical emission spectrometry. The differences in elements concentrations between the seasonal periods were not significant except of iron (p < 0.0001). The concentrations of most of the metals in ewe milk were low and under the permissible or recommended limits. However, arsenic and selenium concentrations were elevated and could pose a risk of the mutagenic effect, particularly in children. The frequency of element occurrence in June was as follows: Se > Fe > As > Cu > Mn > Ni > Co > Pb > Cr > Cd, and in August: Se > Fe = As > Cu > Mn > Pb > Co > Ni > Cr > Cd. The correlation analysis revealed very strong positive correlation between Cu:Pb (p < 0.05), very strong negative correlation between Fe:Se (p < 0.05). The strong correlations were also found between other elements. The present study showed that milk produced in the relatively undisturbed environment might contain various mutagenic elements. The relationships between the elements might result in the additive or synergistic effects of elements and increase the risk of their mutagenic effects even in low concentrations. Therefore, attention must be paid to the monitoring of metals in the areas where food sources destined especially for child nutrition are produced.
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Affiliation(s)
- Robert Toman
- Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic.
| | - Martina Psenkova
- Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Vladimir Tancin
- Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
| | - Michal Miskeje
- Slovak University of Agriculture, Tr. A. Hlinku 2, 94976, Nitra, Slovak Republic
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Flamme M, Levi-Acobas F, Hensel S, Naskar S, Röthlisberger P, Sarac I, Gasser G, Müller J, Hollenstein M. Enzymatic Construction of Artificial Base Pairs: The Effect of Metal Shielding. Chembiochem 2020; 21:3398-3409. [PMID: 32673442 DOI: 10.1002/cbic.202000402] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 07/16/2020] [Indexed: 12/12/2022]
Abstract
Th formation of metal base pairs is a versatile method for the introduction of metal cations into nucleic acids that has been used in numerous applications including the construction of metal nanowires, development of energy, charge-transfer devices and expansion of the genetic alphabet. As an alternative, enzymatic construction of metal base pairs is an alluring strategy that grants access to longer sequences and offers the possibility of using such unnatural base pairs (UBPs) in SELEX experiments for the identification of functional nucleic acids. This method remains rather underexplored, and a better understanding of the key parameters in the design of efficient nucleotides is required. We have investigated the effect of methylation of the imidazole nucleoside (dImnMe TP) on the efficiency of the enzymatic construction of metal base pairs. The presence of methyl substituents on dImTP facilitates the polymerase-driven formation of dIm4Me -AgI -dIm and dIm2Me TP-CrIII -dIm base pairs. Steric factors rather than the basicity of the imidazole nucleobase appear to govern the enzymatic formation of such metal base pairs. We also demonstrate the compatibility of other metal cations rarely considered in the construction of artificial metal bases by enzymatic DNA synthesis under both primer extension reaction and PCR conditions. These findings open up new directions for the design of nucleotide analogues for the development of metal base pairs.
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Affiliation(s)
- Marie Flamme
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724, Paris Cedex 15, France.,Université Paris Descartes, Sorbonne Paris Cité, 12 rue de l'École de Médecine, 75006, Paris, France.,Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 11, rue Pierre et Marie Curie, 75005, Paris, France
| | - Fabienne Levi-Acobas
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724, Paris Cedex 15, France
| | - Susanne Hensel
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstrasse 30, 48149, Münster, Germany
| | - Shuvankar Naskar
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstrasse 30, 48149, Münster, Germany
| | - Pascal Röthlisberger
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724, Paris Cedex 15, France
| | - Ivo Sarac
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724, Paris Cedex 15, France
| | - Gilles Gasser
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Laboratory for Inorganic Chemical Biology, 11, rue Pierre et Marie Curie, 75005, Paris, France
| | - Jens Müller
- Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstrasse 30, 48149, Münster, Germany
| | - Marcel Hollenstein
- Institut Pasteur, Department of Structural Biology and Chemistry, Laboratory for Bioorganic Chemistry of Nucleic Acids, CNRS UMR3523, 28, rue du Docteur Roux, 75724, Paris Cedex 15, France
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