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Krishnamurthy HK, Rajavelu I, Pereira M, Jayaraman V, Krishna K, Wang T, Bei K, Rajasekaran JJ. Inside the genome: understanding genetic influences on oxidative stress. Front Genet 2024; 15:1397352. [PMID: 38983269 PMCID: PMC11231378 DOI: 10.3389/fgene.2024.1397352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Accepted: 06/03/2024] [Indexed: 07/11/2024] Open
Abstract
Genetics is a key factor that governs the susceptibility to oxidative stress. In the body, oxidative burden is regulated by the balance between the prooxidant genes that orchestrate processes that produce oxidant species, while the antioxidant genes aid those involved in scavenging these species. Together, the two components aid in maintaining the oxidative balance in the body. Genetic variations can influence the expression and activity of the encoded proteins which can then affect their efficiency in regulating redox processes, thereby increasing the risk of oxidative stress. This review studies single nucleotide polymorphisms (SNPs) that bear relevance to oxidative stress by exploring the variations in the prooxidant genes, such as XDH, CYBA, CYP1A1, PTGS2, NOS, and MAO and antioxidant genes including SOD, CAT, GPX, GSS, GLUL, GSR, GSTM1, GSTM5, GSTP1, TXN and HMOX1. Early identification of individuals at the increased risk of oxidative stress is possible from the assessment of sequence of these genes. Integrating genetic insights into oxidative stress management measures can pave the way for personalized medicine that tailors' healthcare approaches to individual genetic profiles. Effective genetic assessment along with routine quantification of biological markers can improve and monitor treatment strategies, enhancing mitigation approaches that maintain cellular health and promote longevity.
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Affiliation(s)
| | | | | | | | | | - Tianhao Wang
- Vibrant Sciences LLC., San Carlos, CA, United States
| | - Kang Bei
- Vibrant Sciences LLC., San Carlos, CA, United States
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2
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Ren H, Zhu M, Yu H, Weng Y, Yu W. The Effect of Propofol on the Hippocampus in Chronic Cerebral Hypoxia in a Rat Model Through Klotho Regulation. In Vivo 2024; 38:1162-1169. [PMID: 38688607 PMCID: PMC11059908 DOI: 10.21873/invivo.13551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 11/13/2023] [Accepted: 11/28/2023] [Indexed: 05/02/2024]
Abstract
BACKGROUND/AIM Chronic cerebral hypoxia often leads to brain damage and inflammation. Propofol is suggested to have neuroprotective effects under anaesthesia. MATERIALS AND METHODS This study used rat models with carotid artery coarctation or closure. Four groups of rats were compared: a control group, a propofol-treated group, a group with bilateral common carotid artery blockage (BCAO), and a BCAO group treated with propofol post-surgery. RESULTS The Morris water maze test indicated cognitive impairment in BCAO rats, which also showed hippocampal structure changes, oxidative stress markers alteration, and reduced Klotho expression. Propofol treatment post-BCAO surgery improved these outcomes, suggesting its potential in mitigating chronic cerebral hypoxia effects. CONCLUSION Propofol may increase klotho levels and reduce apoptosis and inflammation linked to oxidative stress in cognitively impaired mice.
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Affiliation(s)
- Hengchang Ren
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, P.R. China
| | - Min Zhu
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, P.R. China
| | - Hongli Yu
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, P.R. China
| | - Yiqi Weng
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, P.R. China
| | - Wenli Yu
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, P.R. China
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3
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Shah A, Varma M, Bhandari R. Exploring sulforaphane as neurotherapeutic: targeting Nrf2-Keap & Nf-Kb pathway crosstalk in ASD. Metab Brain Dis 2024; 39:373-385. [PMID: 37249861 DOI: 10.1007/s11011-023-01224-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 04/22/2023] [Indexed: 05/31/2023]
Abstract
Autism spectrum disorders (ASD) are a family of complex neurodevelopmental disorders, characterized mainly through deficits in social behavior and communication. While the causes giving rise to autistic symptoms are numerous and varied, the treatment options and therapeutic avenues are still severely limited. Nevertheless, a number of signalling pathways have been implicated in the pathogenesis of the disease, and targeting these pathways might provide insight into potential treatments and future strategies. Importantly, alterations in inflammation, oxidative stress, and mitochondrial dysfunction have been noted in the brains of ASD patients, and among the pathways involved in these processes is the Nrf2 cascade. This particular pathway has been hypothesized to be involved in inducing both, inflammatory and anti-inflammatory/neuroprotective effects in the brain, sparking an interest in its use in ASD. Sulforaphane, a sulfur-containing phytochemical present mainly in cruciferous plants like broccoli and cabbage, has shown efficacy in activating the Nrf2 signaling pathway, which in turn brings about a protective effect on neuronal cells, especially against mitochondrial dysfunction. Its efficacy against ASD has not yet been evaluated, and in this paper, we attempt to discuss the therapeutic potential of this agent in the therapy of autism, with special emphasis on the role of the Nrf2 pathway in the disorder.
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Affiliation(s)
- Ali Shah
- Pharmacology Research Laboratory, University Institute of Pharmaceutical Sciences, UGC- Centre of Advanced Study, Panjab University, 160 014, Chandigarh, India
| | - Manasi Varma
- Pharmacology Research Laboratory, University Institute of Pharmaceutical Sciences, UGC- Centre of Advanced Study, Panjab University, 160 014, Chandigarh, India
| | - Ranjana Bhandari
- Pharmacology Research Laboratory, University Institute of Pharmaceutical Sciences, UGC- Centre of Advanced Study, Panjab University, 160 014, Chandigarh, India.
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Chen N, Yao P, Zhang W, Zhang Y, Xin N, Wei H, Zhang T, Zhao C. Selenium nanoparticles: Enhanced nutrition and beyond. Crit Rev Food Sci Nutr 2023; 63:12360-12371. [PMID: 35848122 DOI: 10.1080/10408398.2022.2101093] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Selenium is a trace nutrient that has both nutritional and nutraceutical functions, whereas narrow nutritional range of selenium intake limits its use. Selenium nanoparticles (SeNPs) are less toxic and more bioavailable than traditional forms of selenium, suggesting that SeNPs have the potential to replace traditional selenium in food industries and/or biomedical fields. From the perspective of how SeNPs can be applied in health area, this review comprehensively discusses SeNPs in terms of its preparation, nutritional aspect, detoxification effect of heavy metals, nutraceutical functions and anti-pathogenic microorganism effects. By physical, chemical, or biological methods, inorganic selenium can be transformed into SeNPs which have increased stability and bioavailability as well as low toxicity. SeNPs are more effective than traditional selenium form in synthesizing selenoproteins like glutathione peroxidases. SeNPs can reshape the digestive system to facilitate digestion and absorption of nutrients. SeNPs have shown excellent potential to adjunctively treat cancer patients, enhance immune system, control diabetes, and prevent rheumatoid arthritis. Additionally, SeNPs have good microbial anti-pathogenic effects and can be used with other antimicrobial agents to fight against pathogenic bacteria, fungi, or viruses. Development of novel SeNPs with enhanced functions can greatly benefit the food-, nutraceutical-, and biomedical industries.
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Affiliation(s)
- Nan Chen
- College of Food Science and Engineering, Jilin University, Changchun, China
| | - Peng Yao
- College of Food Science and Engineering, Jilin University, Changchun, China
| | - Wei Zhang
- Weihai Baihe Biology Technological Co., Ltd, Rongcheng, Shandong, China
| | - Yutong Zhang
- College of Food Science and Engineering, Jilin University, Changchun, China
| | - Naicheng Xin
- College of Food Science and Engineering, Jilin University, Changchun, China
| | - Hongdi Wei
- College of Food Science and Engineering, Jilin University, Changchun, China
| | - Tiehua Zhang
- College of Food Science and Engineering, Jilin University, Changchun, China
- Jilin Engineering Technology Research Center for High Value Utilization of Animal By-Products, Jilin University, Changchun, China
| | - Changhui Zhao
- College of Food Science and Engineering, Jilin University, Changchun, China
- Jilin Engineering Technology Research Center for High Value Utilization of Animal By-Products, Jilin University, Changchun, China
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5
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Sołek P, Czechowska E, Sowa-Kućma M, Stachowicz K, Kaczka P, Tabęcka-Łonczyńska A. Elucidating the molecular mechanisms underlying the induction of autophagy by antidepressant-like substances in C57BL/6J mouse testis model upon LPS challenge. Cell Commun Signal 2023; 21:251. [PMID: 37735683 PMCID: PMC10512556 DOI: 10.1186/s12964-023-01270-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/13/2023] [Indexed: 09/23/2023] Open
Abstract
The treatment of depression with pharmaceuticals is associated with many adverse side effects, including male fertility problems. The precise mechanisms by which these agents affect testicular cells remain largely unknown, but they are believed to induce cellular stress, which is sensed by the endoplasmic reticulum (ER) and the Golgi apparatus. These organelles are responsible for maintaining cellular homeostasis and regulating signal pathways that lead to autophagy or apoptosis. Therefore, in this study, we aimed to investigate the autophagy, ER, and Golgi stress-related pathways in mouse testis following treatment with antidepressant-like substances (ALS) and ALS combined with lipopolysaccharide (LPS). We found that most ALS and activated proteins are associated with the induction of apoptosis. However, when imipramine (IMI) was combined with NS-398 (a cyclooxygenase-2 inhibitor) after LPS administration, we observed a marked increase in the BECLIN1, Bcl-2, ATG16L, and LC3 expression, which are marker proteins of autophagosome formation. The expression of the BECN1 and ATG16L genes was also high compared to the control, indicating the induction of autophagy processes that may potentially protect mouse testicular cells from death and regulate metabolism in the testis. Our findings may provide a better understanding of the stress-related effects of specific ALS on the testis. Video Abstract.
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Affiliation(s)
- Przemysław Sołek
- Department of Biopharmacy, Medical University of Lublin, 4a Chodźki, 20-093, Lublin, Poland
| | - Ewelina Czechowska
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, 2a Kopisto, 35-959, Rzeszow, Poland
| | - Magdalena Sowa-Kućma
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, 2a Kopisto, 35-959, Rzeszow, Poland
| | - Katarzyna Stachowicz
- Maj Institute of Pharmacology Polish Academy of Sciences, 12 Smetna, 31-343, Krakow, Poland
| | - Piotr Kaczka
- PRO-NOO-BIOTICS Sp. z o.o., 39 Warszawska, 35-205, Rzeszow, Poland
| | - Anna Tabęcka-Łonczyńska
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, 2 Sucharskiego, 35-225, Rzeszow, Poland.
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Du J, Huang Z, Li Y, Ren X, Zhou C, Liu R, Zhang P, Lei G, Lyu J, Li J, Tan G. Copper exerts cytotoxicity through inhibition of iron-sulfur cluster biogenesis on ISCA1/ISCA2/ISCU assembly proteins. Free Radic Biol Med 2023:S0891-5849(23)00433-1. [PMID: 37225108 DOI: 10.1016/j.freeradbiomed.2023.05.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Revised: 05/01/2023] [Accepted: 05/15/2023] [Indexed: 05/26/2023]
Abstract
Copper is an essential mineral nutrient that provides the cofactors for some key enzymes. However, excess copper is paradoxically cytotoxic. Wilson's disease is an autosomal recessive hereditary disease characterized by pathological copper accumulation in many organs, with high mortality and disability. Nevertheless, many questions about the molecular mechanism in Wilson's disease remain unknown and there is an imperative need to address these questions to better exploit therapeutic strategy. In this study, we constructed the mouse model of Wilson's disease, ATP7A-/- immortalized lymphocyte cell line and ATP7B knockdown cells to explore whether copper could impair iron-sulfur cluster biogenesis in eukaryotic mitochondria. Through a series of cellular, molecular, and pharmacological analyses, we demonstrated that copper could suppress the assembly of Fe-S cluster, decrease the activity of the Fe-S enzyme and disorder the mitochondrial function both in vivo and in vitro. Mechanistically, we found that human ISCA1, ISCA2 and ISCU proteins have a strong copper-binding activity, which would hinder the process of iron-sulfur assembly. Of note, we proposed a novel mechanism of action to explain the toxicity of copper by providing evidence that iron-sulfur cluster biogenesis may be a primary target of copper toxicity both in cells and mouse models. In summary, the current work provides an in-depth study on the mechanism of copper intoxication and describes a framework for the further understanding of impaired Fe-S assembly in the pathological processes of Wilson's diseases, which helps to develop latent therapeutic strategies for the management of copper toxicity.
