101
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Kim K, Hyeon J, Lee SA, Kwon SO, Lee H, Keum N, Lee JK, Park SM. Role of Total, Red, Processed, and White Meat Consumption in Stroke Incidence and Mortality: A Systematic Review and Meta-Analysis of Prospective Cohort Studies. J Am Heart Assoc 2017; 6:JAHA.117.005983. [PMID: 28855166 PMCID: PMC5634267 DOI: 10.1161/jaha.117.005983] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Background Previous meta‐analyses on meat intake and risk of stroke did not report the effect of white meat (poultry meat, excluding fish) and did not examine stroke incidence and mortality separately. We aimed to investigate the relationship of total (red and processed meat), red (unprocessed or fresh red meat), and processed (processed red meat) consumption along with white meat on risk of stroke incidence and mortality. Methods and Results Articles were identified from databases and reference lists of relevant studies up to October 28, 2016. We selected prospective cohort studies on meat consumption specified by types of meat and stroke incidence and mortality reporting relative risks and 95% confidence intervals. The pooled relative risk was estimated using the random‐effects model. Based on the inclusion criteria, 10 articles containing 15 studies (5 articles with 7 studies including 9522 cases of stroke incidence and 254 742 participants and 5 articles with 8 studies containing 12 999 cases of stroke mortality and 487 150 participants) were selected for quantitative synthesis. The pooled relative risks (95% confidence intervals) for total, red, processed and white meat consumption and total stroke incidence were 1.18 (1.09–1.28), 1.11 (1.03–1.20), 1.17 (1.08–1.25), and 0.87 (0.78–0.97), respectively. Total meat consumption (0.97 [0.85–1.11]) and red meat consumption 0.87 (0.64–1.18) were not significantly associated with stroke‐related death. Conclusions The relationship between meat intake and risk of stroke may differ by type of meat. Recommendations for replacing proportions of red and processed meats to white meat for the prevention of stroke may be considered in clinical practice.
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Affiliation(s)
- Kyuwoong Kim
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea
| | - Junghyeon Hyeon
- Department of Family Medicine, College of Medicine, Seoul National University, Seoul, Korea
| | - Sang Ah Lee
- Department of Preventive Medicine, College of Medicine, Kangwon National University, Gangwon-do, Korea
| | - Sung Ok Kwon
- Department of Preventive Medicine, College of Medicine, Kangwon National University, Gangwon-do, Korea
| | - Hyejin Lee
- Department of Family Medicine, College of Medicine, Seoul National University, Seoul, Korea
- Division of Healthcare Technology Development, Bureau of Health Industry, Ministry of Health and Welfare, Sejong-si, Korea
| | - NaNa Keum
- Department of Nutrition, T.H Chan School of Public Health, Harvard University, Boston, MA
| | - Jong-Koo Lee
- JW Lee Center for Global Medicine, College of Medicine, Seoul National University, Seoul, Korea
| | - Sang Min Park
- Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea
- Department of Family Medicine, College of Medicine, Seoul National University, Seoul, Korea
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102
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Eid R, Zhou DR, Arab NTT, Boucher E, Young PG, Mandato CA, Greenwood MT. Heterologous expression of anti-apoptotic human 14-3-3β/α enhances iron-mediated programmed cell death in yeast. PLoS One 2017; 12:e0184151. [PMID: 28854230 PMCID: PMC5576682 DOI: 10.1371/journal.pone.0184151] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Accepted: 08/20/2017] [Indexed: 01/06/2023] Open
Abstract
The induction of Programmed Cell Death (PCD) requires the activation of complex responses involving the interplay of a variety of different cellular proteins, pathways, and processes. Uncovering the mechanisms regulating PCD requires an understanding of the different processes that both positively and negatively regulate cell death. Here we have examined the response of normal as well as PCD resistant yeast cells to different PCD inducing stresses. As expected cells expressing the pro-survival human 14-3-3β/α sequence show increased resistance to numerous stresses including copper and rapamycin. In contrast, other stresses including iron were more lethal in PCD resistant 14-3-3β/α expressing cells. The increased sensitivity to PCD was not iron and 14-3-3β/α specific since it was also observed with other stresses (hydroxyurea and zinc) and other pro-survival sequences (human TC-1 and H-ferritin). Although microscopical examination revealed little differences in morphology with iron or copper stresses, cells undergoing PCD in response to high levels of prolonged copper treatment were reduced in size. This supports the interaction some forms of PCD have with the mechanisms regulating cell growth. Analysis of iron-mediated effects in yeast mutant strains lacking key regulators suggests that a functional vacuole is required to mediate the synergistic effects of iron and 14-3-3β/α on yeast PCD. Finally, mild sub-lethal levels of copper were found to attenuate the observed inhibitory effects of iron. Taken together, we propose a model in which a subset of stresses like iron induces a complex process that requires the cross-talk of two different PCD inducing pathways.
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Affiliation(s)
- Rawan Eid
- Department of Chemistry and Chemical Engineering, Royal Military College, Kingston, Ontario, Canada
- Department of Biology, Queen's University, Kingston, Ontario, Canada
| | - David R. Zhou
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec, Canada
| | - Nagla T. T. Arab
- Department of Chemistry and Chemical Engineering, Royal Military College, Kingston, Ontario, Canada
- Department of Biology, Queen's University, Kingston, Ontario, Canada
| | - Eric Boucher
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec, Canada
| | - Paul G. Young
- Department of Biology, Queen's University, Kingston, Ontario, Canada
| | - Craig A. Mandato
- Department of Anatomy and Cell Biology, McGill University, Montreal, Quebec, Canada
| | - Michael T. Greenwood
- Department of Chemistry and Chemical Engineering, Royal Military College, Kingston, Ontario, Canada
- * E-mail:
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103
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Myricetin ameliorates scopolamine-induced memory impairment in mice via inhibiting acetylcholinesterase and down-regulating brain iron. Biochem Biophys Res Commun 2017; 490:336-342. [DOI: 10.1016/j.bbrc.2017.06.045] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Accepted: 06/11/2017] [Indexed: 11/23/2022]
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104
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Takaoka T, Shibamoto Y, Matsuo M, Sugie C, Murai T, Ogawa Y, Miyakawa A, Manabe Y, Kondo T, Nakajima K, Okazaki D, Tsuchiya T. Biological effects of hydrogen peroxide administered intratumorally with or without irradiation in murine tumors. Cancer Sci 2017. [PMID: 28627761 PMCID: PMC5581514 DOI: 10.1111/cas.13302] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Despite insufficient laboratory data, radiotherapy after intratumoral injection of hydrogen peroxide (H2O2) is increasingly being used clinically for radioresistant tumors. Especially, this treatment might become an alternative definitive treatment for early and advanced breast cancer in patients who refuse any type of surgery. The purpose of this study was to investigate the biological effects and appropriate combination methods of irradiation and H2O2in vivo. SCCVII tumor cells transplanted into the legs of C3H/HeN mice were used. Chronological changes of intratumoral distribution of oxygen bubbles after injection of H2O2 were investigated using computed tomography. The effects of H2O2 alone and in combination with single or five‐fraction irradiation were investigated using a growth delay assay. The optimal timing of H2O2 injection was investigated. Immunostaining of tumors was performed using the hypoxia marker pimonidazole. Oxygen bubbles decreased gradually and almost disappeared after 24 h. Administration of H2O2 produced 2–3 days’ tumor growth delay. Tumor regrowth was slowed further when H2O2 was injected before irradiation. The group irradiated immediately after H2O2 injection showed the longest tumor growth delay. Dose‐modifying factors were 1.7–2.0 when combined with single irradiation and 1.3–1.5 with fractionated irradiation. Pimonidazole staining was weaker in tumors injected with H2O2. H2O2 injection alone had modest antitumor effects. Greater tumor growth delays were demonstrated by combining irradiation and H2O2 injection. The results of the present study could serve as a basis for evaluating results of various clinical studies on this treatment.
