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Yazdani A, Samms-Vaughan M, Saroukhani S, Bressler J, Hessabi M, Tahanan A, Grove ML, Gangnus T, Putluri V, Mostafa Kamal AH, Putluri N, Loveland KA, Rahbar MH. Metabolomic profiles in Jamaican children with and without autism spectrum disorder. ArXiv 2024:arXiv:2403.07147v1. [PMID: 38560734 PMCID: PMC10980079] [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] [Figures] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Background Autism spectrum disorder (ASD) is a complex neurodevelopmental condition with a wide range of behavioral and cognitive impairments. While genetic and environmental factors are known to contribute to its etiology, the underlying metabolic perturbations associated with ASD which can potentially connect genetic and environmental factors, remain poorly understood. Therefore, we conducted a metabolomic case-control study and performed a comprehensive analysis to identify significant alterations in metabolite profiles between children with ASD and typically developing (TD) controls. Objective To elucidate potential metabolomic signatures associated with ASD in children and identify specific metabolites that may serve as biomarkers for the disorder. Methods We conducted metabolomic profiling on plasma samples from participants in the second phase of Epidemiological Research on Autism in Jamaica (ERAJ-2), which was a 1:1 age (±6 months)-and sex-matched cohort of 200 children with ASD and 200 TD controls (2-8 years old). Using high-throughput liquid chromatography-mass spectrometry techniques, we performed a targeted metabolite analysis, encompassing amino acids, lipids, carbohydrates, and other key metabolic compounds. After quality control and imputation of missing values, we performed univariable and multivariable analysis using normalized metabolites while adjusting for covariates, age, sex, socioeconomic status, and child's parish of birth. Results Our findings revealed unique metabolic patterns in children with ASD for four metabolites compared to TD controls. Notably, three of these metabolites were fatty acids, including myristoleic acid, eicosatetraenoic acid, and octadecenoic acid. Additionally, the amino acid sarcosine exhibited a significant association with ASD. Conclusions These findings highlight the role of metabolites in the etiology of ASD and suggest opportunities for the development of targeted interventions.
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Affiliation(s)
- Akram Yazdani
- Division of Clinical and Translational Sciences, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Maureen Samms-Vaughan
- Department of Child & Adolescent Health, The University of the West Indies (UWI), Mona Campus, Kingston 7, Jamaica
| | - Sepideh Saroukhani
- Division of Clinical and Translational Sciences, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Jan Bressler
- Human Genetics Center, Department of Epidemiology, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Manouchehr Hessabi
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Amirali Tahanan
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Megan L Grove
- Human Genetics Center, Department of Epidemiology, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Tanja Gangnus
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States
| | - Vasanta Putluri
- Advanced Technology Core, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, United States
| | - Abu Hena Mostafa Kamal
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States
- Advanced Technology Core, Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, Texas, United States
| | - Nagireddy Putluri
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States
| | - Katherine A Loveland
- Louis A Faillace, MD, Department of Psychiatry and Behavioral Sciences, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Mohammad H Rahbar
- Division of Clinical and Translational Sciences, Department of Internal Medicine, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
- Biostatistics/Epidemiology/Research Design (BERD) Component, Center for Clinical and Translational Sciences (CCTS), The University of Texas Health Science Center at Houston, Houston, Texas, USA
- Department of Epidemiology, School of Public Health, The University of Texas Health Science Center at Houston, Houston, Texas, USA
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Jibon FA, Jamil Chowdhury AR, Miraz MH, Jin HH, Khandaker MU, Sultana S, Nur S, Siddiqui FH, Kamal AHM, Salman M, Youssef AAF. Sequential graph convolutional network and DeepRNN based hybrid framework for epileptic seizure detection from EEG signal. Digit Health 2024; 10:20552076241249874. [PMID: 38726217 PMCID: PMC11080778 DOI: 10.1177/20552076241249874] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2024] [Indexed: 05/12/2024] Open
Abstract
Automated epileptic seizure detection from ectroencephalogram (EEG) signals has attracted significant attention in the recent health informatics field. The serious brain condition known as epilepsy, which is characterized by recurrent seizures, is typically described as a sudden change in behavior caused by a momentary shift in the excessive electrical discharges in a group of brain cells, and EEG signal is primarily used in most cases to identify seizure to revitalize the close loop brain. The development of various deep learning (DL) algorithms for epileptic seizure diagnosis has been driven by the EEG's non-invasiveness and capacity to provide repetitive patterns of seizure-related electrophysiological information. Existing DL models, especially in clinical contexts where irregular and unordered structures of physiological recordings make it difficult to think of them as a matrix; this has been a key disadvantage to producing a consistent and appropriate diagnosis outcome due to EEG's low amplitude and nonstationary nature. Graph neural networks have drawn significant improvement by exploiting implicit information that is present in a brain anatomical system, whereas inter-acting nodes are connected by edges whose weights can be determined by either temporal associations or anatomical connections. Considering all these aspects, a novel hybrid framework is proposed for epileptic seizure detection by combined with a sequential graph convolutional network (SGCN) and deep recurrent neural network (DeepRNN). Here, DepRNN is developed by fusing a gated recurrent unit (GRU) with a traditional RNN; its key benefit is that it solves the vanishing gradient problem and achieve this hybrid framework greater sophistication. The line length feature, auto-covariance, auto-correlation, and periodogram are applied as a feature from the raw EEG signal and then grouped the resulting matrix into time-frequency domain as inputs for the SGCN to use for seizure classification. This model extracts both spatial and temporal information, resulting in improved accuracy, precision, and recall for seizure detection. Extensive experiments conducted on the CHB-MIT and TUH datasets showed that the SGCN-DeepRNN model outperforms other deep learning models for seizure detection, achieving an accuracy of 99.007%, with high sensitivity and specificity.
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Affiliation(s)
- Ferdaus Anam Jibon
- Department of Computer Science & Engineering, University of Information Technology & Sciences (UITS), Dhaka, Bangladesh
| | - A. R. Jamil Chowdhury
- Department of Computer Science & Engineering, University of Information Technology & Sciences (UITS), Dhaka, Bangladesh
| | - Mahadi Hasan Miraz
- Department of Management, Marketing and Digital Business, Faculty of Business, Curtin University Malaysia, Miri, Malaysia
| | - Hwang Ha Jin
- Department of Business Analytics, Sunway University, Bandar Sunway, Selangor, Malaysia
| | - Mayeen Uddin Khandaker
- Applied Physics and Radiation Technologies Group, CCDCU, School of Engineering and Technology, Sunway University, Bandar Sunway, Selangor, Malaysia
- Faculty of Graduate Studies, Daffodil International University, Daffodil Smart City, Birulia, Savar, Dhaka, Bangladesh
| | - Sajia Sultana
- Department of Computer Science & Engineering, University of Information Technology & Sciences (UITS), Dhaka, Bangladesh
| | - Sifat Nur
- Department of Computer Science & Engineering, University of Information Technology & Sciences (UITS), Dhaka, Bangladesh
| | - Fazlul Hasan Siddiqui
- Department of Computer Science & Engineering, Dhaka
University of Engineering & Technology (DUET), Gazipur, Dhaka, Bangladesh
| | - AHM Kamal
- Department of Computer Science & Engineering, Jatiya Kabi Kazi Nazrul Islam University (JKKNIU), Trishal, Mymensingh, Bangladesh
| | - Mohammad Salman
- College of Engineering and Technology, American University of the Middle East, Kuwait
| | - Ahmed A. F. Youssef
- College of Engineering and Technology, American University of the Middle East, Kuwait
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Arunachalam AR, Samuel SS, Mani A, Maynard JP, Stayer KM, Dybbro E, Narayanan S, Biswas A, Pathan S, Soni K, Kamal AHM, Ambati CSR, Putluri N, Desai MS, Thevananther S. P2Y2 purinergic receptor gene deletion protects mice from bacterial endotoxin and sepsis-associated liver injury and mortality. Am J Physiol Gastrointest Liver Physiol 2023; 325:G471-G491. [PMID: 37697947 PMCID: PMC10812707 DOI: 10.1152/ajpgi.00090.2023] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 08/28/2023] [Accepted: 09/11/2023] [Indexed: 09/13/2023]
Abstract
The liver plays a significant role in regulating a wide range of metabolic, homeostatic, and host-defense functions. However, the impact of liver injury on the host's ability to control bacteremia and morbidity in sepsis is not well understood. Leukocyte recruitment and activation lead to cytokine and chemokine release, which, in turn, trigger hepatocellular injury and elevate nucleotide levels in the extracellular milieu. P2Y2 purinergic receptors, G protein-coupled and activated by extracellular ATP/UTP, are expressed at the cell surface of hepatocytes and nonparenchymal cells. We sought to determine whether P2Y2 purinergic receptor function is necessary for the maladaptive host response to bacterial infection and endotoxin-mediated inflammatory liver injury and mortality in mice. We report that P2Y2 purinergic receptor knockout mice (P2Y2-/-) had attenuated inflammation and liver injury, with improved survival in response to LPS/galactosamine (LPS/GalN; inflammatory liver injury) and cecal ligation and puncture (CLP; polymicrobial sepsis). P2Y2-/- livers had attenuated c-Jun NH2-terminal kinase activation, matrix metallopeptidase-9 expression, and hepatocyte apoptosis in response to LPS/GalN and attenuated inducible nitric oxide synthase and nucleotide-binding oligomerization domain, leucine-rich repeat and pyrin domain containing 3 protein expression in response to CLP. Implicating liver injury in the disruption of amino acid homeostasis, CLP led to lower serum arginine and higher bacterial load and morbidity in the WT mice, whereas serum arginine levels were comparable to sham-operated controls in P2Y2-/- mice, which had attenuated bacteremia and improved survival. Collectively, our studies highlight the pathophysiological relevance of P2Y2 purinergic receptor function in inflammatory liver injury and dysregulation of systemic amino acid homeostasis with implications for sepsis-associated immune dysfunction and morbidity in mice.NEW & NOTEWORTHY Our studies provide experimental evidence for P2Y2 purinergic receptor-mediated potentiation of inflammatory liver injury, morbidity, and mortality, in two well-established animal models of inflammatory liver injury. Our findings highlight the potential to target P2Y2 purinergic signaling to attenuate the induction of "cytokine storm" and prevent its deleterious consequences on liver function, systemic amino acid homeostasis, host response to bacterial infection, and sepsis-associated morbidity and mortality.
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Affiliation(s)
- Athis R Arunachalam
- Neonatology, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Sanju S Samuel
- Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Arunmani Mani
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Janielle P Maynard
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Kelsey M Stayer
- Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Eric Dybbro
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Subapradha Narayanan
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Aalekhya Biswas
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Saliha Pathan
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Krishnakant Soni
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Abu Hena Mostafa Kamal
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States
| | | | - Nagireddy Putluri
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, United States
| | - Moreshwar S Desai
- Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
| | - Sundararajah Thevananther
- Section of Gastroenterology, Hepatology and Nutrition, Department of Pediatrics, Baylor College of Medicine, Houston, Texas, United States
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Khan MN, Kamal AHM, Yin X. Editorial: Advancements in plant omics for tackling biotic and abiotic stresses. Front Plant Sci 2023; 14:1208218. [PMID: 37313256 PMCID: PMC10258335 DOI: 10.3389/fpls.2023.1208218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 05/05/2023] [Indexed: 06/15/2023]
Affiliation(s)
- Mudassar Nawaz Khan
- Department of Biotechnology & Genetic Engineering, Hazara University, Mansehra, Pakistan
| | | | - Xiaojian Yin
- State Key Laboratory of Natural Medicines, Institute of Pharmaceutical Science, China Pharmaceutical University, Nanjing, China
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Kamal AHM, Chakrabarty JK, Chowdhury SM. Lipopolysaccharide and statin-mediated immune-responsive protein networks revealed in macrophages through affinity purification spacer-arm controlled cross-linking (AP-SPACC) proteomics. Mol Omics 2023; 19:48-59. [PMID: 36377691 DOI: 10.1039/d2mo00224h] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Toll-like receptor 4 (TLR4), a pattern recognition receptor, is activated by lipopolysaccharides (LPS) and induces the MyD88 pathway, which subsequently produces pro-inflammatory cytokines through activation of transcriptional nuclear factor (NF)-κB. Statins have been widely prescribed to reduce cholesterol synthesis for patients with cardiovascular disease. Statins may have pleiotropic effects, which include anti- and pro-inflammatory effects on cells. The molecular mechanism of the sequential influence of LPS and statin on the innate immune system remains unknown. We employed affinity purification-spacer-arm controlled cross-linking (AP-SPACC) MS-based proteomics analysis to identify the LPS- and statin-LPS-responsive proteins and their networks. LPS-stimulated RAW 264.7 macrophage cells singly and combined with the drug statin used in this study. Two chemical cross-linkers with different spacer chain lengths were utilized to stabilize the weak and transient interactors. Proteomic analysis identified 1631 differentially expressed proteins. We identified 151 immune-response proteins through functional enrichment analysis and visualized their interaction networks. Selected candidate protein-coding genes were validated, specifically squamous cell carcinoma antigens recognized by T cells 3, sphingosine-1-phosphate lyase 1, Ras-related protein Rab-35, and tumor protein D52 protein-coding genes through transcript-level expression analysis. The expressions of those genes were significantly increased upon statin treatment and decreased in LPS-stimulated macrophage cells. Therefore, we presumed that the expression changes of genes occurred due to immune response during activation of inflammation. These results highlight the immune-responsive proteins network, providing a new platform for novel investigations and discovering future therapeutic targets for inflammatory diseases.
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Affiliation(s)
- Abu Hena Mostafa Kamal
- Department of Chemistry and Biochemistry, University of Texas at Arlington, TX, 76019, USA. .,Advanced Technology Cores, Dan L Duncan Comprehensive Cancer Center, Metabolomics Core, Baylor College of Medicine, Houston, TX, 77030, USA.,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Jayanta K Chakrabarty
- Department of Chemistry and Biochemistry, University of Texas at Arlington, TX, 76019, USA. .,Quantitative Proteomics and Metabolomics Center, Columbia University, New York, NY, 10027, USA
| | - Saiful M Chowdhury
- Department of Chemistry and Biochemistry, University of Texas at Arlington, TX, 76019, USA.
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Mehta A, Kamal AHM, Cornelius S, Chowdhury SM. Protein-Protein Interaction Network Mapping by Affinity Purification Cross-Linking Mass Spectrometry (AP-XL-MS) based Proteomics. Methods Mol Biol 2023; 2690:255-267. [PMID: 37450153 DOI: 10.1007/978-1-0716-3327-4_22] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/18/2023]
Abstract
Protein-protein interactions (PPIs) are the physical interactions formed among proteins. These interactions are primarily functional, i.e., they arise from specific biomolecular events, and each interaction interface serves a specific purpose. A significant number of methods have been developed for protein interactions in the field of proteomics in the last decade. Advanced mass spectrometry technology significantly contributed to the development of these methods. The rapid advancement of groundbreaking MS technology has greatly aided the mapping of protein interaction from large-data sets comprehensively. This chapter describes the affinity purification (AP) mass spectrometry (MS)-based methods combined with chemical cross-linking (XL) of protein complexes. This chapter includes sample preparation methods involving cell culture, cell treatments with ligands, drugs, and cross-linkers, protein extractions, affinity purification, sodium dodecyl sulfate (SDS) polyacrylamide gel separation, in-solution or in-gel digestion, liquid-chromatography, and mass spectrometry analysis of samples (LC-MS/MS). Application of a cleavable cross-linker, dual cleavable cross-linking technology (DUCCT) in combination with the affinity purification (AP) method has also been described. Methods for data analysis using unmodified and cross-linked peptide analysis are discussed.
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Affiliation(s)
- Ashima Mehta
- Department of Chemistry and Biochemistry, University of Texas, Arlington, TX, USA
| | - Abu Hena Mostafa Kamal
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, USA
| | - Sharel Cornelius
- Department of Chemistry and Biochemistry, University of Texas, Arlington, TX, USA
| | - Saiful M Chowdhury
- Department of Chemistry and Biochemistry, University of Texas, Arlington, TX, USA.
