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Lu C, Chen M, Zhao Y, Zhan Y, Wei X, Lu L, Yang M, Gong X. A Co-MOF encapsulated microneedle patch activates hypoxia induction factor-1 to pre-protect transplanted flaps from distal ischemic necrosis. Acta Biomater 2024:S1742-7061(24)00312-X. [PMID: 38871202 DOI: 10.1016/j.actbio.2024.06.008] [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: 03/17/2024] [Revised: 05/25/2024] [Accepted: 06/06/2024] [Indexed: 06/15/2024]
Abstract
Avoiding ischemic necrosis after flap transplantation remains a significant clinical challenge. Developing an effective pretreatment method to promote flap survival postoperatively is crucial. Cobalt chloride (CoCl2) can increase cell tolerance to ischemia and hypoxia condition by stimulating hypoxia-inducible factor-1 (HIF-1) expression. However, the considerable toxic effects severely limit the clinical application of CoCl2. In this study, cobalt-based metal-organic frameworks (Co-MOF) encapsulated in a microneedle patch (Co-MOF@MN) was developed to facilitate the transdermal sustained release of Co2+ for rapid, minimally invasive rapid pretreatment of flap transplantation. The MN patch was composed of a fully methanol-based two-component cross-linked polymer formula, with a pyramid structure and high mechanical strength, which satisfied the purpose of penetrating the skin stratum corneum of rat back to achieve subcutaneous vascular area administration. Benefiting from the water-triggered disintegration of Co-MOF and the transdermal delivery via the MN patch, preoperative damage and side effects were effectively mitigated. Moreover, in both the oxygen-glucose deprivation/recovery (OGD/R) cell model and the rat dorsal perforator flap model, Co-MOF@MN activated the HIF-1α pathway and its associated downstream proteins, which reduced reperfusion oxidative damage, improved blood supply in choke areas, and increased flap survival rates post-transplantation. This preprotection strategy, combining MOF nanoparticles and the MN patch, meets the clinical demands for trauma minimization and uniform administration in flap transplantation. STATEMENT OF SIGNIFICANCE: Cobalt chloride (CoCl2) can stimulate the expression of hypoxia-inducible factor (HIF-1) and improve the tolerance of cells to ischemia and hypoxia conditions. However, the toxicity and narrow therapeutic window of CoCl2 severely limit its clinical application. Herein, we explored the role of Co-MOF as a biocompatible nanocage for sustained release of Co2+, showing the protective effect on vascular endothelial cells in the stress model of oxygen-glucose deprivation. To fit the clinical needs of minimal trauma in flap transplantation, a Co-MOF@MN system was developed to achieve local transdermal delivery at the choke area, significantly improving blood supply opening and flap survival rate. This strategy of two-step delivery of Co2+ realized the enhancement of biological functions while ensuring the biosafety.
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Affiliation(s)
- Cheng Lu
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China
| | - Miao Chen
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China
| | - Yuanyuan Zhao
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China
| | - Yongxin Zhan
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China
| | - Xin Wei
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China
| | - Laijin Lu
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China; Orthopedics Central Laboratory, Institute of Translational Medicine, The First Hospital of Jilin University, Jilin University, Changchun 130021, PR China
| | - Mingxi Yang
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China; Orthopedics Central Laboratory, Institute of Translational Medicine, The First Hospital of Jilin University, Jilin University, Changchun 130021, PR China.
| | - Xu Gong
- Department of Hand and Podiatric Surgery, Orthopedics Center, The First Hospital of Jilin University, Jilin University, Changchun 130031, PR China; Orthopedics Central Laboratory, Institute of Translational Medicine, The First Hospital of Jilin University, Jilin University, Changchun 130021, PR China.
