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Selank...for stress reduction
- Thread starter John Juan
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John Juan
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I have read a lot about selank in the last year and it sounds like it would be incredible for general/social anxiety and stress in general
The two guys I know who use selank said it makes stress so much easier to handle.
John Juan
New member
[Experimental optimization of learning and memory processes by selank].
AuthorsSemenova TP, et al. Show all Journal
Eksp Klin Farmakol. 2010 Aug;73(8):2-5. Article in Russian.
Affiliation
Abstract
The effect of selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro), which is a synthetic derivative of the endogenous tetrapeptide tuftsin (stable with respect to tissue peptidases), on the learning and memory processes and metabolism of serotonin (5-HT) have been experimentally studied on Wistar rats. The animals were trained with food reward in 30 trials per day. Selank (300 microg/kg) or saline were injected after the 10th trial. Elaboration of conditioned reflex with food reward was continued 30 min later. Retention was tested 24 h, 7 and 30 days after treatment. A single injection of selank activated the metabolism of 5-HT in the hypothalamus and caudal brain stem for 30 min to 2 h. It was established that selank induces an increase in memory trace stability during 30 days. These findings provide direct evidence that selank, when injected during consolidation phase, can enhance memory storage processes. Nootrope activity of the selank is probably caused by its obvious effect on the level of serotonin and its metabolite in the brain.
PMID 20919548 [PubMed - indexed for MEDLINE]
AuthorsSemenova TP, et al. Show all Journal
Eksp Klin Farmakol. 2010 Aug;73(8):2-5. Article in Russian.
Affiliation
Abstract
The effect of selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro), which is a synthetic derivative of the endogenous tetrapeptide tuftsin (stable with respect to tissue peptidases), on the learning and memory processes and metabolism of serotonin (5-HT) have been experimentally studied on Wistar rats. The animals were trained with food reward in 30 trials per day. Selank (300 microg/kg) or saline were injected after the 10th trial. Elaboration of conditioned reflex with food reward was continued 30 min later. Retention was tested 24 h, 7 and 30 days after treatment. A single injection of selank activated the metabolism of 5-HT in the hypothalamus and caudal brain stem for 30 min to 2 h. It was established that selank induces an increase in memory trace stability during 30 days. These findings provide direct evidence that selank, when injected during consolidation phase, can enhance memory storage processes. Nootrope activity of the selank is probably caused by its obvious effect on the level of serotonin and its metabolite in the brain.
PMID 20919548 [PubMed - indexed for MEDLINE]
John Juan
New member
Type: Journal Article, Randomized Controlled Trial, Comparative Study, English Abstract (lang: rus)
Abstract Highlight Terms
Diseases(3) Genes/Proteins(3)
Sixty-two patients with generalized anxiety disorder (GAD) and neurasthenia were studied. The effect of selank (30 patients) was compared to that of medazepam (32 patients). Patient's state was assessed with psychometric scales (Hamilton, Zung, CGI). Enkephalin activity in the blood serum was measured as well. The anxiolytic effects of both drugs were similar but selank had also antiasthenic and psychostimulant effects. The clinical-biological study revealed that patients with GAD and neurasthenia had the decreased level of tau(1/2) leu-enkephalin which was correlated with disease duration, severity of symptoms related to anxiety and asthenia and autonomic disorders. The increase of this parameter and stronger positive correlations with anxiety level were observed during the treatment with selank mostly in patients with GAD.
Abstract Highlight Terms
Diseases(3) Genes/Proteins(3)
Sixty-two patients with generalized anxiety disorder (GAD) and neurasthenia were studied. The effect of selank (30 patients) was compared to that of medazepam (32 patients). Patient's state was assessed with psychometric scales (Hamilton, Zung, CGI). Enkephalin activity in the blood serum was measured as well. The anxiolytic effects of both drugs were similar but selank had also antiasthenic and psychostimulant effects. The clinical-biological study revealed that patients with GAD and neurasthenia had the decreased level of tau(1/2) leu-enkephalin which was correlated with disease duration, severity of symptoms related to anxiety and asthenia and autonomic disorders. The increase of this parameter and stronger positive correlations with anxiety level were observed during the treatment with selank mostly in patients with GAD.
John Juan
New member
SELANK FOR DEPRESSION
[Effects of heptapeptide selank on genetically-based and situation-provoked symptoms of depression in behavior in WAG/Rij and Wistar rats, and in BALB/c mice].
AuthorsSarkisova KIu, et al. Show all Journal
Zh Vyssh Nerv Deiat Im I P Pavlova. 2008 Mar-Apr;58(2):226-37. Article in Russian.
