scholarly journals Antioxidant and antinociceptive effects of hydroalcoholic root extract of Asparagus officinalis L.

2020 ◽  
Vol 24 (4) ◽  
pp. 322-330
Author(s):  
Mohammad Fathalipour ◽  
◽  
Mohammad-Reza Delnavazi ◽  
Omid Safa ◽  
Nasser Zarifinia ◽  
...  
Keyword(s):  
Plant Extract ◽  
Early Stage ◽  
Butylated Hydroxytoluene ◽  
Asparagus Officinalis ◽  
Tail Flick ◽  
Root Extract ◽  
Dependent Manner ◽  
Tail Flick Test ◽  
Reducing Ability ◽  
Antinociceptive Effects

Introduction: Asparagus officinalis L. is a medicinal plant, which contains various natural bioactive phytochemicals with potential different pharmacological activities. The present study was designed to investigate the antioxidant and antinociceptive activities of the hydroalcoholic extract obtained from asparagus roots. Methods: The plant material was extracted using ethanol 70% and preliminary phytochemical analyses were carried out. The in vitro antioxidant effects of the plant extract were evaluated using 1, 1-diphenyl-2-picrylhydrazyl (DPPH) radicals and total reducing ability compared to the butylated hydroxytoluene (BHT) as a standard control. The antinociceptive effects were also assessed using formalin and tail-flick test in male Wistar rats. Results: The plant extract was relatively rich in flavonoids. The IC50 value for DPPH scavenging activity of the extract (1117.65±14.26 μg/ml) was significantly higher than that of BHT (64.35±4.09 μg/ml). The plant extract exerted a significantly lower total reducing ability compared to that of BHT. The extract exhibited a significant antinociceptive effect at the early stage of formalin test in the dose of 500mg/kg intraperitoneally. The results of tail-flick test also demonstrated antinociceptive effects compared to control in a dose-dependent manner. However, these antinociceptive activities were not comparable with morphine as a reference agent. Conclusion: A. officinalis roots extract demonstrated considerable antioxidant and antinociceptive activities and it might be attributed to its flavonoids content.

In Vivo Anti-Anemic Effect of an Aqueous Root Extract of Phyllanthus Muellerianus (Kuntze) Exell in Model Rats.

2021 ◽  
Author(s):  
James Nyirenda ◽  
Gershom B. Lwanga ◽  
Kaampwe M. Muzandu ◽  
David K. Chuba ◽  
Gibson M. Sijumbila
Keyword(s):  
Plant Extract ◽  
Hematological Parameters ◽  
Negative Control ◽  
Control Group ◽  
Albino Rats ◽  
Root Extract ◽  
Dependent Manner ◽  
Phytochemical Screening ◽  
Aqueous Root Extract

Abstract Ethnopharmacological relevanceAnemia is a very serious condition in Zambia. One of the plants that has been used traditionally is Phyllanthus muellerianus where different parts of shrub are used to treat a number of diseases in Zambian folklore medicine. Earlier studies have investigated medicinal properties of its aqueous root extracts. This study evaluated the effect of P. muellerianus roots on the hematological indices of albino rats and determined its phytochemical profile. Aim of the studyTo carry out phytochemical screening of the root extract and assess the ant-anemic effect of the aqueous extract on laboratory rats with tail-bled induced anemia Materials and MethodsThirty-six male albino rats placed in six groups were used for the study. The groups comprised the 100, 200, and 400 mg/kg plant extract, Ranferon (200 mg/kg) positive control, anemic non treated control and a normal (non-anemic) control. Anemia, induced through bleeding of the rats, was defined as hemoglobin (Hb) levels less than 12 g/dL. The anti-anemic potential of the plant was determined by comparing its effect on the hematological parameters of rats on treatment to that of the control group.ResultsAfter treatment, rats on the 400 mg/kg plant extract dose showed the greatest increase in the mean values for Hb, Packed cell volume (PCV) and RBC count were 43.3±1.2%, 15.4±0.3 g/dL and 6.3±0.3 x106 /mL respectively, when compared to the negative control group (P < 0.05). Phytochemical screening revealed positive results for alkaloids, flavonoids, saponins, glycosides, steroids, triterpenoids and tannins with varying amounts.Conclusions. The aqueous root extract of P. muellerianus was efficacious against anemia in a dose-dependent manner. The phytochemical compositions seem to be responsible for its hematopoietic properties. Thus, the root decoction of P. muellerianus is useful in alleviating anemia and the results lend credence to its use in traditional medicine in the management of anemia.

