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de Oliveira VXR, Soares PBF, Jorge GS, de Oliveira APL, Pigossi SC, de Oliveira GJPL. Effect of photobiomodulation with different wavelengths on periodontal repair in non-hyperglycemic and hyperglycemic rats. J Periodontal Res 2024. [PMID: 39129240 DOI: 10.1111/jre.13332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Revised: 07/09/2024] [Accepted: 07/24/2024] [Indexed: 08/13/2024]
Abstract
BACKGROUND Hyperglycemic conditions is associated with more severe periodontitis and poorer outcomes after nonsurgical periodontal treatment (NPT). Then, these patients are candidates for adjunctive therapy associated with NPT. This study evaluates the effect of photobiomodulation (PBMT) at different wavelengths on periodontal repair in non-hyperglycemic/hyperglycemic animals. MATERIALS AND METHODS Sixty-four rats were submitted to induction of periodontitis by ligatures. Hyperglycemia was induced in half of these animals, whereas the other half remained non-hyperglycemic. The animals were subdivided into 4 groups according to the PBMT protocol applied at the time of ligature removal (n = 8): CTR: Without PBMT; IRL: PBMT with infrared laser (808 nm); RL: PBMT with red laser (660 nm); and RL-IRL: PBMT with red (660 nm) and infrared laser (808 nm). After a period of 7 days, the animals were euthanized. The parameters assessed by microtomography were the bone volume relative to total tissue volume (BV/TV%), distance from the cemento-enamel junction to the top of the bone crest (CEJ-CB), trabecular thickness, space between trabeculae, and number of trabeculae. Additionally, the percentage of inflammatory cells, blood vessels, and connective tissue matrix were assessed by histomorphometric analysis. RESULTS PBMT reduced bone loss and increased trabecular density in hyperglycemic animals (p < .05), with RL being more effective in reducing linear bone loss (CEJ-CB), whereas RL-IRL was more effective in maintaining BV/TV%. PBMT reduced blood vessels and increased the connective tissue component in hyperglycemic animals (p < .05). RL-IRL reduced inflammatory cells regardless of the systemic condition of the animal (p < .05). CONCLUSION PBMT (RL, RL-IRL) improves the repair of periodontal tissues in hyperglycemic animals.
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Affiliation(s)
| | | | - Giovanna Savastano Jorge
- Department of Periodontology, School of Dentistry, Universidade Federal de Uberlândia - UFU, Uberlândia, Brazil
| | - Ana Paula Lima de Oliveira
- Department of Periodontology, School of Dentistry, Universidade Federal de Uberlândia - UFU, Uberlândia, Brazil
| | - Suzane Cristina Pigossi
- Department of Periodontology, School of Dentistry, Universidade Federal de Uberlândia - UFU, Uberlândia, Brazil
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Janson TM, Ramenzoni LL, Hatz CR, Schlagenhauf U, Attin T, Schmidlin PR. Limosilactobacillus reuteri supernatant attenuates inflammatory responses of human gingival fibroblasts to LPS but not to elevated glucose levels. J Periodontal Res 2024. [PMID: 38764133 DOI: 10.1111/jre.13290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Revised: 05/04/2024] [Accepted: 05/05/2024] [Indexed: 05/21/2024]
Abstract
AIM We investigated the in vitro effect of Limosilactobacillus reuteri DSM 17938 supernatant on the inflammatory response of human gingival fibroblasts (HGF) challenged by lipopolysaccharide (LPS) or elevated glucose levels. METHODS HGF were exposed to LPS (1 μg/mL), glucose (5, 12 mM or 25 mM), and dilutions of supernatant prepared from L. reuteri DSM 17938 (0.5 × 107, 1.0 × 107, 2.5 × 107, and 5.0 × 107 CFU/mL). After 24 h cell viability and levels of cytokines (IL-1β, IL-6 and IL-8) and TLR-2 were determined. RESULTS None of the tested L. reuteri (DSM 17938) supernatant concentrations reduced the viability of HGF. Supernatant concentrations (2.5 × 107 and 5 × 107 CFU/mL) significantly (p < .05) decreased the production of IL-1β, IL-6, IL-8, and TLR-2 in the presence of LPS. In contrast, inflammatory markers were not reduced by L. reuteri supernatant in the presence of glucose. Glucose concentrations of 12 mM and 24 mM still lead to an elevated production of the investigated biochemical mediators. CONCLUSION While L. reuteri (DSM 17938) supernatant attenuates the inflammatory response of HGF to LPS in a dose-dependent manner, elevated glucose levels suppress this action. These in vitro results support the overall anti-inflammatory efficacy of L. reuteri supplementation in plaque-associated periodontal inflammations.
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Affiliation(s)
- T M Janson
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - L L Ramenzoni
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - C R Hatz
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - U Schlagenhauf
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
- Department of Conservative Dentistry and Periodontology, Center for Oral Health, University Hospital Wuerzburg, Wuerzburg, Germany
| | - T Attin
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
| | - P R Schmidlin
- Division of Periodontology and Peri-implant Diseases, Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, Zurich, Switzerland
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Kreindl C, Soto-Alarcón SA, Hidalgo M, Riveros AL, Añazco C, Pulgar R, Porras O. Selenium Compounds Affect Differently the Cytoplasmic Thiol/Disulfide State in Dermic Fibroblasts and Improve Cell Migration by Interacting with the Extracellular Matrix. Antioxidants (Basel) 2024; 13:159. [PMID: 38397757 PMCID: PMC10886037 DOI: 10.3390/antiox13020159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/15/2024] [Accepted: 01/24/2024] [Indexed: 02/25/2024] Open
Abstract
Deficient wound healing is frequently observed in patients diagnosed with diabetes, a clinical complication that compromises mobility and leads to limb amputation, decreasing patient autonomy and family lifestyle. Fibroblasts are crucial for secreting the extracellular matrix (ECM) to pave the wound site for endothelial and keratinocyte regeneration. The biosynthetic pathways involved in collagen production and crosslinking are intimately related to fibroblast redox homeostasis. In this study, two sets of human dermic fibroblasts were cultured in normal (5 mM) and high (25 mM)-glucose conditions in the presence of 1 µM selenium, as sodium selenite (inorganic) and the two selenium amino acids (organic), Se-cysteine and Se-methionine, for ten days. We investigated the ultrastructural changes in the secreted ECM induced by these conditions using scanning electron microscopy (SEM). In addition, we evaluated the redox impact of these three compounds by measuring the basal state and real-time responses of the thiol-based HyPer biosensor expressed in the cytoplasm of these fibroblasts. Our results indicate that selenium compound supplementation pushed the redox equilibrium towards a more oxidative tone in both sets of fibroblasts, and this effect was independent of the type of selenium. The kinetic analysis of biosensor responses allowed us to identify Se-cysteine as the only compound that simultaneously improved the sensitivity to oxidative stimuli and augmented the disulfide bond reduction rate in high-glucose-cultured fibroblasts. The redox response profiles showed no clear association with the ultrastructural changes observed in matrix fibers secreted by selenium-treated fibroblasts. However, we found that selenium supplementation improved the ECM secreted by high-glucose-cultured fibroblasts according to endothelial migration assessed with a wound healing assay. Direct application of sodium selenite and Se-cysteine on purified collagen fibers subjected to glycation also improved cellular migration, suggesting that these selenium compounds avoid the undesired effect of glycation.
