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Sahoo DK, Wong D, Patani A, Paital B, Yadav VK, Patel A, Jergens AE. Exploring the role of antioxidants in sepsis-associated oxidative stress: a comprehensive review. Front Cell Infect Microbiol 2024; 14:1348713. [PMID: 38510969 PMCID: PMC10952105 DOI: 10.3389/fcimb.2024.1348713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Accepted: 02/15/2024] [Indexed: 03/22/2024] Open
Abstract
Sepsis is a potentially fatal condition characterized by organ dysfunction caused by an imbalanced immune response to infection. Although an increased inflammatory response significantly contributes to the pathogenesis of sepsis, several molecular mechanisms underlying the progression of sepsis are associated with increased cellular reactive oxygen species (ROS) generation and exhausted antioxidant pathways. This review article provides a comprehensive overview of the involvement of ROS in the pathophysiology of sepsis and the potential application of antioxidants with antimicrobial properties as an adjunct to primary therapies (fluid and antibiotic therapies) against sepsis. This article delves into the advantages and disadvantages associated with the utilization of antioxidants in the therapeutic approach to sepsis, which has been explored in a variety of animal models and clinical trials. While the application of antioxidants has been suggested as a potential therapy to suppress the immune response in cases where an intensified inflammatory reaction occurs, the use of multiple antioxidant agents can be beneficial as they can act additively or synergistically on different pathways, thereby enhancing the antioxidant defense. Furthermore, the utilization of immunoadjuvant therapy, specifically in septic patients displaying immunosuppressive tendencies, represents a promising advancement in sepsis therapy.
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Affiliation(s)
- Dipak Kumar Sahoo
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - David Wong
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
| | - Anil Patani
- Department of Biotechnology, Smt. S. S. Patel Nootan Science and Commerce College, Sankalchand Patel University, Gujarat, India
| | - Biswaranjan Paital
- Redox Regulation Laboratory, Department of Zoology, College of Basic Science and Humanities, Odisha University of Agriculture and Technology, Bhubaneswar, India
| | - Virendra Kumar Yadav
- Department of Life Sciences, Hemchandracharya North Gujarat University, Gujarat, India
| | - Ashish Patel
- Department of Life Sciences, Hemchandracharya North Gujarat University, Gujarat, India
| | - Albert E. Jergens
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Iowa State University, Ames, IA, United States
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Antia M, Ezejiofor AN, Orish CN, Cirovic A, Cirovic A, Orisakwe OE. Selenium and zinc supplementation mitigates metals-(loids) mixture- mediated cardiopulmonary toxicity via attenuation of antioxidant, anti-inflammatory and antiapoptotic mechanisms in female Sprague Dawley rats. Toxicol Res (Camb) 2024; 13:tfad119. [PMID: 38179003 PMCID: PMC10762678 DOI: 10.1093/toxres/tfad119] [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: 08/28/2023] [Revised: 11/01/2023] [Accepted: 11/30/2023] [Indexed: 01/06/2024] Open
Abstract
This study evaluated the cardiopulmonary protective effects of essential elements (Zn and Se) against heavy metals mixture (HMM) exposure. Twenty five female Sprague Dawley albino rats, divided in to five groups: controls were orally treated only with distilled water; next, group 2 was exposed to HMM with the following concentrations: 20 mg/kg of Pb body weight, 0.40 mg/kg of Hg, 0.56 mg/kg of Mn, and 35 mg/kg of Al. Groups 3, 4 and 5 were exposed to HMM and co-treated with zinc chloride (ZnCl2; 0.80 mg/kg), sodium selenite (Na2SeO3;1.50 mg/kg) and both zinc chloride and sodium selenite, respectively. The experiment lasted for 60 days. Afterwards animals were sacrificed, and we conduced biochemical and histopathological examination of the heart and lungs. HMM only exposed animals had an increased levels of malondialdehyde (MDA) and nitric oxide (NO), increased IL-6 and TNF-α, attenuated SOD, GPx, CAT and GSH and caspase 3 in the heart and lungs. HMM affected NF-kB and Nrf2 in the heart muscle with histomorphological alterations. Zn and Se attenuated adverse effects of HMM exposure. Essential element supplementation ameliorated heavy metal cardiopulmonary intoxication in rats.
