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Ricciardi V, Lasalvia M, Perna G, Portaccio M, Delfino I, Lepore M, Capozzi V, Manti L. Vibrational spectroscopies for biochemical investigation of X-ray exposure effects on SH-SY5Y human neuroblastoma cells. RADIATION AND ENVIRONMENTAL BIOPHYSICS 2023:10.1007/s00411-023-01035-2. [PMID: 37392215 DOI: 10.1007/s00411-023-01035-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 06/20/2023] [Indexed: 07/03/2023]
Abstract
Neuroblastoma is the most recurring cancer in childhood and adolescence. The SH-SY5Y neuroblastoma cell line is generally adopted for elaborating new therapeutical approaches and/or elaborating strategies for the prevention of central nervous system disturbances. In fact, it represents a valid model system for investigating in vitro the effects on the brain of X-ray exposure using vibrational spectroscopies that can detect early radiation-induced molecular alterations of potential clinical usefulness. In recent years, we dedicated significant efforts in the use of Fourier-transform and Raman microspectroscopy techniques for characterizing such radiation-induced effects on SH-SY5Y cells by examining the contributions from different cell components (DNA, proteins, lipids, and carbohydrates) to the vibrational spectra. In this review, we aim at revising and comparing the main results of our studies to provide a wide outlook of the latest outcomes and a framework for future radiobiology research using vibrational spectroscopies. A short description of our experimental approaches and data analysis procedures is also reported.
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Affiliation(s)
- Valerio Ricciardi
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, 80100, Naples, Italy
| | - Maria Lasalvia
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, 71122, Foggia, Italy
- Istituto Nazionale di Fisica Nucleare-Sezione di Bari, 70100, Bari, Italy
| | - Giuseppe Perna
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, 71122, Foggia, Italy
- Istituto Nazionale di Fisica Nucleare-Sezione di Bari, 70100, Bari, Italy
| | - Marianna Portaccio
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", 80138, Naples, Italy
| | - Ines Delfino
- Dipartimento di Scienze Ecologiche e Biologiche, Università degli Studi della Tuscia, Viterbo, Italy.
| | - Maria Lepore
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", 80138, Naples, Italy
| | - Vito Capozzi
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, 71122, Foggia, Italy
- Istituto Nazionale di Fisica Nucleare-Sezione di Bari, 70100, Bari, Italy
| | - Lorenzo Manti
- Istituto Nazionale di Fisica Nucleare-Sezione di Napoli, 80100, Naples, Italy
- Dipartimento di Fisica "E. Pancini", Università degli Studi di Napoli "Federico II", 80100, Naples, Italy
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2
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Zhang Y, Ren L, Wang Q, Wen Z, Liu C, Ding Y. Raman Spectroscopy: A Potential Diagnostic Tool for Oral Diseases. Front Cell Infect Microbiol 2022; 12:775236. [PMID: 35186787 PMCID: PMC8855094 DOI: 10.3389/fcimb.2022.775236] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 01/17/2022] [Indexed: 12/24/2022] Open
Abstract
Oral diseases impose a major health burden worldwide and have a profound effect on general health. Dental caries, periodontal diseases, and oral cancers are the most common oral health conditions. Their occurrence and development are related to oral microbes, and effective measures for their prevention and the promotion of oral health are urgently needed. Raman spectroscopy detects molecular vibration information by collecting inelastic scattering light, allowing a “fingerprint” of a sample to be acquired. It provides the advantages of rapid, sensitive, accurate, and minimally invasive detection as well as minimal interference from water in the “fingerprint region.” Owing to these characteristics, Raman spectroscopy has been used in medical detection in various fields to assist diagnosis and evaluate prognosis, such as detecting and differentiating between bacteria or between neoplastic and normal brain tissues. Many oral diseases are related to oral microbial dysbiosis, and their lesions differ from normal tissues in essential components. The colonization of keystone pathogens, such as Porphyromonas gingivalis, resulting in microbial dysbiosis in subgingival plaque, is the main cause of periodontitis. Moreover, the components in gingival crevicular fluid, such as infiltrating inflammatory cells and tissue degradation products, are markedly different between individuals with and without periodontitis. Regarding dental caries, the compositions of decayed teeth are transformed, accompanied by an increase in acid-producing bacteria. In oral cancers, the compositions and structures of lesions and normal tissues are different. Thus, the changes in bacteria and the components of saliva and tissue can be used in examinations as special markers for these oral diseases, and Raman spectroscopy has been acknowledged as a promising measure for detecting these markers. This review summarizes and discusses key research and remaining problems in this area. Based on this, suggestions for further study are proposed.