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Affiliation(s)
- Christine Kreindl
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
| | - Sandra A. Soto-Alarcón
- Department of Nutrition and Dietetics, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago 7500912, Chile;
| | - Miltha Hidalgo
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
| | - Ana L. Riveros
- Laboratorio de Nanobiotecnología y Nanotoxicología, Departamento de Química Farmacológica y Toxicológica, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Sergio Livingston 1007, Santiago 8380492, Chile;
| | - Carolina Añazco
- Laboratorio de Bioquímica Nutricional, Escuela de Nutrición y Dietética, Facultad de Ciencias para el Cuidado de la Salud, Universidad San Sebastián, General Lagos #1190, Valdivia 5110773, Chile;
| | - Rodrigo Pulgar
- Laboratory of Genomics and Genetics of Biological Interactions, Instituto de Nutrición y Tecnología de los Alimentos (INTA), Universidad de Chile, Santiago 7830490, Chile;
| | - Omar Porras
- Laboratory for Research in Functional Nutrition, Instituto de Nutrición y Tecnología de los Alimentos, Universidad de Chile, Santiago 7830490, Chile; (C.K.); (M.H.)
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Iranpour B, Mohammadi K, Hodjat M, Hakimiha N, Sayar F, Kharazi Fard MJ, Sadatmansouri S, Hanna R. An evaluation of photobiomodulation effects on human gingival fibroblast cells under hyperglycemic condition: an in vitro study. Lasers Med Sci 2023; 39:9. [PMID: 38110767 DOI: 10.1007/s10103-023-03954-4] [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: 02/12/2023] [Accepted: 12/11/2023] [Indexed: 12/20/2023]
Abstract
An in vitro study was designed to evaluate the effects of photobiomodulation (PBM) with 915-nm diode laser on human gingival fibroblast (HGF) cells under hyperglycemic condition. The HGF cells were cultured in Dulbecco's modified eagle medium (DMEM) medium containing 30 mM glucose concentration for 48 h to mimic the hyperglycemic condition. Subsequently, the cells received three sessions of PBM (915 nm, continuous emission mode, 200 mW, energy density values of 3.2, 6, and 9.2 J/cm2). Twenty-four hours post-irradiation, cell proliferation, expression of interleukin 6 (IL-6), and vascular endothelial growth factor (VEGF) were assessed with MTT and real-time polymerase chain reaction (PCR) tests, respectively. Also, reactive oxygen species (ROS) production was measured using CM-H2DCFDA fluorimetry. No changes were detected in the cell proliferation rate between the high glucose control group and laser-treated cells, while VEGF and IL-6 gene expression levels increased significantly after PBM in the high glucose-treated cells group. ROS level was significantly decreased in the irradiated cells in high-glucose medium compared with the high glucose control group. Our study revealed the inductive role of 915-nm-mediated PBM on VEGF and the inflammatory response while concurrently reducing reactive oxygen species production in HGF cells in hyperglycemic conditions.
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Affiliation(s)
- Babak Iranpour
- Department of Periodontology, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Kimia Mohammadi
- Department of Periodontology, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mahshid Hodjat
- Dental Research Centre, Dentistry Research Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Neda Hakimiha
- Laser Application in Medical Sciences Research Centre, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Ferena Sayar
- Department of Periodontology, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | | | - Saeed Sadatmansouri
- Department of Periodontology, Faculty of Dentistry, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Reem Hanna
- Department of Oral Surgery, King's College Hospital, Denmark Hill, London, SE5 9RS, UK
- Department of Restorative Dental Sciences, Faculty of Medical Sciences, UCL-Eastman Dental Institute, Rockefeller Building, London, WC1E 6DE, UK
- Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, Viale Benedetto XV, 6, 16132, Genoa, Italy
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Liu Y, Yang J, Jiang B, Zheng G, Wang Y. Low-energy LED red light inhibits the NF-κB pathway and promotes hPDLSCs proliferation and osteogenesis in a TNF-α environment in vitro. Lasers Med Sci 2023; 38:240. [PMID: 37851127 DOI: 10.1007/s10103-023-03880-5] [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: 12/21/2022] [Accepted: 09/11/2023] [Indexed: 10/19/2023]
Abstract
There are few studies on the effect of low-energy LED red light on periodontal tissue regeneration in an inflammatory environment. In this study, Cell Counting Kit-8 (CCK-8) assays were used to detect the effects of TNF-α at three different concentrations (0, 10 ng/ml, and 20 ng/ml) on the proliferation of human periodontal ligament stem cells (hPDLSCs), and 10 ng/ml was selected as the subsequent experimental stimulation concentration. CCK-8 assays were used to detect the effect of LED red light with energy density of 1 J/ cm2, 3 J/ cm2, and 5 J/cm2 on the proliferation of hPDLSCs. The promotion effect of energy density of 5 J/cm2 on the proliferation of hPDLSCS was the most obvious (p < 0.05). Set CON group, ODM group, ODM + 10 ng/ml TNF-α group, and ODM + 10 ng/ml TNF-α + 5 J/ cm2 LED red light group. Alkaline phosphatase staining and activity detection, alizarin red staining and calcium nodules quantitative detection of osteoblast differentiation products, real-time fluorescence quantitative PCR detection of osteoblast gene expression (Runx2, Col-I, OPN, OCN). The results showed that ODM showed the strongest osteoblast ability, followed by ODM + 10 ng/ml TNF-α + 5 J/ cm2 LED red light group. The osteoblast ability of ODM + 10 ng/ml TNF-α was decreased, but was not found in CON group. Western blot was used to detect the expression of NF-κB pathway protein and osteoblast-related proteins (Runx2, Col-I, OPN, OCN) after addition of PDTC inhibitor. The results showed that the expression of p-IκBα was increased and the expression of IκBα was decreased (p < 0.05). The expression of osteoblast protein increased after the addition of inhibitor (p < 0.05). Therefore, in an inflammatory environment constructed by 10 ng/ml TNF-α, 5 J/cm2 LED red light can upregulate the proliferation and osteogenesis of hPDLSCs by inhibiting NF-κB signaling pathway.