Affiliation
Abstract
A synthetic derivative of the endogenous peptide tuftsin heptapeptide selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro) possesses an anxiolytic and psychostimulant effect, and represents a working element of a new peptide drug having completed the third phase of the clinical testing as a selective anxiolytic. The neurobiochemical spectrum of selank action combines mechanisms which are characteristics of antidepressants and psychostimulants: activation of the brain monoaminergic systems, dopamine synthesis and turnover, and modulation of the tyrosine hydroxylase activity. The aim of this study was to investigate the effect of selank in a new model of inherited (genetically-based) symptoms of depression in behavior of inbred WAG/Rij rats in comparison with its effect on situation-provoked symptoms of depression in behavior of BALB/c mice. Outbred Wistar rats constituted control group. Selank in high doses (1000-2000 microg/kg), after repeated injection counteracted symptoms of depression in behavior of WAG/Rij rats (increased immobilization in the forced swimming test and decreased sucrose intake or preference (anhedonia)). Selank in low doses (100 and 300 microg/kg) after single injection reduced the duration of immobility of BALB/c mice in the forced swimming test, but did not exert significant effect after repeated injection or after injection in high doses (600 and 900 microg/kg). Selank did not affect the level of general locomotor activity and anxiety in WAG/Rij rats, and did not exert substantial effect on the behavior of control Wistar rats. The results demonstrate the presence of antidepressant component in the spectrum of neuropsychotrophyc activity of selank and indicate the higher reliability of a new experimental model of depression (the WAG/Rij rats) as compared to the standard forced swimming test for the determination of antidepressant activity of a pharmacological drug.
[Effects of heptapeptide selank on genetically-based and situation-provoked symptoms of depression in behavior in WAG/Rij and Wistar rats, and in BALB/c mice].
AuthorsSarkisova KIu, et al. Show all Journal
Zh Vyssh Nerv Deiat Im I P Pavlova. 2008 Mar-Apr;58(2):226-37. Article in Russian.
Affiliation
Abstract
A synthetic derivative of the endogenous peptide tuftsin heptapeptide selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro) possesses an anxiolytic and psychostimulant effect, and represents a working element of a new peptide drug having completed the third phase of the clinical testing as a selective anxiolytic. The neurobiochemical spectrum of selank action combines mechanisms which are characteristics of antidepressants and psychostimulants: activation of the brain monoaminergic systems, dopamine synthesis and turnover, and modulation of the tyrosine hydroxylase activity. The aim of this study was to investigate the effect of selank in a new model of inherited (genetically-based) symptoms of depression in behavior of inbred WAG/Rij rats in comparison with its effect on situation-provoked symptoms of depression in behavior of BALB/c mice. Outbred Wistar rats constituted control group. Selank in high doses (1000-2000 microg/kg), after repeated injection counteracted symptoms of depression in behavior of WAG/Rij rats (increased immobilization in the forced swimming test and decreased sucrose intake or preference (anhedonia)). Selank in low doses (100 and 300 microg/kg) after single injection reduced the duration of immobility of BALB/c mice in the forced swimming test, but did not exert significant effect after repeated injection or after injection in high doses (600 and 900 microg/kg). Selank did not affect the level of general locomotor activity and anxiety in WAG/Rij rats, and did not exert substantial effect on the behavior of control Wistar rats. The results demonstrate the presence of antidepressant component in the spectrum of neuropsychotrophyc activity of selank and indicate the higher reliability of a new experimental model of depression (the WAG/Rij rats) as compared to the standard forced swimming test for the determination of antidepressant activity of a pharmacological drug.
John Juan
New member
This medical study shows Selank has applications in anti viral medicine with regards to the flu. Wish I had this last week.
[Antiviral activity of immunomodulator Selank in experimental influenza infection].
AuthorsErshov FI, et al. Show all Journal
Vopr Virusol. 2009 Sep-Oct;54(5):19-24. Article in Russian.
Affiliation
Abstract
The main objective of this study was to evaluate the antiviral properties of the glyproline Selank in both in vitro and in vivo against the influenza virus strain A/Aichi 2/68 (H3N2). The pronounced antiviral effect of the agent was detected in both systems. Selank added to the cell culture 24 hours before inoculation (a preventive use scheme) showed the highest efficiency, by completely suppressing viral reproduction. The in vivo studies also demonstrated that the highest survival of laboratory animals was observed when the agent was administered by the prevention scheme. The use of Selank in vivo induced the gene expression of interferon-alpha (IFN-alpha), without affecting that of interleukin (IL)-4, IL-10, or tumor necrosis factor-alpha (TNF-alpha). The findings suggest that the mechanism of the antiviral action of Selank may be due to its ability to modulate Th1/Th2/Treg cytokine equilibrium both directly and indirectly via the central nervous system. This is particularly promising if that the agent is synthesized on the basis of an endogenous peptide and that it has no negative effects is kept in mind.
PMID 19882898 [PubMed - indexed for MEDLINE]
[Antiviral activity of immunomodulator Selank in experimental influenza infection].
