Evaluation of antinociceptive and anti-inflammatory properties of methanolic crude extract of Lophopetalum javanicum (bark)

Author(s):  
Prawej Ansari ◽  
Sanjeeda Sarmin Badhan ◽  
Shofiul Azam ◽  
Nasrin Sultana ◽  
Sabbir Anwar ◽  
...  

AbstractThe aim of the current study was to investigate the scientific basis of the traditional application ofPresent study includes the preliminary screening of the phytochemical composition and in vivo analgesic and anti-inflammatory activity of methanolic extract ofOne hour after the administration of carrageenan, rat’s paw was inflamed, and after treating it with 500 mg/kg dose, increase in the significant inhibitory effect on paw was observed. At the third hour after carrageenan injection, extreme inhibition (55.61%±0.015%; p<0.001) resulted by methanolic extract. By using hot plate method, it was found thatThis study manifested that the methanolic extract of

2017 ◽  
Vol 12 (1) ◽  
pp. 84
Author(s):  
Vijayalakshmi Maruthamuthu ◽  
Ruckmani Kandasamy

<p class="Abstract">The plant <em>Myxopyrum </em>serratulum is traditionally claimed to relieve asthma and cough. The present study was undertaken to evaluate the bronchodilatory effect of the methanolic extract of <em>M. </em>serratulum on histamine-induced bronchospasm by <em>in vivo</em> and the inhibitory effect of the extract on histamine-contracted tracheal chain and ileum by <em>in vitro</em> guinea pig model. Additionally, the relaxant effect of four cumulative concentrations of the extract (0.25, 0.5, 0.7 and 1.0 g%) was assessed using precontracted tracheal chain under different conditions. The extract (400 mg/kg) prolonged the preconvulsive time to 102.3 ± 3.8 sec when compared to saline and standard chlorpheniramine maleate as 121.3 ± 4.5 sec (p&lt;0.05). The extract also possessed significant inhibitory effect on histamine-contracted guinea pig ileum and tracheal chain and also exhibited significant relaxation effect on precontracted tracheal chain of guinea pig models contracted by 60 mM KCl (p&lt;0.001) and 10 µM methacholine (p&lt;0.001) when compared with standard theophylline.</p>


Author(s):  
P. Agrawal ◽  
K. Mruthunjaya ◽  
K. Goyal ◽  
D. Ahuja ◽  
M.K. Gupta

The present study was aimed to evaluate analgesic, anti-inflammatory and anti pyretic activity of methanolic extract and aqueous extract of leave of Rotula aquatica L. in mice and rats. The methanolic extract of R. aquatica L. leave at a dose of 200mg/kg body weight has shown significant analgesic, antipyretic and anti-inflammatory activity as compared to aqueous extract. The result of hot plate method indicated that the total methanolic extract showed significant increase (P<0.01) in reaction time at a 3,4and 6 hours comparable to the reference drug Pentazocin but lesser (P<0.05) after 2hr. The tail immersion and hot plate tests revealed that plant has high analgesic activity. Both tests showed highest degree of analgesia in methanolic extract compared to aqueous extract. The total methanolic extract of R.aquatica L. leave at the a dose of 200mg/kg body weight has shown significant (p<0.01) antipyretic activity as compared to aqueous extract, methanolic extract also found to have significant result in Carrageenin-induced paw oedema; suspect edmodeo faction may be due to possible inhibition of lipooxygenase pathway.


2015 ◽  
Vol 9 (1) ◽  
pp. 43-47
Author(s):  
G. Pranaya ◽  
P. Venkata Smitha ◽  
N. Srinivasa Reddy ◽  
R. Vinay ◽  
Ch. Murali Mohan ◽  
...  

Ventilago calyculata was traditionally used to treat sprains and pain. The purpose of this study was to evaluate the analgesic and anti-inflammatory activity of methanolic extract of bark of Ventilago calyculata (MVC). For evaluating analgesic activity, Hot plate method, Tail-flick method, Formalin test and Writhing methods were used. For evaluating anti-inflammatory activity Carrageenan induced paw edema and Xylene induced ear edema methods were used. Administration of MVC (100 and 200mg/kg) significantly reduced the total number of writhings in Acetic acid induced writhing method. In Hot plate and Tail-Flick methods there was a significant increase in baseline. There was a significant reduction in ear edema in Xylene induced ear edema method. The results suggest that the methanolic extract of bark of Ventilago calyculata might have analgesic and anti-inflammatory activity.DOI: http://dx.doi.org/10.3126/ijls.v9i1.11925 International Journal of Life Sciences Vol.9(1) 2015 43-47


2021 ◽  
Vol 12 (7) ◽  
Author(s):  
Ying Liu ◽  
Wenjie Liu ◽  
Ziqiang Yu ◽  
Yan Zhang ◽  
Yinghua Li ◽  
...  