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Affiliation(s)
- Yuan Liu
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China
- The Third Hospital of Mianyang, Department of Stomatology, Mianyang, 621000, China
- Sichuan Mental Health Center, Mianyang, 621000, China
| | - Juan Yang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, Luzhou, 646000, China
- Chenjiaqiao Hospital of Shapingba District Chongqing, Chongqing, 400000, China
| | - Bing Jiang
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, Luzhou, 646000, China
- Dazhou Hospital of Integrated TCM & Western Medicine Hospital, Dazhou, 635000, China
| | - Genzi Zheng
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, Luzhou, 646000, China
- The Third Hospital of Yibin, Department of Stomatology, Yibin, 644000, China
| | - Yao Wang
- Institute of Stomatology, Southwest Medical University, Luzhou, 646000, China.
- Oral & Maxillofacial Reconstruction and Regeneration of Luzhou Key Laboratory, Luzhou, 646000, China.
- The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, 646000, China.
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Shaheen MY, Al-Zawawi AS, Divakar DD, Aldulaijan HA, Basudan AM. Role of Chlorhexidine and Herbal Oral Rinses in Managing Periodontitis. Int Dent J 2023; 73:235-242. [PMID: 35907673 PMCID: PMC10023587 DOI: 10.1016/j.identj.2022.06.027] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/28/2022] [Accepted: 06/29/2022] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The aim of this research was to assess the effect of 0.12% chlorhexidine (CHX) and a Salvadora persica-based mouthwash on whole salivary tumour necrosis factor-alpha (TNF-α) levels and periodontal inflammation in patients with type 2 diabetes mellitus (T2DM). METHODS Patients with and without medically diagnosed T2DM were included. Patients' medical records were evaluated to confirm the diagnosis of T2DM. All patients underwent nonsurgical periodontal therapy (NSPT). Patients were divided into 2 subgroups. In the test and control group, patients were advised to rinse with an S persica-based mouthwash and a non-alcoholic 0.12% CHX after NSPT twice daily for 2 weeks, respectively. Demographic data were collected. Full-mouth plaque index (PI), gingival index (GI), probing depth (PD), and clinical attachment loss (AL) were measured, and whole salivary TNF-α levels were gauged at baseline and at 3-month follow-up. Haemoglobin A1c (HbA1c) levels were measured in all patients at baseline and at 3-month follow-up. Sample size estimation was done, and group comparison was performed. Level of significance was set at P < .01. RESULTS Twenty-one nondiabetic individuals and 21 patients with T2DM were included. At baseline, there was no significant difference in clinical and radiographic periodontal parameters amongst in patients with and without T2DM. At 3-month follow-up, HbA1c, TNF-α, PI, PD, and clinical AL were comparable with their respective baseline values in the test and control groups amongst patients with T2DM. In nondiabetic individuals, there was a significant reduction in PI (P < .01), GI (P < .01), and PD (P < .01), and TNF-α (P < .01) at 3-month follow-up in the test and control groups compared with their respective baseline scores. CONCLUSIONS In the short term, NSPT with 0.12% CHX or S persica-based mouthwashes is more effective in reducing periodontal inflammation and whole salivary TNF-α levels in nondiabetic individuals than in patients with T2DM with periodontal inflammation.
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Affiliation(s)
- Marwa Y Shaheen
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
| | - Abeer S Al-Zawawi
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Darshan Devang Divakar
- Department of Oral Medicine and Radiology, Sharavathi Dental College and Hospital, Shivamogga, Karnataka, India; Department of Oral Medicine and Radiology, Faculty of Dentistry, Levy Mwanawasa Medical University, Ministry of Health, Lusaka, Zambia
| | - Hajer A Aldulaijan
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Amani M Basudan
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
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Liu N, Cao L, Peng L, Lu W, Dai X, Wang S, Guo G, Qu X, Xu Y, Zhu C. Photobiomodulation (800 nm Light-Emitting Diode) Treatment Promotes Bone Mesenchymal Stem Cell Proliferation Via Long Noncoding RNA MEG3-MicroRNA-217-5P Pathway. Photobiomodul Photomed Laser Surg 2023; 41:10-16. [PMID: 36577047 DOI: 10.1089/photob.2021.0187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Background: Patients with osteoporosis (OP) have a high risk of bone fracture. Abnormal bone mesenchymal stem cell (BMSC) differentiation is an essential process of OP development. In recent years, photobiomodulation has been shown to effectively promote BMSC proliferation. However, the mechanism by which photobiomodulation promotes BMSC proliferation is unclear. Long noncoding RNAs (lncRNAs) are essential mediators in multiple biological processes. The lncRNA maternally expressed gene 3 (MEG3) is a novel lncRNA gene and is related to cell proliferation. Studies have indicated that MEG3 serves as a promotor in BMSC proliferation. Objective: To investigate the effects and mechanisms of 800 nm light-emitting diode (LED) photobiomodulation in BMSC proliferation. Materials and methods: The BMSCs collected from mouse tibias and femurs were irradiated by 800 nm LED for 180 sec. CCK-8 assay was used to detect the cell viability. A dual-luciferase reporter assay was used to determine IncRNA MEG3 acted as a miR-217-5p sponge. We used reverse transcription-polymerase chain reaction (RT-PCR) and western blot to detect the mRNA and protein levels of MEG3, miR-217-5p, Notch2, Hes1, Hey2. Results: In the present study, we revealed that photobiomodulation (800 nm LED) could increase the mRNA level of MEG3, and protein levels of Notch2, Hes1, and Hey2. Moreover, we also identified that upregulated MEG3 could act as a miR-217-5p sponge to activate the Notch signaling pathway. Conclusions: The current study revealed the MEG3-related mechanism of photobiomodulation treatment in OP and identified potential gene therapies for OP.
