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Efficacy Evaluation of Human Skin Treatment with Photodynamic Therapy in Actinic Keratoses Patients. 用光动力疗法治疗人类皮肤角化病的疗效评估。
IF 1.5 Q2 Medicine Pub Date : 2023-11-29 eCollection Date: 2023-01-01 DOI: 10.34172/jlms.2023.60
Zahra Razzaghi, Babak Arjmand, Maryam Hamzeloo-Moghadam, Mostafa Rezaei Tavirani, Mona Zamanian Azodi

Introduction: Photodynamic therapy (PDT) is a combined method of light and light-activated chemicals that are called photosensitizers (PSs). PDT is recommended as a high cure rate method with fewer side effects and a noninvasive tool to treat cancer. This study aimed to evaluate PDT efficacy as a therapeutic method against actinic keratoses in patients via protein-protein interaction (PPI) network analysis by using the gene expression profiles of Gene Expression Omnibus (GEO). Methods: Twenty-one gene expression profiles were extracted from GEO and analyzed by GEO2R to determine the significant differentially expressed genes (DEGs). The significant DEGs were included in PPI networks via Cytoscape software. The networks were analyzed by the "Network Analyzer", and the elements of the main connected components were assessed. Results: There were three main connected components for the compared sets of the gene expression profiles including the lesional region of skin before (Before set) and after (After set) PDT versus healthy (healthy set) skin and before versus after. The before-health comparison showed a partial similarity with the After-Healthy assessment. The before-after evaluation indicated that there were not considerable differences between the gene expression profile of the lesional region before and after PDT. Conclusion: In conclusion, PDT was unable to return the gene expression pattern of the actinic keratoses skin to a healthy condition completely.

引言光动力疗法(PDT)是一种结合光和光激活化学物质的方法,这些化学物质被称为光敏剂(PSs)。光动力疗法是一种治愈率高、副作用小的非侵入性癌症治疗方法。本研究旨在利用基因表达总库(Gene Expression Omnibus,GEO)的基因表达谱,通过蛋白-蛋白相互作用(PPI)网络分析,评估 PDT 作为一种治疗方法对患者光化性角化病的疗效。方法从 GEO 中提取 21 个基因表达谱,并用 GEO2R 进行分析,以确定显著的差异表达基因(DEGs)。通过 Cytoscape 软件将重要的 DEGs 纳入 PPI 网络。利用 "网络分析器 "对网络进行分析,并评估主要连接成分的元素。结果基因表达谱的比较集有三个主要连接成分,包括 PDT 治疗前(治疗前集)和治疗后(治疗后集)皮肤病变区域与健康(健康集)皮肤以及治疗前与治疗后。健康前对比与健康后评估显示出部分相似性。前后评估表明,PDT 前后病变区域的基因表达谱差异不大。结论总之,光动力疗法无法使光化性角化病皮肤的基因表达模式完全恢复到健康状态。
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引用次数: 0
Assessment of the Response of Human Umbilical Vein Endothelial Cells to Photodynamic Therapy: Highlighting the Role of Il-17 Signaling Pathway. 评估人脐静脉内皮细胞对光动力疗法的反应:强调 Il-17 信号通路的作用
IF 1.5 Q2 Medicine Pub Date : 2023-11-28 eCollection Date: 2023-01-01 DOI: 10.34172/jlms.2023.59
Mona Zamanian Azodi, Babak Arjmand, Maryam Hamzeloo-Moghadam, Mostafa Rezaei Tavirani, Zahra Razzaghi, Alireza Ahmadzadeh, Reza M Robati, Majid Rezaei Tavirani

Introduction: Photodynamic therapy (PDT) is a method based on the application of a photosensitive agent and the administration of light irradiation on the treated samples. PDT is applied as an effective tool with minimal side effects against tumor tissues. This study aimed to assess the targets of critical genes by PDT at the cellular level of cancer to provide a new perspective on its molecular mechanism. Methods: To assess the effect of PDT, we extracted the differentially expressed genes (DEGs) from the gene expression profiles of human umbilical vein endothelial cells (HUVECs) treated with PDT from Gene Expression Omnibus (GEO) databases. The queried DEGs were evaluated via a regulatory network and gene ontology enrichment to find the critical targets. Results: Among 76 queried significant DEGs, 27 individuals were interacted by activation, inhibition, and co-expression actions. Thirty DEGs were related to the five classes of biological terms. The IL-17 signaling pathway and PTGS2, CXCL8, FOS, JUN, CXCL1, ZFP36, and FOSB were identified as the crucial targets of PDT. Conclusion: PDT as a stimulator of gene expression and an activator of gene activity overexpressed and hyper-activated many genes. It seems that PDT introduces a number of genes and pathways that can be regulated by anticancer drugs to fight against cancers.

