Pimenta pseudocaryophyllus (Gomes) L. R. Landrum (Myrtaceae): stem and leaf anatomy of a medicinal plant

Conselho Nacional de Desenvolvimento Científico e Tecnológico(CNPq)

Leaf gas exchange and yield of three upland rice cultivars

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Non-destructive linear model for leaf area estimation in Vernonia ferruginea Less

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Soil and leaf nutrient content of tree species support deciduous forests on limestone outcrops as a eutrophic ecosystem

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

The length of the dry season may be associated with leaf scleromorphism in cerrado plants

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Changes in nuclear morphology and chromatin texture of basal keratinocytes in melasma

BackgroundThe pathogenesis of melasma and the role of keratinocytes in disease development and maintenance are not completely understood. Dermal abnormalities, the expression of inflammatory mediators, growth factors, epithelial expression of melanocortin and sexual hormones receptors suggest that not only melanocytes, but entire epidermal melanin unit is involved in melasma physiopathology.ObjectivesTo compare nuclear morphological features and chromatin texture between basal keratinocytes in facial melasma and adjacent normal skin.MethodsWe took facial skin biopsies (2mm melasma and adjacent normal skin) from women processed for haematoxylin and eosin. Thirty non-overlapping basal keratinocyte nuclei were segmented and descriptors of area, highest diameter, perimeter, circularity, pixel intensity, profilometric index (Ra) and fractal dimension were extracted using ImageJ software.ResultsBasal keratinocyte nuclei from facial melasma epidermis displayed larger size, irregular shape, hyperpigmentation and chromatin heterogeneity by fractal dimension than perilesional skin.ConclusionBasal keratinocytes from facial melasma display changes in nuclear form and chromatin texture, suggesting that the phenotype differences between melasma and adjacent facial skin can result from complete epidermal melanin unit alterations, not just hypertrophic melanocytes.

Leaf colleters in Tabernaemontana catharinensis (Apocynaceae, Rauvolfioideae): structure, ontogenesis, and cellular secretion

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Characterization of corn (Zea mays) leaf powder and Its adsorption properties regarding Cu(II) and Cd(II) from aqueous samples

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Genotoxic potential of the latex from cotton-leaf physicnut (Jatropha gossypiifolia L.)

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Mitochondrial and peroxisomal population in post-pharyngeal glands of leaf-cutting ants after lipid supplementation

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Leaf-cutter ant fungus gardens are biphasic mixed microbial bioreactors that convert plant biomass to polyols with biotechnological applications

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Leaf and inflorescence axis anatomy of Brazilian species of Rapateoideae (Rapateaceae, Poales)

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Vertical variation in autumn leaf phenology of Fagus sylvatica L. in southern Germany

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Effect of the addition of wheat fiber and partial pork back fat on the chemical composition, texture and sensory property of low-fat bologna sausage containing inulin and oat fiber

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Seed quality, chlorophyll content index and leaf nitrogen levels in maize inoculated with Azospirillum brasilense

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)