Slavina Surcheva

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Several peptides, including penetratin and Tat, are known to translocate across the plasma membrane. Dynorphin opioid peptides are similar to cell-penetrating peptides in a high content of basic and hydrophobic amino acid residues. We demonstrate that dynorphin A and big dynorphin, consisting of dynorphins A and B, can penetrate into neurons and(More)
Opioid and non-opioid effects of acute and chronic morphine administration on behaviour, cardiovascular responses, cell proliferation and apoptosis and nitric-oxide synthase (NOS) activity were studied in rats. A novel score-point scale was introduced to quantify the signs of opioid withdrawal syndrome. NOS inhibitor L-NAME (N G-nitro-L-arginine methyl(More)
An analytical review was made on the pathophysiological mechanisms suspected to be involved in dyspnea, accepting that the sensation of shortness of breathing, and the subjective signs (exertion, anxiety and fear) are essential for the diagnosis of this condition. Bearing in mind the anatomical relations in the central nervous system between the structures(More)
Cover page: Schematic binding of dynorphin to the biomembrane and its effects viewed by different spectroscopic techniques A ma femme, mon père, ma mère, ma soeur et mon frère Abstract Dynorphin A, dynorphin B and big dynorphin, collectively known as dynorphins, are endogenous opioid neuropeptides. Dynorphins are widely distributed in the central nervous(More)
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