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Affiliation(s)
- Jing Du
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Zhaoyang Huang
- Department of Clinical Laboratory, Renmin Hospital of Wuhan University, Wuhan, Hubei, 430060, China
| | - Yanchun Li
- Department of Central Laboratory, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, 310006, China
| | - Xueying Ren
- Department of Laboratory Medicine, The Second Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310005, China
| | - Chaoting Zhou
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Ruolan Liu
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China
| | - Ping Zhang
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Guojie Lei
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China
| | - Jianxin Lyu
- Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China.
| | - Jianghui Li
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China.
| | - Guoqiang Tan
- Key Laboratory of Laboratory Medicine, Ministry of Education, Zhejiang Provincial Key Laboratory of Medical Genetics, College of Laboratory Medicine and Life Sciences, Wenzhou Medical University, Wenzhou, Zhejiang, 325035, China; Laboratory Medicine Center, Department of Clinical Laboratory, Zhejiang Provincial People's Hospital, Affiliated People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, 310014, China.
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Liang Y, Chen Z, Liu Q, Huang H, Meng Z, Gong S, Wang Z, Wang S. A NIR BODIPY-based ratiometric fluorescent probe for HClO detection with high selectivity and sensitivity in real water samples and living zebrafish. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122268. [PMID: 36580754 DOI: 10.1016/j.saa.2022.122268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 11/30/2022] [Accepted: 12/18/2022] [Indexed: 06/17/2023]
Abstract
Hypochlorous acid (HClO) plays an important role in many physiological and pathological activities. In this work, a novel BODIPY-based Near-infrared (NIR) ratiometric fluorescent probe BODIPY-Hyp was designed for the rapid detection of HClO. The probe BODIPY-Hyp was highly selective and sensitive for HClO with a low detection limit of 16.74 nM and short response time of less than 60 s. The probe BODIPY-Hyp in response to HClO exhibited a significant blue-shifted fluorescence emission from 700 nm to 530 nm, and its fluorescence intensity ratio (I530 nm/I700 nm) increased about 1200 times before and after adding HClO. Moreover, the reaction mechanism of BODIPY-Hyp with HClO was verified by HRMS analysis, 1H NMR titration and DFT calculations. Furthermore, BODIPY-Hyp was successfully processed into a portable test strip-based device for the detection of HClO. In addition, the probe BODIPY-Hyp could be used in real time to monitor the levels of HClO in living zebrafish larvae. In conclusion, BODIPY-Hyp has great application potential in the life and environmental sciences.
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Affiliation(s)
- Yueyin Liang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zhen Chen
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qianting Liu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Haiting Huang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zhiyuan Meng
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Shuai Gong
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zhonglong Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Shifa Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Light Industry and Food, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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Osman AG, Avula B, Katragunta K, Ali Z, Chittiboyina AG, Khan IA. Elderberry Extracts: Characterization of the Polyphenolic Chemical Composition, Quality Consistency, Safety, Adulteration, and Attenuation of Oxidative Stress- and Inflammation-Induced Health Disorders. Molecules 2023; 28:molecules28073148. [PMID: 37049909 PMCID: PMC10096080 DOI: 10.3390/molecules28073148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/24/2023] [Accepted: 03/29/2023] [Indexed: 04/05/2023] Open
Abstract
Elderberry is highly reputed for its health-improving effects. Multiple pieces of evidence indicate that the consumption of berries is linked to enhancing human health and preventing or delaying the onset of chronic medical conditions. Compared with other fruit, elderberry is a very rich source of anthocyanins (approximately 80% of the polyphenol content). These polyphenols are the principals that essentially contribute to the high antioxidant and anti-inflammatory capacities and the health benefits of elderberry fruit extract. These health effects include attenuation of cardiovascular, neurodegenerative, and inflammatory disorders, as well as anti-diabetic, anticancer, antiviral, and immuno-stimulatory effects. Sales of elderberry supplements skyrocketed to $320 million over the year 2020, according to an American Botanical Council (ABC) report, which is attributable to the purported immune-enhancing effects of elderberry. In the current review, the chemical composition of the polyphenolic content of the European elderberry (Sambucus nigra) and the American elderberry (Sambucus canadensis), as well as the analytical techniques employed to analyze, characterize, and ascertain the chemical consistency will be addressed. Further, the factors that influence the consistency of the polyphenolic chemical composition, and hence, the consistency of the health benefits of elderberry extracts will be presented. Additionally, adulteration and safety as factors contributing to consistency will be covered. The role of elderberry in enhancing human health alone with the pharmacological basis, the cellular pathways, and the molecular mechanisms underlying the observed health benefits of elderberry fruit extracts will be also reviewed.
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Affiliation(s)
- Ahmed G. Osman
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
| | - Bharathi Avula
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
| | - Kumar Katragunta
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
| | - Zulfiqar Ali
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
| | - Amar G. Chittiboyina
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
| | - Ikhlas A. Khan
- National Center for Natural Products Research, University of Mississippi, University, MS 38677, USA
- Division of Pharmacognosy, Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
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Malaviya R, Gardner CR, Rancourt RC, Smith LC, Abramova EV, Vayas KN, Gow AJ, Laskin JD, Laskin DL. Lung injury and oxidative stress induced by inhaled chlorine in mice is associated with proinflammatory activation of macrophages and altered bioenergetics. Toxicol Appl Pharmacol 2023; 461:116388. [PMID: 36690086 PMCID: PMC9960611 DOI: 10.1016/j.taap.2023.116388] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/11/2023] [Accepted: 01/16/2023] [Indexed: 01/21/2023]
Abstract
Chlorine (Cl2) gas is a highly toxic and oxidizing irritant that causes life-threatening lung injuries. Herein, we investigated the impact of Cl2-induced injury and oxidative stress on lung macrophage phenotype and function. Spontaneously breathing male C57BL/6J mice were exposed to air or Cl2 (300 ppm, 25 min) in a whole-body exposure chamber. Bronchoalveolar lavage (BAL) fluid and cells, and lung tissue were collected 24 h later and analyzed for markers of injury, oxidative stress and macrophage activation. Exposure of mice to Cl2 resulted in increases in numbers of BAL cells and levels of IgM, total protein, and fibrinogen, indicating alveolar epithelial barrier dysfunction and inflammation. BAL levels of inflammatory proteins including surfactant protein (SP)-D, soluble receptor for glycation end product (sRAGE) and matrix metalloproteinase (MMP)-9 were also increased. Cl2 inhalation resulted in upregulation of phospho-histone H2A.X, a marker of double-strand DNA breaks in the bronchiolar epithelium and alveolar cells; oxidative stress proteins, heme oxygenase (HO)-1 and catalase were also upregulated. Flow cytometric analysis of BAL cells revealed increases in proinflammatory macrophages following Cl2 exposure, whereas numbers of resident and antiinflammatory macrophages were not altered. This was associated with increases in numbers of macrophages expressing cyclooxygenase (COX)-2 and inducible nitric oxide synthase (iNOS), markers of proinflammatory activation, with no effect on mannose receptor (MR) or Ym-1 expression, markers of antiinflammatory activation. Metabolic analysis of lung cells showed increases in glycolytic activity following Cl2 exposure in line with proinflammatory macrophage activation. Mechanistic understanding of Cl2-induced injury will be useful in the identification of efficacious countermeasures for mitigating morbidity and mortality of this highly toxic gas.
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Affiliation(s)
- Rama Malaviya
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, USA
| | - Carol R Gardner
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, USA
| | - Raymond C Rancourt
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, USA
| | - Ley Cody Smith
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, USA
| | - Elena V Abramova
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, USA
| | - Kinal N Vayas
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, USA
| | - Andrew J Gow
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, USA
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health and Justice, School of Public Health, Rutgers University, Piscataway, NJ 08854, USA
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, USA.
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10
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Sun Y, Huang C, Jiang Y, Wan Y. Urinary concentrations of fungicide carbendazim's metabolite and associations with oxidative stress biomarkers in young children. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18408-18418. [PMID: 36215016 DOI: 10.1007/s11356-022-23311-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 09/23/2022] [Indexed: 06/16/2023]
Abstract
Carbendazim (CBDZ) is the most widely used fungicide in China. It is ubiquitous in environment and can induce oxidative stress in mammals, while data on occurrence of its metabolite in human urine are scarce, and the relationship between CBDZ and oxidative stress biomarkers (OSBs) in young children has not been examined. The aim of this study was to measure the concentrations of methyl 5-hydroxy-2-benzimidazolecarbamate (5-HBC, the main metabolite of CBDZ in urine) in 390 urine samples collected from 130 healthy young (< 6.6 years old) children from Shenzhen and Wuhan, in south and central China, respectively, and to evaluate the associations of 5-HBC with three selected OSBs (4-HNEMA, 8-OHG, and 8-OHdG, for lipid, RNA, and DNA, respectively). 5-HBC was found in 99.2% of the urine samples at concentrations ranging from below the method detection limit (< 0.005 ng/mL) to 10.9 ng/mL (median: 0.11 ng/mL). Moderate inter-day reproducibility was found for specific gravity-adjusted 5-HBC concentrations (intraclass correlation coefficient: 0.50). The urinary 5-HBC concentrations were significantly and positively associated with 4-HNEMA (p < 0.01). An interquartile range increase in urinary 5-HBC concentrations was associated with a 42.1% increase in 4-HNEMA, which implied that CBDZ exposure might be associated with lipid peroxidation in young children without occupational exposure. As far as we know, this pilot study is the first to report urinary 5-HBC and its associations with OSBs in children.
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Affiliation(s)
- Yanfeng Sun
- Wuhan Centers for Disease Control and Prevention, Institute of Environmental Health, Wuhan, Hubei, 430024, People's Republic of China
| | - Changgang Huang
- Wuhan Centers for Disease Control and Prevention, Institute of Environmental Health, Wuhan, Hubei, 430024, People's Republic of China
| | - Ying Jiang
- Nanshan District Centers for Disease Control and Prevention, Shenzhen, Guangdong, 518054, People's Republic of China
| | - Yanjian Wan
- Wuhan Centers for Disease Control and Prevention, Institute of Environmental Health, Wuhan, Hubei, 430024, People's Republic of China.
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11
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Wang H, Zhang C, Jiang Z, Xu L, Liu Z. Fluorescent phenothiazine-fused boron complexes for ratiometric hypochlorite imaging. Dalton Trans 2023; 52:1393-1398. [PMID: 36637140 DOI: 10.1039/d2dt03824b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Fluorescent hypochlorite probes with ratiometric imaging ability are highly desirable for imaging hypochlorite in biological systems. However, it is still challenging to develop new scaffolds for these probes. In this study, we demonstrate that phenothiazine-fused boron complexes are promising scaffolds for the design of ratiometric fluorescent hypochlorite probes. The synthesized complexes based on the scaffold show ultrafast and ratiometric absorption/fluorescence changes for hypochlorite. We also developed an endoplasmic reticulum-targeting probe and demonstrated that it has excellent real-time imaging ability for both endogenous and exogenous hypochlorite in the endoplasmic reticulum of living cells.