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Affiliation(s)
- Mfoniso Antia
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, East West Road, Choba, Port Harcourt, Rivers State, Choba 5323, Nigeria
| | - Anthonet N Ezejiofor
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, East West Road, Choba, Port Harcourt, Rivers State, Choba 5323, Nigeria
| | - Chinna N Orish
- Department of Anatomy, Faculty of Basic Medical Sciences, College of Health Sciences, University of Port Harcourt, PMB, East West Road, Choba, Port Harcourt, Rivers State, Choba 5323, Nigeria
| | - Ana Cirovic
- Faculty of Medicine, The Institute of Anatomy, University of Belgrade, East West Road, Choba, Port Harcourt, Rivers State Belgrade, Serbia
| | - Aleksandar Cirovic
- Faculty of Medicine, The Institute of Anatomy, University of Belgrade, East West Road, Choba, Port Harcourt, Rivers State Belgrade, Serbia
| | - Orish E Orisakwe
- African Centre of Excellence for Public Health and Toxicological Research (ACE-PUTOR), University of Port Harcourt, PMB, East West Road, Choba, Port Harcourt, Rivers State, Choba 5323, Nigeria
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3
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Sherlock LG, McCarthy WC, Grayck MR, Solar M, Hernandez A, Zheng L, Delaney C, Tipple TE, Wright CJ, Nozik ES. Neonatal Selenium Deficiency Decreases Selenoproteins in the Lung and Impairs Pulmonary Alveolar Development. Antioxidants (Basel) 2022; 11:2417. [PMID: 36552625 PMCID: PMC9774937 DOI: 10.3390/antiox11122417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/16/2022] [Accepted: 11/22/2022] [Indexed: 12/13/2022] Open
Abstract
Decreased selenium (Se) levels during childhood and infancy are associated with worse respiratory health. Se is biologically active after incorporation into Se-containing antioxidant enzymes (AOE) and proteins. It is unknown how decreased maternal Se during pregnancy and lactation impacts neonatal pulmonary selenoproteins, growth, and lung development. Using a model of neonatal Se deficiency that limits Se intake to the dam during pregnancy and lactation, we evaluated which neonatal pulmonary selenoproteins are decreased in both the saccular (postnatal day 0, P0) and early alveolar (postnatal day 7, P7) stages of lung development. We found that Se deficient (SeD) pups weigh less and exhibit impaired alveolar development compared to Se sufficient (SeS) pups at P7. The activity levels of glutathione peroxidase (GPx) and thioredoxin reductase (Txnrd) were decreased at P0 and P7 in SeD lungs compared to SeS lungs. Protein content of GPx1, GPx3 and Txnrd1 were decreased in SeD lungs at P0 and P7, whereas Txnrd2 content was unaltered compared to SeS controls. The expression of NRF-2 dependent genes and several non-Se containing AOE were similar between SeS and SeD lungs. SeD lungs exhibited a decrease in selenoprotein N, an endoplasmic reticulum protein implicated in alveolar development, at both time points. We conclude that exposure to Se deficiency during pregnancy and lactation impairs weight gain and lung growth in offspring. Our data identify multiple selenoproteins in the neonatal lung that are vulnerable to decreased Se intake, which may impact oxidative stress and cell signaling under physiologic conditions as well as after oxidative stressors.
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Affiliation(s)
- Laura G. Sherlock
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - William C. McCarthy
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Maya R. Grayck
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Mack Solar
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Andres Hernandez
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Lijun Zheng
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Cassidy Delaney
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Trent E. Tipple
- Department of Pediatrics, University of Oklahoma College of Medicine, Oklahoma City, OK 73104, USA
| | - Clyde J. Wright
- Perinatal Research Center, Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - Eva S. Nozik
- Cardiovascular Pulmonary Research Laboratories, Departments of Pediatrics and Medicine, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
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Martin BR, Richardson J. An exploratory review of Potential Adjunct Therapies for the Treatment of Coronavirus Infections. J Chiropr Med 2021; 20:199-217. [PMID: 34924893 PMCID: PMC8664662 DOI: 10.1016/j.jcm.2021.12.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 12/04/2021] [Accepted: 12/06/2021] [Indexed: 10/31/2022] Open
Abstract
Objective The purpose of this exploratory review c, including vitamin D, zinc, vitamin A, elderberry (S nigra), garlic (A sativum), licorice (G glabra), stinging nettle (U dioica), N-acetylcysteine, quercetin and selenium as potential adjunct therapies for the treatment of coronavirus infections. Methods A search of PubMed was performed for articles published from 2005 to 2021. Key words searched were zinc, vitamin A, vitamin D, Sambucus nigra, Allium sativum, Glycyrrhiza glabra, Urtica dioica, N-Acetylcysteine, quercetin, selenium and coronavirus. Results There were 47 articles selected for this review. Findings included that vitamin D, zinc, vitamin A, S nigra, A sativum, G glabra, U dioica, N-acetylcysteine, quercetin and selenium have been shown to produce anti-inflammatory, immunostimulatory or antiviral effects that may enhance the actions of standard therapeutics for the treatment of CoV infections. We found only research articles related to the effects of vitamin D, zinc, G glabra, quercetin and selenium against COVID-19. Conclusion We identified non-pharmaceutical supplements (Vitamin D, zinc, vitamin A, S nigra, A sativum, G glabra and U dioica) which may have potential to provide support for those with coronavirus infections. However, rigorous clinical studies need to be performed before any clinical recommendations can be made at this time.
