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Escobar-Huertas JF, Vaca-González JJ, Garzón-Alvarado DA, Trabelsi O. Effect of iodixanol and propylene glycol as clearing agents in extensor digitorum longus and soleus muscles: mechanical and morphological characterization using the optical coherence tomography technique. Biomater Sci 2024. [PMID: 39247977 DOI: 10.1039/d4bm00207e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/10/2024]
Abstract
Soft tissue engineering and regenerative medicine aim to address the intricate relationship between tissue architecture and biomechanical performance. The traditional technique used to analyze muscular architectures is histology. However, optical coherence tomography is a novel non-destructive, non-invasive imaging tool that provides real-time, high-resolution visualization of tissue microstructure, making it applicable to soft tissues. High-quality images, minimized light scattering, and different clearing agents, such as propylene glycol and iodixanol, have been employed. A stress-relaxation test was performed to characterize the effects of clearing agents on rat extensor digitorum longus and soleus muscles. Additionally, muscle fiber structure images obtained using optical correlation tomography were compared with histological images to corroborate the high precision of the optical method. The results showed that iodixanol is a promising clearing agent for characterizing muscles as it provides good quality images and a satisfactory reversibility process with no permanent damage to the extracellular matrix or muscle fiber structure of the tissue.
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Affiliation(s)
- J F Escobar-Huertas
- Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogotá, Colombia
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de Recherche Royallieu, CS 60319 - 60203 Compiègne Cedex, France.
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - J J Vaca-González
- Escuela de pregrado, Dirección Académica, Vicerrectoría de Sede, Universidad Nacional de Colombia, Sede la Paz, Cesar, Colombia
| | - D A Garzón-Alvarado
- Numerical Methods and Modeling Research Group (GNUM), Universidad Nacional de Colombia, Bogotá, Colombia
- Biomimetics Laboratory, Instituto de Biotecnología, Universidad Nacional de Colombia, Bogotá, Colombia
| | - Olfa Trabelsi
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de Recherche Royallieu, CS 60319 - 60203 Compiègne Cedex, France.
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2
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Maillet M, Kammoun M, Avril S, Ho Ba Tho MC, Trabelsi O. Non-destructive Characterization of Skeletal Muscle Extracellular Matrix Morphology by Combining Optical Coherence Tomography (OCT) Imaging with Tissue Clearing. Ann Biomed Eng 2023; 51:2323-2336. [PMID: 37310491 DOI: 10.1007/s10439-023-03274-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 06/01/2023] [Indexed: 06/14/2023]
Abstract
Histology is an essential step to visualize and analyze the microstructure of any biological tissue; however, histological processing is often irreversible, and histological samples are unable to be imaged or tested further. In this work, a novel non-destructive protocol is proposed for morphological analysis of skeletal muscles, combining Optical Coherence Tomography (OCT) imaging with Tissue Clearing. Imaging combining OCT and Propylene Glycol (PG) as a tissue-clearing agent, was performed on rat tail and extensor digitorum longus (EDL) muscle. The results show that the extracellular matrix morphology of skeletal muscles, including muscular fibers and the whole microstructure architecture were clearly identified. PG improved OCT imaging as measured by image quality metric Contrast Per Pixel CPP (increases by 3.9%), Naturalness Image Quality Evaluator NIQE (decreases by 23%), and Volume of Interest VOI size (higher for CPP and lower for NIQE values). The tendon microstructure was observed with less precision, as collagen fibers could not be clearly detected. The reversibility of the optical effects of the PG on the immersed tissue (in a Phosphate-Buffered Saline solution) was studied comparing native and rehydrated OCT image acquisition from a single EDL sample. Optical properties and microstructure visibility (CPP and NIQE) have been recovered to 99% of the native sample values. Moreover, clearing process caused shrinkage of the tissue recovered to 86% of the original width. Future work will aim to employ the proposed experimental protocol to identify the local mechanical properties of biological tissues.
