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Amaroli A, Clemente Vargas MR, Pasquale C, Raffetto M, Ravera S. Photobiomodulation on isolated mitochondria at 810 nm: first results on the efficiency of the energy conversion process. Sci Rep 2024; 14:11060. [PMID: 38744931 PMCID: PMC11094005 DOI: 10.1038/s41598-024-61740-w] [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: 12/13/2023] [Accepted: 05/09/2024] [Indexed: 05/16/2024] Open
Abstract
In this paper the photobiomodulation on isolated mitochondria of bovine liver is studied as a thermodynamic process of conversion of energy. This analysis is conducted by considering a particular set-up for the photobiomodulation experiments of interest. It allows, in particular, the computation of the electromagnetic field and the related energetic quantities in the stimulated organelles. The measurements of the excess of biochemical power density produced by the illuminated mitochondria are performed at regular time intervals after the experiments. The calculations and the measurements finally allow us to obtain the first results on the efficiency of the process of conversion of electromagnetic energy into excess of biochemical energy released by the isolated organelles.
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Affiliation(s)
- Andrea Amaroli
- Department of Earth, Environment and Life Sciences, University of Genoa, Corso Europa 26, 16132, Genoa, Italy
| | - Mario Rene Clemente Vargas
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Via Opera Pia 11a, 16145, Genoa, Italy
| | - Claudio Pasquale
- Department of Mechanical, Energy, Management and Transport Engineering, University of Genova, Via Opera Pia 15, 16145, Genoa, Italy
| | - Mirco Raffetto
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Via Opera Pia 11a, 16145, Genoa, Italy.
| | - Silvia Ravera
- Department of Experimental Medicine, University of Genoa, Via L. B. Alberti 2, 16132, Genoa, Italy
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Nolte DD. Coherent light scattering from cellular dynamics in living tissues. REPORTS ON PROGRESS IN PHYSICS. PHYSICAL SOCIETY (GREAT BRITAIN) 2024; 87:036601. [PMID: 38433567 DOI: 10.1088/1361-6633/ad2229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/24/2024] [Indexed: 03/05/2024]
Abstract
This review examines the biological physics of intracellular transport probed by the coherent optics of dynamic light scattering from optically thick living tissues. Cells and their constituents are in constant motion, composed of a broad range of speeds spanning many orders of magnitude that reflect the wide array of functions and mechanisms that maintain cellular health. From the organelle scale of tens of nanometers and upward in size, the motion inside living tissue is actively driven rather than thermal, propelled by the hydrolysis of bioenergetic molecules and the forces of molecular motors. Active transport can mimic the random walks of thermal Brownian motion, but mean-squared displacements are far from thermal equilibrium and can display anomalous diffusion through Lévy or fractional Brownian walks. Despite the average isotropic three-dimensional environment of cells and tissues, active cellular or intracellular transport of single light-scattering objects is often pseudo-one-dimensional, for instance as organelle displacement persists along cytoskeletal tracks or as membranes displace along the normal to cell surfaces, albeit isotropically oriented in three dimensions. Coherent light scattering is a natural tool to characterize such tissue dynamics because persistent directed transport induces Doppler shifts in the scattered light. The many frequency-shifted partial waves from the complex and dynamic media interfere to produce dynamic speckle that reveals tissue-scale processes through speckle contrast imaging and fluctuation spectroscopy. Low-coherence interferometry, dynamic optical coherence tomography, diffusing-wave spectroscopy, diffuse-correlation spectroscopy, differential dynamic microscopy and digital holography offer coherent detection methods that shed light on intracellular processes. In health-care applications, altered states of cellular health and disease display altered cellular motions that imprint on the statistical fluctuations of the scattered light. For instance, the efficacy of medical therapeutics can be monitored by measuring the changes they induce in the Doppler spectra of livingex vivocancer biopsies.