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Carozza G, Zerti D, Tisi A, Ciancaglini M, Maccarrone M, Maccarone R. An overview of retinal light damage models for preclinical studies on age-related macular degeneration: identifying molecular hallmarks and therapeutic targets. Rev Neurosci 2024; 35:303-330. [PMID: 38153807 DOI: 10.1515/revneuro-2023-0130] [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: 10/21/2023] [Accepted: 11/19/2023] [Indexed: 12/30/2023]
Abstract
Age-related macular degeneration (AMD) is a complex, multifactorial disease leading to progressive and irreversible retinal degeneration, whose pathogenesis has not been fully elucidated yet. Due to the complexity and to the multiple features of the disease, many efforts have been made to develop animal models which faithfully reproduce the overall AMD hallmarks or that are able to mimic the different AMD stages. In this context, light damage (LD) rodent models of AMD represent a suitable and reliable approach to mimic the different AMD forms (dry, wet and geographic atrophy) while maintaining the time-dependent progression of the disease. In this review, we comprehensively reported how the LD paradigms reproduce the main features of human AMD. We discuss the capability of these models to broaden the knowledge in AMD research, with a focus on the mechanisms and the molecular hallmarks underlying the pathogenesis of the disease. We also critically revise the remaining challenges and future directions for the use of LD models.
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Affiliation(s)
- Giulia Carozza
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Darin Zerti
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Annamaria Tisi
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Marco Ciancaglini
- Department of Life, Health & Environmental Sciences, University of L'Aquila, 67100 L'Aquila, Italy
| | - Mauro Maccarrone
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
- European Center for Brain Research (CERC)/Santa Lucia Foundation IRCCS, 00143 Rome, Italy
| | - Rita Maccarone
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, 67100 L'Aquila, Italy
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Zhang H, Zhang C, Pan L, Chen Y, Bian Z, Yang Y, Ke T, Sun W, Chen L, Tan J. Low-level Nd:YAG laser inhibiting inflammation and oxidative stress in human gingival fibroblasts via AMPK/SIRT3 axis. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY. B, BIOLOGY 2024; 251:112845. [PMID: 38244301 DOI: 10.1016/j.jphotobiol.2024.112845] [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: 10/31/2023] [Revised: 12/19/2023] [Accepted: 01/08/2024] [Indexed: 01/22/2024]
Abstract
OBJECTIVE Photobiomodulation is extensively employed in the management of chronic inflammatory diseases such as periodontitis because of its anti-inflammatory and antioxidant effects. This study used low-level Nd:YAG laser to investigate the mechanism of photobiomodulation as well as the role of adenosine monophosphate-activated protein kinase (AMPK) and Sirtuins (SIRT) 3 in it, providing new clues for the treatment of periodontitis. METHODS Human gingival fibroblasts (HGFs) were extracted from gingiva and stimulated with LPS. The suitable parameters of Nd:YAG laser were chosen for subsequent experiments by detecting cell viability. We assessed the level of inflammation and oxidative stress as well as AMPK and SIRT3. The mechanism for AMPK targeting SIRT3 modulating the anti-inflammatory and antioxidant effects of photobiomodulation was explored by the AMPK inhibitor (Compound C) test, cell transfection, western blot, and immunofluorescence. RESULTS HGFs were isolated and identified, followed by the identification of optimal Nd:YAG laser parameters (60 mJ, 15 Hz, 10s) for subsequent experimentation. With this laser, inflammatory factors (IL-6, TNF-α, COX2, and iNOS) decreased as well as the phosphorylation and nuclear translocation of NFκB-P65. SOD2 was up-regulated but reactive oxygen species (ROS) was down-regulated. The laser treatment exhibited enhancements in AMPK phosphorylation and SIRT3 expression. The above effects could all be reversed by Compound C. Silencing AMPK or SIRT3 by siRNA, the down-regulation of COX2, iNOS, and ROS by laser was inhibited. SIRT3 was down-regulated when the AMPK was silenced. CONCLUSION Low-level Nd:YAG laser activated AMPK-SIRT3 signaling pathway, facilitating the anti-inflammatory and antioxidative activity.
