1
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Espinosa-Garavito AC, Quiroz EN, Galán-Freyle NJ, Aroca-Martinez G, Hernández-Rivera SP, Villa-Medina J, Méndez-López M, Gomez-Escorcia L, Acosta-Hoyos A, Pacheco-Lugo L, Espitia-Almeida F, Pacheco-Londoño LC. Surface-enhanced Raman Spectroscopy in urinalysis of hypertension patients with kidney disease. Sci Rep 2024; 14:3035. [PMID: 38321263 PMCID: PMC10847430 DOI: 10.1038/s41598-024-53679-9] [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: 08/28/2023] [Accepted: 02/03/2024] [Indexed: 02/08/2024] Open
Abstract
Arterial hypertension (AH) is a multifactorial and asymptomatic disease that affects vital organs such as the kidneys and heart. Considering its prevalence and the associated severe health repercussions, hypertension has become a disease of great relevance for public health across the globe. Conventionally, the classification of an individual as hypertensive or non-hypertensive is conducted through ambulatory blood pressure monitoring over a 24-h period. Although this method provides a reliable diagnosis, it has notable limitations, such as additional costs, intolerance experienced by some patients, and interferences derived from physical activities. Moreover, some patients with significant renal impairment may not present proteinuria. Accordingly, alternative methodologies are applied for the classification of individuals as hypertensive or non-hypertensive, such as the detection of metabolites in urine samples through liquid chromatography or mass spectrometry. However, the high cost of these techniques limits their applicability for clinical use. Consequently, an alternative methodology was developed for the detection of molecular patterns in urine collected from hypertension patients. This study generated a direct discrimination model for hypertensive and non-hypertensive individuals through the amplification of Raman signals in urine samples based on gold nanoparticles and supported by chemometric techniques such as partial least squares-discriminant analysis (PLS-DA). Specifically, 162 patient urine samples were used to create a PLS-DA model. These samples included 87 urine samples from patients diagnosed with hypertension and 75 samples from non-hypertensive volunteers. In the AH group, 35 patients were diagnosed with kidney damage and were further classified into a subgroup termed (RAH). The PLS-DA model with 4 latent variables (LV) was used to classify the hypertensive patients with external validation prediction (P) sensitivity of 86.4%, P specificity of 77.8%, and P accuracy of 82.5%. This study demonstrates the ability of surface-enhanced Raman spectroscopy to differentiate between hypertensive and non-hypertensive patients through urine samples, representing a significant advance in the detection and management of AH. Additionally, the same model was then used to discriminate only patients diagnosed with renal damage and controls with a P sensitivity of 100%, P specificity of 77.8%, and P accuracy of 82.5%.
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Affiliation(s)
- Alberto C Espinosa-Garavito
- Centro de Investigaciones en Ciencias de la Vida, Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, 080002, Barranquilla, Atlántico, Colombia
| | - Elkin Navarro Quiroz
- Centro de Investigaciones en Ciencias de la Vida, Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, 080002, Barranquilla, Atlántico, Colombia
| | - Nataly J Galán-Freyle
- Centro de Investigaciones en Ciencias de la Vida, Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, 080002, Barranquilla, Atlántico, Colombia
| | | | - Samuel P Hernández-Rivera
- Center for Chemical Sensors, DHS SENTRY COE, University of Puerto Rico-Mayaguez, Mayaguez, PR, 00681, USA
| | - Joe Villa-Medina
- Center of Pharmaceutical Research, Procaps Laboratories, 080002, Barranquilla, Colombia
| | - Maximiliano Méndez-López
- Grupo de Química y Biología, Departamento de Química y Biología, Universidad del Norte, Km 5 Vía Puerto Colombia, 080001, Barranquilla, Colombia
| | | | - Antonio Acosta-Hoyos
- Centro de Investigaciones en Ciencias de la Vida, Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, 080002, Barranquilla, Atlántico, Colombia
| | - Lisandro Pacheco-Lugo
- Centro de Investigaciones en Ciencias de la Vida, Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, 080002, Barranquilla, Atlántico, Colombia
| | - Fabián Espitia-Almeida
- Centro de Investigaciones en Ciencias de la Vida, Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, 080002, Barranquilla, Atlántico, Colombia
| | - Leonardo C Pacheco-Londoño
- Centro de Investigaciones en Ciencias de la Vida, Facultad de Ciencias Básicas y Biomédicas, Universidad Simón Bolívar, 080002, Barranquilla, Atlántico, Colombia.
