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Wang Q, Liu T, Koci M, Wang Y, Fu Y, Ma M, Ma Q, Zhao L. Chlorogenic Acid Alleviated AFB1-Induced Hepatotoxicity by Regulating Mitochondrial Function, Activating Nrf2/HO-1, and Inhibiting Noncanonical NF-κB Signaling Pathway. Antioxidants (Basel) 2023; 12:2027. [PMID: 38136147 PMCID: PMC10740517 DOI: 10.3390/antiox12122027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 12/24/2023] Open
Abstract
Aflatoxin B1 (AFB1), a kind of mycotoxin, imposes acute or chronic toxicity on humans and causes great public health concerns. Chlorogenic acid (CGA), a natural phenolic substance, shows a powerful antioxidant and anti-inflammatory effect. This study was conducted to investigate the effect and mechanism of CGA on alleviating cytotoxicity induced by AFB1 in L-02 cells. The results showed that CGA (160 μM) significantly recovered cell viability and cell membrane integrity in AFB1-treated (8 μM) cells. Furthermore, it was found that CGA reduced AFB1-induced oxidative injury by neutralizing reactive oxygen species (ROS) and activating the nuclear factor erythroid 2-related factor 2 (Nrf2)/heme oxygenase-1 (HO-1) signaling pathway. In addition, CGA showed anti-inflammatory effects as it suppressed the expression of inflammation-related genes (IL-6, IL-8, and TNF-α) and AFB1-induced noncanonical nuclear factor kappa-B (NF-κB) activation. Moreover, CGA mitigated AFB1-induced apoptosis by maintaining the mitochondrial membrane potential (MMP) and inhibiting mRNA expressions of Caspase-3, Caspase-8, Bax, and Bax/Bcl-2. These findings revealed a possible mechanism: CGA prevents AFB1-induced cytotoxicity by maintaining mitochondrial membrane potential, activating Nrf2/HO-1, and inhibiting the noncanonical NF-κB signaling pathway, which may provide a new direction for the application of CGA.
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Affiliation(s)
- Qianqian Wang
- State Key Laboratory of Animal Nutrition and Feeding, Poultry Nutrition and Feed Technology Innovation Team, College of Animal Science and Technology, China Agricultural University, No. 2. West Road Yuanming Yuan, Beijing 100193, China; (Q.W.); (T.L.); (Y.W.); (Y.F.); (M.M.); (Q.M.)
| | - Tianxu Liu
- State Key Laboratory of Animal Nutrition and Feeding, Poultry Nutrition and Feed Technology Innovation Team, College of Animal Science and Technology, China Agricultural University, No. 2. West Road Yuanming Yuan, Beijing 100193, China; (Q.W.); (T.L.); (Y.W.); (Y.F.); (M.M.); (Q.M.)
| | - Matthew Koci
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA;
| | - Yanan Wang
- State Key Laboratory of Animal Nutrition and Feeding, Poultry Nutrition and Feed Technology Innovation Team, College of Animal Science and Technology, China Agricultural University, No. 2. West Road Yuanming Yuan, Beijing 100193, China; (Q.W.); (T.L.); (Y.W.); (Y.F.); (M.M.); (Q.M.)
| | - Yutong Fu
- State Key Laboratory of Animal Nutrition and Feeding, Poultry Nutrition and Feed Technology Innovation Team, College of Animal Science and Technology, China Agricultural University, No. 2. West Road Yuanming Yuan, Beijing 100193, China; (Q.W.); (T.L.); (Y.W.); (Y.F.); (M.M.); (Q.M.)
| | - Mingxin Ma
- State Key Laboratory of Animal Nutrition and Feeding, Poultry Nutrition and Feed Technology Innovation Team, College of Animal Science and Technology, China Agricultural University, No. 2. West Road Yuanming Yuan, Beijing 100193, China; (Q.W.); (T.L.); (Y.W.); (Y.F.); (M.M.); (Q.M.)
| | - Qiugang Ma
- State Key Laboratory of Animal Nutrition and Feeding, Poultry Nutrition and Feed Technology Innovation Team, College of Animal Science and Technology, China Agricultural University, No. 2. West Road Yuanming Yuan, Beijing 100193, China; (Q.W.); (T.L.); (Y.W.); (Y.F.); (M.M.); (Q.M.)
| | - Lihong Zhao
- State Key Laboratory of Animal Nutrition and Feeding, Poultry Nutrition and Feed Technology Innovation Team, College of Animal Science and Technology, China Agricultural University, No. 2. West Road Yuanming Yuan, Beijing 100193, China; (Q.W.); (T.L.); (Y.W.); (Y.F.); (M.M.); (Q.M.)