引言光动力疗法(PDT)是一种应用光敏剂并对治疗样本进行光照射的方法。光动力疗法是一种有效的工具,对肿瘤组织的副作用极小。本研究旨在评估 PDT 在癌症细胞水平上的关键基因靶点,从而为其分子机制提供一个新的视角。研究方法为了评估光动力疗法的效果,我们从基因表达总库(GEO)数据库中提取了经光动力疗法处理的人脐静脉内皮细胞(HUVECs)基因表达谱中的差异表达基因(DEGs)。通过调控网络和基因本体富集对所查询的 DEGs 进行评估,以找到关键靶点。结果在查询到的 76 个重要 DEGs 中,有 27 个存在激活、抑制和共表达作用。30个DEG与五类生物学术语相关。IL-17信号通路和PTGS2、CXCL8、FOS、JUN、CXCL1、ZFP36和FOSB被确定为PDT的关键靶点。结论作为基因表达的刺激物和基因活性的激活剂,PDT 过度表达和过度激活了许多基因。看来,PDT 引入了许多基因和通路,这些基因和通路可由抗癌药物调控,以对抗癌症。
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引用次数: 0
Effect of Low-Level Laser Irradiation (810 nm) on the Proliferation and Differentiation of Osteoblast-Like Cells Cultured on SLA Titanium Discs Exposed to a Peri-implantitis Environment. 低水平激光照射(810 纳米)对暴露于种植体周围环境的 SLA 钛盘上培养的类成骨细胞的增殖和分化的影响。
IF 1.5 Q2 Medicine Pub Date : 2023-11-26 eCollection Date: 2023-01-01 DOI: 10.34172/jlms.2023.57
Evangelia P Zampa, Kyriaki Kyriakidou, Joseph Papaparaskevas, Eudoxie Pepelassi, Ioannis K Karoussis

Introduction: Elimination of inflammation and re-osseointegration are the major objectives of peri-implantitis therapy. Existing data, however, do not support any decontamination approach. Thus, the present in vitro study aims to assess whether the air-debriding decontamination method with erythritol powder restores the biocompatibility of infected titanium discs and to investigate the potent biomodulatory ability of diode laser (810 nm) irradiation to promote cell proliferation and differentiation of premature osteoblast-like cells (MG63) towards osteocytes. Methods: The experimental groups consisted of cells seeded on titanium discs exposed or not in a peri-implantitis environment with or without biomodulation. Infected discs were cleaned with airflow with erythritol powder. Cell cultures seeded on tricalcium phosphate (TCP) surfaces with or without biomodulation with a laser (810 nm) were used as controls. The study evaluated cell viability, proliferation, adhesion (SEM) at 24, 48 and 72 hours, and surface roughness changes (profilometry), as well as the effects of low-level laser therapy (LLLT) on ALP, OSC, TGF-b1, Runx2, and BMP-7 expression in MG63 cells' genetic profile on days 7, 14, and 21. Results: The MTT assay as well as the FDA/PI method revealed that cell proliferation did not show significant differences between sterile and decontaminated discs at any timepoint. SEM photographs on day 7 showed that osteoblast-like cells adhered to both sterile and disinfected surfaces, while surface roughness did not change based on amplitude parameters. The combination of airflow and LLLT revealed a biomodulated effect on the differentiation of osteoblast-like cells with regard to the impact of laser irradiation on the genetic profile of the MG63 cells. Conclusion: In all groups tested, osteoblast-like cells were able to colonize, proliferate, and differentiate, suggesting a restoration of biocompatibility of infected discs using airflow. Furthermore, photomodulation may promote the differentiation of osteoblast-like cells cultured on both sterile and disinfected titanium surfaces.