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Affiliation(s)
- Maxence Maillet
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu, CS 60319, 60203, Compiègne Cedex, France
| | - Malek Kammoun
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu, CS 60319, 60203, Compiègne Cedex, France
| | - Stéphane Avril
- Mines Saint-Etienne, Univ Jean Monnet Saint-Etienne, Inserm, U 1059 Sainbiose, 42023, Saint-Etienne, France
| | - Marie-Christine Ho Ba Tho
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu, CS 60319, 60203, Compiègne Cedex, France
| | - Olfa Trabelsi
- Université de technologie de Compiègne, CNRS, Biomechanics and Bioengineering, Centre de recherche Royallieu, CS 60319, 60203, Compiègne Cedex, France.
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3
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Martins IS, Silva HF, Lazareva EN, Chernomyrdin NV, Zaytsev KI, Oliveira LM, Tuchin VV. Measurement of tissue optical properties in a wide spectral range: a review [Invited]. BIOMEDICAL OPTICS EXPRESS 2023; 14:249-298. [PMID: 36698664 PMCID: PMC9841994 DOI: 10.1364/boe.479320] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2022] [Revised: 11/29/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
A distinctive feature of this review is a critical analysis of methods and results of measurements of the optical properties of tissues in a wide spectral range from deep UV to terahertz waves. Much attention is paid to measurements of the refractive index of biological tissues and liquids, the knowledge of which is necessary for the effective application of many methods of optical imaging and diagnostics. The optical parameters of healthy and pathological tissues are presented, and the reasons for their differences are discussed, which is important for the discrimination of pathologies and the demarcation of their boundaries. When considering the interaction of terahertz radiation with tissues, the concept of an effective medium is discussed, and relaxation models of the effective optical properties of tissues are presented. Attention is drawn to the manifestation of the scattering properties of tissues in the THz range and the problems of measuring the optical properties of tissues in this range are discussed. In conclusion, a method for the dynamic analysis of the optical properties of tissues under optical clearing using an application of immersion agents is presented. The main mechanisms and technologies of optical clearing, as well as examples of the successful application for differentiation of healthy and pathological tissues, are analyzed.
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Affiliation(s)
- Inês S. Martins
- Center for Innovation in Engineering and Industrial Technology, ISEP, Porto, Portugal
| | - Hugo F. Silva
- Porto University, School of Engineering, Porto, Portugal
| | - Ekaterina N. Lazareva
- Science Medical Center, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
| | | | - Kirill I. Zaytsev
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Luís M. Oliveira
- Physics Department, Polytechnic of Porto – School of Engineering (ISEP), Porto, Portugal
- Institute for Systems and Computer Engineering, Technology and Science (INESC TEC), Porto, Portugal
| | - Valery V. Tuchin
- Science Medical Center, Saratov State University, Saratov, Russia
- Laboratory of Laser Molecular Imaging and Machine Learning, Tomsk State University, Tomsk, Russia
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4
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Jaafar A, Darvin ME, Tuchin VV, Veres M. Confocal Raman Micro-Spectroscopy for Discrimination of Glycerol Diffusivity in Ex Vivo Porcine Dura Mater. Life (Basel) 2022; 12:1534. [PMID: 36294969 PMCID: PMC9605590 DOI: 10.3390/life12101534] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 08/27/2022] [Accepted: 09/26/2022] [Indexed: 11/16/2022] Open
Abstract
Dura mater (DM) is a connective tissue with dense collagen, which is a protective membrane surrounding the human brain. The optical clearing (OC) method was used to make DM more transparent, thereby allowing to increase in-depth investigation by confocal Raman micro-spectroscopy and estimate the diffusivity of 50% glycerol and water migration. Glycerol concentration was obtained, and the diffusion coefficient was calculated, which ranged from 9.6 × 10-6 to 3.0 × 10-5 cm2/s. Collagen-related Raman band intensities were significantly increased for all depths from 50 to 200 µm after treatment. In addition, the changes in water content during OC showed that 50% glycerol induces tissue dehydration. Weakly and strongly bound water types were found to be most concentrated, playing a major role in the glycerol-induced water flux and OC. Results show that OC is an efficient method for controlling the DM optical properties, thereby enhancing the in-depth probing for laser therapy and diagnostics of the brain. DM is a comparable to various collagen-containing tissues and organs, such as sclera of eyes and skin dermis.