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Affiliation(s)
- David D Nolte
- Department of Physics and Astronomy, Purdue University, West Lafayette, IN 47907, United States of America
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You C, Yi JY, Hsu TW, Huang SL. Integration of cellular-resolution optical coherence tomography and Raman spectroscopy for discrimination of skin cancer cells with machine learning. JOURNAL OF BIOMEDICAL OPTICS 2023; 28:096005. [PMID: 37720189 PMCID: PMC10500347 DOI: 10.1117/1.jbo.28.9.096005] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 08/28/2023] [Accepted: 09/05/2023] [Indexed: 09/19/2023]
Abstract
Significance An integrated cellular-resolution optical coherence tomography (OCT) module with near-infrared Raman spectroscopy was developed on the discrimination of various skin cancer cells and normal cells. Micron-level three-dimensional (3D) spatial resolution and the spectroscopic capability on chemical component determination can be obtained simultaneously. Aim We experimentally verified the effectiveness of morphology, intensity, and spectroscopy features for discriminating skin cells. Approach Both spatial and spectroscopic features were employed for the discrimination of five types of skin cells, including keratinocytes (HaCaT), the cell line of squamous cell carcinoma (A431), the cell line of basal cell carcinoma (BCC-1/KMC), primary melanocytes, and the cell line of melanoma (A375). The cell volume, compactness, surface roughness, average intensity, and internal intensity standard deviation were extracted from the 3D OCT images. After removing the fluorescence components from the acquired Raman spectra, the entire spectra (600 to 2100 cm - 1 ) were used. Results An accuracy of 85% in classifying five types of skin cells was achieved. The cellular-resolution OCT images effectively differentiate cancer and normal cells, whereas Raman spectroscopy can distinguish the cancer cells with nearly 100% accuracy. Conclusions Among the OCT image features, cell surface roughness, internal average intensity, and standard deviation of internal intensity distribution effectively differentiate the cancerous and normal cells. The three features also worked well in sorting the keratinocyte and melanocyte. Using the full Raman spectra, the melanoma and keratinocyte-based cell carcinoma cancer cells can be discriminated effectively.
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Affiliation(s)
- Cian You
- National Taiwan University, Graduate Institute of Photonics and Optoelectronics, Taipei, Taiwan
| | - Jui-Yun Yi
- National Kaohsiung Normal University, Department of Electrical Engineering, Kaohsiung, Taiwan
| | - Ting-Wei Hsu
- National Taiwan University, Graduate Institute of Photonics and Optoelectronics, Taipei, Taiwan
| | - Sheng-Lung Huang
- National Taiwan University, Graduate Institute of Photonics and Optoelectronics, Taipei, Taiwan
- National Taiwan University, All Vista Healthcare Center, Taipei, Taiwan
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Calbiague García V, Cadiz B, Herrera P, Díaz A, Schmachtenberg O. Evaluation of Photobiomodulation and Boldine as Alternative Treatment Options in Two Diabetic Retinopathy Models. Int J Mol Sci 2023; 24:ijms24097918. [PMID: 37175628 PMCID: PMC10178531 DOI: 10.3390/ijms24097918] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/18/2023] [Accepted: 04/19/2023] [Indexed: 05/15/2023] Open
Abstract
Diabetic retinopathy causes progressive and irreversible damage to the retina through activation of inflammatory processes, overproduction of oxidative species, and glial reactivity, leading to changes in neuronal function and finally ischemia, edema, and hemorrhages. Current treatments are invasive and mostly applied at advanced stages, stressing the need for alternatives. To this end, we tested two unconventional and potentially complementary non-invasive treatment options: Photobiomodulation, the stimulation with near-infrared light, has shown promising results in ameliorating retinal pathologies and insults in several studies but remains controversial. Boldine, on the other hand, is a potent natural antioxidant and potentially useful to prevent free radical-induced oxidative stress. To establish a baseline, we first evaluated the effects of diabetic conditions on the retina with immunofluorescence, histological, and ultrastructural analysis in two diabetes model systems, obese LepRdb/db mice and organotypic retinal explants, and then tested the potential benefits of photobiomodulation and boldine treatment in vitro on retinal explants subjected to high glucose concentrations, mimicking diabetic conditions. Our results suggest that the principal subcellular structures affected by these conditions were mitochondria in the inner segment of photoreceptors, which displayed morphological changes in both model systems. In retinal explants, lactate metabolism, assayed as an indicator of mitochondrial function, was altered, and decreased photoreceptor viability was observed, presumably as a consequence of increased oxidative-nitrosative stress. The latter was reduced by boldine treatment in vitro, while photobiomodulation improved mitochondrial metabolism but was insufficient to prevent retinal structural damage caused by high glucose. These results warrant further research into alternative and complementary treatment options for diabetic retinopathy.