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Murphy S, Mullarkey MP, Sahu U, Hong B, Lewis C, Diaz M, Wenzel P, Kamal AHM, Putluri N, Park J, Kaipparettu B, Kaur B. EXTH-77. TARGETING CD73 IN GBM SENSITIZES TUMORS TO ONCOLYTIC VIRUS THERAPY. Neuro Oncol 2022. [DOI: 10.1093/neuonc/noac209.875] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Abstract
Glioblastoma Multiforme (GBM) is the most aggressive malignant primary brain tumor and has abysmal 5-year overall survival. With the approval of oHSV Imlygic by FDA for metastatic melanoma and more recently, conditional approval of G47Δ, marketed by Daiichi Sankyo for GBM treatment in Japan, oncolytic viral therapy has emerged as a promising biological approach to treat solid tumors. Our laboratory has previously shown that oHSV expressing long isoform of PTEN (PTENα), HSV-P10, has faster kinetics of virus replication associated with enhanced killing of the glioma cells compared to control HSV. Additionally, HSVP-10 is known to increase mitochondrial membrane potential and cellular ATP production while stimulating anti-tumor immune responses in vivo. RNA sequencing of primary GBM cells infected with HSV-P10 shows altered metabolic pathways relative to control HSV infected cells. 13C metabolic flux analysis in uninfected and control or HSV-P10 infected primary GBM cells reveals that while HSV-P10 infection shuttles most of the glutamine towards citrate by reductive carboxylation of α-ketoglutarate resulting in faster replication of HSV-P10, simultaneously it increased glucose utilization and shuttling towards TCA cycle. This corroborates with enhanced mitochondrial activity leading to increased oxidative phosphorylation and increased cellular and extracellular ATP (eATP). eATP binds to purinergic receptors on tumor and immune cells and boosts anti-tumor immunity. However, the use of extracellular ATP in cancer therapy is limited owing to its short half-life and rapid hydrolysis by ectoenzymes CD39 and CD73 into immune-suppressing adenosine. CD73 carries out the conversion of AMP to adenosine, making it a key regulator of this pathway. Using mice with CD73 knocked out globally (CD73KO), we show that combination of CD73 inhibition with HSV-P10 imparts significant survival benefit compared to WT mice treated with HSV-P10. Our findings will further the understanding of oHSV therapy and the role of the ATP/adenosine in the tumor microenvironment.
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Affiliation(s)
- Sara Murphy
- Department of Neurosurgery, University of Texas Health Science Center at Houston , Houston, TX , USA
| | | | | | - Bangxing Hong
- Department of Neurosurgery, University of Texas Health Science Center at Houston , Houston , USA
| | - Cole Lewis
- University of Texas Health Science Center at Houston , Houston , USA
| | - Miguel Diaz
- University of Texas Health Science Center at Houston , Houston , USA
| | - Pamela Wenzel
- University of Texas Health Science Center at Houston , Houston , USA
| | | | | | | | | | - Balveen Kaur
- Department of Neurosurgery, University of Texas Health Science Center at Houston , Houston, TX , USA
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Shahinuzzaman ADA, Kamal AHM, Chakrabarty JK, Rahman A, Chowdhury SM. Identification of Inflammatory Proteomics Networks of Toll-like Receptor 4 through Immunoprecipitation-Based Chemical Cross-Linking Proteomics. Proteomes 2022; 10:proteomes10030031. [PMID: 36136309 PMCID: PMC9506174 DOI: 10.3390/proteomes10030031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/14/2022] [Accepted: 08/20/2022] [Indexed: 11/24/2022] Open
Abstract
Toll-like receptor 4 (TLR4) is a receptor on an immune cell that can recognize the invasion of bacteria through their attachment with bacterial lipopolysaccharides (LPS). Hence, LPS is a pro-immune response stimulus. On the other hand, statins are lipid-lowering drugs and can also lower immune cell responses. We used human embryonic kidney (HEK 293) cells engineered to express HA-tagged TLR-4 upon treatment with LPS, statin, and both statin and LPS to understand the effect of pro- and anti-inflammatory responses. We performed a monoclonal antibody (mAb) directed co-immunoprecipitation (CO-IP) of HA-tagged TLR4 and its interacting proteins in the HEK 293 extracted proteins. We utilized an ETD cleavable chemical cross-linker to capture weak and transient interactions with TLR4 protein. We tryptic digested immunoprecipitated and cross-linked proteins on beads, followed by liquid chromatography–mass spectrometry (LC-MS/MS) analysis of the peptides. Thus, we utilized the label-free quantitation technique to measure the relative expression of proteins between treated and untreated samples. We identified 712 proteins across treated and untreated samples and performed protein network analysis using Ingenuity Pathway Analysis (IPA) software to reveal their protein networks. After filtering and evaluating protein expression, we identified macrophage myristoylated alanine-rich C kinase substrate (MARCKSL1) and creatine kinase proteins as a potential part of the inflammatory networks of TLR4. The results assumed that MARCKSL1 and creatine kinase proteins might be associated with a statin-induced anti-inflammatory response due to possible interaction with the TLR4.
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Affiliation(s)
- A. D. A. Shahinuzzaman
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
- Pharmaceutical Sciences Research Division, Bangladesh Council of Scientific and Industrial Research (BCSIR), Dhaka 1205, Bangladesh
| | - Abu Hena Mostafa Kamal
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
- Advanced Technology Cores, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA
| | - Jayanta K. Chakrabarty
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
- Quantitative Proteomics and Metabolomics Center, Columbia University, New York, NY 10027, USA
| | - Aurchie Rahman
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
| | - Saiful M. Chowdhury
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX 76019, USA
- Correspondence: ; Tel.: +1-817-272-5439
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Fujita Y, Nunez-Rubiano L, Dono A, Bellman A, Shah M, Rodriguez JC, Putluri V, Kamal AHM, Putluri N, Riascos RF, Zhu JJ, Esquenazi Y, Ballester LY. IDH1 p.R132H ctDNA and D-2-hydroxyglutarate as CSF biomarkers in patients with IDH-mutant gliomas. J Neurooncol 2022; 159:261-270. [PMID: 35816267 PMCID: PMC10183250 DOI: 10.1007/s11060-022-04060-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 06/06/2022] [Indexed: 10/17/2022]
Abstract
INTRODUCTION We aimed to evaluate IDH1 p.R132H mutation and 2-hydroxyglutarate (2HG) in cerebrospinal fluid (CSF) as biomarkers for patients with IDH-mutant gliomas. METHODS CSF was collected from patients with infiltrating glioma, and 2HG levels were measured by liquid chromatography-mass spectrometry. IDH1 p.R132H mutant allele frequency (MAF) in CSF-ctDNA was measured by digital droplet PCR (ddPCR). Tumor volume was measured from standard-of-care magnetic resonance images. RESULTS The study included 48 patients, 6 with IDH-mutant and 42 with IDH-wildtype gliomas, and 57 samples, 9 from the patients with IDH-mutant and 48 from the patients with IDH-wildtype gliomas. ctDNA was detected in 7 of the 9 samples from patients with IDH-mutant glioma, and IDH1 p.R132H mutation was detected in 5 of the 7 samples. The MAF ranged from 0.3 to 39.95%. Total 2HG level, D-2HG level, and D/L-2HG ratio in CSF were significantly higher in patients with IDH-mutant gliomas than in patients with IDH-wildtype gliomas. D-2HG level and D/L-2HG ratio correlated with total tumor volume in patients with IDH-mutant gliomas but not in patients with IDH-wildtype gliomas. CONCLUSION Our results suggest that detection of IDH1 p.R132H mutation by ddPCR and increased D-2HG level in CSF may help identify IDH-mutant gliomas. Our results also suggest that D-2HG level and D/L-2HG ratio correlate with tumor volume in patients with IDH-mutant gliomas. Further prospective studies with larger cohorts are needed to validate these findings.
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Affiliation(s)
- Yoko Fujita
- Vivian L. Smith Department of Neurosurgery McGovern Medical School, The University of Texas Health Science Center, 6431 Fannin Street, Houston, TX, 77030, USA
| | - Luis Nunez-Rubiano
- Department of Radiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Antonio Dono
- Vivian L. Smith Department of Neurosurgery McGovern Medical School, The University of Texas Health Science Center, 6431 Fannin Street, Houston, TX, 77030, USA
| | - Allison Bellman
- Department of Pathology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
| | - Mauli Shah
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, 2130 West Holcombe Boulevard, Houston, TX, 77030, USA
| | - Juan C Rodriguez
- Vivian L. Smith Department of Neurosurgery McGovern Medical School, The University of Texas Health Science Center, 6431 Fannin Street, Houston, TX, 77030, USA
| | - Vasanta Putluri
- Advanced Technology Core, Metabolomics Core, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Abu Hena Mostafa Kamal
- Advanced Technology Core, Metabolomics Core, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Nagireddy Putluri
- Advanced Technology Core, Metabolomics Core, Baylor College of Medicine, Houston, TX, 77030, USA
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Roy F Riascos
- Department of Radiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA
- Memorial Hermann Hospital-TMC, Houston, TX, 77030, USA
| | - Jay-Jiguang Zhu
- Vivian L. Smith Department of Neurosurgery McGovern Medical School, The University of Texas Health Science Center, 6431 Fannin Street, Houston, TX, 77030, USA
- Memorial Hermann Hospital-TMC, Houston, TX, 77030, USA
| | - Yoshua Esquenazi
- Vivian L. Smith Department of Neurosurgery McGovern Medical School, The University of Texas Health Science Center, 6431 Fannin Street, Houston, TX, 77030, USA.
- Memorial Hermann Hospital-TMC, Houston, TX, 77030, USA.
- Center for Precision Health, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA.
| | - Leomar Y Ballester
- Department of Pathology, The University of Texas MD Anderson Cancer Center, Houston, 1515 Holcombe Blvd., Unit 85, Houston, TX, 77030, USA.
- Department of Translational Molecular Pathology, The University of Texas MD Anderson Cancer Center, 2130 West Holcombe Boulevard, Houston, TX, 77030, USA.
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10
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Hassan MK, Borkar R, Reddy KRK, Piyarathna DWB, Amara CS, Bellman A, Ambati CR, Putluri V, Kamal AHM, Bollag RJ, Terris MK, Ballester LY, Lotan Y, Coarfa C, Sreekumar A, Putluri N. Abstract 2379: Gender-specific metabolome in bladder cancer: Role of EPHX2 in bladder cancer. Cancer Res 2022. [DOI: 10.1158/1538-7445.am2022-2379] [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] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Bladder cancer (BLCA) is the fourth most common cancer diagnosed in American men. In the U.S., men are four times more likely to be diagnosed with bladder cancer than women. Our research group has previously identified alterations in xenobiotic metabolism in BLCA. In this study, using a metabolomics approach, we identified alterations in the arachidonic acid pathway in bladder tumors from male versus female patients. Included within this altered arachidonic acid pathway was downregulation of EPHX2, an enzyme that converts epoxyeicosatrienoic acids (EETs) to dihydroxyeicosatrienoic acids (DiHETs). Consistent with this, levels of EETs were significantly elevated in bladder tumors derived from male versus female patients. Cox proportional hazard regression analysis further revealed that reduced expression of EPHX2 was significantly associated with poor clinical outcome across multiple publicly available datasets only in male BLCA patients but not in females. Mechanistic studies revealed that EPHX2 over-expression in male-derived BLCA cell line reduced cell growth in vitro and tumor growth in vivo. Overall, these studies nominate EPHX2 as a potential tumor suppressor in male patients with BLCA.
Citation Format: Mohammed Khurshidul Hassan, Roshan Borkar, Karthik Reddy Kami Reddy, Danthasinghe Waduge Badrajee Piyarathna, Chandra Shekar Amara, Allison Bellman, ChandraShekar R. Ambati, Vasanta Putluri, Abu Hena Mostafa Kamal, Roni J. Bollag, Martha K. Terris, Leomar Y. Ballester, Yair Lotan, Cristian Coarfa, Arun Sreekumar, Nagireddy Putluri. Gender-specific metabolome in bladder cancer: Role of EPHX2 in bladder cancer [abstract]. In: Proceedings of the American Association for Cancer Research Annual Meeting 2022; 2022 Apr 8-13. Philadelphia (PA): AACR; Cancer Res 2022;82(12_Suppl):Abstract nr 2379.
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Affiliation(s)
| | | | | | | | | | - Allison Bellman
- 2The University of Texas Health Science Center (UTHealth), Houston, TX
| | | | | | | | | | | | | | - Yair Lotan
- 5University of Texas Southwestern, Dallas, TX
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11
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Kami Reddy KR, Piyarathna DWB, Kamal AHM, Putluri V, Ravi SS, Bollag RJ, Terris MK, Lotan Y, Putluri N. Lipidomic Profiling Identifies a Novel Lipid Signature Associated with Ethnicity-Specific Disparity of Bladder Cancer. Metabolites 2022; 12:metabo12060544. [PMID: 35736477 PMCID: PMC9230655 DOI: 10.3390/metabo12060544] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/03/2022] [Accepted: 06/09/2022] [Indexed: 11/28/2022] Open
Abstract
Bladder Cancer (BLCA) is the ninth most frequently diagnosed cancer globally and the sixth most common cancer in the US. African Americans (AA) exhibit half the BLCA incidence compared to European Americans (EA), but they have a 70% higher risk of cancer-related death; unfortunately, this disparity in BLCA mortality remains poorly understood. In this study, we have used an ethnicity-balanced cohort for unbiased lipidomics profiling to study the changes in the lipid fingerprint for AA and EA BLCA tissues collected from similar geographical regions to determine a signature of ethnic-specific alterations. We identified 86 lipids significantly altered between self-reported AA and EA BLCA patients from Augusta University (AU) cohort. The majority of altered lipids belong to phosphatidylcholines (PCs), phosphatidylethanolamines (PEs), ly sophosphatidylcholines (lysoPCs), phosphatidylserines (PSs), and diglycerides (DGs). Interestingly, levels of four lysoPCs (lyso PCs 20:3, lyso PCs 22:1, lyso PCs 22:2, and lyso PCs 26:1) were elevated while, in contrast, the majority of the PCs were reduced in AA BLCA. Significant alterations in long-chain monounsaturated (MonoUN) and polyunsaturated (PolyUN) lipids were also observed between AA and EA BLCA tumor tissues. These first-in-field results implicate ethnic-specific lipid alterations in BLCA.
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Affiliation(s)
- Karthik Reddy Kami Reddy
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (K.R.K.R.); (D.W.B.P.); (S.S.R.)
| | | | - Abu Hena Mostafa Kamal
- Advanced Technology Cores, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (A.H.M.K.); (V.P.)
| | - Vasanta Putluri
- Advanced Technology Cores, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (A.H.M.K.); (V.P.)
| | - Shiva Shankar Ravi
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (K.R.K.R.); (D.W.B.P.); (S.S.R.)
| | - Roni J. Bollag
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA; (R.J.B.); (M.K.T.)
| | - Martha K. Terris
- Georgia Cancer Center, Augusta University, Augusta, GA 30912, USA; (R.J.B.); (M.K.T.)
| | - Yair Lotan
- Department of Urology, University of Texas Southwestern, Dallas, TX 75390, USA;
| | - Nagireddy Putluri
- Department of Molecular and Cellular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (K.R.K.R.); (D.W.B.P.); (S.S.R.)
- Advanced Technology Cores, Dan L Duncan Comprehensive Cancer Center, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA; (A.H.M.K.); (V.P.)
