Melatonin as a preventive treatment of tongue mucosa alterations in an animal model of orofacial radiation

Objective: To evaluate the effect of melatonin as a protective treatment for the tongue in irradiated rats. Materials and Methods: Male Sprague Dawley rats were subjected to a single session of 50 Gy radiation and treated with melatonin 30 minutes before and after the radiotherapy session. A clinical evaluation was carried out a week and a half, third- and sixth-week post-treatment; finally, a tongue biopsy was taken for a histopathological study in the third and sixth weeks after radiation. Results: Clinical evaluation shows a clear trend, that preventive administration of melatonin could facilitate the recovery of mucosal tissue after radiation. Additionally, cellular infiltrate was 40% fewer in the melatonin-treated group compared to the control, as well as the number of the congested vessel were fewer. Conclusion: These findings showed for the first time the preventive role of melatonin in the tongue mucosa reducing the changes associated with mucositis, inflammatory infiltrate, and congestive blood vessels.

Mucositis oral como efecto adverso al uso del metotrexato en el tratamiento de la artritis reumatoide: una revisión sistematizada de casos / Oral mucositis as an adverse effect of the use of methotrexate in the treatment of rheumatoid arthritis: a systematized review of cases

Introducción: el metotrexato se usa ampliamente para el tratamiento de una variedad de enfermedades neoplásicas y autoinmunes. Sin embargo, como todo fármaco, su eficacia viene marcada por cierto grado de toxicidad debido a la farmacocinética del medicamento. El metotrexato se creó como un fármaco anticancerígeno; sin embargo, se ha convertido en el tratamiento de elección contra la artritis reumatoide. Principalmente, el metotrexato causa inflamación de las mucosas epiteliales. La mayoría de los efectos secundarios del metotrexato se pueden detectar de forma temprana y son reversibles. La mucositis del tracto alimentario es el principal efecto secundario de la quimioterapia contra el cáncer. Se le conoce colectivamente como lesión de la mucosa inducida por quimioterapia, afecta todo el canal alimentario desde la boca hasta el ano, ocasionando la mucositis oral y la mucositis intestinal. Material y métodos: se buscaron casos clínicos en los que se reporte mucositis causada por metotrexato en tratamiento de artritis reumatoide. Se empleó un diagrama de flujo, PRISMA modificado para la búsqueda de artículos. Finalmente, se cotejó que los casos clínicos cumplieran con los fundamentos de la CARE guide, para manejar una correcta estructura y bajo riesgo a sesgo. Conclusiones: una correcta anamnesis y exploración clínica oral es lo más importante de la medicina oral. Es relevante indagar sobre las enfermedades que presentan los pacientes, así como la historia de medicamentos que se administren, especialmente en pacientes mayores, con mayores padecimientos de enfermedades sistémicas (AU)

Introduction: methotrexate is widely used for the treatment of a variety of neoplastic and autoimmune diseases. However, like all drugs its efficacy is marked by a certain degree of toxicity due to the pharmacokinetics of the drug. Methotrexate was developed as an anticancer drug, however, it has become the treatment of choice for rheumatoid arthritis. Methotrexate primarily causes inflammation of the epithelial mucous membranes. Most of the side effects of methotrexate can be detected early and are reversible. Mucositis of the alimentary tract is the main side effect of cancer chemotherapy. It is collectively known as chemotherapy-induced mucosal injury, affecting the entire alimentary canal from the mouth to the anus, where oral mucositis and intestinal mucositis are both common. Material and methods: we searched for clinical cases reporting mucositis caused by methotrexate in the treatment of rheumatoid arthritis, using a modified PRISMA flowchart to search for articles. Finally, the clinical cases were checked for compliance with the fundamentals of the CARE guide, in order to manage a correct approach to oral medicine. It is important to inquire about the diseases the patients present, as well as the history of medications administered, especially in older patients, with more systemic disease conditions, structure, and low risk of bias. Conclusion: a correct anamnesis and oral clinical examination is the most important aspect of oral medicine. It is important to inquire about the diseases that the patients present, as well as the history of medications that are administered, especially in older patients with major systemic diseases (AU)

Preventive and therapeutic assessment program for mucositis in patients with cancer: promising advances in stomatological care / Programa de avaliação preventiva e terapêutica de mucosite em pacientes com câncer: avanços promissores na assistência estomatológica

OBJECTIVES: We propose a preventive and therapeutic assessment program for mucositis in patients with cancer based on a comprehensive review of scientific evidence. MATERIAL AND METHODS: This methodological study, designed as a non-systematic review, entails a thorough review of the scientific evidence on the management of mucositis in patients with cancer. The PICO method was used, allowing for a structured approach to explore and synthesize relevant evidence. RESULTS: Effective mucositis management requires regular assessments, dental exams, preventive strategies, and consideration of modifiable risk factors. Pharmacological therapies may be considered for severe cases, while oral antimicrobials, prophylactic antiviral and antifungal therapy can prevent infections. Topical anesthetics o?er pain relief but require careful administration. A gradual management plan, from gentle rinses to analgesics, is recommended. CONCLUSION: The suggested program may improve the identification, prevention, and management of this complication to achieve optimal management outcomes.

OBJETIVOS: Propomos um programa de avaliação preventiva e terapêutica de mucosite em pacientes com câncer com base em uma revisão abrangente de evidências científicas. MATERIAL E MÉTODOS: Este estudo metodológico, concebido como uma revisão não sistemática, envolve uma revisão aprofundada da evidência científica sobre o manejo de mucosite em pacientes com câncer. Foi utilizado o método PICO, permitindo uma abordagem estruturada para explorar e sintetizar evidências relevantes. RESULTADOS: O manejo eficaz da mucosite requer avaliações regulares, exames odontológicos, estratégias preventivas e consideração de fatores de risco modificáveis. As terapias farmacológicas podem ser consideradas para casos graves, enquanto os antimicrobianos orais e a terapia antiviral e antifúngica profilática podem prevenir infecções. Os anestésicos tópicos oferecem alívio da dor, mas requerem administração cuidadosa. Recomenda-se uma administração gradual, desde enxágues suaves até analgésicos. CONCLUSÃO: O programa sugerido pode melhorar a identificação, prevenção e manejo desta complicação para alcançar resultados de conduta ideais.