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Adla T, Koci M, Suchanek V, Salagovicova Z, Polovincak M, Miksik L, Rocek M. How clinical question influences radiation dose in paediatric cardiac CT scan? Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeaa356.252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
Introduction
Number of Cardiac CT examinations in paediatric population is rising. Clinical questions might vary from cardiac anatomy, coronary arteries, cardiac function assessment to chest examination including evaluation of large vessels, eventually combinations of these tasks. Dose reduction in children is especially important. CT scanning mode selection, reduction of kVp and limited extent of scanning in z-axis are the most important parameters for dose reduction. However, dose reduction optimization should not limit the readability of the CCT, and consequently the ability to reply the clinical question.
Purpose
This study analyses the influence of different clinical questions to radiation dose of paediatric cardiac CT.
Methods
In total 123 patients (42 females, 81 males) were examined using third generation dual-source CT scanner (SOMATOM Force, Siemens Healthineers, Forchheim, Germany), age mean 10.5 ± SD 5.9 years (min 50 days – max 18.9 years), height 138 ± 39 cm (54 – 200), weight 49 ± 25 kg (3.7 – 103). Three main categories of clinical questions (Q) were set: Q1) Extent of scanning in z-axis: heart only (from carina to diaphragm) or whole chest, Q2) Coronary arteries evaluation: yes/no, Q3) Cardiac function assessment (yes/no). Radiation dose is represented as a dose length product (DLP) in mGy*cm. Effective dose (ED) in mSv and calculated from DLP using converting factor 0.026 mSv/mGy*cm. Multiple regression was used to evaluate influence of clinical question to radiation dose.
Results
Total DLP was 202 ± 282 mGy*cm (6 – 1751), ED was 5.25 ± 7.33 mSv (0.16 – 45.53). Multiple regression of Total DLP versus Q1-Q3, height, weight and average heart rate showed statistically significant influence of cardiac function assessment (413 ± 263 vs 132 ± 253 mGy*cm, p 0.0001) and weight (p 0.0443). Multiple regression after adjusting to weight showed statistically significant influence of cardiac function assessment only (p <0.0001).
Conclusions
Only clinical question about cardiac function assessment caused statistically significant higher radiation dose acquired from cardiac CT in paediatric patients. There was no statistically significant influence of coronary artery evaluation and extent of scanning.
Abstract Figure.
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Affiliation(s)
- T Adla
- Motol University Hospital, Prague, Czechia
| | - M Koci
- Motol University Hospital, Prague, Czechia
| | - V Suchanek
- Motol University Hospital, Prague, Czechia
| | | | | | - L Miksik
- Motol University Hospital, Prague, Czechia
| | - M Rocek
- Motol University Hospital, Prague, Czechia
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Zhang L, Wei X, Zhang R, Koci M, Si D, Ahmad B, Guo H, Hou Y. C-Terminal Amination of a Cationic Anti-Inflammatory Peptide Improves Bioavailability and Inhibitory Activity Against LPS-Induced Inflammation. Front Immunol 2021; 11:618312. [PMID: 33613547 PMCID: PMC7892475 DOI: 10.3389/fimmu.2020.618312] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2020] [Accepted: 12/15/2020] [Indexed: 12/05/2022] Open
Abstract
Lipopolysaccharide (LPS) has been implicated as a major cause of inflammation and an uncontrolled LPS response increases the risk of localized inflammation and sepsis. While some native peptides are helpful in the treatment of LPS-induced inflammation, the use of these peptides is limited due to their potential cytotoxicity and poor anti-inflammatory activity. Hybridization is an effective approach for overcoming this problem. In this study, a novel hybrid anti-inflammatory peptide that combines the active center of Cathelicidin 2 (CATH2) with thymopentin (TP5) was designed [CTP, CATH2 (1–13)-TP5]. CTP was found to have higher anti-inflammatory effects than its parental peptides through directly LPS neutralization. However, CTP scarcely inhibited the attachment of LPS to cell membranes or suppressed an established LPS-induced inflammation due to poor cellular uptake. The C-terminal amine modification of CTP (CTP-NH2) was then designed based on the hypothesis that C-terminal amidation can enhance the cell uptake by increasing the hydrophobicity of the peptide. Compared with CTP, CTP-NH2 showed enhanced anti-inflammatory activity and lower cytotoxicity. CTP-NH2 not only has strong LPS neutralizing activity, but also can significantly inhibit the LPS attachment and the intracellular inflammatory response. The intracellular anti-inflammatory effect of CTP-NH2 was associated with blocking of LPS binding to the Toll-like receptor 4-myeloid differentiation factor 2 complex and inhibiting the nuclear factor-kappa B pathway. In addition, the anti-inflammatory effect of CTP-NH2 was confirmed using a murine LPS-induced sepsis model. Collectively, these findings suggest that CTP-NH2 could be developed into a novel anti-inflammatory drug. This successful modification provides a design strategy to improve the cellular uptake and anti-inflammatory activity of peptide agents.