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Affiliation(s)
- Ali Jaafar
- Institute for Solid State Physics and Optics, Wigner Research Center for Physics, H-1525 Budapest, Hungary
- Institute of Physics, University of Szeged, Dom ter 9, H-6720 Szeged, Hungary
- Ministry of Higher Education and Scientific Research, Baghdad 10065, Iraq
| | - Maxim E. Darvin
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Valery V. Tuchin
- Science Medical Center, Saratov State University, 83 Astrakhanskaya Str., 410012 Saratov, Russia
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control, FRC “Saratov Scientific Centre of the Russian Academy of Sciences”, 24 Rabochaya Str., 410028 Saratov, Russia
- A.N. Bach Institute of Biochemistry, FRC “Biotechnology of the Russian Academy of Sciences”, 33-2 Leninsky Prospect, 119071 Moscow, Russia
| | - Miklós Veres
- Institute for Solid State Physics and Optics, Wigner Research Center for Physics, H-1525 Budapest, Hungary
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5
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Song J, Zeng N, Guo W, Guo J, Ma H. Stokes polarization imaging applied for monitoring dynamic tissue optical clearing. BIOMEDICAL OPTICS EXPRESS 2021; 12:4821-4836. [PMID: 34513227 PMCID: PMC8407829 DOI: 10.1364/boe.426653] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/09/2021] [Accepted: 06/28/2021] [Indexed: 05/09/2023]
Abstract
We propose a continuous Stokes imaging system with a refresh rate of several seconds, instead of a traditional Mueller measurement setup, to quickly track the microstructural changes of tissues during the optical clearing process. The effectiveness of this fast Stokes imaging applied in monitoring the dynamic process is first validated by three designed experiments with a polarization state that changes continuously and rapidly, and is further confirmed by gradual changes in polarization image contrast and resolution with clearing. By comparison with experiments from different tissue samples with the same agent, the fast Stokes response curve can improve the analysis ability of photon polarization behavior connected with the complicated changes of tissue characteristics.
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Affiliation(s)
- Jiawei Song
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
- Tsinghua University, Department of Physics, 1 Tsinghua Yuan, Beijing 100084, China
| | - Nan Zeng
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Wei Guo
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
- Tsinghua University, Department of Biomedical Engineering, 1 Tsinghua Yuan, Beijing 100084, China
| | - Jun Guo
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
| | - Hui Ma
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China
- Tsinghua University, Department of Physics, 1 Tsinghua Yuan, Beijing 100084, China
- Center for Precision Medicine and Healthcare, Tsinghua-Berkeley Shenzhen Institute, Shenzhen, 518071, China
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6
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Tuchina DK, Meerovich IG, Sindeeva OA, Zherdeva VV, Savitsky AP, Bogdanov AA, Tuchin VV. Magnetic resonance contrast agents in optical clearing: Prospects for multimodal tissue imaging. JOURNAL OF BIOPHOTONICS 2020; 13:e201960249. [PMID: 32687263 DOI: 10.1002/jbio.201960249] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2019] [Revised: 07/12/2020] [Accepted: 07/13/2020] [Indexed: 06/11/2023]
Abstract
Skin optical clearing effect ex vivo and in vivo was achieved by topical application of low molecular weight paramagnetic magnetic resonance contrast agents. This novel feature has not been explored before. By using collimated transmittance the diffusion coefficients of three clinically used magnetic resonance contrast agents, that is Gadovist, Magnevist and Dotarem as well as X-ray contrast agent Visipaque in mouse skin were determined ex vivo as (4.29 ± 0.39) × 10-7 cm2 /s, (5.00 ± 0.72) × 10-7 cm2 /s, (3.72 ± 0.67) × 10-7 cm2 /s and (1.64 ± 0.18) × 10-7 cm2 /s, respectively. The application of gadobutrol (Gadovist) resulted in efficient optical clearing that in general, was superior to other contrast agents tested and allowed to achieve: (a) more than 12-fold increase of transmittance over 10 minutes after application ex vivo; (b) markedly improved images of skin architecture obtained with optical coherence tomography; (c) an increase of the fluorescence intensity/background ratio in TagRFP-red fluorescent marker protein expressing tumor by five times after 15 minutes application into the skin in vivo. The obtained results have immediate implications for multimodality imaging because many contrast agents are capable of simultaneously enhancing the contrast of multiple imaging modalities.