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Affiliation(s)
- Na Liu
- Department of Anesthesiology and Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Lan Cao
- Dermatological Department, Yan'an Hospital Affiliated to Kunming Medical University, Kunming, China
| | - Lei Peng
- Department of Anesthesiology and Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Weiwei Lu
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Xiaolin Dai
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Shengyu Wang
- Medical School, Kunming University of Science and Technology, Kunming, China
| | - Guangqiong Guo
- Department of Anesthesiology and Surgery, The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Xiaowen Qu
- The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Ying Xu
- The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
| | - Chongtao Zhu
- The First People's Hospital of Yunnan Province, The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
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Arjmand B, Rahim F. The Probable Protective Effect of Photobiomodulation on the Immunologic Factor's mRNA Expression Level in the Lung: An Extended COVID-19 Preclinical and Clinical Meta-analysis. CLINICAL PATHOLOGY (THOUSAND OAKS, VENTURA COUNTY, CALIF.) 2023; 16:2632010X221127683. [PMID: 36938515 PMCID: PMC10014418 DOI: 10.1177/2632010x221127683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Accepted: 09/02/2022] [Indexed: 03/14/2023]
Abstract
Background Different expression of cytokine genes in the body determines the type of immune response (Th1 or Th2), which can play an important role in the pathogenesis of the COVID-19 disease. Aims This meta-analysis was conducted to evaluate the probable effect of photobiomodulation (PBMT) therapy on the cytokine's mRNA expression in the lung. Methods We systematically searched indexing databases, including PubMed/Medline, ISI web of science, Scopus, EMBASE, and Cochrane central, using standard terms without language, study region or type restrictions. Studies on using PBM in lung injury modeling with samples collected from lung tissue to observe IL-1β, TNF-α, IL-10, and IL-6 mRNA expression were included. RevMan 5.3 software was used for data analysis and standardized mean difference as effect size. Results Of the 438 studies found through initial searches, 17 met the inclusion criteria. The main properties of 13 articles on 384 animals included in this meta-analysis with a wide range of species include rats (n = 10) and rabbits (n = 3). The analysis revealed that PBMT reduced the mRNA expression of TNFα (SMD: -3.70, 95% CI: -6.29, -1.11, P = .005,I 2 = 71%) and IL-1β (SMD: -5.85, 95% CI: -8.01, -3.69, P < .00001,I 2 = 37%) significantly, but no statistically significant reduction in IL-6 (SMD: -2.89, 95% CI: -5.79, 0.01, P = .05,I 2 = 88%) was observed compared with the model controls. Also, PBMT increased IL-10 mRNA expression significantly compared with the model controls (SMD: 1.04, 95% CI: 0.43, 1.64, P = .0008,I 2 = 17%). Conclusion This meta-analysis revealed that the PBMT utilizes beneficial anti-inflammatory effects and modulation of the immune system on lung damage in animal models and clinical studies. However, animal models and clinical studies appear limited considering the evidence's quality; therefore, large clinical trials are still required.
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Affiliation(s)
- Babak Arjmand
- Cell Therapy and Regenerative Medicine
Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute,
Tehran University of Medical Sciences, Tehran, Iran
- Metabolomics and Genomics Research
Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran
University of Medical Sciences, Tehran, Iran
| | - Fakher Rahim
- Metabolomics and Genomics Research
Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran
University of Medical Sciences, Tehran, Iran
- Health Research Institute, Thalassemia
and Hemoglobinopathies Research Centre, Ahvaz Jundishapur University of Medical
Sciences, Ahvaz, Iran
- Fakher Rahim, Health Research Institute,
Thalassemia and Hemoglobinopathies Research Center, Ahvaz Jundishapur University
of Medical Sciences, Ahvaz 61357-15794, Iran.
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Kasowanjete P, Houreld NN, Abrahamse H. The effect of photomodulation on fibroblast growth factor and the Ras/MAPK signalling pathway: a review. J Wound Care 2022; 31:832-845. [DOI: 10.12968/jowc.2022.31.10.832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Abstract
Objective: Current therapies and technologies used to treat hard-to-heal diabetic wounds are limited to a 50% healing rate. The rise in the percentage of lower limb non-traumatic amputations in patients with diabetes has caused an increased demand for alternative, effective and safe treatment modalities. Photobiomodulation therapy (PBMT) utilises light to induce physiological changes and provide therapeutic benefits and has been shown to increase the healing of hard-to-heal wounds through the release of growth factors. The aim of this narrative review is to investigate the effect of photobiomodulation (PBM) on fibroblast growth factor (FGF) and the role of the Ras/MAPK signalling pathway in diabetic wound healing. Method: Relevant journal articles were obtained through PubMed and Google Scholar. Results: Experimental and clinical findings from the review show that PBM can stimulate the release of growth factors, including FGF, an essential cytokine in wound healing, and one which is present at lower concentrations in diabetic wounds. There is also activation of the Ras/MAPK signalling pathway. Conclusion: One mechanism through which healing may be stimulated by PBM is via the FGF-Ras/MAPK signalling pathway, although strong evidence under hyperglycaemic conditions is lacking.
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Affiliation(s)
| | - Nicolette N Houreld
- Laser Research Centre, University of Johannesburg, Johannesburg, South Africa
| | - Heidi Abrahamse
- Laser Research Centre, University of Johannesburg, Johannesburg, South Africa
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Wang L, Liu C, Song Y, Wu F. The effect of low-level laser irradiation on the proliferation, osteogenesis, inflammatory reaction, and oxidative stress of human periodontal ligament stem cells under inflammatory conditions. Lasers Med Sci 2022; 37:3591-3599. [DOI: 10.1007/s10103-022-03638-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 08/22/2022] [Indexed: 10/14/2022]
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Zhang Y, Guo Y, Wei W, Zhang Z, Xu X. Metabolomics profiling reveals berberine-inhibited inflammatory response in human gingival fibroblasts by regulating the LPS-induced apoptosis signaling pathway. Front Pharmacol 2022; 13:940224. [PMID: 36071855 PMCID: PMC9441553 DOI: 10.3389/fphar.2022.940224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Abstract
This article examines berberine’s biological effects and molecular mechanisms with an inflammatory response model induced by lipopolysaccharide (LPS) in human gingival fibroblasts (HGFs) using metabolomics. The viability of HGFs was determined using the cell counting kit-8 (CCK8). ELISA was used to measure inflammatory cytokines, including interleukin-6 (IL-6), interleukin-1β (IL-1β), and tumor necrosis factor- α (TNF-α). An investigation of western blots was conducted to investigate the related proteins of apoptosis. Low concentrations of berberine (0.1, 0.5, and 1 μmol L−1) did not affect HGF growth, whereas high concentrations of berberine (5–25 μmol L−1) significantly activated cell proliferation. Berberine suppressed the elevated secretion of IL-6, IL-1β, and TNF-α induced by LPS in HGF. Western blot analysis showed that 10 μmol L−1 of berberine significantly inhibited LPS-induced apoptosis signaling pathway activation. Our results suggested that berberine could inhibit LPS-induced apoptosis and the production of proinflammatory mediators in HGFs cells. Berberine may be a potential therapeutic drug for the management of periodontitis.