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Affiliation(s)
- Lulu Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Xubiao Wei
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Rijun Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Matthew Koci
- Prestage Department of Poultry Science, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC, United States
| | - Dayong Si
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Baseer Ahmad
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Henan Guo
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Yanfei Hou
- School of Pharmaceutical Sciences, Tsinghua University, Beijing, China
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Troxell B, Mendoza M, Ali R, Koci M, Hassan H. Attenuated Salmonella enterica Serovar Typhimurium, Strain NC983, Is Immunogenic, and Protective against Virulent Typhimurium Challenges in Mice. Vaccines (Basel) 2020; 8:vaccines8040646. [PMID: 33153043 PMCID: PMC7711481 DOI: 10.3390/vaccines8040646] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 01/31/2023] Open
Abstract
Non-typhoidal Salmonella (NTS) serovars are significant health burden worldwide. Although much effort has been devoted to developing typhoid-based vaccines for humans, currently there is no NTS vaccine available. Presented here is the efficacy of a live attenuated serovar Typhimurium strain (NC983). Oral delivery of strain NC983 was capable of fully protecting C57BL/6 and BALB/c mice against challenge with virulent Typhimurium. Strain NC983 was found to elicit an anti-Typhimurium IgG response following administration of vaccine and boosting doses. Furthermore, in competition experiments with virulent S. Typhimurium (ATCC 14028), NC983 was highly defective in colonization of the murine liver and spleen. Collectively, these results indicate that strain NC983 is a potential live attenuated vaccine strain that warrants further development.
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Affiliation(s)
- Bryan Troxell
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA; (B.T.); (M.M.); (R.A.); (M.K.)
| | - Mary Mendoza
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA; (B.T.); (M.M.); (R.A.); (M.K.)
| | - Rizwana Ali
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA; (B.T.); (M.M.); (R.A.); (M.K.)
| | - Matthew Koci
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA; (B.T.); (M.M.); (R.A.); (M.K.)
| | - Hosni Hassan
- Prestage Department of Poultry Science, North Carolina State University, Raleigh, NC 27695, USA; (B.T.); (M.M.); (R.A.); (M.K.)
