scholarly journals Antidepressant and Anxiolytic Effects and Subchronic Toxicity of the Aerial Parts of Psychotria ankasensis J.B.Hall (Rubiaceae) in Murine Models

2021 ◽  
Vol 2021 ◽  
pp. 1-18
Author(s):  
Francis Ackah Armah ◽  
Isaac Tabiri Henneh ◽  
Isaac Kingsley Amponsah ◽  
Robert Peter Biney ◽  
Fynn Malcolm ◽  
...  

Background. The present study aimed at validating the traditional use and toxicity profile of a methanolic extract of the aerial parts of Psychotria ankasensis in alleviating depression and anxiety disorders. Method. The antidepressant effect of methanolic extract of Psychotria ankasensis (PAE 30, 100, and 300 mg/kg, p.o.) was assessed in mice using the forced swim test (FST) and the tail suspension test (TST). The plant's anxiolytic potential was also evaluated in mice using the elevated plus-maze (EPM) and the open field tests (OFT). The subchronic toxicity was assessed via oral administration of PAE at doses of 100, 300, and 1000 mg/kg in rats for 28 days. Results. PAE 100 and 300 mg/kg showed antidepressant-like properties by significantly (at least p < 0.05 ) decreasing the frequency and duration of immobility in FST and TST. PAE (100 and 300 mg/kg) also showed a significant (at least p < 0.05 ) anxiolytic effect in both EPM and OFT. In the EPM test, Emax for PAE and diazepam were 92.52 ± 40.11% and 85.95 ± 45.92%, respectively, whereas Emax was approximately 100% for both test drugs in the OFT. Subchronic administration of PAE did not reveal any toxic effects with respect to organ weight index, haematological, serum biochemical, and histopathological parameters. Conclusions. Methanolic extract of P. ankasensis exhibited antidepressant-like and anxiolytic-like effects devoid of significant toxicity at the doses tested in murine models.

Author(s):  
Chiranjeevi Bonda ◽  
Sudhir Pawar ◽  
Jaisen Lokhande

Background: The aim of the study was to evaluate the antidepressant effect of opioid analgesic tramadol using forced swim test and tail suspension test models.Methods: The antidepressant effect was assessed by recording the immobility time in Forced swim test (FST) and Tail suspension test (TST). The mice were randomly divided into five groups. Mice belonging to group I was given normal saline (0.1ml/kg) which acted as control. Group II received imipramine (15mg/kg) considered as the standard drug tramadol was given in graded dose (10, 20 and 40 mg/kg) to mice of groups III, IV, V respectively. All drugs were administered intraperitoneally for seven successive days; test was done on 7th day.Results: Tramadol and Imipramine showed antidepressant activity when compared to control. There is dose dependent increase in antidepressant activity of tramadol. The antidepressant activity of imipramine was significantly (P<0.05) more than tramadol at dose 10 and 20 mg/kg but antidepressant activity with tramadol 40mg/kg was comparable to imipramine treated mice.Conclusions: The results of this study indicated the presence of antidepressant activity of tramadol at 40mg/kg.


Molecules ◽  
2020 ◽  
Vol 25 (6) ◽  
pp. 1299
Author(s):  
Fatma Tuğçe Gürağaç Dereli ◽  
Haroon Khan ◽  
Eduardo Sobarzo-Sánchez ◽  
Esra Küpeli Akkol

As a Turkish traditional medicinal plant, aerial parts of Lotus corniculatus L. subsp. corniculatus (Fabaceae) are used as a painkiller, antihemoroidal, diuretic and sedative. In this study, the antidepressant potential of the plant has been attempted to clarify. Extracts with water, n-Hexane, ethyl acetate, and methanol were prepared respectively from the aerial parts. Antidepressant activity of the extracts were researched by using three different in vivo test models namely a tail suspension test, antagonism of tetrabenazine-induced hypothermia, ptosis, and suppression of locomotor activity and forced swimming test on male BALB/c mice and in vitro monoamine oxidase (MAO)-A and B inhibition assays. The results were evaluated through comparing with control and reference groups, and then active compounds of the active extract have been determined. Bioassay-guided fractionation of active fraction led to the isolation of three compounds and structures of the compounds were elucidated by spectroscopic methods. The data of this study demonstrate that the MeOH extract of the aerial parts of the plant showed remarkable in vivo antidepressant effect and the isolated compounds medicarpin-3-O-glucoside, gossypetin-3-O-glucoside and naringenin-7-O-glucoside (prunin) from the active sub-fractions could be responsible for the activity. Further mechanistic and toxicity studies are planned to develop new antidepressant-acting drugs.