Antinociceptive Profiles of Platycodin D in the Mouse

2004 ◽  
Vol 32 (02) ◽  
pp. 257-268 ◽  
Author(s):  
Seong-Soo Choi ◽  
Eun-Jung Han ◽  
Tae-Hee Lee ◽  
Ki-Jung Han ◽  
Han-Kyu Lee ◽  
...  
Keyword(s):  
Antinociceptive Effect ◽  
Control Level ◽  
Tail Flick ◽  
Triterpene Saponins ◽  
Tail Flick Test ◽  
Platycodin D ◽  
Pain Models ◽  
Antinociceptive Effects ◽  
Dose Dependent ◽  
Higher Doses

Platycodin D (PD), one of several triterpene saponins, was isolated from roots of Platycodon grandiflorum. We previously reported that intracerebroventricular (i.c.v.) administration of PD showed an antinociceptive effect as measured by the tail-flick assay. However, its exact role in the regulation of antinociception in the various types of pain models has not yet been characterized. Thus, we attempted to find antinociceptive profiles of PD in various pain models. PD administered intraperitoneally (i.p.), i.c.v. or intrathecally (i.t.) showed antinociceptive effects in dose-dependent manners as measured by the tail-flick, writhing and formalin tests. In the tail-flick test, PD at the low doses reached the peak after 15 minutes and returned to the control level after 60 minutes. However, higher doses of PD showed a strong antinociception at least for 1 hour. PD administered i.t. showed stronger antinociception than that induced by i.c.v. administration PD in both tail-flick and writhing tests. In the formalin test, PD administered i.p., i.c.v. or i.t. showed antinociceptive effects during both the first (direct nociceptive stimulation) and second (late inflammatory) phases. Pretreatment with naltrexone i.p., i.c.v. or i.t. did not affect PD-induced inhibition of the tail-flick response. Our results suggest that PD shows a strong antinociceptive effect on the tail-flick, writhing and formalin tests, acting on central nervous system. However, PD-induced antinociception may not be mediated by the opioid receptors.

scholarly journals The Role of NMDARs Ligands on Antinociceptive Effects of Pregabalin in the Tail Flick Test

2015 ◽  
Vol 5 (5) ◽  
Author(s):  
Manzumeh-Shamsi Meymandi ◽  
Fariborz Keyhanfar ◽  
Omid Yazdanpanah ◽  
Gioia Heravi
Keyword(s):  
Tail Flick ◽  
Tail Flick Test ◽  
Antinociceptive Effects

scholarly journals Modulation of Morphine-induced Antinociception in Acute and Chronic Opioid Treatment by Ibudilast

2009 ◽  
Vol 111 (6) ◽  
pp. 1356-1364 ◽  
Author(s):  
Tuomas O. Lilius ◽  
Pekka V. Rauhala ◽  
Oleg Kambur ◽  
Eija A. Kalso
Keyword(s):  
Cell Activation ◽  
Antinociceptive Effect ◽  
Opioid Analgesics ◽  
Morphine Tolerance ◽  
Tail Flick ◽  
Sprague Dawley ◽  
Tail Flick Test ◽  
Glial Cell Activation ◽  
Sprague Dawley Rats ◽  
Antinociceptive Effects

Background Opioid analgesics are effective in relieving chronic pain, but they have serious adverse effects, including development of tolerance and dependence. Ibudilast, an inhibitor of glial activation and cyclic nucleotide phosphodiesterases, has shown potential in the treatment of neuropathic pain and opioid withdrawal. Because glial cell activation could also be involved in the development of opioid tolerance in rats, the authors studied the antinociceptive effects of ibudilast and morphine in different models of coadministration. Methods Antinociception was assessed using male Sprague- Dawley rats in hot plate and tail-flick tests. The effects of ibudilast on acute morphine-induced antinociception, induction of morphine tolerance, and established morphine tolerance were studied. Results Systemic ibudilast produced modest dose-related antinociception and decreased locomotor activity at the studied doses of 2.5-22.5 mg/kg. The highest tested dose of 22.5 mg/kg produced 52% of the maximum possible effect in the tail-flick test. It had an additive antinociceptive effect when combined with systemic morphine. Coadministration of ibudilast with morphine did not attenuate the development of morphine tolerance. However, in morphine-tolerant rats, ibudilast partly restored morphine-induced antinociception. Conclusions Ibudilast produces modest antinociception, and it is effective in restoring but not in preventing morphine tolerance. The mechanisms of the effects of ibudilast should be better understood before it is considered for clinical use.

scholarly journals Possible Involvement of Serotonergic Mechanism(s) in the Antinociceptive Effects of kaempferol

2020 ◽  
pp. 64-70
Keyword(s):  
Locomotor Activity ◽  
Receptor Antagonist ◽  
Serotonin Receptors ◽  
Metabolic Diseases ◽  
Male Rats ◽  
Tail Flick ◽  
Tail Flick Test ◽  
Way 100635 ◽  
Antinociceptive Effects ◽  
Male Wistar Rats