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Affiliation(s)
- Taiki Takaoka
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yuta Shibamoto
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Masayuki Matsuo
- Department of Radiology, Gifu University School of Medicine, Gifu, Japan
| | - Chikao Sugie
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Taro Murai
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yasutaka Ogawa
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akifumi Miyakawa
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yoshihiko Manabe
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takuhito Kondo
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Koichiro Nakajima
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Dai Okazaki
- Department of Radiology, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takahiro Tsuchiya
- Department of Radiology, Nagoya City University Hospital, Nagoya, Japan
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105
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McLellan NL, Manderville RA. Toxic mechanisms of microcystins in mammals. Toxicol Res (Camb) 2017; 6:391-405. [PMID: 30090507 PMCID: PMC6060792 DOI: 10.1039/c7tx00043j] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 04/21/2017] [Indexed: 01/08/2023] Open
Abstract
Microcystins, such as microcystin-leucine arginine (MC-LR), are some of the most toxic and prevalent cyanotoxins produced by cyanobacteria in freshwater and saltwater algal blooms worldwide. Acute and chronic exposures to microcystins are primarily known to cause hepatotoxicity; cellular damage and genotoxicity within mammalian livers. However, in vivo studies indicate that similar damage may occur in other mammalian organs and tissues, such as the kidney, heart, reproductive systems, and lungs - particularly following chronic low-dose exposures. Mechanisms of toxicity of mycrocystins are reviewed herein; including cellular uptake, interaction with protein phosphatases PP1 and PP2A, cytoskeletal effects, formation of oxidative stress and induction of apoptosis. In general, the mode of action of toxicity by MCs in mammalian organs are similar to those that have been observed in liver tissues. A comprehensive understanding of the toxic mechanisms of microcystins in mammalian tissues and organs will assist in the development of risk assessment approaches to public health protection strategies and the development of robust drinking water policies.
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Affiliation(s)
- Nicole L McLellan
- School of Environmental Sciences , University of Guelph , Guelph , Ontario N1G 2W1 , Canada
| | - Richard A Manderville
- Department of Chemistry and Toxicology , University of Guelph , Guelph , Ontario N1G 2W1 , Canada . ; ; Tel: +1-519-824-4120, x53963
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106
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Gómez-Garzón C, Hernández-Santana A, Dussán J. A genome-scale metabolic reconstruction of Lysinibacillus sphaericus unveils unexploited biotechnological potentials. PLoS One 2017; 12:e0179666. [PMID: 28604819 PMCID: PMC5467902 DOI: 10.1371/journal.pone.0179666] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 06/01/2017] [Indexed: 01/25/2023] Open
Abstract
The toxic lineage (TL) of Lysinibacillus sphaericus has been extensively studied because of its potential biotechnological applications in biocontrol of mosquitoes and bioremediation of toxic metals. We previously proposed that L. sphaericus TL should be considered as a novel species based on a comparative genomic analysis. In the current work, we constructed the first manually curated metabolic reconstruction for this species on the basis of the available genomes. We elucidated the central metabolism of the proposed species and, beyond confirming the reported experimental evidence with genomic a support, we found insights to propose novel applications and traits to be considered in further studies. The strains belonging to this lineage exhibit a broad repertory of genes encoding insecticidal factors, some of them remain uncharacterized. These strains exhibit other unexploited biotechnological important traits, such as lactonases (quorum quenching), toxic metal resistance, and potential for aromatic compound degradation. In summary, this study provides a guideline for further research aimed to implement this organism in biocontrol and bioremediation. Similarly, we highlighted the unanswered questions to be responded in order to gain a deeper understanding of the L. sphaericus TL biology.
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Affiliation(s)
- Camilo Gómez-Garzón
- Centro de investigaciones microbiológicas (CIMIC), Universidad de los Andes, Bogotá, Colombia
| | | | - Jenny Dussán
- Centro de investigaciones microbiológicas (CIMIC), Universidad de los Andes, Bogotá, Colombia
- * E-mail:
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107
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Irarrázaval S, Allard C, Campodónico J, Pérez D, Strobel P, Vásquez L, Urquiaga I, Echeverría G, Leighton F. Oxidative Stress in Acute Hypobaric Hypoxia. High Alt Med Biol 2017; 18:128-134. [DOI: 10.1089/ham.2016.0119] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Sebastián Irarrázaval
- Department of Orthopedic Surgery, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudio Allard
- Center for Molecular Nutrition and Chronic Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Juan Campodónico
- School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Druso Pérez
- Center for Molecular Nutrition and Chronic Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo Strobel
- Center for Molecular Nutrition and Chronic Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Luis Vásquez
- Center for Molecular Nutrition and Chronic Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Inés Urquiaga
- Center for Molecular Nutrition and Chronic Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Guadalupe Echeverría
- Center for Molecular Nutrition and Chronic Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Federico Leighton
- Center for Molecular Nutrition and Chronic Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
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108
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Wiest NE, Tomkinson AE. Optimization of Native and Formaldehyde iPOND Techniques for Use in Suspension Cells. Methods Enzymol 2017. [PMID: 28645366 DOI: 10.1016/bs.mie.2017.03.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The isolation of proteins on nascent DNA (iPOND) technique developed by the Cortez laboratory allows a previously unparalleled ability to examine proteins associated with replicating and newly synthesized DNA in mammalian cells. Both the original, formaldehyde-based iPOND technique and a more recent derivative, accelerated native iPOND (aniPOND), have mostly been performed in adherent cell lines. Here, we describe modifications to both protocols for use with suspension cell lines. These include cell culture, pulse, and chase conditions that optimize sample recovery in both protocols using suspension cells and several key improvements to the published aniPOND technique that reduce sample loss, increase signal to noise, and maximize sample recovery. Additionally, we directly and quantitatively compare the iPOND and aniPOND protocols to test the strengths and limitations of both. Finally, we present a detailed protocol to perform the optimized aniPOND protocol in suspension cell lines.
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Affiliation(s)
- Nathaniel E Wiest
- University of New Mexico School of Medicine, Albuquerque, NM, United States
| | - Alan E Tomkinson
- University of New Mexico School of Medicine, Albuquerque, NM, United States.
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109
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Lashgari N, Badiei A, Mohammadi Ziarani G. A novel functionalized nanoporous SBA-15 as a selective fluorescent sensor for the detection of multianalytes (Fe 3+ and Cr 2 O 7 2 − ) in water. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS 2017; 103:238-248. [DOI: 10.1016/j.jpcs.2016.11.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
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110
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111
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Bothra S, Upadhyay Y, Kumar R, Sahoo SK. Applications of vitamin B6 cofactor pyridoxal 5'-phosphate and pyridoxal 5'-phosphate crowned gold nanoparticles for optical sensing of metal ions. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2017; 174:1-6. [PMID: 27865135 DOI: 10.1016/j.saa.2016.11.014] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2016] [Revised: 11/05/2016] [Accepted: 11/12/2016] [Indexed: 06/06/2023]
Abstract
Vitamin B6 cofactor pyridoxal 5'-phosphate (PLP) and PLP crowned gold nanoparticles (PLP-AuNPs) was applied for the optical chemosensing of metal ions in aqueous medium. PLP showed a visually detectable colour change from colourless to yellow and 'turn-off' fluorescence in the presence of Fe3+. The fluorescence intensity of PLP at 433nm was also blue-shifted and enhanced at 395nm upon addition of Al3+. When the PLP was functionalized over AuNPs surface, the wine red colour of PLP-AuNPs was turned to purplish-blue and the SPR band at ~525nm was red-shifted upon addition of Al3+, Cd2+ and Pb2+ due to the complexation-induced aggregation of nanoparticles. The developed sensing systems exhibited good selectivity and specificity for the detected analytes (Fe3+, Al3+, Cd2+ and Pb2+).
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Affiliation(s)
- Shilpa Bothra
- Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT), Surat 395007, India
| | - Yachana Upadhyay
- Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT), Surat 395007, India
| | - Rajender Kumar
- Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT), Surat 395007, India
| | - Suban K Sahoo
- Department of Applied Chemistry, S.V. National Institute of Technology (SVNIT), Surat 395007, India.
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112
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Deli CK, Fatouros IG, Paschalis V, Tsiokanos A, Georgakouli K, Zalavras A, Avloniti A, Koutedakis Y, Jamurtas AZ. Iron Supplementation Effects on Redox Status following Aseptic Skeletal Muscle Trauma in Adults and Children. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:4120421. [PMID: 28203319 PMCID: PMC5292163 DOI: 10.1155/2017/4120421] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Accepted: 11/24/2016] [Indexed: 01/05/2023]
Abstract
Exercise-induced skeletal muscle microtrauma is characterized by loss of muscle cell integrity, marked aseptic inflammatory response, and oxidative stress. We examined if iron supplementation would alter redox status after eccentric exercise. In a randomized, double blind crossover study, that was conducted in two cycles, healthy adults (n = 14) and children (n = 11) received daily either 37 mg of elemental iron or placebo for 3 weeks prior to and up to 72 h after an acute eccentric exercise bout. Blood was drawn at baseline, before exercise, and 72 h after exercise for the assessment of iron status, creatine kinase activity (CK), and redox status. Iron supplementation at rest increased iron concentration and transferrin saturation (p < 0.01). In adults, CK activity increased at 72 h after exercise, while no changes occurred in children. Iron supplementation increased TBARS at 72 h after exercise in both adults and children; no changes occurred under placebo condition. Eccentric exercise decreased bilirubin concentration at 72 h in all groups. Iron supplementation can alter redox responses after muscle-damaging exercise in both adults and children. This could be of great importance not only for healthy exercising individuals, but also in clinical conditions which are characterized by skeletal muscle injury and inflammation, yet iron supplementation is crucial for maintaining iron homeostasis. This study was registered at Clinicaltrials.gov Identifier: NCT02374619.