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Affiliation(s)
- Yuwei Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Liang Ren
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Qi Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhining Wen
- College of Chemistry, Sichuan University, Chengdu, China
| | - Chengcheng Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Chengcheng Liu, ; Yi Ding,
| | - Yi Ding
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Periodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Chengcheng Liu, ; Yi Ding,
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3
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An FTIR Microspectroscopy Ratiometric Approach for Monitoring X-ray Irradiation Effects on SH-SY5Y Human Neuroblastoma Cells. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10082974] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The ability of Fourier transform infrared (FTIR) spectroscopy in analyzing cells at a molecular level was exploited for investigating the biochemical changes induced in protein, nucleic acid, lipid, and carbohydrate content of cells after irradiation by graded X-ray doses. Infrared spectra from in vitro SH-SY5Y neuroblastoma cells following exposure to X-rays (0, 2, 4, 6, 8, 10 Gy) were analyzed using a ratiometric approach by evaluating the ratios between the absorbance of significant peaks. The spectroscopic investigation was performed on cells fixed immediately (t0 cells) and 24 h (t24 cells) after irradiation to study both the initial radiation-induced damage and the effect of the ensuing cellular repair processes. The analysis of infrared spectra allowed us to detect changes in proteins, lipids, and nucleic acids attributable to X-ray exposure. The ratiometric analysis was able to quantify changes for the protein, lipid, and DNA components and to suggest the occurrence of apoptosis processes. The ratiometric study of Amide I band indicated also that the secondary structure of proteins was significantly modified. The comparison between the results from t0 and t24 cells indicated the occurrence of cellular recovery processes. The adopted approach can provide a very direct way to monitor changes for specific cellular components and can represent a valuable tool for developing innovative strategies to monitor cancer radiotherapy outcome.
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Camerlingo C, Lisitskiy M, Lepore M, Portaccio M, Montorio D, Prete SD, Cennamo G. Characterization of Human Tear Fluid by Means of Surface-Enhanced Raman Spectroscopy. SENSORS 2019; 19:s19051177. [PMID: 30866575 PMCID: PMC6427673 DOI: 10.3390/s19051177] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/26/2019] [Accepted: 03/04/2019] [Indexed: 11/16/2022]
Abstract
Tears are exceptionally rich sources of information on the health status of the eyes, as well as of whole body functionality, due to the presence of a large variety of salts and organic components whose concentration can be altered by pathologies, eye diseases and/or inflammatory processes. Surface enhanced Raman spectroscopy (SERS) provides a unique method for analyzing low concentrations of organic fluids such as tears. In this work, a home-made colloid of gold nanoparticles has been used for preparing glass substrates able to efficiently induce an SERS effect in fluid samples excited by a He–Ne laser (λ = 633 nm). The method has been preliminary tested on Rhodamine 6G aqueous solutions at different concentrations, proving the possibility to sense substance concentrations as low as few μM, i.e., of the order of the main tear organic components. A clear SERS response has been obtained for human tear samples, allowing an interesting insight into tear composition. In particular, aspartic acid and glutamic acid have been shown to be possible markers for two important human tear components, i.e., lactoferrin and lysozyme.
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Affiliation(s)
- Carlo Camerlingo
- Consiglio Nazionale delle Ricerche, SPIN-CNR, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Mikhail Lisitskiy
- Consiglio Nazionale delle Ricerche, SPIN-CNR, Via Campi Flegrei 34, 80078 Pozzuoli, Italy.
| | - Maria Lepore
- Dipartimento di Medicina Sperimentale, Università della Campania "L. Vanvitelli", 80138 Naples, Italy.
| | - Marianna Portaccio
- Dipartimento di Medicina Sperimentale, Università della Campania "L. Vanvitelli", 80138 Naples, Italy.
| | - Daniela Montorio
- Dipt. di Neuroscienze e Scienze Riproduttive ed Odontostomatologiche, Universitá di Napoli 'Federico II', 80121 Naples, Italy.
| | - Salvatore Del Prete
- CISME-Centro Interdipartimentale di Microscopia Elettronica, Universitá di Napoli 'Federico II', 80100 Naples, Italy.
| | - Gilda Cennamo
- Dipt. di Sanitá Pubblica, Universitá di Napoli 'Federico II', 80131 Naples, Italy.