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Affiliation(s)
- Brett R Martin
- National University of Health Sciences Basic Science Department, Pinellas Park, Fl, USA
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Namted S, Poungpong K, Loongyai W, Rakangthong C, Bunchasak C. Improving growth performance and blood profile by feeding autolyzed yeast to improve pork carcass and meat quality. Anim Sci J 2021; 92:e13666. [PMID: 34873796 DOI: 10.1111/asj.13666] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 09/28/2021] [Accepted: 10/26/2021] [Indexed: 01/26/2023]
Abstract
The 63 commercial pigs were divided into three groups consisting of seven replicates of three piglets each. The experimental diets were (1) control diet, (2) diet with autolyzed yeast (AY) 0.5%, and (3) diet with AY 1.0%. Compared to the control group, using AY 0.5% in the diet reduced average daily feed intake (ADFI) and improved feed conversion ratio (FCR) (p < 0.05). The blood urea nitrogen (BUN) and neutrophil/lymphocyte ratio (N/L) in blood decreased with the addition of AY 0.5% (p < 0.05). The pH at 6-h postmortem of meat in the 0.5% AY diet group was higher than for the control group (p < 0.05). Backfat thickness (p = 0.09) and P2-backfat thickness (p = 0.07) tended to decrease, while the fat free index (FFI; p = 0.07) tended to increase with 0.5% AY supplementation. The protein percentage (p = 0.07) and the a* value (redness) (p = 0.08) in the meat tended to increase, and the springiness increased with 0.5% AY supplementation (p < 0.05). An appropriate level of AY supplementation can impact positively on the physiological functions in swine with a consequent seems to improve in qualitative traits of the meat quality.
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Affiliation(s)
- Siriporn Namted
- Department of Animal Science, Faculty of Agriculture, Kasetsart University, Bangkok, Thailand
| | - Kanokporn Poungpong
- Department of Animal Science, Faculty of Agriculture, Kasetsart University, Bangkok, Thailand
| | - Wiriya Loongyai
- Department of Animal Science, Faculty of Agriculture, Kasetsart University, Bangkok, Thailand
| | - Choawit Rakangthong
- Department of Animal Science, Faculty of Agriculture, Kasetsart University, Bangkok, Thailand
| | - Chaiyapoom Bunchasak
- Department of Animal Science, Faculty of Agriculture, Kasetsart University, Bangkok, Thailand
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Lv Q, Liang X, Nong K, Gong Z, Qin T, Qin X, Wang D, Zhu Y. Advances in Research on the Toxicological Effects of Selenium. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:715-726. [PMID: 33420800 DOI: 10.1007/s00128-020-03094-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 12/25/2020] [Indexed: 05/28/2023]
Abstract
Selenium is a trace element necessary for the growth of organisms. Moreover, selenium supplementation can improve the immunity and fertility of the body, as well as its ability to resist oxidation, tumors, heavy metals, and pathogenic microorganisms. However, owing to the duality of selenium, excessive selenium supplementation can cause certain toxic effects on the growth and development of the body and may even result in death in severe cases. At present, increasing attention is being paid to the development and utilization of selenium as a micronutrient, but its potential toxicity tends to be neglected. This study systematically reviews recent research on the toxicological effects of selenium, aiming to provide theoretical references for selenium toxicology-related research and theoretical support for the development of selenium-containing drugs, selenium-enriched dietary supplements, and selenium-enriched foods.
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Affiliation(s)
- Qizhuang Lv
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
- Guangxi Key Laboratory of Agricultural Resources Chemistry and Biotechnology, Yulin, 537000, Guangxi, China
| | - Xiaomei Liang
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Keyi Nong
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Zifeng Gong
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Ting Qin
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Xinyun Qin
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China
| | - Daobo Wang
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China.
| | - Yulin Zhu
- College of Biology & Pharmacy, Yulin Normal University, Yulin, 537000, Guangxi, China.
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7
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Khatiwada S, Subedi A. A Mechanistic Link Between Selenium and Coronavirus Disease 2019 (COVID-19). Curr Nutr Rep 2021; 10:125-136. [PMID: 33835432 PMCID: PMC8033553 DOI: 10.1007/s13668-021-00354-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/23/2021] [Indexed: 02/07/2023]
Abstract
Purpose of Review Coronavirus disease 2019 (COVID-19) is a rapidly emerging disease caused by a highly contagious virus called severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and this disease has affected millions of people across the world and led to hundreds of thousands of deaths worldwide. Nutrition is a key factor related to this disease, and nutritional status may determine the risk and outcomes of SARS-CoV-2 infection. Selenium is one of the major trace elements required for redox functions and has significant roles in viral infections. The purpose of this review was to examine the current evidence on the role of selenium in COVID-19. We reviewed studies on selenium and COVID-19, and other relevant studies to understand how selenium status can modify the risk of SARS-CoV-2 infection, and how selenium status might affect a person post-infection. Recent Findings We found that oxidative stress is a characteristic feature of COVID-19 disease, which is linked with the immunopathological disorder observed in individuals with severe COVID-19. Selenium plays a key role in strengthening immunity, reducing oxidative stress, preventing viral infections and supporting critical illness. Moreover, selenium deficiency is related to oxidative stress and hyperinflammation seen in critical illness, and selenium deficiency is found to be associated with the severity of COVID-19 disease. Summary Selenium supplementation at an appropriate dose may act as supportive therapy in COVID-19. Future studies in large cohorts of COVID-19 are warranted to verify the benefits of selenium supplementation for reducing risk and severity of COVID-19.