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Affiliation(s)
- Víctor Calbiague García
- Ph. D. Program in Neuroscience, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
- Centro Interdisciplinario de Neurociencias de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
| | - Bárbara Cadiz
- Centro Interdisciplinario de Neurociencias de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
| | - Pablo Herrera
- Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
| | - Alejandra Díaz
- Centro Interdisciplinario de Neurociencias de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
| | - Oliver Schmachtenberg
- Centro Interdisciplinario de Neurociencias de Valparaíso (CINV), Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
- Instituto de Biología, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
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Mai Q, Han Y, Cheng G, Ma R, Yan Z, Chen X, Yu G, Chen T, Zhang S. Innovative Strategies for Hair Regrowth and Skin Visualization. Pharmaceutics 2023; 15:pharmaceutics15041201. [PMID: 37111686 PMCID: PMC10141228 DOI: 10.3390/pharmaceutics15041201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 03/31/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
Today, about 50% of men and 15-30% of women are estimated to face hair-related problems, which create a significant psychological burden. Conventional treatments, including drug therapy and transplantation, remain the main strategies for the clinical management of these problems. However, these treatments are hindered by challenges such as drug-induced adverse effects and poor drug penetration due to the skin's barrier. Therefore, various efforts have been undertaken to enhance drug permeation based on the mechanisms of hair regrowth. Notably, understanding the delivery and diffusion of topically administered drugs is essential in hair loss research. This review focuses on the advancement of transdermal strategies for hair regrowth, particularly those involving external stimulation and regeneration (topical administration) as well as microneedles (transdermal delivery). Furthermore, it also describes the natural products that have become alternative agents to prevent hair loss. In addition, given that skin visualization is necessary for hair regrowth as it provides information on drug localization within the skin's structure, this review also discusses skin visualization strategies. Finally, it details the relevant patents and clinical trials in these areas. Together, this review highlights the innovative strategies for skin visualization and hair regrowth, aiming to provide novel ideas to researchers studying hair regrowth in the future.
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Affiliation(s)
- Qiuying Mai
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems, Center for New Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Yanhua Han
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems, Center for New Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Guopan Cheng
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Rui Ma
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Zhao Yan
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Xiaojia Chen
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macau 999078, China
| | - Guangtao Yu
- Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
| | - Tongkai Chen
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - Shu Zhang
- Guangdong Provincial Key Laboratory of Advanced Drug Delivery Systems, Center for New Drug Research and Development, Guangdong Pharmaceutical University, Guangzhou 510006, China
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Stepanov YV, Golovynska I, Zhang R, Golovynskyi S, Stepanova LI, Gorbach O, Dovbynchuk T, Garmanchuk LV, Ohulchanskyy TY, Qu J. Near-infrared light reduces β-amyloid-stimulated microglial toxicity and enhances survival of neurons: mechanisms of light therapy for Alzheimer's disease. Alzheimers Res Ther 2022; 14:84. [PMID: 35717405 PMCID: PMC9206341 DOI: 10.1186/s13195-022-01022-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 05/11/2022] [Indexed: 05/31/2023]
Abstract
