Aim: The aim of this study is to evaluate the gingival melanin pigmentation in the Indian pediatric population. The aim of this study is to find any association between age and melanin distribution, age and intensity of melanin distribution, sex and melanin distribution, sex and intensity of melanin distribution, skin tone and melanin distribution, skin tone and intensity of melanin distribution and finally the association between melanin distribution and intensity.
Background: Pigmentation on the interdental papilla, attached and marginal gingiva is commonly found in various races across the world. There is lack of literature for documentation of the same in the pediatric population.
Materials And Methods: Intensity of melanin pigmentation was observed by the gingival melanin pigmentation index (class 1- class 6) as given by Ponnaiyan This cross-sectional, observational study was conducted in the Institution. 100 children were selected from the age group of 1-12 years of age. The association between the various parameters were verified using Chi square test.
Results: With the findings of the present study, it can be concluded that the distribution of melanin pigmentation is not affected by age, sex and skin color. The intensity of melanin pigmentation is not affected by age and sex. The skin colour can be used as a predictor to know the intensity of melanin pigmentation in both anteriors and posteriors.
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http://dx.doi.org/10.4103/jfmpc.jfmpc_332_19 | DOI Listing |
Bioengineered
December 2025
Department of Translational Medical Bioengineering, National Technical University of Ukraine "Igor Sikorsky Kyiv Polytechnic Institute", Kyiv, Ukraine.
This article presents new data on the integrated use of colloidal solutions of nanoparticles and low-intensity laser radiation on the biosynthetic activity of the medicinal mushroom . Traditional mycological methods, colloidal solutions of biogenic metals, and unique photobiological methods have also been used. It was found that colloidal solutions of nanoparticles of all metals used increased the growth characteristics of (55-60%), while irradiation of the fungal inoculum with laser light in a medium with nanoparticles reduced the growth activity of mycelia by 12.
View Article and Find Full Text PDFJ Cosmet Laser Ther
January 2025
Department of Pharmaceutics, KLE College of Pharmacy Belagavi, KLE Academy of Higher Education and Research, Belagavi, India.
Hyperpigmentation is a common dermatological condition characterized by the darkening of patches of skin compared to the surrounding areas. It can occur in individuals of all skin types and ethnicities, and is caused by an overproduction or accumulation of melanin, the pigment responsible for the color of our skin, hair, and eyes. This comprehensive overview aims to delve into the various types, causes, risk factors, clinical manifestations, diagnosis, and treatment options for hyperpigmentation.
View Article and Find Full Text PDFBMC Genomics
January 2025
Guangdong Research Center On Reproductive Control and Breeding Technology of Indigenous Valuable Fish Species, Guangdong Provincial Key Laboratory of Aquatic Animal Disease Control and Healthy Culture, Fisheries College, Guangdong Ocean University, Zhanjiang, 524088, China.
Background: Spotted scat, a marine aquaculture fish, has variable body color development stages during their ontogenesis. However, the regulatory mechanism of body color patterns formation was poorly understood. Thyroid hormones (TH) function as an important endocrine factor in regulating metamorphosis.
View Article and Find Full Text PDFDiagn Cytopathol
January 2025
Department of Pathology, Kanazawa Medical University Hospital, Ishikawa, Japan.
Background: Phaeohyphomycosis is a very rare fungal infection, which is one of more usual complications in immunocompromised and/or traumatic patients, has never been reported especially in a cytological field. We describe a first case of subcutaneous phaeohyphomycosis caused by Exophiala xenobiotica (E. xenobiotica) in a poorly controlled diabetic patient, and in which a correct cytological diagnosis of phaeohyphomycosis was possible to conclude.
View Article and Find Full Text PDFUnlabelled: Melanin pigments block genotoxic agents by positioning on the sun-exposed side of human skin keratinocytes' nucleus. How this position is regulated and its role in genome photoprotection remains unknown. By developing a model of human keratinocytes internalizing extracellular melanin into pigment organelles, we show that keratin 5/14 intermediate filaments mechanically control the 3D perinuclear position of pigments, shielding DNA from photodamage.
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