- Correspondence:
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12
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Askarian M, Semenov A, Llopis F, Rubulotta F, Dragovac G, Pshenichnaya N, Assadian O, Ruch Y, Shayan Z, Padilla Fortunatti C, Lucey D, Almohaizeie A, Kamal AHM, Ogunshe A, Konkayev A, Beg A, Primerano E, Amer F, Kumari Pilli HP, Hung I, Ayoade F, Lefrant JY, Zajkowska J, Rello J, Kazi M, Taghrir MH, Blot S, Leib S, Hosseinpour P, Hosseinpour H, Erfani A, Borazjani R, Akbarialiabad H, Najafi M, Askarian A, Erdem H. The COVID-19 vaccination acceptance/hesitancy rate and its determinants among healthcare workers of 91 Countries: A multicenter cross-sectional study. EXCLI J 2022; 21:93-103. [PMID: 35221837 PMCID: PMC8859647 DOI: 10.17179/excli2021-4439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 12/15/2021] [Indexed: 12/23/2022]
Abstract
The aim of this study was to investigate the COVID-19 vaccination acceptance rate and its determinants among healthcare workers in a multicenter study. This was a cross-sectional multi-center survey conducted from February 5 to April 29, 2021. The questionnaire consisted of 26 items in 6 subscales. The English version of the questionnaire was translated into seven languages and distributed through Google Forms using snowball sampling; a colleague in each country was responsible for the forward and backward translation, and also the distribution of the questionnaire. A forward stepwise logistic regression was utilized to explore the variables and questionnaire factors tied to the intention to COVID-19 vaccination. 4630 participants from 91 countries completed the questionnaire. According to the United Nations Development Program 2020, 43.6 % of participants were from low Human Development Index (HDI) regions, 48.3 % high and very high, and 8.1 % from medium. The overall vaccination hesitancy rate was 37 %. Three out of six factors of the questionnaire were significantly related to intention to the vaccination. While 'Perceived benefits of the COVID-19 vaccination' (OR: 3.82, p-value<0.001) and 'Prosocial norms' (OR: 5.18, p-value<0.001) were associated with vaccination acceptance, 'The vaccine safety/cost concerns' with OR: 3.52, p-value<0.001 was tied to vaccination hesitancy. Medical doctors and pharmacists were more willing to take the vaccine in comparison to others. Importantly, HDI with OR: 12.28, 95 % CI: 6.10-24.72 was a strong positive determinant of COVID-19 vaccination acceptance. This study highlighted the vaccination hesitancy rate of 37 % in our sample among HCWs. Increasing awareness regarding vaccination benefits, confronting the misinformation, and strengthening the prosocial norms would be the primary domains for maximizing the vaccination coverage. The study also showed that the HDI is strongly associated with the vaccination acceptance/hesitancy, in a way that those living in low HDI contexts are more hesitant to receive the vaccine.
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Affiliation(s)
- Mehrdad Askarian
- Department of Community Medicine, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Health Behavior Science Research Center, Shiraz University of Medical Sciences, Shiraz
| | - Aleksandr Semenov
- Ekaterinburg Research Institute of Viral Infections SRC VB Vector, Ekaterinburg, Russia
| | - Ferran Llopis
- Emergency Department. Bellvitge University Hospital, l'Hospitalet de Llobregat, Barcelona, Spain
| | - Francesca Rubulotta
- Department of Intensive Care Medicine, Charing Cross Hospital, Imperial College, NHS Trust London, UK
| | - Gorana Dragovac
- Department of Epidemiology, Faculty of Medicine, University of Novi Sad, Serbia; Center of Disease Prevention and Control, Institute of Public Health of Vojvodina, Novi Sad, Serbia
| | - Natalia Pshenichnaya
- Clinical Department of Infectious Pathology, Central Research Institute of Epidemiology, Moscow, Russia
| | - Ojan Assadian
- Regional Hospital Wiener Neustadt, Austria; Institute of Skin Integrity and Infection Prevention, University of Huddersfield, UK
| | - Yvon Ruch
- Department of Infectious Diseases, Strasbourg University Hospital, Strasbourg, France
| | - Zahra Shayan
- Trauma Research Center, Department of Biostatistics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Daniel Lucey
- Department of Infectious Diseases, Georgetown University Medical Center, Washington, DC 20057, USA
| | - Abdullah Almohaizeie
- King Faisal Specialist Hospital and Research Center, Riyadh, Alfaisal University Riyadh, Saudi Arabia
| | - Abu Hena Mostafa Kamal
- Department of Anaesthesiology & ICU, Rajshahi Medical College Hospital, Rajshahi, Bangladesh
| | - Adenike Ogunshe
- Applied Microbiology and Infectious Diseases, Department of Microbiology, Faculty of Science, University of Ibadan, Oyo State, Nigeria
| | - Aidos Konkayev
- Department of Anesthesiology and Intensive Care, Astana Medical University, Nur-Sultan, Kazakhstan; National Centre of Traumatology and Orthopedia named by Batpenov, Nur-Sultan, Kazakhstan
| | - Asim Beg
- Department of Pathology and Laboratory Medicine, Aga Khan University, Karachi, Pakistan
| | - Enzo Primerano
- Department of Anesthesia and Intensive Care, Polyclinic of Monza, Monza, Italy
| | - Fatma Amer
- Department of Medical Microbiology and Immunology, School of Medicine, Zagazig University, Zagazig, Egypt
| | - Hema Prakash Kumari Pilli
- Department of Microbiology, GITAM Institute of Medical Sciences and Research, GITAM , Deemed to be University, Visakhapatnam, India
| | - Ivan Hung
- Department of Infectious Diseases; Gastroenterology & Hepatology, The University of Hong Kong
| | - Folusakin Ayoade
- Division of Infectious Diseases, Department of Medicine, University of Miami Miller School of Medicine, Miami, FL 33136, USA
| | - Jean Yves Lefrant
- Department of Anaesthesia, Critical Care Emergency and Pain Medicine, University Hospital of Nimes, Montpellier University, Nimes, France
| | - Joanna Zajkowska
- Department of Infectious Diseases and Neuroinfections, Medical University in Biaøystok, Poland
| | - Jordi Rello
- CRIPS, Vall Hebron Institute of Research (VHIR) & CHRU Nimes, Nimes, France
| | - Momin Kazi
- Research Department of Paediatrics and Child Health, Aga Khan University, Karachi, Pakistan
| | - Mohammad Hossein Taghrir
- Trauma Research Center, Shahid Rajaee (Emtiaz) Trauma Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Stijn Blot
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Stephen Leib
- Institute for Infectious Diseases, University of Bern, Bern, Switzerland
| | - Parisa Hosseinpour
- School of Medicine, Islamic Azad University, Kazeroun branch, Kazeroun, Iran
| | - Hamidreza Hosseinpour
- Department of Surgery, Shiraz Laparoscopic Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Amirhossein Erfani
- Thoracic and Vascular Surgery Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Roham Borazjani
- Trauma Research Center, Shahid Rajaee (Emtiaz) Trauma Hospital, Shiraz University of Medical Sciences, Shiraz, Iran
| | | | - Masoud Najafi
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ardalan Askarian
- Student, College of Arts & Science, University of Saskatchewan, Saskatoon, Canada
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Pisani L, Algera AG, Neto AS, Azevedo L, Pham T, Paulus F, de Abreu MG, Pelosi P, Dondorp AM, Bellani G, Laffey JG, Schultz MJ, Martinez A, Leal L, Jorge Pereira A, de Oliveira Maia M, Neto JA, Piras C, Caser EB, Moreira CL, Braga Gusman P, Dalcomune DM, Ribeiro de Carvalho AG, Gondim LAR, Castelo Branco Reis LM, da Cunha Ribeiro D, de Assis Simões L, Campos RS, Fernandez Versiani dos Anjos JC, Bruzzi Carvalho F, Alves RA, Nunes LB, Réa-Neto Á, de Oliveira MC, Tannous L, Cardoso Gomes B, Rodriguez FB, Abelha P, Lugarinho ME, Japiassu A, de Melo HK, Lopes EA, Varaschin P, de Souza Dantas VC, Freitas Knibel M, Ponte M, de Azambuja Rodrigues PM, Costa Filho RC, Saddy F, Wanderley Castellões TF, Silva SA, Osorio LAG, Mannarino D, Espinoza R, Righy C, Soares M, Salluh J, Tanaka L, Aragão D, Tavares ME, Kehdi MGP, Rezende VMC, Carbonell RCC, Teixeira C, de Oliveira RP, Maccari JG, Castro PS, Berto P, Schwarz P, Torelly AP, Lisboa T, Moraes E, Dal-Pizzol F, Tomasi Damiani C, Ritter C, Ferreira JC, Teixeira Costa R, Caruso P, Amendola CP, de Oliveira AMRR, Silva UVA, Sanches LC, Almeida RDS, Azevedo LC, Park M, Schettino G, Assunção MS, Silva E, Barboza CE, Junior APN, Marzocchi Tierno PFGM, Malbouisson LM, Oliveira L, Cristovao D, Neto ML, Rego Ê, Fernandes FE, Romano MLP, Cavalcanti AB, de Souza Barros D, Rodgers H, Dixon B, Smith R, Kol M, Wong H, Schmid W, Hermans G, Ceunen H, Bourgeois M, Anquez N, Suzumura ÉA, Decruyenaere J, DeCrop L, Neto AS, Souza dos Santos R, Beraldo D, dos Santos MC, Pellegrini JAS, Piras C, Oliveira V, Munhoz C, Meira KL, Peçanha AC, da Silva Ramos FJ, Maia I, Bahl M, Biondi R, Prado D, Pinto SF, Salgado J, Falcão LF, Macruz T, de Oliveira GA, Cavalcanti AB, Romano MLP, Ruas K, Mecatti GC, Caser EB, Gava IA, Carreño N, Morales M, Avendaño R, Aguirre S, Luciano PM, Sribar A, Klaric V, Skilijic S, Dvorscak MB, Krkusek M, Jurjevic M, Karanovic N, Simurina T, Stourac P, Kratochvil M, Pacheco ED, Máca J, Wrigge H, Schlegel C, Treschan TA, Schaefer M, Aytulun A, Kienbaum P, Clarkson K, Jaafar R, Collins D, Mazza BF, Plant R, Melchionda G, Di Lauro E, Cortegiani A, Russotto V, Caione R, Mestria D, Volta CA, Spadaro S, Botteri M, Machado FR, Seghelini E, Brazzi L, Sales G, D'Antini D, Molin A, Severgnini P, Bacuzzi A, Peluso L, Verrastro P, Raimondo P, Ferreira E, Gecaj-Gashi A, Simonis FD, Tuinman PR, Alberts E, van den Hul I, Kuiper M, de Wilde RBP, Koopmans M, Kose I, Zincircioglu Ç, dos Santos RB, Dogan N, Aydin D, Denker AS, Buyukkocak U, Akgun N, Turan G, Senturk E, Demirtürk Z, Özcan PE, Ekinci O, Colombo AS, Saylan S, Eren G, Ulger F, Dilek A, Ulusoy H, Goktas U, Soyoral L, Toman H, Orak Y, Kahveci F, Nogueira AC, Mills GH, Pinder A, Walker R, Harrison J, Snell J, Seasman C, Pearson R, Sharman M, Kaloo C, Bynorth N, Fernandes JB, Matthews K, Hughes C, Rose A, Simeson K, Niska L, Huneke N, Adderly J, Padilla-Harris C, Oliver R, Brohi F, Nóbrega RS, Wilson N, Talbot H, Wilson D, Smith D, Dark P, Evans T, Fisher N, Montgomery J, Fitzell P, Muench C, do CS Martins B, Hugill K, Cirstea E, Bentley A, Lynch K, White I, Cooper J, Brazier M, Devile M, Parris M, Gill P, Soriano F, Patel T, Criswell J, Trodd D, Griffin D, Martin J, Wreybrown C, Bewley J, Sweet K, Grimmer L, Kozlowski M, Morsch RD, James S, Limb J, Cowton A, Rogerson D, Downes C, Melbourne S, Humphries R, Pulletz M, Moreton S, Janes S, Nunes ALB, Corner A, Linnett V, Ritzema J, Watters M, Windebank S, Chenna S, Howard-Griffin R, Turner K, Suresh S, Blaylock H, de Almeida JP, Bell S, Blenk K, Everett L, Hopkins P, Mellis C, Hadfield D, Harris C, Chan A, Birch S, Pegg C, Hajjar L, Plowright C, Cooper L, Hatton T, McCullagh I, Wright S, Scott C, Boyd C, Holliday M, Poultney U, Crowther H, Moulin S, Thornthwaite S, Hollister N, Hunt J, Skinner A, Matsa R, Salt R, Matthews C, Reschreiter H, Camsooksai J, Venner N, Giannini FP, Barcraft-Barnes H, Tbaily L, Pogson D, Mouland J, Rose S, Lamb N, Tarmey N, Knighton J, Giles J, Weller D, Baptiston Nunes AL, Reed I, Hormis A, Pearson S, Harris M, Howe J, Paddle J, Burt K, Welters I, Walker A, Youds L, Rios F, Hendry S, Shaw D, Williams K, Hollands R, Carnahan M, Stickley J, Miller C, Donaldson D, Tonks L, Creagh-Brown B, Van Haren F, Hull D, Boyd O, Ortiz-Ruiz L, Gopal S, Metherell S, Spencer H, Frey C, Brown C, Clifford G, Leaver S, Sottiaux T, Ryan C, Mellinghoff JM, Prudden SP, Green HG, Roy AR, Furneval JF, Bell AB, Lakhani SL, Fasting LF, Murray LM, Lora FS, Preller K, McInerney A, Beavis S, Whileman A, Toms J, Glenn S, Ramali M, Ghosh A, Bullock C, Barrell L, Azevedo LC, Young E, Robertson H, Faulkner M, MacNaughton P, Tyson S, Pulak P, Sewell TA, Smalley C, Jacob R, Santos C, Depuydt P, Alzugaray P, Vidal Melo MF, Joyce K, Needleman J, Ahsan A, Faiz A, Alam AKMS, Khatoon SN, Nath RK, Rahman Chowdhury MA, Fan E, Banik D, Mondol MK, Bhuiyan SR, Nazneed S, Sultana R, Hamid T, Hossain M, Reza ST, Asaduzzaman M, Salim M, Bugedo G, Mostafa Kamal AH, Taher SM, Taohid TM, Karmaker P, Roy S, Das S, Sarkar SA, Dutta ML, Roy P, Iyer S, Qiu H, Krishna B, Sampath S, Pattnaik R, Kasi CK, Shah J, Dongre A, Reza Hashemian SM, Nooraei N, Raessi Estabragh R, Malekmohammad M, Gonzalez M, Khoundabi B, Mobasher M, Mohd Yunos N, Kassim M, Voon CM, Das SS, Azauddin SNS, Dorasamy D, Tai LL, Mat Nor MB, Silesky J, Zarudin N, Hasan MS, Jamaluddin MFH, Othman Jailani MI, Kayashta G, Adhikari A, Pangeni R, Hashmi M, Joseph S, Akhtar A, Cerny V, Qadeer A, Memon I, Ali SM, Idrees F, Kamal S, Hanif S, Rehman AU, Taqi A, Hussain T, Farooq A, Nielsen J, Khaskheli S, Hayat M, Indraratna K, Beane A, Haniffa R, Samaranayake U, Mathanalagan S, Gunaratne A, Mithraratne N, Thilakasiri K, Jibaja M, Pilimatalawwe C, Dilhani YAH, Fernando M, Ranatunge K, Samarasinghe L, Vaas M, Edirisooriya M, Sigera C, Arumoli J, De Silva K, Pham T, Kudavidanage B, Pinto V, Dissanayake L, Chittawatanarat K, Kongpolprom N, Silachamroon