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Affiliation(s)
- Chariklia K. Deli
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly (I.RE.TE.TH), Trikala, Greece
- Center for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Ioannis G. Fatouros
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly (I.RE.TE.TH), Trikala, Greece
- Center for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Vassilis Paschalis
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly (I.RE.TE.TH), Trikala, Greece
- Center for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Athanasios Tsiokanos
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly (I.RE.TE.TH), Trikala, Greece
- Center for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Kalliopi Georgakouli
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly (I.RE.TE.TH), Trikala, Greece
- Center for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Athanasios Zalavras
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly (I.RE.TE.TH), Trikala, Greece
- Center for Research and Technology Hellas (CERTH), Thessaloniki, Greece
| | - Alexandra Avloniti
- School of Physical Education and Sport Science, Democritus University of Thrace, Komotini, Greece
| | - Yiannis Koutedakis
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly (I.RE.TE.TH), Trikala, Greece
- Center for Research and Technology Hellas (CERTH), Thessaloniki, Greece
- School of Sports, Performing Arts and Leisure, University of Wolverhampton, Wolverhampton, UK
| | - Athanasios Z. Jamurtas
- School of Physical Education and Sport Science, University of Thessaly, Trikala, Greece
- Institute for Research and Technology of Thessaly (I.RE.TE.TH), Trikala, Greece
- Center for Research and Technology Hellas (CERTH), Thessaloniki, Greece
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113
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Gómez-Oliván LM, Mendoza-Zenil YP, SanJuan-Reyes N, Galar-Martínez M, Ramírez-Durán N, Rodríguez Martín-Doimeadios RDC, Rodríguez-Fariñas N, Islas-Flores H, Elizalde-Velázquez A, García-Medina S, Pérez-Pastén Borja R. Geno- and cytotoxicity induced on Cyprinus carpio by aluminum, iron, mercury and mixture thereof. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 135:98-105. [PMID: 27721126 DOI: 10.1016/j.ecoenv.2016.09.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Revised: 09/29/2016] [Accepted: 09/30/2016] [Indexed: 06/06/2023]
Abstract
Metals such as Al, Fe and Hg are used in diverse anthropogenic activities. Their presence in water bodies is due mainly to domestic, agricultural and industrial wastewater discharges and constitutes a hazard for the organisms inhabiting these environments. The present study aimed to evaluate geno- and cytotoxicity induced by Al, Fe, Hg and the mixture of these metals on blood of the common carp Cyprinus carpio. Specimens were exposed to the permissible limits in water for human use and consumption according to the pertinent official Mexican norm [official Mexican norm NOM-127-SSA1-1994] Al (0.2mgL-1), Fe (0.3mgL-1), Hg (0.001mgL-1) and their mixture for 12, 24, 48, 72 and 96h. Biomarkers of genotoxicity (comet assay and micronucleus test) and cytotoxicity (caspase-3 activity and TUNEL assay) were evaluated. Significant increases relative to the control group (p<0.05) were observed in all biomarkers at all exposure times in all test systems; however, damage was greater when the metals were present as a mixture. Furthermore, correlations between metal concentrations and biomarkers of geno- and cytotoxicity were found only at certain exposure times. In conclusion, Al, Fe, Hg and the mixture of these metals induce geno- and cytotoxicity on blood of C. carpio.
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Affiliation(s)
- Leobardo Manuel Gómez-Oliván
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n. Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico.
| | - Youssef Paolo Mendoza-Zenil
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n. Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Nely SanJuan-Reyes
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n. Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Marcela Galar-Martínez
- Laboratorio de Toxicología Acuática, Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu s/n y Cerrada de Manuel Stampa, Col. Industrial Vallejo, C.P. 007700 México, D.F., Mexico.
| | - Ninfa Ramírez-Durán
- Laboratorio de Microbiología Médica y Ambiental de la Facultad de Medicina, Universidad Autónoma del Estado de México, Paseo Tollocan y Venustiano Carranza s/n. Col. Universidad, 50180 Toluca, Estado de México, Mexico
| | - Rosa Del Carmen Rodríguez Martín-Doimeadios
- Departamento de Química Analítica y Tecnología de los Alimentos, Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Avenida Carlos III s/n, E-45071 Toledo, Spain
| | - Nuria Rodríguez-Fariñas
- Departamento de Química Analítica y Tecnología de los Alimentos, Facultad de Ciencias Ambientales y Bioquímica, Universidad de Castilla-La Mancha, Avenida Carlos III s/n, E-45071 Toledo, Spain
| | - Hariz Islas-Flores
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n. Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Armando Elizalde-Velázquez
- Laboratorio de Toxicología Ambiental, Facultad de Química, Universidad Autónoma del Estado de México, Paseo Colón intersección Paseo Tollocan s/n. Col. Residencial Colón, 50120 Toluca, Estado de México, Mexico
| | - Sandra García-Medina
- Laboratorio de Toxicología Acuática, Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu s/n y Cerrada de Manuel Stampa, Col. Industrial Vallejo, C.P. 007700 México, D.F., Mexico
| | - Ricardo Pérez-Pastén Borja
- Laboratorio de Toxicología Acuática, Departamento de Farmacia, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Unidad Profesional Adolfo López Mateos, Av. Wilfrido Massieu s/n y Cerrada de Manuel Stampa, Col. Industrial Vallejo, C.P. 007700 México, D.F., Mexico
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Liu CX, Lin ZX, Zhou AM. Design, synthesis, cytotoxicities and DNA cleavage activities of dibenzoxepine and isoquinoline derivatives starting from dehydroabietylamine. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2016; 18:1169-1177. [PMID: 27696913 DOI: 10.1080/10286020.2016.1232251] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2015] [Accepted: 08/26/2016] [Indexed: 06/06/2023]
Abstract
A series of novel hexahydrodibenzoxepine and quinazoline derivatives were designed and synthesized starting from dehydroabietylamine. The cytotoxicities of the compounds against L02 and HepG2 cell lines were investigated. Meanwhile, the plasmid DNA (Escherichia coli) cleavage of several heterocyclic derivatives was studied. These compounds exhibit remarkable activities on plasmid DNA pBR322. Our study provides useful information for developing new and more potent antitumor agents.
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Affiliation(s)
- Chao-Xiang Liu
- a Department of Pharmacy , Bozhou Vocational and Technical College , Bozhou 236800 , China
| | - Zhong-Xiang Lin
- b College of Chemical Engineering , Nanjing Forestry University , Nanjing 210037 , China
| | - Ai-Min Zhou
- c Department of Chemistry , Cleveland State University , Cleveland , OH 44115 , USA
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115
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Afshani J, Badiei A, Jafari M, Shayesteh A, Karimi M, Lashgari N, Mohammadi Ziarani G. A single optical sensor with high sensitivity for detection of Fe 3+ and CN − ions. JOURNAL OF LUMINESCENCE 2016; 179:463-468. [DOI: 10.1016/j.jlumin.2016.07.038] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
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116
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Gan L, Yang B, Mei H. The effect of iron dextran on the transcriptome of pig hippocampus. Genes Genomics 2016. [DOI: 10.1007/s13258-016-0469-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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117
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Pang Y, Qin G, Wu L, Wang X, Chen T. Artesunate induces ROS-dependent apoptosis via a Bax-mediated intrinsic pathway in Huh-7 and Hep3B cells. Exp Cell Res 2016; 347:251-60. [DOI: 10.1016/j.yexcr.2016.06.012] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Revised: 06/07/2016] [Accepted: 06/16/2016] [Indexed: 10/21/2022]
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118
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Lin YL, Sung R, Sung K. Bis(rhodamine)-based polyether type of turn-on fluorescent sensors: selectively sensing Fe(III). Tetrahedron 2016. [DOI: 10.1016/j.tet.2016.07.077] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Kerasioti E, Stagos D, Tzimi A, Kouretas D. Increase in antioxidant activity by sheep/goat whey protein through nuclear factor-like 2 (Nrf2) is cell type dependent. Food Chem Toxicol 2016; 97:47-56. [PMID: 27554596 DOI: 10.1016/j.fct.2016.08.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Revised: 07/30/2016] [Accepted: 08/18/2016] [Indexed: 12/17/2022]
Abstract
The aim of the present study was to investigate the molecular mechanisms through which sheep/goat whey protein exerts its antioxidant activity. Thus, it was examined whey protein's effects on the expression of transcription factor, nuclear factor-like 2 (Nrf2) and on the expression and activity of a number of antioxidant and phase II enzymes, superoxide dismutase (SOD), catalase (CAT), heme oxygenase 1 (HO-1), synthase glutamyl cysteine (GCS) and glutathione-s-transferase (GST), in muscle C2C12 and EA.hy926 endothelial cells. C2C12 and EA.hy926 cells were treated with sheep/goat whey protein (0.78 and 3.12 mg/ml) and incubated for 3, 6, 12, 18 and 24 h. Whey protein increased significantly the expression of Nrf2 only in EA.hy926 cells. Also, the expression of SOD, HO-1, CAT and the activity of SOD, CAT and GST were increased significantly in both cells types. The expression of GCS was increased significantly only in C2C12 cells. Sheep/goat whey protein was shown for the first time to exert its antioxidant activity through Nrf2-dependent mechanism in endothelial cells and Nrf2-independent mechanism in muscle cells. Thus, Nrf2 could be a target for food supplements containing whey protein in order to prevent oxidative stress damages and diseases related to endothelium.
