scholarly journals CNS Depressant and Analgesic Activities of Thysanolaena maxima Roxb. Available in Bangladesh

2021 ◽  
Vol 20 (2) ◽  
pp. 227-233
Author(s):  
Nazia Hoque ◽  
Nusrat Fatemee ◽  
Md Junayet Hossain ◽  
Meena Afroze Shanta ◽  
Muhammad Asaduzzaman

In Bangladesh, numerous tribal people of Chittagong Hill Tracts have been using different parts of Thysanolaena maxima Roxb. for many years. The present study was designed to investigate CNS depressant and analgesic activities of methanol extract of the aerial parts of the plant in mice models. CNS depressant activity of the crude extract (200 and 400 mg/kg) was evaluated using open field, hole cross and thiopental-induced sleeping time tests using diazepam as the standard. Analgesic activity was determined using acetic acid-induced writhing and hot plate tests using diclofenac sodium as the standard. The extract showed dose dependent suppression of locomotion in open field and hole cross tests and exerted sedative action in thiopental induced sleeping time. In the open field and the hole-cross tests, maximum CNS depressant activity was observed at 90 min after administration of extract and the standard drug. The extract significantly induced the onset of sleep and prolonged the sleeping time in thiopental induced sleeping test compared to the control group. The extract produced significant (p < 0.05) analgesic activity by inhibiting writhing by 41.89% and 60.81%, at doses of 200 and 400 mg/kg body weight, respectively, which was comparable to the inhibition of diclofenac sodium (73.64%). Additionally, in hot plate test, the extract exhibited a significant (p < 0.05) increase in pain threshold in a dose dependent manner. The findings of the study are encouraging and demands further investigation of other bioactivities with isolation of pure compounds. Dhaka Univ. J. Pharm. Sci. 20(2): 227-233, 2021 (December)

2018 ◽  
Vol 21 (2) ◽  
pp. 80-86 ◽  
Author(s):  
Shanta Islam ◽  
Md Shafiullah Shajib ◽  
Bidyut Kanti Datta ◽  
Mohammad A Rashid

Albizia lebbeck (Linn.) Benth. is a deciduous tree which is planted as ornamental and avenue tree almost all over Bangladesh. Leaves of the plant are used in ethnomedicine for the treatment of convulsion and CNS related disorder. This study was aimed to evaluate the neuropharmacological effects of the methanol extract of A. lebbeck leaves in Swiss albino mice. The locomotor effect of crude methanol extract of the plant was investigated by open field and hole cross tests while the anxiolytic activity was determined using elevated plus-maze (EPM) and light/dark box (LDB) tests. Furthermore, the sedative activity of the plant extract was assessed by sodium thiopental-induced sleeping time test. The results demonstrated that the methanol extract significantly (p < 0.001) reduced locomotion of the animals in both hole cross and open field tests in dose-dependent manner at 200-400 mg/kg b.w. In both EPM and LDB tests, the plant extract produced significant anxiolytic effect (p < 0.05) at the doses of 100-400 mg/kg b.w. In addition, it showed significant (p < 0.001) dose-dependent decrease in the onset of sleep and an increase in duration of sleep in sodium thiopental-induced sleeping time test. Preliminary phytochemical analyses of the plant extract revealed the presence of alkaloid, flavonoid, glycoside, saponin, tannin and resin. In acute toxicity test, the leaf extract did not exhibit any adverse effect in mice during 7 days treatment. The results of the present studies suggest that the crude methanol extract of A. lebbeck leaves possesses significant CNS depressant, anxiolytic and sedative properties and rationalize the traditional uses of the plant.Bangladesh Pharmaceutical Journal 21(2): 80-86, 2018


2013 ◽  
Vol 2 (2) ◽  
pp. 23-28 ◽  
Author(s):  
Vajrala Neeharika ◽  
Humaira Fatima ◽  
Bommineni Madhava Reddy