AbstractBromodomain-containing protein 4 (BRD4) has emerged as a promising treatment target for bone-related disorders. (+)-JQ1, a thienotriazolodiazepine compound, has been shown to inhibit pro-osteoclastic activity in a BRD4-dependent approach and impede bone loss caused by ovariectomy (OVX) in vivo. However, clinical trials of (+)-JQ1 are limited because of its poor druggability. In this study, we synthesized a new (+)-JQ1 derivative differing in structure and chirality. One such derivative, (+)-ND, exhibited higher solubility and excellent inhibitory activity against BRD4 compared with its analogue (+)-JQ1. Interestingly, (-)-JQ1 and (-)-ND exhibited low anti-proliferative activity and had no significant inhibitory effect on RANKL-induced osteoclastogenesis as compared with (+)-JQ1 and (+)-ND, suggesting the importance of chirality in the biological activity of compounds. Among these compounds, (+)-ND displayed the most prominent inhibitory effect on RANKL-induced osteoclastogenesis. Moreover, (+)-ND could inhibit osteoclast-specific gene expression, F‐actin ring generation, and bone resorption in vitro and prevent bone loss in OVX mice. Collectively, these findings indicated that (+)-ND represses RANKL‐stimulated osteoclastogenesis and averts OVX-triggered osteoporosis by suppressing MAPK and NF-κB signalling cascades, suggesting that it may be a prospective candidate for osteoporosis treatment.


2015 ◽  
Vol 21 (5) ◽  
pp. 273-278 ◽  
Author(s):  
Grażyna Chłoń-Rzepa ◽  
Agnieszka W. Jankowska ◽  
Małgorzata Zygmunt ◽  
Krzysztof Pociecha ◽  
Elżbieta Wyska

AbstractA series of new 8-alkoxy-1,3-dimethyl-2,6-dioxopurin-7-yl-substituted acetohydrazides and butanehydrazides 6–12 was synthesized and evaluated for the analgesic activity in two in vivo models: the writhing syndrome and the hot-plate tests. Among the investigated derivatives, compounds with N′-arylidenehydrazide moiety 9–12 show analgesic activity significantly higher than that of acetylsalicylic acid, which may indicate the importance of this structural element for analgesic properties. The lack of the activity in the hot-plate test may suggest that the analgesic activity of the newly synthesized compounds is mediated by a peripheral mechanism. The selected compounds 7 and 12 inhibit tumor necrosis factor α production in a rat model of lipopolysaccharide-induced endotoxemia, similarly to theophylline, which may confirm their anti-inflammatory properties.


Author(s):  
Pacôme Kouadio N’Go ◽  
Lazare Tehoua ◽  
Eric-Kevin Gbouhoury Bolou ◽  
Aicha Salamentou Touré ◽  
Antoine Némé Tako

Aims: Adenia lobata (Jacq.) Engl. (Passifloraceae) is widely used in Ivorian traditional pharmacopeia to heal various chronic diseases, relieve headache and pain of gingiva inflammation, and facilitate labor. Here, we investigated the effects of hydroethanolic extract Adenia lobata (HEAL) on nociceptive pain and subsequent anxiety-like behavior. Materials and Methods: We used several experimental pain tests as the writhing, formalin and hot plate to evaluate both antinociceptive and anti-inflammatory actions of the extract. Anxiety related to nociception was tested with open field and elevated plus maze tests. Then, mice were sacrificed for assessing some oxidative stress markers.    Results: The extract of 30 mg/kg, p.o. reduced in the similar manner as reference peripheral drug salcylicacetic acid (ASA, 200 mg/kg, i.p.) the number of writhings induced by acid acetic. In both neurogenic and inflammatory phases of formalin test, the extract demonstrated an effective antinociceptive activity than ASA, but comparable to central analgesic tramadol (50 mg/kg, i.p). However, Adenia lobata reduced lesser thermal-induced pain than tramadol in hot plate test, but significantly compared to ASA. Furthermore, HEAL altered anxiety-like behavior in each case of the pain condition studied. Also, the extract showed the highest antioxidant activity by reduction oxide nitric (NO) and malondialdehyde (MDA), and increase non protein thiol (NP-SH) levels.     Conclusion: In conclusion, HEAL possesses antinociceptive and anti-inflammatory actions on peripheral and central mechanisms of pain. The phytochemicals components of the extract as alkaloids and flavonoids suggest to interact with the opioid system and combat the oxidative stress, respectively. Our findings provide scientific basis for the use of Adenia lobata in traditional medicine against pain and related diseases.


2021 ◽  
Vol 9 (1) ◽  
pp. 1-7
Author(s):  
Kishor Kumar Roy ◽  
Md. Kabirul Islam Mollah ◽  
Md. Masud Reja ◽  
Dibyendu Shil ◽  
Ranjan Kumar Maji

Enhydra fluctuations an edible semi-aquatic vegetable plant are widely used in the traditional system of medicine. Ethanolic extract of Enhydra fluctuans was screened for analgesic & anti-inflammatory activity. Analgesic activity was evaluated by the hot plate method and anti-inflammatory activity was evaluated by formalin induce paw edema in Wistar rats (male). Ethanolic extract dose of 300 mg/kg reduce formalin induce paw inflammation and also increased the pain threshold in rats evidenced by hot plate method. The experimental results concluded that Enhydra fluctuans have significant analgesic and anti-inflammatory activity may due to flavonoid and phenolic compound content.