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Affiliation(s)
- Hong Wang
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Changli Zhang
- School of Environmental Science, Nanjing Xiaozhuang University, Nanjing 211171, China
| | - Zhiyong Jiang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Li Xu
- College of Science, Nanjing Forestry University, Nanjing 210037, China.
| | - Zhipeng Liu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China. .,Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
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12
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Hiranmartsuwan P, Wangngae S, Nootem J, Kamkaew A, Daengngern R, Wattanathana W, Chansaenpak K. BODIPY-Based Fluorescent Probes for Selective Visualization of Endogenous Hypochlorous Acid in Living Cells via Triazolopyridine Formation. BIOSENSORS 2022; 12:923. [PMID: 36354432 PMCID: PMC9687994 DOI: 10.3390/bios12110923] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
In this work, the two pyridylhydrazone-tethered BODIPY compounds (2 and 3) were synthesized. These compounds aimed to detect hypochlorous acid (HOCl) species via cyclic triazolopyridine formation. The open forms and the resulting cyclic forms of BODIPYs (2, 3, 4, and 5) were fully characterized by nuclear magnetic resonance, mass spectrometry, infrared spectroscopy, and single-crystal X-ray diffraction. These two probes can selectively detect HOCl through a fluorescence turn-on mechanism with the limit of detections of 0.21 µM and 0.77 µM for compounds 2 and 3, respectively. This fluorescence enhancement phenomenon could be the effect from C = N isomerization inhibition due to HOCl-triggered triazolopyridine formation. In cell imaging experiments, these compounds showed excellent biocompatibility toward RAW 264.7 murine live macrophage cells and greatly visualized endogenous HOCl in living cells stimulated with lipopolysaccharide.
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Affiliation(s)
- Peraya Hiranmartsuwan
- National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani 12120, Thailand
| | - Sirilak Wangngae
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Jukkrit Nootem
- National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani 12120, Thailand
| | - Anyanee Kamkaew
- School of Chemistry, Institute of Science, Suranaree University of Technology, Nakhon Ratchasima 30000, Thailand
| | - Rathawat Daengngern
- Integrated Applied Chemistry Research Unit, King Mongkut’s Institute of Technology Ladkrabang, School of Science, Bangkok 10520, Thailand
| | - Worawat Wattanathana
- Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Ladyao, Chatuchak, Bangkok 10900, Thailand
| | - Kantapat Chansaenpak
- National Nanotechnology Center, National Science and Technology Development Agency, Thailand Science Park, Pathum Thani 12120, Thailand
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13
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Akarca-Dizakar SÖ, Demirel MA, Coşkun Akçay N, Sipahi M, Karakoç Sökmensüer L, Boyunaga H, Köylü A, Ömeroğlu S. The therapeutic effects of coenzyme Q10 on surgically induced endometriosis in Sprague Dawley rats. J OBSTET GYNAECOL 2022; 42:3290-3298. [PMID: 36048875 DOI: 10.1080/01443615.2022.2114322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The aim of this study was to evaluate the effects of coenzyme Q10 in the treatment of endometriosis rat models. Twenty seven Sprague Dawley rats were divided into four groups; Control Group (n = 7; Endometriosis group), Reference Group (n = 6; Endometriosis + Buserelin acetate, 20 mg/kg), CoQ10 Group-I (n = 7; Endometriosis + CoQ10, 50 mg/kg) and CoQ10 Group-II (n = 7; Endometriosis + CoQ10, 100 mg/kg). At the end of the experiment, all the rats were sacrificed, and the volume and histoarchitecture of endometrial implants were evaluated. The mast cells were determined by Toluidine blue and collagen fiber density was analysed by Masson's Trichrome staining. Tumour necrosis factor and vascular endothelial growth factor (VEGF) levels were analysed by enzyme-linked immunosorbent assay in peritoneal fluid and VEGF and matrix metalloproteinase-9 (MMP-9) were evaluated by immunohistochemistry. Terminal deoxynucleotidil transferase-mediated dUTP Nick end labelling (TUNEL) was also used for the detection of apoptotic cells. The CoQ10 treatment significantly decreased the volume of endometriotic implants, VEGF, and MMP-9 immunoreactivity and increased TUNEL-positive cells. The findings of the study suggest that CoQ10 can be used in endometriosis treatment by suppressing the endometriotic implants.IMPACT STATEMENTWhat is already known on this subject? Endometriosis is a gynaecological disorder and previous studies have shown that different treatments with antioxidants cause significant regression in the endometriotic implants.What the results of this study add? In this study, CoQ10 reduced intra-abdominal adhesion scores and volume of the endometriotic implants. In addition, CoQ10 treatment affected mast cell, TNF-α, VEGF, and MMP-9.What of these findings for clinical practice and/or further research? CoQ10 treatments may be possible to apply, it can contribute to science in terms of a new therapeutic treatment for endometriosis. Further studies are required to evaluate the Coenzyme Q10's effects on pain and subfertility in endometriosis.
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Affiliation(s)
| | - Mürşide Ayşe Demirel
- Laboratory Animals Breeding and Experimental Researches Center, Department of Basic Pharmaceutical Sciences, Faculty of Pharmacy Gazi University, Ankara, Turkey
| | - Neslihan Coşkun Akçay
- Department of Obstetrics and Gynecology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Mehmet Sipahi
- Department of Obstetrics and Gynecology, Giresun University Faculty of Medicine, Giresun, Turkey
| | - Lale Karakoç Sökmensüer
- Department of Histology and Embryology, Hacettepe University Faculty of Medicine, Ankara, Turkey
| | - Hakan Boyunaga
- Department of Medical Biochemistry, Faculty of Medicine, Kırıkkale University, Kırıkkale, Turkey
| | - Ayse Köylü
- Department of Histology and Embryology, İstinye University Faculty of Medicine, Ankara, Turkey
| | - Suna Ömeroğlu
- Department of Histology and Embryology, Gazi University Faculty of Medicine, Ankara, Turkey
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14
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Wang X, Zhang J, Cui Y, Wang H, Lu W, Xu L. A Ratiometric Fluorescence Nanoprobe for Ultrafast Imaging of Hypochlorite in Living Cells and Zebrafish. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Strużyńska L, Dąbrowska-Bouta B, Sulkowski G. Developmental neurotoxicity of silver nanoparticles: the current state of knowledge and future directions. Nanotoxicology 2022; 16:1-26. [PMID: 35921173 DOI: 10.1080/17435390.2022.2105172] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/17/2022] [Accepted: 07/20/2022] [Indexed: 10/16/2022]
Abstract
The increasing production and use of silver nanoparticles (AgNPs) as an antimicrobial agent in an array of medical and commercial products, including those designed for infants and children, poses a substantial risk of exposure during the developmental period. This review summarizes current knowledge on developmental neurotoxicity of AgNPs in both pre- and post-natal stages with a focus on the biological specificity of immature organisms that predisposes them to neurotoxic insults as well as the molecular mechanisms underlying AgNP-induced neurotoxicity. The current review revealed that AgNPs increase the permeability of the blood-brain barrier (BBB) and selectively damage neurons in the brain of immature rats exposed pre and postnatally. Among the AgNP-induced molecular mechanisms underlying toxic insult is cellular stress, which can consequently lead to cell death. Glutamatergic neurons and NMDAR-mediated neurotransmission also appear to be a target for AgNPs during the postnatal period of exposure. Collected data indicate also that our current knowledge of the impact of AgNPs on the developing nervous system remains insufficient and further studies are required during different stages of development with investigation of environmentally-relevant doses of exposure.
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Affiliation(s)
- Lidia Strużyńska
- Department of Neurochemistry, Laboratory of Pathoneurochemistry, Mossakowski Medical, Research Institute, Polish Academy of Sciences, Warsaw, Poland
| | - Beata Dąbrowska-Bouta
- Department of Neurochemistry, Laboratory of Pathoneurochemistry, Mossakowski Medical, Research Institute, Polish Academy of Sciences, Warsaw, Poland
| | - Grzegorz Sulkowski
- Department of Neurochemistry, Laboratory of Pathoneurochemistry, Mossakowski Medical, Research Institute, Polish Academy of Sciences, Warsaw, Poland
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16
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A near-infrared ratiometric fluorescent probe with large stokes shift for rapid detection of ClO− in living cells. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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17
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Khalifa MM, Hassan FE, Abdallah H, Bastawy N. Protective effect of grape seed extract against chronic physical stress-induced zona fasciculata injury in male rats: Functional, immunohistochemical and electron microscopic study. Microsc Res Tech 2022; 85:2813-2825. [PMID: 35411989 DOI: 10.1002/jemt.24130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 03/01/2022] [Accepted: 04/02/2022] [Indexed: 11/10/2022]
Abstract
In the present study, we investigated the antioxidant effect of grape seed extract (GSE) against chronic immobilization stress-induced zona fasciculata injury in Wistar male rats. Thirty male rats were divided into three groups: Non-stress group: rats were not subjected to stress protocol and received distilled water orally for 30 days. Stress group: rats received distilled water orally for 15 consecutive days before the induction of chronic immobilization stress experiment (repeated stress for 15 consecutive days), distilled water was continued along with the constant stress experiment. GSE-stress group: rats treated with oral GSE (300 mg/kg), administered orally for 15 consecutive days before the induction of chronic immobilization stress experiment (repeated stress for 15 consecutive days), GSE was continued along with the stress exposure. Chronic stress was induced by placing each animal in a restrainer for 2 h daily for 15 consecutive days in both Stress and GSE-stress groups. The serum corticosterone and adrenal cortex malondialdehyde (MDA) levels were measured as indices of stress. Immunohistochemistry of the inducible nitric oxide synthase (iNOS) as a nitrosative stress marker beside the adrenal cortex's ultrastructure, particularly zona fasciculata, was assessed. Chronic restraint stress significantly elevated the serum corticosterone and adrenal cortex MDA levels, while oral administration of GSE reduced the serum corticosterone level, adrenal cortex MDA levels, and iNOS immunoreactivity in zona fasciculata. Besides, adrenocortical ultrastructure significantly improved. These results suggested that GSE enhanced the antioxidant defense against reactive oxygen species produced under chronic stress conditions, protecting the adrenal cortex.
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Affiliation(s)
- Mohamed Mansour Khalifa
- Department of Medical Physiology, Kasr Al Ainy, Faculty of Medicine, Cairo University, Giza, Egypt.,Department of Medical Physiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Fatma E Hassan
- Department of Medical Physiology, Kasr Al Ainy, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Hanan Abdallah
- Department of Histology, Kasr Al Ainy, Faculty of Medicine, Cairo University, Giza, Egypt
| | - Nermeen Bastawy
- Department of Medical Physiology, Kasr Al Ainy, Faculty of Medicine, Cairo University, Giza, Egypt
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18
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Wang SC, Chang MY, Shiau JP, Farooqi AA, Huang YH, Tang JY, Chang HW. Antiproliferation- and Apoptosis-Inducible Effects of a Novel Nitrated [6,6,6]Tricycle Derivative (SK2) on Oral Cancer Cells. Molecules 2022; 27:1576. [PMID: 35268676 PMCID: PMC8911617 DOI: 10.3390/molecules27051576] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 02/19/2022] [Accepted: 02/25/2022] [Indexed: 12/01/2022] Open
Abstract
The benzo-fused dioxabicyclo[3.3.1]nonane core is the central framework in several natural products. Using this core, we had developed a novel nitrated [6,6,6]tricycle-derived compound containing an n-butyloxy group, namely, SK2. The anticancer potential of SK2 was not assessed. This study aimed to determine the antiproliferative function and investigated possible mechanisms of SK2 acting on oral cancer cells. SK2 preferentially killed oral cancer cells but caused no harmful effect on non-malignant oral cells. After the SK2 exposure of oral cancer cells, cells in the sub-G1 phase accumulated. This apoptosis-like outcome of SK2 treatment was validated to be apoptosis via observing an increasing annexin V population. Mechanistically, apoptosis signalers such as pancaspase, caspases 8, caspase 9, and caspase 3 were activated by SK2 in oral cancer cells. SK2 induced oxidative-stress-associated changes. Furthermore, SK2 caused DNA damage (γH2AX and 8-hydroxy-2'-deoxyguanosine). In conclusion, a novel nitrated [6,6,6]tricycle-derived compound, SK2, exhibits a preferential antiproliferative effect on oral cancer cells, accompanied by apoptosis, oxidative stress, and DNA damage.