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Affiliation(s)
| | - Astha Subedi
- Medicine ICU, Tribhuvan University Teaching Hospital, Kathmandu, Nepal
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Liu JX, Chao XY, Chen P, Wang YD, Su TJ, Li M, Xu RY, Wu Q. Transcriptome Analysis of Selenium-Treated Porcine Alveolar Macrophages Against Lipopolysaccharide Infection. Front Genet 2021; 12:645401. [PMID: 33747052 PMCID: PMC7970123 DOI: 10.3389/fgene.2021.645401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Accepted: 02/02/2021] [Indexed: 11/25/2022] Open
Affiliation(s)
- Jia-Xuan Liu
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Xin-Yu Chao
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Peng Chen
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Yi-Ding Wang
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Tong-Jian Su
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Meng Li
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Ru-Yu Xu
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
| | - Qiong Wu
- Animal Science and Technology College, Beijing University of Agriculture, Beijing, China
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Zhai SL, Lu SS, Wei WK, Lv DH, Wen XH, Zhai Q, Chen QL, Sun YW, Xi Y. Reservoirs of Porcine Circoviruses: A Mini Review. Front Vet Sci 2019; 6:319. [PMID: 31616677 PMCID: PMC6763682 DOI: 10.3389/fvets.2019.00319] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Accepted: 09/05/2019] [Indexed: 01/01/2023] Open
Abstract
Porcine circovirus (PCV) is one of the smallest known DNA viruses in mammals. At present, PCVs are divided into three species, PCV1, PCV2, and PCV3. PCV1 and PCV2 were found in the 1970s and the 1990s, respectively, whereas PCV3 was discovered recently in 2016. PCV1 does not cause diseases in pigs. However, PCV3, similar to PCV2, is reported to be associated with several swine diseases, including porcine dermatitis and nephropathy syndrome (PDNS) and reproductive failure. PCVs are very common in domestic pigs as well as wild boars. However, PCVs have been occasionally isolated from non-porcine animals, including ruminants (such as cattle, goats, wild chamois, and roe deers), rodents (such as NMRI mice, BALB/c mice, Black C57 mice, ICR mice, Mus musculus, and Rattus rattus), canines (such as dogs, minks, foxes, and raccoon dogs), insects (such as flies, mosquitoes, and ticks), and shellfish. Moreover, PCVs are frequently reported in biological products, including human vaccines, animal vaccines, porcine-derived commercial pepsin products, and many cell lines. PCVs are also abundant in the environment, including water samples and air samples. Interestingly, PCV1 and/or PCV2 antibody or antigen has also been detected in sera, stool samples and respiratory swab samples of human, revealing zoonotic potential of PCVs. Thus, PCVs inhabit many types of reservoirs. In this review, we summarize the reservoirs of PCVs, and this information would be helpful in understanding the natural circulating status and possible cross-species transmission of PCVs.
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Affiliation(s)
- Shao-Lun Zhai
- Key Laboratory of Animal Disease Prevention of Guangdong Province, Animal Disease Diagnostic Center, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Shou-Sheng Lu
- Guangdong Center for Animal Disease Prevention and Control, Guangzhou, China
| | - Wen-Kang Wei
- Key Laboratory of Animal Disease Prevention of Guangdong Province, Animal Disease Diagnostic Center, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Dian-Hong Lv
- Key Laboratory of Animal Disease Prevention of Guangdong Province, Animal Disease Diagnostic Center, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Xiao-Hui Wen
- Key Laboratory of Animal Disease Prevention of Guangdong Province, Animal Disease Diagnostic Center, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Qi Zhai
- Key Laboratory of Animal Disease Prevention of Guangdong Province, Animal Disease Diagnostic Center, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Qin-Ling Chen
- Key Laboratory of Animal Disease Prevention of Guangdong Province, Animal Disease Diagnostic Center, Institute of Animal Health, Guangdong Academy of Agricultural Sciences, Scientific Observation and Experiment Station of Veterinary Drugs and Diagnostic Techniques of Guangdong Province, Ministry of Agriculture and Rural Affairs, Guangzhou, China
| | - Yan-Wei Sun
- Guangdong Center for Animal Disease Prevention and Control, Guangzhou, China
| | - Yun Xi
- Department of Clinical Laboratory, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
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Guillin OM, Vindry C, Ohlmann T, Chavatte L. Selenium, Selenoproteins and Viral Infection. Nutrients 2019; 11:nu11092101. [PMID: 31487871 PMCID: PMC6769590 DOI: 10.3390/nu11092101] [Citation(s) in RCA: 255] [Impact Index Per Article: 51.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/23/2019] [Accepted: 08/27/2019] [Indexed: 02/07/2023] Open
Abstract
Reactive oxygen species (ROS) are frequently produced during viral infections. Generation of these ROS can be both beneficial and detrimental for many cellular functions. When overwhelming the antioxidant defense system, the excess of ROS induces oxidative stress. Viral infections lead to diseases characterized by a broad spectrum of clinical symptoms, with oxidative stress being one of their hallmarks. In many cases, ROS can, in turn, enhance viral replication leading to an amplification loop. Another important parameter for viral replication and pathogenicity is the nutritional status of the host. Viral infection simultaneously increases the demand for micronutrients and causes their loss, which leads to a deficiency that can be compensated by micronutrient supplementation. Among the nutrients implicated in viral infection, selenium (Se) has an important role in antioxidant defense, redox signaling and redox homeostasis. Most of biological activities of selenium is performed through its incorporation as a rare amino acid selenocysteine in the essential family of selenoproteins. Selenium deficiency, which is the main regulator of selenoprotein expression, has been associated with the pathogenicity of several viruses. In addition, several selenoprotein members, including glutathione peroxidases (GPX), thioredoxin reductases (TXNRD) seemed important in different models of viral replication. Finally, the formal identification of viral selenoproteins in the genome of molluscum contagiosum and fowlpox viruses demonstrated the importance of selenoproteins in viral cycle.