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Affiliation(s)
- Daria K Tuchina
- Saratov State University, Saratov, Russia
- Tomsk State University, Tomsk, Russia
- А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Irina G Meerovich
- А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | | | - Victoria V Zherdeva
- А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Alexander P Savitsky
- А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
| | - Alexei A Bogdanov
- А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
- University of Massachusetts Medical School, Worcester, Massachusetts, USA
- Department of Bioengineering and Bioinformatics, Moscow State University, Moscow, Russia
| | - Valery V Tuchin
- Saratov State University, Saratov, Russia
- Tomsk State University, Tomsk, Russia
- А.N. Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
- Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russia
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7
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Carneiro I, Carvalho S, Henrique R, Oliveira L, Tuchin V. Moving tissue spectral window to the deep-ultraviolet via optical clearing. JOURNAL OF BIOPHOTONICS 2019; 12:e201900181. [PMID: 31465137 DOI: 10.1002/jbio.201900181] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 07/25/2019] [Accepted: 08/28/2019] [Indexed: 06/10/2023]
Abstract
The optical immersion clearing technique has been successfully applied through the last 30 years in the visible to near infrared spectral range, and has proven to be a promising method to promote the application of optical technologies in clinical practice. To investigate its potential in the ultraviolet range, collimated transmittance spectra from 200 to 1000 nm were measured from colorectal muscle samples under treatment with glycerol-water solutions. The treatments created two new optical windows with transmittance efficiency peaks at 230 and 300 nm, with magnitude increasing with glycerol concentration in the treating solution. Such discovery opens the opportunity to develop clinical procedures to perform diagnosis or treatments in the ultraviolet.
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Affiliation(s)
- Isa Carneiro
- Department of Pathology and Cancer Biology, and Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - Sónia Carvalho
- Department of Pathology and Cancer Biology, and Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto, Porto, Portugal
| | - Rui Henrique
- Department of Pathology and Cancer Biology, and Epigenetics Group - Research Center, Portuguese Oncology Institute of Porto, Porto, Portugal
- Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar - University of Porto (ICBAS-UP), Porto, Portugal
| | - Luís Oliveira
- Physics Department - Polytechnic Institute of Porto, School of Engineering, Porto, Portugal
- Centre of Innovation in Engineering and Industrial Technology (CIETI), School of Engineering, Polytechnic of Porto, Porto, Portugal
| | - Valery Tuchin
- Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russian Federation
- Interdisciplinary Laboratory of Biophotonics, Tomsk State University, Tomsk, Russian Federation
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russian Federation
- Laboratory of Molecular Imaging, Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russian Federation
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8
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Lopez AL, Larina IV. Second harmonic generation microscopy of early embryonic mouse hearts. BIOMEDICAL OPTICS EXPRESS 2019; 10:2898-2908. [PMID: 31259060 PMCID: PMC6583332 DOI: 10.1364/boe.10.002898] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 05/15/2019] [Accepted: 05/16/2019] [Indexed: 05/15/2023]
Abstract
The understanding of biomechanical regulation of early heart development in genetic mouse models can contribute to improved management of congenital cardiovascular defects and embryonic cardiac failures in humans. The extracellular matrix (ECM), and particularly fibrillar collagen, are central to heart biomechanics, regulating tissue strength, elasticity and contractility. Here, we explore second harmonic generation (SHG) microscopy for visualization of establishing cardiac fibers such as collagen in mouse embryos through the earliest stages of development. We detected significant increase in SHG positive fibrillar content and organization over the first 24 hours after initiation of contractions. SHG microscopy revealed regions of higher fibrillar organization in regions of higher contractility and reduced fibrillar content and organization in mouse Mlc2a model with cardiac contractility defect, suggesting regulatory role of mechanical load in production and organization of structural fibers from the earliest stages. Simultaneous volumetric SHG and two-photon excitation microscopy of vital fluorescent reporter EGFP in the heart was demonstrated. In summary, these data set SHG microscopy as a valuable non-bias imaging tool to investigate mouse embryonic cardiogenesis and biomechanics.