BACKGROUND Low-intensity light can decelerate neurodegenerative disease progression and reduce amyloid β (Aβ) levels in the cortex, though the cellular and molecular mechanisms by which photobiomodulation (PBM) protects against neurodegeneration are still in the early stages. Microglia cells play a key role in the pathology of Alzheimer's disease by causing chronic inflammation. We present new results concerning the PBM of both oxidative stress and microglia metabolism associated with the activation of metabolic processes by 808 nm near-infrared light. METHODS The studies were carried out using healthy male mice to obtain the microglial cell suspension from the hippocampus. Oligomeric β-amyloid (1-42) was prepared and used to treat microglia cells. Light irradiation of cells was performed using diode lasers emitting at 808 nm (30 mW/cm2 for 5 min, resulting in a dose of 10 J/cm2). Mitochondrial membrane potential, ROS level studies, cell viability, apoptosis, and necrosis assays were performed using epifluorescence microscopy. Phagocytosis, nitric oxide and H2O2 production, arginase, and glucose 6-phosphate dehydrogenase activities were measured using standard assays. Cytokines, glucose, lactate, and ATP were measurements with ELISA. As our data were normally distributed, two-way ANOVA test was used. RESULTS The light induces a metabolic shift from glycolysis to mitochondrial activity in pro-inflammatory microglia affected by oligomeric Aβ. Thereby, the level of anti-inflammatory microglia increases. This process is accompanied by a decrease in pro-inflammatory cytokines and an activation of phagocytosis. Light exposure decreases the Aβ-induced activity of glucose-6-phosphate dehydrogenase, an enzyme that regulates the rate of the pentose phosphate pathway, which activates nicotinamide adenine dinucleotide phosphate oxidases to further produce ROS. During co-cultivation of neurons with microglia, light prevents the death of neurons, which is caused by ROS produced by Aβ-altered microglia. CONCLUSIONS These original data clarify reasons for how PBM protects against neurodegeneration and support the use of light for therapeutic research in the treatment of Alzheimer's disease.
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Affiliation(s)
- Yurii V Stepanov
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Iuliia Golovynska
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Renlong Zhang
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Sergii Golovynskyi
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Liudmyla I Stepanova
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, 01601, Ukraine
| | - Oleksandr Gorbach
- Laboratory of Experimental Oncology, National Cancer Institute of Ukraine, Kyiv, 03022, Ukraine
| | - Taisa Dovbynchuk
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, 01601, Ukraine
| | - Liudmyla V Garmanchuk
- Institute of Biology and Medicine, Taras Shevchenko National University of Kyiv, Kyiv, 01601, Ukraine
| | - Tymish Y Ohulchanskyy
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China
| | - Junle Qu
- Center for Biomedical Optics and Photonics, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen, 518060, People's Republic of China.
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Cytoklepty in the plankton: A host strategy to optimize the bioenergetic machinery of endosymbiotic algae. Proc Natl Acad Sci U S A 2021; 118:2025252118. [PMID: 34215695 DOI: 10.1073/pnas.2025252118] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Endosymbioses have shaped the evolutionary trajectory of life and remain ecologically important. Investigating oceanic photosymbioses can illuminate how algal endosymbionts are energetically exploited by their heterotrophic hosts and inform on putative initial steps of plastid acquisition in eukaryotes. By combining three-dimensional subcellular imaging with photophysiology, carbon flux imaging, and transcriptomics, we show that cell division of endosymbionts (Phaeocystis) is blocked within hosts (Acantharia) and that their cellular architecture and bioenergetic machinery are radically altered. Transcriptional evidence indicates that a nutrient-independent mechanism prevents symbiont cell division and decouples nuclear and plastid division. As endosymbiont plastids proliferate, the volume of the photosynthetic machinery volume increases 100-fold in correlation with the expansion of a reticular mitochondrial network in close proximity to plastids. Photosynthetic efficiency tends to increase with cell size, and photon propagation modeling indicates that the networked mitochondrial architecture enhances light capture. This is accompanied by 150-fold higher carbon uptake and up-regulation of genes involved in photosynthesis and carbon fixation, which, in conjunction with a ca.15-fold size increase of pyrenoids demonstrates enhanced primary production in symbiosis. Mass spectrometry imaging revealed major carbon allocation to plastids and transfer to the host cell. As in most photosymbioses, microalgae are contained within a host phagosome (symbiosome), but here, the phagosome invaginates into enlarged microalgal cells, perhaps to optimize metabolic exchange. This observation adds evidence that the algal metamorphosis is irreversible. Hosts, therefore, trigger and benefit from major bioenergetic remodeling of symbiotic microalgae with potential consequences for the oceanic carbon cycle. Unlike other photosymbioses, this interaction represents a so-called cytoklepty, which is a putative initial step toward plastid acquisition.