Author(s):  
Abishek P. Raichurkar ◽  
Shashikala Gowdara Hanumanth Reddy

Background: Non-steroidal anti-inflammatory drugs and opioids are the most preferred drugs for pain relief. Considering the gastrointestinal toxicity, dependence and other side effects, search for better analgesic drug continues. Quercus infectoria (QI) is from the family Fagaceae. The galls of QI are comprised of tannin (36 to 60%), gallic acid, ellagic acid, and syringic acid. They possess antioxidant, anti-inflammatory, antimicrobial, and anti-diabetic properties. In India, galls of QI have been used for the treatment of toothache, diarrhoea, sore throat and inflammatory diseases as a home remedy. This study was conducted to evaluate the analgesic activity of methanolic extract of galls of QI on wistar rats using tail-flick and Eddy’s hot-plate methods. The objective of the study was to evaluate the analgesic activity of methanolic extract of galls of QI alone and as an adjuvant with tramadol on Wistar rats.Methods: Total of 24 wistar rats were included in the study and divided into 4 groups. They received drugs intra-peritoneally as follows. In group 1, normal saline, in group 2, tramadol, in group 3, methanolic extract of galls of QI and in group 4, tramadol with methanolic extract of galls of QI was available.Results: Methanolic extract of galls of QI produced significant maximal possible analgesia (<0.001) at 30 and 60 minutes in tail-flick method whereas it failed to produce analgesia in hot-plate method during all time intervals.Conclusions: Methanolic extract of galls of QI showed analgesic activity in tail-flick method indicating that its possible mechanism of action is spinally mediated.


Author(s):  
Boussoualim Naouel ◽  
Trabsa Hayat ◽  
Krache Imane ◽  
Ouhida Soraya ◽  
Arrar Lekhmissi ◽  
...  

Background: Anchusa azurea Mill. (AA) is a medicinal plant largely used traditionally in folk medicine in Algeria, it is locally named: hamham. It is effective in the treatment of various diseases. Objectives: The aim of the present study is to determine the antioxidant, anti-inflammatory and anti-hemolytic effects of phenolic fractions from Anchusa azurea Mill. Methods: In this study, various extracts from Anchusa azurea Mill. (AA) using solvents with increasing polarity were prepared. The quantification of polyphenols and flavonoids was determined. The anti-radical activity of the different extracts was evaluated using DPPH and by measuring the inhibition of the oxidative degradation of β-carotene. The In vitro antihemolytic effect of the plant extracts is determined (CrE, ChE, AcE and AqE). For each extract, four concentrations were tested: 10.59, 21.18, 42.37, 84.74 µg/ml. Vitamin C is used as a standard. Free-radical attack was measured by measuring the HT50 (Half-Hemolysis Time). The anti-inflammatory effect using PMA on mice of the methanolic extract (CrE) was evaluated. Results: The quantification of polyphenols and flavonoids showed that ethyl acetate extract (AcE) contains a higher amount of polyphenols. However, chloroform extract (ChE) presents a higher amount of flavonoids. AcE showed an important scavenging activity using the DPPH radical (IC50= 68.35 µg/ml). The results showed that AcE also exhibited very great inhibition on the oxidation of β-carotene/linoleic acid (84.33%). All extracts increased the HT50 values (Half-Hemolysis Time) in a dose-dependent manner. The three highest concentrations (21.18, 42.37 and 84.74 µg / ml) of ChE caused a very significant delay (p ≤ 0.001) of hemolysis compared to the negative control and the positive control "VIT C". The anti-inflammatory effect using PMA on mice showed that the methanolic extract (CrE) of AA reduced the weight of the ear edema. Conclusions: This plant has a strong pharmacological power, which supports its traditional medicinal use.


2021 ◽  
Vol 16 (10) ◽  
pp. 1934578X2110559
Author(s):  
Le Minh Ha ◽  
Ngo Thi Phuong ◽  
Nguyen Thi Thu Hien ◽  
Pham Thi Tam ◽  
Do Thi Thao ◽  
...  

In this study, we aimed at evaluating in vitro and in vivo anti-inflammatory activity of various extracts of the rhizomes of Globba pendula Roxb. Three extracts ( n-hexane, ethyl acetate, and water) were screened for their inhibitory effect on NO production by lipopolysaccharide-stimulated RAW 264.7 macrophages. The ethyl acetate extract of G. pendula rhizomes (EGP) showed a potential effect with an IC50 value of 32.45 µg/mL. For in vivo study, the ethyl acetate extract was further investigated for its anti-inflammatory effect using collagen antibody-induced arthritic mice (CAIA). The level of arthritis in experimental mice significantly reduced ( P < .05) after treatment with EGP at a dose of 500 mg/kg body weight (b.w.). This study also revealed that EGP is orally non-toxic. Ethyl p-methoxy cinamate was identified as the main constituent of EGP, which may result in its anti-inflammatory effect.


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