نتایج جستجو برای: keratinization disorders
تعداد نتایج: 671844 فیلتر نتایج به سال:
Keratinized mucosa is of fundamental importance to maintain healthy gingival tissue, and understanding the mechanisms of oral mucosa keratinization is crucial to successfully manage healthy gingiva. Previous studies have shown a strong involvement of the basement membrane in the proliferation and differentiation of epithelial cells. Therefore, first, to identify the keratinized mucosa-specific ...
Several reports have suggested that mesenchymal glycosaminoglycans (GAG) may be involved in the regulatory role of epithelial differentiation. Some researchers have pointed out that exogenous GAG affects extracellular GAG accumulation. We have therefore examined the effect of added GAG on two typical processes of avian skin differentiation: keratinization and feather formation. Glycosaminoglyca...
Leukoplakias are oral lesions that may have many clinical and histological aspects and they are usually associated with malignancy when dysplastic alterations are shown. However, these transformations may occur in non-dysplastic lesions that show harmless clinical aspect. For this reason, the proposal was to study the p53 and PCNA immunohistochemical expression in non-dysplastic leukoplakias, t...
The Nara Bladder Tumor No. 2 cell line, established from a urinary bladder carcinoma in the Wistar rat, formed keratinizing cells and multicellular pearls in meniscus gradient culture when fed with a medium of 15 or 30% fetal calf serum in Eagle's minimal essential medium. Confluent monolayer cultures were first prepared with the tubes in conventional horizontal position. When cultures were the...
Porokeratoses are uncommon hereditary or acquired keratinization disorders due to abnormal clones of keratinocytes in the epidermis. Porokeratoses have several clinical features which may occur simultaneously. A rare type is verrucous porokeratosis (VPK). Herein, we present a 47-year-old man with a 4-year history of perianal verrucous lesions and one year history of annular pruritic lesions on ...
Collections of exfoliated cells on Millipore filters, which retain the topographical relationships of the cells collected, previously have been used to examine keratinization and inflammation of adult gingivae. In the present study, samples of epithelial and inflammatory cells were obtained from the anterior maxillary gingivae of threeto five-year-old children using this technique. The oral hyg...
Harlequin ichthyosis is the most severe form of congenital ichthyoses with horny (Keratinized) and chapped thick skin throughout the body. In this disease, disruption in keratinization of epidermis results in the impaired barrier function and susceptibility of the neonate to dehydration and infection. In this article, a term male neonate with harlequin ichthyosis, born of a 29-year-old mother, ...
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