Pupalia lappacea Juss (Family: Amaranthaceae) is claimed to be useful in treatment of bone fracture, wounds, boils, cough, toothache, fever and malaria. The study was aimed to evaluate the 80% aqueous ethanolic extract of aerial parts of P. lappacea for antinociceptive and antipyretic activities to verify the traditional claim. The extract was orally administered at doses of 200, 400 and 600 mg/kg. The extract has significantly (P<0.01) reduced the nociception induced by acetic acid. The effect produced was in dose dependent manner. The antinociceptive effect was not reversed by pretreatment with naloxone in acetic acid induced writhing test. In hot plate method, the extract has significantly increased the latency time of jump. The naloxone has partially antagonised the antinociception of extract in hot plate test indicating P. lappacea has morphinomimetic properties. In the study of the CNS-depressant effects, the extract was found to produce significant reduction in head pokes and locomotion in mice by using hole board and locomotor activity test respectively. The extract has significantly reduced the rectal temperature in yeast induced pyrexia in rats at 600 mg/kg. The activity produced by extract was in dose dependent manner. Phytochemical investigation of ethanolic extract of P. lappacea revealed the presence of steroids and/or triterpenoids, flavonoids and phenolic compounds which may be responsible for antinociceptive and antipyretic activity of P. lappacea.DOI: http://dx.doi.org/10.3329/icpj.v2i2.13193 International Current Pharmaceutical Journal 2013, 2(2): 23-28


2020 ◽  
Vol 23 (2) ◽  
pp. 141-145
Author(s):  
Asheka Rahman ◽  
Mohammad Mahmudul Hasan ◽  
Mohammad Abdullah Taher ◽  
Tanvir Muslim

Plants are the priceless sources of bioactive natural compounds. Medicinal plants have been used since time immemorial in both developing and developed countries. Flemingia macrophylla (Willd.) is widely used as a hereditary medicines. The current study was designed to observe the analgesic, antidiarrheal and CNS depressant activities of methanol extract of the leaves of F. macrophylla (MEFM) and its petroleum ether (PEFM), dichloromethane (DFM), chloroform (CFM) and aqueous (AFM) fractions. The analgesic activities was assessed by acetic acid induced writhing method at doses 200- and 400- mg/kg body weight. The CNS-depressant effect was assayed by phenobarbitone sodium-induced sleeping time test. The anti-diarrheal activity of the extract was evaluated using castor oil-induced diarrhea in mice. The crude extract displayed significant peripheral analgesic activity at both test doses with 56.72- to 59.70-% inhibition of writhing responses, respectively. In CNS-depressant test, the extract revealed its activity in a dose dependent manner. In screening for antidiarrheal activity, the extract exhibited 20.83 and 41.67 % inhibition of defecation at 200- and 400-mg/kg bw, respectively whereas the standard loperamide (50 mg/kg bw) displayed 70.83 % inhibition of defecation. Bangladesh Pharmaceutical Journal 23(2): 141-145, 2020


2016 ◽  
Vol 3 (2) ◽  
pp. 70-71
Author(s):  
Udhayasankar M.R ◽  
Danya U ◽  
Arumugasamy K

The present study, investigates themethanolicleaves extract of Wattakaka volubilis (Family: Asclepiadaceae) designated as 'the extract' was evaluated for analgesic activity in mice. The analgesic activity was evaluated in mice models. In the acute toxicity study, it was found that the extract was non-toxic up to 1000mg/kg, p. o. The extract (150, 200 and 400 mg/kg, p. o.) was found to possessanalgesic activities in a dose-dependent manner and the effect was comparable with thatproduced by the standard drug, Diclofenac sodium.


2016 ◽  
Vol 8 (3) ◽  
pp. 308
Author(s):  
Manirujjaman ◽  
Trudi Collet

<p>The purpose of this study was to examine the central nervous system (CNS) -depressant activity of methanolic and petroleum ether extracts of leaves obtained from <em>Manilkara zapota </em>(Sapotaceae) <em>in vivo</em>. CNS-depressant action was evaluated by observing the effects of plant extracts on both exploratory and spontaneous locomotor activity in mice using open field and hole cross tests respectively. The extracts were found to exhibit CNS-depressant activity in a dose-dependent manner. In the open field test, both the methanolic and petroleum ether extracts reduced the exploratory behavior of mice significantly (p&lt;0.05). Although the extracts reduced locomotor activity in the hole cross test, the results were found to be insignificant. Overall, these findings indicate that both types of extracts derived from <em>M. zapota</em> leaves possess CNS-depressant activity.</p>


Author(s):  
Mst. Shirajum Munira ◽  
Syeda Naureen Ahmed ◽  
Md. Siddiqul Islam ◽  
Md. Shariful Islam ◽  
Mst. Luthfun Nesa ◽  
...  