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Affiliation(s)
- Efthalia Kerasioti
- Department of Biochemistry-Biotechnology, University of Thessaly, Larissa 41221, Greece.
| | - Dimitrios Stagos
- Department of Biochemistry-Biotechnology, University of Thessaly, Larissa 41221, Greece.
| | - Aggeliki Tzimi
- Department of Biochemistry-Biotechnology, University of Thessaly, Larissa 41221, Greece.
| | - Dimitrios Kouretas
- Department of Biochemistry-Biotechnology, University of Thessaly, Larissa 41221, Greece.
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120
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Shu XB, Zhang L, Huang J, Ji G. Relationship between iron overload and nonalcoholic fatty liver disease: An update. Shijie Huaren Xiaohua Zazhi 2016; 24:3398-3403. [DOI: 10.11569/wcjd.v24.i22.3398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
As a component of the multiple hits, iron overload plays an important role in the development of nonalcoholic fatty liver disease (NAFLD). Iron overload could affect glucose, lipid, energy metabolism and inflammatory reaction. This paper reviews the relationship between iron overload and nonalcoholic fatty liver disease, in order to clarify how and why iron overload influences the progression of NAFLD.
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121
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Bottari NB, Mendes RE, Baldissera MD, Bochi GV, Moresco RN, Leal ML, Morsch VM, Schetinger MR, Christ R, Gheller L, Marques ÉJ, Da Silva AS. Relation between iron metabolism and antioxidants enzymes and δ-ALA-D activity in rats experimentally infected by Fasciola hepatica. Exp Parasitol 2016; 165:58-63. [DOI: 10.1016/j.exppara.2016.03.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Revised: 02/16/2016] [Accepted: 03/12/2016] [Indexed: 12/14/2022]
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Abstract
PURPOSE OF REVIEW Metals play major roles in children's health and are associated with negative health outcomes via deficiency, overload, or toxicity. Constantly evolving analytical technology can provide new insight into how metal metabolism and exposure biology are intertwined in a range of biological matrices. RECENT FINDINGS Exposure can occur prenatally as many metals cross the placental barrier. The placenta is permeable to many metal species, some through tightly regulated transporters, and others because of a limited capacity for detoxification. Postbirth, metal exposure continues to exert long-term health effects, ranging from exposure to exogenous heavy metals, such as lead, to overload of otherwise essential metals, including manganese. Increasing evidence supports the existence of critical developmental windows when susceptibility to toxicants and nutritional deficiencies is highest. Elemental imaging technology provides microspatial information on metal uptake and retention across tissue architecture, which provides important insights into exposure and biologic response. SUMMARY Imaging the spatial distribution of elements, both essential and toxic, provides information that bulk measures cannot, including cell-specific distributions and timing of exposure.
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SALES SUELLENC, RIETZLER ARNOLAC, RIBEIRO MARCELAM. Arsenic toxicity to cladocerans isolated and associated with iron: implications for aquatic environments. ACTA ACUST UNITED AC 2016; 88 Suppl 1:539-48. [DOI: 10.1590/0001-3765201620140670] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 04/03/2015] [Indexed: 11/22/2022]
Abstract
ABSTRACT Arsenic is an ametal ubiquitous in nature and known by its high toxicity. Many studies have tried to elucidate the arsenic metabolism in the cell and its impact to plants, animals and human health. In aqueous phase, inorganic arsenic is more common and its oxidation state (As III and As V) depends on physical and chemical environmental conditions. The aim of this study was to evaluate toxicity of arsenic to Daphnia similis and Ceriodaphnia silvestrii, isolated and associated with iron. The results showed differences in toxicity of As III and As V to both species. Effective concentration (EC50) mean values were 0.45 mg L-1 (As III) and 0.54 mg L-1 (As V) for D. similis, and 0.44 mg L-1 (As III) and 0.69 mg L-1 (As V) for C. silvestrii. However, As V IC25 mean value was 0.59 mg L-1, indicating that C. silvestrii has mechanisms to reduce arsenic toxicity. On the other hand, when associated with iron at 0.02 and 2.00 mg L-1, EC50 values decreased for D. similis (0.34 and 0.38 mg L-1) as well as C. silvestrii (0.37 and 0.37 mg L-1), showing synergistic effect of these substances.
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124
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Deng M, Wang S, Liang C, Shang H, Jiang S. A FRET fluorescent nanosensor based on carbon dots for ratiometric detection of Fe3+ in aqueous solution. RSC Adv 2016. [DOI: 10.1039/c6ra02679f] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A highly selective and sensitive FRET ratiometric fluorescent nanosensor has been developed for detecting Fe3+ in aqueous solution and on test papers. It works based on a Fe3+-triggered FRET process between CDs and ring-opened rhodamine 6G.
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Affiliation(s)
- Mengyu Deng
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun
- P. R. China
| | - Sha Wang
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun
- P. R. China
| | - Chunshuang Liang
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun
- P. R. China
| | - Hongxing Shang
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun
- P. R. China
| | - Shimei Jiang
- State Key Laboratory of Supramolecular Structure and Materials
- Jilin University
- Changchun
- P. R. China
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Moon H, Park J, Tae J. Fluorescent Probes Based on Rhodamine Hydrazides and Hydroxamates. CHEM REC 2015; 16:124-40. [DOI: 10.1002/tcr.201500226] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2015] [Indexed: 12/15/2022]
Affiliation(s)
- Heejeong Moon
- Department of Chemistry; Yonsei University; Yonsei-ro 50 Seodaemun-ku Seoul 120-749 Republic of Korea
| | - Jinyoung Park
- Department of Chemistry; Yonsei University; Yonsei-ro 50 Seodaemun-ku Seoul 120-749 Republic of Korea
| | - Jinsung Tae
- Department of Chemistry; Yonsei University; Yonsei-ro 50 Seodaemun-ku Seoul 120-749 Republic of Korea
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Transferrin facilitates the formation of DNA double-strand breaks via transferrin receptor 1: the possible involvement of transferrin in carcinogenesis of high-grade serous ovarian cancer. Oncogene 2015; 35:3577-86. [PMID: 26549031 DOI: 10.1038/onc.2015.425] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2015] [Revised: 09/22/2015] [Accepted: 09/28/2014] [Indexed: 12/20/2022]
Abstract
Fallopian tubal epithelium is a candidate for the origin of high-grade serous ovarian cancer. Transferrin-containing follicular fluid and/or retrograde menstrual blood are possible risk factors for carcinogenesis. Accumulation of DNA double-strand breaks (DNA-DSBs) in the fallopian tubal epithelium is considered to play an important role in the development of cancer. However, the mechanisms by which DNA-DSBs accumulate have not yet been fully elucidated. The hydroxyl radical, which is produced in a Fenton reaction catalyzed by an iron ion, serves as a potent DNA-DSB-inducing molecule, raising the potential of an iron ion transporter of transferrin in the formation of DNA-DSBs. We studied the potential involvement of transferrin in DNA damage and the development of ovarian cancer. Treatment with transferrin facilitated the formation of histone 2AX phosphorylated at Serine 139 (γH2AX), which is known as a DNA-DSB marker, in human fallopian tube secretory epithelial cells and A2780 ovarian cancer cells. Knockdown of transferrin receptor 1 (TfR1), but not transferrin receptor 2, suppressed the transferrin uptake and consequent formation of γH2AX. As hydroxyl radicals in reactive oxygen species (ROS) are involved in DNA-DSBs, the formation of ROS was determined. Treatment with TfR1-specific small interference RNAs significantly diminished transferrin-induced formation of ROS. Moreover, TfR1-dependent uptake of transferrin was revealed to augment the formation of DNA-DSBs in the presence of hydrogen peroxide, which served as a substrate for the Fenton reaction. An ex vivo study with murine fallopian tubes further demonstrated that transferrin treatment introduced DNA-DSBs in the fallopian tubal epithelium. Collectively, these data suggested that the transferrin-TfR1 axis accounts for the induction of DNA-DSBs that potentially lead to DNA damage/genome instability. These findings also suggested that exposure to transferrin initiates and promotes the development of ovarian cancer by aiding the accumulation of DNA-DSBs in the fallopian tubal epithelium.
