Equisetum species show uniform epicuticular wax structures but diverse composition patterns.

Background And Aims: Only few data on the epicuticular waxes (EWs) of horsetails are available. This contribution therefore focuses on the wax micromorphology and chemical composition of Equisetum species of the subgenera Equisetum and Hippochaete.

Methodology: Distribution patterns and structural details of EW on the shoots were studied by scanning electron microscopy.

Time-trends in the epidemiology of peptic ulcer bleeding.

Objective: Despite the introduction of effective medical treatment of peptic ulcer disease, bleeding is still a frequent complication. The aim of this study was to investigate whether the incidence and the risk profile of peptic ulcer haemorrhage have changed within a 10-year period.

Material And Methods: In a prospective epidemiological and observational study the incidence and risk profile of peptic ulcer haemorrhage in Düsseldorf, Germany were compared between two time periods (period A: 1.

Cuticular waxes and flavonol aglycones of mistletoes.

Cuticular waxes of Viscum album subspecies and of V. cruciatum have been examined for their micromorphology and chemical composition. Wax crystalloids occur preferably as irregular platelets and rodlets, while deviant structures are found in small areas.