Aims: Bark of different fractions of Sonneratia caseolaris (Linn.) (Sonneratiaceae) were screened for its analgesic, anti-inflammatory and CNS activities. Study Design: For the purpose of these experiments the extracts were subjected to an in-vivo study. Place and Duration of Study: The study was carried out in August 2014 in the Department of Pharmacy, Southeast University, Dhaka, Bangladesh. Methodology: Ethanolic (ETF), ethyl acetate (EAF), chloroform(CLF) and pet ether (PTF) fractions of bark of  S. caseolaris were used to evaluate the analgesic activity using Acetic acid induced writhing and Formalin test. The same fractions were evaluated for anti-inflammatory activity using Carrageenan induced hind paw edema model. The CNS depressant activity was evaluated by Hole cross method. Two doses of 150 mg/kg and 300 mg/kg were used. Results: The different fractions produced significant (p<0.05) writhing inhibition at both doses and reduced the number of linking induced by formalin. Among these fractions the most potent activity was found in ETF about 79.40% (300 mg/kg) that was almost similar to standard Diclofenac-Na 82.78% (10 mg/kg), then EAF 74.59% followed by CLF 59.03% and PTF 52.45% at dose 300 mg/kg). In formalin-induced paw licking model, all fractions of S. caseolaris showed superior result in the late phase compare to the early phase .The same fractions of extracts caused significant (p<0.05) inhibition of carrageenan induced paw edema in a dose dependent manner. A statistically significant (p<0.05) locomotor activity was also observed. Conclusion: Our result revealed that all the extractives of S. caseolaris have noticeable analgesic, anti-inflammatory and CNS depressant activities.


Author(s):  
Deepsikha Bharali ◽  
Dipankar Saha

Objective: The aim and objectives of the present work is to determine pharmacological activity upon ethnopharmacological survey. The present study deals with phytochemical screening and analgesic as well as muscle relaxant activity of leaves of Mirabilis jalapa.Methods: The present study is aimed at phytochemical screening and evaluating the analgesic and muscle relaxant activities of ethanolic leaf extract of Mirabilis jalapa by using hot plate method and rota rod method respectively [1, 2]. The Phytochemical screening of the extract was done according to the standard procedures to reveal the presence of the active constituents like Alkaloids, flavonoids, phenols, glycosides, tannins, saponins, steroids, carbohydrates etc [3-5].Results: The analgesic and muscle relaxant activity study were dose dependent. The EEMJ extracts (100 mg/kg, 200 mg/kg, 500 mg/kg) and the standard drug Diclofenac sodium (25 mg/kg) shows significant increase in the reaction time when compared with control at 30 min, 60 min, 90 min and 120 min and the effect of standard was found to be highest during the study. Another study was designed to evaluate the skeletal muscle relaxant properties of ethanolic extract of leaves of Mirabilis jalapa. Linn by taking the EEMJ extracts (100 mg/kg, 200 mg/kg, 500 mg/kg) and standard drug Lorzepam (10 mg/kg). Both the extracts and standard drug show decrease in the fall of time in a dose dependent manner when compared with control at 15 min, 30 min, 45 min respectively. Conclusion: Therefore, from the above study it is revealed that Mirabilis jalapa showing better pharmacological activities (Analgesic and Muscle relaxant) in dose dependent manner.


Author(s):  
SAMBIT KUMAR SAHOO ◽  
STHITAPRAGNYA PANDA

Objective: The objective of the study was to evaluate the antinociceptive effect of Raphanus sativus Linn. using Randall Selitto method. Methods: Streptozotocin, lard, casein, cholesterol, DL-methionine, yeast powder, quercetin, thiobarbituric acid, 2-nitrobenzoic acid (5, 5, Dithiobis), hematoxylin, and hydrogen peroxide were used. A diet rich in fat content was fed to the animals for a period of 2 weeks. After a stabilization period of 2weeks, the treatment period started and continued for a period of 8weeks. The nociceptive parameters were assessed once a week by Randall Selitto method and hot plate test. After treatment, the animals were sacrificed, and antioxidant parameters were assessed using sciatic nerve homogenate and histopathological analysis of sciatic nerve. Results: Treatment R. sativus extract (RSE 100 mg/kg and 200 mg/kg) appreciably declined the levels of blood glucose in a dose-dependent manner, and it was comparable with standard quercetin. A significant increase in pain threshold levels was observed by the treatment RSE in hot plate method after the 4th week compared to diabetic control, and it was consistent until the end of treatment (p<0.01, p<0.001). In Randall Selitto method RSE produced a significant increase in paw withdrawal threshold after the 4th week compared to diabetic control, and it was consistently increased until the end of treatment. RSE (100 and 200 mg/kg) significantly restored the levels of antioxidant enzymes and decreased lipid peroxidation in a dose-dependent fashion in comparison with the diabetic control group. RSE (100 mg/kg and 200 mg/kg) attenuated the nerve degeneration and axonal swelling along with quercetin. Conclusion: The findings from the current study showed the antinociceptive and antioxidant effect of R. sativus in neuropathic pain in diabetes.


