Pigmentation
Mostrando 1-12 de 658 artigos, teses e dissertações.
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1. Characterization of Fusarium spp. causal agent of wilt in pecan
ABSTRACT One of the limiting factors for pecan production is the incidence of disease caused by Fusarium spp. which are a threat to orchards in the south of the country. Therefore, the study aimed to confirm the pathogenicity and evaluate the morphophysiological and molecular characteristics of Fusarium spp. associated with pecan in Rio Grande do Sul and Par
Revista Ceres. Publicado em: 2022
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2. Fibroblast morphology, growth rate and gene expression in facial melasma
Abstract Background: In addition to melanocytic hyperfunction, changes are observed in the upper dermis of melasma, and fibroblasts play a central role in collagen synthesis and pigmentation induction. Objective: To explore the morphology, growth rate, and gene expression profile of fibroblasts from the skin with melasma in comparison to fibroblasts from t
Anais Brasileiros de Dermatologia. Publicado em: 2022
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3. Evaluation of ex vivo melanogenic response to UVB, UVA, and visible light in facial melasma and unaffected adjacent skin,
Abstract Background: The independent role of solar radiation in the differential melanogenesis between melasma and adjacent skin is unknown. Objectives: To assess the melanogenic responses of skin with facial melasma and of the adjacent skin to UVB, UVA, and visible light, in an ex vivo model. Methods: This was a quasi-experimental study involving 22 pati
An. Bras. Dermatol.. Publicado em: 2020-12
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4. Effect of planting date on postharvest quality of roots of different carrot cultivars grown in the Brazilian semiarid region
ABSTRACT In regions with high temperatures, carrot cultivation is difficult because high temperatures tend to reduce the size and pigmentation of the root and, consequently, the yield and quality of the product. However, with the advent of summer cultivars, the cultivation of quality carrots under high temperatures has been viable. The aim of this work was t
Rev. Ceres. Publicado em: 2020-10
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5. Sporadic form of epidermolysis bullosa simplex with mottled pigmentation,
RESUMO A Covid-19 é uma ameaça global que atrai pesquisadores de todas as áreas a fim de conhecer a história natural da doença e seus parâmetros epidemiológicos. O desenvolvimento tecnológico de vacinas, testes para diagnóstico e alvos terapêuticos tem mobilizado grande quantidade de recursos em curto tempo. A Avaliação de Tecnologias em Saúde (
An. Bras. Dermatol.. Publicado em: 2020-08
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6. Comparison of different approaches to small saphenous vein reflux treatment: a retrospective study in two centers
ABSTRACT BACKGROUND: Diagnosis and treatment of small saphenous vein (SSV) insufficiency is of utmost importance for relieving chronic venous insufficiency symptoms. OBJECTIVES: To investigate the efficacy and safety of five different treatment approaches among patients with SSV insufficiency. DESIGN AND SETTING: Two-center retrospective clinical study
Sao Paulo Med. J.. Publicado em: 2020-03
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7. In vivo and ex vivo dermoscopy of lesions from implantation of human papillomavirus in tattoos: report of two cases,
Abstract The number of individuals with tattoos has been increasing worldwide, alongside with reports of complications varying from reactions to the injected pigments to infections caused by agents inoculated in the pigmentation process. The diagnosis of such unwanted events can be obtained through complementary non-invasive methods, preserving the maximum o
An. Bras. Dermatol.. Publicado em: 2020-02
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8. Standardization of organoid culture for evaluation of melanogenesis induced by UVB, UVA and visible light,
Abstract Background: Organoid cultures are primary cultures that maintain architectural characteristics and the relationships between cells, as well as the extracellular matrix. They are alternatives for pathophysiological or therapeutic investigation rather than animal and in vitro tests. Objective: Development of a cutaneous organoid culture model, aimin
An. Bras. Dermatol.. Publicado em: 2020-02
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9. Chemical and structural composition of black pigmented supragingival biofilm of bovines with periodontitis
RESUMO: A periodontite bovina é uma infecção multifatorial associada primariamente à microbiota potencialmente patogênica presente no biofilme bucal. Biofilmes são estruturas organizadas, nas quais os constituintes convivem em simbiose, descritos em outras espécies como um fator predisponente à periodontite. O objetivo do presente estudo foi caracter
Pesq. Vet. Bras.. Publicado em: 10/01/2020
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10. Albinism: epidemiology, genetics, cutaneous characterization, psychosocial factors
Abstract Oculocutaneous albinism is an autosomal recessive disease caused by the complete absence or decrease of melanin biosynthesis in melanocytes. Due to the reduction or absence of melanin, albinos are highly susceptible to the harmful effects of ultraviolet radiation and are at increased risk of actinic damage and skin cancer. In Brazil, as in other par
An. Bras. Dermatol.. Publicado em: 09/12/2019
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11. Melanin bleaching with potassium permanganate for melanocytic lesions diagnosis in veterinary medicine
RESUMO Este estudo objetivou reavaliar microscopicamente os diagnósticos de lesões melanocíticas estabelecidos pelo setor de Patologia Animal da Universidade Federal de Uberlândia, em um período de 11 anos, e, com base nesse levantamento, realizar uma análise comparativa entre o método histopatológico convencional (HC) e o método de despigmentação
Arq. Bras. Med. Vet. Zootec.. Publicado em: 28/10/2019
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12. Macroscopic embryonic development of Guinea fowl compared to other domestic bird species
ABSTRACT Since few studies have addressed the embryonic development of Guinea fowl (Numida meleagris), the objective of the present study was to evaluate its embryonic development in the Cerrado region of Brazil and compare the results to published descriptions of the embryonic development of other domestic bird species. The commercialized weight for Guinea
R. Bras. Zootec.. Publicado em: 17/10/2019