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Li G, Tang J, Ding P, Ye Y. A Rhodamine-Benzimidazole Based Chemosensor for Fe3+ and its Application in Living Cells. J Fluoresc 2015; 26:155-61. [DOI: 10.1007/s10895-015-1696-9] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 10/14/2015] [Indexed: 10/22/2022]
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Kodrík D, Bednářová A, Zemanová M, Krishnan N. Hormonal Regulation of Response to Oxidative Stress in Insects-An Update. Int J Mol Sci 2015; 16:25788-816. [PMID: 26516847 PMCID: PMC4632827 DOI: 10.3390/ijms161025788] [Citation(s) in RCA: 78] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2015] [Revised: 10/07/2015] [Accepted: 10/15/2015] [Indexed: 12/20/2022] Open
Abstract
Insects, like other organisms, must deal with a wide variety of potentially challenging environmental factors during the course of their life. An important example of such a challenge is the phenomenon of oxidative stress. This review summarizes the current knowledge on the role of adipokinetic hormones (AKH) as principal stress responsive hormones in insects involved in activation of anti-oxidative stress response pathways. Emphasis is placed on an analysis of oxidative stress experimentally induced by various stressors and monitored by suitable biomarkers, and on detailed characterization of AKH’s role in the anti-stress reactions. These reactions are characterized by a significant increase of AKH levels in the insect body, and by effective reversal of the markers—disturbed by the stressors—after co-application of the stressor with AKH. A plausible mechanism of AKH action in the anti-oxidative stress response is discussed as well: this probably involves simultaneous employment of both protein kinase C and cyclic adenosine 3′,5′-monophosphate pathways in the presence of extra and intra-cellular Ca2+ stores, with the possible involvement of the FoxO transcription factors. The role of other insect hormones in the anti-oxidative defense reactions is also discussed.
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Affiliation(s)
- Dalibor Kodrík
- Institute of Entomology, Biology Centre, Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic.
- Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic.
| | - Andrea Bednářová
- Institute of Entomology, Biology Centre, Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic.
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA.
| | - Milada Zemanová
- Institute of Entomology, Biology Centre, Academy of Sciences, Branišovská 31, 370 05 České Budějovice, Czech Republic.
- Faculty of Science, University of South Bohemia, Branišovská 31, 370 05 České Budějovice, Czech Republic.
| | - Natraj Krishnan
- Department of Biochemistry, Molecular Biology, Entomology and Plant Pathology, Mississippi State University, Mississippi State, MS 39762, USA.
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Hematological and Biochemical Parameters in Elite Soccer Players During A Competitive Half Season. J Med Biochem 2015; 34:460-466. [PMID: 28356856 PMCID: PMC4922354 DOI: 10.2478/jomb-2014-0057] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 05/14/2014] [Indexed: 11/20/2022] Open
Abstract
Background The purpose of the present study was to report and discuss the hematological and biochemical behavior of elite soccer players, in order to get more insight in the physiological characteristics of these sportsmen and to provide trainers and sports doctors with useful indicators. Methods Nineteen male soccer players volunteered to participate in this study. We followed the young elite soccer players during a competitive half season. Venous blood samples were collected between 9:00 and 10:00 a.m. after an overnight fast (10 h) at baseline, after 45 and 90 days and hematological and biochemical parameters were measured. Results Hemoglobin and hematocrit levels were significantly reduced over the observational period (p<0.05), but erythrocyte count and iron levels remained unchanged. Bilirubin and ferritin levels significantly increased in response to regular soccer training (p<0.05). We observed a significant decrease in muscle enzyme plasma activity during the 90 days study period. ANOVA analysis revealed a significant increase in the leukocyte and neutrophil counts (p<0.05), in parallel with a significant decrease in the lymphocyte count (p<0.05) after the observational period of 90 days. Conclusions Elite soccer players are characterized by significant changes in biochemical and hematological parameters over the half season, which are linked to training workload, as well as adaptation induced by the soccer training. Although the values of the measured parameters fell within the reference range, regular monitoring of the biochemical and hematological parameters is fundamental for the identification of a healthy status and related optimal performances by sport doctors and trainers and selection of a correct workload by trainers.
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Kamjumphol W, Chareonsudjai P, Taweechaisupapong S, Chareonsudjai S. Morphological Alteration and Survival of Burkholderia pseudomallei in Soil Microcosms. Am J Trop Med Hyg 2015; 93:1058-65. [PMID: 26324731 DOI: 10.4269/ajtmh.15-0177] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Accepted: 07/22/2015] [Indexed: 12/12/2022] Open
Abstract
The resilience of Burkholderia pseudomallei, the causative agent of melioidosis, was evaluated in control soil microcosms and in soil microcosms containing NaCl or FeSO4 at 30°C. Iron (Fe(II)) promoted the growth of B. pseudomallei during the 30-day observation, contrary to the presence of 1.5% and 3% NaCl. Scanning electron micrographs of B. pseudomallei in soil revealed their morphological alteration from rod to coccoid and the formation of microcolonies. The smallest B. pseudomallei cells were found in soil with 100 μM FeSO4 compared with in the control soil or soil with 0.6% NaCl (P < 0.05). The colony count on Ashdown's agar and bacterial viability assay using the LIVE/DEAD(®) BacLight(™) stain combined with flow cytometry showed that B. pseudomallei remained culturable and viable in the control soil microcosms for at least 120 days. In contrast, soil with 1.5% NaCl affected their culturability at day 90 and their viability at day 120. Our results suggested that a low salinity and iron may influence the survival of B. pseudomallei and its ability to change from a rod-like to coccoid form. The morphological changes of B. pseudomallei cells may be advantageous for their persistence in the environment and may increase the risk of their transmission to humans.
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Affiliation(s)
- Watcharaporn Kamjumphol
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Department of Environmental Science, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand; Biofilm Research Group, Department of Oral Diagnosis, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand; Melioidosis Research Center, Khon Kaen University, Khon Kaen, Thailand
| | - Pisit Chareonsudjai
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Department of Environmental Science, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand; Biofilm Research Group, Department of Oral Diagnosis, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand; Melioidosis Research Center, Khon Kaen University, Khon Kaen, Thailand
| | - Suwimol Taweechaisupapong
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Department of Environmental Science, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand; Biofilm Research Group, Department of Oral Diagnosis, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand; Melioidosis Research Center, Khon Kaen University, Khon Kaen, Thailand
| | - Sorujsiri Chareonsudjai
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; Department of Environmental Science, Faculty of Science, Khon Kaen University, Khon Kaen, Thailand; Biofilm Research Group, Department of Oral Diagnosis, Faculty of Dentistry, Khon Kaen University, Khon Kaen, Thailand; Melioidosis Research Center, Khon Kaen University, Khon Kaen, Thailand
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Abstract
Thiyl radicals are important intermediates in the redox biology and chemistry of thiols. These radicals can react via hydrogen transfer with various C-H bonds in peptides and proteins, leading to the generation of carbon-centered radicals, and, potentially, to irreversible protein damage. This review summarizes quantitative information on reaction kinetics and product formation, and discusses the significance of these reactions for protein degradation induced by thiyl radical formation.
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Affiliation(s)
- Christian Schöneich
- a Department of Pharmaceutical Chemistry , The University of Kansas , Lawrence , KS 66047 , USA
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132
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Sawicki KT, Shang M, Wu R, Chang HC, Khechaduri A, Sato T, Kamide C, Liu T, Naga Prasad SV, Ardehali H. Increased Heme Levels in the Heart Lead to Exacerbated Ischemic Injury. J Am Heart Assoc 2015; 4:e002272. [PMID: 26231844 PMCID: PMC4599478 DOI: 10.1161/jaha.115.002272] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Heme is an essential iron-containing molecule for cardiovascular physiology, but in excess it may increase oxidative stress. Failing human hearts have increased heme levels, with upregulation of the rate-limiting enzyme in heme synthesis, δ-aminolevulinic acid synthase 2 (ALAS2), which is normally not expressed in cardiomyocytes. We hypothesized that increased heme accumulation (through cardiac overexpression of ALAS2) leads to increased oxidative stress and cell death in the heart. Methods and Results We first showed that ALAS2 and heme levels are increased in the hearts of mice subjected to coronary ligation. To determine the causative role of increased heme in the development of heart failure, we generated transgenic mice with cardiac-specific overexpression of ALAS2. While ALAS2 transgenic mice have normal cardiac function at baseline, their hearts display increased heme content, higher oxidative stress, exacerbated cell death, and worsened cardiac function after coronary ligation compared to nontransgenic littermates. We confirmed in cultured cardiomyoblasts that the increased oxidative stress and cell death observed with ALAS2 overexpression is mediated by increased heme accumulation. Furthermore, knockdown of ALAS2 in cultured cardiomyoblasts exposed to hypoxia reversed the increases in heme content and cell death. Administration of the mitochondrial antioxidant MitoTempo to ALAS2-overexpressing cardiomyoblasts normalized the elevated oxidative stress and cell death levels to baseline, indicating that the effects of increased ALAS2 and heme are through elevated mitochondrial oxidative stress. The clinical relevance of these findings was supported by the finding of increased ALAS2 induction and heme accumulation in failing human hearts from patients with ischemic cardiomyopathy compared to nonischemic cardiomyopathy. Conclusions Heme accumulation is detrimental to cardiac function under ischemic conditions, and reducing heme in the heart may be a novel approach for protection against the development of heart failure.