Background and Objectives: A flavonoid kaempferol (KM) exerts an anti-inflammatory effect and is reportedly capable of preventing metabolic diseases. Nonetheless, a limited number of studies have been carried out on the antinociceptive effects of kaempferol. Objectives: The present study aimed to investigate the involvement of serotonin receptors in the antinociceptive-like activity of KM in male Wistar rats using the tail-flick test. Materials and Methods: The compounds (i.e., KM, morphine, and diclofenac) were intracerebroventricularly administered to rats for the examination of central effects on the thermal pain using the tail-flick test. For the evaluation of the involvement of serotonin receptors in the possible antinociceptive effects of kaempferol, several antagonists (i.e., tropisetron, ketanserin, GR113808, WAY 100635, and penbutolol) were used. Additionally, locomotor activity and motor responses were investigated by the rotarod test after KM treatment. Results: The intracerebroventricular microinjections of KM showed antinociceptive effects using the tail-flick test. The pretreatment with tropisetron as a 5-HT3 receptor antagonist at 1 and 10 mg completely reversed the KM-related antinociception. Furthermore, ketanserin (5-HT2A receptor antagonist) and GR113808 (5-HT4 receptor antagonist) both at 10 mg reduced KM-related antinociception; however, 5-HT1A receptor antagonist WAY 100635 and 5-HT1B antagonist penbutolol did not decrease KM-related antinociception. All KM doses were not observed with a significant effect on locomotor activity or motor reactions. Conclusion: The results of the current study suggested that serotonergic receptors (i.e., 5-HT2A, 5-HT3, and 5-HT4) are effective in the KM antinociceptive activity in male rats.

scholarly journals Evaluation of Antinociceptive Effects of Chitosan-Coated Liposomes Entrapping the Selective Kappa Opioid Receptor Agonist U50,488 in Mice

Medicina ◽  
2021 ◽  
Vol 57 (2) ◽  
pp. 138
Author(s):  
Liliana Mititelu Tartau ◽  
Maria Bogdan ◽  
Beatrice Rozalina Buca ◽  
Ana Maria Pauna ◽  
Cosmin Gabriel Tartau ◽  
...  
Keyword(s):  
Opioid Receptor ◽  
Receptor Agonist ◽  
Kappa Opioid Receptor ◽  
Tail Flick ◽  
Opioid Agonist ◽  
Kappa Opioid ◽  
Tail Flick Test ◽  
Writhing Test ◽  
Opioid Receptor Agonist ◽  
Antinociceptive Effects

Background and Objectives: The selective kappa opioid receptor agonist U50,488 was reported to have analgesic, cough suppressant, diuretic and other beneficial properties. The aim of our study was to analyze the effects of some original chitosan-coated liposomes entrapping U50,488 in somatic and visceral nociceptive sensitivity in mice. Materials and Methods: The influence on the somatic pain was assessed using a tail flick test by counting the tail reactivity to thermal noxious stimulation. The nociceptive visceral estimation was performed using the writhing test in order to evaluate the behavioral manifestations occurring as a reaction to the chemical noxious peritoneal irritation with 0.6% acetic acid (10 mL/kbw). The animals were treated orally, at the same time, with a single dose of: distilled water 0.1 mL/10 gbw; 50 mg/kbw U50,488; 50 mg/kbw U50,488 entrapped in chitosan-coated liposomes, according to the group they were randomly assigned. Results: The use of chitosan-coated liposomesas carriers for U50,488 induced antinociceptive effects that began to manifest after 2 h, andwere prolonged but with a lower intensity than those caused by the free selective kappa opioid in both tests. Conclusion: In this experimental model, the oral administration of nanovesicles containing the selective kappa opioid agonist U50,488 determined a prolonged analgesic outcome in the tail flick test, as well as in the writhing test.

Gabapentin enhances the antinociceptive effects of spinal morphine in the rat tail-flick test

Pain ◽  
1997 ◽  
Vol 72 (3) ◽  
pp. 375-382 ◽  
Author(s):  
Megumi Shimoyama ◽  
Naohito Shimoyama ◽  
Charles E Inturrisi ◽  
Kathryn J Elliott
Keyword(s):  
Tail Flick ◽  
Tail Flick Test ◽  
Antinociceptive Effects ◽  
Rat Tail

scholarly journals Alteration in behavior of rat after chronic exposure to acetamiprid

2019 ◽  
Vol 12 (2) ◽  
pp. 254-257 ◽  
Author(s):  
Samiran Mondal ◽  
Saktipada Pradhan ◽  
Sunit K. Mukhopadhayay
Keyword(s):  
Treated Group ◽  
Control Group ◽  
Tail Flick ◽  
Formalin Injection ◽  
Dependent Manner ◽  
Sprague Dawley ◽  
Tail Flick Test ◽  
Group Iii ◽  
Multiple Exposures ◽  
Group I

Background and Aim: Acetamiprid is a chemical of neonicotinoid group which binds with nicotinic acetylcholine receptor (nAChR) and alters the brain function. The present study was taken up to enlight the understanding of nociception behavior in Sprague Dawley (SD) rat after multiple exposures to acetamiprid. Materials and Methods: For experiment purpose, a total of 48 SD rats were divided into four dose groups having 12 animals each. Group I was control group received only distilled water. Group II, Group III, and Group IV were treated with acetamiprid at a dose rate of 5, 20, and 40 mg/kg body weight, respectively. Rats were tested in induced pain by formalin injection and tail flick test. Results: The flinch counts in formalin-induced pain in acetamiprid-treated rat were reduced in a dose-dependent manner, whereas, in tail flick test, no such altered pain behavior was observed in treated group compared to control animals. Conclusion: Acetamiprid alters the centralized nociception through nAChR but could not trigger the associated signal to inhibit the nociception peripherally.

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