The effect of different partitions of seaweed Sargassum plagyophylum on depression behavior in mice model of despair

Author(s):  
Azadeh Mesripour ◽  
Neda Rabian ◽  
Afsaneh Yegdaneh

Abstract Background Seaweeds are a famous traditional food resource in some countries containing different types of secondary metabolites. These marine organisms have shown different biological activities. The aim of this study was to investigate the effects of hexane and methanol extracts of Sargassum plagyophylum on depression. Methods Sargassum plagyophylum was collected from Persian Gulf. The plant was extracted by maceration with methanol-ethyl acetate solvent. The extract was evaporated and partitioned by hexane and methanol solvents. The two partitions were administered i.p. to male mice either a single dose or for 7 days. Depression was evaluated by the forced swimming test (FST) which higher immobility time indicates depressive-like behavior. Results The immobility time during FST decreased significantly by all the doses of the hexane partitions (notably 40 mg/kg; 10 s ± 2 vs. 114 s ± 12 control group). However, only the lowest dose (20 mg/kg) of the methanol partition reduced immobility time during FST (23 s ± 8, p<0.001). Following the long term administration both of the partitions reduced the immobility time in FST (hexane 27 s ± 11, methanol 70 s ± 14, p<0.05 vs. control 140 s ± 14). Conclusion The hexane partition showed antidepressant effects not only by long-term administration but also by the single dose during FST. The 7 days therapy with methanol partition also induced antidepressant behavior, but only the lowest single dose reduced immobility in FST. The methanol partitions possibly have certain substance that interfered with behavior in the FST. Therefore, S. plagyophylum should be considered for further antidepressant studies.

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Xian-yun Liu ◽  
Tao Xu ◽  
Wan-shu Li ◽  
Jun Luo ◽  
Pei-wu Geng ◽  
...  

The purpose of this study was to determine the effect of apigenin on the pharmacokinetics of imatinib and N-desmethyl imatinib in rats. Healthy male SD rats were randomly divided into four groups: A group (the control group), B group (the long-term administration of 165 mg/kg apigenin for 15 days), C group (a single dose of 165 mg/kg apigenin), and D group (a single dose of 252 mg/kg apigenin). The serum concentrations of imatinib and N-desmethyl imatinib were measured by HPLC, and pharmacokinetic parameters were calculated using DAS 3.0 software. The parameters ofAUC(0-t),AUC(0−∞),Tmax,Vz/F, andCLz/Ffor imatinib in group B were different from those in group A (P<0.05). Besides,MRT(0−t)andMRT(0−∞)in groups C and D differed distinctly from those in group A as well. The parameters ofAUC(0-t)andCmaxfor N-desmethyl imatinib in group C were significantly lower than those in group A (P<0.05); however, compared with groups B and D, the magnitude of effect was modest. Those results indicated that apigenin in the short-term study inhibited the metabolism of imatinib and its metabolite N-desmethyl imatinib, while in the long-term study the metabolism could be accelerated.


Author(s):  
Azadeh Mesripour ◽  
Shahrzad Shahnooshi ◽  
Valiollah Hajhashemi

AbstractBackgroundInterferon-α (IFNα) therapy causes psychiatric side effects, including depression that may result in poor compliance of therapy. It is important to find alternative therapies for the prevention of IFNα induced depression. Non-steroidal anti-inflammatory drugs (NSAIDs) have been useful in depressive disorder. Therefore the effects of celecoxib, ibuprofen, and indomethacin were evaluated following IFNα-induced depression in mice.MethodsMale albino mice weighing 26 ± 2 g were used. Depression was induced by IFNα (16 × 105 IU/kg, SC) for six consecutive days. Animals were first subject to the locomotor test, then the splash test and finally the forced swimming test (FST) on the 7th day. The NSAIDs were administered (IP) either one single dose before the test, or simultaneously with IFNα.Resultslocomotor activity was only impaired by ibuprofen high dose (75 mg/kg), thus it was not further evaluated. Following IFNα therapy depression-like behaviors were observed; significant changes during the splash test (grooming time 24 ± 7 sec vs. control 63 ± 7 sec), the FST (immobility time 166  ± 15 sec vs. control 128  ± 6 sec), and sucrose preference reduced to 64 ± 0.8%. The NSAIDs noticeably reduced the immobility time in FST, while grooming time was increased. Celecoxib and indomethacin single doses were effective while ibuprofen showed better antidepressant effects when it was administered along with IFNα.ConclusionsThe NSAIDs were able to prevent IFNα induced depression in mice. NSAIDs administration with IFNα does not interfere with clinical benefit effects of IFNα and they could also be useful to prevent IFNα psychiatric side effects, thus further clinical trials are suggested.