2015 ◽  
Vol 2015 ◽  
pp. 1-6 ◽  
Author(s):  
Gaurav Gupta ◽  
Tay Jia Jia ◽  
Lim Yee Woon ◽  
Dinesh Kumar Chellappan ◽  
Mayuren Candasamy ◽  
...  

The present study was designed to evaluate the acute and chronic antidepressant effect of genistein in combination with amitriptyline in mice. Animals were divided into six groups (n=6) for treatment with water, genistein, or amitriptyline, either alone or in combination for ten days. Animals were subjected to locomotor activity testing; tail suspension test (TST); and forced swim test (FST) and immobility time was recorded on day one and day ten. Acute treatment of all treatment groups did not significantly reduce the immobility time (p>0.05). Chronic treatment of combination of genistein (10 mg/kg) and amitriptyline (5 mg/kg and 10 mg/kg) significantly reduced the immobility time as compared to control group (p<0.001) and was comparable to amitriptyline alone (10 mg/kg). However, no changes in anti-immobility activity in combination of subeffective doses of genistein (5 mg/kg) and amitriptyline (5 mg/kg) were observed. Genistein at its standard dose (10 mg/kg) rendered synergistic effects in combination with subeffective dose of amitriptyline (5 mg/kg) and additive effects in combination with therapeutic dose of amitriptyline (10 mg/kg).


2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Farzaneh Naghibi ◽  
Somayeh Esmaeili ◽  
Noor Rain Abdullah ◽  
Mehdi Nateghpour ◽  
Mahdieh Taghvai ◽  
...  

Based on the collected ethnobotanical data from the Traditional Medicine and Materia Medica Research Center (TMRC), Iran,Myrtus communisL. (myrtle) was selected for the assessment ofin vitroandin vivoantimalarial and cytotoxic activities. Methanolic extract of myrtle was prepared from the aerial parts and assessed for antiplasmodial activity, using the parasite lactate dehydrogenase (pLDH) assay against chloroquine-resistant (K1) and chloroquine-sensitive (3D7) strains ofPlasmodium falciparum. The 4-day suppressive test was employed to determine the parasitemia suppression of the myrtle extract againstP. berghei  in vivo. The IC50values of myrtle extract were 35.44 µg/ml against K1 and 0.87 µg/ml against 3D7. Myrtle extract showed a significant suppression of parasitaemia (84.8 ± 1.1% at 10 mg/kg/day) in mice infected withP. bergheiafter 4 days of treatment. Cytotoxic activity was carried out against mammalian cell lines using methyl thiazol tetrazolium (MTT) assay. No cytotoxic effect on mammalian cell lines up to 100 µg/mL was shown. The results support the traditional use of myrtle in malaria. Phytochemical investigation and understanding the mechanism of action would be in our upcoming project.


2020 ◽  
Vol 8 (02) ◽  
pp. 46-50
Author(s):  
Chandrajeet Kumar Yadav ◽  
Kamal Poudel ◽  
Roshan Mehta ◽  
Amit Kumar Shrivastava

INTRODUCTION Depression is a global mental disorder that has high incidence, high recurrence, and high self-mutilation and suicide rates. Although the antidepressant drugs are available for the treatment, depression still continues to be a major medical problem. The present study was designed to study the anti-depressant activity of the leaves extract of Zanthoxylum armatum using forced swim test and tail suspension test (TST) on Swiss albino mice. MATERIAL AND METHODS The anti-depressant activity of the leaves of Zanthoxylum armatum was assessed using chronic unpredictable mild-stress (CUMS) induced depression in mice. The animals were treated with the methanolic extract of leaves of Zanthoxylum armatum orally at two doses of 100, 200 mg/kg body weight for eight days after (CUMS) induced depression in mice. RESULTS The data were analyzed by one-way ANOVA followed by tukey multiple comparison test. The leaves extract presented significant antidepressant activity in mice (p<0.05), CONCLUSION The results demonstrate that methanolic extract of leaves of Zanthoxylum armatum has got significant antidepressant activity.