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Surface-Enhanced Raman Spectroscopy for Monitoring Extravirgin Olive Oil Bioactive Components. J CHEM-NY 2019. [DOI: 10.1155/2019/9537419] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Olive oil is the main fat source of the Mediterranean diet. This seasoning ingredient is highly appreciated for its unique taste, functional properties, and positive impact on human health. The determination of chemical composition is a demanding task in order to fully characterize this precious food product, ensure its quality, and prevent fraudulent practices. Among innovative techniques proposed for the oil analysis, surface-enhanced Raman spectroscopy (SERS) can be an extremely useful tool for olive oil characterization. In this frame, we have investigated five noncommercial olive oils produced in different parts of South Italy by using a commercial Raman microspectroscopy apparatus and home-made signal-enhancing SERS substrates. A wavelet-based data analysis has allowed us to efficiently remove the background and the noise from the acquired spectra. The analysis of these SERS spectra has enabled the quantification of the relative contents of carotene, oleic acid, and phenols. These relative contents differ in the examined samples. In addition, SERS response in the lipid region has indicated differences in the relative abundance of saturated fatty acids. The present results confirm the validity of the SERS technique as a rapid, nondestructive, and reliable analytical technique for identifying olive oil bioactive components.
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6
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Scattering-based optical techniques for olive oil characterization and quality control. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2018. [DOI: 10.1007/s11694-018-9933-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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7
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Sohail A, Khan S, Ullah R, Qureshi SA, Bilal M, Khan A. Analysis of hepatitis C infection using Raman spectroscopy and proximity based classification in the transformed domain. BIOMEDICAL OPTICS EXPRESS 2018; 9:2041-2055. [PMID: 29760968 PMCID: PMC5946769 DOI: 10.1364/boe.9.002041] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Revised: 03/17/2018] [Accepted: 03/19/2018] [Indexed: 05/25/2023]
Abstract
This work presents a diagnostic system for the hepatitis C infection using Raman spectroscopy and proximity based classification. The proposed method exploits transformed Raman spectra using the proximity based machine learning technique and is denoted as RS-PCA-Prox. First, Raman spectral data is baseline corrected by subtracting noise and low intensity background. After this, a feature transformation of Raman spectra is adopted, not only to reduce the feature's dimensionality but also to learn different deviations in Raman shifts. The proposed RS-PCA-Prox shows significant diagnostic power in terms of accuracy, sensitivity, and specificity as 95%, 0.97 and 0.94 in PCA based transformed domain. The comparison of the RS-PCA-Prox with linear and ensemble based classifiers shows that proximity based classification performs better for the discrimination of HCV infected individuals and is able to differentiate the infected individuals from normal ones on the basis of molecular spectral information. Furthermore, it is observed that characteristic spectral changes are due to variation in the intensity of lectin, chitin, lipids, ammonia and viral protein as a consequence of the HCV infection.
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Affiliation(s)
- Anabia Sohail
- Pattern Recognition Lab, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad, 45650, Pakistan
| | - Saranjam Khan
- Agri-biophotonics Laboratory, National Institute for Lasers & Optronics, Islamabad, Pakistan
| | - Rahat Ullah
- Agri-biophotonics Laboratory, National Institute for Lasers & Optronics, Islamabad, Pakistan
| | - Shahzad Ahmad Qureshi
- Pattern Recognition Lab, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad, 45650, Pakistan
| | - Muhammad Bilal
- Agri-biophotonics Laboratory, National Institute for Lasers & Optronics, Islamabad, Pakistan
- Department of Physics and Applied Mathematics, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad, 45650, Pakistan
| | - Asifullah Khan
- Pattern Recognition Lab, Pakistan Institute of Engineering and Applied Sciences (PIEAS), Nilore, Islamabad, 45650, Pakistan
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d'Apuzzo F, Perillo L, Delfino I, Portaccio M, Lepore M, Camerlingo C. Monitoring early phases of orthodontic treatment by means of Raman spectroscopies. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:1-10. [PMID: 29110445 DOI: 10.1117/1.jbo.22.11.115001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 10/12/2017] [Indexed: 05/06/2023]
Abstract
Gingival crevicular fluid (GCF) is a site-specific exudate in the gingival sulcus. GCF composition changes in response to diseases or mechanical stimuli, such as those occurring during orthodontic treatments. Raman microspectroscopy (μ-RS) and surface-enhanced Raman spectroscopy (SERS) were adopted for a GCF analysis during different initial phases of orthodontic force application. GCF samples were pooled from informed patients using paper cones. SERS spectra were obtained from GCF extracted from these cones, whereas μ-RS spectra were directly acquired on paper cones without any manipulation. The spectral characteristics of the main functional groups and the changes in cytochrome, amide III, and amide I contributions were highlighted in the different phases of orthodontic treatment with both SERS and μ-RS analysis. μ-RS directly performed on the paper cones together with proper statistical methods can offer an effective approach for the development of a tool for monitoring the processes occurring during orthodontic treatments, which may help the clinician in the choice of type of treatment individually for each patient and accelerate and improve the orthodontic therapy.