2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Ming Zhong ◽  
Xiaoting Tian ◽  
Shuoji Chen ◽  
Mingcang Chen ◽  
Ziqiong Guo ◽  
...  

Abstract Background Modern pharmacological studies have demonstrated that Baihe–Zhimu decoction (BZD) has antidepressant effects. However, the complex composition and lack of clear evaluation standards for BZD make it less likely to be understood and accepted than evidence-based active natural compounds. Methods In this study, an effective method for the identification of antidepressant components was demonstrated and applied to BZD. The first step was to evaluate the efficacy of BZD by the forced swimming test (FST) and the tail suspension test (TST), followed by successive quantitative analyses of the absorbed constituents at different stages, such as before hepatic disposition, liver distribution, after hepatic disposition and brain distribution after the oral administration of BZD. Finally, the compounds detected in the brain were confirmed by activity testing. Results Our investigation observed that timosaponin BII and timosaponin BIII were accurately determined in the brain after oral administration of BZD, and they were further confirmed to reduce the immobility time in the FST and TST. As described above, timosaponin BII and timosaponin BIII were used to scientifically and reasonably explain the effective chemical basis of the effect of BZD on depression. Conclusions This research affords an effective method to discover lead molecules for antidepressants from traditional Chinese medicine.


2019 ◽  
Vol 9 (1) ◽  
pp. 244-247 ◽  
Author(s):  
Sucheta Gautam ◽  
Neetu Sachan ◽  
Alankar Shrivastav ◽  
Dilipkumar Pal

Abstract Objective: Abies webbiana and Berberis aristata is an herbal plant that has several therapeutic effects. It also heals depression, grief, nervous stress and tension. In the present study we evaluated anti-depressant effect of ethanolic extract from Abies webbiana and Berberis aristata by using Forced Swimming Test (FST) and Tail Suspension Test (TST). Methods: Two doses of ethanolic extract of Abies webbiana and berberis aristata (200 mg/kg and 400 mg/kg) was given orally. Immobility time were measured after 30 min after the dosing and compared with control group and Flouxetine (25mg/kg) as a standard group. Results: The ethanolic extract of BA and AW (400 mg/kg) was found to be effective and it exhibited activity similar to that of the conventional drug Flouxetine (25mg/kg) (p<0.001) whereas 200 mg/kg dose showed higher activity with significantly increased swimming time and suspension time and decreased immobility time than 400 mg/kg of ethanolic extracts and Flouxetine (25mg/kg). Conclusion: These results proposed 400 mg/kg of ethanolic extract was showed higher anti-depressant activity as compared to control which is similar to the standard.


2014 ◽  
Vol 28 (S1) ◽  
Author(s):  
Hwang‐Yong Choi ◽  
Bou‐Hee Kang ◽  
Kyoung‐Soo HA ◽  
Mee Sook Lee ◽  
Young‐Cheul Kim ◽  
...  

Author(s):  
Shan-Shan Zhang ◽  
Wei-Hua Liu ◽  
Zhi-Wen He ◽  
Qiu-Wan Tan ◽  
Li-Ping Guan

Background: Coumarin and chalcone are important secondary plant metabolites that exhibit a range of biological activities. Accordingly, the synthetic derivatives and analogs of these molecules have attracted attention as potential pharmacological agents Objective: This study aims to study new antidepressants with high biological activity and low side effects, and to provide a basis for the treatment of epilepsy and depression. Method: In this study, a series of chalcone derivatives containing a coumarin moiety (2a–2s) was designed, synthesized, and evaluated using classic antidepressant and anticonvulsant mouse models. Results: Forced swimming test results revealed that all but one of the compounds tested significantly decrease immobility time at a dose of 10 mg/kg and exhibit some antidepressant activity. Furthermore, compounds 2a, 2c, 2h, and 2k exhibit relatively high antidepressant effects in a dose-dependent manner from 10 to 30 mg/kg. Maximal electroshock seizure tests showed that compounds 2a, 2b, 2c, 2h, 2l, 2r, and 2s exhibit anticonvulsant activity at a dose of 30 mg/kg. Conclusion: Accordingly, compounds 2a, 2c, and 2h show promise as antidepressant adjunct therapy agents for treating depression in patients with epilepsy. Chromatographic neurochemical analysis of the mouse brain tissue revealed that the antidepressant effects of the compounds may be mediated by an increase in serotonin level.