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Affiliation(s)
- Sheng-Chieh Wang
- Department of Biomedical Science and Environmental Biology, Ph.D. Program in Life Sciences, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Jun-Ping Shiau
- Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
- Division of Breast Surgery and Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Ammad Ahmad Farooqi
- Institute of Biomedical and Genetic Engineering (IBGE), Islamabad 54000, Pakistan;
| | - Yu-Hsiang Huang
- Post-Graduate Year Training (PGY), Department of Clinical Education and Training, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Jen-Yang Tang
- School of Post-Baccalaureate Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Radiation Oncology, Kaohsiung Medical University Hospital, Kaoshiung Medical University, Kaohsiung 80708, Taiwan
| | - Hsueh-Wei Chang
- Department of Biomedical Science and Environmental Biology, Ph.D. Program in Life Sciences, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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19
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An N, Wang D, Zhao H, Gao Y. A spectroscopic probe for hypochlorous acid detection. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 267:120529. [PMID: 34785148 DOI: 10.1016/j.saa.2021.120529] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
A spectroscopic probe CMBT was synthesized and characterized. CMBT showed the specific recognition for HClO based on the turn-on blue fluorescence and naked-eye change from pink to colorless. NMR, IR, HRMS-ESI, and spectral analysis suggested that colorimetric and fluorescent change of CMBT to HClO originated from the conversion of CMBT to starting material coumarin-aldehyde 1 caused by the oxidization of HClO, which was responsible for the fluorescence recovery. The detection limit was calculated to be 1.61 μM and 6.58 μM for fluorescence and UV-vis analysis with a range up to 1 mM. HClO's fluorescence detection was successfully achieved in tap and river water samples. The prepared convenient paper test strips showed a distinct color change in varying concentrations of HClO. A multi-input molecular logic circuit was constructed.
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Affiliation(s)
- Ning An
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Dan Wang
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Hui Zhao
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China
| | - Yunling Gao
- State Key Laboratory Breeding Base of Green Chemistry Synthesis Technology, College of Chemical Engineering, Zhejiang University of Technology, Hangzhou 310032, China.
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20
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Analysis of 19 urinary biomarkers of oxidative stress, nitrative stress, metabolic disorders, and inflammation using liquid chromatography–tandem mass spectrometry. Anal Bioanal Chem 2022; 414:2103-2116. [PMID: 35013809 PMCID: PMC8747998 DOI: 10.1007/s00216-021-03844-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/23/2021] [Accepted: 12/09/2021] [Indexed: 01/23/2023]
Abstract
Environmental chemical exposures have been associated with cancer, diabetes, hormonal and immunological disorders, and cardiovascular diseases. Some direct effects of chemical exposure that are precursors to adverse health outcomes, including oxidative stress, nitrative stress, hormonal imbalance, neutrophilia, and eosinophilia, can be assessed through the analysis of biomarkers in urine. In this study, we describe a novel methodology for the determination of 19 biomarkers of health effects: malondialdehyde (MDA), 8-isoprostaglandin-F2α (8-PGF2α), 11-β-prostaglandin-F2α (11-PGF2α), 15-prostaglandin-F2α (15-PGF2α), 8-iso-15-prostaglandin-F2α (8,15-PGF2α), 8-hydroxy-2′-deoxyguanosine (8-OHdG), 8-hydroxyguanosine (8-HdG), 8-hydroxyguanine (8-HG), dityrosine (diY), allantoin (Alla), and two metabolic products of 4-hydroxynonenal (HNE), namely 4-hydroxy-2-nonenal glutathione (HNE-GSH) and 4-hydroxy-2-nonenal mercapturic acid (HNE-MA) (in total, 12 oxidative stress biomarkers, OSBs); 8-nitroguanosine (8-NdG), 8-nitroguanine (8-NG), and 3-nitrotyrosine (NY) (3 nitrative stress biomarkers, NSBs); chlorotyrosine (CY) and bromotyrosine (BY) (2 inflammatory biomarkers); and the advanced glycation end-products (AGEs) Nε-carboxymethyllysine (CML) and Nε-carboxyethyllysine (CEL) (2 metabolic disorder biomarkers). Since these biomarkers are trigged by a variety of environmental insults and produced by different biomolecular pathways, their selective and sensitive determination in urine would help broadly elucidate the pathogenesis of diseases mediated by environmental factors.
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21
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Singh M, Verma Y, Rana SVS. Attributes of oxidative stress in the reproductive toxicity of nickel oxide nanoparticles in male rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:5703-5717. [PMID: 34424461 DOI: 10.1007/s11356-021-15657-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 07/22/2021] [Indexed: 06/13/2023]
Abstract
The nanoparticles of nickel are now being widely used in industrial, commercial, and biomedical applications. In recent years, health safety issues posed by them have aroused concerns among health scientists. The aim of the present study was to investigate the role of oxidative stress in male reproductive toxicity induced by nickel oxide nanoparticles in rats. Male Wistar rats (140-170 g) were administered with nickel oxide nanoparticles (NiONPs) (particles size <30 nm) (5 mg/kg body weight) by gavage for 30 days. Its effects on different parameters, viz., sperm count, motility, and morphology, were investigated. DNA damage in sperms was monitored through comet assay. All these observations indicated a spermicidal effect of NiONPs. Results on lipid peroxidation (MDA, H2O2, and NO) and oxidative stress (GSH, GPx, and catalase) thus studied in testes exhibited adverse effects of NiONPs. Histopathological results on male reproductive organs, viz., testis, epididymis, vas deferens, seminal vesicles, and prostate also demonstrated moderate to severe toxicity. A comparison of these results with those obtained on nickel oxide microparticle (NiOMP)-treated rats showed that NiONPs are more toxic than NiOMPs. Furthermore, NiONPs could create an imbalance between oxidants and antioxidants in the testes. It is concluded that redox imbalance in testes constitutes a major mechanism of NiONP-induced reproductive toxicity.
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Affiliation(s)
- Meenu Singh
- Department of Toxicology, Ch. Charan Singh University, Meerut, 250 004, India
| | - Yeshvandra Verma
- Department of Toxicology, Ch. Charan Singh University, Meerut, 250 004, India
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22
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Levings DC, Lacher SE, Palacios-Moreno J, Slattery M. Transcriptional reprogramming by oxidative stress occurs within a predefined chromatin accessibility landscape. Free Radic Biol Med 2021; 171:319-331. [PMID: 33992677 PMCID: PMC8608001 DOI: 10.1016/j.freeradbiomed.2021.05.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 01/16/2023]
Abstract
Reactive oxygen species (ROS) are important signaling molecules in many physiological processes, yet excess ROS leads to cell damage and can lead to pathology. Accordingly, cells need to maintain tight regulation of ROS levels, and ROS-responsive transcriptional reprogramming is central to this process. Although it has long been recognized that oxidative stress leads to rapid, significant changes in gene expression, the impact of oxidative stress on the underlying chromatin accessibility landscape remained unclear. Here, we asked whether ROS-responsive transcriptional reprogramming is accompanied by reprogramming of the chromatin environment in MCF7 human breast cancer cells. Using a time-course exposure to multiple inducers of oxidative stress, we determined that the widespread ROS-responsive changes in gene expression induced by ROS occur with minimal changes to the chromatin environment. While we did observe changes in chromatin accessibility, these changes were: (1) far less numerous than gene expression changes after oxidative stress, and (2) occur within pre-existing regions of accessible chromatin. Transcription factor (TF) footprinting analysis of our ATAC-seq experiments identified 5 TFs or TF families with evidence for ROS-responsive changes in DNA binding: NRF2, AP-1, p53, NFY, and SP/KLF. Importantly, several of these (AP-1, NF-Y, and SP/KLF factors) have not been previously implicated as widespread regulators in the response to ROS. In summary, we have characterized genome-wide changes in gene expression and chromatin accessibility in response to ROS treatment of MCF7 cells, and we have found that regulation of the large-scale transcriptional response to excess ROS is primarily constrained by the cell's pre-existing chromatin landscape.
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Affiliation(s)
- Daniel C Levings
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA
| | - Sarah E Lacher
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA
| | - Juan Palacios-Moreno
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA
| | - Matthew Slattery
- Department of Biomedical Sciences, University of Minnesota Medical School, Duluth, MN, 55812, USA.
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Abstract
Since the industrial revolution, air pollution has become a major problem causing several health problems involving the airways as well as the cardiovascular, reproductive, or neurological system. According to the WHO, about 3.6 million deaths every year are related to inhalation of polluted air, specifically due to pulmonary diseases. Polluted air first encounters the airways, which are a major human defense mechanism to reduce the risk of this aggressor. Air pollution consists of a mixture of potentially harmful compounds such as particulate matter, ozone, carbon monoxide, volatile organic compounds, and heavy metals, each having its own effects on the human body. In the last decades, a lot of research investigating the underlying risks and effects of air pollution and/or its specific compounds on the airways, has been performed, involving both in vivo and in vitro experiments. The goal of this review is to give an overview of the recent data on the effects of air pollution on healthy and diseased airways or models of airway disease, such as asthma or chronic obstructive pulmonary disease. Therefore, we focused on studies involving pollution and airway symptoms and/or damage both in mice and humans.
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24
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Curcumin Decreases Hippocampal Neurodegeneration and Nitro-Oxidative Damage to Plasma Proteins and Lipids Caused by Short-Term Exposure to Ozone. Molecules 2021; 26:molecules26134075. [PMID: 34279415 PMCID: PMC8272084 DOI: 10.3390/molecules26134075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Revised: 06/26/2021] [Accepted: 06/30/2021] [Indexed: 11/25/2022] Open
Abstract
Neurodegeneration is the consequence of harmful events affecting the nervous system that lead to neuronal death. Toxic substances, including air pollutants, are capable of inducing neurodegeneration. Ozone (O3) is the most oxidative toxic pollutant. O3 reacts with cellular components and forms reactive oxygen and nitrogen species, triggering nitro-oxidative damage during short-term exposure. Curcumin (CUR) is a natural phenolic molecule bearing well-documented antioxidant and anti-inflammatory biological activities in diverse experimental models. The aim of this work was to evaluate the effect of preventive dietary administration of CUR against hippocampal neurodegeneration and nitro-oxidative damage caused by short-term exposure to O3. Eighty Wistar male rats were distributed into four experimental groups, twenty rats each: intact control; CUR dietary supplementation without O3 exposure; exposure to 0.7 ppm of O3; and exposed to O3 with CUR dietary supplementation. Five rats from each group were sacrificed at 1, 2, 4, and 8 h of exposure. The CUR dose was 5.6 mg/kg and adjusted according to food consumption. CUR significantly decreased oxidative damage to plasma lipids and proteins, as well as neurodegeneration in CA1 and CA3 hippocampal regions. Concluding, CUR proved effective protection in decreasing neurodegeneration in the hippocampus and prevented systemic oxidative damage.
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25
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Jia X, Wei C, Li Z, Liu L, Wang M, Zhang P, Li X. Selective Imaging of HClO in the Liver Tissue In Vivo Using a Near-infrared Hepatocyte-specific Fluorescent Probe. Chem Asian J 2021; 16:1967-1972. [PMID: 34036742 DOI: 10.1002/asia.202100476] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/22/2021] [Indexed: 12/16/2022]
Abstract
Liver injury is typified by an inflammatory response. Hypochlorous acid (HClO), an important endogenous reactive oxygen species, is regarded as a biomarker associated with liver injury. Near-infrared (NIR) fluorescent probes with the advantage of deep tissue penetrating and low auto-fluorescence interference are more suitable for bioimaging in vivo. Thus, in this work, we designed and synthesized a novel NIR hepatocyte-specific fluorescent probe named NHF. The probe NHF showed fast response (<3 s), large spectral variation, and good selectivity to trace HClO in buffer solution. By employing N-acetylgalactosamine (GalNAc) as the targeting ligand, probe NHF can be actively delivered to the liver tissue of zebrafish and mice. It is important that probe NHF is the first NIR hepatocyte-specific fluorescent probe, which successfully visualized the up-regulation of endogenous HClO in the oxygen-glucose deprivation/reperfusion (OGD/R) model HepG2 cells and dynamically monitored APAP-induced endogenous HClO in the liver tissue of zebrafish and mice.