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Amaroli A, Benedicenti S, Bianco B, Bosco A, Clemente Vargas MR, Hanna R, Kalarickel Ramakrishnan P, Raffetto M, Ravera S. Electromagnetic Dosimetry for Isolated Mitochondria Exposed to Near-Infrared Continuous-Wave Illumination in Photobiomodulation Experiments. Bioelectromagnetics 2021; 42:384-397. [PMID: 34004023 PMCID: PMC8251649 DOI: 10.1002/bem.22342] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 01/08/2021] [Accepted: 04/06/2021] [Indexed: 02/06/2023]
Abstract
This paper presents results on the electromagnetic field computed inside isolated mitochondria when they are exposed to near-infrared illuminations with reference to photobiomodulation experiments. The accurate calculation of the electromagnetic dose is considered to be important for a better understanding of the mechanism of interaction of light with these organelles and to improve the reliability and repeatability of the experiments. To get such results, we introduce several models. Even though they refer to a well-defined experimental setup, different models are necessary to take into account the possible different dispositions of the mitochondria, and of the differences in their dimensions and in their constitutive parameters. Different wavelengths and polarizations are considered as well. The effects of all parameters on the electromagnetic field inside mitochondria are discussed. © 2021 Bioelectromagnetics Society.
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Affiliation(s)
- Andrea Amaroli
- Department of Surgical and Diagnostic Sciences, University of Genoa, Genoa, Italy.,Department of Orthopaedic Dentistry, I.M. Sechenov First Moscow State Medical University, Moscow, Russian Federation
| | - Stefano Benedicenti
- Department of Surgical and Diagnostic Sciences, University of Genoa, Genoa, Italy
| | - Bruno Bianco
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Genoa, Italy
| | | | - Mario Rene Clemente Vargas
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Genoa, Italy
| | - Reem Hanna
- Department of Surgical and Diagnostic Sciences, University of Genoa, Genoa, Italy.,Department of Oral Surgery, King's College Hospital NHS Foundation Trust, London, UK
| | - Praveen Kalarickel Ramakrishnan
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Genoa, Italy
| | - Mirco Raffetto
- Department of Electrical, Electronic, Telecommunications Engineering and Naval Architecture, University of Genoa, Genoa, Italy
| | - Silvia Ravera
- Department of Experimental Medicine, University of Genoa, Genoa, Italy
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Two diagnostic criteria of optical spectroscopy for bladder tumor detection: Clinical study using 5-ALA induced fluorescence and mathematical modeling. Photodiagnosis Photodyn Ther 2020; 31:101829. [PMID: 32445963 DOI: 10.1016/j.pdpdt.2020.101829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Revised: 05/02/2020] [Accepted: 05/15/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND The study proposes to improve bladder cancer diagnosis by photodynamic diagnosis (PDD) using red-light excitation (632.8 nm) of 5-ALA induced-protoporphyrin IX. Employing 9 patients' bladders, two types of signals were used to improve diagnostic accuracy for malignancy and we also present numerical modeling of the scattering coefficient to provide biological explanation of the results obtained. METHODS Two modalities of bladder cancer spectral diagnosis are presented: conventional PDD and intensity assessment of the diffusely reflected laser light by fiber-optic spectroscopy. Experiments are done in clinical conditions and as a series of numerical simulations. RESULTS High-grade cancerous bladder tissues display twice a higher relative fluorescence intensity (mean value 1, n = 9) than healthy (0.39, n = 9), dysplastic (0.44, n = 5) tissues and CIS (0.39, n = 2). The laser back-scattering signal allows to discriminate most effectively high-grade cancerous and dysplastic tissues from normal. Numerical modeling of diffuse reflectance spectra reveals that spectral behavior of the back-scattered light depends on both, nuclear size and nuclear density of tumoral cells. CONCLUSIONS Unlike the fluorescence signal, where its value is higher in the case of pathological tissues, the tendency of the laser signal to, both, decrease or increase in comparison with the signal from normal urothelium, should be perceived as a sign towards neoplasm. Numerical simulation reveals that such a double-analysis at a multiwavelength mode potentially may be used to provide diagnostic accuracy.