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Affiliation(s)
- Haizheng Zhang
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Chenyi Zhang
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lai Pan
- Dental Department, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yifan Chen
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Zirui Bian
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yuxuan Yang
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ting Ke
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Weilian Sun
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Lili Chen
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China..
| | - Jingyi Tan
- Department of Periodontology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China..
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Françon A, Behar-Cohen F, Torriglia A. The blue light hazard and its use on the evaluation of photochemical risk for domestic lighting. An in vivo study. ENVIRONMENT INTERNATIONAL 2024; 184:108471. [PMID: 38335626 DOI: 10.1016/j.envint.2024.108471] [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: 08/22/2023] [Revised: 01/16/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Nowadays artificial light highly increases human exposure to light leading to circadian rhythm and sleep perturbations. Moreover, excessive exposure of ocular structures to photons can induce irreversible retinal damage. Meta-analyses showed that sunlight exposure influences the age of onset and the progression of Age-related macular degeneration (AMD), the leading cause of blindness in people over fifty-year old. Currently, the blue-light hazard (BLH) curve is used in the evaluation of the phototoxicity of a light source for domestic lighting regulations. OBJECTIVES Here, we analyze the phototoxicity threshold in rats and investigate the role played by the light spectrum, assessing the relevance of the use of the BLH-weighting to define phototoxicity. METHODS We exposed albino rats to increasing doses of blue and white light, or to lights of different colors to evaluate the impact of each component of the white light spectrum on phototoxicity. Cellular mechanisms of cell death and cellular stress induced by light were analyzed. RESULTS Our results show that the phototoxicity threshold currently accepted for rats is overestimated by a factor of 50 when considering blue light and by a factor of 550 concerning white light. This is the result of the toxicity induced by green light that increases white light toxicity by promoting an inflammatory response. The content of green in white light induces 8 fold more invasion of macrophages in the retina than the content of blue light. Moreover, the use of BLH-weighting does not evaluate the amount of red radiations contained in white light that mitigates damage by inhibiting the nuclear translocation of L-DNase II and reducing by 33% the number of TUNEL-positive cells. DISCUSSION These findings question the current methods to determine the phototoxicity of a light source and show the necessity to take into account the entire emission spectrum. As current human phototoxicity thresholds were estimated with the same methods used for rats, our results suggest that they might need to be reconsidered.
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Affiliation(s)
- Anaïs Françon
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations. 15, rue de l'école de Médecine, 75006 Paris, France
| | - Francine Behar-Cohen
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations. 15, rue de l'école de Médecine, 75006 Paris, France; Assistance Publique, Hôpitaux de Paris, Hôpital Cochin, Ophtalmopole, 27, rue du Faubourg Saint-Jacques, 75014 Paris, France
| | - Alicia Torriglia
- Centre de Recherche des Cordeliers, INSERM UMRS 1138, Université Paris Cité, Sorbonne Université. Team: Physiopathology of Ocular Diseases: Therapeutic Innovations. 15, rue de l'école de Médecine, 75006 Paris, France.