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2
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León-Mejía G, Rueda RA, Pérez Pérez J, Miranda-Guevara A, Moreno OF, Quintana-Sosa M, Trindade C, De Moya YS, Ruiz-Benitez M, Lemus YB, Rodríguez IL, Oliveros-Ortiz L, Acosta-Hoyos A, Pacheco-Londoño LC, Muñoz A, Hernández-Rivera SP, Olívero-Verbel J, da Silva J, Henriques JAP. Analysis of the cytotoxic and genotoxic effects in a population chronically exposed to coal mining residues. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:54095-54105. [PMID: 36869947 PMCID: PMC10119205 DOI: 10.1007/s11356-023-26136-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
During coal mining activities, many compounds are released into the environment that can negatively impact human health. Particulate matter, polycyclic aromatic hydrocarbons (PAHs), metals, and oxides are part of the complex mixture that can affect nearby populations. Therefore, we designed this study to evaluate the potential cytotoxic and genotoxic effects in individuals chronically exposed to coal residues from peripheral blood lymphocytes and buccal cells. We recruited 150 individuals who lived more than 20 years in La Loma-Colombia and 120 control individuals from the city of Barranquilla without a history of exposure to coal mining. In the cytokinesis-block micronucleus cytome (CBMN-Cyt) assay, significant differences in the frequency of micronucleus (MN), nucleoplasmic bridge (NPB), nuclear bud (NBUD), and apoptotic cells (APOP) were observed between the two groups. In the buccal micronucleus cytome (BM-Cyt) assay, a significant formation of NBUD, karyorrhexis (KRX), karyolysis (KRL), condensed chromatin (CC), and binucleated (BN) cells was observed in the exposed group. Considering the characteristics of the study group, a significant correlation for CBMN-Cyt was found between NBUD and vitamin consumption, between MN or APOP and meat consumption, and between MN and age. Moreover, a significant correlation for BM-Cyt was found between KRL and vitamin consumption or age, and BN versus alcohol consumption. Using Raman spectroscopy, a significant increase in the concentration of DNA/RNA bases, creatinine, polysaccharides, and fatty acids was detected in the urine of individuals exposed to coal mining compared to the control group. These results contribute to the discussion on the effects of coal mining on nearby populations and the development of diseases due to chronic exposure to these residues.
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Affiliation(s)
- Grethel León-Mejía
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia.
| | - Robinson Alvarez Rueda
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Jose Pérez Pérez
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Alvaro Miranda-Guevara
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Ornella Fiorillo Moreno
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Milton Quintana-Sosa
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Cristiano Trindade
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Yurina Sh De Moya
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Martha Ruiz-Benitez
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Yesit Bello Lemus
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Ibeth Luna Rodríguez
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Ludis Oliveros-Ortiz
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Antonio Acosta-Hoyos
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Leonardo C Pacheco-Londoño
- Centro de Investigaciones en Ciencias de La Vida (CICV), Universidad Simón Bolívar, Cra 53 Calle 64-51, 080002, Barranquilla, Colombia
| | - Amner Muñoz
- Grupo de Investigación en Química Y Biología, Universidad del Norte, Barranquilla, Colombia
| | - Samuel P Hernández-Rivera
- ALERT DHS Center of Excellence for Explosives Research, Department of Chemistry, University of Puerto Rico, Mayagüez, PR, 00681, USA
| | - Jesús Olívero-Verbel
- Environmental and Computational Chemistry Group, School of Pharmaceutical Sciences, Zaragocilla Campus, University of Cartagena, Cartagena, Colombia
| | - Juliana da Silva
- Laboratório de Genética Toxicológica, Universidade Luterana Do Brasil (ULBRA), Canoas-RS, Brazil
| | - João Antonio Pêgas Henriques
- Departamento de Biofísica, Centro de Biotecnologia, Universidade Federal Do Rio Grande Do Sul (UFRGS), Porto Alegre, RS, Brazil