Clinical Observation of Yinlian Gargle in the Prevention and Treatment of Acute Radiation-Induced Oropharyngeal Mucositis After Nasopharyngeal Carcinoma Radiotherapy / 中药新药与临床药理

Objective To observe the clinical efficacy of Yinlian Gargle in the treatment of acute radiation-induced oropharyngeal mucositis after nasopharyngeal carcinoma radiotherapy.Methods Thirty-two patients with nasopharyngeal carcinoma,who had received first radiation,were randomly split into two groups:the trial group(19 cases)and the control group(13 cases).After all groups were treated with radiotherapy and chemotherapy,the control group was given rinse treatment with saline whereas the trial group was given Yinlian Gargle.The incidence of severe acute radiation-induced oropharyngeal mucositis,the duration and intensity of oropharyngeal discomfort and pain(NRS score),quality of life(QOL-NPC score),duration and intensity of radiation-induced side effects(SE-QOL-NPC score)and symptoms of dry mouth(SE1 score)were monitored before and after intervention in two groups.Results The incidence of grade Ⅲ or above radiation-induced oropharyngeal mucositis until the sixth week of radiotherapy in the trial group was considerably lower than that in the control group(P＜0.001),while the incidence of grade I or above radiation-induced oropharyngeal mucositis at 1 month after radiotherapy in the trial group was obviously lower than that in the control group(P＜0.001).The NRS score of pharyngeal discomfort of the trial group was lower than that of the control group starting from the second week of radiotherapy(P＜0.05).The NRS score of oral and oropharyngeal pain was lower than that of the control group starting from the fourth week of radiotherapy(P＜0.05).The SE1 score of the trial group was higher than that of the control group starting from the fifth week of radiotherapy(P＜0.05).After one month of the completion of the radiotherapy,the NRS score of pharyngeal discomfort and the NRS score of oral and oropharyngeal pain in the trial group were lower than those of the control group(P＜0.001).The QOL-NPC score,SE-QOL-NPC score,and SE1 score were all higher than those in the control group(P = 0.05 or P＜0.05).Conclusion Patients with nasopharyngeal cancer can greatly reduce their risk of developing severe acute radiation-induced oropharyngeal mucositis,effectively delay and relieve related symptoms,and enhance quality of life by consistently using Yinlian Gargle during radiotherapy.Additionally,a month after the completion of radiotherapy,it still has positive therapeutic effects on acute radiation-induced oropharyngeal mucositis.

Application and clinical economic evaluation of three intervention methods in high-dose methotrexate chemotherapy-induced oral mucositis in acute lymphoblastic leukemia / 中国感染控制杂志

Objective To explore the clinical efficacy and cost-effectiveness of honey,low-temperature oxygen ato-mization and conventional mouthwash on chemotherapy-induced oral mucositis(CIOM)in patients with acute lym-phoblastic leukemia(ALL).Methods 129 ALL patients who were hospitalized in the hematology department of a tertiary first-class hospital in Yinchuan City of Ningxia from February to May 2023 and met the inclusion and exclu-sion criteria were selected,they were randomly divided into honey group,low-temperature oxygen atomization group,and conventional mouthwash group,with 43 cases in each group.During chemotherapy period,the honey group applied honey to oral mucosa surface,the low-temperature oxygen atomization group inhaled granulocyte stimulating factors through low-temperature oxygen atomization,the conventional mouthwash group gargled with prescribed mouthwash.Results There were 7(16.28％),9(20.93％),and 20(46.51％)patients with CIOM in honey group,low-temperature oxygen atomization group,and conventional mouthwash group,respectively.The in-cidence and severity of CIOM among three groups of patients were statistically different(H=11.598,P=0.003).Honey and low-temperature oxygen atomization were superior to conventional mouthwash in the prevention and treatment efficacy on CIOM in ALL patients(both P＜0.05),but the efficacy was no statistically different between honey and low-temperature oxygen atomization(P＞0.05).The cost of honey group was lower than low-tempera-ture oxygen atomization group and conventional mouthwash group(both P＜0.05),although the low-temperature oxygen atomization group has certain therapeutic effect,its cost was much higher than that of the honey group and the conventional mouthwash group(both P＜0.05).Conclusion Honey has a better prevention and treatment effect on CIOM in ALL patients,and can also reduce the hospitalization cost of patients.

Progress in the pathogenesis and prevention of radiation induced oral mucositis / 中华放射肿瘤学杂志

Radiotherapy is the main treatment for patients with head and neck cancer. Radiation-induced oral mucositis (RIOM) is one of the common complications of patients with head and neck cancer during radiotherapy. It is a mucus injury reaction related to dysphagia and oral pain, which will affect the quality of life and prognosis of patients when it becomes severe. Therefore, prevention and treatment of RIOM are of significance for patients. In this article, the pathogenesis, clinical manifestations, treatment and prevention methods of RIOM were summarized, aiming to provide guidance for the treatment of oral mucositis caused by radiotherapy in patients with head and neck cancer.

Application of rhG-CSF in the treatment of chemotherapy-induced oral mucositis in children / 中国现代医生

@#Objective To explore the application effect of recombinant human granulocyte colony stimulating factor(rhG-CSF)in the treatment of chemotherapy-induced oral mucositis in children.Methods Totally 60 children with chemotherapy-induced oral mucositis who underwent chemotherapy in the tumor surgery of our hospital from January 2020 to June 2022 were randomly divided into two groups,30 cases each.The control group was given physiological saline oral care,and the experimental group was given rhG-CSF oral care.Compare the intervention effect,oral mucositis grading,quality of life[short form of health survey(SF-36)]and nursing satisfaction of parents of the two groups.Results The total effective rate of the experimental group was higher than that of the control group(P<0.05).After 5 days of intervention,the score of oral mucositis in the experimental group was better than that in the control group(P<0.05).After 5 days of intervention,the SF-36 score of children in the two groups was higher than that before intervention,and that in the experimental group was higher than that in the control group(P<0.05).The parents'satisfaction in the experimental group was higher than that in the control group(P<0.05).Conclusion rhG-CSF oral care can effectively improve the intervention effect of chemotherapy-induced oral mucositis in children,reduce the grade of oral mucositis,improve the quality of life of children,and improve the nursing satisfaction of parents of children.

