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Ballouze R, Ismail MN, Abu Kassim NS, Salhimi SM, Mohamad I, Abd Mutalib NS, Hassim AA, Fazalul Rahiman SS. Detection of dynorphin 1-17 biotransformation fragments in human nasal polyps by UPLC-QTOF-MS. Anal Bioanal Chem 2024; 416:545-557. [PMID: 38040942 DOI: 10.1007/s00216-023-05061-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 11/06/2023] [Accepted: 11/13/2023] [Indexed: 12/03/2023]
Abstract
Chronic rhinosinusitis with nasal polyps (CRSwNP) is a persistent inflammation of the sinonasal mucosa. CRSwNP treatments are associated with inconsistent efficacy and recurrence of symptoms. Dynorphin 1-17 (DYN 1-17) and its fragments have been shown to modulate the immune response in various inflammatory conditions. This study aimed to investigate the effect of different pH and degrees of inflammation on DYN 1-17 metabolism in human CRSwNP tissues. DYN 1-17 was incubated with grade 3 and grade 4 inflamed tissues of CRSwNP patients at pH 5.5 and pH 7.4 over a range of incubation periods. The resulting fragments were identified using an ultra-performance liquid chromatography (UPLC) system coupled to quadrupole-time of flight (QTOF) mass spectrometry based on their accurate mass. The rate of DYN 1-17 fragmentation was slower at pH 5.5 in comparison to pH 7.4. The extent and rate of metabolism of DYN 1-17 were much lower in grade 3 inflamed tissue (31-32 fragments) than in grade 4 (34-41 fragments). N-Terminal fragments (DYN 1-15, 1-11, 1-10, and 1-6) were metabolized slower at pH 5.5 as compared to pH 7.4. DYN 1-12, 1-8, 2-10, 4-10, 5-10, and 8-14 were only observed under the inflammatory pH while DYN 5-17 and 6-17 were only identified upon incubation with grade 4 CRSwNP tissues. DYN 1-17 metabolism was significantly affected by the pH level and the severity of the inflammation of CRSwNP tissues, indicating the potential roles of DYN 1-17 and its fragments in modulating the inflammatory response and their avenue as therapeutics in future studies.
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Affiliation(s)
- Rama Ballouze
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
| | - Mohd Nazri Ismail
- Analytical Biochemistry Research Centre, Universiti Sains Malaysia, 11900, Bayan Lepas, Pulau Pinang, Malaysia
| | - Nur Sofiah Abu Kassim
- School of Chemistry and Environment, Faculty of Applied Science, Universiti Teknologi MARA, 72000, Kuala Pilah, Negeri Sembilan, Malaysia
| | | | - Irfan Mohamad
- Department of Otorhinolaryngology-Head & Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia Health Campus, 16150, Kota Bharu, Kelantan, Malaysia
| | - Nor Shahida Abd Mutalib
- Department of Otorhinolaryngology-Head and Neck Surgery, Hospital Sultan Abdul Halim, 08000, Sungai Petani, Kedah, Malaysia
| | - Ahmad Anuar Hassim
- School of Pharmaceutical Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
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De bruyn M, Ceuleers H, Hanning N, Berg M, De Man JG, Hulpiau P, Hermans C, Stenman UH, Koistinen H, Lambeir AM, De Winter BY, De Meester I. Proteolytic Cleavage of Bioactive Peptides and Protease-Activated Receptors in Acute and Post-Colitis. Int J Mol Sci 2021; 22:10711. [PMID: 34639054 PMCID: PMC8509398 DOI: 10.3390/ijms221910711] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 12/16/2022] Open
Abstract
The protease activity in inflammatory bowel disease (IBD) and irritable bowel syndrome has been studied extensively using synthetic fluorogenic substrates targeting specific sets of proteases. We explored activities in colonic tissue from a 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced colitis rat model by investigating the cleavage of bioactive peptides. Pure trypsin- and elastase-like proteases on the one hand and colonic tissue from rats with TNBS-induced colitis in the acute or post-inflammatory phase on the other, were incubated with relevant peptides to identify their cleavage pattern by mass spectrometry. An increased cleavage of several peptides was observed in the colon from acute colitis rats. The tethered ligand (TL) sequences of peptides mimicking the N-terminus of protease-activated receptors (PAR) 1 and 4 were significantly unmasked by acute colitis samples and these cleavages were positively correlated with thrombin activity. Increased cleavage of β-endorphin and disarming of the TL-sequence of the PAR3-based peptide were observed in acute colitis and linked to chymotrypsin-like activity. Increased processing of the enkephalins points to the involvement of proteases with specificities different from trypsin- or chymotrypsin-like enzymes. In conclusion, our results suggest thrombin, chymotrypsin-like proteases and a set of proteases with different specificities as potential therapeutic targets in IBD.