- Programa de Pós-Graduação Em Biotecnologia E Em Ciências Médicas, Universidade Do Vale Do Taquari - UNIVATES, Lajeado, RS, Brazil
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3
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Delrue C, Speeckaert MM. The Potential Applications of Raman Spectroscopy in Kidney Diseases. J Pers Med 2022; 12:jpm12101644. [PMID: 36294783 PMCID: PMC9604710 DOI: 10.3390/jpm12101644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/09/2022] [Accepted: 09/29/2022] [Indexed: 12/23/2022] Open
Abstract
Raman spectroscopy (RS) is a spectroscopic technique based on the inelastic interaction of incident electromagnetic radiation (from a laser beam) with a polarizable molecule, which, when scattered, carries information from molecular vibrational energy (the Raman effect). RS detects biochemical changes in biological samples at the molecular level, making it an effective analytical technique for disease diagnosis and prognosis. It outperforms conventional sample preservation techniques by requiring no chemical reagents, reducing analysis time even at low concentrations, and working in the presence of interfering agents or solvents. Because routinely utilized biomarkers for kidney disease have limitations, there is considerable interest in the potential use of RS. RS may identify and quantify urinary and blood biochemical components, with results comparable to reference methods in nephrology.
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Affiliation(s)
- Charlotte Delrue
- Department of Nephrology, Ghent University Hospital, 9000 Ghent, Belgium
| | - Marijn M. Speeckaert
- Department of Nephrology, Ghent University Hospital, 9000 Ghent, Belgium
- Research Foundation-Flanders (FWO), 1000 Brussels, Belgium
- Correspondence: ; Tel.: +32-9-332-4509
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4
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Müller-Deile J, Sarau G, Kotb AM, Jaremenko C, Rolle-Kampczyk UE, Daniel C, Kalkhof S, Christiansen SH, Schiffer M. Novel diagnostic and therapeutic techniques reveal changed metabolic profiles in recurrent focal segmental glomerulosclerosis. Sci Rep 2021; 11:4577. [PMID: 33633212 PMCID: PMC7907124 DOI: 10.1038/s41598-021-83883-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Accepted: 02/09/2021] [Indexed: 12/19/2022] Open
Abstract
Idiopathic forms of Focal Segmental Glomerulosclerosis (FSGS) are caused by circulating permeability factors, which can lead to early recurrence of FSGS and kidney failure after kidney transplantation. In the past three decades, many research endeavors were undertaken to identify these unknown factors. Even though some potential candidates have been recently discussed in the literature, "the" actual factor remains elusive. Therefore, there is an increased demand in FSGS research for the use of novel technologies that allow us to study FSGS from a yet unexplored angle. Here, we report the successful treatment of recurrent FSGS in a patient after living-related kidney transplantation by removal of circulating factors with CytoSorb apheresis. Interestingly, the classical published circulating factors were all in normal range in this patient but early disease recurrence in the transplant kidney and immediate response to CytoSorb apheresis were still suggestive for pathogenic circulating factors. To proof the functional effects of the patient's serum on podocytes and the glomerular filtration barrier we used a podocyte cell culture model and a proteinuria model in zebrafish to detect pathogenic effects on the podocytes actin cytoskeleton inducing a functional phenotype and podocyte effacement. We then performed Raman spectroscopy in the < 50 kDa serum fraction, on cultured podocytes treated with the FSGS serum and in kidney biopsies of the same patient at the time of transplantation and at the time of disease recurrence. The analysis revealed changes in podocyte metabolome induced by the FSGS serum as well as in focal glomerular and parietal epithelial cell regions in the FSGS biopsy. Several altered Raman spectra were identified in the fractionated serum and metabolome analysis by mass spectrometry detected lipid profiles in the FSGS serum, which were supported by disturbances in the Raman spectra. Our novel innovative analysis reveals changed lipid metabolome profiles associated with idiopathic FSGS that might reflect a new subtype of the disease.