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Affiliation(s)
- Xu Jia
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Wusi Dong Road 18, Baoding, 071002, P. R. China
| | - Chao Wei
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Wusi Dong Road 18, Baoding, 071002, P. R. China
| | - Zimeng Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Wusi Dong Road 18, Baoding, 071002, P. R. China
| | - Liyan Liu
- Medical Comprehensive Experimental Center, Hebei University, East Road Yuhua 342, Baoding, 071000, P. R. China
| | - Mei Wang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Wusi Dong Road 18, Baoding, 071002, P. R. China
| | - Pingzhu Zhang
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Wusi Dong Road 18, Baoding, 071002, P. R. China
| | - Xiaoliu Li
- Key Laboratory of Medicinal Chemistry and Molecular Diagnosis (Ministry of Education), Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science, Hebei University, Wusi Dong Road 18, Baoding, 071002, P. R. China
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Rosa AC, Corsi D, Cavi N, Bruni N, Dosio F. Superoxide Dismutase Administration: A Review of Proposed Human Uses. Molecules 2021; 26:1844. [PMID: 33805942 PMCID: PMC8037464 DOI: 10.3390/molecules26071844] [Citation(s) in RCA: 59] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 12/12/2022] Open
Abstract
Superoxide dismutases (SODs) are metalloenzymes that play a major role in antioxidant defense against oxidative stress in the body. SOD supplementation may therefore trigger the endogenous antioxidant machinery for the neutralization of free-radical excess and be used in a variety of pathological settings. This paper aimed to provide an extensive review of the possible uses of SODs in a range of pathological settings, as well as describe the current pitfalls and the delivery strategies that are in development to solve bioavailability issues. We carried out a PubMed query, using the keywords "SOD", "SOD mimetics", "SOD supplementation", which included papers published in the English language, between 2012 and 2020, on the potential therapeutic applications of SODs, including detoxification strategies. As highlighted in this paper, it can be argued that the generic antioxidant effects of SODs are beneficial under all tested conditions, from ocular and cardiovascular diseases to neurodegenerative disorders and metabolic diseases, including diabetes and its complications and obesity. However, it must be underlined that clinical evidence for its efficacy is limited and consequently, this efficacy is currently far from being demonstrated.
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Affiliation(s)
- Arianna Carolina Rosa
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (D.C.); (N.C.); (F.D.)
| | - Daniele Corsi
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (D.C.); (N.C.); (F.D.)
| | - Niccolò Cavi
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (D.C.); (N.C.); (F.D.)
| | - Natascia Bruni
- Istituto Farmaceutico Candioli, Strada Comunale di None, 1, 10092 Beinasco, Italy;
| | - Franco Dosio
- Department of Scienza e Tecnologia del Farmaco, University of Turin, Via P. Giuria 9, 10125 Turin, Italy; (D.C.); (N.C.); (F.D.)
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Olaoye AB, Ologunde CA, Molehin OR, Nwankwo I. Comparative Antioxidant Analysis of Moringa oleifera Leaf Extracts from South Western States in Nigeria. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2021. [DOI: 10.1186/s43094-021-00204-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Moringa oleifera is a medicinal plant that ethnobotanical studies have shown its inclusion in treatment of many ailments such as diarrhea, diabetes, epilepsy, wound healing and arthritis. It is a plant that was believed to originate from India but could now be found in both the tropics and the sub-topics. Earlier reports have not addressed the association between the location of plant collection and its antioxidant contents. In this study, Moringa oleifera leaves were collected from 21 locations within the south western states of Nigeria. Leaves from each of the locations were dried and evaluated for total phenols, tannin, saponin and flavonoid. DPPH scavenging activity, nitric oxide scavenging activity and inhibition of lipid peroxidation were also evaluated.
Results
All the parameters analysed showed significant within- and between-group differences. Some locations had greater DPPH scavenging ability than the standard (quercetin).
Conclusion
Environmental parameters like annual precipitation, minimum temperature and maximum temperature, and soil type of the location of the plants showed influence on the level of antioxidant, while further analysis using metaboanalyst showed a notable effect of soil type on the antioxidant activity.
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Chin YT, Tu HP, Lin CY, Kuo PJ, Chiu HC, Liu SH, Lee SY, Fu E. Antioxidants protect against gingival overgrowth induced by cyclosporine A. J Periodontal Res 2021; 56:397-407. [PMID: 33448057 DOI: 10.1111/jre.12832] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 10/27/2020] [Accepted: 12/03/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE We investigated the importance of reactive oxygen species (ROS) on developing gingival overgrowth (GO) and then introduced the antioxidant strategy to prevent, or even reduce GO. BACKGROUND Gingival overgrowth is a common side effect of the patients receiving cyclosporine A (CsA), an immune suppressant. Although it has been broadly investigated, the exact pathogenesis of the induced GO is still uncertain. METHODS We cultured human primary gingival fibroblasts and used animal model of GO to investigate the ameliorative effects of antioxidants on CsA-induced GO. To examine the CsA-induced oxidative stress, associated genes and protein expression, and the overgrown gingiva of rats by using immunocytochemistry, confocal laser scanning microscopy, real-time PCR, ELISA, gelatin zymography, gingival morphological, and immunohistochemical analysis. RESULTS We found for the first time that ROS was responsible for the CsA-induced oxidative stress and TGF-β1 expression in human primary gingival fibroblasts, as well as the GO of rats. The antioxidants (oxidative scavenger of vitamin E and an antioxidative enzyme inducer of hemin) ameliorated CsA-induced pathological and morphological alterations of GO without affected the CsA-suppressed il-2 expression in rats. CsA-induced oxidative stress, HO-1, TGF-β1, and type II EMT were also rescued by antioxidants treatment. CONCLUSIONS We concluded that CsA repetitively stimulating the production of ROS is the cause of CsA-GO which is ameliorated by treating antioxidants, including vitamin E and sulforaphane. Furthermore, the immunosuppressive effect of CsA is not interfered by antioxidant treatments in rats. This finding may thus help the clinician devise better prevention strategies in patients susceptible to GO.
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Affiliation(s)
- Yu-Tang Chin
- School of Dentistry, Taipei Medical University, Taipei, Taiwan.,Center for Teeth Bank and Dental Stem Cell Technology, Taipei Medical University, Taipei, Taiwan.,Department of Dentistry, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Xindian, Taiwan
| | - Hsiao-Pei Tu
- Department of Oral Hygiene, Hsin-Sheng Junior College of Medical Care and Management, Taoyuan City, Taiwan
| | - Chi-Yu Lin
- School of Dentistry, Taipei Medical University, Taipei, Taiwan.,Center for Teeth Bank and Dental Stem Cell Technology, Taipei Medical University, Taipei, Taiwan
| | - Po-Jan Kuo
- Department of Periodontology, School of Dentistry, National Defense Medical Center and Tri-Service General Hospital, Taipei, Taiwan
| | - Hsien-Chung Chiu
- Department of Periodontology, School of Dentistry, National Defense Medical Center and Tri-Service General Hospital, Taipei, Taiwan
| | - Shao-Hsien Liu
- Department of Periodontology, School of Dentistry, National Defense Medical Center and Tri-Service General Hospital, Taipei, Taiwan
| | - Sheng-Yang Lee
- School of Dentistry, Taipei Medical University, Taipei, Taiwan.,Center for Teeth Bank and Dental Stem Cell Technology, Taipei Medical University, Taipei, Taiwan.,Department of Dentistry, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Earl Fu
- Department of Dentistry, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Xindian, Taiwan.,Department of Periodontology, School of Dentistry, National Defense Medical Center and Tri-Service General Hospital, Taipei, Taiwan
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Application of PEG-CdSe@ZnS quantum dots for ROS imaging and evaluation of deoxynivalenol-mediated oxidative stress in living cells. Food Chem Toxicol 2020; 146:111834. [DOI: 10.1016/j.fct.2020.111834] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 10/19/2020] [Accepted: 10/23/2020] [Indexed: 12/23/2022]
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30
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Maskarinec G, Garber AK, Wong MC, Kelly N, Kazemi L, Buchthal SD, Fearnbach N, Heymsfield SB, Shepherd JA. Predictors of liver fat among children and adolescents from five different ethnic groups. Obes Sci Pract 2020; 7:53-62. [PMID: 33680492 PMCID: PMC7909587 DOI: 10.1002/osp4.459] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 09/27/2020] [Accepted: 09/28/2020] [Indexed: 12/21/2022] Open
Abstract
Objectives As rates of obesity around the world have increased, so has the detection of high level of liver fat in children and adolescents. This may put them at risk for cardiovascular disease later in life. This analysis of a cross‐sectional population‐based study of children and adolescents evaluated demographic and lifestyle determinants of percent liver fat. Methods Healthy participants (123 girls and 99 boys aged 5–17 years) recruited by convenience sampling in three locations completed questionnaires, anthropometric measurements, and dual X‐ray absorptiometry and magnetic resonance imaging (MRI) assessment. General linear models were applied to estimate the association of demographic, anthropometric, and dietary factors as well as physical activity with MRI‐based percent liver fat. Results The strongest predictor of liver fat was body mass index (BMI; p < 0.0001); overweight and obesity were associated with 0.5% and 1% higher liver fat levels. The respective adjusted mean percent values were 2.9 (95% CI 2.7, 3.1) and 3.4 (95% CI 3.2, 3.6) as compared to normal weight (2.4; 95% CI 2.3, 2.6). Mean percent liver fat was highest in Whites and African Americans, intermediate in Hispanic, and lowest among Asians and Native Hawaiians/Pacific Islanders (p < 0.0001). Age (p = 0.67), sex (p = 0.28), physical activity (p = 0.74), and diet quality (p = 0.70) were not significantly related with liver fat. Conclusions This study in multiethnic children and adolescents confirms the strong relationship of BMI with percent liver fat even in a population with low liver fat levels without detecting an association with age, sex, and dietary or physical activity patterns.
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Affiliation(s)
| | - Andrea K Garber
- University of California at San Francisco San Francisco California USA
| | | | - Nisa Kelly
- University of Hawaii Cancer Center Honolulu Hawaii USA
| | - Leila Kazemi
- University of Hawaii Cancer Center Honolulu Hawaii USA
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Wang Y, Wang K, Fu J. HDAC6 Mediates Macrophage iNOS Expression and Excessive Nitric Oxide Production in the Blood During Endotoxemia. Front Immunol 2020; 11:1893. [PMID: 32973784 PMCID: PMC7468378 DOI: 10.3389/fimmu.2020.01893] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 07/14/2020] [Indexed: 01/09/2023] Open
Abstract
Excessive nitric oxide (NO) production and NO-mediated nitrative stress contribute to vascular dysfunction, inflammation, and tissue injury in septic shock. New therapeutic targets are urgently needed to provide better control of NO level during septic shock. In the present study, we investigated the role of HDAC6 in the regulation of NO production and nitrative stress in a mouse model of endotoxin-induced septic shock. HDAC6 deficient mice and a specific HDAC6 inhibitor were utilized in our studies. Our data clearly indicate that HDAC6 is an important mediator of NO production in macrophages. HDAC6 mediates NO production through the regulation of iNOS expression in macrophages. HDAC6 up-regulates iNOS expression in macrophages by modulating STAT1 activation and IRF-1 expression. HDAC6 inhibition potently blocked endotoxin-induced STAT1 activation and iNOS expression in macrophages. Furthermore, HDAC6 contributes to excessive NO production and nitrotyrosine level in the blood and promotes iNOS expression in the lung tissues during septic shock. Our data reveal a novel HDAC6/STAT1/iNOS pathway that mediates excessive NO production and nitrative stress in septic shock.
