The effect of lead application on nutrient and Pb content and accumulation in ipê-roxo (Tabebuia impetiginosa (Mart.) Standl.) seedlings was studied in an experiment conducted under greenhouse conditions at the Soil Science Department of the Federal University of Lavras. The seedlings were cultivated in Clark nutrient solution and submitted to increasing Pb levels: 0, 48, 96, 192 and 288 μmol/l...

S.J. Mills,* M.D. Farrar,* G.S. Ashcroft, C.E.M. Griffiths, M.J. Hardman and L.E. Rhodes Faculty of Life Sciences, University of Manchester, Manchester Academic Health Science Centre, Manchester, UK Dermatology Centre, Institute of Inflammation and Repair, University of Manchester, Manchester Academic Health Science Centre, Salford Royal NHS Foundation Trust, Manchester, UK *These authors contr...

Continuous measurements of sap fow have been widely used to measure water fux through tree stems and branches. However, these measurements lack the resolution necessary for determining fne-scale, leaf-level responses to environmental variables. We used the heat ratio method to measure sap fow rates through leaf petioles and leafet petiolules of saplings of the tropical tree Tabebuia rosea (Bign...

This review summarizes the historical and more recent developments of multiphoton microscopy, as applied to dermatology. Multiphoton microscopy offers several advantages over competing microscopy techniques: there is an inherent axial sectioning, penetration depths that compete well with confocal microscopy on account of the use of near-infrared light, and many two-photon contrast mechanisms, s...

Leaves of Tabebuia bahamensis, collected on Abaco Island, Bahamas, were dried and extracted with dichloromethane to yield a crude extract. Using preparative flash column chromatography on silica gel, enabled the isolation of ursolic acid with an excellent yield of 2.06 percent based on the mass of dry leaves. Both the crude leaf extract and ursolic acid produced selective in-vitro cytotoxic act...

Tissue injury involves coordinated systemic responses including inflammatory response, targeted cell migration, cell-cell communication, stem cell activation and proliferation, and tissue inflammation and regeneration. The inflammatory response is an important prerequisite for regeneration. Multiple studies suggest that extensive cell-cell communication during tissue regeneration is coordinated...

BACKGROUND Among the vertebrates, teleost and urodele amphibians are capable of regenerating their central nervous system. We have used zebrafish as a model to study spinal cord injury and regeneration. Relatively little is known about the molecular mechanisms underlying spinal cord regeneration and information based on high density oligonucleotide microarray was not available. We have used a h...

Acne vulgaris is a common skin condition encountered in specialties outside of dermatology, including obstetrics and gynecology. The pathophysiology acne complex includes disruption the cutaneous microbiome, abnormal keratinization, inflammation, hormonal influences. Various topical systemic treatment modalities target each component pathophysiology. Clinically, can be broken down into noninfla...