AuthorsErshov FI, et al. Show all Journal
Vopr Virusol. 2009 Sep-Oct;54(5):19-24. Article in Russian.
Affiliation
Abstract
The main objective of this study was to evaluate the antiviral properties of the glyproline Selank in both in vitro and in vivo against the influenza virus strain A/Aichi 2/68 (H3N2). The pronounced antiviral effect of the agent was detected in both systems. Selank added to the cell culture 24 hours before inoculation (a preventive use scheme) showed the highest efficiency, by completely suppressing viral reproduction. The in vivo studies also demonstrated that the highest survival of laboratory animals was observed when the agent was administered by the prevention scheme. The use of Selank in vivo induced the gene expression of interferon-alpha (IFN-alpha), without affecting that of interleukin (IL)-4, IL-10, or tumor necrosis factor-alpha (TNF-alpha). The findings suggest that the mechanism of the antiviral action of Selank may be due to its ability to modulate Th1/Th2/Treg cytokine equilibrium both directly and indirectly via the central nervous system. This is particularly promising if that the agent is synthesized on the basis of an endogenous peptide and that it has no negative effects is kept in mind.
PMID 19882898 [PubMed - indexed for MEDLINE]
John Juan
New member
Selank regulates inflammation invivo.
Expression of inflammation-related genes in mouse spleen under tuftsin analog Selank.
AuthorsKolomin T, et al. Show all Journal
Regul Pept. 2011 Oct 10;170(1-3):18-23. doi: 10.1016/j.regpep.2011.05.001. Epub 2011 May 24.
Affiliation
Abstract/B]
Previous studies have shown that synthetic tuftsin analogue Selank causes a transcriptomic response in the rat hippocampus and in spleen cells and may participate in the regulation of inflammatory processes in the body. In this work we studied the effect of Selank and two of its fragments on the expression of genes involved in processes of inflammation. We analyzed the expression of 84 genes involved in processes of inflammation (e.g., chemokines, cytokines, and its receptors) in mouse spleen 6 and 24 h after Selank single intraperitoneal injection (100 μg/kg) using real-time PCR method. We found significant changes in the expression of 34 genes involved in inflammation processes. The detailed analysis of quantitative data showed that the Bcl6 gene, which plays a main role in the formation and development of the immune system, exhibited significant changes in its expression levels in response to injection of each of the peptides. Also, we observed expression changes for Bcl6 target and corepressor genes under the influence of Selank and its fragments. Our results showed that Selank and its fragments caused a number of alterations in the expression of genes involved in inflammation. The data obtained confirmed the participation of Selank in the processes of regulation of inflammation in the body. The complex biological effect of Selank may be partially determined by the systematic effect of this peptide on genomic expression.
Expression of inflammation-related genes in mouse spleen under tuftsin analog Selank.
AuthorsKolomin T, et al. Show all Journal
Regul Pept. 2011 Oct 10;170(1-3):18-23. doi: 10.1016/j.regpep.2011.05.001. Epub 2011 May 24.
Affiliation
Abstract/B]
Previous studies have shown that synthetic tuftsin analogue Selank causes a transcriptomic response in the rat hippocampus and in spleen cells and may participate in the regulation of inflammatory processes in the body. In this work we studied the effect of Selank and two of its fragments on the expression of genes involved in processes of inflammation. We analyzed the expression of 84 genes involved in processes of inflammation (e.g., chemokines, cytokines, and its receptors) in mouse spleen 6 and 24 h after Selank single intraperitoneal injection (100 μg/kg) using real-time PCR method. We found significant changes in the expression of 34 genes involved in inflammation processes. The detailed analysis of quantitative data showed that the Bcl6 gene, which plays a main role in the formation and development of the immune system, exhibited significant changes in its expression levels in response to injection of each of the peptides. Also, we observed expression changes for Bcl6 target and corepressor genes under the influence of Selank and its fragments. Our results showed that Selank and its fragments caused a number of alterations in the expression of genes involved in inflammation. The data obtained confirmed the participation of Selank in the processes of regulation of inflammation in the body. The complex biological effect of Selank may be partially determined by the systematic effect of this peptide on genomic expression.
John Juan
New member
In clinical trials, Selank has shown to provide a sustained nootropic and anxiolytic effect, which is useful for the treatment of generalized anxiety disorder (GAD).[1] Selank has an advantage over traditional anxiety treatments, such as benzodiazepines, as it has no sedating or cognitive side effects and no associated addiction or withdrawal syndrome. Selank also has very low toxicity with an overdose proving harmless even up to 500 times the effective dose. When released, the drug will be used as a 0.15% aqueous solution which is applied to the nasal mucosa in drops. It is thought that this is the best method for absorbing peptide based drugs. The drug can be used to suppress feelings of fear and anxiety in people with anxiety disorders and to stimulate learning and memory in healthy people.
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