简介消除炎症和重新接合是种植体周围炎治疗的主要目标。然而,现有数据并不支持任何去污方法。因此,本体外研究旨在评估使用赤藓糖醇粉进行空气去污的方法是否能恢复受感染钛盘的生物相容性,并研究二极管激光(810 纳米)照射促进细胞增殖和过早成骨细胞样细胞(MG63)向骨细胞分化的强大生物调节能力。实验方法实验组由在种植体周围炎环境中暴露或未暴露的钛盘上播种的细胞组成,有无生物调制均可。感染的钛盘用赤藓糖醇粉进行气流清洗。在磷酸三钙(TCP)表面播种的细胞培养物作为对照,使用或不使用激光(810 纳米)进行生物调节。研究评估了细胞活力、增殖、24、48 和 72 小时的粘附性(SEM)、表面粗糙度变化(轮廓仪),以及低强度激光疗法(LLLT)对第 7、14 和 21 天 MG63 细胞基因图谱中 ALP、OSC、TGF-b1、Runx2 和 BMP-7 表达的影响。结果MTT 检测法和 FDA/PI 法显示,无菌盘和去污盘在任何时间点的细胞增殖均无明显差异。第 7 天的扫描电子显微镜照片显示,成骨细胞样细胞粘附在无菌和消毒表面,而表面粗糙度根据振幅参数没有变化。气流和 LLLT 的结合显示了对成骨细胞样细胞分化的生物调节作用,以及激光照射对 MG63 细胞遗传特征的影响。结论在所有测试组中,成骨细胞都能定植、增殖和分化,这表明使用气流可恢复受感染椎间盘的生物相容性。此外,光调节可促进在无菌和消毒钛表面培养的成骨细胞的分化。
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引用次数: 0
Use of Phototherapy and Er-YAG Laser in the Management of Mandible Osteoradionecrosis: A Case Report. 使用光疗和 Er-YAG 激光治疗下颌骨骨坏死:病例报告。
IF 1.5 Q2 Medicine Pub Date : 2023-11-26 eCollection Date: 2023-01-01 DOI: 10.34172/jlms.2023.58
Larissa Couto de Freitas, Elenice Lika Kawamoto, Ana Maria Aparecida Souza, Paulo Yataro Kawakami, Alyne Simões Gonçalves, Luciane Hiramatsu Azevedo

Introduction: Osteoradionecrosis (ORN) is a secondary complication from radiotherapy, which is difficult to manage and significantly reduces the life quality of the affected patients. Case Report: A 59-year-old female patient, diagnosed with infiltration by squamous cell carcinoma in the left cervical region, underwent adjuvant cervical-facial radiotherapy with a total dose of 66.6 Gy of radiation. Eight years after the diagnosis, the patient underwent multiple extractions and, subsequently, the installation of osseointegrated implants, evolving to extensive intraoral bone exposure associated with oral cutaneous fistula. The patient was initially exposed to photobiomodulation therapy (PBMT), with a low-power laser at wavelengths of 660 nm and 808 nm, and thereafter to antimicrobial photodynamic therapy (aPDT). After an improvement in the clinical condition and resolution of the oral cutaneous fistula, a surgical procedure with the Er: YAG laser was performed to remove the remaining necrotic bone. Once the ORN condition was completely treated, the patient's oral rehabilitation was implemented by the installation of an upper mucous-supported total prosthesis and a lower implant-supported prosthesis. Conclusion: The patient is in a clinical follow-up and has no signs of bone necrosis recurrence, suggesting that low and high-power laser treatment can be an effective therapeutic alternative to resolve this condition.

