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Comparative Analysis of Cytomorphology in Adolescent and Geriatric Patients: A Cross-Sectional Study.
Cureus
September 2023
Oral Pathology and Microbiology, Saveetha Dental College and Hospital, Saveetha Institute of Medical and Technical Sciences (Deemed to be University), Chennai, IND.
Background Exfoliation of the surface cells of the normal epithelium occurs as a result of physiological turnover. Epithelial cells are constantly renewed, and they are exfoliated or shed as they migrate from the basal layer to the uppermost layer of the epithelium. Oral exfoliative cytology involves the collection and microscopic evaluation of these shed cells or scraped epithelial cells, quantitatively and qualitatively.
View Article and Find Full Text PDFFood-grade titanium dioxide translocates across the buccal mucosa in pigs and induces genotoxicity in an model of human oral epithelium.
Nanotoxicology
June 2023
Toxalim UMR1331 (Research Centre in Food Toxicology), Toulouse University, INRAE, ENVT, INP-Purpan, UPS, Toulouse, France.
The whitening and opacifying agent titanium dioxide (TiO) is used worldwide in various foodstuffs, toothpastes and pharmaceutical tablets. Its use as a food additive (E171 in EU) has raised concerns for human health. Although the buccal mucosa is the first area exposed, oral transmucosal passage of TiO particles has not been documented.
View Article and Find Full Text PDFMain patterns of radula formation and ontogeny in Gastropoda.
J Morphol
January 2023
A.N. Severtsov Institute of Ecology and Evolution, Moscow, Russia.
Article Synopsis
- Gastropoda, a diverse group of mollusks, exhibit a wide variety of feeding strategies, ranging from eating decayed organic matter to specialized predation, due to their morphologically complex feeding apparatus.
- A key feature of gastropods is the radula, a chitinous ribbon with teeth that undergoes continuous renewal throughout the organism's life, reflecting adaptations within different evolutionary lineages.
- The formation of the radula begins in the larval stage, with distinctive types emerging in major phylogenetic groups, such as the docoglossan, rhipidoglossan, and taenioglossan radulas, which feature varying numbers and arrangements of teeth.
Morphology, morphogenesis and phylogeny of a new soil ciliate, Bistichella sinensis n. sp., and morphology of two oxytrichids (Ciliophora, Hypotrichia).
Eur J Protistol
October 2022
Laboratory of Protozoological Biodiversity and Evolution in Wetland, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China. Electronic address:
The living morphology, infraciliature, morphogenesis and phylogenetic position of a new soil ciliate, Bistichella sinensis n. sp. collected from Northwest of China, were investigated.
View Article and Find Full Text PDFMorphology, Morphogenesis and Molecular Phylogeny of a New Soil Ciliate, Holostichides eastensis nov. spec. (Ciliophora, Hypotrichia).
Protist
June 2022
Laboratory of Protozoological Biodiversity and Evolution in Wetland, College of Life Sciences, Shaanxi Normal University, Xi'an 710119, China. Electronic address:
A new bakuellid ciliate, Holostichides eastensis nov. spec. isolated from China, is investigated in terms of its morphology, ontogenesis, and molecular phylogenesis.
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