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Affiliation(s)
- Yan Wang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China.,Department of Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY, United States
| | - Ke Wang
- Department of Respiratory and Critical Care Medicine, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Jian Fu
- Department of Toxicology and Cancer Biology, College of Medicine, University of Kentucky, Lexington, KY, United States
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32
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Bejaoui S, Michán C, Telahigue K, Nechi S, Cafsi ME, Soudani N, Blasco J, Costa PM, Alhama J. Metal body burden and tissue oxidative status in the bivalve Venerupis decussata from Tunisian coastal lagoons. MARINE ENVIRONMENTAL RESEARCH 2020; 159:105000. [PMID: 32662434 DOI: 10.1016/j.marenvres.2020.105000] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Revised: 04/24/2020] [Accepted: 04/24/2020] [Indexed: 06/11/2023]
Abstract
Coastal transitional waters are exposed to many anthropogenic threats. This study aims to assess the trace metals' pollution status of transitional waters by evaluating its biological effects in the clam Venerupis decussata. Among the studied sites along the Tunisian littoral, South Tunis and Boughrara were the most impacted, since clams from these two lagoons presented significant differences in: (i) trace metal contents, (ii) in-cell hydrogen peroxide, (iii) enzymatic and non-enzymatic defenses, (iv) damage to lipids and proteins, and (v) protein post-translational modifications. These changes related to evident histopathological traits. PCA showed a clear separation between the digestive gland and gills tissues and illustrated an impact gradient in Tunisian coastal lagoons. Water temperature was revealed as an added natural stressor that, when concurring with high pollution, may jeopardize an ecosystem's health and contribute to the accumulation of hazardous metals in organisms.
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Affiliation(s)
- Safa Bejaoui
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, Spain; Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Biology Department, Faculty of Science of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Carmen Michán
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, Spain
| | - Khaoula Telahigue
- Anatomy and Cytology Service, CHU Mohamed Taher Maamouri Hospital, University Tunis El Manar, Tunis, Tunisia
| | - Salwa Nechi
- Anatomy and Cytology Service, CHU Mohamed Taher Maamouri Hospital, University Tunis El Manar, Tunis, Tunisia
| | - Mhamed El Cafsi
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Biology Department, Faculty of Science of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Nejla Soudani
- Laboratory of Ecology, Biology and Physiology of Aquatic Organisms, Biology Department, Faculty of Science of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| | - Julián Blasco
- Dpt. Ecology and Coastal Management, ICMAN-CSIC, Campus Rio San Pedro, E-11510, Puerto Real (Cadiz), Spain
| | - Pedro M Costa
- UCIBIO - Applied Molecular Biosciences Unit, Departamento de Ciências da Vida, Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, 2829-516, Caparica, Portugal
| | - José Alhama
- Departamento de Bioquímica y Biología Molecular, Campus de Excelencia Internacional Agroalimentario CeiA3, Universidad de Córdoba, Campus de Rabanales, Edificio Severo Ochoa, E-14071, Córdoba, Spain.
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Tang Y, Li Y, Liu L, Ni H, Han J, Wang L, Mao Y, Ni L, Wang Y. A water-soluble colorimetric and fluorescent probe for rapidly sensing of ClO− in organisms. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112166] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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34
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Zhao Y, Xue Y, Sun J, Xuan H, Xu Y, Cui Y, Dong J. A new red fluorescent probe based on rosamine–phenothiazine for the highly selective and rapid detection of hypochlorite and its bioimaging in live cells. NEW J CHEM 2020. [DOI: 10.1039/d0nj02945a] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new red fluorescent probe based on rosamine–phenothiazine for highly selective and rapid detection of hypochlorite and its bioimaging in live cells.
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Affiliation(s)
- Yun Zhao
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | | | - Juanjuan Sun
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Hongli Xuan
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Yunli Xu
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Yapeng Cui
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
| | - Jinlong Dong
- Department of Chemistry
- Taiyuan Normal University
- Jinzhong 030619
- China
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35
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Xu XH, Liu C, Mei Y, Song QH. BODIPY-based selenides as fluorescent probes for rapid, sensitive and mitochondria-specific detection of hypochlorous acid. J Mater Chem B 2019; 7:6861-6867. [PMID: 31613291 DOI: 10.1039/c9tb01641d] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Hypochlorous acid (HClO) is a powerful microbicidal agent in the innate immue system; however, abnormal HClO levels can cause tissue damage and many diseases. Thus, it is vitally important to develop facile, rapid and accurate analytical methods for the detection of HClO/ClO-in vitro and in vivo. In this work, we have constructed three meso-substituted BODIPY selenides with different hydrocarbyl groups (ethyl for BSe-Et, benzyl for BSe-Bz and phenyl for BSe-Ph) as fluorescent probes for the detection of HClO/ClO-. All three non-fluorescent probes can sense HClO/ClO- to form fluorescent selenoxides by blocking the photo-induced electron transfer process. Their sensing properties display a clear relationship with the structure of the hydrocarbyl. The sensing reactivity is heavily dependent on the electron-donating ability of hydrocarbyls, with the order of the response time as BSe-Et (2 s) < BSe-Bz (5 s) ≪ BSe-Ph (>100 s). Both BSe-Et and BSe-Bz afford a large fluorescence response and very low detection limits (0.3 nM and 0.8 nM), and BSe-Bz displays a higher selectivity over BSe-Et. Finally, as a representative, BSe-Bz was successfully applied to the detection of exo- and endogenous HClO in living cells, and demonstrated to be a mitochondria-localized fluorescent probe.
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Affiliation(s)
- Xiang-Hong Xu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
| | - Chao Liu
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China. and School of Chemistry and Chemical Engineering, Suzhou University, Suzhou 234000, P. R. China
| | - Yuan Mei
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
| | - Qin-Hua Song
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, P. R. China.
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Wu D, Chen L, Xu Q, Chen X, Yoon J. Design Principles, Sensing Mechanisms, and Applications of Highly Specific Fluorescent Probes for HOCl/OCl .. Acc Chem Res 2019; 52:2158-2168. [PMID: 31318529 DOI: 10.1021/acs.accounts.9b00307] [Citation(s) in RCA: 197] [Impact Index Per Article: 39.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Hypochlorous acid/hypochlorite (HOCl/OCl-), one of the most important reactive oxygen species (ROS), plays vital roles in various physiological and pathological processes. At normal concentrations, OCl- acts as part of an immune defense system by destroying invasive bacteria and pathogens. However, nonproperly located or excessive amounts of OCl- are related to many diseases, including cancers. Thus, detection of OCl- has great importance. Owing to their high sensitivities, selectivities, fast response times, technical simplicities, and high temporal and spatial resolution, fluorescent probes are powerful tools for in vitro and in vivo sensing of target substances. This Account focuses on the development of new chemosensors for detection of OCl-, which operate by undergoing a chemical reaction with this ROS in conjunction with a change in emission properties. As part of the presentation, we first introduce several important factors that need to be considered in the design of fluorescent chemosensors for OCl-, including fluorophores, reaction groups, cosolvents, and buffers. Discussion here revolves around the need to select fluorophores that resist oxidation by OCl-. As well, attention is given to the sensitivities and selectivities of groups in the sensors that react with OCl- to trigger a fluorescence response. Moreover, well-known reaction groups, which react with highly reactive ROS (hROS), have been redesigned to be specific for OCl-. In addition, it is pointed out that several cosolvents and buffers such as DMSO and HEPES are not suitable for use in systems for the detection of OCl- because they are readily oxidized by this ROS. We further discuss recent investigations carried out by us and others aimed at the development of fluorescent probes for in vitro and in vivo detection of OCl-. These efforts led to the new "dual lock" strategy for designing OCl- chemosensors as well as several new specific reaction groups such as imidazoline-2-thiones and imidazoline-2-boranes. Probes created using this strategy and the new reacting groups have been successfully applied to imaging exogenous and endogenous OCl- in live cells and/or tissues. The design concepts and strategies emanating from our studies of fluorescent OCl- probes have provided insight into the general field of fluorescent probes. Despite the progress made thus far, challenges still remain in developing and applying fluorescent OCl- probes. For example, more highly specific and sensitive fluorescent OCl- probes are still in great demand for studies of the biological roles played by OCl-. Thus, interdisciplinary collaborations of chemists, biologists, and medical practitioners are needed to drive future developments of OCl- probes for disease diagnosis and drug screening.
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Affiliation(s)
- Di Wu
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Liyan Chen
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
| | - Qingling Xu
- School of Chemical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoqiang Chen
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, China
| | - Juyoung Yoon
- Department of Chemistry and Nano Science, Ewha Womans University, Seoul 03760, Korea
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Therapeutic effects of resveratrol in Escherichia coli-induced rat endometritis model. Naunyn Schmiedebergs Arch Pharmacol 2019; 392:1577-1589. [PMID: 31367863 DOI: 10.1007/s00210-019-01696-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 07/12/2019] [Indexed: 12/22/2022]
Abstract
Endometritis is an inflammatory disorder of the endometrial lining of the uterine tissue in postpartum stage. Endometritis mostly progresses subclinically and causes infertility through the disruption of the hormonal balance. It has been shown in many studies that resveratrol has anti-inflammatory and antioxidant properties. However, the possible beneficial effects of resveratrol in endometritis have not been determined yet. The aim of the present study is to evaluate the treatment potential of resveratrol in an experimentally induced endometritis model in rats. Endometritis was induced in 12-week-old female, nonpregnant, Sprague Dawley rats. The animals were divided into six groups: control (NaCl 0.9%) and endometritis (NaCl 0.9%), marbofloxacin + PGF2α, marbofloxacin, marbofloxacin + resveratrol, and resveratrol groups. To induce endometritis, 5 mg/kg/s.c. progesterone was given for 5 days, and then Escherichia coli (50 μl, 1 × 105 cfu/rat) was injected in the right cornu uteri following laparotomy. Sixteen hours after bacterial inoculation, the treatment protocol was applied for 14 days. At the end of the experiment, the total oxidant status (TOS) and total antioxidant status (TAS) were examined spectrophotometrically in uterus tissues. The severity of inflammation in uterus samples and follicular activity in ovarian tissues were histopathologically evaluated. In addition, serum cytokine levels were determined. While TAS in uterine tissue significantly increased in the resveratrol group when compared to that of the other groups (p < 0.05), there was no difference between the groups in TOS (p > 0.05). The inflammation of the endometrium and the numbers of corpus luteum in the endometritis group were highly significant when compared to those of the other groups (p < 0.05). The recovery of inflammation and follicular activity were similar to those of the other groups in resveratrol group. However, it was realized that resveratrol administration reduced serum cytokine levels. According to the results of the current study, resveratrol was found to be effective in the treatment of endometritis with its antioxidant and anti-inflammatory functions.
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Gong YJ, Lv MK, Zhang ML, Kong ZZ, Mao GJ. A novel two-photon fluorescent probe with long-wavelength emission for monitoring HClO in living cells and tissues. Talanta 2019; 192:128-134. [DOI: 10.1016/j.talanta.2018.08.089] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 08/27/2018] [Accepted: 08/31/2018] [Indexed: 01/25/2023]
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Feng H, Wang Y, Liu J, Zhang Z, Yang X, Chen R, Meng Q, Zhang R. A highly specific fluorescent probe for rapid detection of hypochlorous acidin vivoand in water samples. J Mater Chem B 2019. [DOI: 10.1039/c9tb00551j] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the development of a new chromogenic and fluorogenic probe for the detection of HOCl in zebrafish, mice with arthritis and environmental water samples.