简介骨坏死(ORN)是放疗的一种继发性并发症,难以控制,严重降低了患者的生活质量。病例报告:一名 59 岁的女性患者被诊断为左颈部鳞状细胞癌浸润,接受了总剂量为 66.6 Gy 的颈面部辅助放疗。确诊八年后,患者接受了多次拔牙手术,随后又安装了骨结合种植体,导致口内骨质广泛暴露,并伴有口腔皮肤瘘。患者最初接受了波长为 660 纳米和 808 纳米的低功率激光的光生物调节疗法(PBMT),之后又接受了抗菌光动力疗法(aPDT)。在临床症状改善、口腔皮肤瘘消退后,使用 Er: YAG 激光进行了手术,切除了剩余的坏死骨头。口腔瘘管病症得到彻底治疗后,为患者安装了上部粘液支持的全口义齿和下部种植支持的义齿,从而实现了口腔康复。结论:该患者目前正在接受临床随访,没有骨坏死复发的迹象,这表明低功率和高功率激光治疗是解决这一问题的有效治疗方法。
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引用次数: 0
Evaluation of the Effect of NovaMin and Er,Cr:YSGG Laser on Remineralization of Erosive Lesions of Primary Enamel Teeth: An In Vitro Study. 评估 NovaMin 和 Er,Cr:YSGG 激光对原生釉质牙齿腐蚀性病变再矿化的影响:体外研究。
IF 1.5 Q2 Medicine Pub Date : 2023-11-13 eCollection Date: 2023-01-01 DOI: 10.34172/jlms.2023.56
Yoones Sadabadi, Majid Mehran, Mohammad Bagher Rezvani, Mohammad Asnaashari, Roza Haghgoo

Introduction: The purpose of this in vitro study is to ascertain how NovaMin and Er,Cr:YSGG laser radiation affect the remineralization of primary tooth enamel lesions. Methods: 40 main teeth served as the study's sample size. These teeth were allocated into five groups at random. The first group served as a negative control (artificial saliva); the second group served as a positive control (APF gel 1.23%); the third group NovaMin, the fourth group Er,Cr:YSGG laser, the fifth group Er,Cr:YSGG laser and finally, the application of NovaMin. For the purpose of measuring microhardness, all samples were submitted to the dental materials laboratory three times. Results: The collected data were compared using the SPSS 28 program between the baseline measurement, after demineralization, and after remineralization. The data were analyzed using ANCOVA and Bonferroni tests. All groups demonstrated a considerable increase in microhardness as compared to the negative control group (P<0.05). With the exception of the third and fourth groups, there was no discernible difference in the rise in microhardness between the other groups. The third and fourth groups were compared, and the results revealed that NovaMin had a greater impact than laser therapy alone (P=0.023). Scanning electron microscopy (SEM) analysis backed up the findings. Conclusion: In comparison to using the Er,Cr:YSGG laser alone, using NovaMin alone can speed up the remineralization of erosion lesions on the surface of primary teeth.

简介本体外研究的目的是确定 NovaMin 和 Er,Cr:YSGG 激光辐射如何影响基牙釉质病变的再矿化。方法:本研究的样本量为 40 颗主要牙齿。这些牙齿被随机分为五组。第一组为阴性对照(人工唾液);第二组为阳性对照(APF 凝胶 1.23%);第三组为 NovaMin;第四组为 Er,Cr:YSGG 激光;第五组为 Er,Cr:YSGG 激光;最后一组为 NovaMin。为了测量显微硬度,所有样品都被送往牙科材料实验室进行了三次测量。结果:使用 SPSS 28 程序比较了基线测量、脱矿和再矿化后的数据。数据采用方差分析和 Bonferroni 检验进行分析。与阴性对照组相比,所有组的显微硬度都有显著提高(PP=0.023)。扫描电子显微镜(SEM)分析证实了这一结果。结论与单独使用 Er,Cr:YSGG激光相比,单独使用 NovaMin 可以加速乳牙表面侵蚀病灶的再矿化。
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引用次数: 0
A Brief Review of Low-Level Light Therapy in Depression Disorder. 低强度光治疗抑郁症的研究进展
IF 1.5 Q2 Medicine Pub Date : 2023-11-11 eCollection Date: 2023-01-01 DOI: 10.34172/jlms.2023.55
Afshan Shirkavand, Maryam Akhavan Tavakoli, Zeinab Ebrahimpour

Introduction: Low-level laser therapy (LLLT), also called Photobiomodulation, has gained widespread acceptance as a mainstream modality, particularly in the form of photobiostimulation (PBM). Here in our review, we aim to present the application of LLLT to help with depression, explore potential action mechanisms and pathways, discuss existing limitations, and address the challenges associated with its clinical implementation. Methods: In biological systems, the visible light with a wavelength range of 400-700 nm activates photoreceptors involved in vision and circadian rhythm regulation. The near-infrared (NIR) light with a wavelength range of 800-1100 nm exhibits superior tissue penetration capabilities compared to the visible light, which enables the non-invasive application of LLLT to various tissues. Results: By enhancing adenosine triphosphate (ATP) production using the respiratory chain, LLLT is able to enhance blood flow, reduce inflammation, support repair and healing, and enhance stem cell growth and proliferation. Preclinical studies using animal models have shown promising neuroprotective effects of the LLLT method on central nervous system (CNS) diseases, suggesting potential improvements in brain function for patients suffering from Alzheimer's disease. In addition, it helps Parkinson's patients with their movement problems and ameliorates mental disorders in individuals with depression. Conclusion: patients' quality of life can be significantly enhanced. A comprehensive understanding of the protective effects and underlying mechanisms of LLLT will facilitate its therapeutic application in the future.