Evidence-based practice to reduce the incidence of severe oral mucositis in patients undergoing hematopoietic stem cell transplantation / 中国现代医生

@#Objective To explore the effect of evidence-based practice on reducing the incidence of severe oral mucositis in patients undergoing hematopoietic stem cell transplantation.Methods A multidisciplinary team was set up to carry out quality control circle activities according to the Australia Joanna Briggs Institute evidence-based health care model.Evidence-based evidence was combined with continuous quality improvement to evaluate the obstacle factors and promoting factors in the implementation process,and an evidence-based practice plan was constructed.The practice reform was carried out from three aspects:Formulating the grading nursing process of oral mucositis,improving the evaluation tools and strengthening the health education of patients.The incidence of severe oral mucositis,average hospitalization days and oral health-related quality of life of patients with hematopoietic stem cell transplantation before and after the practice were compared.Results After evidence-based nursing practice,the incidence of severe oral mucositis decreased from 67%to 34%.The average length of hospital stay decreased from 25.93 days to 24.70 days,and the average score of oral health-related quality of life decreased from 28.0 points to 17.5 points.The difference was statistically significant(P<0.05).Conclusion By introducing evidence,quality control circle activities can effectively reduce the incidence of severe oral mucositis and average hospitalization days in patients with hematopoietic stem cell transplantation,improve the oral health-related quality of life of patients.

Plant extracts used in Brazil for treatment of oral ulcers and mucositis: systematic review / Extratos vegetais utilizados no Brasil para tratamento de úlceras orais e mucosite: revisão sistemática

Objective: To identify and analyze plant extracts used in Brazil for the treatment of oral ulcers and oral mucositis. Material and Methods: A systematic review was registered in PROSPERO (CRD 42018102184) and performed following the PRISMA protocol. The databases searched were PubMed, Web of Science, Scopus, Lilacs, Scielo, the Brazilian Dentistry Library. Manual searches were also performed. Results: Initially, 440 studies were found, of which 392 were excluded after reading the titles and abstracts. A total of 29 articles were read in full and 11 studies were excluded, resulting in 18 articles included in the systematic review. Nine plant species were identified in five clinical trials and 13 in vivo studies, with Chamomila recutita being the most used (33.3% of the studies). Chamomila recutita showed more promising results for analgesic, anti-inflammatory, and healing properties. Calotropis procera latex significantly decreased (p<0.05) inflammatory mediators, such as TNF-α and IL-1ß in oral mucositis induced in rats. Eupatorium laevigatum showed anti-inflammatory activity and analgesic action on oral ulcers. Carapa guianensis Aubl. reduced the severity and painful symptoms of oral mucositis and exhibited better results compared to the use of low power laser. Curcuma longa L accelerated re-epithelialization and resolution of inflammatory processes. Spondias mombin reduced oxidative stress and inflammation caused by oral mucositis and helped on healing it. Extracts of Aloe barbadensis Miller or Aloe vera showed anti-inflammatory action but did not help in the healing process of oral ulcers. Copaifera reticulata Ducke oil did not induce improvement in the healing process, nor did it show an anti-inflammatory effect. Malva sylvestrisdid not show an anti-inflammatory action on oral lesions in humans or rats. The assessment of methodological heterogeneity showed the impossibility of performing a meta-analysis. Risk of bias varied from low to high. Conclusion: The plant species most used and with the best results for the treatment of oral ulcerations and oral mucositis was Chamomilla recutita. Spondias mombin L., Curcuma longa L., Carapa guianensis Aubl and Calotropis procera showed good results in the treatment of oral mucositis, while Eupatorium laevigatum was efficient in the treatment of ulcers of traumatic origin. Malva sylvestris, Copaifera reticulata Ducke, and Aloe barbadensis Miller did not exhibit significant results (AU)

Objetivo: Identificar e analisar extratos vegetais utilizados no Brasil para o tratamento de úlceras orais e mucosite oral. Material e Métodos: Uma revisão sistemática foi registrada no PROSPERO (CRD 42018102184) e realizada seguindo o protocolo PRISMA. As bases de dados pesquisadas foram PubMed, Web of Science, Scopus, Lilacs, Scielo, Biblioteca Brasileira de Odontologia. Buscas manuais também foram realizadas. Resultados: Inicialmente, foram encontrados 440 estudos, dos quais 392 foram excluídos após a leitura dos títulos e resumos. Um total de 29 artigos oram lidos na íntegra e 11 estudos foram excluídos, resultando em 18 artigos incluídos na revisão sistemática. Nove espécies vegetais foram identificadas em cinco ensaios clínicos e 13 estudos in vivo, sendo a Chamomila recutita a mais utilizada (33,3% dos estudos). A Chamomila recutita apresentou resultados mais promissores quanto às propriedades analgésicas, anti-inflamatórias e cicatrizantes. O látex de Calotropis procera diminuiu significativamente (p<0,05) os mediadores inflamatórios, como TNF-α e IL-1ß, na mucosite oral induzida em ratos. Eupatorium laevigatumapresentou atividade anti-inflamatória e ação analgésica em úlceras orais. Carapa guianensis Aubl. reduziu a gravidade e os sintomas dolorosos da mucosite oral e apresentou melhores resultados em comparação com o uso do laser de baixa potência. Curcuma longa L. acelerou a reepitelização e resolução de processos inflamatórios. Spondias mombinreduziu o estresse oxidativo e a inflamação causadas pela mucosite oral e ajudou na sua cicatrização. Extratos de Aloe barbadensis Miller ou Aloe vera apresentaram ação anti-inflamatória, mas não auxiliaram no processo de cicatrização de úlceras orais. O óleo de Copaifera reticulata Ducke não induziu melhora no processo cicatricial, nem apresentou efeito anti-inflamatório. Malva sylvestris não apresentou ação anti-inflamatória em lesões orais em humanos ou ratos. A avaliação da heterogeneidade metodológica mostrou a impossibilidade de realizar uma meta-análise. O risco de viés variou de baixo a alto. Conclusão: A espécie vegetal mais utilizada e com melhores resultados para o tratamento de ulcerações orais e mucosite oral foi a Chamomilla recutita. Spondias mombin L., Curcuma longa L., Carapa guianensis Aubl e Calotropis procera apresentaram bons resultados no tratamento da mucosite oral, enquanto Eupatorium laevigatum foi eficiente no tratamento de úlceras de origem traumática. Malva sylvestris, Copaifera reticulata Duckee Aloe barbadensis Miller não apresentaram resultados significativos(AU)