- Microbiology Graduate Program, North Carolina State University, Raleigh, NC 27695, USA
- Correspondence: ; Tel.: +919-515-7081; Fax: +919-515-2625
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Wei X, Zhang L, Zhang R, Koci M, Si D, Ahmad B, Cheng J, Wang J, Aihemaiti M, Zhang M. A Novel Cecropin-LL37 Hybrid Peptide Protects Mice Against EHEC Infection-Mediated Changes in Gut Microbiota, Intestinal Inflammation, and Impairment of Mucosal Barrier Functions. Front Immunol 2020; 11:1361. [PMID: 32695115 PMCID: PMC7338479 DOI: 10.3389/fimmu.2020.01361] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 05/28/2020] [Indexed: 12/14/2022] Open
Abstract
Intestinal inflammation can cause impaired epithelial barrier function and disrupt immune homeostasis, which increases the risks of developing many highly fatal diseases. Enterohemorrhagic Escherichia coli (EHEC) O157:H7 causes intestinal infections worldwide and is a major pathogen that induces intestinal inflammation. Various antibacterial peptides have been described as having the potential to suppress and treat pathogen-induced intestinal inflammation. Cecropin A (1–8)-LL37 (17–30) (C-L), a novel hybrid peptide designed in our laboratory that combines the active center of C with the core functional region of L, shows superior antibacterial properties and minimized cytotoxicity compared to its parental peptides. Herein, to examine whether C-L could inhibit pathogen-induced intestinal inflammation, we investigated the anti-inflammatory effects of C-L in EHEC O157:H7-infected mice. C-L treatment improved the microbiota composition and microbial community balance in mouse intestines. The hybrid peptide exhibited improved anti-inflammatory effects than did the antibiotic, enrofloxacin. Hybrid peptide treated infected mice demonstrated reduced clinical signs of inflammation, reduced weight loss, reduced expression of pro-inflammatory cytokines [tumor necrosis factor-alpha (TNF-α), interleukin-6 (IL-6), and interferon-gamma (IFN-γ)], reduced apoptosis, and reduced markers of jejunal epithelial barrier function. The peptide also affected the MyD88–nuclear factor κB signaling pathway, thereby modulating inflammatory responses upon EHEC stimulation. Collectively, these findings suggest that the novel hybrid peptide C-L could be developed into a new anti-inflammatory agent for use in animals or humans.
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Affiliation(s)
- Xubiao Wei
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lulu Zhang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Rijun Zhang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Matthew Koci
- Prestage Department of Poultry Science, College of Agriculture and Life Sciences, North Carolina State University, Raleigh, NC, United States
| | - Dayong Si
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Baseer Ahmad
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Junhao Cheng
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Junyong Wang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Maierhaba Aihemaiti
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Manyi Zhang
- Laboratory of Feed Biotechnology, State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
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6
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Koci M, Ballou A, Wei X, Zhang L, Liew ZQ, Ali R. Connecting the microbiome to host metabolites: understanding how the microbiome controls immune activity in birds. FASEB J 2020. [DOI: 10.1096/fasebj.2020.34.s1.00747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | | | - Lulu Zhang
- NC State University
- China Agricultural University
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7
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Allali I, Arnold JW, Roach J, Cadenas MB, Butz N, Hassan HM, Koci M, Ballou A, Mendoza M, Ali R, Azcarate-Peril MA. A comparison of sequencing platforms and bioinformatics pipelines for compositional analysis of the gut microbiome. BMC Microbiol 2017; 17:194. [PMID: 28903732 PMCID: PMC5598039 DOI: 10.1186/s12866-017-1101-8] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Accepted: 08/29/2017] [Indexed: 12/16/2022] Open
Abstract
Background Advancements in Next Generation Sequencing (NGS) technologies regarding throughput, read length and accuracy had a major impact on microbiome research by significantly improving 16S rRNA amplicon sequencing. As rapid improvements in sequencing platforms and new data analysis pipelines are introduced, it is essential to evaluate their capabilities in specific applications. The aim of this study was to assess whether the same project-specific biological conclusions regarding microbiome composition could be reached using different sequencing platforms and bioinformatics pipelines. Results Chicken cecum microbiome was analyzed by 16S rRNA amplicon sequencing using Illumina MiSeq, Ion Torrent PGM, and Roche 454 GS FLX Titanium platforms, with standard and modified protocols for library preparation. We labeled the bioinformatics pipelines included in our analysis QIIME1 and QIIME2 (de novo OTU picking [not to be confused with QIIME version 2 commonly referred to as QIIME2]), QIIME3 and QIIME4 (open reference OTU picking), UPARSE1 and UPARSE2 (each pair differs only in the use of chimera depletion methods), and DADA2 (for Illumina data only). GS FLX+ yielded the longest reads and highest quality scores, while MiSeq generated the largest number of reads after quality filtering. Declines in quality scores were observed starting at bases 150–199 for GS FLX+ and bases 90–99 for MiSeq. Scores were stable for PGM-generated data. Overall microbiome compositional profiles were comparable between platforms; however, average relative abundance of specific taxa varied depending on sequencing platform, library preparation method, and