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Affiliation(s)
- Andrew L. Lopez
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
| | - Irina V. Larina
- Department of Molecular Physiology and Biophysics, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA
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9
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Sdobnov AY, Darvin ME, Schleusener J, Lademann J, Tuchin VV. Hydrogen bound water profiles in the skin influenced by optical clearing molecular agents-Quantitative analysis using confocal Raman microscopy. JOURNAL OF BIOPHOTONICS 2019; 12:e201800283. [PMID: 30565427 DOI: 10.1002/jbio.201800283] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 12/14/2018] [Accepted: 12/17/2018] [Indexed: 05/21/2023]
Abstract
Confocal Raman microscopy has been used to measure depth-dependent profiles of porcine skin ex vivo in the high wavenumber region after application of molecular optical clearing agents (OCAs). Glycerol (70%) and iohexol (100% Omnipaque [300]) water solutions were used as OCAs and topically applied to porcine ear skin for 30 and 60 minutes. Using Gaussian function-based deconvolution, the changes of hydrogen bound water molecule types have been microscopically analyzed down to the depth of 200 μm. Results show that both OCAs induced skin dehydration (reduction of total water), which is 51.3% for glycerol (60 minutes), 33.1% for glycerol (30 minutes), 8.3% for Omnipaque (60 minutes) and 4.4% for Omnipaque (30 minutes), on average for the 40 to 200 μm depths. Among the water types in the skin, the following reduction was observed in concentration of weakly bound (51.1%, 33.2%, 7.5% and 4.6%), strongly bound (50.4%, 33.0%, 7.9% and 3.4%), tightly bound (63.6%, 42.3%, 26.1% and 12.9%) and unbound (55.4%, 28.7%, 10.1% and 5.9%) water types on average for the 40 to 200 μm depths, post application of glycerol (60 minutes), glycerol (30 minutes), Omnipaque (60 minutes) and Omnipaque (30 minutes), respectively. As most concentrated in the skin, weakly and strongly bound water types are preferentially involved in the OCA-induced water flux in the skin, and thus, are responsible for optical clearing efficiency.
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Affiliation(s)
- Anton Y Sdobnov
- Faculty of Information Technology and Electrical Engineering, University of Oulu, Oulu, Finland
- Department of Optics and Biophotonics, Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
| | - Maxim E Darvin
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Johannes Schleusener
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Jürgen Lademann
- Center of Experimental and Applied Cutaneous Physiology, Department of Dermatology, Venerology and Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Berlin, Germany
| | - Valery V Tuchin
- Department of Optics and Biophotonics, Research-Educational Institute of Optics and Biophotonics, Saratov State University, Saratov, Russia
- Laboratory of Laser Diagnostics of Technical and Living Systems, Institute of Precision Mechanics and Control of RAS, Saratov, Russia
- Interdisciplinary Laboratory of Biophotonics, Tomsk State University, Tomsk, Russia
- Laboratory of Molecular Imaging, Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, Moscow, Russia
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10
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Kim JH, Jang MJ, Choi J, Lee E, Song KD, Cho J, Kim KT, Cha HJ, Sun W. Optimizing tissue-clearing conditions based on analysis of the critical factors affecting tissue-clearing procedures. Sci Rep 2018; 8:12815. [PMID: 30143733 PMCID: PMC6109102 DOI: 10.1038/s41598-018-31153-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/13/2018] [Indexed: 11/13/2022] Open
Abstract
Tissue-clearing techniques have received great attention for volume imaging and for the potential to be applied in optical diagnosis. In principle, tissue clearing is achieved by reducing light scattering through a combination of lipid removal, size change, and matching of the refractive index (RI) between the imaging solution and the tissue. However, the contributions of these major factors in tissue clearing have not been systematically evaluated yet. In this study, we experimentally measured and mathematically calculated the contribution of these factors to the clearing of four organs (brain, liver, kidney, and lung). We found that these factors differentially influence the maximal clearing efficacy of tissues and the diffusivity of materials inside the tissue. We propose that these physical properties of organs can be utilized for the quality control (Q/C) process during tissue clearing, as well as for the monitoring of the pathological changes of tissues.
