2016
DOI: 10.1177/0269881116660705
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Anxiolytic activity of the neuroprotective peptide HLDF-6 and its effects on brain neurotransmitter systems in BALB/c and C57BL/6 mice

Abstract: This study is focused on a new amide derivative of the peptide HLDF-6 (Thr-Gly-Glu-Asn-His-Arg). This hexapeptide is a fragment of Human Leukaemia Differentiation Factor (HLDF). It displays a broad range of nootropic and neuroprotective activities. We showed, for the first time, that the peptide HLDF-6-amide has high anxiolytic activity. We used 'open field' and 'elevated plus maze' tests to demonstrate anxiolytic effects of HLDF-6-amide (0.1 and 0.3 mg/kg intranasally), which were comparable to those of the r… Show more

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Cited by 14 publications
(4 citation statements)
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“…Hence, the AF of HLDF-6 peptide restores the amount of NMDA receptors to its normal level, thus improving cognitive behavior. Subchronic fivefold injection of the AF of HLDF-6 peptide had no effect on the densities of GABA receptors and nicotinic cholinoreceptors but was accompanied by a decrease in the density of 5-HT2 serotonin receptors [ 35 ]. A conclusion was drawn that the mechanism of formation of the neuroprotective activity of Thr-Gly-Glu-Asn-His-Arg-NH2 peptide may involve an effect on the glutamate and serotoninergic systems.…”
Section: Discussionmentioning
confidence: 99%
“…Hence, the AF of HLDF-6 peptide restores the amount of NMDA receptors to its normal level, thus improving cognitive behavior. Subchronic fivefold injection of the AF of HLDF-6 peptide had no effect on the densities of GABA receptors and nicotinic cholinoreceptors but was accompanied by a decrease in the density of 5-HT2 serotonin receptors [ 35 ]. A conclusion was drawn that the mechanism of formation of the neuroprotective activity of Thr-Gly-Glu-Asn-His-Arg-NH2 peptide may involve an effect on the glutamate and serotoninergic systems.…”
Section: Discussionmentioning
confidence: 99%
“…Реакции нейронов на тактильные раздражения головы и ноги после отмывания пептида не изменялись. В исследованиях на различных экспериментальных моделях у млекопитающих также показано сходство эффектов HLDF-6, применяемых в широком диапазоне доз [1,5].…”
Section: результаты исследования и их обсуждениеunclassified
“…Таким образом, обнаруженный нами депрессивный эффект пептида HLDF-6 на синаптическую передачу может опосредоваться через NMDA рецепторы. Это предположение согласуется с данными, полученными в исследованиях на млекопитающих, в которых показано, что HLDF-6 избирательно вовлечен в механизмы регуляции содержания NMDA рецепторов на мембранах [1,5].…”
Section: рис 1 действие пептида Hldf-6 на возбудимость и ответы интunclassified
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