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Affiliation(s)
- Olivia M Guillin
- CIRI, Centre International de Recherche en Infectiologie, CIRI, 69007 Lyon, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité U1111, 69007 Lyon, France
- Ecole Normale Supérieure de Lyon, 69007 Lyon, France
- Université Claude Bernard Lyon 1 (UCBL1), 69622 Lyon, France
- Unité Mixte de Recherche 5308 (UMR5308), Centre national de la recherche scientifique (CNRS), 69007 Lyon, France
| | - Caroline Vindry
- CIRI, Centre International de Recherche en Infectiologie, CIRI, 69007 Lyon, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité U1111, 69007 Lyon, France
- Ecole Normale Supérieure de Lyon, 69007 Lyon, France
- Université Claude Bernard Lyon 1 (UCBL1), 69622 Lyon, France
- Unité Mixte de Recherche 5308 (UMR5308), Centre national de la recherche scientifique (CNRS), 69007 Lyon, France
| | - Théophile Ohlmann
- CIRI, Centre International de Recherche en Infectiologie, CIRI, 69007 Lyon, France
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité U1111, 69007 Lyon, France
- Ecole Normale Supérieure de Lyon, 69007 Lyon, France
- Université Claude Bernard Lyon 1 (UCBL1), 69622 Lyon, France
- Unité Mixte de Recherche 5308 (UMR5308), Centre national de la recherche scientifique (CNRS), 69007 Lyon, France
| | - Laurent Chavatte
- CIRI, Centre International de Recherche en Infectiologie, CIRI, 69007 Lyon, France.
- Institut National de la Santé et de la Recherche Médicale (INSERM) Unité U1111, 69007 Lyon, France.
- Ecole Normale Supérieure de Lyon, 69007 Lyon, France.
- Université Claude Bernard Lyon 1 (UCBL1), 69622 Lyon, France.
- Unité Mixte de Recherche 5308 (UMR5308), Centre national de la recherche scientifique (CNRS), 69007 Lyon, France.
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11
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Azad MAK, Bin P, Liu G, Fang J, Li T, Yin Y. Effects of different methionine levels on offspring piglets during late gestation and lactation. Food Funct 2019; 9:5843-5854. [PMID: 30358792 DOI: 10.1039/c8fo01343h] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Maternal dietary supplementation during gestation and lactation improves the health of piglets. The purpose of this study was to determine the effect of different levels of methionine (Met) supplementation in the sows' diet during late gestation and lactation on piglets. Thirty sows were randomly divided into three groups and fed the following diets from day 90 of gestation to day 21 of lactation: (a) control group (a basal diet containing 0.36% Met), (b) 0.48% Met group (a basal diet with additional 0.12% Met), and (c) 0.60% Met group (a basal diet with additional 0.24% Met). On day 21 after farrowing, piglets of average body weight (n = 10 per group) were selected for sample collection. The results showed that the 0.48% Met and 0.60% Met diets significantly lowered the malondialdehyde content in the piglets' serum (P < 0.05). In addition, the glutathione peroxidase content was significantly increased in the 0.48% Met group (P < 0.05) and the total glutathione content was significantly reduced in the 0.60% Met group (P < 0.05) compared to the control group. Furthermore, Met supplementation of the sows' diet was associated with alterations in 37 plasma metabolites in the piglets. In the piglets' intestinal microbiota, the relative abundances of Phascolarctobacterium and Bacteroidetes in the 0.48% Met group were higher than those in the other two groups (P < 0.05). Our results suggest that a diet including 0.48% Met during late gestation and lactation can maintain the health of piglets by increasing the antioxidant capacity and changing the intestinal microbiota composition, but a higher level of Met supplementation may increase the potential risk to piglets.
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Affiliation(s)
- Md Abul Kalam Azad
- Hunan Province Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, Hunan 410125, China.