U, Pornsuriyasak P, Petnak T, Singhatas P, Tangsujaritvijit V, Wrigge H, Rungruanghiranya S, Piriyapatsom A, Juntaping K, Trongtrakul K, Thungtitigul P, Tajarernmuang P, Chatmongkolchart S, Bhurayanontachai R, Akaraborworn O, Navasakulpong A, Matamis D, Surasit K, Thwaites L, Nadjm B, Vu Quoc D, Nguyen Thi Thanh H, Nguyen Van K, Duong Bich T, Lam Minh Y, Ranero JL, Hashemian SM, Amin P, Clarkson K, Bellani G, Kurahashi K, Villagomez A, Zeggwagh AA, Heunks LM, Laake JH, Palo JE, do Vale Fernandes A, Sandesc D, Arabi Y, Bumbasierevic V, Lorente JA, Larsson A, Piquilloud L, Abroug F, McAuley DF, McNamee L, Hurtado J, Bajwa E, Démpaire G, Francois GM, Sula H, Nunci L, Cani A, Zazu A, Dellera C, Insaurralde CS, Alejandro RV, Daldin J, Vinzio M, Fernandez RO, Cardonnet LP, Bettini LR, Bisso MC, Osman EM, Setten MG, Lovazzano P, Alvarez J, Villar V, Milstein C, Pozo NC, Grubissich N, Plotnikow GA, Vasquez DN, Ilutovich S, Tiribelli N, Chena A, Pellegrini CA, Saenz MG, Estenssoro E, Brizuela M, Gianinetto H, Gomez PE, Cerrato VI, Bezzi MG, Borello SA, Loiacono FA, Fernandez AM, Knowles S, Reynolds C, Inskip DM, Miller JJ, Kong J, Whitehead C, Bihari S, Seven A, Krstevski A, Rodgers HJ, Millar RT, Mckenna TE, Bailey IM, Hanlon GC, Aneman A, Lynch JM, Azad R, Neal J, Woods PW, Roberts BL, Kol MR, Wong HS, Riss KC, Staudinger T, Wittebole X, Berghe C, Bulpa PA, Dive AM, Verstraete R, Lebbinck H, Depuydt P, Vermassen J, Meersseman P, Ceunen H, Rosa JI, Beraldo DO, Piras C, Ampinelli AMR, Nassar Jr AP, Mataloun S, Moock M, Thompson MM, Gonçalves CH, Antônio ACP, Ascoli A, Biondi RS, Fontenele DC, Nobrega D, Sales VM, Shindhe S, Ismail DMABPH, Laffey J, Beloncle F, Davies KG, Cirone R, Manoharan V, Ismail M, Goligher EC, Jassal M, Nishikawa E, Javeed A, Curley G, Rittayamai N, Parotto M, Ferguson ND, Mehta S, Knoll J, Pronovost A, Canestrini S, Bruhn AR, Garcia PH, Aliaga FA, Farías PA, Yumha JS, Ortiz CA, Salas JE, Saez AA, Vega LD, Labarca EF, Martinez FT, Carreño NG, Lora P, Liu H, Qiu H, Liu L, Tang R, Luo X, An Y, Zhao H, Gao Y, Zhai Z, Ye ZL, Wang W, Li W, Li Q, Zheng R, Yu W, Shen J, Li X, Yu T, Lu W, Wu YQ, Huang XB, He Z, Lu Y, Han H, Zhang F, Sun R, Wang HX, Qin SH, Zhu BH, Zhao J, Liu J, Li B, Liu JL, Zhou FC, Li QJ, Zhang XY, Li-Xin Z, Xin-Hua Q, Jiang L, Gao YN, Zhao XY, Li YY, Li XL, Wang C, Yao Q, Yu R, Chen K, Shao H, Qin B, Huang QQ, Zhu WH, Hang AY, Hua MX, Li Y, Xu Y, Di YD, Ling LL, Qin TH, Wang SH, Qin J, Han Y, Zhou S, Vargas MP, Silesky Jimenez JI, González Rojas MA, Solis-Quesada JE, Ramirez-Alfaro CM, Máca J, Sklienka P, Gjedsted J, Christiansen A, Nielsen J, Villamagua BG, Llano M, Burtin P, Buzancais G, Beuret P, Pelletier N, Mortaza S, Mercat A, Chelly J, Jochmans S, Terzi N, Daubin C, Carteaux G, de Prost N, Chiche JD, Daviaud F, Pham T, Fartoukh M, Barberet G, Biehler J, Dellamonica J, Doyen D, Arnal JM, Briquet A, Hraiech S, Papazian L, Follin A, Roux D, Messika J, Kalaitzis E, Dangers L, Combes A, Au SM, Béduneau G, Carpentier D, Zogheib EH, Dupont H, Ricome S, Santoli FL, Besset SL, Michel P, Gelée B, Danin PE, Goubaux B, Crova PJ, Phan NT, Berkelmans F, Badie JC, Tapponnier R, Gally J, Khebbeb S, Herbrecht JE, Schneider F, Declercq PLM, Rigaud JP, Duranteau J, Harrois A, Chabanne R, Marin J, Bigot C, Thibault S, Ghazi M, Boukhazna M, Ould Zein S, Richecoeur JR, Combaux DM, Grelon F, Le Moal C, Sauvadet EP, Robine A, Lemiale V, Reuter D, Dres M, Demoule A, Goldgran-Toledano D, Baboi L, Guérin C, Lohner R, Kraßler J, Schäfer S, Zacharowski KD, Meybohm P, Reske AW, Simon P, Hopf HBF, Schuetz M, Baltus T, Papanikolaou MN, Papavasilopoulou TG, Zacharas GA, Ourailogloy V, Mouloudi EK, Massa EV, Nagy EO, Stamou EE, Kiourtzieva EV, Oikonomou MA, Avila LE, Cortez CA, Citalán JE, Jog SA, Sable SD, Shah B, Gurjar M, Baronia AK, Memon M, Muthuchellappan R, Ramesh VJ, Shenoy A, Unnikrishnan R, Dixit SB, Rhayakar RV, Ramakrishnan N, Bhardwaj VK, Mahto HL, Sagar SV, Palaniswamy V, Ganesan D, Mohammadreza Hashemian S, Jamaati H, Heidari F, Meaney EA, Nichol A, Knapman KM, O'Croinin D, Dunne ES, Breen DM, Clarkson KP, Jaafar RF, Dwyer R, Amir F, Ajetunmobi OO, O'Muircheartaigh AC, Black CS, Treanor N, Collins DV, Altaf W, Zani G, Fusari M, Spadaro S, Volta CA, Graziani R, Brunettini B, Palmese S, Formenti P, Umbrello M, Lombardo A, Pecci E, Botteri M, Savioli M, Protti A, Mattei A, Schiavoni L, Tinnirello A, Todeschini M, Giarratano A, Cortegiani A, Sher S, Rossi A, Antonelli MM, Montini LM, Casalena P, Scafetti S, Panarello G, Occhipinti G, Patroniti N, Pozzi M, Biscione RR, Poli MM, Raimondi F, Albiero D, Crapelli G, Beck E, Pota V, Schiavone V, Molin A, Tarantino F, Monti G, Frati E, Mirabella L, Cinnella G, Fossali T, Colombo R, Terragni P, Pattarino I, Mojoli F, Braschi A, Borotto EE, Cracchiolo AN, Palma DM, Raponi F, Foti G, Vascotto ER, Coppadoro A, Brazzi L, Floris L, Iotti GA, Venti A, Yamaguchi O, Takagi S, Maeyama HN, Watanabe E, Yamaji Y, Shimizu K, Shiozaki K, Futami S, Ryosuke S, Saito K, Kameyama Y, Ueno K, Izawa M, Okuda N, Suzuki H, Harasawa T, Nasu M, Takada T, Ito F, Nunomiya S, Koyama K, Abe T, Andoh K, Kusumoto K, Hirata A, Takaba A, Kimura H, Matsumoto S, Higashijima U, Honda H, Aoki N, Imai H, Ogino Y, Mizuguchi I, Ichikado K, Nitta K, Mochizuki K, Hashida T, Tanaka H, Nakamura T, Niimi D, Ueda T, Kashiwa Y, Uchiyama A, Sabelnikovs O, Oss P, Haddad Y, Liew KY, Ñamendys-Silva SA, Jarquin-Badiola YD, Sanchez-Hurtado LA, Gomez-Flores SS, Marin MC, Villagomez AJ, Lemus JS, Fierro JM, Cervantes MR, Mejia FJF, Gonzalez DR, Dector DM, Estrella CR, Sanchez-Medina JR, Ramirez-Gutierrez A, George FG, Aguirre JS, Buensuseso JA, Poblano M, Dendane T, Zeggwagh AA, Balkhi H, Elkhayari M, Samkaoui N, Ezzouine H, Benslama A, Amor M, Maazouzi W, Cimic N, Beck O, Bruns MM, Schouten JA, Rinia M, Raaijmakers M, Heunks LM, Van Wezel HM, Heines SJ, Buise MP, Simonis FD, Schultz MJ, Goodson JC, rowne TSB, Navarra L, Hunt A, Hutchison RA, Bailey MB, Newby L, Mcarthur C, Kalkoff M, Mcleod A, Casement J, Hacking DJ, Andersen FH, Dolva MS, Laake JH, Barratt-Due A, Noremark KAL, Søreide E, Sjøbø BÅ, Guttormsen AB, Yoshido HHL, Aguilar RZ, Oscanoa FAM, Alisasis AU, Robles JB, Pasanting-Lim RAB, Tan BC, Andruszkiewicz P, Jakubowska K, Cox CM, Alvarez AM, Oliveira BS, Montanha GM, Barros NC, Pereira CS, Messias AM, Monteiro JM, Araujo AM, Catorze NT, Marum SM, Bouw MJ, Gomes RM, Brito VA, Castro S, Estilita JM, Barros FM, Serra IM, Martinho AM, Tomescu DR, Marcu A, Bedreag OH, Papurica M, Corneci DE, Negoita SI, Grigoriev E, Gritsan AI, Gazenkampf AA, Almekhlafi G, Albarrak MM, Mustafa GM, Maghrabi KA, Salahuddin N, Aisa TM, Al Jabbary AS, Tabhan E, Arabi YM, Trinidad OA, Al Dorzi HM, Tabhan EE, Bolon S, Smith O, Mancebo J, Aguirre-Bermeo H, Lopez-Delgado JC, Esteve F, Rialp G, Forteza C, De Haro C, Artigas A, Albaiceta GM, De Cima-Iglesias S, Seoane-Quiroga L, Ceniceros-Barros A, Ruiz-Aguilar AL, Claraco-Vega LM, Soler JA, Lorente MDC, Hermosa C, Gordo F, Prieto-González M, López-Messa JB, Perez MP, Pere CP, Allue RM, Roche-Campo F, Ibañez-Santacruz M, Temprano S, Pintado MC, De Pablo R, Gómez PRA, Ruiz SR, Moles SI, Jurado MT, Arizmendi A, Piacentini EA, Franco N, Honrubia T, Perez Cheng M, Perez Losada E, Blanco J, Yuste LJ, Carbayo-Gorriz C, Cazorla-Barranquero FG, Alonso JG, Alda RS, Algaba Á, Navarro G, Cereijo E, Diaz-Rodriguez E, Marcos DP, Montero LA, Para LH, Sanchez RJ, Blasco Navalpotro MA, Abad RD, Montiel González R, Toribio DP, Castro AG, Artiga MJD, Penuelas O, Roser TP, Olga MF, Curto EG, Sánchez RM, Imma VP, Elisabet GM, Claverias L, Magret M, Pellicer AM, Rodriguez LL, Sánchez-Ballesteros J, González-Salamanca Á, Jimenez AG, Huerta FP, Diaz JCJS, Lopez EB, Moya DDL, Alfonso AAT, Eugenio Luis PS, Cesar PS, Rafael SI, Virgilio CG, Recio NN, Adamsson RO, Rylander CC, Holzgraefe B, Broman LM, Wessbergh J, Persson L, Schiöler F, Kedelv H, Tibblin AO, Appelberg H, Hedlund L, Helleberg J, Eriksson KE, Glietsch R, Larsson N, Nygren I, Nunes SL, Morin AK, Kander T, Adolfsson A, Piquilloud L, Zender HO, Leemann-Refondini C, Elatrous S, Bouchoucha S, Chouchene I, Ouanes I, Ben Souissi A, Kamoun S, Demirkiran O, Aker M, Erbabacan E, Ceylan I, Girgin NK, Ozcelik M, Ünal N, Meco BC, Akyol OO, Derman SS, Kennedy B, Parhar K, Srinivasa L, McNamee L, McAuley D, Steinberg J, Hopkins P, Mellis C, Stansil F, Kakar V, Hadfield D, Brown C, Vercueil A, Bhowmick K, Humphreys SK, Ferguson A, Mckee R, Raj AS, Fawkes DA, Watt P, Twohey L, Thomas RRJM, Morton A, Kadaba V, Smith MJ, Hormis AP, Kannan SG, Namih M, Reschreiter H, Camsooksai J, Kumar A, Rugonfalvi S, Nutt C, Oneill O, Seasman C, Dempsey G, Scott CJ, Ellis HE, Mckechnie S, Hutton PJ, Di Tomasso NN, Vitale MN, Griffin RO, Dean MN, Cranshaw JH, Willett EL, Ioannou N, Gillis S, Csabi P, Macfadyen R, Dawson H, Preez PD, Williams AJ, Boyd O, De Gordoa LOR, Bramall J, Symmonds S, Chau SK, Wenham T, Szakmany T, Toth-Tarsoly P, Mccalman KH, Alexander P, Stephenson L, Collyer T, Chapman R, Cooper R, Allan RM, Sim M, Wrathall DW, Irvine DA, Zantua KS, Adams JC, Burtenshaw AJ, Sellors GP, Welters ID, Williams KE, Hessell RJ, Oldroyd MG, Battle CE, Pillai S, Kajtor I, Sivashanmugave M, Okane SC, Donnelly A, Frigyik AD, Careless JP, May MM, Stewart R, Trinder TJ, Hagan SJ, Wise MP, Cole JM, MacFie CC, Dowling AT, Hurtado J, Nin N, Hurtado J, Nuñez E, Pittini G, Rodriguez R, Imperio MC, Santos C, França AG, Ebeid A, Deicas A, Serra C, Uppalapati A, Kamel G, Banner-Goodspeed VM, Beitler JR, Mukkera SR, Kulkarni S, Lee J, Mesar T, Shinn Iii JO, Gomaa D, Tainter C, Mesar T, Cowley RA, Yeatts DJ, Warren J, Lanspa MJ, Miller RR, Grissom CK, Brown SM, Bauer PR, Gosselin RJ, Kitch BT, Cohen JE, Beegle SH, Gueret RM, Tulaimat A, Choudry S, Stigler W, Batra H, Huff NG, Lamb KD, Oetting TW, Mohr NM, Judy C, Saito S, Kheir FM, Schlichting AB, Delsing A, Elmasri M, Crouch DR, Ismail D, Blakeman TC, Dreyer KR, Gomaa D, Baron RM, Grijalba CQ, Hou PC, Seethala R, Aisiku I, Henderson G, Frendl G, Hou SK, Owens RL, Schomer A, Bumbasirevic V, Jovanovic B, Surbatovic M, Veljovic M, Van Haren F. Geoeconomic variations in epidemiology, ventilation management, and outcomes in invasively ventilated intensive care unit patients without acute respiratory distress syndrome: a pooled analysis of four observational studies. The Lancet Global Health 2022; 10:e227-e235. [PMID: 34914899 PMCID: PMC8766316 DOI: 10.1016/s2214-109x(21)00485-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 09/05/2021] [Accepted: 10/01/2021] [Indexed: 12/19/2022] Open
Abstract
Background Geoeconomic variations in epidemiology, the practice of ventilation, and outcome in invasively ventilated intensive care unit (ICU) patients without acute respiratory distress syndrome (ARDS) remain unexplored. In this analysis we aim to address these gaps using individual patient data of four large observational studies. Methods In this pooled analysis we harmonised individual patient data from the ERICC, LUNG SAFE, PRoVENT, and PRoVENT-iMiC prospective observational studies, which were conducted from June, 2011, to December, 2018, in 534 ICUs in 54 countries. We used the 2016 World Bank classification to define two geoeconomic regions: middle-income countries (MICs) and high-income countries (HICs). ARDS was defined according to the Berlin criteria. Descriptive statistics were used to compare patients in MICs versus HICs. The primary outcome was the use of low tidal volume ventilation (LTVV) for the first 3 days of mechanical ventilation. Secondary outcomes were key ventilation parameters (tidal volume size, positive end-expiratory pressure, fraction of inspired oxygen, peak pressure, plateau pressure, driving pressure, and respiratory rate), patient characteristics, the risk for and actual development of acute respiratory distress syndrome after the first day of ventilation, duration of ventilation, ICU length of stay, and ICU mortality. Findings Of the 7608 patients included in the original studies, this analysis included 3852 patients without ARDS, of whom 2345 were from MICs and 1507 were from HICs. Patients in MICs were younger, shorter and with a slightly lower body-mass index, more often had diabetes and active cancer, but less often chronic obstructive pulmonary disease and heart failure than patients from HICs. Sequential organ failure assessment scores were similar in MICs and HICs. Use of LTVV in MICs and HICs was comparable (42·4% vs 44·2%; absolute difference –1·69 [–9·58 to 6·11] p=0·67; data available in 3174 [82%] of 3852 patients). The median applied positive end expiratory pressure was lower in MICs than in HICs (5 [IQR 5–8] vs 6 [5–8] cm H2O; p=0·0011). ICU mortality was higher in MICs than in HICs (30·5% vs 19·9%; p=0·0004; adjusted effect 16·41% [95% CI 9·52–23·52]; p<0·0001) and was inversely associated with gross domestic product (adjusted odds ratio for a US$10 000 increase per capita 0·80 [95% CI 0·75–0·86]; p<0·0001). Interpretation Despite similar disease severity and ventilation management, ICU mortality in patients without ARDS is higher in MICs than in HICs, with a strong association with country-level economic status. Funding No funding.