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Feng Y, Huang Z, Ma X, Zong X, Wu CY, Lee RH, Lin HW, Hamblin MR, Zhang Q. Activation of testosterone-androgen receptor mediates cerebrovascular protection by photobiomodulation treatment in photothrombosis-induced stroke rats. CNS Neurosci Ther 2024; 30:e14574. [PMID: 38421088 PMCID: PMC10851319 DOI: 10.1111/cns.14574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/22/2023] [Accepted: 12/06/2023] [Indexed: 03/02/2024] Open
Abstract
RATIONALE Numerous epidemiological studies have reported a link between low testosterone levels and an increased risk of cerebrovascular disease in men. However, there is ongoing controversy surrounding testosterone replacement therapy due to potential side effects. PBMT has been demonstrated to improve cerebrovascular function and promote testosterone synthesis in peripheral tissues. Despite this, the molecular mechanisms that could connect PBMT with testosterone and vascular function in the brain of photothrombosis (PT)-induced stroke rats remain largely unknown. METHODS We measured behavioral performance, cerebral blood flow (CBF), vascular permeability, and the expression of vascular-associated and apoptotic proteins in PT-induced stroke rats treated with flutamide and seven consecutive days of PBM treatment (350 mW, 808 nM, 2 min/day). To gain further insights into the mechanism of PBM on testosterone synthesis, we used testosterone synthesis inhibitors to study their effects on bEND.3 cells. RESULTS We showed that PT stroke caused a decrease in cerebrovascular testosterone concentration, which was significantly increased by 7-day PBMT (808 nm, 350 mW/cm2 , 42 J/cm2 ). Furthermore, PBMT significantly increased cerebral blood flow (CBF) and the expression of vascular-associated proteins, while inhibiting vascular permeability and reducing endothelial cell apoptosis. This ultimately mitigated behavioral deficits in PT stroke rats. Notably, treatment with the androgen receptor antagonist flutamide reversed the beneficial effects of PBMT. Cellular experiments confirmed that PBMT inhibited cell apoptosis and increased vascular-associated protein expression in brain endothelial cell line (bEnd.3) subjected to oxygen-glucose deprivation (OGD). However, these effects were inhibited by flutamide. Moreover, mechanistic studies revealed that PBMT-induced testosterone synthesis in bEnd.3 cells was partly mediated by 17β-hydroxysteroid dehydrogenase 5 (17β-HSD5). CONCLUSIONS Our study provides evidence that PBMT attenuates cerebrovascular injury and behavioral deficits associated with testosterone/AR following ischemic stroke. Our findings suggest that PBMT may be a promising alternative approach for managing cerebrovascular diseases.
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Affiliation(s)
- Yu Feng
- Department of NeurologyLouisiana State University Health Sciences CenterShreveportLouisianaUSA
| | - Zhihai Huang
- Department of NeurologyLouisiana State University Health Sciences CenterShreveportLouisianaUSA
| | - Xiaohui Ma
- Department of NeurologyLouisiana State University Health Sciences CenterShreveportLouisianaUSA
| | - Xuemei Zong
- Department of NeurologyLouisiana State University Health Sciences CenterShreveportLouisianaUSA
| | - Celeste Yin‐Chieh Wu
- Department of NeurologyLouisiana State University Health Sciences CenterShreveportLouisianaUSA
| | - Reggie Hui‐Chao Lee
- Department of NeurologyLouisiana State University Health Sciences CenterShreveportLouisianaUSA
| | - Hung Wen Lin
- Department of NeurologyLouisiana State University Health Sciences CenterShreveportLouisianaUSA
| | - Michael R. Hamblin
- Wellman Center for PhotomedicineMassachusetts General HospitalBostonMassachusettsUSA
| | - Quanguang Zhang
- Department of NeurologyLouisiana State University Health Sciences CenterShreveportLouisianaUSA
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Goo H, Lee MY, Lee YJ, Lee S, Ahn JC, Hong N. Multi-Wavelength Photobiomodulation Ameliorates Sodium Iodate-Induced Age-Related Macular Degeneration in Rats. Int J Mol Sci 2023; 24:17394. [PMID: 38139223 PMCID: PMC10743884 DOI: 10.3390/ijms242417394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/01/2023] [Accepted: 12/07/2023] [Indexed: 12/24/2023] Open
Abstract
Age-related macular degeneration (AMD) is a global health challenge. AMD causes visual impairment and blindness, particularly in older individuals. This multifaceted disease progresses through various stages, from asymptomatic dry to advanced wet AMD, driven by various factors including inflammation and oxidative stress. Current treatments are effective mainly for wet AMD; the therapeutic options for dry AMD are limited. Photobiomodulation (PBM) using low-energy light in the red-to-near-infrared range is a promising treatment for retinal diseases. This study investigated the effects of multi-wavelength PBM (680, 780, and 830 nm) on sodium iodate-induced oxidatively damaged retinal tissue. In an in vivo rat model of AMD induced by sodium iodate, multi-wavelength PBM effectively protected the retinal layers, reduced retinal apoptosis, and prevented rod bipolar cell depletion. Furthermore, PBM inhibited photoreceptor degeneration and reduced retinal pigment epithelium toxicity. These results suggest that multi-wavelength PBM may be a useful therapeutic strategy for AMD, mitigating oxidative stress, preserving retinal integrity, and preventing apoptosis.
