Marietta Kaszkin

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After water, tea is the most popular beverage and is consumed by two thirds of the world's population. Three types of tea are available; they vary in the processes of drying and fermentation. Besides black tea, which is the most prevalent form (78%), green tea (20%) and oolong (2%) are produced. The tea plant Camellia sinensis is native to South China and(More)
Hypoxia evokes a common mechanism of oxygen sensing mediated by hypoxia-inducible transcription factors (HIF) in many mammalian cells. This study investigated the effect of hypoxia on group-IIA secretory phospholipase A(2) (sPLA(2)-IIA) expression in renal mesangial cells. Stimulation of cells with IL-1beta under normoxic conditions (21% O(2)) is known to(More)
An immediate effect of epidermal growth factor (EGF) on the cell cycle is described. EGF, when given to replicating cells such as I lei a, A431, and D HER 14, very rapidly inhibits the transition from <;, phase to mitosis (M) in a transient fashion. The influence of EGF (10~'° to IO"7 M concentrations) on the (,;-M transition of individual cells has been(More)
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