引言:低水平激光治疗(LLLT),也称为光生物调节,作为一种主流治疗方式已被广泛接受,尤其是光生物刺激(PBM)。在我们的综述中,我们旨在介绍LLLT在抑郁症中的应用,探索潜在的作用机制和途径,讨论现有的局限性,并解决与临床实施相关的挑战。方法:在生物系统中,波长范围为400 ~ 700 nm的可见光激活参与视觉和昼夜节律调节的光感受器。与可见光相比,波长范围为800-1100 nm的近红外(NIR)光具有优越的组织穿透能力,这使得LLLT在各种组织中的非侵入性应用成为可能。结果:通过呼吸链促进三磷酸腺苷(ATP)的产生,LLLT能够促进血液流动,减少炎症,支持修复和愈合,促进干细胞生长和增殖。动物模型的临床前研究显示,LLLT方法对中枢神经系统(CNS)疾病具有良好的神经保护作用,提示阿尔茨海默病患者的脑功能可能得到改善。此外,它还能帮助帕金森患者解决运动问题,并改善抑郁症患者的精神障碍。结论:可显著提高患者的生活质量。全面了解LLLT的保护作用和潜在机制将有助于其在未来的治疗应用。
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引用次数: 0
Non-thermal CO2 Laser Therapy (NTCLT): A Novel Photobiomodulative Approach for Immediate Pain Relief of Patchy Oral Mucositis Due to Chemotherapy of Solid Tumors 非热CO2激光治疗(NTCLT):一种新的光生物调节方法,可立即缓解实体肿瘤化疗引起的斑片状口腔黏膜炎的疼痛
Q2 Medicine Pub Date : 2023-11-08 DOI: 10.34172/jlms.2023.54
Nasrin Zand, Safa Najafi, Mohsen Fateh, Jila Sadighi, Parvin Mansouri, Mohammad Farhadi, Leila Ataie-Fashtami, Alireza Nikoofar, Hoda Mahdavi, Afshan Shirkavand
Introduction: Chemotherapy-induced oral mucositis (COM) is a prominent complication of chemotherapy (CT). Non-thermal CO2 laser therapy (NTCLT) has been demonstrated as an innovative and safe photobiomodulative approach in some kinds of painful oral lesions. The purpose of this study was to evaluate the palliative effects of one session of NTCLT on COM lesions. Methods: Patients with painful COM (WHO grade:≥2) were included in this before-after clinical trial based on the eligibility criteria. The oral lesions were irradiated with a CO2 laser (power: 1 W, scanning the lesions with the rapid circular motion of the defocused handpiece) through a thick layer (3-4 mm) of a transparent gel containing a high-water content. The severity of pain in the lesions was self-assessed using a 0-to-10 visual analogue scale (VAS) for 7 consecutive days. The evaluating physician visited the patients on the 3rd and 7th days in search of any kind of complications. Results: Seventeen adult patients with 35 patches of OM due to chemotherapy of solid tumors completed the trial. Immediately after NTCLT, the mean for non-contact VAS pain scores of the lesions significantly declined from 4.91±2.356 to 0.29±0.622 (P<0.001) and the mean for contact VAS pain scores from 7.77±1.57 to 1.31±1.18 (P<0.001). The mean VAS pain scores of the lesions showed statistically significant differences between the follow-up periods compared to the baseline (P<0.001). The process was completely pain-free and required no anesthesia. After NTCLT, no kind of thermal adverse effects such as irritation, destruction, aggravation and even erythema were observed. Conclusion: Based on the results of this before-after clinical trial, NTCLT has the potential to be considered as a non-invasive and safe palliative option for the pain management of patchy OM due to chemotherapy of solid tumors.