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Affiliation(s)
- Fabrizia d'Apuzzo
- Università degli Studi della Campania "Luigi Vanvitelli," Dipartimento Multidisciplinare di Speciali, Italy
| | - Letizia Perillo
- Università degli Studi della Campania "Luigi Vanvitelli," Dipartimento Multidisciplinare di Speciali, Italy
| | - Ines Delfino
- Università della Tuscia, Dipartimento di Scienze Ecologiche e Biologiche, Viterbo, Italy
| | - Marianna Portaccio
- Università degli Studi della Campania "Luigi Vanvitelli," Dipartimento di Medicina Sperimentale, Nap, Italy
| | - Maria Lepore
- Università degli Studi della Campania "Luigi Vanvitelli," Dipartimento di Medicina Sperimentale, Nap, Italy
| | - Carlo Camerlingo
- CNR-SPIN, Istituto Superconduttori, Materiali Innovativi e Dispositivi, Pozzuoli, Napoli, Italy
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9
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Camerlingo C, Portaccio M, Tatè R, Lepore M, Delfino I. Fructose and Pectin Detection in Fruit-Based Food Products by Surface-Enhanced Raman Spectroscopy. SENSORS 2017; 17:s17040839. [PMID: 28398254 PMCID: PMC5422200 DOI: 10.3390/s17040839] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/07/2017] [Accepted: 04/08/2017] [Indexed: 02/04/2023]
Abstract
Surface-Enhanced Raman Spectroscopy (SERS) enables the investigation of samples with weak specific Raman signals, such as opaque samples, including fruit juices and pulp. In this paper, biological apple juices and apple/pear pulp have been studied in order to evidence the presence of fructose and pectin, which are components of great relevance for quality assessment of these kinds of products. In order to perform SERS measurements a low-cost home-made substrate consisting of a glass slide decorated with 30-nm-sized gold nanoparticles has been designed and used. By employing a conventional micro-Raman spectroscopy set-up and a suitable data treatment based on "wavelet" denoising algorithms and background subtraction, spectra of pectin and fructose with clear Raman features have been obtained. The results have confirmed the potential of SERS in the food industry for product characterization, also considering the low-cost and the relative ease of the fabrication process of the employed SERS substrate.
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Affiliation(s)
- Carlo Camerlingo
- CNR-SPIN, Istituto Superconduttori, Materiali Innovativi e Dispositivi, 80078 Pozzuoli (Na), Italy.
| | - Marianna Portaccio
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", 80138 Naples, Italy.
| | - Rosarita Tatè
- Institute of Genetics and Biophysics-ABT, CNR, 80131 Naples, Italy.
| | - Maria Lepore
- Dipartimento di Medicina Sperimentale, Università della Campania "Luigi Vanvitelli", 80138 Naples, Italy.
| | - Ines Delfino
- Dipartimento di Scienze Ecologiche e Biologiche, Università della Tuscia, 01100 Viterbo, Italy.