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Affiliation(s)
- Ying Zhang
- Department of Stomatology, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yanyang Guo
- Department of Stomatology, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wenjia Wei
- Department of Stomatology, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Wenjia Wei, ; Zhongxiao Zhang, ; Xiaodong Xu,
| | - Zhongxiao Zhang
- Hongqiao International Institute of Medicine, Tongren Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Wenjia Wei, ; Zhongxiao Zhang, ; Xiaodong Xu,
| | - Xiaodong Xu
- Department of Stomatology, Tongren Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
- *Correspondence: Wenjia Wei, ; Zhongxiao Zhang, ; Xiaodong Xu,
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12
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Low-power therapeutic lasers on mRNA levels. Lasers Med Sci 2022; 37:2353-2362. [PMID: 35288806 DOI: 10.1007/s10103-022-03541-z] [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: 09/30/2021] [Accepted: 03/07/2022] [Indexed: 10/18/2022]
Abstract
Gene expression evaluation in cells and biological tissues has been crucial for research in biology, medicine, biotechnology, and diagnostic. Messenger ribonucleic acid (mRNA) levels show relationship with gene expression, and they can be measured by real-time quantitative polymerase chain reaction (RT-qPCR) for the quantification of steady-state mRNA levels in cells and biological tissues. Radiations emitted from low-power lasers induce photobiomodulation, which is the base of therapeutic protocols for disease treatment. Despite that the understanding on photobiomodulation has been improved by mRNA level evaluation, laser irradiation parameters and procedures are diversified among studies, harming the comparison of RT-qPCR data. In this systematic review, data from mRNA levels reported in photobiomodulation studies were summarized regarding the process, function, and gene. Literature search was conducted for the assessment of published reports on mRNA levels evaluated by RT-qPCR in cells and biological tissues exposed to low-power lasers. Data showed that mRNA levels have been evaluated by RT-qPCR for a variety of genes related to molecular, cellular, and systemic processes after low-power violet-orange, red, and infrared laser exposure. Results from gene expression have increased the understanding of the mechanisms involved in photobiomodulation, and they can be useful to increase the efficacy and safety of clinical applications based on low-power lasers.
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The Effects of Photobiomodulation on Bone Defect Repairing in a Diabetic Rat Model. Int J Mol Sci 2021; 22:ijms222011026. [PMID: 34681687 PMCID: PMC8541159 DOI: 10.3390/ijms222011026] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 10/09/2021] [Accepted: 10/10/2021] [Indexed: 11/17/2022] Open
Abstract
The purpose of this study is to examine the prospective therapeutic effects of photobiomodulation on the healing of bone defects in diabetic mellitus (DM) using rat models to provide basic knowledge of photobiomodulation therapy (PBMT) during bone defect repair. For in vitro study, an Alizzarin red stain assay was used to evaluate the effect of PBMT on osteogenic differentiation. For in vivo study, micro-computed tomography (microCT) scan, H&E and IHC stain analysis were used to investigate the effect of PBMT on the healing of the experimental calvarial defect (3 mm in diameter) of a diabetic rat model. For in vitro study, the high glucose groups showed lower osteogenic differentiation in both irradiated and non-irradiated with PBMT when compared to the control groups. With the PBMT, all groups (control, osmotic control and high glucose) showed higher osteogenic differentiation when compared to the non-irradiated groups. For in vivo study, the hyperglycemic group showed significantly lower bone regeneration when compared to the control group. With the PBMT, the volume of bone regeneration was increasing and back to the similar level of the control group. The treatment of PBMT in 660 nm could improve the bone defect healing on a diabetic rat calvarial defect model.
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Reier S, Turyanskaya A, Heimel P, Frischauf N, Meusburger D, Heuser T, Drexler N, Janovszky Á, Streli C, Slezak P, Plochberger B, Dungel P, Szabó A, Walter A. Cross-modality imaging of bisphosphonate-treated murine jawbones. Analyst 2021; 146:4683-4699. [PMID: 34195707 DOI: 10.1039/d0an02373f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
In this proof-of-principle study, we established and implemented a cross-modality imaging (CMI) pipeline to characterize and compare bisphosphonate (BIS)-treated jawbones of Sprague-Dawley rats after tooth extraction after physical therapies (photobiomodulation and extracorporeal shockwave therapy (PBMT and ESWT)). We showcase the feasibility of such a CMI approach and its compatibility across imaging modalities to probe the same region of interest (ROI) of the same jawbone. Jawbones were imaged in toto in 3D using micro-Computed Tomography to identify ROIs for subsequent sequential 2D analysis using well-established technologies such as Atomic Force Microscopy and Scanning Electron Microscopy, and recent imaging approaches in biomedical settings, such as micro-X-Ray Fluorescence Spectroscopy. By combining these four modalities, multiscale information on the morphology, topography, mechanical stiffness (Young's modulus), and calcium, zinc and phosphorus concentrations of the bone was collected. Based on the CMI pipeline, we characterized and compared the jawbones of a previously published clinically relevant rat model of BIS-related osteonecrosis of the jawbone (BRONJ) before and after treatment with BISs, PBMT and ESWT. While we did not find that physical therapies altered the mechanical and elemental jawbone parameters with significance (probably due to the small sample size of only up to 5 samples per group), both ESWT and PBMT reduced pore thicknesses and bone-to-enamel distances significantly compared to the controls. Although focused on BIS-treated jawbones, the established CMI platform can be beneficial in the study of bone-related diseases in general (such as osteoarthritis or -porosis) to acquire complementary hallmarks and better characterize disease status and alleviation potentials.
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Affiliation(s)
- Susanne Reier
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
| | | | - Patrick Heimel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Trauma Research Center, Austrian BioImaging/CMI, Vienna, Austria and Core Facility Hard Tissue and Biomaterial Research, Karl Donath Laboratory, University Clinic of Dentistry, Medical University Vienna, Vienna, Austria
| | - Nikolaus Frischauf
- University of Applied Sciences Upper Austria, Austrian BioImaging/CMI, Vienna, Austria
| | - Daria Meusburger
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
| | - Thomas Heuser
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
| | - Nicole Drexler
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
| | - Ágnes Janovszky
- Department of Oral and Maxillofacial Surgery, University of Szeged, Hungary
| | | | - Paul Slezak
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Trauma Research Center, Austrian BioImaging/CMI, Vienna, Austria
| | - Birgit Plochberger
- University of Applied Sciences Upper Austria, Austrian BioImaging/CMI, Vienna, Austria
| | - Peter Dungel
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Trauma Research Center, Austrian BioImaging/CMI, Vienna, Austria
| | - Andrea Szabó
- Institute of Surgical Research, Faculty of Medicine, University of Szeged, Hungary
| | - Andreas Walter
- Austrian BioImaging/CMI, Vienna BioCenter Core Facilities GmbH (VBCF), Vienna, Austria.