化疗引起的口腔黏膜炎(COM)是化疗(CT)的重要并发症。非热CO2激光治疗(NTCLT)已被证明是一种创新的、安全的光生物调节治疗口腔疼痛病变的方法。本研究的目的是评估一次NTCLT对COM病变的姑息作用。方法:根据入选标准,将疼痛性COM患者(WHO分级:≥2)纳入前后对照临床试验。口腔病变用CO2激光照射(功率为1 W,用离焦机头快速圆周运动扫描病变),通过一层厚(3-4 mm)的高含水量透明凝胶照射。连续7天,采用0- 10视觉模拟评分(VAS)自评病变疼痛的严重程度。评估医师在第3天和第7天访问患者,以寻找任何并发症。结果:17例因实体瘤化疗导致的35片OM的成人患者完成了试验。NTCLT后即刻,病变非接触性VAS疼痛评分均值由4.91±2.356下降至0.29±0.622 (P<0.001),接触性VAS疼痛评分均值由7.77±1.57下降至1.31±1.18 (P<0.001)。与基线相比,随访期间病变的平均VAS疼痛评分具有统计学意义(P<0.001)。这个过程是完全无痛的,不需要麻醉。NTCLT后未见刺激、破坏、加重甚至红斑等热不良反应。结论:基于这项前后对照临床试验的结果,NTCLT有可能被认为是一种非侵入性和安全的姑息治疗选择,用于治疗实体瘤化疗引起的斑块性OM的疼痛管理。
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引用次数: 0
Assessment of Photosensitizer Concentration Effects on the Efficacy of Photodynamic Therapy 光敏剂浓度对光动力治疗效果影响的评价
Q2 Medicine Pub Date : 2023-11-08 DOI: 10.34172/jlms.2023.53
Reza Vafaee, Babak Arjmand, Maryam Hamzeloo-Moghadam, Mostafa Rezaei Tavirani, Zahra Razzaghi, Reza M Robati, Mitra Rezaei, Fatemeh Montazer
Introduction: Photodynamic therapy (PDT) is an attractive approach in medicine. Due to its noninvasive nature and low side effects, PDT has been developed quickly. In the present study, the gene expression profiles of the human cell line that was treated via PDT in the sub-lethal concentration (LC50) and super-lethal concentration (LC90) of a photosensitizer (PS) from Gene Expression Omnibus (GEO) were extracted and the common differentially expressed genes (DEGs) were investigated. Methods: The gene expression profiles of the treated cells were compared with a control, and the common DEGs were determined. The common DEGs were assessed via protein-protein interaction (PPI) network analysis, and gene ontology enrichment was evaluated. The related biological terms for the common genes were identified. Results: Ninety-four common DEGs were selected to be analyzed. It appeared that the activation and increment of gene expression were prominent processes. Jun, Dusp1, Atf4, and Atf3 as four critical genes were highlighted. "Chromosomal and microsatellite instability in colorectal cancer" was identified as the main class of biological terms related to the assessed DEGs. Conclusion: The major molecular events which happened in both analyses indicated that PDT, independent from the concentration of PS, induced gross molecular changes such as the upregulation of Jun and Dusp1.