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Affiliation(s)
- June Hoan Kim
- Department of Anatomy, Korea University College of Medicine, Seoul, 02841, Republic of Korea
| | - Min Jee Jang
- Department of Anatomy, Korea University College of Medicine, Seoul, 02841, Republic of Korea
| | - Jungyoon Choi
- Department of Anatomy, Korea University College of Medicine, Seoul, 02841, Republic of Korea
| | - Eunsoo Lee
- Department of Anatomy, Korea University College of Medicine, Seoul, 02841, Republic of Korea
| | - Kyung-Deok Song
- Department of Physics, Korea University, Seoul, 02841, Republic of Korea
- Center for Molecular Spectroscopy and Dynamics, Institute for Basic Science (IBS), Seoul, 02841, Republic of Korea
| | - Jaeho Cho
- Department of Radiation Oncology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea
| | - Keun-Tae Kim
- Department of Life Science, Sogang University, 35th Baekbum-ro Mapo-gu, Seoul, 04107, Republic of Korea
| | - Hyuk-Jin Cha
- College of Pharmacy, Department of Pharmacy, Seoul National University, Gwanak-ro, Gwanak-gu, Seoul, 08826, Republic of Korea
| | - Woong Sun
- Department of Anatomy, Korea University College of Medicine, Seoul, 02841, Republic of Korea.
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11
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Bashkatov AN, Berezin KV, Dvoretskiy KN, Chernavina ML, Genina EA, Genin VD, Kochubey VI, Lazareva EN, Pravdin AB, Shvachkina ME, Timoshina PA, Tuchina DK, Yakovlev DD, Yakovlev DA, Yanina IY, Zhernovaya OS, Tuchin VV. Measurement of tissue optical properties in the context of tissue optical clearing. JOURNAL OF BIOMEDICAL OPTICS 2018; 23:1-31. [PMID: 30141286 DOI: 10.1117/1.jbo.23.9.091416] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 07/30/2018] [Indexed: 05/05/2023]
Abstract
Nowadays, dynamically developing optical (photonic) technologies play an ever-increasing role in medicine. Their adequate and effective implementation in diagnostics, surgery, and therapy needs reliable data on optical properties of human tissues, including skin. This paper presents an overview of recent results on the measurements and control of tissue optical properties. The issues reported comprise a brief review of optical properties of biological tissues and efficacy of optical clearing (OC) method in application to monitoring of diabetic complications and visualization of blood vessels and microcirculation using a number of optical imaging technologies, including spectroscopic, optical coherence tomography, and polarization- and speckle-based ones. Molecular modeling of immersion OC of skin and specific technique of OC of adipose tissue by its heating and photodynamic treatment are also discussed.
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Affiliation(s)
- Alexey N Bashkatov
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
- Tomsk State University, Interdisciplinary Laboratory of Biophotonics, Tomsk, Russia
| | - Kirill V Berezin
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
| | - Konstantin N Dvoretskiy
- Saratov State Medical University, Subdivision of Medical and Biological Physics, Saratov, Russia
| | - Maria L Chernavina
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
| | - Elina A Genina
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
- Tomsk State University, Interdisciplinary Laboratory of Biophotonics, Tomsk, Russia
| | - Vadim D Genin
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
| | - Vyacheslav I Kochubey
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
- Tomsk State University, Interdisciplinary Laboratory of Biophotonics, Tomsk, Russia
| | - Ekaterina N Lazareva
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
- Tomsk State University, Interdisciplinary Laboratory of Biophotonics, Tomsk, Russia
- Immanuel Kant Baltic Federal University, Center for Functionalized Magnetic Materials, Kaliningrad, Russia
| | - Alexander B Pravdin
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
| | - Marina E Shvachkina
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
| | - Polina A Timoshina
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
- Tomsk State University, Interdisciplinary Laboratory of Biophotonics, Tomsk, Russia
| | - Daria K Tuchina
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
- Tomsk State University, Interdisciplinary Laboratory of Biophotonics, Tomsk, Russia
- Prokhorov General Physics Institute of the Russian Academy of Sciences, Moscow, Russia
| | - Dmitry D Yakovlev
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
| | - Dmitry A Yakovlev
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
| | - Irina Yu Yanina