TNF-α promoter hypomethylation is frequent in oncopediatric patients who recovered from mucositis

Abstract The aim of this study was to investigate the DNA methylation profile in genes encoding catalase (CAT) and superoxide dismutase (SOD3) enzymes, which are involved in oxidative stress mechanisms, and in genes encoding pro-inflammatory cytokines interleukin-6 (IL6) and tumor necrosis factor-alpha (TNF-α) in the oral mucosa of oncopediatric patients treated with methotrexate (MTX®). This was a cross-sectional observational study and the population comprised healthy dental patients (n = 21) and those with hematological malignancies (n = 64) aged between 5 and 19 years. Oral conditions were evaluated using the Oral Assessment Guide and participants were divided into 4 groups: 1- healthy individuals; 2- oncopediatric patients without mucositis; 3- oncopediatric patients with mucositis; 4- oncopediatric patients who had recovered from mucositis. Methylation of DNA from oral mucosal cells was evaluated using the Methylation-Specific PCR technique (MSP). For CAT, the partially methylated profile was the most frequent and for SOD3 and IL6, the hypermethylated profile was the most frequent, with no differences between groups. For TNF-α, the hypomethylated profile was more frequent in the group of patients who had recovered from mucositis. It was concluded that the methylation profiles of CAT, SOD3, and IL6 are common profiles for oral cells of children and adolescents and have no association with oral mucositis or exposure to chemotherapy with MTX®. Hypomethylation of TNF-α is associated with oral mucosal recovery in oncopediatric patients who developed oral mucositis during chemotherapy.

Patient-, implant- and prosthetic-related factors on peri-implant mucositis and bone loss

Abstract Peri-implant diseases, including peri-implant mucositis (PIM) and peri-implantitis, are a chronic inflammatory disorder triggered by bacterial biofilm in susceptible hosts. Potential risk factors for peri-implant diseases include smoking, dental plaque accumulation, poor oral hygiene, genetics, and absence of peri-implant keratinized mucosa. This cohort study aimed to evaluate the influence of patient-, implant-, and prosthetic-related factors on PIM and peri-implant bone loss (PBL) around dental implants after 1 year of loading. A total of 54 subjects (22 males and 32 females) were included in the study. Peri-implant clinical parameters were assessed and standardized periapical radiographs of each dental implant were obtained 15 days after the definitive prosthesis installation (baseline) and at 3, 6, and 12 months of follow-up. A total of 173 implants were evaluated. PIM affected 44.8% of the implants and no significant association was found between the investigated parameters and PIM incidence, except for type of implant connection. A significantly higher incidence of PIM (80.0%) was observed for implants with internal hexagon connection type after 1 year of follow-up (p = 0.015). Moreover, a mean PBL of 0.35 ± 1.89 mm was observed and no dental implant was affected by peri-implantitis after 1 year of function. No specific influence of patient, implant, or prosthetic factors on PBL was observed. No association was found between the occurrence of PIM/PBL and the patient-, implant-, and prosthetic-related factors investigated in this cohort study, except for the type of dental-implant connection.

O efeito das abordagens herbais na mucosite oral em pacientes adultos com câncer - uma revisão sistemática de estudos de enfermagem / The effect of herbal approaches on oral mucositis in adult cancer patients - a systematic review of nursing studies / El efecto de los enfoques herbales sobre la mucositis oral en pacientes adultos con cáncer - una revisión sistemática de estudios de enfermería

Objetivo: examinar os efeitos das abordagens herbais na mucosite oral em pacientes adultos com câncer. Método: revisão sistemática seguindo as diretrizes da Cochrane, com uma busca por estudos experimentais e randomizados entre 2013 e 2023. Foram incluídos estudos em inglês sobre intervenções herbais em pacientes com mais de 18 anos. Resultados: foram avaliados oito estudos que usaram intervenções herbais para tratar a mucosite oral. As ervas testadas incluíram aloe vera, raiz de althaea, cúrcuma, camomila, vinagre de uva, água de rosas, suco de frutas/vegetais e extrato de amoreira. As intervenções variaram em frequência e duração, mas mostraram resultados positivos, reduzindo a intensidade da mucosite oral, dor e outros sintomas. Algumas intervenções foram tão eficazes quanto tratamentos convencionais como a clorexidina. Conclusão: a pesquisa sugere que abordagens herbais podem ser benéficas no manejo da mucosite oral em pacientes com câncer, mas mais estudos são necessários para confirmar esses resultados

Objective: to examine the effects of herbal approaches on oral mucositis in adult cancer patients. Method: systematic review following Cochrane guidelines, with a search for experimental and randomized studies from 2013 to 2023. English studies on herbal interventions in patients over 18 years were included. Results: eight studies that used herbal interventions to treat oral mucositis were evaluated. The herbs tested included aloe vera, althaea root, turmeric, chamomile, grape vinegar, rose water, fruit/vegetable juice, and mulberry extract. The interventions varied in frequency and duration but showed positive results, reducing oral mucositis inten-sity, pain, and other symptoms. Some interventions were as effective as conventional treatments like chlorhexidine. Conclusion: the research suggests that herbal approaches can be beneficial in managing oral mucositis in cancer patients, but more studies are needed to confirm these results