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Delfino I, Perna G, Lasalvia M, Capozzi V, Manti L, Camerlingo C, Lepore M. Visible micro-Raman spectroscopy of single human mammary epithelial cells exposed to x-ray radiation. JOURNAL OF BIOMEDICAL OPTICS 2015; 20:035003. [PMID: 25769498 DOI: 10.1117/1.jbo.20.3.035003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Accepted: 02/24/2015] [Indexed: 05/06/2023]
Abstract
A micro-Raman spectroscopy investigation has been performed in vitro on single human mammary epithelial cells after irradiation by graded x-ray doses. The analysis by principal component analysis (PCA) and interval-PCA (i-PCA) methods has allowed us to point out the small differences in the Raman spectra induced by irradiation. This experimental approach has enabled us to delineate radiation-induced changes in protein, nucleic acid, lipid, and carbohydrate content. In particular, the dose dependence of PCA and i-PCA components has been analyzed. Our results have confirmed that micro-Raman spectroscopy coupled to properly chosen data analysis methods is a very sensitive technique to detect early molecular changes at the single-cell level following exposure to ionizing radiation. This would help in developing innovative approaches to monitor radiation cancer radiotherapy outcome so as to reduce the overall radiation dose and minimize damage to the surrounding healthy cells, both aspects being of great importance in the field of radiation therapy.
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Affiliation(s)
- Ines Delfino
- Università della Tuscia, Dipartimento di Scienze Ecologiche e Biologiche, Largo dell'Università snc, Viterbo 01100, Italy
| | - Giuseppe Perna
- Università di Foggia, Dipartimento di Medicina Clinica e Sperimentale, Viale Pinto 1, Foggia 71122, Italy
| | - Maria Lasalvia
- Università di Foggia, Dipartimento di Medicina Clinica e Sperimentale, Viale Pinto 1, Foggia 71122, Italy
| | - Vito Capozzi
- Università di Foggia, Dipartimento di Medicina Clinica e Sperimentale, Viale Pinto 1, Foggia 71122, Italy
| | - Lorenzo Manti
- Università "Federico II," Dipartimento di Fisica, Via Cintia, Napoli 80126, Italy
| | - Carlo Camerlingo
- Consiglio Nazionale delle Ricerche, CNR-SPIN, UdR di Napoli, Via Campi Flegrei 34, Pozzuoli 80078, Italy
| | - Maria Lepore
- Seconda Università di Napoli, Dipartimento di Medicina Sperimentale, Via S.M. Costantinopoli 16, Napoli 80134, Italy
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11
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Camerlingo C, d'Apuzzo F, Grassia V, Perillo L, Lepore M. Micro-Raman spectroscopy for monitoring changes in periodontal ligaments and gingival crevicular fluid. SENSORS 2014; 14:22552-63. [PMID: 25436655 PMCID: PMC4299027 DOI: 10.3390/s141222552] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 11/08/2014] [Accepted: 11/20/2014] [Indexed: 11/24/2022]
Abstract
Micro-Raman Spectroscopy is an efficient method for analyzing biological specimens due to its sensitivity to subtle chemical and structural changes. The aim of this study was to use micro-Raman spectroscopy to analyze chemical and structural changes in periodontal ligament after orthodontic force application and in gingival crevicular fluid in presence of periodontal disease. The biopsy of periodontal ligament samples of premolars extracted for orthodontic reasons and the gingival crevicular fluid samples collected by using absorbent paper cones; were analyzed by micro-Raman spectroscopy. Changes of the secondary protein structure related to different times of orthodontic force application were reported; whereas an increase of carotene was revealed in patients affected by periodontal inflammation.
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Affiliation(s)
- Carlo Camerlingo
- CNR-SPIN, Istituto Superconduttori, Materiali Innovativi e Dispositivi, via Campi Flegrei 34, Pozzuoli 80078, Italy.
| | - Fabrizia d'Apuzzo
- Dip. Multidisciplinare di Specialità Medico-Chirurgiche e Odontoiatriche, Seconda Università di Napoli, via L. De Crecchio 6, Napoli 80138, Italy.
| | - Vincenzo Grassia
- Dip. Multidisciplinare di Specialità Medico-Chirurgiche e Odontoiatriche, Seconda Università di Napoli, via L. De Crecchio 6, Napoli 80138, Italy.
| | - Letizia Perillo
- Dip. Multidisciplinare di Specialità Medico-Chirurgiche e Odontoiatriche, Seconda Università di Napoli, via L. De Crecchio 6, Napoli 80138, Italy.
| | - Maria Lepore
- Dip. di Medicina Sperimentale, Seconda Università di Napoli, S. Maria di Costantinopoli 16, Napoli 80138, Italy.