2019 ◽  
Vol 5 (1) ◽  
pp. 18-23
Author(s):  
Selina Kabir ◽  
Ronok Zahan ◽  
Abdullah Mohammad Sarwaruddin Chowdhury ◽  
Choudhury Mahmood Hasan ◽  
Mohammad Abdur Rashid

Background: Polyalthia simiarum (Hook. F. &Thomson) exhibits different effects in human body. Objective: As a part of ongoing research on medicinal plants of Bangladesh, the present study is focused to investigate the analgesic and anti-inflammatory activities of stem bark of Polyalthia simiarum (Annonaceae). Methodology: The ethyl acetate (EA) and petroleum ether (PE) extracts were subjected to qualitative chemical investigation for the identification of different phytoconstituents. The analgesic activity was determined for its central and peripheral pharmacological actions using tail immersion method and acetic acid-induced writhing test. The anti-inflammatory activity was evaluated by carrageenan induced paw edema in rats. Analgesic and anti-inflammatory data were evaluated statistically analysed by Dunnett’s-T test. Result: Both extracts at the dose of 50- and 100 mg/kg b.w., produced significant increase in pain threshold in tail immersion method whereas significantly reduced the writhing caused by acetic acid in a dose dependent manner. The EA and PE extracts showed anti-inflammatory activities at 50- and 100 mg/kg body weight. Among all the extracts, the EA extract showed a dose dependent and comparable analgesic activity in all the tested methods and also reduced the paw edema considerably (27.5% and 39.1% inhibition after 4h), in dose dependent manner when compared to carrageenan induced control rat. Conclusion: Therefore, the EA and PE extracts of Polyalthia simiarum were capable to exhibit moderate analgesic and anti-inflammatory activities. This is the first report of analgesic and anti-inflammatory potential of Polyalthia simiarum and can be further investigated to isolate the active compounds responsible for the biological activities. Journal of National Institute of Neurosciences Bangladesh, 2019;5(1): 18-23


2013 ◽  
Vol 24 (1) ◽  
pp. 5-12
Author(s):  
Abhishek Tiwari ◽  
Anita Singh

AbstractIn the present synthesis a series of 1-(1-methyl-2-oxo-1,2-dihydroquinolin-4-yl)-2-substituted phenylpyrazolidine-3,5-diones were prepared. By the reaction of N-methylbenzenamine with diethyl malonoate 4-hydroxy-1-methylquinolin-2(1H)-one were prepared, which on treatment with posphoryl chloride converted into 4-chloro-1-methylquinolin-2(1H)-one. Subsequently with substituted phenyl hydrazines 1-methyl-4-(2- substitutedphenylhydrazinyl)quinolin-2(1H)-one were obtained, which on reaction with diethyl malonate gave 1- (1-methyl-2-oxo-1,2-dihydroquinolin-4-yl)-2-substituted phenylpyrazolidine-3,5-diones. All structures were characterized by IR, 1HNMR & mass spectrometry. Further all the synthesized compounds were evaluated for their anti-nociceptive activity in mice by Eddy’s hot plate and acetic acid induced writhing response. All compounds have shown the activity. In hot plate model compounds QAA-04c and QAA-04d have given more activity than standard, whereas in case of acetic acid induced writhing model compounds QAA-04a and QAA- 04d have given significant analgesic activity which is comparable with the standard drug. Compound QAA-04b has shown least analgesic activity. Compound QAA-04a was almost equal in activity to the standard drug diclofenac sodium and was considered as the lead molecule.


Sign in / Sign up

Export Citation Format

Share Document