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15
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Serrage HJ, Cooper PR, Palin WM, Horstman P, Hadis M, Milward MR. Photobiomodulation of oral fibroblasts stimulated with periodontal pathogens. Lasers Med Sci 2021; 36:1957-1969. [PMID: 33991267 PMCID: PMC8593050 DOI: 10.1007/s10103-021-03331-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Accepted: 05/03/2021] [Indexed: 01/03/2023]
Abstract
Photobiomodulation (PBM) utilises light energy to treat oral disease, periodontitis. However, there remains inconsistency in the reporting of treatment parameters and a lack of knowledge as to how PBM elicits its molecular effects in vitro. Therefore, this study aimed to establish the potential immunomodulatory effects of blue and near infra-red light irradiation on gingival fibroblasts (GFs), a key cell involved in the pathogenesis of periodontitis. GFs were seeded in 96-well plates in media + / - Escherichia coli lipopolysaccharide (LPS 1 μg/ml), or heat-killed Fusobacterium nucleatum (F. nucleatum, 100:1MOI) or Porphyromonas gingivalis (P. gingivalis, 500:1MOI). Cultures were incubated overnight and subsequently irradiated using a bespoke radiometrically calibrated LED array (400-830 nm, irradiance: 24 mW/cm2 dose: 5.76 J/cm2). Effects of PBM on mitochondrial activity (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) and adenosine triphosphate (ATP) assays, total reactive oxygen species production (ROS assay) and pro-inflammatory/cytokine response (interleukin-8 (IL-8) and tumour growth factor-β1 (TGFβ1)) were assessed 24 h post-irradiation. Data were analysed using one-way ANOVA followed by the Tukey test. Irradiation of untreated (no inflammatory stimulus) cultures at 400 nm induced 15%, 27% and 13% increases in MTT, ROS and IL-8 levels, respectively (p < 0.05). Exposure with 450 nm light following application of P. gingivalis, F. nucleatum or LPS induced significant decreases in TGFβ1 secretion relative to their bacterially stimulated controls (p < 0.001). Following stimulation with P. gingivalis, 400 nm irradiation induced 14% increases in MTT, respectively, relative to bacteria-stimulated controls (p < 0.05). These findings could identify important irradiation parameters to enable management of the hyper-inflammatory response characteristic of periodontitis.
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Affiliation(s)
- H J Serrage
- Oral Microbiology Unit, Department of Oral and Dental Science, University of Bristol, Bristol BS1 2LY, UK.
| | - P R Cooper
- School of Dentistry, University of Birmingham, Birmingham, UK
- Faculty of Dentistry, Department of Oral Biology, Sir John Walsh Research Institute University of Otago, Dunedin, New Zealand
| | - W M Palin
- School of Dentistry, University of Birmingham, Birmingham, UK
| | - P Horstman
- Philips Research, Eindhoven, Netherlands
| | - M Hadis
- School of Dentistry, University of Birmingham, Birmingham, UK
| | - M R Milward
- School of Dentistry, University of Birmingham, Birmingham, UK
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16
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Huang L, Zhong Y, Yan T, Liu Z, Yang B, Man MQ. Efficacy and safety of 755 nm Q-switched Alexandrite Laser for Hori's nevus: a retrospective analysis of 482 Chinese women. Lasers Med Sci 2021; 37:345-351. [PMID: 33834379 DOI: 10.1007/s10103-021-03257-6] [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: 12/03/2020] [Accepted: 01/19/2021] [Indexed: 11/25/2022]
Abstract
To evaluate the efficacy and safety of 755 nm Q-Switched alexandrite laser for Hori's nevus in a large cohort of Chinese women. We retrospectively analyzed the efficacy and safety of 755 nm Q-Switched alexandrite laser for Hori's nevus. Reduction in pigment was evaluated using a 4-score method. A total of 482 patients, aged 16 to 52 years, were included in this analysis. Patients were treated with 755 nm Q-Switched alexandrite laser at fluence levels of 5-8 J/cm2 for 2-4 treatment sessions. Following the treatments, 53% of patients showed over 75% reductions in pigment while 50-75% reductions in pigment were observed in 28% of patients. The rest displayed less than 50% improvements. Efficacy was positively correlated with the number of treatment sessions (p < 0.0001). Adverse reactions were temporary, mild erythema, and edema. A small portion of patients (15%) had hyperpigmentation, which disappeared within 2-6 months. 755 nm Q-Switched alexandrite laser is safe and has moderate benefits for Hori's nevus. Because its efficacy is positively correlated with the number of treatment sessions, increase in treatment sessions possibly could achieve a better outcome.
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Affiliation(s)
- Lining Huang
- Aesthetic Department, Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Yiping Zhong
- Aesthetic Department, Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Tingting Yan
- Aesthetic Department, Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Zhenfeng Liu
- Aesthetic Department, Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China
| | - Bin Yang
- Aesthetic Department, Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China.
| | - Mao-Qiang Man
- Aesthetic Department, Dermatology Hospital, Southern Medical University, Guangzhou, 510091, China.