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Affiliation(s)
- Michelle De bruyn
- Laboratory of Medical Biochemistry, University of Antwerp, 2610 Wilrijk, Belgium; (M.D.b.); (A.-M.L.)
- Infla-Med, Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium; (H.C.); (N.H.); (M.B.); (J.G.D.M.); (B.Y.D.W.)
| | - Hannah Ceuleers
- Infla-Med, Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium; (H.C.); (N.H.); (M.B.); (J.G.D.M.); (B.Y.D.W.)
- Laboratory of Experimental Medicine and Pediatrics (LEMP), University of Antwerp, 2610 Wilrijk, Belgium
| | - Nikita Hanning
- Infla-Med, Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium; (H.C.); (N.H.); (M.B.); (J.G.D.M.); (B.Y.D.W.)
- Laboratory of Experimental Medicine and Pediatrics (LEMP), University of Antwerp, 2610 Wilrijk, Belgium
| | - Maya Berg
- Infla-Med, Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium; (H.C.); (N.H.); (M.B.); (J.G.D.M.); (B.Y.D.W.)
| | - Joris G. De Man
- Infla-Med, Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium; (H.C.); (N.H.); (M.B.); (J.G.D.M.); (B.Y.D.W.)
- Laboratory of Experimental Medicine and Pediatrics (LEMP), University of Antwerp, 2610 Wilrijk, Belgium
| | - Paco Hulpiau
- Bioinformatics Knowledge Center (BiKC), Howest University of Applied Sciences, 8000 Bruges, Belgium; (P.H.); (C.H.)
| | - Cedric Hermans
- Bioinformatics Knowledge Center (BiKC), Howest University of Applied Sciences, 8000 Bruges, Belgium; (P.H.); (C.H.)
| | - Ulf-Håkan Stenman
- Department of Clinical Chemistry and Haematology, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland; (U.-H.S.); (H.K.)
| | - Hannu Koistinen
- Department of Clinical Chemistry and Haematology, University of Helsinki and Helsinki University Hospital, 00290 Helsinki, Finland; (U.-H.S.); (H.K.)
| | - Anne-Marie Lambeir
- Laboratory of Medical Biochemistry, University of Antwerp, 2610 Wilrijk, Belgium; (M.D.b.); (A.-M.L.)
- Infla-Med, Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium; (H.C.); (N.H.); (M.B.); (J.G.D.M.); (B.Y.D.W.)
| | - Benedicte Y. De Winter
- Infla-Med, Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium; (H.C.); (N.H.); (M.B.); (J.G.D.M.); (B.Y.D.W.)
- Laboratory of Experimental Medicine and Pediatrics (LEMP), University of Antwerp, 2610 Wilrijk, Belgium
- Department of Gastroenterology and Hepatology, Antwerp University Hospital (UZA), 2650 Edegem, Belgium
| | - Ingrid De Meester
- Laboratory of Medical Biochemistry, University of Antwerp, 2610 Wilrijk, Belgium; (M.D.b.); (A.-M.L.)
- Infla-Med, Centre of Excellence, University of Antwerp, 2610 Wilrijk, Belgium; (H.C.); (N.H.); (M.B.); (J.G.D.M.); (B.Y.D.W.)
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Adeodu OO, Olorunmoteni OE, Oseni SBA, Obuotor EM. Plasma and Cerebrospinal Fluid Beta-Endorphin Levels Show a Strong Association in Children with Cerebral Malaria. J Pediatr Neurosci 2018; 13:416-422. [PMID: 30937082 PMCID: PMC6413603 DOI: 10.4103/jpn.jpn_15_18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Beta (β)-endorphins are endogenous neuropeptides found in the plasma and cerebrospinal fluid (CSF) of humans but there have been reports of the relationship between the plasma and CSF β-endorphin levels in different clinical conditions. However, the relationship between β-endorphin levels in the plasma and CSF of children with cerebral malaria (CM) has not been reported. AIM To determine the relationship between β-endorphin levels in the CSF and plasma of children with CM. SETTINGS AND DESIGN This cross-sectional study involved 40 children, aged between 6 months and 14 years, admitted with a diagnosis of CM at the Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria. MATERIALS AND METHODS One milliliter (mL) of venous blood and 1mL of CSF obtained from each subject at admission were used to determine the β-endorphin levels using enzyme-linked immunosorbent assay (ELISA) method. STATISTICAL ANALYSIS Bivariate linear regression was used to determine the association between plasma and CSF β-endorphin levels using the correlation coefficient (r), coefficient of determination (R 2), and P values. RESULTS The plasma β-endorphin levels significantly positively correlated with CSF β-endorphin (r = 0.568, P = 0.001) such that for every unit rise in plasma β-endorphin, CSF β-endorphin rose by 0.252 pmol/L (confidence interval: 0.132-0.371 pmol/L). CONCLUSION The finding of positive correlation between plasma and CSF β-endorphin levels in this study suggests a possible direct link between plasma and CSF in CM, probably from the disruption of the blood-brain barrier that has been reported in CM.