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Tao L, Moreno‐Smith M, Ibarra‐García‐Padilla R, Milazzo G, Drolet NA, Hernandez BE, Oh YS, Patel I, Kim JJ, Zorman B, Patel T, Kamal AHM, Zhao Y, Hicks J, Vasudevan SA, Putluri N, Coarfa C, Sumazin P, Perini G, Parchem RJ, Uribe RA, Barbieri E. CHAF1A Blocks Neuronal Differentiation and Promotes Neuroblastoma Oncogenesis via Metabolic Reprogramming. Adv Sci (Weinh) 2021; 8:e2005047. [PMID: 34365742 PMCID: PMC8498874 DOI: 10.1002/advs.202005047] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Revised: 06/04/2021] [Indexed: 05/28/2023]
Abstract
Neuroblastoma (NB) arises from oncogenic disruption of neural crest (NC) differentiation. Treatment with retinoic acid (RA) to induce differentiation has improved survival in some NB patients, but not all patients respond, and most NBs eventually develop resistance to RA. Loss of the chromatin modifier chromatin assembly factor 1 subunit p150 (CHAF1A) promotes NB cell differentiation; however, the mechanism by which CHAF1A drives NB oncogenesis has remained unexplored. This study shows that CHAF1A gain-of-function supports cell malignancy, blocks neuronal differentiation in three models (zebrafish NC, human NC, and human NB), and promotes NB oncogenesis. Mechanistically, CHAF1A upregulates polyamine metabolism, which blocks neuronal differentiation and promotes cell cycle progression. Targeting polyamine synthesis promotes NB differentiation and enhances the anti-tumor activity of RA. The authors' results provide insight into the mechanisms that drive NB oncogenesis and suggest a rapidly translatable therapeutic approach (DFMO plus RA) to enhance the clinical efficacy of differentiation therapy in NB patients.
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Erdem H, Hargreaves S, Ankarali H, Caskurlu H, Ceviker SA, Bahar-Kacmaz A, Meric-Koc M, Altindis M, Yildiz-Kirazaldi Y, Kizilates F, Alsalman J, Cag Y, Kamal AHM, Dokmetas I, Dindar-Demiray EK, Shehata GA, Hasman H, Sadykova A, Llopis F, Ramosaco E, Logar M, Alay H, Kesmez-Can F, Ruch Y, Bulut D, Makek MJ, Marino A, Mahboob A, El-Kholy A, Abdallah D, Sefa-Sayar M, Karaali R, Aslan S, Dar RE, Abdalla E, Monzón-Camps H, Baljić R, Mgdalena DI, Naghili B, Abbas Dafalla ME, Alwashmi ASS, Carmen CR, Ramirez-Estrada S, Wojewodzka-Zelezniakowicz M, Akyildiz O, Zajkowska J, El-Sokkary R, Pandya N, Amer F, Alavi-Darazam I, Grgić S, Wegdan AA, El-Kholy J, Bulut-Avsar C, Kulzhanova S, Tasbakan M, Kumari HP, Dirani N, Koganti K, Konkayev AK, Petrov MM, Cascio A, Liskova A, Del Vecchio RF, Lambertenghi L, Mladenov N, Oncu S, Rello J. Managing adult patients with infectious diseases in emergency departments: international ID-IRI study. J Chemother 2021; 33:302-318. [PMID: 33734040 DOI: 10.1080/1120009x.2020.1863696] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We aimed to explore factors for optimizing antimicrobial treatment in emergency departments. A single-day point prevalence survey was conducted on January 18, 2020, in 53 referral/tertiary hospitals in 22 countries. 1957 (17%) of 11557 patients presenting to EDs had infections. The mean qSOFA score was 0.37 ± 0.74. Sepsis (qSOFA ≥ 2) was recorded in 218 (11.1%) patients. The mean qSOFA score was significantly higher in low-middle (1.48 ± 0.963) compared to upper-middle (0.17 ± 0.482) and high-income (0.36 ± 0.714) countries (P < 0.001). Eight (3.7%) patients with sepsis were treated as outpatients. The most common diagnoses were upper-respiratory (n = 877, 43.3%), lower-respiratory (n = 316, 16.1%), and lower-urinary (n = 201, 10.3%) infections. 1085 (55.4%) patients received antibiotics. The most-commonly used antibiotics were beta-lactam (BL) and BL inhibitors (n = 307, 15.7%), third-generation cephalosporins (n = 251, 12.8%), and quinolones (n = 204, 10.5%). Irrational antibiotic use and inappropriate hospitalization decisions seemed possible. Patients were more septic in countries with limited resources. Hence, a better organizational scheme is required.
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Affiliation(s)
| | - Sally Hargreaves
- Institute for Infection and Immunity, St George's University of London, London, UK
| | - Handan Ankarali
- Department of Biostatistics and Medical Informatics, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey
| | - Hulya Caskurlu
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Istanbul Medeniyet University, Istanbul, Turkey
| | - Sevil Alkan Ceviker
- Department of Infectious Diseases and Clinical Microbiology, Kutahya Evliya Celebi Research and Education Hospital, Kutahya, Turkey
| | - Asiye Bahar-Kacmaz
- Department of Infectious Diseases and Clinical Microbiology, Bezmialem Vakif University, Istanbul, Turkey
| | | | - Mustafa Altindis
- Department of Medical Microbiology, Faculty of Medicine, Sakarya University, Sakarya, Turkey
| | | | - Filiz Kizilates
- Department of Infectious Diseases and Clinical Microbiology, Antalya Training and Research Hospital, Health Sciences University, Antalya, Turkey
| | | | - Yasemin Cag
- Institute for Infection and Immunity, St George's University of London, London, UK
| | | | - Ilyas Dokmetas
- Department of Infectious Diseases and Clinical Microbiology, Sisli Etfal Training and Research Hospital, Istanbul, Turkey
| | | | | | - Hakan Hasman
- Emergency Department, Ankara Medicalpark Hospital, Ankara, Turkey
| | - Ainur Sadykova
- Department of Infectious and Tropical Diseases, City Clinical Infectious Hospital, Kazakh National Medical University, Almaty, Kazakhstan
| | - Ferran Llopis
- Emergency Department, Hospital Universitari de Bellvitge, Barcelona, Spain
| | - Ergys Ramosaco
- Infectious Diseases Clinic, University Hospital Center "Mother Teresa", Tirana, Albania
| | - Mateja Logar
- Department of Infectious Diseases, UMC Ljubljana, Ljubljana, Slovenia
| | - Handan Alay
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Fatma Kesmez-Can
- Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Ataturk University, Erzurum, Turkey
| | - Yvon Ruch
- Department of Infectious Diseases, Strasbourg University Hospital, Strasbourg, France
| | - Dilek Bulut
- Department of Infectious Diseases and Clinical Microbiology, Van Training and Research Hospital, Van, Turkey
| | | | - Andrea Marino
- Department of Infectious Diseases, ARNAS Garibaldi Hospital, University of Catania, Catania, Italy
| | - Amjad Mahboob
- Bacha Khan Medical Complex Swabi, Khyber Pakhtunkhwa, Pakistan
| | | | - Dirar Abdallah
- Department of Intensive Care, Prime Hospital, Dubai, United Arab Emirates
| | - Merve Sefa-Sayar
- Department of Infectious Diseases and Clinical Microbiology, Van Training and Research Hospital, Van, Turkey
| | - Ridvan Karaali
- Department of Infectious Diseases and Clinical Microbiology, Cerrahpasa School of Medicine, İstanbul Üniversitesi, Istanbul, Turkey
| | - Selda Aslan
- Department of Infectious Diseases and Clinical Microbiology, Cengiz Gokcek Maternity and Children's Hospital, Gaziantep, Turkey
| | - Razi Even Dar
- Department of Internal Medicine, Rambam Health Care Campus, Haifa, Israel
| | - Esam Abdalla
- Department of Anesthesia & ICU, Assiut University Hospital, Assiut, Egypt
| | - Helena Monzón-Camps
- Emergency Department and Infectious Diseases, Hospital Universitary Mútua Terrassa, Terrassa, Spain
| | - Rusmir Baljić
- Clinic for Infectious Diseases, Sarajevo, Bosnia and Herzegovina
| | - Dumitru Irina Mgdalena
- Clinical Infectious Diseases Hospital, Ovidius University of Constanta, Constanta, Romania
| | - Behrouz Naghili
- Department of Infectious Diseases, Imam Reza Hospital, Tabriz, Iran
| | | | - Ameen S S Alwashmi
- Medical Laboratories Department, College of Applied Medical Sciences, Qassim University, Saudi Arabia
| | - Cernat Roxana Carmen
- Clinical Hospital for Infectious Diseases, Ovidius University Constanta, Constanta, Romania
| | | | | | - Ozay Akyildiz
- Department of Infectious Diseases and Clinical Microbiology, Adana Acibadem Hospital, Adana, Turkey
| | | | - Rehab El-Sokkary
- Medical Microbiology and Immunology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | | | - Fatma Amer
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Zagazig University, Zagazig, Egypt
| | - Ilad Alavi-Darazam
- Department of Infectious Diseases and Tropical Medicine, Loghman Hakim Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Svjetlana Grgić
- Clinic for Infectious Disease, University Hospital Mostar, Mostar, Bosnia and Herzegovina
| | | | | | - Cansu Bulut-Avsar
- Department of Infectious Diseases and Clinical Microbiology, School of Medicine, Ege University, Izmir, Turkey
| | - Sholpan Kulzhanova
- Department of Infectious Diseases, Astana Medical University, Nur-Sultan, Kazakhstan
| | - Meltem Tasbakan
- Department of Infectious Diseases and Clinical Microbiology, School of Medicine, Ege University, Izmir, Turkey
| | | | | | | | - Aidos K Konkayev
- Institution of Trauma and Orthopaedics, Astana Medical University, Nur-Sultan, Kazakhstan
| | - Michael M Petrov
- Department of Microbiology and Immunology, Faculty of Pharmacy, Medical University, Plovdiv, Bulgaria
| | - Antonio Cascio
- Infectious and Tropical Diseases Section, Department PROMISE, University of Palermo, Palermo, Italy
| | | | | | | | | | - Serkan Oncu
- Department of Infectious Diseases and Clinical Microbiology, School of Medicine, Adnan Menderes University, Aydin, Turkey
| | - Jordi Rello
- Critical Care Department, Hospital Vall d'Hebron, Barcelona, Spain.,CIBERES, Madrid, Spain.,Universitat Autonma de Barcelona, Barcelona, Spain
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Pisani L, Algera AG, Serpa Neto A, Ahsan A, Beane A, Chittawatanarat K, Faiz A, Haniffa R, Hashemian SM, Hashmi M, Imad HA, Indraratna K, Iyer S, Kayastha G, Krishna B, Ling TL, Moosa H, Nadjm B, Pattnaik R, Sampath S, Thwaites L, Tun NN, Mohd Yunos N, Grasso S, Paulus F, Gama de Abreu M, Pelosi P, Day N, White N, Dondorp AM, Schultz MJ, For The PRoVENT-iMiC Investigators Moru And The Prove Network, Adhikari A, Akaraborworn O, Akhtar A, Alam AKMS, Ali SM, Arumoli J, Asaduzzaman M, Azauddin SNS, Banik D, Bhuiyan SR, Bhurayanontachai R, Chatmongkolchart S, Das S, Das SS, De Silva K, Dilhani YAH, Dissanayake L, Dongre A, Dorasamy D, Duong Bich T, Dutta ML, Edirisooriya M, Farooq A, Fernando M, Gunaratne A, Hamid T, Hanif S, Hasan MS, Hayat M, Hossain M, Hussain T, Idrees F, Jamaluddin MFH, Joseph S, Juntaping K, Kamal S, Karmaker P, Kasi CK, Kassim M, Khaskheli S, Khatoon SN, Khoundabi B, Kongpolprom N, Kudavidanage B, Lam Mihn Y, Malekmohammad M, Mat Nor MB, Mathanalagan S, Memon I, Mithraratne N, Mobasher M, Mondol MK, Mostafa Kamal AH, Nath RK, Navasakulpong A, Nazneed S, Nguyen Thi Thanh H, Nguyen Van K, Nooraei N, Othman Jailani MI, Pangeni R, Petnak T, Pilimatalawwe C, Pinto V, Piriyapatsom A, Pornsuriyasak P, Qadeer A, Raessi Estabragh R, Rahman Chowdhury MA, Ranatunge K, Rehman AU, Reza ST, Roy S, Roy P, Rungruanghiranya S, Salim M, Samaranayake U, Samarasinghe L, Sarkar SA, Shah J, Sigera C, Silachamroon U, Singhatas P, Sultana R, Surasit K, Taher SM, Tai LL, Tajarernmuang P, Tangsujaritvijit V, Taohid TM, Taqi A, Thilakasiri K, Thungtitigul P, Trongtrakul K, Vaas M, Voon CM, Vu Quoc D, Zarudin N. Epidemiological Characteristics, Ventilator Management, and Clinical Outcome in Patients Receiving Invasive Ventilation in Intensive Care Units from 10 Asian Middle-Income Countries (PRoVENT-iMiC): An International, Multicenter, Prospective Study. Am J Trop Med Hyg 2021; 104:1022-1033. [PMID: 33432906 PMCID: PMC7941813 DOI: 10.4269/ajtmh.20-1177] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/22/2020] [Indexed: 01/05/2023] Open
Abstract
Epidemiology, ventilator management, and outcome in patients receiving invasive ventilation in intensive care units (ICUs) in middle-income countries are largely unknown. PRactice of VENTilation in Middle-income Countries is an international multicenter 4-week observational study of invasively ventilated adult patients in 54 ICUs from 10 Asian countries conducted in 2017/18. Study outcomes included major ventilator settings (including tidal volume [V T] and positive end-expiratory pressure [PEEP]); the proportion of patients at risk for acute respiratory distress syndrome (ARDS), according to the lung injury prediction score (LIPS), or with ARDS; the incidence of pulmonary complications; and ICU mortality. In 1,315 patients included, median V T was similar in patients with LIPS < 4 and patients with LIPS ≥ 4, but lower in patients with ARDS (7.90 [6.8-8.9], 8.0 [6.8-9.2], and 7.0 [5.8-8.4] mL/kg Predicted body weight; P = 0.0001). Median PEEP was similar in patients with LIPS < 4 and LIPS ≥ 4, but higher in patients with ARDS (five [5-7], five [5-8], and 10 [5-12] cmH2O; P < 0.0001). The proportions of patients with LIPS ≥ 4 or with ARDS were 68% (95% CI: 66-71) and 7% (95% CI: 6-8), respectively. Pulmonary complications increased stepwise from patients with LIPS < 4 to patients with LIPS ≥ 4 and patients with ARDS (19%, 21%, and 38% respectively; P = 0.0002), with a similar trend in ICU mortality (17%, 34%, and 45% respectively; P < 0.0001). The capacity of the LIPS to predict development of ARDS was poor (ROC AUC of 0.62, 95% CI: 0.54-0.70). In Asian middle-income countries, where two-thirds of ventilated patients are at risk for ARDS according to the LIPS and pulmonary complications are frequent, setting of V T is globally in line with current recommendations.