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
- Tomsk State University, Interdisciplinary Laboratory of Biophotonics, Tomsk, Russia
| | - Olga S Zhernovaya
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
| | - Valery V Tuchin
- Saratov State University, Research-Educational Institute of Optics and Biophotonics, Saratov, Russia
- Tomsk State University, Interdisciplinary Laboratory of Biophotonics, Tomsk, Russia
- Institute of Precision Mechanics and Control of the Russian Academy of Sciences, Saratov, Russia
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Yanina IY, Lazareva EN, Tuchin VV. Refractive index of adipose tissue and lipid droplet measured in wide spectral and temperature ranges. APPLIED OPTICS 2018; 57:4839-4848. [PMID: 30118111 DOI: 10.1364/ao.57.004839] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 05/06/2018] [Indexed: 06/08/2023]
Abstract
This study presents refractive index measurements of human and porcine adipose tissues and lipid droplet content in the visible and near-infrared. The coefficients of the Sellmeier formula were calculated for approximation of tissue dispersion. For the first time, to the best of our knowledge, the phase transition temperatures and temperature increments dn/dT of adipose tissue were quantified for a wide wavelength range from 480 to 1550 nm and from room temperature up to 50°C. For human abdominal adipose tissue, the refractive index increment averaged across all wavelengths is dn/dT=-(3.54±0.15)×10-4°C-1, for porcine tissue dn/dT=-7.92(0.74)×10-4°C-1, and for porcine lipid droplet dn/dT=-6.01(0.29)×10-4°C-1. Data available in literature for refractive indices of adipose tissues measured by different techniques are summarized and compared with the received data.
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13
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Carneiro I, Carvalho S, Henrique R, Oliveira L, Tuchin VV. Simple multimodal optical technique for evaluation of free/bound water and dispersion of human liver tissue. JOURNAL OF BIOMEDICAL OPTICS 2017; 22:1-10. [PMID: 29210219 DOI: 10.1117/1.jbo.22.12.125002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Accepted: 11/15/2017] [Indexed: 05/22/2023]
Abstract
The optical dispersion and water content of human liver were experimentally studied to estimate the optical dispersions of tissue scatterers and dry matter. Using temporal measurements of collimated transmittance [Tc(t)] of liver samples under treatment at different glycerol concentrations, free water and diffusion coefficient (Dgl) of glycerol in liver were found as 60.0% and 8.2×10-7 cm2/s, respectively. Bound water was calculated as the difference between the reported total water of 74.5% and found free water. The optical dispersion of liver was calculated from the measurements of refractive index (RI) of tissue samples made for different wavelengths between 400 and 1000 nm. Using liver and water optical dispersions at 20°C and the free and total water, the dispersions for liver scatterers and dry matter were calculated. The estimated dispersions present a decreasing behavior with wavelength. The dry matter dispersion shows higher RI values than liver scatterers, as expected. Considering 600 nm, dry matter has an RI of 1.508, whereas scatterers have an RI of 1.444. These dispersions are useful to characterize the RI matching mechanism in optical clearing treatments, provided that [Tc(t)] and thickness measurements are performed during treatment. The knowledge of Dgl is also important for living tissue cryoprotection applications.
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Affiliation(s)
- Isa Carneiro
- Portuguese Oncology Institute of Porto, Department of Pathology and Cancer Biology and Epigenetics G, Portugal
| | - Sónia Carvalho
- Portuguese Oncology Institute of Porto, Department of Pathology and Cancer Biology and Epigenetics G, Portugal
| | - Rui Henrique
- Portuguese Oncology Institute of Porto, Department of Pathology and Cancer Biology and Epigenetics G, Portugal
- Institute of Biomedical Sciences Abel Salazar-University of Porto, Department of Pathology and Molec, Portugal
| | - Luís Oliveira
- Polytechnic of Porto, School of Engineering, Department of Physics, Porto, Portugal
- Centre of Innovation in Engineering and Industrial Technology, ISEP, Porto, Portugal
| | - Valery V Tuchin
- Saratov State University (National Research University of Russia), Research-Educational Institute of, Russia
- Precision Mechanics and Control Institute of the Russian Academy of Sciences, Laboratory of Laser Di, Russia
- ITMO University, Laboratory of Femtomedicine, St. Petersburg, Russia
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