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Affiliation(s)
- Hyeyoon Goo
- Department of Medical Laser, Graduate School of Medicine, Dankook University, Cheonan 31116, Republic of Korea;
- Beckman Laser Institute-Korea, Dankook University, Cheonan 31116, Republic of Korea; (M.Y.L.); (Y.-J.L.)
| | - Min Young Lee
- Beckman Laser Institute-Korea, Dankook University, Cheonan 31116, Republic of Korea; (M.Y.L.); (Y.-J.L.)
- Department of Otolaryngology-Head & Neck Surgery, College of Medicine, Dankook University Hospital, Dankook University, Cheonan 31116, Republic of Korea
| | - Yea-Jin Lee
- Beckman Laser Institute-Korea, Dankook University, Cheonan 31116, Republic of Korea; (M.Y.L.); (Y.-J.L.)
| | - Sangkeun Lee
- MEDI-IOT Co., Ltd., Seoul 02708, Republic of Korea;
| | - Jin-Chul Ahn
- Beckman Laser Institute-Korea, Dankook University, Cheonan 31116, Republic of Korea; (M.Y.L.); (Y.-J.L.)
| | - Namgue Hong
- Beckman Laser Institute-Korea, Dankook University, Cheonan 31116, Republic of Korea; (M.Y.L.); (Y.-J.L.)
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Zhang CX, Lou Y, Chi J, Bao XL, Fan B, Li GY. Considerations for the Use of Photobiomodulation in the Treatment of Retinal Diseases. Biomolecules 2022; 12:biom12121811. [PMID: 36551239 PMCID: PMC9775242 DOI: 10.3390/biom12121811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2022] [Revised: 11/26/2022] [Accepted: 12/01/2022] [Indexed: 12/11/2022] Open
Abstract
Photobiomodulation (PBM) refers to the beneficial effect produced from low-energy light irradiation on target cells or tissues. Increasing evidence in the literature suggests that PBM plays a positive role in the treatment of retinal diseases. However, there is great variation in the light sources and illumination parameters used in different studies, resulting in significantly different conclusions regarding PBM's therapeutic effects. In addition, the mechanism by which PBM improves retinal function has not been fully elucidated. In this study, we conducted a narrative review of the published literature on PBM for treating retinal diseases and summarized the key illumination parameters used in PBM. Furthermore, we explored the potential molecular mechanisms of PBM at the retinal cellular level with the goal of providing evidence for the improved utilization of PBM in the treatment of retinal diseases.
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Affiliation(s)
- Chun-Xia Zhang
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
| | - Yan Lou
- Department of Nephropathy, The Second Hospital of Jilin University, Changchun 130042, China
| | - Jing Chi
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
| | - Xiao-Li Bao
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
| | - Bin Fan
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
- Correspondence: (B.F.); (G.-Y.L.)
| | - Guang-Yu Li
- Department of Ophthalmology, The Second Hospital of Jilin University, Changchun 130042, China
- Correspondence: (B.F.); (G.-Y.L.)
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Carroll JD. Photobiomodulation Literature Watch June 2022. Photobiomodul Photomed Laser Surg 2022. [DOI: 10.1089/photob.2022.0086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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