Hydroalcohol extract and fractions ofStachys lavandulifolia vahl: effects on spontaneous motor activity and elevated plus-maze behaviour

2005 ◽  
Vol 19 (10) ◽  
pp. 854-858 ◽  
Author(s):  
M. Rabbani ◽  
S. E. Sajjadi ◽  
A. Jalali
2000 ◽  
Vol 72 (1-2) ◽  
pp. 61-67 ◽  
Author(s):  
L Guaraldo ◽  
D.A Chagas ◽  
A.C Konno ◽  
G.P Korn ◽  
T Pfiffer ◽  
...  

2009 ◽  
Vol 4 (4) ◽  
pp. 1934578X0900400 ◽  
Author(s):  
Francesco Maione ◽  
Maria Camela Bonito ◽  
Mariantonella Colucci ◽  
Virginia Cozzolino ◽  
Angela Bisio ◽  
...  

The potential anxiolytic and anti-depressive activity of CMP1 was studied in the elevated plus-maze test and in the forced swimming test. Furthermore, CMP1 sedative activity was evaluated in pentobarbital treated animals; the effect of CMP1 on spontaneous motor activity (total locomotion) was also evaluated. Our data show that CMP1, at doses that did not affect locomotion, was able to induce anxiolytic and sedative, but not anti-depressive effects. In conclusion, our results represent first evidence for an anxiolytic activity of this diterpenoid from Salvia cinnabarina.


Author(s):  
Sakina S. Saadawi ◽  
Khairi A. Alennabi ◽  
Sumaya Baayo ◽  
Amera Fares ◽  
Najwa Alosta ◽  
...  

Aims: This article aimed to study the effect of different caffeine concentrations on behaviour and motor activity of mice. Place and Duration of Study: This study took place in Faculty of Pharmacy, University of Tripoli, and was conducted between 2017 to 2018. Methodology: The experiment was carried out using 24 male mice (25-30 gm). Plus maze was used for screening antianxiety effect of caffeine. While swimming maze was used to test the antidepressant effect. Descriptive statistics was performed using SPSS (version 22), followed by one sample Kolmogorov-Simirnov test. One-Way ANOVA was applied to compare between groups and Post Hoc test (LSD).  Results: At a dose of 100 mg/kg, caffeine produce significant decrease in the duration of immobility using forced swimming maze; while the lower (25 mg/kg) and the higher (200 mg/kg) doses did not produce any changes compared to the control. In plus maze, Caffeine decreases the anxiety measure at the dose used of 100 mg/kg; but did not change the anxiety measure when lower (25 mg/kg) or higher (200 mg/kg) doses used compared to the control. The spontaneous motor activity was decreased significantly after administration of the higher dose of 200 mg/kg; the lower dose (25 mg/kg) showed insignificant increase, while the dose of 100 mg/kg produce insignificant decrease in the spontaneous motor activity. Conclusion: Caffeine has dose dependent effect, in a dose 100 mg/kg it produce anxiolytic and antidepressant like action, while lower (25 mg/kg) and higher (200 mg/kg) doses did not show any changes. Caffeine also produce dose dependent decrease in the spontaneous motor activity, this indicate that caffeine produce CNS depression with higher doses.


2017 ◽  
Vol 15 (3) ◽  
pp. 38-47
Author(s):  
Andrei A. Lebedev ◽  
Anna G. Pshenichnaya ◽  
Natalia D. Yakushina ◽  
Eugenii R. Bychkov ◽  
Petr D. Shabanov

Aim. Intraspecific behavior, emotional and explorative activity were investigated after intranasal administration of astressin, a non-selective antagonist of CRF receptors, in the male rats reared in social isolation from 21 to 93 days. Results. In the “resident-intruder” test there was an increased level of aggression and communications in isolated rats compared to grouped animals. After intranasal administration of astressin (20 μg in 20 μl), rats grown in isolation demonstrated an increase in aggression and decreased in communicability compared to intact animals reared in isolation. In the “open field” test a level of motor activity was increased in rats grown in isolation compared to grouped animals. The anxiety-phobic state, as well as behavior in an elevated plus maze, revealed enhance of anxiety and fear in rats reared in isolation. After astressin administration to isolated animals the levels of anxiety and fear significantly decreased. Conclusion. The results of the work revealed that the antagonist of the CRF receptor astressin disinhibited aggression, removing anxious and phobic state in male rats reared in social isolation. The results prove the necessity of taking into account CRF mechanisms in the formation of the social isolation syndrome and the possibility of using CRF receptor antagonists to control the central mechanisms of stress and dependence in ontogenesis.