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Maier V, Lefter CM, Maier SS, Butnaru M, Danu M, Ibanescu C, Popa M, Desbrieres J. Property peculiarities of the atelocollagen–hyaluronan conjugates crosslinked with a short chain di-oxirane compound. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 42:243-53. [DOI: 10.1016/j.msec.2014.05.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2013] [Revised: 02/27/2014] [Accepted: 05/06/2014] [Indexed: 10/25/2022]
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13
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Camerlingo C, Delfino I, Perna G, Capozzi V, Lepore M. Micro-Raman spectroscopy and univariate analysis for monitoring disease follow-up. SENSORS 2011; 11:8309-22. [PMID: 22164077 PMCID: PMC3231482 DOI: 10.3390/s110908309] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 08/17/2011] [Accepted: 08/18/2011] [Indexed: 11/16/2022]
Abstract
Micro-Raman spectroscopy is a very promising tool for medical applications, thanks to its sensitivity to subtle changes in the chemical and structural characteristics of biological specimens. To fully exploit these promises, building a method of data analysis properly suited for the case under study is crucial. Here, a linear or univariate approach using a R2 determination coefficient is proposed for discriminating Raman spectra even with small differences. The validity of the proposed approach has been tested using Raman spectra of high purity glucose solutions collected in the 600 to 1,600 cm(-1) region and also from solutions with two known solutes at different concentrations. After this validation step, the proposed analysis has been applied to Raman spectra from oral human tissues affected by Pemphigus Vulgaris (PV), a rare life-threatening autoimmune disease, for monitoring disease follow-up. Raman spectra have been obtained in the wavenumber regions from 1,050 to 1,700 cm(-1) and 2,700 to 3,200 cm(-1) from tissues of patients at different stages of pathology (active PV, under therapy and PV in remission stage) as confirmed by histopathological and immunofluorescence analysis. Differences in the spectra depending on tissue illness stage have been detected at 1,150-1,250 cm(-1) (amide III) and 1,420-1,450 cm(-1) (CH3 deformation) regions and around 1,650 cm(-1) (amide I) and 2,930 cm(-1) (CH3 symmetric stretch). The analysis of tissue Raman spectra by the proposed univariate method has allowed us to effectively differentiate tissues at different stages of pathology.
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Affiliation(s)
- Carlo Camerlingo
- CNR (Consiglio Nazionale delle Ricerche), Istituto di Cibernetica “E. Caianiello”, 80078, Pozzuoli, Italy; E-Mail:
| | - Ines Delfino
- Biophysics and Nanoscience Centre, CNISM, Facoltà di Scienze, Università della Tuscia, 01100, Viterbo, Italy; E-Mail:
| | - Giuseppe Perna
- Dipartimento di Scienze Biomediche, Università di Foggia, 71100, Foggia, Italy; E-Mails: (G.P.); (V.C.)
| | - Vito Capozzi
- Dipartimento di Scienze Biomediche, Università di Foggia, 71100, Foggia, Italy; E-Mails: (G.P.); (V.C.)
| | - Maria Lepore
- Dipartimento di Medicina Sperimentale, Seconda Università di Napoli, 81100, Naples, Italy
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-081-566-5839; Fax: +39-081-566-7500
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In vivo molecular evaluation of guinea pig skin incisions healing after surgical suture and laser tissue welding using Raman spectroscopy. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2009; 96:178-83. [PMID: 19581109 DOI: 10.1016/j.jphotobiol.2009.06.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2009] [Revised: 06/09/2009] [Accepted: 06/10/2009] [Indexed: 11/24/2022]
Abstract
The healing process in guinea pig skin following surgical incisions was evaluated at the molecular level, in vivo, by the use of Raman spectroscopy. After the incisions were closed either by suturing or by laser tissue welding (LTW), differences in the respective Raman spectra were identified. The study determined that the ratio of the Raman peaks of the amide III (1247 cm(-1)) band to a peak at 1326 cm(-1) (the superposition of elastin and keratin bands) can be used to evaluate the progression of wound healing. Conformational changes in the amide I band (1633-1682 cm(-1)) and spectrum changes in the range of 1450-1520 cm(-1) were observed in LTW and sutured skin. The stages of the healing process of the guinea pig skin following LTW and suturing were evaluated by Raman spectroscopy, using histopathology as the gold standard. LTW skin demonstrated better healing than sutured skin, exhibiting minimal hyperkeratosis, minimal collagen deposition, near-normal surface contour, and minimal loss of dermal appendages. A wavelet decomposition-reconstruction baseline correction algorithm was employed to remove the fluorescence wing from the Raman spectra.
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