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The pyrokinin/pheromone-biosynthesis-activating neuropeptide (PBAN) family of peptides found in insects is characterized by a 5-amino-acid C-terminal sequence, FXPRLamide. The pentapeptide is the active core required for diverse physiological functions, including the stimulation of pheromone biosynthesis in female moths, muscle contraction, induction of embryonic diapause, melanization, acceleration...
The anthracycline antibiotic daunomycin (DM) is useful for the treatment of leukemia but has side-effects such as alopecia. Using immunocytochemistry, we show that, after a single i.v. injection, DM accumulates in the nuclei of matrix cells and in the outer root sheath of hair follicles. DM-positive matrix cells are detectable up to 48 h after injection and exhibit a characteristic granular morphology,...
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