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Affiliation(s)
- Janina Müller-Deile
- Department of Nephrology and Hypertension, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany.
| | - George Sarau
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Dresden, Germany.,Leuchs Emeritus Group, Max Planck Institute for the Science of Light, Erlangen, Germany.,Institute for Nanotechnology and Correlative Microscopy eV INAM, Forchheim, Germany
| | - Ahmed M Kotb
- Department of Nephrology and Hypertension, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany.,Department of Anatomy and Histology, Faculty of Veterinary Medicine, Assiut University, Asyût, Egypt
| | - Christian Jaremenko
- Institute for Nanotechnology and Correlative Microscopy eV INAM, Forchheim, Germany.,Institute of Optics, Information and Photonics, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany
| | - Ulrike E Rolle-Kampczyk
- Department Molecular Systems Biology, Helmholtz Centre for Environmental Research, Leipzig, Germany
| | - Christoph Daniel
- Department of Nephropathology, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany
| | - Stefan Kalkhof
- Institute for Bioanalysis, University of Applied Sciences Coburg, Coburg, Germany.,Department of Molecular Systems Biology, Helmholtz-Centre for Environmental Research-UFZ, Leipzig, Germany
| | - Silke H Christiansen
- Fraunhofer Institute for Ceramic Technologies and Systems IKTS, Dresden, Germany.,Leuchs Emeritus Group, Max Planck Institute for the Science of Light, Erlangen, Germany.,Institute for Nanotechnology and Correlative Microscopy eV INAM, Forchheim, Germany.,Physics Department, Freie Universität Berlin, Berlin, Germany
| | - Mario Schiffer
- Department of Nephrology and Hypertension, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg, Erlangen, Germany
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5
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Assessment of treatment efficacy using surface-enhanced Raman spectroscopy analysis of urine in rats with kidney transplantation or kidney disease. Clin Exp Nephrol 2019; 23:880-889. [PMID: 30830549 DOI: 10.1007/s10157-019-01721-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 02/21/2019] [Indexed: 02/05/2023]
Abstract
BACKGROUND Individuals who have kidney disease or kidney transplants need routine assessment of their kidney damage and function, which are largely measured based on histological examination of kidney biopsies, blood test, and urinalysis. These methods are practically difficult or inconvenient, and expensive. The objective of this study was to develop a model to estimate the kidney damage and function by surface-enhanced Raman spectroscopy (SERS). METHODS Urine samples were collected from two previous studies: renal allograft recipient Lewis rats receiving anti-TGF-β antibody or control antibody treatment and obese diabetic ZSF1 rats with kidney disease fed with whole grape powder-containing chow or control chow. Silver nanoparticle-based SERS spectra of urine were measured. SERS spectra were analyzed using principal component analysis (PCA) combined with linear discriminant analysis (LDA) and partial least squires (PLS) analysis. RESULTS PCA/LDA separated anti-TGF-β antibody-treated group from control group with 90% sensitivity and 70% specificity in kidney transplants, and grape-fed group from controls with 72.7% sensitivity and 60% specificity in diabetic kidneys. The receiver operating characteristic curves showed that the integration area under the curve was 0.850 ± 0.095 (p = 0.008) in kidney transplant groups and 0.800 ± 0.097 (p = 0.02) in diabetic kidney groups. PLS predicted the biochemical parameters of kidney function using the SERS spectra, resulting in R2 = 0.8246 (p < 0.001,urine protein), R2 = 0.8438 (p < 0.001, urine creatinine), R2 = 0.9265 (p < 0.001, urea), R2 = 0.8719 (p < 0.001, serum creatinine), and R2 = 0.6014 (p < 0.001, urine protein to creatinine ratio). CONCLUSION Urine SERS spectral analysis suggesting that it may become a convenient method for rapid assessment of renal impairment.