光动力疗法(PDT)是一种很有吸引力的医学方法。由于其无创性和低副作用,PDT得到了迅速的发展。本研究提取了来自gene expression Omnibus (GEO)的一种光敏剂(PS)在亚致死浓度(LC50)和超致死浓度(LC90)下经PDT处理的人细胞系的基因表达谱,并研究了常见差异表达基因(DEGs)。方法:将处理细胞的基因表达谱与对照组进行比较,并测定常见的deg。通过蛋白质-蛋白质相互作用(PPI)网络分析对常见的deg进行评估,并对基因本体富集进行评估。对常见基因的相关生物学术语进行了鉴定。结果:选取94例常见deg进行分析。基因表达的激活和增加是一个突出的过程。Jun、Dusp1、Atf4和Atf3是四个关键基因。“结直肠癌的染色体和微卫星不稳定性”被确定为与评估的deg相关的主要生物学术语。结论:两个分析中发生的主要分子事件表明,PDT诱导Jun和Dusp1上调等总体分子变化不依赖于PS的浓度。
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引用次数: 0
In Vitro Comparative Evaluation of the Efficacy of Antimicrobial Photodynamic Therapy, Chlorhexidine, Sodium Fluoride, and Hydrogen Peroxide for Acrylic Resin Disinfection 抗菌光动力疗法、氯己定、氟化钠和过氧化氢对丙烯酸树脂消毒效果的体外比较评价
Q2 Medicine Pub Date : 2023-11-04 DOI: 10.34172/jlms.2023.52
Farhad Sobouti, Sepideh Dadgar, Aysan Salehi, Nika Rezaei Kalantari, Mehdi Aryana, Hamid Reza Goli, Mohadeseh Heidari
Introduction: Plaque accumulation on the surface of removable orthodontic appliances could lead to dental caries, periodontitis, and fungal infections. This study evaluated the effectiveness of antimicrobial photodynamic therapy (aPDT), chlorhexidine (CHX), sodium fluoride (NaF), and hydrogen peroxide (H2 O2 ) for the disinfection of acrylic resin. Methods: In this in vitro experimental study, 100 acrylic resin specimens were randomly divided into five groups (n=20 each): Enterococcus faecalis, Streptococcus mutans, Streptococcus salivarius, Streptococcus sanguinis, and Lactobacillus acidophilus. Each group was immersed separately in 5 mL of microbial suspension. They were then incubated until biofilm formation on their surface. Of each microorganism, one biofilm sample in phosphate-buffered saline was considered as negative control, and other biofilm samples (n=80) were subjected to aPDT with curcumin, 0.12% CHX (positive control), 1% H2 O2 , and 0.2% NaF. Finally, the number of colonies was counted. Data were analyzed by the Kruskal-Wallis and Mann-Whitney tests, two-way ANOVA, and Bonferroni adjustment at a significance level of 0.05. Results: The interaction effect of the treatment modality and type of microorganism was significant on the microbial count (effect size: 0.91, P<0.05). Maximum bacterial proliferation was noted in the following combinations: NaF/E. faecalis, H2 O2 /E. faecalis, and H2 O2 /S. salivarius. Microorganisms had no or insignificant growth and proliferation in the aPDT and CHX groups. Conclusion: The results supported the optimal antimicrobial efficacy of PDT which was comparable to that of CHX. aPDT showed superior antimicrobial efficacy to NaF and H2 O2 for the disinfection of acrylic resin.
牙菌斑在可移动的正畸矫治器表面堆积会导致龋齿、牙周炎和真菌感染。本研究评价了抗菌光动力疗法(aPDT)、氯己定(CHX)、氟化钠(NaF)和过氧化氢(H2 O2)对丙烯酸树脂的消毒效果。方法:采用体外实验方法,将100份丙烯酸树脂标本随机分为粪肠球菌、变形链球菌、唾液链球菌、血链球菌和嗜酸乳杆菌5组,每组20例。各组分别浸于5 mL微生物悬液中。然后将它们孵育至表面形成生物膜。每一种微生物取一份生物膜样品作为阴性对照,其余生物膜样品(n=80)分别用姜黄素、0.12% CHX(阳性对照)、1% H2 O2和0.2% NaF进行aPDT处理。最后,计算殖民地的数量。数据分析采用Kruskal-Wallis检验和Mann-Whitney检验、双向方差分析和Bonferroni调整,显著性水平为0.05。结果:处理方式和微生物类型对微生物数量的交互作用显著(效应值:0.91,P<0.05)。NaF/E组合中细菌增殖量最大。粪,H2 O2 /E。和H2 O2 /S。了唾液。aPDT组和CHX组微生物没有或不显著生长和增殖。结论:PDT具有与CHX相当的最佳抑菌效果。aPDT对丙烯酸树脂的消毒效果优于NaF和H2 O2。
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引用次数: 0
Exploring the Efficacy of Fractional Carbon Dioxide Laser as an Add-on Combination to Conventional Therapies for Treatment-Resistant Vitiligo (A Review Article) 部分二氧化碳激光辅助治疗难治性白癜风的疗效探讨(综述)
Q2 Medicine Pub Date : 2023-11-01 DOI: 10.34172/jlms.2023.51
Parvin Mansouri, Mohammadreza Rahbar, Mohammad Ali Nilforoushzadeh, Mohsen Shati
Introduction: Vitiligo, a dermatological disorder that leads to depigmented skin patches, presents a significant challenge, particularly in resistant areas such as acral regions. Fractional CO2 laser therapy holds promise as an adjunct to conventional treatment, enhancing repigmentation. This review comprehensively explores its efficacy and safety in resistant-to-treatment vitiligo. Methods: We conducted extensive database searches in PubMed, Embase, and Cochrane, focusing on English-language literature published between 2012 and 2023. We included comparative studies that met the following criteria: (1) Participants had non-segmental vitiligo, with resistant-to-treatment localization engagement; (2) The treatment involved the use of fractional CO2 laser in combination with conventional therapies; and (3) Outcomes were assessed based on the repigmentation ratio or significant difference. We excluded studies from which data from published results could not be extracted. Results: After extensive screening of 52 articles, we finally selected five studies. The results showed that fractional CO2 laser therapy, when combined with other treatments, often shows promise in vitiligo treatment in refractory cases. Although individual responses varied, overall efficacy and safety were promising, with minimal adverse effects and no severe complications. Conclusion: The fractional CO2 laser, when used in conjunction with conventional therapies, emerges as a promising option for treating refractory vitiligo. Large-scale randomized trials and a deeper understanding of the underlying mechanisms are vital for future progress in optimizing treatment protocols, case selection, and safety.