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Affiliation(s)
- Huan Feng
- School of Chemical Engineering
- University of Science and Technology Liaoning
- Anshan
- P. R. China
| | - Yue Wang
- School of Chemical Engineering
- University of Science and Technology Liaoning
- Anshan
- P. R. China
| | - Jianping Liu
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
| | - Zhiqiang Zhang
- School of Chemical Engineering
- University of Science and Technology Liaoning
- Anshan
- P. R. China
| | - Xinyi Yang
- School of Chemical Engineering
- University of Science and Technology Liaoning
- Anshan
- P. R. China
| | - Rong Chen
- School of Chemical Engineering
- University of Science and Technology Liaoning
- Anshan
- P. R. China
| | - Qingtao Meng
- School of Chemical Engineering
- University of Science and Technology Liaoning
- Anshan
- P. R. China
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology
- The University of Queensland
- Brisbane
- Australia
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Meng X, Shi Y, Chen Z, Song L, Zhao M, Zou L, Liu S, Huang W, Zhao Q. Extending Hypochlorite Sensing from Cells to Elesclomol-Treated Tumors in Vivo by Using a Near-Infrared Dual-Phosphorescent Nanoprobe. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35838-35846. [PMID: 30260621 DOI: 10.1021/acsami.8b14717] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Reactive oxygen species (ROS), when beyond the threshold, can exhaust the capacity of cellular antioxidants and ultimately trigger cell apoptosis in tumor biology. However, the roles of hypochlorite (ClO-) in this process are much less clear compared with those of ROS, and its detection is easily obstructed by tissue penetration and endogenous fluorophores. Herein, we first synthesized a near-infrared (NIR) ratiometric ClO- probe (Ir NP) composed of two kinds of phosphorescent iridium(III) complexes (Ir1 and Ir2) encapsulated with amphiphilic DSPE-mPEG5000. Ir NPs are dual-emissive and show obvious changes in phosphorescence intensity ratios and lifetimes of two emission bands upon exposure to ClO-. During the ClO- detection, ratiometric photoluminescence imaging is much more reliable over the intensity-based one for its self-calibration, while time-resolved photoluminescence imaging (TRPI) could distinguish the phosphorescence with long lifetime of Ir NPs from short-lived autofluorescence of tissues, resulting in the high accuracy of ClO- determination. With NIR emission, a long phosphorescence lifetime, fast response, and excellent biocompatibility, Ir NPs were applied to the detection of ClO- in vitro and in vivo by means of ratiometric phosphorescence imaging and TRPI with high signal-to noise-ratios (SNR). Importantly, we demonstrated the elevated ClO- in elesclomol-stimulated tumors in living mice for the first time, which holds great potential for the visualization of the boost of ClO- in anti-carcinogen-treated tumors and the further investigation of ROS-related oncotherapeutics.
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Affiliation(s)
- Xiangchun Meng
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
| | - Yuxiang Shi
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
| | - Zejing Chen
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
| | - Linna Song
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
| | - Menglong Zhao
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
| | - Liang Zou
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
| | - Shujuan Liu
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
| | - Wei Huang
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
- Shaanxi Institute of Flexible Electronics (SIFE) , Northwestern Polytechnical University (NPU) , Xi'an 710072 , Shaanxi , China
| | - Qiang Zhao
- Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors, Institute of Advanced Materials (IAM) , Nanjing University of Posts and Telecommunications (NUPT) , Nanjing 210023 , PR China
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Shi YS, Li CB, Li XY, Wu J, Li Y, Fu X, Zhang Y, Hu WZ. Fisetin Attenuates Metabolic Dysfunction in Mice Challenged with a High-Fructose Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:8291-8298. [PMID: 30040414 DOI: 10.1021/acs.jafc.8b02140] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Excess fructose consumption can lead to metabolic syndrome, including insulin resistance, dyslipidemia, and hepatic injury, which are associated with oxidative stress and inflammation. The present study was to investigate whether fisetin improved multiple disturbances induced by fructose consumption. First, fisetin was found to be nontoxic to mice after an 8 week treatment. Second, the mice fed with a high-fructose (HFru)-diet for 8 weeks exhibited insulin resistance, dyslipidemia, hepatic injury, oxidative stress, and inflammation. Fisetin supplementation effectively improved the undesirable results mentioned above when compared to the HFru group. Meanwhile, fisetin significantly suppressed the nuclear factor κ-light-chain-enhancer of activated B cells (NF-κB) pathway and activated the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway in mice fed with HFru. Our findings demonstrated that fisetin exerted the beneficial effects in HFru-feeding mice, which might be associated with suppression of NF-κB and activation of the Nrf2 pathway.
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Affiliation(s)
- Yu-Sheng Shi
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science , Dalian Nationalities University , Dalian , Liaoning 116600 , People's Republic of China
| | - Chun-Bin Li
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science , Dalian Nationalities University , Dalian , Liaoning 116600 , People's Republic of China
| | - Xiao-Ying Li
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science , Dalian Nationalities University , Dalian , Liaoning 116600 , People's Republic of China
| | - Jiao Wu
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science , Dalian Nationalities University , Dalian , Liaoning 116600 , People's Republic of China
| | - Yang Li
- Key Laboratory of Biotechnology and Bioresources Utilization, Ministry of Education, College of Life Science , Dalian Nationalities University , Dalian , Liaoning 116600 , People's Republic of China
| | - Xin Fu
- Department of Pharmacognosy , Heilongjiang University of Chinese Medicine , Harbin , Heilongjiang 150040 , People's Republic of China
| | - Yan Zhang
- Jiamusi College , Heilongjiang University of Chinese Medicine , Jiamusi , Heilongjiang 154007 , People's Republic of China
| | - Wen-Zhong Hu
- Jiamusi College , Heilongjiang University of Chinese Medicine , Jiamusi , Heilongjiang 154007 , People's Republic of China
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Nanda H, García Sakai V, Khodadadi S, Tyagi MS, Schwalbach EJ, Curtis JE. Relaxation dynamics of saturated and unsaturated oriented lipid bilayers. SOFT MATTER 2018; 14:6119-6127. [PMID: 29998268 PMCID: PMC6262841 DOI: 10.1039/c7sm01720k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
We present experimental measurements and analysis of the dynamics and the phase behaviour of saturated DMPC and unsaturated DOPC oriented multi-lamellar bilayers. Elastic and inelastic neutron scattering were used to directly probe the dynamical processes of these membrane systems on time and length scales relevant to the internal and localized motion of lipid monomers. Mobility in this regime can be informative in elucidating the local interactions responsible for material properties of these fluid lipid systems. DMPC and DOPC are structurally similar in terms of their membrane hydrophobic thickness; however, they exhibit different mechanical properties in terms of both elastic compressibility and bending moduli. The analyses suggest that the constraint imposed by the double bonds in DOPC acyl chains restricts atomic motion in both liquid and gel phases compared to DMPC. We discuss applications of molecular dynamics to further elucidate the atomic details of the dynamical processes. Such an understanding may suggest how membrane properties can be tuned using a variety of different lipid species.
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Affiliation(s)
- Hirsh Nanda
- NIST Center for Neutron Research, National Institute of Standards and Technology, 100 Bureau Drive, Mail Stop 6102, Gaithersburg, MD 20899, USA.
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Kim BG, Lee PH, Lee SH, Park CS, Jang AS. Impact of ozone on claudins and tight junctions in the lungs. ENVIRONMENTAL TOXICOLOGY 2018; 33:798-806. [PMID: 29673049 DOI: 10.1002/tox.22566] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 03/28/2018] [Accepted: 04/01/2018] [Indexed: 06/08/2023]
Abstract
Claudins (CLDNs) are a major transmembrane protein component of tight junctions (TJs) in endothelia and epithelia. CLDNs are not only essential for sustaining the role of TJs in cell permeability but are also vital for cell signaling through protein-protein interactions. Ozone induces oxidative stress and lung inflammation in humans and experimental models, but the impact of ozone on claudins remains poorly understood. This study was to determine the expression of TJ proteins, such as claudin 3, 4, 5, and 14 following ozone exposure. Mice were exposed to 0.1, 1, or 2 ppm of ozone or ambient air for 6 h for 3 days. The impact of ozone on CLDNs, Nrf2, Keap1, and reactive oxygen species (ROS) were estimated using immunoblotting, immunohistochemical staining, confocal imaging, and ELISA analysis in mice and bronchial epithelial cells. Mice exposed to ozone experienced increased airway inflammatory cell infiltration and bronchial hyper-responsiveness compared to control mice. Additionally, CLDN3, CLDN4, ROS, Nrf2, and Keap1 protein expression increased, and lung CLDN14 protein expression decreased, in mice exposed to ozone compared with control mice. These results indicate that CLDNs are involved in airway inflammation following ozone exposure, suggesting that ozone affects TJ proteins through oxidative mechanisms.
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Affiliation(s)
- Byeong-Gon Kim
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro Wonmi-gu, Bucheon, 14584, Korea
| | - Pureun-Haneul Lee
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro Wonmi-gu, Bucheon, 14584, Korea
| | - Sun-Hye Lee
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro Wonmi-gu, Bucheon, 14584, Korea
| | - Choon-Sik Park
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro Wonmi-gu, Bucheon, 14584, Korea
| | - An-Soo Jang
- Division of Allergy and Respiratory Medicine, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital, 170 Jomaru-ro Wonmi-gu, Bucheon, 14584, Korea
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Lim J, Luderer U. Glutathione deficiency sensitizes cultured embryonic mouse ovaries to benzo[a]pyrene-induced germ cell apoptosis. Toxicol Appl Pharmacol 2018; 352:38-45. [PMID: 29800640 DOI: 10.1016/j.taap.2018.05.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 05/01/2018] [Accepted: 05/21/2018] [Indexed: 10/16/2022]
Abstract
Mice lacking the modifier subunit of glutamate cysteine ligase (Gclm), the rate-limiting enzyme in glutathione (GSH) synthesis, have decreased tissue GSH. We previously showed that Gclm-/- embryos have increased sensitivity to the prenatal in vivo ovarian toxicity of the polycyclic aromatic hydrocarbon benzo[a]pyrene (BaP) compared with Gclm+/+ littermates. We also showed that BaP-induced germ cell death in cultured wild type embryonic ovaries is caspase-dependent. Here, we hypothesized that GSH deficiency increases sensitivity of cultured embryonic ovaries to BaP-induced germ cell death. 13.5 days post coitum (dpc) embryonic ovaries of all Gclm genotypes were fixed immediately or cultured for 24 h in media supplemented with DMSO vehicle or 500 ng/ml BaP. The percentage of activated caspase-3 positive germ cells varied significantly among groups. Within each genotype, DMSO and BaP-treated groups had increased germ cell caspase-3 activation compared to uncultured. Gclm+/- ovaries had significantly increased caspase-3 activation with BaP treatment compared to DMSO, and caspase-3 activation increased non-significantly in Gclm-/- ovaries treated with BaP compared to DMSO. There was no statistically significant effect of BaP treatment on germ cell numbers at 24 h, consistent with our prior observations in wild type ovaries, but Gclm-/- ovaries in both cultured groups had lower germ cell numbers than Gclm+/+ ovaries. There were no statistically significant BaP-treatment or genotype-related differences among groups in lipid peroxidation and germ cell proliferation. These data indicate that Gclm heterozygous or homozygous deletion sensitizes embryonic ovaries to BaP- and tissue culture-induced germ cell apoptosis.
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Affiliation(s)
- Jinhwan Lim
- Department of Medicine, University of California Irvine, Irvine, CA 92617, United States
| | - Ulrike Luderer
- Department of Medicine, University of California Irvine, Irvine, CA 92617, United States; Department of Developmental and Cell Biology, University of California Irvine, Irvine, CA 92617, United States; Program in Public Health, University of California Irvine, Irvine, CA 92617, United States.