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Fu C, Ma K, Li Z, Wang H, Chen T, Zhang D, Wang S, Mu N, Yang C, Zhao L, Gong S, Feng H, Li F. Rapid, label-free detection of cerebral ischemia in rats using hyperspectral imaging. J Neurosci Methods 2019; 329:108466. [PMID: 31628961 DOI: 10.1016/j.jneumeth.2019.108466] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 10/14/2019] [Accepted: 10/15/2019] [Indexed: 01/27/2023]
Abstract
BACKGROUND Stroke is the third most common cause of disability and the second most common cause of death worldwide. Ischemia, one of the two broad categories of stroke, is characterized by a lack of sufficient amounts of blood in order to supply an adequate amount of oxygen and nutrients. It is important to assess the part of the brain that becomes ischemic and necrotic during neurosurgery or experiments in real time. However, there is currently no effective means to achieve this goal. NEW METHOD We proposed a method based on hyperspectral imaging (HSI) for the real-time detection of a varied range of ischemic brain tissues in vivo or ex vivo and assessed the practical utility of a model of ischemic stroke in rats. RESULTS The results showed that hyperspectral images processed with a ratio of spectral reflectance at 545 and 560 nm (R545/R560) could identify early brain ischemia and accurately show regions of ischemia. COMPARISON WITH EXISTING METHODS We verified the area imaged by HSI using hematoxylin and eosin (HE) and 2, 3, 5-triphenyltetrazolium chloride (TTC) staining methods. This technique could precisely image the ischemic part of the brain in vivo and ex vivo. CONCLUSIONS These results demonstrate the practical utility of HSI for the real-time detection of cerebral ischemia in rats. By providing rapid assessment of brain tissue perfusion, HSI may help doctors recognize ischemic regions quickly and precisely during surgery as well as have great utility in the experimental process.
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Affiliation(s)
- Chuhua Fu
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China; Department of Neurosurgery, Xiangyang No. 1 People's Hospital, Hubei University of Medicine, Xiangyang, 441000, China
| | - Kang Ma
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Zhao Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Haifeng Wang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan Province, 621900, China
| | - Tunan Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Dayong Zhang
- Institute of Fluid Physics, China Academy of Engineering Physics, Mianyang, Sichuan Province, 621900, China
| | - Shi Wang
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Ning Mu
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Chuanyan Yang
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Lu Zhao
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Sheng Gong
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China
| | - Fei Li
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, 400038, China.
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Zhao J, Zhao Q, Jiang Y, Li W, Yang Y, Qian Z, Liu J. Feasibility study of modeling liver thermal damage using minimally invasive optical method adequate for in situ measurement. JOURNAL OF BIOPHOTONICS 2018; 11:e201700302. [PMID: 29316303 DOI: 10.1002/jbio.201700302] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 01/06/2018] [Indexed: 06/07/2023]
Abstract
Liver thermal ablation techniques have been widely used for the treatment of liver cancer. Kinetic model of damage propagation play an important role for ablation prediction and real-time efficacy assessment. However, practical methods for modeling liver thermal damage are rare. A minimally invasive optical method especially adequate for in situ liver thermal damage modeling is introduced in this paper. Porcine liver tissue was heated by water bath under different temperatures. During thermal treatment, diffuse reflectance spectrum of liver was measured by optical fiber and used to deduce reduced scattering coefficient (μ's ). Arrhenius parameters were obtained through non-isothermal heating approach with damage marker of μ's . Activation energy (Ea ) and frequency factor (A) was deduced from these experiments. A pair of averaged value is 1.200 × 105 J mol-1 and 4.016 × 1017 s-1 . The results were verified for their reasonableness and practicality. Therefore, it is feasible to modeling liver thermal damage based on minimally invasive measurement of optical property and in situ kinetic analysis of damage progress with Arrhenius model. These parameters and this method are beneficial for preoperative planning and real-time efficacy assessment of liver ablation therapy.