bioinformatics analysis. Specifically, QIIME with de novo OTU picking yielded the highest number of unique species and alpha diversity was reduced with UPARSE and DADA2 compared to QIIME. Conclusions The three platforms compared in this study were capable of discriminating samples by treatment, despite differences in diversity and abundance, leading to similar biological conclusions. Our results demonstrate that while there were differences in depth of coverage and phylogenetic diversity, all workflows revealed comparable treatment effects on microbial diversity. To increase reproducibility and reliability and to retain consistency between similar studies, it is important to consider the impact on data quality and relative abundance of taxa when selecting NGS platforms and analysis tools for microbiome studies. Electronic supplementary material The online version of this article (10.1186/s12866-017-1101-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Imane Allali
- Department of Medicine, Division of Gastroenterology and Hepatology, and Microbiome Core Facility, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Campus Box 7555, 332 Isaac Taylor Hall, Chapel Hill, NC, 27599-7545, USA.,Laboratory of Biochemistry & Immunology, Faculty of Sciences, Mohammed V University, Rabat, Morocco
| | - Jason W Arnold
- Department of Medicine, Division of Gastroenterology and Hepatology, and Microbiome Core Facility, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Campus Box 7555, 332 Isaac Taylor Hall, Chapel Hill, NC, 27599-7545, USA
| | - Jeffrey Roach
- Research Computing, University of North Carolina, Chapel Hill, NC, USA
| | - Maria Belen Cadenas
- Department of Medicine, Division of Gastroenterology and Hepatology, and Microbiome Core Facility, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Campus Box 7555, 332 Isaac Taylor Hall, Chapel Hill, NC, 27599-7545, USA
| | - Natasha Butz
- Department of Medicine, Division of Gastroenterology and Hepatology, and Microbiome Core Facility, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Campus Box 7555, 332 Isaac Taylor Hall, Chapel Hill, NC, 27599-7545, USA
| | - Hosni M Hassan
- Department of Poultry Science, North Carolina State University, Raleigh, NC, USA
| | - Matthew Koci
- Department of Poultry Science, North Carolina State University, Raleigh, NC, USA
| | - Anne Ballou
- Department of Poultry Science, North Carolina State University, Raleigh, NC, USA
| | - Mary Mendoza
- Department of Poultry Science, North Carolina State University, Raleigh, NC, USA
| | - Rizwana Ali
- Department of Poultry Science, North Carolina State University, Raleigh, NC, USA
| | - M Andrea Azcarate-Peril
- Department of Medicine, Division of Gastroenterology and Hepatology, and Microbiome Core Facility, Center for Gastrointestinal Biology and Disease, School of Medicine, University of North Carolina, Campus Box 7555, 332 Isaac Taylor Hall, Chapel Hill, NC, 27599-7545, USA.
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Ballou A, Ali R, Koci M. Probiotics alter avian serum profile to stimulate energy consumption and change of gene expression in immune cells. FASEB J 2017. [DOI: 10.1096/fasebj.31.1_supplement.940.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Oviedo-Rondón E, Leandro N, Ali R, Koci M, Moraes V, Brake J. Broiler breeder feeding programs and trace minerals on maternal antibody transfer and broiler humoral immune response. J APPL POULTRY RES 2013. [DOI: 10.3382/japr.2012-00708] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Leandro N, Ali R, Koci M, Moraes V, Malheiros R, Wineland M, Oviedo-Rondón E. Effects of broiler breeder genetic, diet type, and feeding program on maternal antibody transfer and development of lymphoid tissues in chicken progeny. J APPL POULTRY RES 2011. [DOI: 10.3382/japr.2010-00268] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Leandro N, Ali R, Koci M, Moraes V, Eusebio-Balcazar P, Jornigan J, Malheiros R, Wineland M, Brake J, Oviedo-Rondón E. Maternal antibody transfer to broiler progeny varies among strains and is affected by grain source and cage density. Poult Sci 2011; 90:2730-9. [DOI: 10.3382/ps.2011-01573] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Nighot PK, Moeser A, Ali R, Blikslager A, Koci M. Astrovirus Induces Diarrhea in Turkey Poults via Sodium Malabsorption. FASEB J 2009. [DOI: 10.1096/fasebj.23.1_supplement.977.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | | | - Rizwana Ali
- Dept. of Poultry SciencesCollege of Veterinary MedicineNorth Carolina State UniversityRaleighNC
| | | | - Matthew Koci
- Dept. of Poultry SciencesCollege of Veterinary MedicineNorth Carolina State UniversityRaleighNC
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Fan Y, Croom W, Daniel L, McBride B, Koci M, Havenstein G, Eisen E. Effect of Genotype on Whole-body and Intestinal Metabolic Response to Monensin in Mice. Asian Australas J Anim Sci 2006. [DOI: 10.5713/ajas.2006.554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
Apoptosis is essential in many physiological processes including wound healing and development of the immune response. Apoptosis also plays an important role in the pathogenesis of many infectious diseases including those caused by viruses. Influenza viruses induce apoptosis in cells that are permissive for viral replication and cells that do not support viral replication. The cellular pathways involved in influenza virus induced apoptosis are currently ill defined. Previous studies suggest that influenza virus infection increased the expression of the Fas antigen in HeLa cells, and that Fas antigen is partially involved in apoptosis. In these studies we examined the cellular pathways involved in avian influenza virus induced apoptosis in two cell lines that support productive viral replication: Madin-Darby canine kidney cells (MDCK) and mink lung epithelial (Mv1Lu) cells.