简介:白癜风是一种皮肤病,可导致皮肤色素沉着,是一项重大挑战,特别是在耐药区域,如肢端区域。分数CO2激光治疗有望作为常规治疗的辅助手段,增强色素沉着。本文就其治疗白癜风的疗效和安全性进行综述。方法:我们在PubMed、Embase和Cochrane中进行了广泛的数据库检索,重点是2012年至2023年间发表的英语文献。我们纳入了符合以下标准的比较研究:(1)参与者患有非节段性白癜风,具有抵抗治疗的局部参与;(2)在常规治疗的基础上,采用CO2激光辅助治疗;(3)根据再色素沉着率或显著性差异评估结果。我们排除了无法从已发表结果中提取数据的研究。结果:经过对52篇文章的广泛筛选,我们最终选择了5篇研究。结果表明,当与其他治疗方法结合时,分数CO2激光治疗通常在难治性白癜风治疗中显示出希望。尽管个体反应不同,但总体疗效和安全性是有希望的,副作用最小,没有严重的并发症。结论:分数CO2激光,当与常规疗法联合使用时,成为治疗难治性白癜风的一个有希望的选择。大规模随机试验和对潜在机制的深入了解对于优化治疗方案、病例选择和安全性的未来进展至关重要。
{"title":"Exploring the Efficacy of Fractional Carbon Dioxide Laser as an Add-on Combination to Conventional Therapies for Treatment-Resistant Vitiligo (A Review Article)","authors":"Parvin Mansouri, Mohammadreza Rahbar, Mohammad Ali Nilforoushzadeh, Mohsen Shati","doi":"10.34172/jlms.2023.51","DOIUrl":"https://doi.org/10.34172/jlms.2023.51","url":null,"abstract":"Introduction: Vitiligo, a dermatological disorder that leads to depigmented skin patches, presents a significant challenge, particularly in resistant areas such as acral regions. Fractional CO2 laser therapy holds promise as an adjunct to conventional treatment, enhancing repigmentation. This review comprehensively explores its efficacy and safety in resistant-to-treatment vitiligo. Methods: We conducted extensive database searches in PubMed, Embase, and Cochrane, focusing on English-language literature published between 2012 and 2023. We included comparative studies that met the following criteria: (1) Participants had non-segmental vitiligo, with resistant-to-treatment localization engagement; (2) The treatment involved the use of fractional CO2 laser in combination with conventional therapies; and (3) Outcomes were assessed based on the repigmentation ratio or significant difference. We excluded studies from which data from published results could not be extracted. Results: After extensive screening of 52 articles, we finally selected five studies. The results showed that fractional CO2 laser therapy, when combined with other treatments, often shows promise in vitiligo treatment in refractory cases. Although individual responses varied, overall efficacy and safety were promising, with minimal adverse effects and no severe complications. Conclusion: The fractional CO2 laser, when used in conjunction with conventional therapies, emerges as a promising option for treating refractory vitiligo. Large-scale randomized trials and a deeper understanding of the underlying mechanisms are vital for future progress in optimizing treatment protocols, case selection, and safety.","PeriodicalId":16224,"journal":{"name":"Journal of lasers in medical sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135564751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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Journal of lasers in medical sciences
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