Author(s):  
Suhera M. Aburawi ◽  
Sumaya A. Baayo

Depression is a major cause of morbidity worldwide. Fluoxetine is a selective serotonin reuptake inhibitor, and is effective antidepressant medication. Selenium is essential for good health but required only in small amounts.Aim of the study is to investigate the effects of fluxetine alone and in presence of selenium on anxiety, spontaneous motor activity and antidepressant behavior. Also, the study aims to investigate the effects of selenium on spontaneous motor activity, anxiety measure, and antidepressant behavior, using photoelectric cells, elevated plus maze and forced swimming maze.Mice were divided into 5 group (n=6). Group 1 (control), administered 1% tween 80 (5 ml/kg); group 2 administered selenium (200 µg/kg); group 3 received diazepam as a positive control (1 mg/kg); group 4 received fluoxetine (20 mg/kg); while group 5 received combined treatment of fluoxetine and selenium. All drugs injected sub acutely (three doses), mice were intraperitoneally administered at 24, 5, and 1.0 hrs before scoring. All drugs administered as suspension in 1% Tween 80 (T80). It was injected in volume 5ml/kg. Plus maze, photoelectric cells and forced swimming maze models were used.Fluoxetine has no effect on anxiety or locomotor activity; while selenium produced anxiolytic effect without changes on locomotor activity. Fluoxetine has antidepressant activity without any effect on duration of climbing. Selenium induced antidepressant effect with climbing action. Fluoxetine abolish the anxiolytic effect of selenium when administered together, but the combined treatment decreases the locomotor activity. Fluoxetine administration with selenium counteract the antidepressant effect of each other and climbing effect of selenium. Finally, selenium improves anxiety and depression behavior in albino mice, and might be used as an alternative therapy instead of fluoxetine (which treat antidepression only); but it must not be taken in combination with it.


1997 ◽  
Vol 30 (2) ◽  
pp. 241-244 ◽  
Author(s):  
M.R.P. Silva ◽  
M.M. Bernardi ◽  
A.G. Nasello ◽  
L.F. Felicio

2014 ◽  
Vol 12 (2) ◽  
pp. 65-70
Author(s):  
Natalia Sergeevna Bakunina ◽  
Andrei Andreevich Lebedev ◽  
Sergei Georgievich Tsikunov ◽  
Vagif Sultanovich Soultanov ◽  
Petr Dmitrievich Shabanov

The purpose of investigation was to assess protective action of polyprenols (2 and 10 mg/kg) in a rat model of posttraumatic stress disorder (PTSD). PTSD was reproduced in situation of unavoidable vital stress in rats by replacing them into a cell with hungry piton. For the five first minutes the piton was separated from the rats with transparent wall to get acquainted each other with a situation. Then, the wall was elevated, and piton seized a rat, asphyxied it when other rats (22) observed at the situation. The majority of rats were collected in the corner dying away from the beast. The other rats behaved themselves differently. Some of them attacked the piton, bited it, but the majority raced chaotically on the cell with piton. The exposure of rats with piton was 20 minutes. For that time it seized and asphyxied 1 or 2 rats. Polyprenols (from 8 till 18 isoprene units) were injected i. p. in doses of 2 or 10 mg/kg in oil solution for 7 days beginning with 1st day of the experiment (the first injection was 1 h after psychogenic exposure). The behavioral reactions were assessed in open field, elevated plus maze, in Porsolt’s test and in one trial passive avoidance response. The effects of polyprenols of 2 and 10 mg/kg were different. Polyprenols 2 mg/kg did not change horizontal and vertical motor activity in rats, moderately (in 1.5-fold) decreasing explorative activity and increasing grooming in open field. Emotional reactions were not changed. In the elevated plus maze, polyprenols 2 mg/kg possessed mild anxiolytic activity performed in 2.5-fold elevation of hangings number. In Porsolt’s test on depression, polyprenols 2 mg/kg moderately increased time of active swimming and sharply decreased time of immobilization (up to zero). That indicated on antidepressant properties of this dose (2 mg/kg) of polyprenols. In passive avoidance test, psychogenic stress facilitated formation and storage of habit (only 10 % of rats entered the dark chamber in 24 h after formation of the habit compared with 60 % in naïve rats). Polyprenols 10 mg/kg moderately activated explorative behavior without any effect on motor activity. In the elevated plus maze, the effects of polyprenols 2 and 10 mg/kg were similar in general. In Porsolt’s test, polyprenols 10 mg/kg did not perform a significant antidepressant effect. At last, in passive avoidance test, 30 % of rats have not learned after psychogenic stress, and the learned rats reproduced the passive avoidance response with phenomenon of hypermnesia, as in control group. So, polyprenols 2 and 10 mg/kg possess anxiolytic and antidepressant activity in a rat PTSD model. Polyprenols 2 mg/kg are more effective than polyprenols 10 mg/kg.


Planta Medica ◽  
2010 ◽  
Vol 76 (12) ◽  
Author(s):  
C Sampath ◽  
M Holbik ◽  
L Krenn ◽  
V Butterweck

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