Background: The word "Cancer" itself is sufficient to cause a fear in the minds of people. Early detection of oral potentially malignant and malignant disorders is still a diagnostic challenge for most of the clinicians. In the present study, we have evaluated the efficacy of Rose Bengal staining in the detection of oral premalignant and malignant lesions.
Aim: The aim of the study was to evaluate the efficacy of the Rose Bengal staining for the identification of dysplastic areas clinically, and then correlating the findings with the histological grading of dysplasia.
Methods And Materials: A total of 20 patients were selected for the study. Patients had been evaluated clinically and histopathologically along with the grading of dysplasia, and Rose Bengal stain was painted over the lesional mucosa with the patient's consent. Incisional biopsies were taken from the stained area of the Rose Bengal dye, and studied histopathologically. Grading of dysplasia and intensity of the Rose Bengal staining were found to be correlated. Chi square test was performed and a statistical significance of P<0.001 was observed. Statistical significance was defined as P<0.001.
Results And Conclusion: Grading of dysplasia and the intensity of Rose Bengal staining were directly proportional to each other according to this study. P value was found to be significant. Thus Rose Bengal stain can be used as a diagnostic aid in the detection of oral potentially malignant and malignant disorders.
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http://dx.doi.org/10.4103/0970-9290.107326 | DOI Listing |
Vet Sci
December 2024
Institute of Biotechnology, Addis Ababa University, Addis Ababa P.O. Box 1176, Ethiopia.
Brucellosis is a common zoonotic disease affecting livestock and humans globally. The disease is endemic in Ethiopian livestock. This study was conducted to estimate seropositivity and identify its risk factors in livestock, and practices that may expose pastoralists to the disease.
View Article and Find Full Text PDFNanomaterials (Basel)
December 2024
Departamento de Química Física, Facultad de Ciencia y Tecnología, Universidad del País Vasco, UPV-EHU, Apartado 644, 48080 Bilbao, Spain.
Antimicrobial resistance (AMR), a consequence of the ability of microorganisms, especially bacteria, to develop resistance against conventional antibiotics, hampering the treatment of common infections, is recognized as one of the most imperative health threats of this century. Antibacterial photodynamic therapy (aPDT) has emerged as a promising alternative strategy, utilizing photosensitizers activated by light to generate reactive oxygen species (ROS) that kill pathogens without inducing resistance. In this work, we synthesized silica nanoparticles (NPs) of different sizes (20 nm, 80 nm, and 250 nm) functionalized with the photosensitizer Rose Bengal (RB) and a gluconamide ligand, which targets Gram-negative bacteria, to assess their potential in aPDT.
View Article and Find Full Text PDFHeliyon
December 2024
Civil Engineering Department, College of Engineering, University of Sulaimani, Kurdistan Region, Iraq.
This study compares magnetite (Fe3O4) nanoparticles synthesized using Aspergillus elegans extract versus commercially available magnetite nanoparticles, focusing on their efficacy in dye degradation. The biosynthesis of Fe3O4 nanoparticles using fungal extracts offers a sustainable and eco-friendly alternative to conventional chemical methods. The nanoparticles were characterized using various techniques, including UV-Vis spectroscopy, XRD, FTIR, SEM, TEM, DLS, zeta potential, and VSM analysis, to assess their structural, morphological, and magnetic properties.
View Article and Find Full Text PDFSci Rep
December 2024
Entomology department, Faculty of Science, Ain Shams University, Cairo, Egypt.
Photosensitizing compounds are eco-friendly promising organic dyes for managing insect pests without facing the risk of resistance. The photodynamic efficacy of four Photosensitizing compounds (rose Bengal, rhodamine B, methylene blue and methyl violet) was monitored against the third larval instar of Spodoptera littoralis (Boisduval), after exposure to sunlight. The LC values of the four compounds; rose Bengal, rhodamine B, methylene blue and methyl violet recorded 0.
View Article and Find Full Text PDFPhotochem Photobiol Sci
December 2024
Instituto Universitario Mixto de Tecnología Química (UPV-CSIC), Universitat Politècnica de València, Consejo Superior de Investigaciones Científicas, Avda de los Naranjos s/n, 46022, Valencia, Spain.
Photophysical and photochemical studies were carried out to examine the photoreactivity of etheno adducts, 1,N-ethenoadenine (εdA) and 1,N-ethenoguanine (εdG), in the presence of two well-known photosensitizers acting by Type I and/or Type II mechanisms such as 4-carboxybenzophenone (CBP) and rose Bengal (RB), respectively. Steady-state photolysis experiments combined with HPLC and mass spectroscopy measurements lead to photoproducts that correspond to the repaired nucleosides. To determine the mechanism of this photooxidation processes, phosphorescence spectroscopy, direct detection of singlet oxygen luminescence and laser flash photolysis were carried out.
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