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Bai D, Li Q, Xiong Y, Wang C, Shen P, Bai L, Yuan L, Wu P. Hepatic, Metabolic, and Toxicity Evaluation of Repeated Oral Administration of SnS2 Nanoflowers in Mice. Toxicol Sci 2018; 164:501-511. [DOI: 10.1093/toxsci/kfy104] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Disi Bai
- Department of Applied Physics, Institute of Advanced Materials Physics, Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Faculty of Science, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Qingzhao Li
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063000, People’s Republic of China
| | - Yanjie Xiong
- Department of Pathology, North China University of Science and Technology Affiliated Hospital, Tangshan, Hebei 063000, People’s Republic of China
| | - Chao Wang
- Department of Applied Physics, Institute of Advanced Materials Physics, Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Faculty of Science, Tianjin University, Tianjin 300072, People’s Republic of China
| | - Peijun Shen
- Center of Environmental Monitoring of Tangshan, Tangshan, Hebei 063000, People’s Republic of China
| | - Liyuan Bai
- Tangshan Environmental Monitoring Center of Heibei Province, Tangshan, Hebei 063000, People’s Republic of China
| | - Lu Yuan
- School of Public Health, North China University of Science and Technology, Tangshan, Hebei 063000, People’s Republic of China
| | - Ping Wu
- Department of Applied Physics, Institute of Advanced Materials Physics, Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, Faculty of Science, Tianjin University, Tianjin 300072, People’s Republic of China
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Cebpd Is Essential for Gamma-Tocotrienol Mediated Protection against Radiation-Induced Hematopoietic and Intestinal Injury. Antioxidants (Basel) 2018; 7:antiox7040055. [PMID: 29642403 PMCID: PMC5946121 DOI: 10.3390/antiox7040055] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 04/02/2018] [Accepted: 04/03/2018] [Indexed: 02/06/2023] Open
Abstract
Gamma-tocotrienol (GT3) confers protection against ionizing radiation (IR)-induced injury. However, the molecular targets that underlie the protective functions of GT3 are not yet known. We have reported that mice lacking CCAAT enhancer binding protein delta (Cebpd−/−) display increased mortality to IR due to injury to the hematopoietic and intestinal tissues and that Cebpd protects from IR-induced oxidative stress and cell death. The purpose of this study was to investigate whether Cebpd mediates the radio protective functions of GT3. We found that GT3-treated Cebpd−/− mice showed partial recovery of white blood cells compared to GT3-treated Cebpd+/+ mice at 2 weeks post-IR. GT3-treated Cebpd−/− mice showed an increased loss of intestinal crypt colonies, which correlated with increased expression of inflammatory cytokines and chemokines, increased levels of oxidized glutathione (GSSG), S-nitrosoglutathione (GSNO) and 3-nitrotyrosine (3-NT) after exposure to IR compared to GT3-treated Cebpd+/+ mice. Cebpd is induced by IR as well as a combination of IR and GT3 in the intestine. Studies have shown that granulocyte-colony stimulating factor (G-CSF), mediates the radioprotective functions of GT3. Interestingly, we found that IR alone as well as the combination of IR and GT3 caused robust augmentation of plasma G-CSF in both Cebpd+/+ and Cebpd−/− mice. These results identify a novel role for Cebpd in GT3-mediated protection against IR-induced injury, in part via modulation of IR-induced inflammation and oxidative/nitrosative stress, which is independent of G-CSF.
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Bariani MV, Correa F, Leishman E, Domínguez Rubio AP, Arias A, Stern A, Bradshaw HB, Franchi AM. Resveratrol protects from lipopolysaccharide-induced inflammation in the uterus and prevents experimental preterm birth. Mol Hum Reprod 2018; 23:571-581. [PMID: 28810692 DOI: 10.1093/molehr/gax036] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 06/27/2017] [Indexed: 12/31/2022] Open
Abstract
STUDY QUESTION Is resveratrol able to prevent the lipopolysaccharide (LPS)-induced preterm labor in 15-day pregnant BALB/c mice? SUMMARY ANSWER Resveratrol prevented the LPS-induced onset of preterm labor in 64% of the cases and showed anti-inflammatory and tocolytic effects by downregulating COX-2 and iNOS expression and NOS activity, and by changing the uterine prostaglandin and endocannabinoid profiling. WHAT IS KNOWN ALREADY Genital tract infections by Gram-negative bacteria are a common complication in human pregnancy and have been shown to increase risk of preterm delivery. Bacterial LPS elicits a strong maternal inflammatory response that results in preterm delivery and fetal death in a murine model endotoxin-induced preterm labor. STUDY DESIGN, SIZE, DURATION An in vivo animal study was conducted. On Day 15 of pregnancy, mice received at 8:00 h a dose of vehicle (40% ethanol in saline solution) or resveratrol (3 mg/kg in vehicle) via oral gavage followed by two doses of LPS or vehicle administered intraperitoneally (i.p.), the first one at 10:00 h (0.17 mg/kg in 0.1 ml of sterile saline solution) and the second at 13:00 h (0.5 mg/kg in 0.1 ml of sterile saline solution). The mice were closely observed for any signs of morbidity (piloerection, decreased movement, and diarrhea), vaginal bleeding or preterm delivery. The beginning of preterm delivery was defined by early delivery of the first pup. Normal term labor occurs on Day 19 of gestation. PARTICIPANTS/MATERIALS, SETTING, METHODS Time of labor, pregnancy outcome and morphological features were evaluated after LPS and/or resveratrol administration. Uterine stripes were collected 5 h after the last LPS injection and prostaglandin and endocannabinoid profiling was analyzed by mass spectrometry. Nitric oxide synthase (NOS) activity was measured by radioconversion assay. Cyclooxygenase-2 (Cox-2) and 15-hydroxyprostaglandin dehydrogenase (15-Pgdh) mRNA levels were analyzed by RT-PCR whilst the protein expression of inducible nitric oxide synthase (iNOS), COX-1 and COX-2 were studied by western blot. MAIN RESULTS AND THE ROLE OF CHANCE In vivo treatment of 15-day pregnant BALB/c mice with resveratrol prevented the LPS-induced preterm birth in 64% of the cases, whereas only 15% of mice with LPS alone escaped preterm birth. Treatment with resveratrol resulted in a reduced NOS activity (P < 0.05) in the uterus of LPS-treated mice. Similarly, resveratrol reduced the expression of LPS-induced pro-inflammatory agents such as iNOS (P < 0.05), COX-2 (P < 0.05), prostaglandin E2 (PGE2) (P < 0.05) and anandamide (AEA) (P < 0.05). Moreover, resveratrol administration resulted in changes in the uterine endocannabinoid profiling altered by LPS. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION Since our experimental design involves the use of mice, the extrapolation of the results presented here to humans is limited. WIDER IMPLICATIONS OF THE FINDINGS Our findings provide evidence for the tocolytic effects of resveratrol. STUDY FUNDING AND COMPETING INTEREST(S) Dr Ana María Franchi was funded by Agencia Nacional para la Promoción Científica y Tecnológica (PICT 2013/0097) and by Consejo Nacional de Investigaciones Científicas y Técnicas (PIP 2012/0061). Dr Heather B. Bradshaw was funded by NIH (DA006668). The authors have no competing interests.
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Affiliation(s)
- María Victoria Bariani
- Consejo Nacional de Investigaciones Científicas y Técnicas, Laboratorio de Fisiopatología de la Preñez y el Parto, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Fernando Correa
- Consejo Nacional de Investigaciones Científicas y Técnicas, Laboratorio de Fisiopatología de la Preñez y el Parto, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Emma Leishman
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana,USA
| | - Ana Paula Domínguez Rubio
- Consejo Nacional de Investigaciones Científicas y Técnicas, Laboratorio de Fisiopatología de la Preñez y el Parto, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Andreína Arias
- Consejo Nacional de Investigaciones Científicas y Técnicas, Laboratorio de Fisiopatología de la Preñez y el Parto, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Aníbal Stern
- Consejo Nacional de Investigaciones Científicas y Técnicas, Laboratorio de Fisiopatología de la Preñez y el Parto, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
| | - Heather B Bradshaw
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, Indiana,USA
| | - Ana María Franchi
- Consejo Nacional de Investigaciones Científicas y Técnicas, Laboratorio de Fisiopatología de la Preñez y el Parto, Centro de Estudios Farmacológicos y Botánicos (CEFyBO), Facultad de Medicina, Universidad de Buenos Aires, Ciudad Autónoma de Buenos Aires, Argentina
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Long-Term Resveratrol Supplementation as a Secondary Prophylaxis for Stroke. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2018; 2018:4147320. [PMID: 29743980 PMCID: PMC5878880 DOI: 10.1155/2018/4147320] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 01/28/2018] [Accepted: 02/05/2018] [Indexed: 01/02/2023]
Abstract
Stroke is a leading cause of mortality worldwide, as well as a source of long-term disabilities and huge socioeconomic costs. This study investigates the effects of resveratrol, an antioxidant supplement, on blood pressure, weight status, glucose, and lipid profile in patients who had a stroke in the last 12 months. Two hundred and twenty-eight patients were divided into three groups: group I received only allopathic treatment (control group), while groups II and III received allopathic treatment with a daily supplementation of oral resveratrol (100 and 200 mg, resp.) for 12 months. In all groups, the changes of the studied parameters were monitored at 6 and 12 months from the initial evaluation. In groups II and III, resveratrol induced significant changes (p < 0.05) in the blood pressure, body mass index, as well as all parameters of the lipid profile, and glucose (in nondiabetic patients), compared to the control group. The supplementation of the allopathic treatment with resveratrol had a beneficial effect on all monitored parameters, which serve as major risk factors for stroke.
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Strużyńska L, Skalska J. Mechanisms Underlying Neurotoxicity of Silver Nanoparticles. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 1048:227-250. [PMID: 29453542 DOI: 10.1007/978-3-319-72041-8_14] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The potent antimicrobial properties of nanoparticulate silver (AgNPs) have led to broad interest in using them in a wide range of commercial and medical applications. Although numerous in vivo and in vitro studies have provided evidence of toxic effects, rapid commercialization of AgNP-based nanomaterials has advanced without characterization of their potential environmental and health hazards. There is evidence that AgNPs can be translocated from the blood to the brain, regardless the route of exposure, and accumulate in the brain over time. As the brain is responsible for basic physiological functions and controls all human activities, it is important to assess the hazardous influence of AgNPs released from widely used nanoproducts and possible side effects of AgNP-based therapies. A number of studies have suggested that the size, shape and surface coating, as well as rates of silver ion release and interactions with proteins are the key factors determining the neurotoxicity of AgNPs. AgNPs target endothelial cells forming the blood-brain barrier, neurons and glial cells and leads finally to oxidative stress-related cell death. In this chapter, we review in detail current data on the impact of AgNPs on the central nervous system and discuss the possible mechanisms of their neurotoxic effects.
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Affiliation(s)
- Lidia Strużyńska
- Laboratory of Pathoneurochemistry, Department of Neurochemistry, Mossakowski Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland.
| | - Joanna Skalska
- Laboratory of Pathoneurochemistry, Department of Neurochemistry, Mossakowski Medical Research Centre, Polish Academy of Sciences, Warsaw, Poland
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Yu S, Liu F, Wang C, Zhang J, Zhu A, Zou L, Han A, Li J, Chang X, Sun Y. Role of oxidative stress in liver toxicity induced by nickel oxide nanoparticles in rats. Mol Med Rep 2017; 17:3133-3139. [PMID: 29257258 DOI: 10.3892/mmr.2017.8226] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Accepted: 05/12/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to explore the role of oxidative stress in liver toxicity induced by nickel oxide nanoparticles (nano‑NiO) in rats. Male Wistar rats received saline (control), nano‑NiO [0.015, 0.06 or 0.24 mg/kg body weight (b.w.)] or micro‑NiO (0.24 mg/kg b.w.) by intratracheal instilling twice a week for 6 weeks. Liver tissues were then collected and examined for biomarkers of nitrative and oxidative stress, as well as mRNA expression of heme oxygenase (HO)‑1 and metallothionein (MT)‑1. The results demonstrated that the NiO exposure groups had increased liver wet weight and coefficient to body weight, as well as liver pathological changes, evidenced as cellular edema, hepatic sinus disappeara-nce and binucleated hepatocytes. The activities of total nitric oxide synthase and inducible nitric oxide synthase, and the nitric oxide content, were increased in the 0.24 mg/kg nano‑NiO group compared with the control group. The MT‑1 mRNA expression levels were downregulated, while HO‑1 mRNA was upregulated in the 0.24 mg/kg nano‑NiO exposure group compared with the control group. In addition, abnormal changes of hydroxyl radical, lipid peroxidation, catalase, glutathione peroxidase, total superoxide dismutase and total antioxidative capacity were observed in the liver tissues of the 0.24 mg/kg nano‑NiO exposure group, compared with the control group. The present results therefore indicated that nano‑NiO‑induced liver toxicity may be associated with nitrative and oxidative stress in rats.
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Affiliation(s)
- Shu Yu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Fangfang Liu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Chen Wang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jingyi Zhang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - An Zhu
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Lingyue Zou
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Aijie Han
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jin Li
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Xuhong Chang
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yingbiao Sun
- Department of Toxicology, School of Public Health, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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