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6
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Sperati CJ, Zhang C, Delsante M, Gupta R, Bagnasco S, Barman I. Raman Spectroscopy for the Diagnosis of Intratubular Triamterene Crystallization. Kidney Int Rep 2018; 3:997-1003. [PMID: 29989004 PMCID: PMC6035282 DOI: 10.1016/j.ekir.2018.03.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Affiliation(s)
- C John Sperati
- Division of Nephrology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Chi Zhang
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland, USA
| | - Marco Delsante
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Rajib Gupta
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, Minnesota, USA
| | - Serena Bagnasco
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Ishan Barman
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, Maryland, USA.,Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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7
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Chi J, Ma Y, Weng FL, Thiessen-Philbrook H, Parikh CR, Du H. Surface-enhanced Raman scattering analysis of urine from deceased donors as a prognostic tool for kidney transplant outcome. JOURNAL OF BIOPHOTONICS 2017; 10:1743-1755. [PMID: 28485029 PMCID: PMC5680137 DOI: 10.1002/jbio.201700019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/15/2017] [Accepted: 04/18/2017] [Indexed: 05/07/2023]
Abstract
We report the utility of surface-enhanced Raman scattering (SERS) analysis of urine from deceased donors for prognosis of kidney transplant outcomes. Iodide-modified silver nanoparticles were used as the enabler for sensitive measurements of urine proteins. Principal component analysis (PCA) and linear discriminant analysis (LDA) were employed for the statistical analysis of the SERS data. Thirty urine samples in three classes were analysed. The ATN class consists of donors whose kidneys had acute tubular necrosis (ATN), the most common type of acute kidney injury (AKI) with high risk of poor graft performance in recipients, yet yielded acceptable transplant outcome. The DGF class is comprised of donors whose kidney had delayed graft function (DGF) in recipients. The control class includes donors whose kidneys did not have donor ATN or recipient DGF. We show a sensitivity of more than 90 % in differentiating the ATN class from the DGF and control classes. Our methodology can thus help clinicians choose kidneys in the high-risk ATN category for transplant which would otherwise be discarded. Our research is impactful in that it could serve as a valuable guidance to expand the deceased donor pool to include those perceived as high-risk AKI type based on common urinary biomarkers. Picutre: Scheme of SERS analysis of urine samples from deceased donors for kidney transplant outcome indication.
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Affiliation(s)
- Jingmao Chi
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Yiwei Ma
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, NJ 07030, USA
| | - Francis L. Weng
- Renal and Pancreas Transplant Division, Saint Barnabas Medical Center, Livingston, NJ 07039, USA
| | | | - Chirag R. Parikh
- Department of Medicine, School of Medicine, Yale University, New Haven, CT 06510, USA
| | - Henry Du
- Department of Chemical Engineering and Materials Science, Stevens Institute of Technology, Hoboken, NJ 07030, USA
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8
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Arnob MMP, Shih WC. 3-Dimensional Plasmonic Substrates Based on Chicken Eggshell Bio-Templates for SERS-Based Bio-Sensing. MICROMACHINES 2017. [PMCID: PMC6190012 DOI: 10.3390/mi8060196] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Md Masud Parvez Arnob
- Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77204, USA;
| | - Wei-Chuan Shih
- Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77204, USA;
- Department of Biomedical Engineering, University of Houston, Houston, TX 77204, USA
- Program of Materials Science and Engineering, University of Houston, Houston, TX 77204, USA
- Department of Chemistry, University of Houston, Houston, TX 77204, USA
- Correspondence: ; Tel.: +1-713-743-4454
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9
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Otange BO, Birech Z, Okonda J, Rop R. Conductive silver paste smeared glass substrates for label-free Raman spectroscopic detection of HIV-1 and HIV-1 p24 antigen in blood plasma. Anal Bioanal Chem 2017; 409:3253-3259. [PMID: 28255920 DOI: 10.1007/s00216-017-0267-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2016] [Revised: 01/24/2017] [Accepted: 02/17/2017] [Indexed: 11/25/2022]