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Mrasori S, Popovska M, Rusevska B, Shkreta M, Selani A, Bunjaku V. Effects of Low Level Laser Therapy (LLLT) on Serum Values of Interleukin 6 (IL-6) in Patients with Periodontitis and Type 2 Diabetes Mellitus (T2DM). Acta Inform Med 2021; 29:59-64. [PMID: 34012215 PMCID: PMC8116077 DOI: 10.5455/aim.2021.29.59-64] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/20/2021] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND In patients with T2DM, the therapeutic effects of conservative treatment are quite limited, and there is a need for additional therapeutic procedures to achieve the desired satisfactory and solid effect. Low-level laser therapy (LLLT) has an anti-inflammatory effect, and is used to heal lesions. This mechanism is realized through inhibition of lipopolysaccharides (LPS), so it can be used in the treatment of periodontal disease in patients with diabetes. OBJECTIVE The aim of this study is to assess the effect of level laser therapy (LLLT) on serum IL-6 values in patients with periodontitis and T2DM. METHODS Patients at age between 35-60 years old, with chronic periodontitis (CH) where the clinical loss of attachment (CAL) was ≥4 mm therefore covering at least 50 % of affected teeth. In this study we included 80 patients, divided into two groups: 40 patients with type 2 diabetes mellitus (2TDM) treated with conservative periodontal treatment supplemented with laser therapy (LLLT), group A, and 40 patients with 2TDM, conservatively treated without LLLT. therapy i.e. group B. The laser light was applied to the gingiva in separate quadrants in 5 sessions for the next five days in a row. Blood samples were taken from all subjects at the first treatment, then in 6 weeks and 3 months after treatment, and interleukin 6 (IL-6) levels were measured. The blood samples in the test tubes remained for about 30 minutes and were then distributed in a biochemical laboratory, where they were centrifuged at 6,000 rpm for 10 minutes. The serum was separated from the test tube and transferred to the eppendorph. All serum samples were stored at -80 ° C until complete analysis and determination of IL-6, according to the standardized methodology. RESULTS In group A, on the first examination serum IL-6 levels varies in the interval 11.54 ± 1.11 pg / mL, after 6 weeks of therapy the values range between 11.26 ± 0.77 pg / mL, and after 3 months of therapy levels oscillate at intervals of 11.02 ± 0.67 pg / mL. In group B the findings are similar. At the first examination, the serum IL-6 values were 11.56 ± 0.81 pg / mL, after 6 weeks of therapy ranged from 11.59 ± 0.71 pg / mL, and after 3 months of therapy levels were recorded at intervals. 11.41 ± 0.78 pg /mL. The serum IL-6 value after 6 weeks of therapy in patients in group B for Z = -2.04 and p <0.05 (p = 0.04) was significantly higher than in patients in group A, while after 3 months of therapy in patients in group B for Z = -2.42 and p <0.05 (p = 0.02) is significantly higher than the value in patients in group A. CONCLUSION LLLT resulted in significantly reduced serum IL-6 values in patients with periodontitis and T2DM after 6 weeks and 3 months of therapy in which conservative treatment was supplemented with LLLT.
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Affiliation(s)
- Shefqet Mrasori
- ALMA MATER EUROPEA Campus College “ Rezonanca “Faculty of Dentistry, Pristina, Republic Kosovo
| | - Mirjana Popovska
- Department of Oral Disease and Periodontology, Faculty of Dentistry. University “St. Cyril and Method”, Skopje, Republic of North Macedonia
| | - Biljana Rusevska
- Periodontology and Oral Disease Clinic, University Dentistry Clinical Center, Skopje, Skopje, Republic of North Macedonia
| | - Mirsad Shkreta
- UBT - Higher Education Institution - Faculty of Dentistry, Pristina, Republic Kosovo
| | - Ardian Selani
- ALMA MATER EUROPEA Campus College “ Rezonanca “Faculty of Dentistry, Pristina, Republic Kosovo
| | - Visar Bunjaku
- Department of Oral Disease and Periodontology, Faculty of Dentistry, UBT - Higher Education Institution, Pristina, Republic Kosovo
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Dalvi S, Benedicenti S, Hanna R. Effectiveness of Photobiomodulation as an Adjunct to Nonsurgical Periodontal Therapy in the Management of Periodontitis- A Systematic Review of in vivo Human Studies. Photochem Photobiol 2020; 97:223-242. [PMID: 33098680 DOI: 10.1111/php.13348] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 10/04/2020] [Accepted: 10/20/2020] [Indexed: 12/11/2022]
Abstract
Photobiomodulation therapy (PBMT) has anti-inflammatory, analgesic and regenerative properties. This systematic review aimed to critically appraise the published data of in vivo human randomized clinical trials (RCTs), and present a comprehensive overview of the efficacy of PBMT, as an adjunct to the nonsurgical periodontal therapy (NSPT) in the management of periodontitis. The systematic review protocol is registered in the Prospective Register Of Systematic Reviews (PROSPERO) (www.crd.york.ac.uk/PROSPERO/; ref CRD 42020169108). With the help of the appropriate key words, structured electronic and manual search strategies were applied to gather the relevant published data on in vivo human RCTs based on this topic. Seventeen papers that met the eligibility criteria were included in this review and subjected to a qualitative assessment. Current evidence lacks adequate information regarding the photobiomodulation (PBM) dosimetry, which is fundamental in establishing a standardized and replicable protocol for future researches. Furthermore, substantial discrepancies in the study methodology and a high risk of bias, arising from the majority of the included papers, abet to the inferior quality of these studies. Ultimately, there is an urgent necessity to conduct further well-designed RCTs in order to determine the effectiveness of PBMT, if any, by taking into consideration the abovementioned confounding factors.
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Affiliation(s)
- Snehal Dalvi
- Department of Surgical Sciences and Integrated Diagnostics, Laser Therapy Centre, University of Genoa, Genoa, Italy.,Department of Periodontology, Swargiya Dadasaheb Kalmegh Smruti Dental College and Hospital, Nagpur, Maharashtra, India
| | - Stefano Benedicenti
- Department of Surgical Sciences and Integrated Diagnostics, Laser Therapy Centre, University of Genoa, Genoa, Italy
| | - Reem Hanna
- Department of Surgical Sciences and Integrated Diagnostics, Laser Therapy Centre, University of Genoa, Genoa, Italy.,Department of Oral Surgery, University of Genoa and King's College, London, UK
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Al-Zawawi AS, Bukhari IA, Bello-Correa FO, Sheikh SA, Albaijan R, Vohra F. Influence of root debridement with adjunct photodynamic therapy on periodontal parameters and gingival crevicular fluid cortisol levels among patients with and without type-2 diabetes mellitus. Photodiagnosis Photodyn Ther 2020; 32:102076. [PMID: 33152543 DOI: 10.1016/j.pdpdt.2020.102076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 10/24/2020] [Accepted: 10/26/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The aim of the present study was to assess the influence of scaling and root planing (SRP) with adjunct antimicrobial photodynamic therapy (aPDT) on periodontal parameters and gingival crevicular fluid (GCF) cortisol levels in type-2 diabetic and non-diabetic patients with periodontitis. METHODS One hundred and twenty-eight patients with periodontitis (64 with and 64 without type-2 diabetes mellitus, respectively) were included. In the test- and control-groups, patients underwent SRP with and without aPDT, respectivey. In both groups, plaque and gingival indices (PI and GI), probing depth (PD), clinical attachment loss (CAL), marginal bone loss (MBL) and GCF volume and cortisol levels were assessed at baseline and three and six-months after SRP with or without aPDT. The aPDT was performed at baseline using methylene blue and photobiomodulation. The Kruskall-Wallis test was used to assess data normality; and group-comparisons were done. P-values, which were below 0.01 indicated statistical significance. RESULTS Sixty-four type-2 diabetic patients with and 64 non-diabetic patients with periodontitis were included. All individuals had Stage-III/Grade-C periodontitis. Among patients with type-2 diabetes mellitus (DM), there was no statistically significant difference in hemoblobin A1c, PI, GI, PD, CAL and MBL at baseline and at 3- and 6-months intervals. Amongst diabetic patietns, there was no difference in the GCF volume and cortisol levels in the test- and control-groups at all time intervals. In non-diabetic patients, there was a significqnt reductionin GCF volume and cortisol levels when SRP was done with aPDT than when SRP was carried out as the sole treatment strategy CONCLUSION: Among non-diabetic patients, SRP with aPDT helps reduce periodontal inflammation and GCF cortisol levels for up to 6-months; however poorly-controlled DM compromises the beneficial effects of this treatment strategy.