2021 ◽  
Author(s):  
Anna Donen ◽  
Tzuri Lifschytz ◽  
Gilly Wolf ◽  
Hagar Ben-Ari ◽  
Amit Lotan ◽  
...  

Aim: Spirulina is a microalga that is widely used as a food supplement and is regarded as having performance enhancing and health promoting properties. We conducted a preliminary evaluation of the possible antidepressant, anti-anxiety, pro-socialization and cognition-enhancing effects of Spirulina in mouse models. Methods: Sixty male BalbC mice aged 3 weeks were administered phycocyanin-rich Spirulina extract (PRSE, 545 mg/kg), fluoxetine (20 mg/kg) or water orally for 5 weeks. During the last 2 weeks of the experiment a series of behavioral-cognitive tests was performed to evaluate motor activity, antidepressant and anti-anxiety effects, socialization and cognitive effects. Effects of PRSE and fluoxetine were compared to those of water. Results: There was a significant effect of PRSE in the activity domain, manifesting as an increase in velocity in the open field (p=0.0007 vs. water). Fluoxetine significantly enhanced immobility in the tail suspension test and the forced swim test reflecting the known antidepressant effect of this compound, but not PRSE. There were no significant effects of PRSE in tests of anxiety, socialization or cognition. Conclusions: The most striking observation in this study was that PRSE significantly enhanced activity in the open field test. Further studies are indicated to confirm and extend this finding and investigate possible mechanisms of action. The results of the current study do not support sporadic reports of possible antidepressant or cognition-enhancing effects of PRSE. Nevertheless, additional studies are indicated using depression models rather than naive mice, alternative mouse strains, using additional cognitive tests, and administering higher PRSE doses.


Author(s):  
Mansi J. Shah ◽  
Geetha M. ◽  
Rahul H. D. ◽  
Shashikala G. H.

Background: Ondansetron and granisetron are selective 5-HT receptor antagonists used as antiemetics. The present study as aimed at comparing the antidepressant activity of ondansetron and granisetron in animal experimental models.Methods: The study was done after obtaining approval from the institutional animal ethical committee of JJM Medical college, Davangere and CPCSEA. A total of 24 mice of either sex and of weight between 20-40g were included in the study. The antidepressant activity of ondansetron and granisetron was evaluated in mice using forced swim test model (FST) and tail suspension test model (TST). In both the experimental models animals were divided into 4 groups and received the following drugs- Group 1 (control) - normal saline 10mg/kg i.p, Group 2 (standard)-fluoxetine 10mg/kg i.p, Group 3(test drug 1), ondansetron 2mg/kg i.p, Group 4 (test drug 2)- granisetron 0.5mg/kg i.p. The duration of immobility was noted and compared amongst the 4 groups in both the models 60 min after drug administration. The observations were analysed using ANOVA (one way) and post hoc Tukey’s test.Results: The test drugs showed significant reduction in duration of immobility in both the models. In FST and TST models, granisetron (0.5mg/kg i.p) showed a significant reduction in immobility period of 10.33 sec and 67 secs respectively when compared to ondansetron (2mg/kg i.p) and the standard drug fluoxetine (10mg/kg i.p).Conclusions: The results of study suggest that granisetron may be useful as a potential candidate for treatment of depression. Hence further animal studies with different model for depression and clinical studies should be conducted in order to choose the better drug for treatment PONV which is often associated with depression.


2021 ◽  
Vol 12 ◽  
Author(s):  
Anna Donen ◽  
Tzuri Lifschytz ◽  
Gilly Wolf ◽  
Hagar Ben- Ari ◽  
Amit Lotan ◽  
...  

