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Selank...for stress reduction

[Effects of the new peptide anxiolytic drug selank on the cardiovascular system functioning and respiration in cats].

AuthorsGan'shina TS, et al. Show all Journal
Eksp Klin Farmakol. 2005 Jul-Aug;68(4):33-5. Article in Russian.

Affiliation
Abstract
The effects of the new heptapeptide anxiolytic drug selank (300 mg/kg, i.v.) on the arterial pressure (AP), cerebral blood flow, heart rhythm, respiration, and the AP depression induced by acetylcholine injections was recorded in narcotized male cats. Selank produced a 32 +/- 4.3% decrease in the AP for the first 1-3 min after injection. The drug also induced a 24 +/- 2.8% increase in the cerebral blood flow for the first 5 - 10 min upon injection and then the blood flow was gradually restored on the initial level. The heart rate and the respiratory rate were not affected by the drug injections. Nor did selank influence the AP depression in response to the acetylcholine introduction.

PMID 16193654 [PubMed - indexed for MEDLINE]
 
It was posted on another forum that Selank is helping remove withdrawal symptoms from a chronic pain suffer who is prescribed opiates. That's very interesting as anyone who has ever withdrawn from opiates knows it's pure hell!!!
 
I have added 1 vial of selank to my shopping cart so I can try it out. I will start at 100mcg to access my tolerance and move up to 250mcg and above and see how I am :)
 
[Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia].

AuthorsZozulia AA, et al. Show all Journal
Zh Nevrol Psikhiatr Im S S Korsakova. 2008;108(4):38-48. Article in Russian.

Affiliation
Abstract
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.
 
The fact that trials are being held to test the antiviral capability of Selank to fight off influenza is very intriguing as the flu going around now is down right nasty!!!
 
Selank-induced normalizing effects on the integrative brain activity and biogenic amine level disorders due to antenatal hypoxia.

AuthorsSemenova TP, et al. Show all Journal
Ross Fiziol Zh Im I M Sechenova. 2006 Nov;92(11):1332-8. Article in Russian.

Affiliation
Abstract
The effects of Selank synthetic analog of Tuftsin, representing the heptapeptide forming Thr-Lys-Pro-Arg-Pro-Gly-Pro, on behavior and serotonin/noradrenalin concentrations in brain were investigated in adult rats exposed to hypoxia during 14-16 days of gestation. It was revealed that injection of Selank (300 mkg/kg, i/p) increased 2--3-fold (p < 0.01) the sensory attention, facilitated 1.5-fold the learning capacity (p < 0.01), normalized exploratory activity in the open field and hole board, and recovered the balance of serotonergic and noradrenergic brain system activity. The data obtained demonstrate the possibility of Selank to compensate for long-lasting negative effects of antenatal hypoxia on integrative brain activity and brain monoamine level.

PMID 17385425 [PubMed - indexed for MEDLINE]
 
SELANK

The work presents results of study of role of heptapeptide Selank--an anxiolytic from group of biologically active peptides--in compensation of disturbed psychic and homeostatic functions in monkeys. New data have been obtained which indicate that an intranasal administration of Selank produces long-term changes of the monkeys' behavior disturbed during neurosis: elimination of fear and aggression and an increase of orientational-explorative activity as well as facilitation of handling reactions and communicational relations. It has been established that on the background of the Selank there occurs a long compensation of disturbed psychic functions (processes of memory) and of homeostatic parameters. It has been shown that unlike the earlier studied neurohormones (thyroliberin and ACTH4-10), the antistressor Selank effects do not depend on the type of neurotic disturbances and have long-term compensatory character. Comparison of the data obtained on monkeys with results of similar studies on the more low-organized mammals (rodents) allow suggesting that the new peptide preparation Selank is a promising agent for correction of various psychoemotional disturbances (alarm- and depression-like disorders).
 
The inhibitory effect of Selank on enkephalin-degrading enzymes as a possible mechanism of its anxiolytic activity.

Zozulya AA1, Kost NV, Yu Sokolov O, Gabaeva MV, Grivennikov IA, Andreeva LN, Zolotarev YA, Ivanov SV, Andryushchenko AV, Myasoedov NF, Smulevich AB.



Abstract

Examination of patients with various forms of anxiety and phobic disorders (according to DSM-4 criteria) demonstrated a considerable shortening of enkephalin half-life and reduced total enkephalinase activity in the blood during generalized anxiety, but not during panic disorders and agoraphobia. This was probably related to low blood concentration of endogenous inhibitors of enkephalin-degrading enzymes in patients with generalized anxiety disorders. Heptapeptide Selank (Thr-Lys-Pro-Arg-Pro-Gly-Pro), which attenuates behavioral anxiety reactions and does not cause side effects typical of most anxiolytics, dose-dependently inhibited enzymatic hydrolysis of plasma enkephalin (IC50 15 microM). Selank was more potent than peptidase inhibitors bacitracin and puromycin in inhibiting enkephalinases. These results suggest that high efficiency of Selank in the therapy of anxiety and phobic disorders, including generalized anxiety, is due to its ability to inhibit enkephalin hydrolysis.


PMID: 11550013 [PubMed - indexed for MEDLINE]
 
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