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Zeng X, Liu J, Du X, Zhang J, Pan K, Shan W, Xie Y, Song W, Zhao J. The protective effects of selenium supplementation on ambient PM 2.5-induced cardiovascular injury in rats. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:22153-22162. [PMID: 29804245 DOI: 10.1007/s11356-018-2292-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2017] [Accepted: 05/09/2018] [Indexed: 06/08/2023]
Abstract
Substantial epidemiological and experimental studies have shown that ambient fine particulate matter (PM2.5) exposure can lead to myocardial damage in human and animal through the mechanism of inflammation and oxidative stress. The purpose of the current study was to investigate whether selenium yeast (SeY) supplementation could prevent cardiovascular injury caused by PM2.5 in rats. Fifty-six Sprague-Dawley rats were randomly divided into seven groups: saline control group; solvent control group, low-, middle-, and high-dose Se pretreatment groups, PM2.5 exposure group, and high-dose Se control group. The rats were pretreated with different concentration of dietary SeY for 28 days, then were exposed to PM2.5 by intratracheal instillation every other day, a total of three times. The levels of inflammatory markers (tumor necrosis factor-alpha (TNF-α), interleukin-1beta (IL-1β), soluble intercellular adhesion molecule-1 (sICAM-1), and oxidative responses-related indicators total antioxidant capacity (T-AOC), total superoxide dismutase (T-SOD), glutathione peroxidase (GSH-Px), and malondialdehyde (MDA) were measured in blood and myocardium of the left ventricle. The results showed that although PM2.5 caused a decrease of T-AOC, T-AOD, and GSH-Px and increase of MDA and sICM-1, pretreatment with SeY induced a dose-dependent increase in these anti-oxidative indicators and a decrease in oxidative indicators. In addition, the levels of TNF-α and IL-1β in Se pretreatment groups were significantly lower than that in PM2.5 exposure group. The results indicated that Se supplementation could effectively prevent cardiovascular inflammation and oxidative stress induced by PM2.5. The results also indicated that the nutritional supplementation might be an effective way to protecting people's health from air pollution.
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Affiliation(s)
- Xuejiao Zeng
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Fudan University, 138 Yixueyuan Road, Box 249, Shanghai, 200032, China
| | - Jie Liu
- Department of Environmental and Occupational Health, Minhang District Center for Disease Control and Prevention, Shanghai, 201101, China
| | - Xihao Du
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Fudan University, 138 Yixueyuan Road, Box 249, Shanghai, 200032, China
| | - Jia Zhang
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Fudan University, 138 Yixueyuan Road, Box 249, Shanghai, 200032, China
| | - Kun Pan
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Fudan University, 138 Yixueyuan Road, Box 249, Shanghai, 200032, China
| | - Wei Shan
- Department of Epidemiology, School of Public Health, Ministry of Education, Fudan University, Shanghai, 200032, China
| | - Yuquan Xie
- Department of Cardiology, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China
| | - Weimin Song
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Fudan University, 138 Yixueyuan Road, Box 249, Shanghai, 200032, China
| | - Jinzhuo Zhao
- Department of Environmental Health, School of Public Health and the Key Laboratory of Public Health Safety, Fudan University, 138 Yixueyuan Road, Box 249, Shanghai, 200032, China.
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13
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Ouyang T, Liu X, Ouyang H, Ren L. Mouse models of porcine circovirus 2 infection. Animal Model Exp Med 2018; 1:23-28. [PMID: 30891543 PMCID: PMC6357427 DOI: 10.1002/ame2.12009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/16/2018] [Indexed: 12/23/2022] Open
Abstract
PCV2 is considered the main pathogen of porcine circovirus diseases and porcine circovirus-associated diseases (PCVD/PCVAD). However, the exact mechanism underlying PCVD/PCVAD is currently unknown. Mouse models of PCV2 are valuable experimental tools that can shed light on the pathogenesis of infection and will enable the evaluation of antiviral agents and vaccine candidates. In this review, we discuss the current state of knowledge of mouse models used in PCV2 research that has been performed to date, highlighting their strengths and limitations, as well as prospects for future PCV2 studies.
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Affiliation(s)
- Ting Ouyang
- Science and Technology Innovation Center for Animal Genome Editing of Jilin ProvinceCollege of Animal SciencesJilin UniversityChangchunJilinChina
| | - Xiao‐hui Liu
- Science and Technology Innovation Center for Animal Genome Editing of Jilin ProvinceCollege of Animal SciencesJilin UniversityChangchunJilinChina
| | - Hong‐sheng Ouyang
- Science and Technology Innovation Center for Animal Genome Editing of Jilin ProvinceCollege of Animal SciencesJilin UniversityChangchunJilinChina
| | - Lin‐zhu Ren
- Science and Technology Innovation Center for Animal Genome Editing of Jilin ProvinceCollege of Animal SciencesJilin UniversityChangchunJilinChina
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14
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Qian G, Liu D, Hu J, Gan F, Hou L, Zhai N, Chen X, Huang K. SeMet attenuates OTA-induced PCV2 replication promotion by inhibiting autophagy by activating the AKT/mTOR signaling pathway. Vet Res 2018; 49:15. [PMID: 29439710 PMCID: PMC5812231 DOI: 10.1186/s13567-018-0508-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2017] [Accepted: 11/20/2017] [Indexed: 12/19/2022] Open
Abstract
Porcine circovirus type 2 (PCV2) is recognized as the causative agent of porcine circovirus-associated diseases. PCV2 replication could be promoted by low doses of ochratoxin A (OTA) as in our previous study and selenium has been shown to attenuate PCV2 replication. However, the underlying mechanism remains unclear. The aim of the study was to investigate the effects of selenomethionine (SeMet), the major component of organic selenium, on OTA-induced PCV2 replication promotion and its potential mechanism. The present study demonstrates that OTA could promote PCV2 replication as measured by cap protein expression, viral titer, viral DNA copies and the number of infected cells. In addition, OTA could activate autophagy as indicated by up-regulated light chain 3 (LC3)-II and autophagy-related protein 5 expressions and autophagosome formation. Further, OTA could down-regulate p-AKT and p-mTOR expressions and OTA-induced autophagy was inhibited when insulin was applied. SeMet at 2, 4 and 6 μM had significant inhibiting effects against OTA-induced PCV2 replication promotion. Furthermore, SeMet could attenuate OTA-induced autophagy and up-regulate OTA-induced p-AKT and p-mTOR expression inhibition. Rapamycin, an inhibitor of AKT/mTOR, could reverse the effects of SeMet on OTA-induced autophagy and the PCV2 replication promotion. In conclusion, SeMet could block OTA-induced PCV2 replication promotion by inhibiting autophagy by activating the AKT/mTOR pathway. Therefore, SeMet supplementation could be an effective prophylactic strategy against PCV2 infections and autophagy may be a potential marker to develop novel anti-PCV2 drugs.