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Affiliation(s)
- Luigi Pisani
- Mahidol-Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.,Department of Intensive Care, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Anna Geke Algera
- Department of Intensive Care, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Ary Serpa Neto
- Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil.,Department of Intensive Care, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Areef Ahsan
- Department of Critical Care, BIRDEM General Hospital, Dhaka, Bangladesh
| | - Abigail Beane
- Mahidol-Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | | | - Abul Faiz
- Dev Care Foundation, Dhaka, Bangladesh.,Mahidol-Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Rashan Haniffa
- Department of Critical Care Medicine, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | - Seyed MohammadReza Hashemian
- Chronic Respiratory Diseases Research Center (CRDRC), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Madiha Hashmi
- Department of Anaesthesiology, Aga Khan University, Karachi, Pakistan
| | - Hisham Ahmed Imad
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kanishka Indraratna
- Department of Anaesthesia and Intensive Care, Sri Jayewardenepura General Hospital, Colombo, Sri Lanka
| | - Shivakumar Iyer
- Department of Medicine, Bharati Vidyapeeth Medical College, Pune, India
| | - Gyan Kayastha
- Department of Internal Medicine, Patan Academy of Health Science, Kathmandu, Nepal
| | - Bhuvana Krishna
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, India
| | - Tai Li Ling
- Department of Anaesthesia and Intensive Care, Hospital Kuala Lumpur, Kuala Lumpur, Malaysia
| | - Hassan Moosa
- Department of Intensive Care, Indira Gandhi Memorial Hospital, Malé, Maldives
| | - Behzad Nadjm
- National Hospital for Tropical Diseases, Oxford University Clinical Research Unit, Hanoi, Vietnam
| | | | - Sriram Sampath
- Department of Critical Care Medicine, St. John's Medical College, Bangalore, India
| | - Louise Thwaites
- Hospital for Tropical Diseases, Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam
| | - Ni Ni Tun
- Medical Action Myanmar, Naypyidaw, Myanmar
| | - Nor'azim Mohd Yunos
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Johor Bahru, Malaysia
| | - Salvatore Grasso
- Department of Emergency and Organ Transplantation (DETO), University of Bari, Bari, Italy
| | - Frederique Paulus
- Department of Intensive Care, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, The Netherlands
| | - Marcelo Gama de Abreu
- Pulmonary Engineering Group, Department of Anaesthesiology and Intensive Care Medicine, University Hospital Carl Gustav Carus, Technical University Dresden, Dresden, Germany
| | - Paolo Pelosi
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Genoa, Italy.,San Martino Policlinico Hospital - IRCCS for Oncology, University of Genoa, Genoa, Italy
| | - Nick Day
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,Mahidol-Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Nick White
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,Mahidol-Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Arjen M Dondorp
- Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,Mahidol-Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Marcus J Schultz
- Laboratory of Experimental Intensive Care and Anaesthesiology (L·E·I·C·A) Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, The Netherlands.,Department of Intensive Care, Amsterdam University Medical Centers, Location Academic Medical Center, Amsterdam, The Netherlands.,Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.,Mahidol-Oxford Tropical Medicine Research Unit (MORU), Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
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17
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Shahinuzzaman ADA, Chakrabarty JK, Fang Z, Smith D, Kamal AHM, Chowdhury SM. Improved in-solution trypsin digestion method for methanol-chloroform precipitated cellular proteomics sample. J Sep Sci 2020; 43:2125-2132. [PMID: 32073721 DOI: 10.1002/jssc.201901273] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [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: 12/12/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 01/08/2023]
Abstract
Methanol-chloroform based protein precipitation is an essential step in many liquid chromatography-tandem mass spectrometry-based cellular proteomics applications. However, re-solubilization of the total protein precipitate is difficult using regular in-solution digestion protocol. Sodium deoxycholate is reported as an efficient surfactant for re-solubilization of membrane fractions. In this study, we demonstrated an application combining methanol-chloroform based protein precipitations and deoxycholic acid assisted re-solubilization of pellets to evaluate the improvement of protein identifications in mass spectrometry-based bottom-up proteomics. We evaluated the modified method using an equal amount of Raw 264.7 mouse macrophage cell lysate. Detailed in-solution trypsin digestion studies were presented on methanol-chloroform precipitated samples with or without deoxycholic acid treatments and compared with popular sample digestion methods. A mass spectrometric analysis confirmed an 82% increase in protein identification in deoxycholic acid-treated samples compared to other established methods. Furthermore, liquid chromatography-tandem mass spectrometry analysis of an equal amount of proteins from methanol-chloroform precipitated, and methanol-chloroform/deoxycholic acid-treated macrophage cell lysate showed a 14% increase and 27% unique protein identifications. We believe this improved digestion method could be a complementary or alternative method for mammalian cell sample preparations where sodium dodecyl sulfate based lysis buffer is frequently used.
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Affiliation(s)
- A D A Shahinuzzaman
- Department of Chemistry and Biochemistry, University of Texas, Arlington, Texas, USA
| | - Jayanta K Chakrabarty
- Department of Chemistry and Biochemistry, University of Texas, Arlington, Texas, USA
| | - Zixiang Fang
- Department of Chemistry and Biochemistry, University of Texas, Arlington, Texas, USA
| | - David Smith
- Department of Chemistry and Biochemistry, University of Texas, Arlington, Texas, USA
| | | | - Saiful M Chowdhury
- Department of Chemistry and Biochemistry, University of Texas, Arlington, Texas, USA
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18
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Abstract
Macrophages play a critical role in innate immunity through Toll-like receptor (TLR) signaling. Lipopolysaccharides (LPS) are a ligand of microbial origin that can trigger cell signaling in macrophages through TLRs and production of pro-inflammatory cytokines. Statin, a hypercholesterolemia drug, on the contrary, can reduce inflammatory cytokine production, and inflammation at large. Discovery-based quantitative proteomics is a useful method for unraveling complex protein networks and inter-protein interactions. Here, we describe protocols for studying the inflammatory proteomics network in RAW 264.7 cells (a model murine macrophage cell line) with the singular or sequential treatment of LPS and statin. We provide detailed protocols, including a quantitative proteomic analysis by mass spectrometry data, a protein network analysis by bioinformatics, and a validation of target through biochemical methods (e.g., immunocytochemistry, immunoblotting, gene silencing, and real-time PCR).
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Affiliation(s)
- Jayanta K Chakrabarty
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Abu Hena Mostafa Kamal
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - A D A Shahinuzzaman
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Saiful M Chowdhury
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA.
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Kamal AHM, Aloor JJ, Fessler MB, Chowdhury SM. Cross-linking Proteomics Indicates Effects of Simvastatin on the TLR2 Interactome and Reveals ACTR1A as a Novel Regulator of the TLR2 Signal Cascade. Mol Cell Proteomics 2019; 18:1732-1744. [PMID: 31221720 PMCID: PMC6731082 DOI: 10.1074/mcp.ra119.001377] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2019] [Revised: 05/25/2019] [Indexed: 01/23/2023] Open
Abstract
Toll-like receptor 2 (TLR2) is a pattern recognition receptor that, upon ligation by microbial molecules, interacts with other proteins to initiate pro-inflammatory responses by the cell. Statins (hydroxymethylglutaryl coenzyme A reductase inhibitors), drugs widely prescribed to reduce hypercholesterolemia, are reported to have both pro- and anti-inflammatory effects upon cells. Some of these responses are presumed to be driven by effects on signaling proteins at the plasma membrane, but the underlying mechanisms remain obscure. We reasoned that profiling the effect of statins on the repertoire of TLR2-interacting proteins might provide novel insights into the mechanisms by which statins impact inflammation. In order to study the TLR2 interactome, we designed a coimmunoprecipitation (IP)-based cross-linking proteomics study. A hemagglutinin (HA)-tagged-TLR2 transfected HEK293 cell line was used to precipitate the TLR2 interactome upon cell exposure to the TLR2 agonist Pam3CSK4 and simvastatin, singly and in combination. To stabilize protein interactors, we used two different chemical cross-linkers with different spacer chain lengths. Proteomic analysis revealed important combinatorial effects of simvastatin and Pam3CSK4 on the TLR2 interactome. After stringent data filtering, we identified alpha-centractin (ACTR1A), an actin-related protein and subunit of the dynactin complex, as a potential interactor of TLR2. The interaction was validated using biochemical methods. RNA interference studies revealed an important role for ACTR1A in induction of pro-inflammatory cytokines. Taken together, we report that statins remodel the TLR2 interactome, and we identify ACTR1A, a part of the dynactin complex, as a novel regulator of TLR2-mediated immune signaling pathways.
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Affiliation(s)
- Abu Hena Mostafa Kamal
- ‡Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas 76019
| | - Jim J Aloor
- §Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - Michael B Fessler
- §Immunity, Inflammation and Disease Laboratory, National Institute of Environmental Health Sciences, National Institutes of Health, Research Triangle Park, NC 27709
| | - Saiful M Chowdhury
- ‡Department of Chemistry and Biochemistry, University of Texas at Arlington, Texas 76019.
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20
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Perry BW, Andrew AL, Mostafa Kamal AH, Card DC, Schield DR, Pasquesi GIM, Pellegrino MW, Mackessy SP, Chowdhury SM, Secor SM, Castoe TA. Multi-species comparisons of snakes identify coordinated signalling networks underlying post-feeding intestinal regeneration. Proc Biol Sci 2019; 286:20190910. [PMID: 31288694 DOI: 10.1098/rspb.2019.0910] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Several snake species that feed infrequently in nature have evolved the ability to massively upregulate intestinal form and function with each meal. While fasting, these snakes downregulate intestinal form and function, and upon feeding restore intestinal structure and function through major increases in cell growth and proliferation, metabolism and upregulation of digestive function. Previous studies have identified changes in gene expression that underlie this regenerative growth of the python intestine, but the unique features that differentiate this extreme regenerative growth from non-regenerative post-feeding responses exhibited by snakes that feed more frequently remain unclear. Here, we leveraged variation in regenerative capacity across three snake species-two distantly related lineages ( Crotalus and Python) that experience regenerative growth, and one ( Nerodia) that does not-to infer molecular mechanisms underlying intestinal regeneration using transcriptomic and proteomic approaches. Using a comparative approach, we identify a suite of growth, stress response and DNA damage response signalling pathways with inferred activity specifically in regenerating species, and propose a hypothesis model of interactivity between these pathways that may drive regenerative intestinal growth in snakes.
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Affiliation(s)
- Blair W Perry
- 1 Department of Biology, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
| | - Audra L Andrew
- 1 Department of Biology, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
| | - Abu Hena Mostafa Kamal
- 2 Department of Chemistry and Biochemistry, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
| | - Daren C Card
- 1 Department of Biology, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
| | - Drew R Schield
- 1 Department of Biology, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
| | - Giulia I M Pasquesi
- 1 Department of Biology, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
| | - Mark W Pellegrino
- 1 Department of Biology, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
| | - Stephen P Mackessy
- 3 School of Biological Sciences, University of Northern Colorado , 501 20th Street, Greeley, CO 80639 , USA
| | - Saiful M Chowdhury
- 2 Department of Chemistry and Biochemistry, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
| | - Stephen M Secor
- 4 Department of Biological Sciences, University of Alabama , Box 870344, Tuscaloosa, AL 35487 , USA
| | - Todd A Castoe
- 1 Department of Biology, The University of Texas Arlington , 501 South Nedderman Drive, Arlington, TX 76019 , USA
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21
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Ricci CA, Kamal AHM, Chakrabarty JK, Fuess LE, Mann WT, Jinks LR, Brinkhuis V, Chowdhury SM, Mydlarz LD. Proteomic Investigation of a Diseased Gorgonian Coral Indicates Disruption of Essential Cell Function and Investment in Inflammatory and Other Immune Processes. Integr Comp Biol 2019; 59:830-844. [DOI: 10.1093/icb/icz107] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Abstract
As scleractinian coral cover declines in the face of increased frequency in disease outbreaks, future reefs may become dominated by octocorals. Understanding octocoral disease responses and consequences is therefore necessary if we are to gain insight into the future of ecosystem services provided by coral reefs. In Florida, populations of the octocoral Eunicea calyculata infected with Eunicea black disease (EBD) were observed in the field in the fall of 2011. This disease was recognized by a stark, black pigmentation caused by heavy melanization. Histological preparations of E. calyculata infected with EBD demonstrated granular amoebocyte (GA) mobilization, melanin granules in much of the GA population, and the presence of fungal hyphae penetrating coral tissue. Previous transcriptomic analysis also identified immune trade-offs evidenced by increased immune investment at the expense of growth. Our investigation utilized proteogenomic techniques to reveal decreased investment in general cell signaling while increasing energy production for immune responses. Inflammation was also prominent in diseased E. calyculata and sheds light on factors driving the extreme phenotype observed with EBD. With disease outbreaks continuing to increase in frequency, our results highlight new targets within the cnidarian immune system and provide a framework for understanding transcriptomics in the context of an organismal disease phenotype and its protein expression.
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Affiliation(s)
- Contessa A Ricci
- Department of Biology, University of Texas at Arlington, Arlington, 501 S Nedderman Dr., TX 76010, USA
| | - Abu Hena Mostafa Kamal
- Department of Chemistry and Biochemistry, University of Texas at Arlington, 700 Planetarium Pl, Arlington, TX 76010, USA
| | - Jayanta Kishor Chakrabarty
- Department of Chemistry and Biochemistry, University of Texas at Arlington, 700 Planetarium Pl, Arlington, TX 76010, USA
| | - Lauren E Fuess
- Department of Ecology and Evolutionary Biology University of Connecticut, Storrs, CT 06269, USA
| | - Whitney T Mann
- Department of Biology, University of Texas at Arlington, Arlington, 501 S Nedderman Dr., TX 76010, USA
| | - Lea R Jinks
- Department of Biology, University of Texas at Arlington, Arlington, 501 S Nedderman Dr., TX 76010, USA
| | - Vanessa Brinkhuis
- Washington State Department of Ecology—Central Regional Office, 1250 Alder Street, Union Gap, WA 98903, USA
| | - Saiful M Chowdhury
- Department of Chemistry and Biochemistry, University of Texas at Arlington, 700 Planetarium Pl, Arlington, TX 76010, USA
| | - Laura D Mydlarz
- Department of Biology, University of Texas at Arlington, Arlington, 501 S Nedderman Dr., TX 76010, USA
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22
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Abstract
Evidence of a bidirectional relationship between depression and diabetes has recently been documented in large prospective studies. Comorbid depression is associated with an increased risk of poor glycemic control, diabetes complications and mortality. Moreover, incident diabetes has also been found to be risk factors for subsequent development of depressive episodes. Furthermore, in a recent systematic review, depression is associated with the subsequent development of T2DM by up to 37% as it causes central obesity, increased release of circulating corticosteroid hormone (which antagonizes the action of insulin) and insulin resistance that is a more common etiological pathway for the development of T2DM. Subsequently, the presence of depression with diabetes has a severe impact for self-care management and long term outcome which includes long term disturbance of mood. Therefore, the purpose of this review is to explain the bidirectional relationship between diabetes and depression and explore the management options that are advocated to enhance the Diabetes self-management education and improve the quality of life for diabetic patients with depression
Chatt Maa Shi Hosp Med Coll J; Vol.17 (1); Jan 2018; Page 50-54
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23
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Roy SK, Kwon SJ, Cho SW, Kamal AHM, Kim SW, Sarker K, Oh MW, Lee MS, Chung KY, Xin Z, Woo SH. Leaf proteome characterization in the context of physiological and morphological changes in response to copper stress in sorghum. Biometals 2016; 29:495-513. [PMID: 27067443 DOI: 10.1007/s10534-016-9932-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [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: 01/15/2016] [Accepted: 04/03/2016] [Indexed: 02/03/2023]
Abstract
Copper (Cu) is an essential micronutrient required for normal growth and development of plants; however, at elevated concentrations in soil, copper is also generally considered to be one of the most toxic metals to plant cells due to its inhibitory effects against many physiological and biochemical processes. In spite of its potential physiological and economical significance, molecular mechanisms under Cu stress has so far been grossly overlooked in sorghum. To explore the molecular alterations that occur in response to copper stress, the present study was performed in ten-day-old Cu-exposed leaves of sorghum seedlings. The growth characteristics were markedly inhibited, and ionic alterations were prominently observed in the leaves when the seedlings were exposed to different concentrations (0, 100, and 150 µM) of CuSO4. Using two-dimensional gels with silver staining, 643 differentially expressed protein spots (≥1.5-fold) were identified as either significantly increased or reduced in abundance. Of these spots, a total of 24 protein spots (≥1.5-fold) from Cu-exposed sorghum leaves were successfully analyzed by MALDI-TOF-TOF mass spectrometry. Of the 24 differentially expressed proteins from Cu-exposed sorghum leaves, 13 proteins were up-regulated, and 11 proteins were down-regulated. The abundance of most identified protein species, which function in carbohydrate metabolism, stress defense and protein translation, was significantly enhanced, while that of another protein species involved in energy metabolism, photosynthesis and growth and development were severely reduced. The resulting differences in protein expression patterns together with related morpho-physiological processes suggested that these results could help to elucidate plant adaptation to Cu stress and provide insights into the molecular mechanisms of Cu responses in C4 plants.