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Affiliation(s)
- S Schultz-Cherry
- Southeast Poultry Research Laboratory, USDA-ARS, Athens, GA 30605, USA
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15
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Behling-Kelly E, Schultz-Cherry S, Koci M, Kelley L, Larsen D, Brown C. Localization of astrovirus in experimentally infected turkeys as determined by in situ hybridization. Vet Pathol 2003; 39:595-8. [PMID: 12243474 DOI: 10.1354/vp.39-5-595] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Twenty-one 3-day-old turkey poults from British United Turkeys of America were orally inoculated with a recently characterized astrovirus, TAstV-2, isolated from turkeys with poult enteritis and mortality syndrome. At 1, 2, 3, 4, 5, 7, and 9 days postinfection (dpi), three inoculated birds were euthanatized, and tissues (intestines, spleen, bursa, and thymus) were collected immediately into 10% neutral buffered formalin. Inoculated birds were diarrheic by 3 dpi, and frothy feces persisted throughout the experimental period. Histologically, there was only slight evidence of enteric damage, which was characterized by mild epithelial necrosis, lamina propria infiltrates, minimal villus atrophy, and mild crypt hyperplasia. In situ hybridization, using a negative sense digoxigenin-labeled riboprobe to the capsid gene of TAstV-2, revealed viral RNA in intestinal epithelial cells at the basal margins of the villi, in distal small intestine, and in cecum at 2 dpi, with subsequent extension to epithelium of the large intestine and proximal small intestine (3-5 dpi). Minimal virus remained by 9 dpi.
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16
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Gombos B, Merva M, Sekula F, Koci M. Phenylmercury and its mobilization in the organism by a metal complex-forming substance: 2,3-dimercapto-1-propane sodium sulfonate. Med Lav 1996; 87:297-304. [PMID: 8956542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Workers handling dressing machines for seed treatment with the product Agronal, containing a phenylmercury chloride fungicide, were exposed to high concentrations of phenylmercury dust in the working environment. Urine analyses for mercury result in concentration of up to 0.1 mg Hg/l of urine. After administration of a complex-forming substance-Unitol (2,3-dimercapto-1-propane sodium sulfonate)-a higher urinary excretion of mercury occurred. The amount of mercury excreted confirmed its deposit in the organism. It was speculated that subjective complaints by workers handling dressing machines could be caused by high exposure to phenylmercury. This suggestion cannot, however, be fully accepted because the complaints were not necessarily specific for mercury only, but could also have been caused by factors of nontoxic origin, such as stress at the workplace, discontent with work and environmental hygiene conditions, conflicts and alcoholism. Most probably, it was a case of interpotentiation of the effects of toxic and non-toxic nature.
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Affiliation(s)
- B Gombos
- Institute of Geotechnics, Slovak Academy of Sciences, Kosice, Slovak Republic
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Sládek Z, Mlcoch M, Koci M. [Significance and possibilities of using a pressurized mechanical atomizer in otolaryngology]. Cesk Otolaryngol 1968; 17:243-6. [PMID: 5679861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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