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Affiliation(s)
- Gang Qian
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Dandan Liu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Junfa Hu
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Fang Gan
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Lili Hou
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Nianhui Zhai
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.,Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China
| | - Xingxiang Chen
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China. .,Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.
| | - Kehe Huang
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China. .,Institute of Nutritional and Metabolic Disorders in Domestic Animals and Fowls, Nanjing Agricultural University, Nanjing, 210095, Jiangsu Province, China.
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Fang J, Martínez Y, Deng C, Zhu D, Peng H, Jiang H, Li A. Effects of dietary enzymolysis products of wheat gluten on the growth performance, serum biochemical, immune, and antioxidant status of broilers. FOOD AGR IMMUNOL 2017. [DOI: 10.1080/09540105.2017.1332009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Affiliation(s)
- Jun Fang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, People’s Republic of China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, People’s Republic of China
| | - Yordan Martínez
- Study Center of Animal Production, Faculty of Veterinary Medicine, University of Granma, Bayamo, Granma, Cuba
| | - Changjian Deng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, People’s Republic of China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, People’s Republic of China
| | - Dan Zhu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, People’s Republic of China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, People’s Republic of China
| | - Hanhui Peng
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, People’s Republic of China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, People’s Republic of China
| | - Hongmei Jiang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, People’s Republic of China
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, People’s Republic of China
| | - Aike Li
- Cereals & Oils Nutrition Research Group, Academy of Science & Technology of State Administration of Grain, Beijing, People’s Republic of China
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The Impacts of Chrysanthemum indicum Extract on Oxidative Stress and Inflammatory Responses in Adjuvant-Induced Arthritic Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2017; 2017:3285394. [PMID: 28491105 PMCID: PMC5402234 DOI: 10.1155/2017/3285394] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 03/24/2017] [Accepted: 03/30/2017] [Indexed: 02/07/2023]
Abstract
Chrysanthemum indicum has been used as a therapeutic agent against inflammation, hypertension, and respiratory conditions for many years. This research's aim has been to examine the antioxidant impacts that Chrysanthemum indicum extract (CIE) has on the oxidative stress and inflammatory responses in adjuvant-induced arthritic (AA) rats. 40 rats were categorised into 4 groups according to a completely randomized approach: Group I involved normal control rats (CTRL) that received a basal diet; Group II involved arthritic control rats (CTRL-AA) that received the same diet; Group III involved rats that received a basal diet and 30 mg/kg CIE; and Group IV involved arthritic rats with the same diet as Group III rats (CIE-AA). After injection with complete Freund's adjuvant, body weight, arthritis score, and the serum levels of TNF-α, IL-1β, IL-6, myeloperoxidase (MPO), malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione peroxidase (GSH-PX) were assessed. The results demonstrated that CIE delayed the onset time of arthritis and decreased the clinical arthritis severity score (P < 0.05). Observations of CIE-AA and CTRL-AA rats demonstrated that CIE alleviates oxidative stress and inflammatory responses in CIE-AA group. In conclusion, CIE alleviated oxidative stress and inflammatory responses, thereby highlighting its potential use as a candidate for clinical treatments of rheumatoid arthritis.
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YCl 3 Promotes Neuronal Cell Death by Inducing Apoptotic Pathways in Rats. BIOMED RESEARCH INTERNATIONAL 2017; 2017:2183658. [PMID: 28326317 PMCID: PMC5343218 DOI: 10.1155/2017/2183658] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 02/05/2017] [Indexed: 12/11/2022]
Abstract
The pollutants rare earth elements (REEs) have posed great threats to human health. To investigate the cytotoxicity of yttrium (Y), a model that rats have free access to water containing YCl3 for 6 months is utilized. The results showed that YCl3 treatment promoted neuronal cell apoptosis by upregulating the proapoptotic factors Bax, caspase-3, Cyto c, and DAPK and by downregulating the antiapoptotic factors Bcl-2 and XIAP at both mRNA and protein levels. Conclusively, YCl3 exhibited cytotoxicity and promoted neuronal cell death by the induction of apoptotic pathways.