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Affiliation(s)
- Swapan Kumar Roy
- Department of Crop Science, Chungbuk National University, 410 Seongbong-ro, Heungdeok-gu, Cheongju, Chungbuk, 361-763, Korea
| | - Soo Jeong Kwon
- Department of Crop Science, Chungbuk National University, 410 Seongbong-ro, Heungdeok-gu, Cheongju, Chungbuk, 361-763, Korea
| | - Seong-Woo Cho
- Division of Crop Breeding Research, National Institute of Crop Science, Rural Development Administration, Wanju-Gun, Korea
| | - Abu Hena Mostafa Kamal
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
| | - Sang-Woo Kim
- Department of Crop Science, Chungbuk National University, 410 Seongbong-ro, Heungdeok-gu, Cheongju, Chungbuk, 361-763, Korea
| | - Kabita Sarker
- Department of Crop Science, Chungbuk National University, 410 Seongbong-ro, Heungdeok-gu, Cheongju, Chungbuk, 361-763, Korea
| | - Myeong-Won Oh
- National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, Jeonju, Korea
| | - Moon-Soon Lee
- Department of Industrial Plant Science & Technology, Chungbuk National University, Cheong-ju, Korea
| | - Keun-Yook Chung
- Department of Environmental & Biological Chemistry, Chungbuk National University, Cheong-ju, Republic of Korea
| | - Zhanguo Xin
- Plant Stress and Germplasm Development Unit, USDA-ARS, 3810 4th Street, Lubbock, TX, USA
| | - Sun-Hee Woo
- Department of Crop Science, Chungbuk National University, 410 Seongbong-ro, Heungdeok-gu, Cheongju, Chungbuk, 361-763, Korea.
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24
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Roy SK, Cho SW, Kwon SJ, Kamal AHM, Kim SW, Oh MW, Lee MS, Chung KY, Xin Z, Woo SH. Morpho-Physiological and Proteome Level Responses to Cadmium Stress in Sorghum. PLoS One 2016; 11:e0150431. [PMID: 26919231 PMCID: PMC4769174 DOI: 10.1371/journal.pone.0150431] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2015] [Accepted: 02/12/2016] [Indexed: 11/18/2022] Open
Abstract
Cadmium (Cd) stress may cause serious morphological and physiological abnormalities in addition to altering the proteome in plants. The present study was performed to explore Cd-induced morpho-physiological alterations and their potential associated mechanisms in Sorghum bicolor leaves at the protein level. Ten-day-old sorghum seedlings were exposed to different concentrations (0, 100, and 150 μM) of CdCl2, and different morpho-physiological responses were recorded. The effects of Cd exposure on protein expression patterns in S. bicolor were investigated using two-dimensional gel electrophoresis (2-DE) in samples derived from the leaves of both control and Cd-treated seedlings. The observed morphological changes revealed that the plants treated with Cd displayed dramatically altered shoot lengths, fresh weights and relative water content. In addition, the concentration of Cd was markedly increased by treatment with Cd, and the amount of Cd taken up by the shoots was significantly and directly correlated with the applied concentration of Cd. Using the 2-DE method, a total of 33 differentially expressed protein spots were analyzed using MALDI-TOF/TOF MS. Of these, treatment with Cd resulted in significant increases in 15 proteins and decreases in 18 proteins. Major changes were absorbed in the levels of proteins known to be involved in carbohydrate metabolism, transcriptional regulation, translation and stress responses. Proteomic results revealed that Cd stress had an inhibitory effect on carbon fixation, ATP production and the regulation of protein synthesis. Our study provides insights into the integrated molecular mechanisms involved in responses to Cd and the effects of Cd on the growth and physiological characteristics of sorghum seedlings. We have aimed to provide a reference describing the mechanisms involved in heavy metal damage to plants.
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Affiliation(s)
- Swapan Kumar Roy
- Department of Crop Science, Chungbuk National University, Cheong-ju, Korea
| | - Seong-Woo Cho
- Division of Rice Research, National Institute of Crop Science, Rural Development Administration, Suwon, Korea
| | - Soo Jeong Kwon
- Department of Crop Science, Chungbuk National University, Cheong-ju, Korea
| | - Abu Hena Mostafa Kamal
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas, United States of America
| | - Sang-Woo Kim
- Department of Crop Science, Chungbuk National University, Cheong-ju, Korea
| | - Myeong-Won Oh
- National Agrobiodiversity Center, National Academy of Agricultural Science, Rural Development Administration, Jeonju, Korea
| | - Moon-Soon Lee
- Department of Industrial Plant Science & Technology, Chungbuk National University, Cheong-ju, Korea
| | - Keun-Yook Chung
- Department of Environmental & Biological Chemistry, Chungbuk National University, Cheong-ju, Republic of Korea
| | - Zhanguo Xin
- Plant Stress and Germplasm Development Unit, USDA-ARS, 3810 4th Street, Lubbock, TX, United States of America
| | - Sun-Hee Woo
- Department of Crop Science, Chungbuk National University, Cheong-ju, Korea
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Kamal AHM, Komatsu S. Jasmonic acid induced protein response to biophoton emissions and flooding stress in soybean. J Proteomics 2016; 133:33-47. [PMID: 26655678 DOI: 10.1016/j.jprot.2015.12.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Revised: 11/21/2015] [Accepted: 12/03/2015] [Indexed: 01/02/2023]
Abstract
Biophoton emissions were elevated by the exogenous plant hormone application such as jasmonic (JA) and salicylic acid (SA). To reveal the molecular mechanisms underlying flooding stress responses in soybean treated with JA and SA, biophoton emissions from plants were quantified in combination with proteomic analyses. Furthermore, treatment with exogenous JA inhibited lateral root growth and markedly reduced root weight. Out of 649 proteins identified in the JA- and JA/SA-treated plants, 44 were unique to JA-treated plants, 403 were unique to JA/SA-treated plants, and 202 were shared between the groups. These proteins were involved in stress, signaling, degradation, glycolysis, fermentation, and hormone metabolism. The abundances of glutathione-S-transferase, alanine aminotransferase, and malate dehydrogenase were decreased; however, the activities of these enzymes were increased. In contrast, the abundance and activity of monodehydroascorbate reductase increased in the roots of plants treated with JA and SA under flooding stress. This suggests that the quantity of lateral roots, total root mass, and free radicals generated during oxidation and reduction reactions and reactive oxygen species scavenging largely contribute to biophoton emission. Furthermore, monodehydroascorbate reductase, which is involved in detoxification and controlling hydrogen peroxide levels, may protect plant cells against oxidative damage during flooding. BIOLOGICAL SIGNIFICANCE To understand the source of biophoton emission and molecular mechanism by the application of jasmonic and salicylic acid under flooding conditions in soybean plants, the label-free quantitative techniques were performed in roots. Root lengths and weights were significantly reduced by the effect of jasmonic and salicylic acid while it inhibited growth of the lateral roots in normal conditions using the jasmonic acid. Finally, identified proteins were functionally annotated by MAPMAN software application; that were assigned to different functional categories, such as stress, signaling, protein, glycolysis, metabolism, cell wall, and cell organization. Consequently, this study offers to learn the photon emission in plants and to know the molecular mechanism under flooding stress in soybean.
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Affiliation(s)
- Abu Hena Mostafa Kamal
- National Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba 305-8518, Japan
| | - Setsuko Komatsu
- National Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba 305-8518, Japan.
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Kamal AHM, Komatsu S. Proteins involved in biophoton emission and flooding-stress responses in soybean under light and dark conditions. Mol Biol Rep 2016; 43:73-89. [PMID: 26754663 DOI: 10.1007/s11033-015-3940-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 12/31/2015] [Indexed: 01/15/2023]
Abstract
To know the molecular systems basically flooding conditions in soybean, biophoton emission measurements and proteomic analyses were carried out for flooding-stressed roots under light and dark conditions. Photon emission was analyzed using a photon counter. Gel-free quantitative proteomics were performed to identify significant changes proteins using the nano LC-MS along with SIEVE software. Biophoton emissions were significantly increased in both light and dark conditions after flooding stress, but gradually decreased with continued flooding exposure compared to the control plants. Among the 120 significantly identified proteins in the roots of soybean plants, 73 and 19 proteins were decreased and increased in the light condition, respectively, and 4 and 24 proteins were increased and decreased, respectively, in the dark condition. The proteins were mainly functionally grouped into cell organization, protein degradation/synthesis, and glycolysis. The highly abundant lactate/malate dehydrogenase proteins were decreased in flooding-stressed roots exposed to light, whereas the lysine ketoglutarate reductase/saccharopine dehydrogenase bifunctional enzyme was increased in both light and dark conditions. Notably, however, specific enzyme assays revealed that the activities of these enzymes and biophoton emission were sharply increased after 3 days of flooding stress. This finding suggests that the source of biophoton emission in roots might involve the chemical excitation of electron or proton through enzymatic or non-enzymatic oxidation and reduction reactions. Moreover, the lysine ketoglutarate reductase/saccharopine dehydrogenase bifunctional enzyme may play important roles in responses in flooding stress of soybean under the light condition and as a contributing factor to biophoton emission.
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Affiliation(s)
- Abu Hena Mostafa Kamal
- National Institute of Crop Science, National Agriculture and Food Research Organization, Kannondai 2-1-18, Tsukuba, 305-8518, Japan
| | - Setsuko Komatsu
- National Institute of Crop Science, National Agriculture and Food Research Organization, Kannondai 2-1-18, Tsukuba, 305-8518, Japan.
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Kamal AHM, Komatsu S. Involvement of Reactive Oxygen Species and Mitochondrial Proteins in Biophoton Emission in Roots of Soybean Plants under Flooding Stress. J Proteome Res 2015; 14:2219-36. [PMID: 25806999 DOI: 10.1021/acs.jproteome.5b00007] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
To understand the mechanism of biophoton emission, ROS and mitochondrial proteins were analyzed in soybean plants under flooding stress. Enzyme activity and biophoton emission were increased in the flooding stress samples when assayed in reaction mixes specific for antioxidant enzymes and reactive oxygen species; although the level of the hydroxyl radicals was increased at day 4 (2 days of flooding) compared to nonflooding at day 4, the emission of biophotons did not change. Mitochondria were isolated and purified from the roots of soybean plants grown under flooding stress by using a Percoll gradient, and proteins were analyzed by a gel-free proteomic technique. Out of the 98 mitochondrial proteins that significantly changed abundance under flooding stress, 47 increased and 51 decreased at day 4. The mitochondrial enzymes fumarase, glutathione-S-transferase, and aldehyde dehydrogenase increased at day 4 in protein abundance and enzyme activity. Enzyme activity and biophoton emission decreased at day 4 by the assay of lipoxygenase under stress. Aconitase, acyl CoA oxidase, succinate dehydrogenase, and NADH ubiquinone dehydrogenase were up-regulated at the transcription level. These results indicate that oxidation and peroxide scavenging might lead to biophoton emission and oxidative damage in the roots of soybean plants under flooding stress.
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Affiliation(s)
- Abu Hena Mostafa Kamal
- National Institute of Crop Science, National Agriculture and Food Research Organization, Kannondai 2-1-18, Tsukuba 305-8518, Japan
| | - Setsuko Komatsu
- National Institute of Crop Science, National Agriculture and Food Research Organization, Kannondai 2-1-18, Tsukuba 305-8518, Japan
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Sultana ANW, Begum N, Abdullah AS, Khan MAH, Rahman MR, Kamal AHM, Mollah FH. Lipid Profile and Atherogenic Index of Plasma (AIP) in Vegetarians. J Enam Med Col 2015. [DOI: 10.3329/jemc.v5i1.21494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Background: Diet deficient in fresh fruits and vegetables are associated with an increased risk of coronary diseases. Low levels of vitamin C, vitamin E and other antioxidants may enhance the production of oxidized LDL and are important independent risk factors for coronary disease. Objective: To make a comparative evaluation of lipid profile and atherogenic index of plasma (AIP) between vegetarians and nonvegetarians. Materials and Methods: This case-control study was carried out in the Department of Biochemistry of Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka between July 2011 to June 2012. Vegetarian and nonvegetarian subjects of male sex were the study population. Vegetarians were considered as cases while nonvegetarians as controls. After proper ethical consideration a total of 30 vegetarians and 40 nonvegetarians were consecutively included in the study based on predefined inclusion and exclusion criteria. Laboratory investigations were done in the Department of Biochemistry, BSMMU, Dhaka. Results: The vegetarians had significantly lower total cholesterol and LDLcholesterol than the nonvegetarians (p=0.000 and p=0.000 respectively). Serum HDL cholesterol was also lower among the vegetarians (p=0.002) and triglycerides were almost identical in both the groups (p=0.272). Conclusion: The study reveals lower level of total cholesterol, LDLcholesterol and HDL-cholesterol in vegetarians. No difference regarding triglycerides and AIP was found between the groups. So, the findings of this study do not indicate any superiority of vegetarian diet in control and prevention of cardiac diseases. DOI: http://dx.doi.org/10.3329/jemc.v5i1.21494 J Enam Med Col 2015; 5(1): 30-33
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Kamal AHM, Rashid H, Sakata K, Komatsu S. Gel-free quantitative proteomic approach to identify cotyledon proteins in soybean under flooding stress. J Proteomics 2015; 112:1-13. [PMID: 25201076 DOI: 10.1016/j.jprot.2014.08.014] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2014] [Revised: 08/22/2014] [Accepted: 08/27/2014] [Indexed: 01/10/2023]
Abstract
Flooding stress causes growth inhibition and ultimately death in most crop species by limiting of energy production. To better understand plant responses to flooding stress, here, flooding-responsive proteins in the cotyledons of soybean were identified using a gel-free quantitative proteomic approach. One hundred forty six proteins were commonly observed in both control and flooding-stressed plants, and 19 were identified under only flooding stress conditions. The main functional categories were protein and development-related proteins. Protein-protein interaction analysis revealed that zincin-like metalloprotease and cupin family proteins were found to highly interact with other proteins under flooding stress. Plant stearoyl acyl-carrier protein, ascorbate peroxidase 1, and secretion-associated RAS superfamily 2 were down-regulated, whereas ferretin 1 was up-regulated at the transcription level. Notably, the levels of all corresponding proteins were decreased, indicating that mRNA translation to proteins is impaired under flooding conditions. Decreased levels of ferritin may lead to a strong deregulation of the expression of several metal transporter genes and over-accumulation of iron, which led to increased levels of reactive oxygen species, resulting to detoxification of these reactive species. Taken together, these results suggest that ferritin might have an essential role in protecting plant cells against oxidative damage under flooding conditions. BIOLOGICAL SIGNIFICANCE This study reported the comparative proteomic analysis of cotyledon of soybean plants between non-flooding and flooding conditions using the gel-free quantitative techniques. Mass spectrometry analysis of the proteins from cotyledon resulted in the identification of a total of 165 proteins under flooding stress. These proteins were assigned to different functional categories, such as protein, development, stress, redox, and glycolysis. Therefore, this study provides not only the comparative proteomic analysis but also the molecular mechanism underlying the flooding responsive protein functions in the cotyledon.
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Affiliation(s)
| | - Hamid Rashid
- Mohammad Ali Jinnah University, Islamabad, Pakistan
| | - Katsumi Sakata
- Maebashi Institute of Technology, Maebashi 371-0816, Japan
| | - Setsuko Komatsu
- National Institute of Crop Science, NARO, Tsukuba 305-8518, Japan.
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Komatsu S, Kamal AHM, Makino T, Hossain Z. Ultraweak photon emission and proteomics analyses in soybean under abiotic stress. Biochim Biophys Acta 2014; 1844:1208-18. [PMID: 24726903 DOI: 10.1016/j.bbapap.2014.04.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 03/30/2014] [Accepted: 04/01/2014] [Indexed: 10/25/2022]
Abstract
Biophotons are ultraweak photon emissions that are closely related to various biological activities and processes. In mammals, biophoton emissions originate from oxidative bursts in immunocytes during immunological responses. Biophotons emitted from plant organs provide novel information about the physiological state of plant under in vivo condition. In this review, the principles and recent advances in the measurement of biophoton emissions in plants are described. Furthermore, examples of biophoton emission and proteomics in soybean under abiotic stress are reviewed and discussed. Finally, this review suggests that the application of proteomics should provide a better interpretation of plant response to biophoton emission and allow the identification of genes that will allow the screening of crops able to produce maximal yields, even in stressful environments.