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Affiliation(s)
- Oluwagbemiga O. Adeodu
- Department of Paediatrics and Child Health, Obafemi Awolowo University/Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Oluwatosin E. Olorunmoteni
- Department of Paediatrics and Child Health, Obafemi Awolowo University/Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Saheed B. A. Oseni
- Department of Paediatrics and Child Health, Obafemi Awolowo University/Obafemi Awolowo University Teaching Hospitals Complex (OAUTHC), Ile-Ife, Nigeria
| | - Efere M. Obuotor
- Department of Biochemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
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Mohd Abd Ghafar SL, Hussein MZ, Rukayadi Y, Abu Bakar Zakaria MZ. Surface-functionalized cockle shell-based calcium carbonate aragonite polymorph as a drug nanocarrier. Nanotechnol Sci Appl 2017; 10:79-94. [PMID: 28572724 PMCID: PMC5441671 DOI: 10.2147/nsa.s120868] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Calcium carbonate aragonite polymorph nanoparticles derived from cockle shells were prepared using surface functionalization method followed by purification steps. Size, morphology, and surface properties of the nanoparticles were characterized using transmission electron microscopy, field emission scanning electron microscopy, dynamic light scattering, zetasizer, X-ray powder diffraction, and Fourier transform infrared spectrometry techniques. The potential of surface-functionalized calcium carbonate aragonite polymorph nanoparticle as a drug-delivery agent were assessed through in vitro drug-loading test and drug-release test. Transmission electron microscopy, field emission scanning electron microscopy, and particle size distribution analyses revealed that size, morphology, and surface characterization had been improved after surface functionalization process. Zeta potential of the nanoparticles was found to be increased, thereby demonstrating better dispersion among the nanoparticles. Purification techniques showed a further improvement in the overall distribution of nanoparticles toward more refined size ranges <100 nm, which specifically favored drug-delivery applications. The purity of the aragonite phase and their chemical analyses were verified by X-ray powder diffraction and Fourier transform infrared spectrometry studies. In vitro biological response of hFOB 1.19 osteoblast cells showed that surface functionalization could improve the cytotoxicity of cockle shell–based calcium carbonate aragonite nanocarrier. The sample was also sensitive to pH changes and demonstrated good abilities to load and sustain in vitro drug. This study thus indicates that calcium carbonate aragonite polymorph nanoparticles derived from cockle shells, a natural biomaterial, with modified surface characteristics are promising and can be applied as efficient carriers for drug delivery.
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Affiliation(s)
| | | | - Yaya Rukayadi
- Institute of Bioscience.,Department of Food Science, Faculty of Food Science and Technology
| | - Md Zuki Abu Bakar Zakaria
- Institute of Bioscience.,Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, Serdang, Selangor, Malaysia
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Morgan M, Heffernan A, Benhabib F, Wagner S, Hewavitharana AK, Shaw PN, Cabot PJ. The efficacy of Dynorphin fragments at the κ, μ and δ opioid receptor in transfected HEK cells and in an animal model of unilateral peripheral inflammation. Peptides 2017; 89:9-16. [PMID: 28049031 DOI: 10.1016/j.peptides.2016.12.019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 12/20/2016] [Accepted: 12/30/2016] [Indexed: 11/16/2022]
Abstract
Dynorphin 1-17 is an endogenous peptide that is released at sites of inflammation by leukocytes, binding preferentially to κ-opioid receptors (KOP) to mediate nociception. We have previously shown that dynorphin 1-17 is rapidly biotransformed to smaller peptide fragments in inflamed tissue homogenate. This study aimed to determine the efficacy and potency of selected dynorphin fragments produced in an inflamed environment at the KOP, μ and δ-opioid receptors (MOP and DOP respectively) and in a model of inflammatory pain. Functional activity of Dynorphin 1-17 and fragments (1-6, 1-7 and 1-9) were screened over a range of concentrations against forskolin stimulated human embryonic kidney 293 (HEK) cells stably transfected with one of KOP, MOP or DOP. The analgesic activity of dynorphin 1-7 in a unilateral model of inflammatory pain was subsequently tested. Rats received unilateral intraplantar injections of Freund's Complete Adjuvant to induce inflammation. After six days rats received either dynorphin 1-7, 1-17 or the selective KOP agonist U50488H and mechanical allodynia determined. Dynorphin 1-7 and 1-9 displayed the greatest activity across all receptor subtypes, while dynorphin 1-7, 1-9 and 1-17 displaying a potent activation of both KOP and DOP evidenced by cAMP inihibition. Administration of dynorphin 1-7 and U50488H, but not dynorphin 1-17 resulted in a significant increase in paw pressure threshold at an equimolar dose suggesting the small peptide dynorphin 1-7 mediates analgesia. These results show that dynorphin fragments produced in an inflamed tissue homogenate have changed activity at the opioid receptors and that dynorphin 1-7 mediates analgesia.