Objetivo: examinar los efectos de los enfoques herbales en la mucositis oral en pacientes adultos con cáncer. Método: revisión sistemática siguiendo las directrices de Cochrane, con una búsqueda de estudios experimentales y aleatorizados entre 2013 y 2023. Se incluyeron estudios en inglés sobre intervenciones herbales en pacientes mayores de 18 años. Resultados: se evaluaron ocho estudios que utilizaron intervenciones herbales para tratar la mucositis oral. Las hierbas probadas incluyeron aloe vera, raíz de althaea, cúrcuma, manzanilla, vinagre de uva, agua de rosas, jugo de frutas/verduras y extracto de moras. Las intervenciones variaron en frecuencia y duración, pero mostraron resultados positivos, reduciendo la intensidad de la mucositis oral, el dolor y otros síntomas. Algunas intervenciones fueron tan eficaces como tratamientos convencionales como la clorhexidina. Conclusión: la investigación sugiere que los enfoques herbales pueden ser beneficiosos para el manejo de la mucositis oral en pacientes con cáncer, pero se nece-sitan más estudios para confirmar estos resultados

Uso da laserterapia de baixa intensidade na prevenção e tratamento da mucosite oral induzida por tratamentos antineoplásicos / Use of low-intensity lasertherapy in the prevention and treatment of oral mucositis induced by antineoplastic treatments

Sabe-se que para o combate de células cancerígenas, é imprescindível a submissão de pacientes oncológicos a tratamentos antineoplásicos, sessões de quimioterapia e radioterapia são as terapêuticas mais utilizadas em pacientes neoplásicos, sendo capazes de originar inúmeras reações adversas, como a mucosite oral, que é considerada um dos principais efeitos adversos do tratamento com quimioterapia e radioterapia. A laserterapia vem sendo considerada um grande aliado na prevenção e tratamento da mucosite, visto que de forma preventiva retarda o aparecimento desta condição, e de forma terapêutica proporciona alívio da dor, além de reduzir a gravidade da mucosite oral. Dessa forma, a presente revisão de literatura teve por objetivo denotar os benefícios da laserterapia de baixa intensidade na prevenção e tratamento da mucosite oral induzida por tratamentos antineoplásicos. Para a confecção deste trabalho, foram pesquisados artigos científicos publicados entre 2012 e 2022, nas bases de dados PubMed, Portal BVS, Scielo e google acadêmico, nos idiomas inglês e português. Como resultado foram encontrados 59 trabalhos, onde após leitura dos títulos e resumos, e do tipo de estudo, foram excluídos 32 artigos. Sendo 27 selecionados para leitura integral do texto, onde dentre eles somente 19 se encaixaram nos critérios de inclusão e foram utilizados neste trabalho. Portanto, conclui-se que a literatura mostra que embora haja bastante discussão, a maior parte dos estudos mostram evidências que a laserterapia de baixa intensidade possui muitos benefícios na prevenção e no tratamento da mucosite oral devido sua capacidade moduladora nos eventos metabólicos por meio de processos fotofísicos e bioquímicos(AU)

It is known that in order to fight cancer cells, it is essential to submit cancer patients to antineoplastic treatments, chemotherapy and radiotherapy sessions are the most used therapies in cancer patients, being capable of causing numerous adverse reactions, such as oral mucositis, which is considered one of the main adverse effects of chemotherapy and radiotherapy treatment. Laser therapy has been considered a great ally in the prevention and treatment of mucositis, since in a preventive way it delays the onset of this condition, and in a therapeutic way it provides pain relief, in addition to reducing the severity of oral mucositis. Thus, the present literature review aims to denote the benefits of low-level laser therapy in the prevention and treatment of oral mucositis induced by antineoplastic treatments. For the preparation of this work, scientific articles published between 2012 and 2022 were searched in PubMed, Portal BVS, Scielo and academic google databases, in English and Portuguese. As a result, 59 studies were found, where after reading the titles and abstracts, and the type of study, 32 articles were excluded. 27 were selected for full text reading, among which only 19 met the inclusion criteria and were used in this work. Therefore, it is concluded that the literature shows that, although there is a lot of discussion, most studies show evidence that low-level laser therapy has many benefits in the prevention and treatment of oral mucositis due to its modulating capacity in metabolic events through processes photophysical and biochemical(AU)

Dental consensus on HSCT - Part II: dental Care during HSCT

ABSTRACT During the state of immune vulnerability in hematopoietic stem cell transplantation (HSCT), the patient has an increased risk of developing a vast number of complications, including severe problems in the oral cavity. These situations require professional oral care to act in the diagnosis and treatment of these conditions, as well as to develop prevention protocols to minimize patient's complications. Oral mucositis, opportunistic infections, bleeding, specific microbiota, taste, and salivary alterations are complications that can occur during HSCT and interfere with various aspects, such as pain control, oral intake, nutrition, bacteremia and sepsis, days of hospitalization and morbidity. Several guidelines have been published to address the role of professional oral care during the HSCT, we describe a consensus regarding these recommendations.

Ação da própolis no manejo de lesões não infecciosas em cavidade oral: uma revisão integrativa / The effects of Propolis in the management of non-infectious lesions in the oral cavity: an integrative review