Aim: Spirulina is a microalga that is widely used as a food supplement and is regarded as having performance enhancing and health promoting properties. We conducted a preliminary evaluation of the possible antidepressant, anti-anxiety, pro-socialization and cognition-enhancing effects of Spirulina in mouse models Methods: Sixty male BalbC mice aged 3 weeks were administered phycocyanin-rich Spirulina extract [PRSE, 545 mg/kg], fluoxetine [20 mg/kg] or water orally for 5 weeks. During the last 2 weeks of the experiment a series of behavioral-cognitive tests was performed to evaluate motor activity, antidepressant and anti-anxiety effects, socialization and cognitive effects. Effects of PRSE and fluoxetine were compared to those of water. Results: There was a significant effect of PRSE in the activity domain, manifesting as an increase in velocity in the open field [p=0.0007 vs. water]. Fluoxetine significantly enhanced immobility in the tail suspension test and the forced swim test reflecting the known antidepressant effect of this compound, but not PRSE. There were no significant effects of PRSE in tests of anxiety, socialization or cognition. Conclusions: The most striking observation in this study was that PRSE significantly enhanced activity in the open field test. Further studies are indicated to confirm and extend this finding and investigate possible mechanisms of action. The results of the current study do not support sporadic reports of possible antidepressant or cognition-enhancing effects of PRSE. Nevertheless, additional studies are indicated using depression models rather than naïve mice, alternative mouse strains, using additional cognitive tests, and administering higher PRSE doses.


2020 ◽  
Vol 10 (23) ◽  
pp. 8420
Author(s):  
Amal Amaghnouje ◽  
Hamza Mechchate ◽  
Imane Es-safi ◽  
Amal A. Alotaibi ◽  
Omar M. Noman ◽  
...  

Marjoram (Origanum majorana L.) infusion has been used as folk medicine against depression and anxiety. However, no studies have been carried out yet to prove those activities scientifically. In this study, the anxiolytic, antidepressant-like effects, and memory impact of the hydro-ethanolic extracts of marjoram were evaluated in mice. The hydro-ethanolic extracts (250 and 500 mg/kg) were evaluated for their central nervous effect using six different behavioral tests such as light–dark box (LDB) and open field (OF) for anxiety, forced swim test (FST), and tail suspension test (TST) for depression, and object recognition test (ORT), Morris water maze (MWM) for the impact on memory. The experiments were realized on days 1, 7, 14, and 21 of treatments and compared with bromazepam for anxiety (1 mg/kg) and paroxetine for depression (11.5 mg/kg). The phytochemical screening was performed by HPLC, and the acute and sub-acute toxicities were performed following OCED guidelines (N°423 and 407) with biochemical parameters evaluation and histopathological analysis. Oral administration of marjoram hydro-ethanolic extract induced significant anxiolytic and antidepressant-like effects without memory impairment, increasing the exploration and time spent in the light area in the LDB test in a similar way to that of bromazepam. In the FST and TST, the extract was as effective as paroxetine (11.5 mg/kg, p.o.) in reducing immobility. The phytochemical screening showed the presence of ferulic acid, naringin, hydroxytyrosol, geraniol, and quercetin. This study approves the traditional use of this plant and encourages further investigation on its bioactive compounds.


2021 ◽  
Vol 12 (2) ◽  
pp. 1300-1305
Author(s):  
Chandran Satheesh kumar ◽  
Srinivasagam Raja Sankar ◽  
Kaliyaperumal Prabu

Parkinson's disease (PD) is a common neurodegenerative movement disease affecting a large number of people worldwide. In animals, the intracranial or systemical application of the neurotoxin 1-methyl-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP) can result in severe injury to the nigrostriatal dopaminergic system. Hypericum perforatum  is a plant generally used as an antidepressant that also has anti-inflammatory and antioxidant properties. Hypericum perforatum has been used to lessen the mild to moderate symptoms of depression. The present study was done to find the effect of Hypericum perforatum methanolic extract pretreatment and post-treatment on behavioral studies in MPTP induced Parkinson’s disease model. The behavioral assessments were performed with a forced swim test, pole test, tail suspension test, and catalepsy test. Hypericum perforatum extract ameliorated depressive-like behavior better in post-treatment as compared with pretreatment group in MPTP model of Parkinson's disease. It can be said that Hypericum perforatum methanolic extract might be a therapeutic agent for the treatment of PD, but further clinical studies are required.


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