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Affiliation(s)
- Setsuko Komatsu
- National Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba 305-8518, Japan.
| | - Abu Hena Mostafa Kamal
- National Institute of Crop Science, National Agriculture and Food Research Organization, Tsukuba 305-8518, Japan
| | - Takahiro Makino
- Graduate School for the Creation of New Photonics Industries, Hamamatsu 431-1202, Japan
| | - Zahed Hossain
- Plant Stress Biology Lab, Department of Botany, West Bengal State University, Kolkata 700126, West Bengal, India
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Kamal AHM, Islam MM. Facilitating and securing offline e-medicine service through image steganography. Healthc Technol Lett 2014; 1:74-9. [PMID: 26609382 DOI: 10.1049/htl.2013.0026] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 11/04/2013] [Revised: 05/03/2014] [Accepted: 05/06/2014] [Indexed: 11/20/2022] Open
Abstract
E-medicine is a process to provide health care services to people using the Internet or any networking technology. In this Letter, a new idea is proposed to model the physical structure of the e-medicine system to better provide offline health care services. Smart cards are used to authenticate the user singly. A very unique technique is also suggested to verify the card owner's identity and to embed secret data to the card while providing patients' reports either at booths or at the e-medicine server system. The simulation results of card authentication and embedding procedure justify the proposed implementation.
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Affiliation(s)
- A H M Kamal
- Department of Computer Science and Engineering , Jatiya Kabi Kazi Nazrul Islam University , Mymensingh , Bangladesh ; Department of Computer Science and Engineering , Bangladesh University of Engineering and Technology , Bangladesh
| | - M Mahfuzul Islam
- Department of Computer Science and Engineering , Bangladesh University of Engineering and Technology , Bangladesh
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Yu J, Roy SK, Kamal AHM, Cho K, Kwon SJ, Cho SW, So YS, Holland JB, Woo SH. Protein Profiling Reveals Novel Proteins in Pollen and Pistil of W22 (ga1; Ga1) in Maize. Proteomes 2014; 2:258-271. [PMID: 28250381 PMCID: PMC5302736 DOI: 10.3390/proteomes2020258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [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: 02/08/2014] [Revised: 04/08/2014] [Accepted: 04/21/2014] [Indexed: 12/31/2022] Open
Abstract
Gametophytic factors mediate pollen-pistil interactions in maize (Zea mays L.) and play active roles in limiting gene flow among maize populations and between maize and teosinte. This study was carried out to identify proteins and investigate the mechanism of gametophytic factors using protein analysis. W22 (ga1); which did not carry a gametophytic factor and W22 (Ga1), a near iso-genic line, were used for the proteome investigation. SDS-PAGE was executed to investigate proteins in the pollen and pistil of W22 (ga1) and W22 (Ga1). A total of 44 differentially expressed proteins were identified in the pollen and pistil on SDS-PAGE using LTQ-FTICR MS. Among the 44 proteins, a total of 24 proteins were identified in the pollen of W22 (ga1) and W22 (Ga1) whereas 20 differentially expressed proteins were identified from the pistil of W22 (ga1) and W22 (Ga1). However, in pollen, 2 proteins were identified only in the W22 (ga1) and 12 proteins only in the W22 (Ga1) whereas 10 proteins were confirmed from the both of W22 (ga1) and W22 (Ga1). In contrary, 10 proteins were appeared only in the pistil of W22 (ga1) and 7 proteins from W22 (Ga1) while 3 proteins confirmed in the both of W22 (ga1) and W22 (Ga1). Moreover, the identified proteins were generally involved in hydrolase activity, nucleic acid binding and nucleotide binding. These results help to reveal the mechanism of gametophytic factors and provide a valuable clue for the pollen and pistil research in maize.
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Affiliation(s)
- Jin Yu
- Department of Crop Science, Chungbuk National University, Cheong-ju 361-763, Korea.
| | - Swapan Kumar Roy
- Department of Crop Science, Chungbuk National University, Cheong-ju 361-763, Korea.
| | | | - Kun Cho
- Division of Mass Spectrometry Research, Korea Basic Science Institute, Chungbuk 863-883, Korea.
| | - Soo-Jeong Kwon
- Department of Crop Science, Chungbuk National University, Cheong-ju 361-763, Korea.
| | - Seong-Woo Cho
- Lab of Molecular Breeding, Arid land Research Center, Tottori University, Tottori 680-8550, Japan.
| | - Yoon-Sup So
- Department of Crop Science, Chungbuk National University, Cheong-ju 361-763, Korea.
| | - James B Holland
- USDA-ARS Plant Science Research Unit, Department of Crop Science, Box 7620, North Carolina State University, Raleigh, NC 27695, USA.
| | - Sun Hee Woo
- Department of Crop Science, Chungbuk National University, Cheong-ju 361-763, Korea.
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Kamal AHM, Han BS, Choi JS, Cho K, Kim SY, Kim WK, Lee SC, Bae KH. Proteomic analysis of the effect of retinoic acids on the human breast cancer cell line MCF-7. Mol Biol Rep 2014; 41:3499-507. [DOI: 10.1007/s11033-014-3212-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Accepted: 01/27/2014] [Indexed: 02/02/2023]
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Kamal AHM, Kim WK, Cho K, Park A, Min JK, Han BS, Park SG, Lee SC, Bae KH. Investigation of adipocyte proteome during the differentiation of brown preadipocytes. J Proteomics 2013; 94:327-36. [PMID: 24129212 DOI: 10.1016/j.jprot.2013.10.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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: 06/03/2013] [Revised: 09/02/2013] [Accepted: 10/01/2013] [Indexed: 02/07/2023]
Abstract
UNLABELLED Brown adipocytes oxidize fatty acids to produce heat in response to cold or caloric overfeeding. The motivation and function of the development of brown fat may thus counteract obesity, though this remains uncertain. We investigated the brown adipocyte proteome by two-dimensional gel electrophoresis followed by mass spectrometry. Comparative analyses of proteins focused on total protein spots to filter differentially expressed proteins during the differentiation of mouse primary brown preadipocytes. A Western blot analysis was performed to verify the target proteins. The results indicated that 10 protein spots were differentially expressed with significant changes, including the three up-regulated proteins of prohibitin, hypoxanthine-guanine phosphoribosyltransferase, and enoyl-CoA hydratase protein; the 5 down-regulated proteins of triosephosphate isomerase, elongation factor 2, α-tropomyosin slow, endophilin-B1, and cofilin-1 (CFL1); and the two unequivocally expressed proteins of peroxiredoxin-1 and collagen α-1(i) chain precursor. We found that during brown adipogenesis, CFL1 has an inhibitory effect on brown adipocyte differentiation. The overexpression of CFL1 inhibited the brown fat deposition and repressed the brown marker genes UCP1, PRDM16, PGC-1α and PPARγ via actin dynamics and polymerization. These observations may be novel findings that bring new insight into the detailed mechanisms of brown adipogenesis and identify possible therapeutic targets for anti-obesity. BIOLOGICAL SIGNIFICANCE We use 2-DE to compare the proteomes of adipocytes during the brown adipogenesis of primary mouse preadipocytes. We identified 10 proteins that are differentially expressed. Among these, we found that the actin binding protein CFL1 inhibits the differentiation of brown preadipocytes. CFL1 overexpressing cells showed lower deposition of brown fat droplets, and the brown marker genes of UCP1, PRDM16, PGC-1α and PPARγ were decreased through actin dynamics and polymerization.
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Affiliation(s)
- Abu Hena Mostafa Kamal
- Research Center for Integrated Cellulomics, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon 305-806, Republic of Korea
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Woo SH, Kamal AHM, Park SM, Kwon SO, Park SU, Roy SK, Lee JY, Choi JS. Relative distribution of free amino acids in buckwheat. Food Sci Biotechnol 2013. [DOI: 10.1007/s10068-013-0129-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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Kamal AHM, Cho K, Choi JS, Bae KH, Komatsu S, Uozumi N, Woo SH. The wheat chloroplastic proteome. J Proteomics 2013; 93:326-42. [PMID: 23563086 DOI: 10.1016/j.jprot.2013.03.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 03/08/2013] [Accepted: 03/11/2013] [Indexed: 11/18/2022]
Abstract
UNLABELLED With the availability of plant genome sequencing, analysis of plant proteins with mass spectrometry has become promising and admired. Determining the proteome of a cell is still a challenging assignment, which is convoluted by proteome dynamics and convolution. Chloroplast is fastidious curiosity for plant biologists due to their intricate biochemical pathways for indispensable metabolite functions. In this review, an overview on proteomic studies conducted in wheat with a special focus on subcellular proteomics of chloroplast, salt and water stress. In recent years, we and other groups have attempted to understand the photosynthesis in wheat and abiotic stress under salt imposed and water deficit during vegetative stage. Those studies provide interesting results leading to better understanding of the photosynthesis and identifying the stress-responsive proteins. Indeed, recent studies aimed at resolving the photosynthesis pathway in wheat. Proteomic analysis combining two complementary approaches such as 2-DE and shotgun methods couple to high through put mass spectrometry (LTQ-FTICR and MALDI-TOF/TOF) in order to better understand the responsible proteins in photosynthesis and abiotic stress (salt and water) in wheat chloroplast will be focused. BIOLOGICAL SIGNIFICANCE In this review we discussed the identification of the most abundant protein in wheat chloroplast and stress-responsive under salt and water stress in chloroplast of wheat seedlings, thus providing the proteomic view of the events during the development of this seedling under stress conditions. Chloroplast is fastidious curiosity for plant biologists due to their intricate biochemical pathways for indispensable metabolite functions. An overview on proteomic studies conducted in wheat with a special focus on subcellular proteomics of chloroplast, salt and water stress. We have attempted to understand the photosynthesis in wheat and abiotic stress under salt imposed and water deficit during seedling stage. Those studies provide interesting results leading to a better understanding of the photosynthesis and identifying the stress-responsive proteins. In reality, our studies aspired at resolving the photosynthesis pathway in wheat. Proteomic analysis united two complementary approaches such as Tricine SDS-PAGE and 2-DE methods couple to high through put mass spectrometry (LTQ-FTICR and MALDI-TOF/TOF) in order to better understand the responsible proteins in photosynthesis and abiotic stress (salt and water) in wheat chloroplast will be highlighted. This article is part of a Special Issue entitled: Translational Plant Proteomics.
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Affiliation(s)
- Abu Hena Mostafa Kamal
- Research Center for Integrative Cellulomics, Korea Research Institute of Bioscience and Biotechnology, Daejeon 305-806, Republic of Korea
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Kamal AHM, Cho K, Kim DE, Uozumi N, Chung KY, Lee SY, Choi JS, Cho SW, Shin CS, Woo SH. Changes in physiology and protein abundance in salt-stressed wheat chloroplasts. Mol Biol Rep 2012; 39:9059-74. [DOI: 10.1007/s11033-012-1777-7] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Accepted: 06/09/2012] [Indexed: 01/27/2023]
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Lee MJ, Choi JS, Cha SW, Lee KS, Lee ZW, Hwang GS, Lee SH, Kamal AHM, Jung YA, Seung NS, Woo SH. Variation in the ginsenoside profiles of cultivated ginseng (Panax ginseng C.A. Meyer) landraces in Korea. Process Biochem 2011. [DOI: 10.1016/j.procbio.2010.08.020] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kim KH, Kamal AHM, Shin KH, Choi JS, Heo HY, Woo SH. Large-scale proteome investigation in wild relatives (A, B, and D genomes) of wheat. Acta Biochim Biophys Sin (Shanghai) 2010; 42:709-16. [PMID: 20810536 DOI: 10.1093/abbs/gmq079] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Large-scale proteomics of three wild relatives of wheat grain (A, B, and D genomes) were analyzed by using multidimensional protein identification technology coupled to liquid chromatography quadruple mass spectrometry. A total of 1568 (peptide match ≥1) and 255 (peptide match ≥2) unique proteins were detected and classified, which represents the most wide-ranging proteomic exploitation to date. The development of standard proteomes exhibiting all of the proteins involved in normal physiology will facilitate the delineation of disease/defense, metabolism, energy metabolism, and protein synthesis. A relative proteome exploration of the expression patterns indicates that proteins are involved in abiotic and biotic stress. Functional category analysis indicates that these differentially expressed proteins are mainly involved in disease/defense (15.38%, 21.26%, and 16.78%), metabolism (8.39%, 12.07%, and 14.09%), energy metabolism (11.19%, 11.49%, and 13.42%), protein synthesis (9.09%, 9.20%, and 8.72%), cell growth and division (9.09%, 4.60%, and 6.04%), cellular organization (4.20%, 5.75%, and 5.37%), development (6.29%, 2.87%, 3.36%), folding and stability (6.29%, 8.62%, and 8.05%), signal transduction (11.19%, 7.47%, and 8.05%), storage protein (4.20%, 1.72%, and 2.01%), transcription (5.59%, 5.17%, and 4.03%), and transport facilitation (1.40%, 1.15%, and 3.36%) in A, B, and D genomes, respectively. Here, we reported genome-specific protein interaction network using Cytoscape software, which provides further insight into the molecular functions and mechanism of biochemical pathways. We provide a promising understanding about the expressed proteins and protein functions. Our approach should be applicable as a marker to assist in breeding or gene transfer for quality and stress research of cultivated wheat.
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Affiliation(s)
- Ki-Hyun Kim
- Department of Crop Science, Chungbuk National University, Cheong-ju, Korea
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Abstract
During the first countrywide outbreak of dengue hemorrhagic fever in Bangladesh, we conducted surveillance for dengue at a hospital in Dhaka. Of 176 patients, primarily adults, found positive for dengue, 60.2% had dengue fever, 39.2% dengue hemorrhagic fever, and 0.6% dengue shock syndrome. The Dengue virus 3 serotype was detected in eight patients.
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Affiliation(s)
- Mahbubur Rahman
- Laboratory Sciences Division, ICDDR,B: Centre for Health an Population Research, Dhaka, Bangladesh.
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Khadeza K, Kamal AHM, Naima M, Shamsuzzaman SM. Quality assessment of sputum for Acid Fast Bacilli(AFB) test in microbiology laboratories before and after implementation of Standard Operating Procedure (SOP): a comparative study. Bangladesh J Med Sci 1970. [DOI: 10.3329/bjms.v11i1.9824] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Aims: To evaluate the present status of microbiology laboratory by comparing the test results of investigator with that of laboratory staff for sputum for Acid Fast Bacilli (AFB) withZiehl-NeelsenStaining (Z-N Staining) at primary and secondary level andto assess the present status of a microbiology laboratory for sputum for Acid Fast Bacilli (AFB) withZiehl-NeelsenStaining (Z-N Staining) at tertiary level. Material and Methods: Type of study : Cross sectional, descriptive type of study. Place of study: Department of Microbiology of Dhaka Medical College,Narsingdi Sadar Hospital,Narsingdi,PolashUpzilla Health Complex ,Polash, Narsingdi andDOTS centers. Duration of study: From July, 2007 to June,2008 Method of sampling: Non probability, purposive and convenient sampling Sample Size: Sputum for AFB: 300 sputum samples were collected for detection of AFB by direct Z-N staining, Z-N staining after bleach centrifugation and Auramine phenol staining before implementing SOP. After following SOP 150 sputum samples were collected and tested in direct Z-N method. Results: In the present study, before SOP out of 100 sputum smear at each level, discrepancy was found in 3% cases at primary level, 2% cases at secondary level and 1% case at tertiary level.After following SOP out of 50 sputum smear at each level, discrepancy was reduced to 2% cases at primary level and no discrepancy was found at secondary and tertiary level. Conclusion: Each laboratory must have SOP for laboratory testing to set the minimum acceptable standard for every test in order to improve and maintain the quality of laboratory services. DOI: http://dx.doi.org/10.3329/bjms.v11i1.9824 BJMS 2012; 11(1): 51-56
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