ntrodução: a própolis é um produto natural que apresenta inúmeras propriedades terapêuticas, dentre elas a ação cicatrizante e anti-inflamatória. Diversos estudos têm sugerido o seu emprego no manejo da mucosite oral (MO) e de lesões ulceradas em mucosa bucal. A MO é uma inflamação da mucosa oral, resultante do tratamento quimio e/ou radioterápico. Já as lesões ulceradas caracterizam-se como um distúrbio ulcerativo inflamatório doloroso. Objetivo: discutir a ação da própolis sobre a prevenção e cicatrização de lesões de origem não infecciosa que acometem a cavidade oral. Metodologia: trata-se de uma revisão integrativa da literatura em que foram utilizadas as bases de dados LILACS, PubMed, SciELO e Cochrane, por meio do cruzamento dos descritores em português: "própolis", "úlceras orais" e "mucosite oral"; e em inglês: "propolis", "oral ulcer" e "mucositis". Os seguintes critérios de inclusão foram estabelecidos: ensaios clínicos e revisões sistemáticas, na íntegra, escritos em inglês ou português, entre 2005 e 2018, que utilizaram a própolis de forma tópica ou sistêmica. Resultados: foram incluídos um total de 10 estudos, onde 2 abordaram o uso da própolis em úlceras orais e 8 tiveram como foco a aplicação deste agente no manejo da MO. Quanto ao desfecho, a aplicação da própolis na mucosite se mostrou eficaz em 7 dos 8 estudos. Já se tratando de úlceras orais, a administração deste agente foi efetiva nos 2 estudos. Conclusão: os estudos analisados demostraram que a própolis apresenta propriedades capazes de favorecer a prevenção e cicatrização de lesões de MO e úlceras orais.

Introduction: propolis is a natural product that has numerous therapeutic properties, including healing and anti-inflammatory action. Several studies have suggested its use in the management of oral mucositis (OM) and ulcerated lesions in the oral mucosa. OM is an inflammation of the oral mucosa resulting from chemotherapy and/or radiotherapy. Whereas ulcerated lesions are characterized as a painful inflammatory ulcerative disorder. Objective: to discuss the action of propolis on the prevention and healing of non-infectious lesions that affect the oral cavity. Methodology: this is an integrative literature review in which LILACS, PubMed, SciELO and Cochrane databases were used, by crossing descriptors in Portuguese: "própolis", "úlceras orais" and "mucosite oral"; and in English: "propolis", "oral ulcer" and "mucositis". The following inclusion criteria were established: clinical trials and systematic reviews, in full, written in English or Portuguese, between 2005 and 2018, which used propolis topically or systemically. Results: a total of 10 studies were included, where 2 addressed the use of propolis in oral ulcers and 8 focused on the application of this agent in the management of OM. As for the outcome, the application of propolis in mucositis proved to be effective in 7 of the 8 studies. As for oral ulcers, the administration of this agent was effective in both studies. Conclusion: the analysed studies demonstrated that propolis has properties capable of help the prevention and healing of OM lesions and oral ulcers.

Update on the treatment of chemotherapy and radiotherapy-induced buccal mucositis: a systematic review / Actualización en el tratamiento de la mucositis oral inducida por quimioterapia y radioterapia: una revisión sistemática

ABSTRACT Oral mucositis (OM) is a frequent complication in cáncer patients who are undergoing chemotherapy or radiotherapy. It manifests as an inflammation of the oral mucosa, sometimes provoking severe consequences such as eating limitations, difficulty in speaking, and possibly superinfection. Aim: The aim of this review was to update the evidence published during the last five years on the treatment of oral mucositis induced by radiotherapy and/or chemotherapy in patients with cancer. Materials and Method: A search was conducted in Pubmed, Scielo and Scopus, using the search terms mucositis, stomatitis, therapy, treatment, oral cancer, oral squamous cell carcinoma, head and neck cancer and head and neck carcinoma, with Mesh terms and free terms, from 2017 to January 2023. The systematic review was conducted in accordance with the PRISMA guidelines. Results: A total 287 articles were retrieved, of which 86 were selected by title and abstract, and 18 were included after full-text analysis. The most frequently assessed variables were OM severity, pain intensity and healing time. Treatment types were diverse, and included drugs, mouthwashes, medicines based on plant extracts, cryotherapy and low-intensity laser therapies. Conclusión: Dentoxol mouthwashes, Plantago major extract, thyme honey extract, zinc oxide paste, vitamin B complex combined with GeneTime, and the consumption of L-glutamine are effective in diminishing the severity of OM. Pain intensity was lower with doxepin mouthwashes and diphenhydramine-lidocaine-antacid mouthwashes.

RESUMEN La mucositis oral (MO) es una complicación frecuente en pacientes oncológicos sometidos a quimioterapia o radioterapia. Se manifiesta como una inflamación de la mucosa oral, provocando en ocasiones graves consecuencias como limitaciones en la alimentación, dificultad para hablar y posiblemente sobreinfección. Objetivo: El objetivo de esta revisión fue actualizar la evidencia publicada durante los últimos cinco años sobre el tratamiento de la mucositis oral inducida por radioterapia y/o quimioterapia, en pacientes con cáncer. Materiales y Método: Se realizó una búsqueda en Pubmed, Scielo y Scopus, con las palabras de búsqueda mucositis, stomatitis, therapy, treatment, oral cancer, oral squamous cell carcinoma, head and neck cancer and head and neck carcinoma, utilizando términos Mesh y libres, de 2017 a enero de 2023. La revisión sistemática se realizó de acuerdo con los lineamientos de declaración del PRISMA. Resultados: Se obtuvieron un total de 287 artículos, de los cuales 86 fueron seleccionados por título y resumen y finalmente 18 fueron incluidos por texto completo. Las variables evaluadas con mayor frecuencia fueron la severidad de la MO, la intensidad del dolor y el tiempo de cicatrización. Los tipos de tratamientos fueron diversos, desde medicamentos, colutorios bucales, medicamentos a base de extractos de plantas, crioterapia y terapias con láser de baja intensidad. Conclusiones: Los enjuagues bucales de Dentoxol, extracto de Plantago major, extracto de miel de tomillo, pasta de óxido de zinc, mezcla de compuestos de vitamina B combinados con GeneTime y el consumo de L-glutamina son efectivos para disminuir la severidad de la MO. La intensidad del dolor fue menor con los colutorios de doxepina y también con los colutorios de difenhidramina-lidocaína-antiácido. Palabras clave: mucositis bucal;cáncer;quimioterapia;radioterapia;tratamiento

Prevalencia del pseudoquiste antral y mucositis apical en los senos maxilares como entidades frecuentes encontradas en radiografías panorámicas en pacientes de un centro radiológico de Huacho, Lima-Perú, 2019 / Prevalence of antral pseudocyst and apical mucositis in the maxillary sinus as common entities found in panoramic x-rays among patients at a radiological center in Huacho, Lima, Peru, 2019