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Affiliation(s)
- Konrad Teodor Sawicki
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
| | - Meng Shang
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
| | - Rongxue Wu
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
| | - Hsiang-Chun Chang
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
| | - Arineh Khechaduri
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
| | - Tatsuya Sato
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
| | - Christine Kamide
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
| | - Ting Liu
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
| | - Sathyamangla V Naga Prasad
- Department of Molecular Cardiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH (S.V.N.P.)
| | - Hossein Ardehali
- Feinberg Cardiovascular Research Institute (FCVRI), Northwestern University, Chicago, IL (K.T.S., M.S., R.W., H.C.C., A.K., T.S., C.K., T.L., H.A.)
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Chereddy NR, Nagaraju P, Niladri Raju M, Krishnaswamy VR, Korrapati PS, Bangal PR, Rao VJ. A novel FRET ‘off–on’ fluorescent probe for the selective detection of Fe 3+ , Al 3+ and Cr 3+ ions: Its ultrafast energy transfer kinetics and application in live cell imaging. Biosens Bioelectron 2015; 68:749-756. [DOI: 10.1016/j.bios.2015.01.074] [Citation(s) in RCA: 79] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2014] [Revised: 01/29/2015] [Accepted: 01/31/2015] [Indexed: 01/04/2023]
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134
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The protective effects of endogenous hydrogen sulfide modulator, S-propargyl-cysteine, on high glucose-induced apoptosis in cardiomyocytes: A novel mechanism mediated by the activation of Nrf2. Eur J Pharmacol 2015; 761:135-43. [PMID: 25979858 DOI: 10.1016/j.ejphar.2015.05.001] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 04/30/2015] [Accepted: 05/04/2015] [Indexed: 12/12/2022]
Abstract
S-propargyl-cysteine (SPRC) is a novel synthetic molecule exerting antioxidant effects via elevating generation of endogenous H2S. Our study aimed to elucidate possible antioxidant mechanisms of SPRC in hyperglycemia-induced oxidative stress. H9C2 cells were treated with SPRC or NaHS at the indicated concentration before being treated with high glucose for 48h. Follow-up experiments were based on detailed description given in Section 2. SD rats were injected with Streptozocin (STZ) to induce diabetes as previously reported. Diabetic rats were administrated with SPRC, NaHS or solution respectively for one week before the rats were killed for follow-up experiments. Our work found that SPRC remarkably attenuated high glucose induced generation of reactive oxygen species and apoptosis in H9C2 cells. SPRC increased stability and nuclear translocation of Nuclear factor erythroid 2-related factor 2 (Nrf2), up-regulated expression of antioxidant enzyme superoxide dismutase (SOD) and interfered with the interaction between Kelch-like ECH-associated protein 1 (KEAP1) and Nrf2. SPRC activated Nrf2 via Cystathionase-γ-lyase (CSE) and Akt pathway. CSE inhibitor PAG and Akt inhibitor LY294002 could reverse the protective effects of SPRC. Knockdown of Nrf2 by shRNA also blocked SPRC up-regulated expression of CSE. Similar results of protein expression and hypoglycemic activity of SPRC were observed in STZ induced diabetic rats.
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135
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Wang P, Peng X, Wei ZF, Wei FY, Wang W, Ma WD, Yao LP, Fu YJ, Zu YG. Geraniin exerts cytoprotective effect against cellular oxidative stress by upregulation of Nrf2-mediated antioxidant enzyme expression via PI3K/AKT and ERK1/2 pathway. Biochim Biophys Acta Gen Subj 2015; 1850:1751-61. [PMID: 25917210 DOI: 10.1016/j.bbagen.2015.04.010] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2014] [Revised: 03/29/2015] [Accepted: 04/16/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND Geraniin, an active compound with remarkable antioxidant activity, was isolated from Geranium sibiricum. The present study aimed to investigate whether geraniin has the ability to activate Nrf2, induce antioxidant enzyme expression and protect cells from oxidative damage. METHODS The cells were pretreated with geraniin for 24h and exposed to hydrogen peroxide (H₂O₂) for 4h. Intracellular reactive oxygen species (ROS) levels, mitochondrial membrane potential and apoptosis were measured. We also investigated intracellular glutathione (GSH) levels and changes in nuclear factor erythroid 2-related factor 2 (Nrf2)-mediated signaling cascade in cells treated with geraniin. RESULTS We investigated the protective effects of geraniin against H₂O₂-induced apoptosis in HepG2 cells. Geraniin significantly reduced H₂O₂-induced oxidative damage in a dose dependent manner. Further, geraniin induced the expression of heme oxygenase-1 (HO-1), NAD(P)H quinone oxidoreductase-1 (NQO1) and level of glutathione (GSH) in a concentration- and time-dependent manner, and increased Nrf2 nuclear translocation. The Nrf2-related cytoprotective effects of geraniin were PI3K/AKT and extracellular signal-regulated protein kinase1/2 (ERK1/2) pathway-dependent. However, inhibitors of PI3K/AKT and ERK1/2 (LY294002 or U0126) not only suppressed geraniin-induced nuclear translocation of Nrf2 but also abolished the expression of HO-1, NQO1 and GSH. CONCLUSIONS These results demonstrated that geraniin induced Nrf2-mediated expression of antioxidant enzymes HO-1 and NQO1, presumably via PI3K/AKT and ERK1/2 signaling pathways, thereby protecting cells from H₂O₂-induced oxidative cell death. GENERAL SIGNIFICANCE Geraniin, at least in part, offers an antioxidant defense capacity to protect cells from the oxidative stress-related diseases.
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Affiliation(s)
- Peng Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Key Laboratory of Myocardial Ischemia, Harbin Medical University, Ministry of Education, Heilongjiang Province, PR China
| | - Xiao Peng
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Zuo-Fu Wei
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Fu-Yao Wei
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Wei Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Wei-Dong Ma
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Li-Ping Yao
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
| | - Yu-Jie Fu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China.
| | - Yuan-Gang Zu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China; Engineering Research Center of Forest Bio-preparation, Ministry of Education, Northeast Forestry University, Harbin 150040, PR China
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136
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Jansen E, Beekhof P, Tamosiunas A, Luksiene D, Baceviciene M. Biomarkers of oxidative stress and redox status in a short-term low-dosed multivitamin and mineral supplementation study in two human age groups. Biogerontology 2015; 16:645-53. [PMID: 25773009 DOI: 10.1007/s10522-015-9568-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2014] [Accepted: 03/09/2015] [Indexed: 11/26/2022]
Abstract
A 60-day intervention study was conducted in which the participants took a low dose of a multivitamin and mineral supplement. The study consists of a final number of 66 volunteers (30 males and 36 females), divided into two age groups of 30-35 and 60-65 years. For 30 days they took a multivitamin and mineral supplement with 1× the recommended daily intake (RDI) followed by another 30 days with 2× the RDI. The aim of the study was to monitor oxidative stress and redox status of both young and old age groups. In serum, the expected increase of the water-soluble vitamins folate and vitamin B12 was observed with a concomitant decrease in homocysteine. Serum biomarkers of oxidative stress, the reactive oxygen metabolites, of the antioxidant status, the biological antioxidant potential did not change. However, the total thiol levels in serum, biomarker of the redox status, decreased significant, only in both groups of elderly after 60 days. In erythrocytes, there was a change in the glutathione metabolism as observed by an increase in glutathione reductase and to a lower extend in glutathione peroxidase, indicating an increase in oxidative stress in all groups. It is concluded that a low-dosed multivitamin and -mineral supplementation have different effects on the redox status in young versus old. It remained to explain why a low dose of a multivitamin and -mineral supplement cause increased oxidative stress.