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Dietary Saccharomyces cerevisiae Cell Wall Extract Supplementation Alleviates Oxidative Stress and Modulates Serum Amino Acids Profiles in Weaned Piglets. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:3967439. [PMID: 28386308 PMCID: PMC5366236 DOI: 10.1155/2017/3967439] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 03/05/2017] [Indexed: 01/10/2023]
Abstract
This research aims to evaluate the effects of dietary supplementation with Saccharomyces cerevisiae cell wall extract (SCCWE) on growth performance, oxidative stress, intestinal morphology, and serum amino acid concentration in weaned piglets. Utilizing a completely randomized design, 40 healthy piglets weaned at 21 d were grouped into 4 experimental treatments with 10 pigs per treatment group. Treatments consisted of a basal diet (T0), a basal diet with a 0.05% SCCWE (T1), a basal diet with a 0.10% SCCWE (T2), and a basal diet with a 0.15% SCCWE (T3). SCCWE supplementation increased the average daily gain and final body weight compared with T0 (P < 0.05). SCCWE in T2 and T3 improved the average daily feed intake and decreased the feed/gain ratio compared with T1 and T2 (P < 0.05). SCCWE decreased serum malondialdehyde (MDA) and increased activities of catalase (CAT), glutathione peroxidase (GPx), and superoxide dismutase (SOD) significantly compared to T0 (P < 0.05). SCCWE increased the concentration of Ile compared to T0 (P < 0.05). Moreover, the concentrations of Leu, Phe, and Arg were higher in T2 and T3 (P < 0.05). These findings indicate beneficial effects of SCCWE supplementation on growth performance, the concentration of some essential amino acids, and alleviation of oxidative stress in weaned piglets.
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Lin Z, Li Y, Guo M, Xiao M, Wang C, Zhao M, Xu T, Xia Y, Zhu B. Inhibition of H1N1 influenza virus by selenium nanoparticles loaded with zanamivir through p38 and JNK signaling pathways. RSC Adv 2017. [DOI: 10.1039/c7ra06477b] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Zanamivir is an effective drug for influenza virus infection, but strong molecular polarity and aqueous solubility limit its clinical application.
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Affiliation(s)
- Zhengfang Lin
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Yinghua Li
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Min Guo
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Misi Xiao
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Changbing Wang
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Mingqi Zhao
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Tiantian Xu
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Yu Xia
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
| | - Bing Zhu
- Center Laboratory
- Guangzhou Women and Children's Medical Centre
- Guangzhou Medical University
- Guangzhou
- P. R. China
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Ren L, Chen X, Ouyang H. Interactions of porcine circovirus 2 with its hosts. Virus Genes 2016; 52:437-44. [DOI: 10.1007/s11262-016-1326-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 03/19/2016] [Indexed: 12/11/2022]
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Patterson R, Eley T, Browne C, Martineau HM, Werling D. Oral application of freeze-dried yeast particles expressing the PCV2b Cap protein on their surface induce protection to subsequent PCV2b challenge in vivo. Vaccine 2015; 33:6199-205. [PMID: 26476879 PMCID: PMC4654422 DOI: 10.1016/j.vaccine.2015.10.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Revised: 09/29/2015] [Accepted: 10/01/2015] [Indexed: 11/30/2022]
Abstract
PCV2 is the underlying cause for an economically devastating disease of pigs. Vaccine construct was PCV2b Cap protein expressed on the surface of yeast. Oral vaccination of freeze-dried yeast-Cap did not induce negative side effects. Application protected pigs from subsequent PCV2b challenge. Vaccination reduced pro-inflammatory but increased antiviral cytokine expression.
Porcine circovirus type 2 (PCV2) is now endemic in every major pig producing country, causing PCV-associated disease (PCVAD), linked with large scale economic losses. Current vaccination strategies are based on the capsid protein of the virus and are reasonably successful in preventing PCVAD but fail to induce sterile immunity. Additionally, vaccinating whole herds is expensive and time consuming. In the present study a “proof of concept” vaccine trial was employed to test the effectiveness of powdered freeze-dried recombinant Saccharomyces cerevisiae yeast stably expressing the capsid protein of PCV2b on its surface as an orally applied vaccine. PCV2-free pigs were given 3 doses of vaccine or left un-vaccinated before challenge with a defined PCV2b strain. Rectal temperatures were measured and serum and faeces samples were collected weekly. At the end of the study, pigs were euthanized, tissue samples taken and tested for PCV2b load by qPCR and immunohistochemistry. The peak of viraemia in sera and faeces of unvaccinated pigs was higher than that of vaccinated pigs. Additionally more sIgA was found in faeces of vaccinated pigs than unvaccinated. Vaccination was associated with lower serum concentrations of TNFα and IL-1β but higher concentrations of IFNα and IFNγ in comparison to the unvaccinated animals. At the end of the trial, a higher viral load was found in several lymphatic tissues and the ileum of unvaccinated pigs in comparison to vaccinated pigs. The difference between groups was especially apparent in the ileum. The results presented here demonstrate a possible use for recombinant S. cerevisiae expressing viral proteins as an oral vaccine against PCV2. A powdered freeze-dried recombinant S. cerevisiae used as an oral vaccine could be mixed with feed and may offer a cheap and less labour intensive alternative to inoculation with the additional advantage that no cooling chain would be required for vaccine transport and storage.
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Affiliation(s)
- Robert Patterson
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield, UK
| | - Thomas Eley
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield, UK
| | - Christopher Browne
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield, UK
| | - Henny M Martineau
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield, UK
| | - Dirk Werling
- Department of Pathology and Pathogen Biology, Royal Veterinary College, Hawkshead Lane, Hatfield, UK.
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