Abstract
We report on application of conductive silver paste smeared glass slides as Raman spectroscopy sample substrates for label-free detection of HIV-1 p24 antigen in blood plasma. We also show that the same substrates can be applied in Raman spectroscopic screening of blood plasma for presence of HIV. The characteristic Raman spectrum of HIV-1 p24 antigen displayed prominent bands that were assigned to ribonucleic acids (RNA) and proteins that constitute the antigen. This spectrum can be used as reference during Raman spectroscopic screening for HIV in plasma within the first few days after exposure (<7 days). The Raman spectra obtained from HIV+ plasma displayed unique peaks centered at wavenumbers 928, 990, 1270, 1397, and 1446 cm-1 attributed to the Raman active vibrations in the virion carbohydrates, lipids, and proteins. Other bands similar to those reported in literature were also seen and assignments made. The attachment of the HIV virions to silver nanoparticles via gp120 glycoprotein knobs was thought to be responsible for the enhanced Raman signals of proteins associated with the virus. The principal component analysis (PCA) applied on the combined spectral data showed that HIV- and HIV+ spectra had differing spectral patterns. This indicated the great power of Raman spectroscopy in HIV detection when plasma samples are deposited onto silver paste smeared glass substrates. The Raman peaks responsible for the segregation of the spectral data in PCA were mainly those assigned to the viral proteins (645, 725, 813, 1270, and 1658 cm-1). Excellent results were obtained from Artificial Neural Network (ANN) applied on the HIV+ Raman spectral data around the prominent peak centered at 1270 cm-1 with R (coefficient of correlation) and R 2 (coefficient of determination) values of 0.9958 and 0.9895, respectively. The method has the potential of being used as quick blood screening for HIV before blood transfusion with the Raman peaks assigned to the virion proteins acting as reference. Graphical Abstract The HIV type 1 virus particle gets attached to the silver nanoparticle contained in the conductive silver paste smear onto a glass slide. This results in strong Raman signals associated with the components of the virion. The signals are collected, dispersed in a spectrometer and displayed on a computer screen. Method can be used as a label-free and rapid HIV screening in blood plasma.
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Affiliation(s)
- Ben O Otange
- Department of Physics, Egerton University, P.O Box 536-20115, Egerton, 20115, Kenya
| | - Zephania Birech
- Department of Physics, University of Nairobi, P.O Box 30197-00100, Nairobi, 00100, Kenya.
| | - Justus Okonda
- Department of Physics, University of Nairobi, P.O Box 30197-00100, Nairobi, 00100, Kenya
| | - Ronald Rop
- Department of Physics, Egerton University, P.O Box 536-20115, Egerton, 20115, Kenya
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10
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Kumar B. N. V, Guo S, Bocklitz T, Rösch P, Popp J. Demonstration of Carbon Catabolite Repression in Naphthalene Degrading Soil Bacteria via Raman Spectroscopy Based Stable Isotope Probing. Anal Chem 2016; 88:7574-82. [DOI: 10.1021/acs.analchem.6b01046] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Vinay Kumar B. N.
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University of Jena, Helmholtzweg 4, D-07743 Jena, Germany
- InfectoGnostics, Forschungscampus Jena, Philosophenweg
7, D-07743 Jena, Germany
| | - Shuxia Guo
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University of Jena, Helmholtzweg 4, D-07743 Jena, Germany
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany
| | - Thomas Bocklitz
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University of Jena, Helmholtzweg 4, D-07743 Jena, Germany
- InfectoGnostics, Forschungscampus Jena, Philosophenweg
7, D-07743 Jena, Germany
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany
| | - Petra Rösch
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University of Jena, Helmholtzweg 4, D-07743 Jena, Germany
- InfectoGnostics, Forschungscampus Jena, Philosophenweg
7, D-07743 Jena, Germany
| | - Jürgen Popp
- Institute
of Physical Chemistry and Abbe Center of Photonics, Friedrich Schiller University of Jena, Helmholtzweg 4, D-07743 Jena, Germany
- InfectoGnostics, Forschungscampus Jena, Philosophenweg
7, D-07743 Jena, Germany
- Leibniz Institute of Photonic Technology, Albert-Einstein-Straße 9, D-07745 Jena, Germany
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