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Affiliation(s)
- Eugene Jansen
- Centre for Health Protection, National Institute for Public Health and the Environment, P.O. Box 1, 3720 BA, Bilthoven, The Netherlands,
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137
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Nauser T, Koppenol WH, Schöneich C. Protein thiyl radical reactions and product formation: a kinetic simulation. Free Radic Biol Med 2015; 80:158-63. [PMID: 25499854 PMCID: PMC5118936 DOI: 10.1016/j.freeradbiomed.2014.12.006] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/22/2014] [Revised: 11/26/2014] [Accepted: 12/01/2014] [Indexed: 11/30/2022]
Abstract
Protein thiyl radicals are important intermediates generated in redox processes of thiols and disulfides. Thiyl radicals efficiently react with glutathione and ascorbate, and the common notion is that these reactions serve to eliminate thiyl radicals before they can enter potentially hazardous processes. However, over the past years increasing evidence has been provided for rather efficient intramolecular hydrogen transfer processes of thiyl radicals in proteins and peptides. Based on rate constants published for these processes, we have performed kinetic simulations of protein thiyl radical reactivity. Our simulations suggest that protein thiyl radicals enter intramolecular hydrogen transfer reactions to a significant extent even under physiologic conditions, i.e., in the presence of 30 µM oxygen, 1 mM ascorbate, and 10 mM glutathione. At lower concentrations of ascorbate and glutathione, frequently observed when tissue is exposed to oxidative stress, the extent of irreversible protein thiyl radical-dependent protein modification increases.
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Affiliation(s)
- Thomas Nauser
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland.
| | - Willem H Koppenol
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Christian Schöneich
- Department of Pharmaceutical Chemistry, The University of Kansas, Lawrence, KS 66047, USA.
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138
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The role of hepcidin in chronic mild stress-induced depression. Neurosci Lett 2015; 588:120-4. [PMID: 25576700 DOI: 10.1016/j.neulet.2015.01.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 12/24/2014] [Accepted: 01/05/2015] [Indexed: 11/21/2022]
Abstract
Depression is one of the most prevalent challenges of mental conditions. Yet its exact etiology has not been clear. Chronic stress increases the production of cytokines, which can lead to depression. Hepcidin, an iron modulator, is involved in the inflammation process as well as iron homeostasis. This study was designed to investigate the role of hepcidin, on stress-induced depression. 60 male wistar rats were entered the experiment. We used a chronic unpredictable mild stress (for 28 days) as a rat model of depression. In stressed group, three subgroups were treated with three different doses of dalteparin (a hepcidin inhibitor): 70IU/kg, 100IU/kg and 140IU/kg daily, for 4 weeks. The animals in the stressed group had more depressive-like behavior than the control group. Moreover, chronic mild stress produced an increased serum interleukin-6 levels. These effects were accompanied by an obvious increase in hepcidin mRNA level and iron content in the hippocampus. These changes were blocked by the injection of dalteparin. In conclusion, inhibition of hepcidin may reduce many pathological changes seen in stress-induced depressive disorders.
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139
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Affiliation(s)
- Konrad Teodor Sawicki
- Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL (K.T.S., H.C.C., H.A.)
| | - Hsiang-Chun Chang
- Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL (K.T.S., H.C.C., H.A.)
| | - Hossein Ardehali
- Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL (K.T.S., H.C.C., H.A.)
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140
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Abstract
Aromatic amines 1-amino-4-phenoxybenzene (A-1A), 2-(4-aminophenoxy) naphthalene (A-2A), and 1-(4-aminophenoxy) naphthalene (A-3A) were synthesized by the reduction of corresponding nitroaromatics with hydrazine monohydrate and Pd/C 5% (w/w). The newly synthesized compounds were characterized by FTIR,1H NMR,13C NMR, UV-visible spectrophotometer, and mass spectrometry and their biological activities were investigated along with structurally similar 4-(4-aminophenyloxy) biphenyl (A-A). Results of brine shrimp cytotoxicity assay showed that almost all of the compounds had LD50values <1 μg/mL. The compounds also showed significant antitumor activity with IC50values ranging from 67.45 to 12.2 µgmL−1. The cytotoxicity and antitumor studies correlate the results which suggests the anticancerous nature of compounds. During the interaction study of these compounds with DNA, all of the compounds showed hyperchromic effect indicating strong interaction through binding with the grooves of DNA. Moreover, A-3A also showed decrease inλmaxconfirming higher propensity for DNA groove binding. In DPPH free radical scavenging assay, all the compounds showed potential antioxidant capability. The compounds were highly active in protecting DNA against hydroxyl free radicals. DNA interaction and antioxidant results back up each other indicating that these compounds have potential to be used as cancer chemopreventive agents. Additionally, one compound (A-1A) showed significant antibacterial and antifungal activity as well.
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141
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Yang M, Meng W, Ding Q, Su N, Liu X, Zhang M, Yang B. Novel fluorescent probes based on rhodamine for naked-eye detection of Fe3+ and their application of imaging in living cells. NEW J CHEM 2015. [DOI: 10.1039/c5nj00226e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel fluorescent probes for Fe3+ and their application of imaging in living cells.
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Affiliation(s)
- Meipan Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
| | - Wenfei Meng
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
| | - Qingli Ding
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
| | - Na Su
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
| | - Xiaojing Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
| | - Ming Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
| | - Bingqin Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry
- Ministry of Education
- College of Chemistry and Materials Science
- Northwest University
- Xi'an 710069
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142
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Wu P, Yu Y, McGhee CE, Tan LH, Lu Y. Applications of synchrotron-based spectroscopic techniques in studying nucleic acids and nucleic acid-functionalized nanomaterials. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:7849-72. [PMID: 25205057 PMCID: PMC4275547 DOI: 10.1002/adma.201304891] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 06/02/2014] [Indexed: 05/22/2023]
Abstract
In this review, we summarize recent progress in the application of synchrotron-based spectroscopic techniques for nucleic acid research that takes advantage of high-flux and high-brilliance electromagnetic radiation from synchrotron sources. The first section of the review focuses on the characterization of the structure and folding processes of nucleic acids using different types of synchrotron-based spectroscopies, such as X-ray absorption spectroscopy, X-ray emission spectroscopy, X-ray photoelectron spectroscopy, synchrotron radiation circular dichroism, X-ray footprinting and small-angle X-ray scattering. In the second section, the characterization of nucleic acid-based nanostructures, nucleic acid-functionalized nanomaterials and nucleic acid-lipid interactions using these spectroscopic techniques is summarized. Insights gained from these studies are described and future directions of this field are also discussed.
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Affiliation(s)
- Peiwen Wu
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Yang Yu
- Center of Biophysics and Computational Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Claire E. McGhee
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Li Huey Tan
- Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
| | - Yi Lu
- Department of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. Center of Biophysics and Computational Biology, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA. Department of Chemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA
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143
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Hu ZQ, Gu YY, Hu WZ, Sun LL, Zhu JH, Jiang Y. A Highly Selective and Sensitive Turn-On Fluorescent Chemosensor Based on Rhodamine 6G for Iron(III). ChemistryOpen 2014; 3:264-8. [PMID: 25558445 PMCID: PMC4280826 DOI: 10.1002/open.201402065] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Revised: 10/29/2014] [Indexed: 01/08/2023] Open
Abstract
Recently, more and more rhodamine derivatives have been used as fluorophores to construct sensors due to their excellent spectroscopic properties. A rhodamine-based fluorescent and colorimetric Fe(3+) chemosensor 3',6'-bis(ethylamino)-2-acetoxyl-2',7'-dimethyl-spiro[1H-isoindole-1,9'-[9H]xanthen]-3(2H)-one (RAE) was designed and synthesized. Upon the addition of Fe(3+), the dramatic enhancement of both fluorescence and absorbance intensity, as well as the color change of the solution, could be observed. The detection limit of RAE for Fe(3+) was around 7.98 ppb. Common coexistent metal ions showed little or no interference in the detection of Fe(3+). Moreover, the addition of CN(-) could quench the fluorescence of the acetonitrile solution of RAE and Fe(3+), indicating the regeneration of the chemosensor RAE. The robust nature of the sensor was shown by the detection of Fe(3+) even after repeated rounds of quenching. As iron is a ubiquitous metal in cells and plays vital roles in many biological processes, this chemosensor could be developed to have applications in biological studies.