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Affiliation(s)
- M Morgan
- School of Pharmacy, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - A Heffernan
- School of Pharmacy, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - F Benhabib
- School of Pharmacy, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - S Wagner
- School of Pharmacy, The University of Queensland, Brisbane, Qld, 4072, Australia.
| | - A K Hewavitharana
- School of Pharmacy, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - P N Shaw
- School of Pharmacy, The University of Queensland, Brisbane, Qld, 4072, Australia
| | - P J Cabot
- School of Pharmacy, The University of Queensland, Brisbane, Qld, 4072, Australia.
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Asvadi NH, Morgan M, Herath HM, Hewavitharana AK, Shaw PN, Cabot PJ. Beta-endorphin 1-31 biotransformation and cAMP modulation in inflammation. PLoS One 2014; 9:e90380. [PMID: 24618600 PMCID: PMC3949714 DOI: 10.1371/journal.pone.0090380] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2013] [Accepted: 01/28/2014] [Indexed: 11/19/2022] Open
Abstract
A large body of evidence now exists for the immune cell expression, production, and the release of beta-endorphin (BE 1–31) within inflamed tissue. The inflammatory milieu is characterised by increased acidity, temperature and metabolic activity. Within these harsh conditions BE 1–31 is even more susceptible to increased enzymatic degradation over that of plasma or other non-injured tissue. To elucidate the biotransformation pathways of BE 1–31 and provide an insight to the impact of inflamed tissue environments, BE 1–31 and three of its major N-terminal fragments (BE 1–11, BE 1–13 and BE 1–17) were incubated in inflamed tissue homogenates at pH 5.5 for 2 hrs. In addition, the potency of BE 1–31 and five main N – terminal fragments (BE 1–9, BE 1–11, BE 1–13, BE 1–17, BE 1–20) was assessed at mu-opioid receptors (MOR), delta-opioid receptors (DOR), and kappa-opioid receptors (KOR). Opioid receptor potency was investigated by examining the modulation of forskolin induced cAMP accumulation. The majority of the N-terminal fragment of BE 1–31 had similar efficacy to BE 1–31 at MOR. The shortest of the major N-terminal fragments (BE 1–9), had partial agonist activity at MOR but possessed the highest potency of all tested peptides at DOR. There was limited effect for BE 1–31 and the biotransformed peptides at KOR. Major N-terminal fragments produced within inflamed tissue have increased presence within inflamed tissue over that of the parent molecule BE 1–31 and may therefore contribute to BE 1–31 efficacy within disease states that involve inflammation.
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Affiliation(s)
| | - Michael Morgan
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
| | - Herath M. Herath
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
| | | | - P. Nicholas Shaw
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
| | - Peter J. Cabot
- School of Pharmacy, The University of Queensland, Brisbane, Queensland, Australia
- * E-mail:
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Asvadi NH, Morgan M, Hewavitharana AK, Shaw PN, Cabot PJ. Biotransformation of beta-endorphin and possible therapeutic implications. Front Pharmacol 2014; 5:18. [PMID: 24600392 PMCID: PMC3928545 DOI: 10.3389/fphar.2014.00018] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2013] [Accepted: 01/28/2014] [Indexed: 12/02/2022] Open
Affiliation(s)
- Naghmeh H Asvadi
- School of Pharmacy, The University of Queensland Brisbane, Queensland, Australia
| | - Michael Morgan
- School of Pharmacy, The University of Queensland Brisbane, Queensland, Australia
| | | | - P Nicholas Shaw
- School of Pharmacy, The University of Queensland Brisbane, Queensland, Australia
| | - Peter J Cabot
- School of Pharmacy, The University of Queensland Brisbane, Queensland, Australia
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Abstract
This paper is the thirty-fifth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2012 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration and thermoregulation (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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Morgan M, Herath HMDR, Cabot PJ, Shaw PN, Hewavitharana AK. Dynorphin A 1–17 biotransformation in inflamed tissue, serum and trypsin solution analysed by liquid chromatography–tandem mass spectrometry. Anal Bioanal Chem 2012; 404:3111-21. [DOI: 10.1007/s00216-012-6406-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 09/02/2012] [Accepted: 09/03/2012] [Indexed: 11/24/2022]
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