RESUMEN Antecedentes: Los senos maxilares están directamente relacionados con el proceso dentoalveolar, por lo que el conocimiento de las patologías que pueden afectar y comprometer cualquiera de ambas estructuras facilitará un correcto diagnóstico y tratamiento. Objetivo: Determinar la prevalencia de pseudoquiste antral y mucositis como entidades frecuentes encontradas en radiografías panorámicas en pacientes de un centro radiológico de Huacho, Lima-Perú, en 2019. Material y métodos: Estudio transversal, observacional, descriptivo y retrospectivo. De un total de 1646 radiografías panorámicas virtuales recolectadas en el centro radiológico de Huacho, se asignó como población muestral 1224 radiografías, luego de tener en cuenta los criterios de inclusión y exclusión. Las variables fueron pseudoquiste antral, engrosamiento de la mucosa, periodontitis apical, mucositis, edad, sexo y mes de toma radiográfica. Se realizó análisis descriptivo y bivariado. Resultados: La prevalencia de pseudoquiste antral de origen respiratorio fue de 5,71 %; de mucositis, 13,07 %; y de ambas entidades correlacionadas, 0,90 %. Se encontró asociación significativa entre la presencia de pseudoquiste antral de origen respiratorio y el sexo masculino (p = 0,007). Conclusiones: La presencia de lesiones apicales que condicionan tanto el engrosamiento de la mucosa antral como la presencia de pseudoquiste antral odontogénico, correlacionadas, resultó poco prevalente (y no rara).

ABSTRACT Maxillary sinuses are directly related to the dentoalveolar process, so knowledge of the pathologies that may affect and compromise either of the two structures can facilitate a correct diagnosis and treatment. Objective: To determine antral pseudocyst and apical mucositis prevalence as frequent entities found in panoramic x-rays among patients at a radiological center in Huacho, Lima, Peru, 2019. Material and Methods: Cross-sectional, observational, descriptive and retrospective study. From a total of 1,646 virtual panoramic x-rays collected at a radiological center in Huacho, 1,224 x-rays were used as sample population after taking into account the inclusion and exclusion criteria. The variables were antral pseudocyst, thickening of the mucosa, apical periodontitis, apical mucositis, age, gender, and month in which x-ray was taken. Descriptive and bivariate analysis was performed. Results: Antral pseudocyst of respiratory origin prevalence was 5.71%, mucositis prevalence was 13.07%, and prevalence of both correlated entities was 0.90%. A significant association was found between the presence of antral pseudocyst of respiratory origin and male gender (p=0,007). Conclusion: The occurrence of apical lesions leading to both thickening of the antral mucosa and the presence of odontogenic antral pseudocysts, while not rare, was found to be of low prevalence.

Influência da via hippo no reparo da mucosite oral quimicamente induzida em modelo murino submetida a tratamento com laser, geleia real ou própolis / Influence of the hippo pathway on the repair of chemically induced oral mucositis in a murine model subjected to treatment with laser, royal jelly or propolis

A via hippo é uma via de transdução de sinal altamente conservada que está implicada no desenvolvimento, homeostase e regeneração celular/tecidual. A YAP tem papel fundamental na via hippo uma vez que junto com a TAZ ativam fatores de transcrição que levam ao crescimento, diferenciação e migração celular. O mecanismo de fosforilação da YAP/TAZ pela LATS1/LATS2 cria um sítio de ligação para manter a YAP no citoplasma (fosforilada) impedindo suas funções a nível nuclear. Diante das importantes funções desta via no reparo e crescimento tecidual, esta pesquisa avaliou se a via hippo exerceu influência na resposta ao tratamento da MO através da expressão das proteínas YAP e LATS2 em mucosite oral (MO) quimicamente induzida pelo 5- fluoracil (5-FU), em modelo murino, tratada com própolis (P), geleia real (GR) ou laser (L) comparadas ao grupo controle (C), sem tratamento. Foram utilizadas amostras de ratos machos wistar divididos nos seguintes grupos: C, P, GR e L (intraoral 6 J/cm2 ) separados em três tempos experimentais: dias 08, 10 e 14. O perfil de imunomarcação foi feito por escores padronizados entre 0 a 3 levando em consideração a marcação nuclear e/ou citoplasmática. Na análise de imunomarcação da YAP, no dia 08, o grupo controle obteve os escore 0 e 1 na maioria das amostras, já nos dias 10 e 14 a maior parte das amostras obteve os escore 2 e 3. Nos grupos experimentais (L, GR e P), o escore 2 prevaleceu em todos os tempos experimentais. Para LATS2 houve prevalência do escore 2 tanto no grupo controle quanto nos grupos teste em todos os tempos experimentais. Em relação a análise estatística da imunoexpressão da proteína YAP, verificou-se diferença estatítica significativa (p= 0,020), apenas no dia 08 entre o grupo controle comparado aos grupos experimentais (L, GR e P). Já para LATS2 nenhuma diferença estatística foi encontrada. Na avaliação estatística dos diferentes tempos experimentais dentro um mesmo grupo, só foi encontrada diferença estatística significativa no grupo laser e apenas para LATS2 (p=0,025). Adicionalmente foi realizada a correlação de spearman, entre YAP e LATS2 para todos os grupos, porém não houve associação estatística significativa. A maior imunoexpressão de YAP e LATS2 (escores 2 e 3) observada nos grupos experimentais, indica que a via hippo é ativada e parece influenciar o processo de reparo nas mucosites orais quimioinduzidas e tratadas pelos diferentes métodos (AU).