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Affiliation(s)
- Jinzhe Zhao
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Qi Zhao
- Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
| | - Yingxu Jiang
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Weitao Li
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Yamin Yang
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Zhiyu Qian
- Department of Biomedical Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, China
| | - Jia Liu
- Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, China
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018; 94:199-212. [PMID: 29164625 PMCID: PMC5844808 DOI: 10.1111/php.12864] [Citation(s) in RCA: 341] [Impact Index Per Article: 56.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 10/31/2017] [Indexed: 12/23/2022]
Abstract
Photobiomodulation (PBM) involves the use of red or near-infrared light at low power densities to produce a beneficial effect on cells or tissues. PBM therapy is used to reduce pain, inflammation, edema, and to regenerate damaged tissues such as wounds, bones, and tendons. The primary site of light absorption in mammalian cells has been identified as the mitochondria and, more specifically, cytochrome c oxidase (CCO). It is hypothesized that inhibitory nitric oxide can be dissociated from CCO, thus restoring electron transport and increasing mitochondrial membrane potential. Another mechanism involves activation of light or heat-gated ion channels. This review will cover the redox signaling that occurs in PBM and examine the difference between healthy and stressed cells, where PBM can have apparently opposite effects. PBM has a marked effect on stem cells, and this is proposed to operate via mitochondrial redox signaling. PBM can act as a preconditioning regimen and can interact with exercise on muscles.
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Affiliation(s)
- Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA
- Department of Dermatology, Harvard Medical School, Boston, MA
- Harvard-MIT Division of Health Sciences and Technology, Cambridge, MA
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13
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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14
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 or updatexml(4295,concat(0x2e,0x717a717671,(select (elt(4295=4295,1))),0x71706a6271),3985)-- bssu] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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16
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 or not 3194=3194# dgnj] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and (select (case when (5719=8223) then null else ctxsys.drithsx.sn(1,5719) end) from dual) is null] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and make_set(2234=2234,4853)-- tppa] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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22
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and 8885=3318-- bykq] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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24
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 or not 8779=2113# mdth] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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25
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 or not 5169=2257-- ejdi] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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26
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and 2019=2019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and 1705=('qzqvq'||(select case 1705 when 1705 then 1 else 0 end from rdb$database)||'qpjbq')-- qsrj] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and extractvalue(6022,concat(0x5c,0x717a717671,(select (elt(6022=6022,1))),0x71706a6271))# igpm] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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29
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and 2341=9012# mbxq] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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33
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 or not 9689=3416#] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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35
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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36
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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37
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and updatexml(3081,concat(0x2e,0x717a717671,(select (elt(3081=3081,1))),0x71706a6271),1398)# ymdb] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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39
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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40
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 rlike (select (case when (3831=3831) then 0x31302e313131312f7068702e3132383634 else 0x28 end))] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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41
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and 1321=4667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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42
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 or updatexml(4295,concat(0x2e,0x717a717671,(select (elt(4295=4295,1))),0x71706a6271),3985)# pcqv] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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43
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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44
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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45
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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46
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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47
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Hamblin MR. Mechanisms and Mitochondrial Redox Signaling in Photobiomodulation. Photochem Photobiol 2018. [DOI: 10.1111/php.12864 and 1705=('qzqvq'||(select case 1705 when 1705 then 1 else 0 end from rdb$database)||'qpjbq')# flsh] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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48
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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49
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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50
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Affiliation(s)
- Michael R. Hamblin
- Wellman Center for Photomedicine Massachusetts General Hospital Boston MA
- Department of Dermatology Harvard Medical School Boston MA
- Harvard‐MIT Division of Health Sciences and Technology Cambridge MA
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