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Affiliation(s)
- Abeer S Al-Zawawi
- Department of Periodontics and Community Dentistry, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Ishfaq A Bukhari
- Department of Pharmacology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Fernanda O Bello-Correa
- Department of Dentistry, Life Sciecnes Institute, Federal University of Juiz de Fora, Governador Valadares, MG, Brazil
| | - Saeed A Sheikh
- Department of Pharmacology, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Refal Albaijan
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia
| | - Fahim Vohra
- Department of Prosthetic Dental Science, College of Dentistry, King Saud University, Riyadh, Saudi Arabia.
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Effect of photobiomodulation on CCC-ESF reactive oxygen species steady-state in high glucose mediums. Lasers Med Sci 2020; 36:555-562. [PMID: 32643032 DOI: 10.1007/s10103-020-03057-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 06/02/2020] [Indexed: 12/15/2022]
Abstract
Delayed wound healing is one of the most challenging complications of diabetes mellitus (DM) in clinical medicine, and it is related to the excessive generation of reactive oxygen species (ROS). Photobiomodulation (PBM) can promote wound healing in many ways, so it can be used as a method for the treatment of delayed healing of DM wounds. In this study, we investigated the effect of PBM on ROS homeostasis in human embryonic skin fibroblast cells (CCC-ESFs) cultured in high glucose concentrations. The CCC-ESFs were cultured in vitro and divided into two groups, including the control group and the 635 nm laser irradiation group. After 2 days of high glucose treatment, the experimental group was irradiated with different doses of laser for 3 days. First, we measured the cellular proliferation, and the results showed that laser irradiation could promote cellular proliferation. Then, we measured the generation of ROS, the activities of total superoxide dismutase (SOD), and total antioxidant capacity (TAC) of the cells; the results showed that high glucose destroyed cells by inducing high concentration of ROS, the balance of oxidation, and antioxidation cause oxidative stress damage to cells. PBM can increase the antioxidant capacity of cells, reducing the high concentration of ROS induced by high glucose. Finally, we measured the levels of mitochondrial membrane potential (∆ψm) and the secretion of nuclear factor kappa-B (NF-κB), tumor necrosis factor-α (TNF-α), and interleukin-1β (IL-1β); the results showed that PBM can reduce apoptosis and regulate the inflammatory state. We conclude that PBM can maintain the ROS homeostasis, increase the TAC of cells, and trigger the cellular proliferation, and the response of CCC-ESFs to PBM was dose-dependent.
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Applications of photobiomodulation in hearing research: from bench to clinic. Biomed Eng Lett 2019; 9:351-358. [PMID: 31456894 DOI: 10.1007/s13534-019-00114-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 04/28/2019] [Accepted: 06/04/2019] [Indexed: 02/06/2023] Open
Abstract
Hearing loss is very common and economically burdensome. No accepted therapeutic modality for sensorineural hearing loss is yet available; most clinicians emphasize rehabilitation, placing hearing aids and cochlear implants. Photobiomodulation (PBM) employs light energy to enhance or modulate the activities of specific organs, and is a popular non-invasive therapy used to treat skin lesions and neurodegenerative disorders. Efforts to use PBM to improve hearing have been ongoing for several decades. Initial in vitro studies using cell lines and ex vivo culture techniques have now been supplanted by in vivo studies in animals; PBM protects the sensory epithelium and triggers neural regeneration. Many reports have used PBM to treat tinnitus. In this brief review, we introduce PBM applications in hearing research, helpful protocols, and relevant background literature.
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Wei HJ, Liu L, Chen FL, Wang D, Wang L, Wang ZG, Jiang RC, Dong JF, Chen JL, Zhang JN. Decreased numbers of circulating endothelial progenitor cells are associated with hyperglycemia in patients with traumatic brain injury. Neural Regen Res 2019; 14:984-990. [PMID: 30762009 PMCID: PMC6404487 DOI: 10.4103/1673-5374.250577] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Hyperglycemia reduces the number of circulating endothelial progenitor cells, accelerates their senescence and impairs their function. However, the relationship between blood glucose levels and endothelial progenitor cells in peripheral blood of patients with traumatic brain injury is unclear. In this study, 101 traumatic brain injury patients admitted to the Department of Neurosurgery, Tianjin Medical University General Hospital or the Department of Neurosurgery, Tianjin Huanhu Hospital, China, were enrolled from April 2005 to March 2007. The number of circulating endothelial progenitor cells and blood glucose levels were measured at 1, 4, 7, 14 and 21 days after traumatic brain injury by flow cytometry and automatic biochemical analysis, respectively. The number of circulating endothelial progenitor cells and blood sugar levels in 37 healthy control subjects were also examined. Compared with controls, the number of circulating endothelial progenitor cells in traumatic brain injury patients was decreased at 1 day after injury, and then increased at 4 days after injury, and reached a peak at 7 days after injury. Compared with controls, blood glucose levels in traumatic brain injury patients peaked at 1 day and then decreased until 7 days and then remained stable. At 1, 4, and 7 days after injury, the number of circulating endothelial progenitor cells was negatively correlated with blood sugar levels (r = −0.147, P < 0.05). Our results verify that hyperglycemia in patients with traumatic brain injury is associated with decreased numbers of circulating endothelial progenitor cells. This study was approved by the Ethical Committee of Tianjin Medical University General Hospital, China (approval No. 200501) in January 2015.
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Affiliation(s)
- Hui-Jie Wei
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Li Liu
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Fang-Lian Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Dong Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Liang Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin; Department of Neurosurgery, Peking University International Hospital, Beijing, China
| | - Zeng-Guang Wang
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Rong-Cai Jiang
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
| | - Jing-Fei Dong
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China; Thrombosis Research Section, Department of Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Jie-Li Chen
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China; Department of Neurology, Henry Ford Health System, Detroit, MI, USA
| | - Jian-Ning Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital; Tianjin Neurological Institute; Key Laboratory of Post-trauma Neuro-repair and Regeneration in Central Nervous System, Ministry of Education; Tianjin Key Laboratory of Injuries, Variations and Regeneration of Nervous System, Tianjin, China
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