2018 ◽  
Vol 50 (2) ◽  
pp. 654-667 ◽  
Author(s):  
Juan Kong ◽  
Li Han ◽  
Han Su ◽  
Yihan Hu ◽  
Xueshi Huang ◽  
...  

Background/Aims: Nephropathy related with renin can be alleviated with ACE-inhibitors or AT1R blockers, whereas they might be ineffective after long-term administration because of a feedback production of enhanced renin. Therefore, it is urgent to develop a new category of anti-nephropathy medicine directly targeting renin. Riligustilide (C20), originally isolated from the Chinese herb Ligusticumporteri, a rhizome, was confirmed effective against many diseases. Methods: The therapeutic effect of C20 on renal injury and its underlying mechanism were investigated in three different nephrotic models, which were spontaneously hypertension rats (SHR) model, diabetic nephropathy in BTBR ob/ob mice model and 5/6-nephrectomized (5/6NX) rats model. Results: The intensity of kidney fibrosis was extensively decreased in the C20-treated rats compared to the vehicle animals. C20 significantly alleviated renal injury much more in 5/6 NX rats than in vehicle group. The rats in 5/6 NX without administrated C20 developed albuminuria earlier with more severe symptoms. Additionally, our findings showed that C20 down-regulated the renin expression and relocation of CREB-CBP complex in vivo and in vitro. Conclusion: C20 plays importantly reno-protective roles most likely through the relocation of CREB-CBP complex.


2014 ◽  
Vol 17 (3) ◽  
pp. 527-529 ◽  
Author(s):  
W. Markiewicz ◽  
A. Jasiecka ◽  
D. Barski ◽  
J. Janiuk ◽  
A. Bossowska ◽  
...  

Abstract In the present study influence of doxazosin on the porcine urinary bladder contractility has been examined. Immature pigs were treated for 30 days with: a) doxazosin (n = 5) per os at a dose of 0.1 mg/kg b.w. or b) placebo (n = 5; control group). Thereafter, animals were sacrificed and urinary bladder strips from the trigone were suspended in organ baths. The tension of the smooth musce was measured before and after exposition to acetylocholine (ACh; 10-5 - 10-3 M), norepinephrine (NE; 10-9 - 10-7 M) and 5-hydroxytryptamine (5-HT; 10-7 - 10-5 M). Both the ACh and 5-HT at the highest doses significantly increased the contractility in each group, but this response was weaker in doxazosin-treated animals. NE caused relaxation in both groups, but the effect was weaker in doxazosine-treated group. The results of our study have shown that long-term administration of doxazosin caused a desensitization of the detrusor smooth muscle for in vitro applied mediators of the autonomic nervous systems.


1987 ◽  
Vol 44 (1) ◽  
pp. 21-27 ◽  
Author(s):  
L. D. Sandles ◽  
C. J. Peel

ABSTRACTThe effects of long-term administration of exogenous growth hormone (GH) on growth and carcass composition of pasture-fed, pre-pubertal dairy heifers were examined. Purified bovine GH (specific activity, 0·78 i.u. per mg) was administered daily for 21 weeks (0·6 mg GH per kg M0·75) to one member of each of 12 sets of twins. GH administration resulted in a significantly higher growth rate (0·58 kg/ day) compared with the control group (0·54 kg/day) and produced a heavier carcass (75·6 kg v. 69·5 kg). However, this production gain did not persist when GH treatment ceased. Plasma metabolite concentrations and carcass composition were not affected by GH treatment. GH tended to increase slightly the voluntary intake of freshly cut herbage dry matter (3·5 kg/day v. 3·7 kg/day; P < 0·05), but had no effect on food conversion efficiency. Serum somatomedin levels were not significantly increased by GH during week 13 of treatment. This experiment indicates that pre-pubertal heifers chronically treated with GH will increase their food intake to sustain an increased rate of growth. However, the production gains made over the treatment period were transient and within 5 weeks of the cessation of GH treatment there was no difference in the live weight of the two groups.


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