The hippo pathway is a highly conserved signal transduction pathway that is implicated in cell/tissue development, homeostasis and regeneration. YAP plays a key role in the hippo pathway since, together with TAZ, they activate transcription factors that lead to cell growth, differentiation and migration. The YAP/TAZ phosphorylation mechanism by LATS1/LATS2 creates a binding site to keep YAP in the cytoplasm (phosphorylated) preventing its functions at the nuclear level. Given the important functions of this pathway in tissue repair and growth, this research evaluated whether the hippo pathway exerted influence on the response to OM treatment through the expression of YAP and LATS2 proteins in oral mucositis (OM) chemically induced by 5-fluororacil (5- FU), in a murine model, treated with propolis (P), royal jelly (GR) or laser (L) compared to the control group (C), without treatment. Samples of male Wistar rats divided into the following groups were used: C, P, GR and L (intraoral 6 J/cm2) separated into three experimental times: days 08, 10 and 14. The immunostaining profile was performed by standardized scores between 0 to 3 taking into account nuclear and/or cytoplasmic labeling. In the YAP immunostaining analysis, on day 08, the control group obtained scores 0 and 1 in most samples, while on days 10 and 14 most samples obtained scores 2 and 3. In the experimental groups (L, GR and P), score 2 prevailed at all experimental times. For LATS2 there was a prevalence of score 2 both in the control group and in the test groups at all experimental times, showing a very heterogeneous expression. Regarding the statistical analysis of YAP protein immunoexpression, there was a statistically significant difference (p= 0.020), only on day 08 between the control group compared to the experimental groups (L, GR and P). As for LATS2, no statistical difference was found. In the statistical evaluation of the different experimental times within the same group, a statistically significant difference was only found in the laser group and only for LATS2 (p=0.025). Additionally, the Spearman correlation was performed between YAP and LATS2 for all groups, but there was no statistically significant association. The greater immunoexpression of YAP and LATS2 (scores 2 and 3) observed in the experimental groups indicates that the hippo pathway is activated and seems to influence the repair process in chemoinduced oral mucositis treated by different methods (AU).

Distribution and Drug Resistance of Pathogens in Oral Mucositis Associated with Chemotherapy in Patients with Malignant Hematopathy / 中国实验血液学杂志

OBJECTIVE@#To analyze the distribution and drug resistance of pathogens in oral mucositis associated with chemotherapy in hospitalized patients with malignant hematopathy, so as to provide scientific evidences for rational selection of antibiotics and infection prevention and control.@*METHODS@#From July 2020 to June 2022, 167 patients with malignant hematopathy were treated with chemical drugs in the Department of Hematology, Hainan Hospital, and secretions from oral mucosal infected wounds were collected. VITEK2 COMPECT automatic microbial identification system (BioMerieux, France) and bacterial susceptibility card (BioMerieux) were used for bacterial identification and drug susceptibility tests.@*RESULTS@#A total of 352 strains of pathogens were isolated from 167 patients, among which 220 strains of Gram-positive bacteria, 118 strains of Gram-negative bacteria and 14 strains of fungi, accounted for 62.50%, 33.52% and 3.98%, respectively. The Gram-positive bacteria was mainly Staphylococcus and Streptococcus, while Gram-negative bacteria was mainly Klebsiella and Proteus. The resistance of main Gram-positive bacteria to vancomycin, ciprofloxacin and gentamicin was low, and the resistance to penicillin, cefuroxime, ampicillin, cefotaxime, erythromycin and levofloxacin was high. The main Gram-negative bacteria had low resistance to gentamicin, imipenem and penicillin, but high resistance to levofloxacin, cefotaxime, cefuroxime, ampicillin and vancomycin. The clinical data of oral mucositis patients with oral ulcer (severe) and without oral ulcer (mild) were compared, and it was found that there were statistically significant differences in poor oral hygiene, diabetes, sleep duration less than 8 hours per night between two groups (P<0.05).@*CONCLUSION@#Gram-positive bacteria is the main pathogen of oral mucositis in patients with malignant hematopathy after chemotherapy. It is sensitive to glycopeptide antibiotics and aminoglycosides antibiotics. Poor oral hygiene, diabetes and sleep duration less than 8 hours per night are risk factors for oral mucositis with oral ulcer (severe).

Study of application of 3D printed oral stents in radiotherapy for head and neck malignancies / 中华放射肿瘤学杂志

Objective:To analyze the dosimetric differences between 3D printed oral stents and corked oral stents in the target area and perioral organ at risk (OAR) in radiotherapy for head and neck cancer, and the effectiveness in reducing acute adverse reactions associated with radiotherapy.Methods:A total of 58 patients with head and neck cancer admitted to Department of Oncology of Affiliated Hospital of North Sichuan Medical College were selected and divided into experimental group (Group A, n=28, wearing 3D printed oral stents during radiotherapy) and control group (Group B, n=30, wearing corked oral stents during radiotherapy) in this retrospective cohort study. The incidence of radiotherapy - induced oral mucositis (RTOM), xerostomia and oropharyngeal mucosal pain was compared between two groups. Meanwhile, informed consent was obtained from 21 patients in Group A. Using the self control method, each patient wore a 3D printed oral stent (Group C) and a corked oral stent (Group D) to make two radiotherapy plans. The differences in the conformity index (CI), homogeneity index (HI) and exposure dose of OAR (D max, D mean) in the target area were analyzed between two groups. SPSS 25.0 statistical software was used for statistical analysis. Measurement data were expressed as Mean±SD. Comparison between two groups was conducted by paired t-test or repeated measurement analysis. Count data were expressed as ratio. Comparison between two groups was performed by Chi - square test or Fisher's exact test. P<0.05 was considered as statistically significant difference. Results:The severity of RTOM ( P<0.05), oropharyngeal mucosal pain ( P=0.004) and xerostomia score ( P<0.001) in Group A were significantly lower than those in Group B. There was no significant difference in the HI and CI of the target area between Group C and Group D (both P>0.05). The D max ( P=0.014, 0.009) and D mean ( P<0.001, P=0.033) of the upper lip and the affected buccal mucosa in Group C were significantly lower than those in Group D. Conclusion:3D printed oral stents obtain favorable HI and CI in radiotherapy for head and neck cancer, significantly reduce the irradiated dose to perioral OAR, and effectively lower the incidence and mitigate the severity of acute RTOM, xerostomia and oropharyngeal mucosal pain associated with radiotherapy.