Hair Follicle
Mostrando 1-12 de 124 artigos, teses e dissertações.
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1. In vivo reflectance confocal microscopic findings in a case of trichofolliculoma
Abstract Trichofolliculoma is a rare follicular hamartoma whose dermoscopic features have been scarcely reported. On the other hand, reflectance confocal microscopy features have not been described yet. In the present study, the authors report reflectance confocal microscopy features in a case of trichofolliculoma as squamous hyperplasia forming irregular fi
Anais Brasileiros de Dermatologia. Publicado em: 2022
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2. Nanostructured Lipid Carriers Loaded with 17-α-Estradiol Accumulate into Hair Follicles
To improve 17-α-estradiol targeting in alopecia treatment, a formulation of nanostructured lipid carrier (NLC) prepared by the sonication method was developed. The physicochemical characterization showed an average diameter of 96 ± 15 nm and the average zeta potential of -17 ± 6 mV. In addition, the encapsulation efficiency (EE) of 17-α-estradiol, assess
J. Braz. Chem. Soc.. Publicado em: 2020-07
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3. Immunostaining study of cytokeratins in human hair follicle development,
Abstract Background: The hair follicle is a unique structure, one of the most dynamic structures in mammalians, which can reproduce in every new cycle all the mechanism involved in its fetal development. Although a lot of research has been made about the human hair follicle much less has been discovered about the importance of the cytokeratins (CKs) in its
An. Bras. Dermatol.. Publicado em: 2020-06
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4. Histopathological changes in epithelium of hair follicles and acrosyringium caused by measles in child,
Abstract Some epidermal alterations in measles has been described, such as keratinocytes apoptotic, parakeratosis, giant-cell formation, intranuclear and cytoplasmic inclusions, dyskeratosis, spongiosis, and intracellular edema. The authors report for the first time in human a case of measles with the presence of multinucleated giant cells in the hair follic
An. Bras. Dermatol.. Publicado em: 2020-03
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5. 6-Gingerol inhibits hair cycle via induction of MMP2 and MMP9 expression
ABSTRACT 6-Gingerol is the major active constituent of ginger. In the current study, we aimed to investigate the mechanisms underlying the effects of 6-Gingerol on hair growth. Mice were randomly divided into five groups; after hair depilation (day 0), mice were treated with saline, or different concentrations of 6-Gingerol for 11 days. The histomorphologica
An. Acad. Bras. Ciênc.. Publicado em: 2017-12
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6. Knockout of p16INK4a promotes aggregative growth of dermal papilla cells
Summary Objective: Dermal papilla cells (DPCs) are located in the hair follicles and play an important role in hair growth. These cells have the ability to induce hair follicle formation when they display aggregative behavior. DPCs derived from the androgenetic alopecia (AGA) area undergo premature senescence in vitro, associated with p16INK4a expression. T
Rev. Assoc. Med. Bras.. Publicado em: 2017-10
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7. Porokeratotic eccrine and hair follicle nevus: a report of two cases and review of the literature
Abstract: Porokeratotic eccrine and hair follicle nevus is a very rare non-hereditary disorder of keratinization with eccrine and hair follicle involvement with only 9 cases described in the literature. In 2009 the term porokeratotic anexial ostial nevus was proposed to comprehend porokeratotic eccrine and hair follicle nevus and a related and more common pr
An. Bras. Dermatol.. Publicado em: 2017
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8. Benign follicular tumors
Abstract: Benign follicular tumors comprise a large and heterogeneous group of neoplasms that share a common histogenesis and display morphological features resembling one or several portions of the normal hair follicle, or recapitulate part of its embryological development. Most cases present it as clinically nondescript single lesions and essentially of de
An. Bras. Dermatol.. Publicado em: 2015-12
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9. Three different clinical faces of the same histopathological entity: hair follicle nevus, trichofolliculoma and accessory tragus
AbstractBACKGROUND:Hair follicle nevus is a rare, congenital hamartoma with follicular differentiation characterized histologically by numerous, tiny, mature hair follicles. Trichofolliculoma, the histopathological features of which are quite similar to those of hair follicle nevus, is also a hamartoma that differs from hair follicle. Accessory tragus is a r
An. Bras. Dermatol.. Publicado em: 2015-08
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10. Black women’s hair: the main scalp dermatoses and aesthetic practices in women of African ethnicity
Abstract:Afro-ethnic hair is different from Caucasian and Asian hair and has unique features. Ethnic hair is more prone to certain conditions or diseases. Such diseases are not only related to the fragile inner structure of the hair, but also to the cultural habits of hairstyles that often exert traction forces upon the pilosebaceous follicle. Women with Afr
An. Bras. Dermatol.. Publicado em: 2015-08
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11. The cuticular profile of the aristiform hair as a characteristic feature of Abrawayaomys (Rodentia: Cricetidae)
ABSTRACT The cuticle is the outermost of the three cellular layers of the mammalian hair. It comprises numerous keratinized scales, whose morphology, combined with other microscopic characteristics of the hair, confers characteristic signature traits to various different species. This study aimed to analyze whether the cuticular patterns of the aristiform ha
Zoologia (Curitiba). Publicado em: 2015-08
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12. Vitiligo - Part 2 - classification, histopathology and treatment
In an unprecedented effort in the field of vitiligo, a global consensus resulted on a suggested new classification protocol for the disease. The main histopathological finding in vitiligo is the total absence of functioning melanocytes in the lesions, while the inflammatory cells most commonly found on the edges of the lesions are CD4+ and CD8+ T lymphocytes
An. Bras. Dermatol.. Publicado em: 2014-09