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Affiliation(s)
- Zhi-Qiang Hu
- College of Chemistry & Molecular Engineering, Qingdao University of Science & Technology Qingdao 266042 (P. R. China) E-mail:
| | - Ying-Ying Gu
- College of Chemistry & Molecular Engineering, Qingdao University of Science & Technology Qingdao 266042 (P. R. China) E-mail:
| | - Wen-Zhou Hu
- College of Chemistry & Molecular Engineering, Qingdao University of Science & Technology Qingdao 266042 (P. R. China) E-mail:
| | - Lei-Li Sun
- College of Chemistry & Molecular Engineering, Qingdao University of Science & Technology Qingdao 266042 (P. R. China) E-mail:
| | - Jiang-Hua Zhu
- College of Chemistry & Molecular Engineering, Qingdao University of Science & Technology Qingdao 266042 (P. R. China) E-mail:
| | - Yi Jiang
- College of Chemistry & Molecular Engineering, Qingdao University of Science & Technology Qingdao 266042 (P. R. China) E-mail:
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144
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Meng WF, Yang MP, Li B, Cheng Z, Yang BQ. Fe3+-selective naked-eye ‘off–on’ fluorescent probe: its crystal structure and imaging in living cells. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.09.061] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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145
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Furnari MA, Saw CLL, Kong AN, Wagner GC. Altered behavioral development in Nrf2 knockout mice following early postnatal exposure to valproic acid. Brain Res Bull 2014; 109:132-42. [PMID: 25454122 DOI: 10.1016/j.brainresbull.2014.10.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Revised: 10/10/2014] [Accepted: 10/13/2014] [Indexed: 12/30/2022]
Abstract
Early exposure to valproic acid results in autism-like neural and behavioral deficits in humans and other animals through oxidative stress-induced neural damage. In the present study, valproic acid was administered to genetically altered mice lacking the Nrf2 (nuclear factor-erythroid 2 related factor 2) gene on postnatal day 14 (P14). Nrf2 is a transcription factor that induces genes that protect against oxidative stress. It was found that valproic acid-treated Nrf2 knockout mice were less active in open field activity chambers, less successful on the rotorod, and had deficits in learning and memory in the Morris water maze compared to the valproic acid-treated wild type mice. Given these results, it appears that Nrf2 knockout mice were more sensitive to the neural damage caused by valproic acid administered during early development.
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Affiliation(s)
- Melody A Furnari
- Joint Program in Toxicology, Rutgers, The State University of New Jersey, 152 Frelinghyusen Road, Piscataway, NJ 08854, USA
| | - Constance Lay-Lay Saw
- Department of Pharmaceutics, Rutgers, The State University of New Jersey, 160 Frelinghyusen Road, Piscataway, NJ 08854, USA
| | - Ah-Ng Kong
- Department of Pharmaceutics, Rutgers, The State University of New Jersey, 160 Frelinghyusen Road, Piscataway, NJ 08854, USA
| | - George C Wagner
- Department of Psychology, Rutgers, The State University of New Jersey, 152 Frelinghuysen Road, New Brunswick, NJ 08854, USA.
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146
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No evidence of persisting unrepaired nuclear DNA single strand breaks in distinct types of cells in the brain, kidney, and liver of adult mice after continuous eight-week 50 Hz magnetic field exposure with flux density of 0.1 mT or 1.0 mT. PLoS One 2014; 9:e109774. [PMID: 25302592 PMCID: PMC4193825 DOI: 10.1371/journal.pone.0109774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Accepted: 09/11/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND It has been hypothesized in the literature that exposure to extremely low frequency electromagnetic fields (50 or 60 Hz) may lead to human health effects such as childhood leukemia or brain tumors. In a previous study investigating multiple types of cells from brain and kidney of the mouse (Acta Neuropathologica 2004; 107: 257-264), we found increased unrepaired nuclear DNA single strand breaks (nDNA SSB) only in epithelial cells of the choroid plexus in the brain using autoradiographic methods after a continuous eight-week 50 Hz magnetic field (MF) exposure of adult mice with flux density of 1.5 mT. METHODS In the present study we tested the hypothesis that MF exposure with lower flux densities (0.1 mT, i.e., the actual exposure limit for the population in most European countries, and 1.0 mT) shows similar results to those in the previous study. Experiments and data analysis were carried out in a similar way as in our previous study. RESULTS Continuous eight-week 50 Hz MF exposure with 0.1 mT or 1.0 mT did not result in increased persisting unrepaired nDNA SSB in distinct types of cells in the brain, kidney, and liver of adult mice. MF exposure with 1.0 mT led to reduced unscheduled DNA synthesis (UDS) in epithelial cells in the choroid plexus of the fourth ventricle in the brain (EC-CP) and epithelial cells of the cortical collecting duct in the kidney, as well as to reduced mtDNA synthesis in neurons of the caudate nucleus in the brain and in EC-CP. CONCLUSION No evidence was found for increased persisting unrepaired nDNA SSB in distinct types of cells in the brain, kidney, and liver of adult mice after continuous eight-week 50 Hz magnetic field exposure with flux density of 0.1 mT or 1.0 mT.
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147
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Li S, Li Y, Cao J, Zhu J, Fan L, Li X. Sulfur-doped graphene quantum dots as a novel fluorescent probe for highly selective and sensitive detection of Fe(3+). Anal Chem 2014; 86:10201-7. [PMID: 25280346 DOI: 10.1021/ac503183y] [Citation(s) in RCA: 315] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Sulfur-doped graphene quantum dots (S-GQDs) with stable blue-green fluorescence were synthesized by one-step electrolysis of graphite in sodium p-toluenesulfonate aqueous solution. Compared with GQDs, the S-GQDs drastically improved the electronic properties and surface chemical reactivities, which exhibited a sensitive response to Fe(3+). Therefore, the S-GQDs were used as an efficient fluorescent probe for highly selective detection of Fe(3+). Upon increasing of Fe(3+) concentration ranging from 0.01 to 0.70 μM, the fluorescence intensity of S-GQDs gradually decreased and reached a plateau at 0.90 μM. The difference in the fluorescence intensity of S-GQDs before and after adding Fe(3+) was proportional to the concentration of Fe(3+), and the calibration curve displayed linear regions over the range of 0-0.70 μM. The detection limit was 4.2 nM. Finally, this novel fluorescent probe was successfully applied to the direct analysis of Fe(3+) in human serum, which presents potential applications in clinical diagnosis and may open a new way to the design of effective fluorescence probes for other biologically related targets.
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Affiliation(s)
- Shuhua Li
- Department of Chemistry, Beijing Normal University , Beijing 100875, People's Republic of China
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148
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Tiwari V, Khokhar M. Mechanism of action of anti-hypercholesterolemia drugs and their resistance. Eur J Pharmacol 2014; 741:156-70. [PMID: 25151024 DOI: 10.1016/j.ejphar.2014.07.048] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Revised: 07/23/2014] [Accepted: 07/24/2014] [Indexed: 01/05/2023]
Abstract
Coronary artery disease is one of the leading causes of death worldwide. One of the significant causes of this disease is hypercholesterolemia which is the result of various genetic alterations that are associated with the accumulation of specific classes of lipoprotein particles in plasma. A number of drugs are used to treat hypercholesterolemia like statin, fibrate, bile acid sequestrants, niacin, ezetimibe, omega-3 fatty acids and natural extracts. It has been observed that these drugs show diverse response in different individuals. The present review explains the mechanism of action of these drugs as well as mechanism of its lesser effectiveness or resistance in some individuals. There are various identified genetic variations that are associated with diversity in the drugs response. Therefore, present study helps to understand the ethiology of drug mechanism and resistance developed against drugs used to treat hypercholesterolemia.
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Affiliation(s)
- Vishvanath Tiwari
- Department of Biochemistry, Central University of Rajasthan, Ajmer 305801, Rajasthan, India.
| | - Manoj Khokhar
- Department of Biochemistry, Central University of Rajasthan, Ajmer 305801, Rajasthan, India
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149
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Wang R, Wan Q, Feng F, Bai Y. A novel coumarin-based fluorescence chemosensor for Fe3+. Chem Res Chin Univ 2014. [DOI: 10.1007/s40242-014-3192-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Aida L, Soumaya G, Myriam E, Mohsen S, Hafedh A. Effects of static magnetic field exposure on plasma element levels in rat. Biol Trace Elem Res 2014; 160:67-72. [PMID: 24894831 DOI: 10.1007/s12011-014-9987-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/14/2014] [Accepted: 04/16/2014] [Indexed: 11/24/2022]
Abstract
The interaction of static magnetic fields (SMFs) with living organisms is a rapidly growing field of investigation. The magnetic fields (MFs) effect observed with radical pair recombination is one of the well-known mechanisms by which MFs interact with biological systems. SMF influenced cellular antioxidant defense mechanisms by affecting antioxidant enzymes such as superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT). However, there were insufficient reports about the effects of SMF on macro and trace elements in serum, and the results were contradictory until now. In the current study, 12 rats were divided into two groups, namely as control and exposure group (128 mT and 1 h/day during five consecutive days). The macro and trace element concentrations in serum were examined. No significant difference was observed in the sodium (Na), potassium (K), calcium (Ca), phosphorus (P), and selenium (Se) levels in rat compared to control. By contrast, exposure to SMF showed an increase in the zinc (Zn) level and a decrease in iron (Fe) concentration. Under our experimental conditions, SMF exposure cannot affect the plasma levels of macroelements, while it can disrupt Zn and Fe concentrations in rat.
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Affiliation(s)
- Lahbib Aida
- Laboratory of Integrative Physiology, Faculty of Sciences of Bizerte, Carthage University, 7021, Jarzouna, Tunisia,
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