scholarly journals CNS Activity of Myristica fragrans Houtt. - An Experimental Study

2018 ◽  
Vol 17 (1) ◽  
pp. 98-106
Author(s):  
Ankita Mishra ◽  
Syed Ziaur Rahman ◽  
Rahat Ali Khan
Keyword(s):  
Ethyl Acetate ◽  
Open Field ◽  
Medical Science ◽  
Ethanolic Extract ◽  
Tail Flick ◽  
Hot Plate ◽  
Hot Plate Test ◽  
Tail Flick Test ◽  
Myristica Fragrans ◽  
Myristica Fragrans Houtt

Objective: To evaluatethe role of Myristica fragrans Houtt. for its analgesic, sedative and anxiogenic activity.Method: Charles Foster rats were administered orally the ethanolic extract (EEMF) and fractions of extract in ethyl acetate (EAMF), chloroform (CMF), and n-hexane (HMF). They were screened for sedative activity using Pentobarbitone sleep potentiation test, analgesic activity using Eddy’s hot plate and Tail flick test; and anxiogenic or anxiolytic activity using Open field test.Result: In pentobarbitone induced sleep potentiation test, the ethanolic extract (EEMF) and ethyl acetate fraction (EAMF) showed significant decrease in latency of sleep and highly significant increase in duration of sleep. In Open field test, EEMF, EAMF and HMF showed highly significant decrease in locomotion parameters as shown by decrease in rearing, preening and ambulation. In Eddy’s hot plate test and Tail flick test, highly significant increase in reaction time was seen in EEMF, EAMF, HMF groups.Conclusion: The observed results suggest that Myristica fragrans has analgesic, anxiogenic and sedative activity.Bangladesh Journal of Medical Science Vol.17(1) 2018 p.98-106

Analgesia and autonomic function following intrathecal administration of morphine and norepinephrine to the rat

1985 ◽  
Vol 63 (6) ◽  
pp. 656-662 ◽  
Author(s):  
C. W. Loomis ◽  
F. W. Cervenko ◽  
K. Jhamandas ◽  
M. Sutak ◽  
B. Milne
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Partial Pressure ◽  
Blood Gases ◽  
Tail Flick ◽  
Drug Infusion ◽  
Hot Plate ◽  
Hot Plate Test ◽  
Tail Flick Test ◽  
Plate Test

The acute intrathecal (i.t.) administration of 10, 25, 50, and 100 μg morphine and 7.5, 10, 15, and 30 μg (−)norepinephrine (NE) to the rat produced dose-dependent, long-lasting analgesia as assessed by the tail-flick and hot-plate tests. For i.t. morphine, maximum analgesia was observed 30–60 min after drug administration. The duration of analgesia in the tail-flick test ranged from 30 to 150 min; the duration of analgesia in the hot-plate test ranged from 60 to 120 min. For i.t. NE, maximum analgesia was observed 15–60 min after drug infusion. The duration of NE-induced analgesia in the hot-plate test ranged from 45 to 120 min and was 120 min in the tail-flick test. The effects of acute i.t. and intravenous (i.v.) infusions of morphine (10 μg) and NE (15 μg) on heart rate, blood pressure, arterial pH, partial pressure of oxygen [Formula: see text], partial pressure of carbon dioxide [Formula: see text], and standard bicarbonate were determined over 45 min in rats anesthetized with α-chloralose (70 mg/kg). Morphine significantly decreased [Formula: see text] throughout the experiment but did not affect blood pressure, heart rate, pH, [Formula: see text] and standard bicarbonate. A significant increase in blood pressure (137% of control) was observed 2.5 min after i.t. administration of NE. Intravenous NE produced a marked increase in blood pressure (246% of control) followed by a compensatory decrease in heart rate. There were no significant changes in blood gases with i.t. and i.v. NE. The data suggest that i.t. morphine and NE can produce effective analgesia with minimal effects on cardiovascular and respiratory function.

scholarly journals Synthesis and analgesic activities of some new 5-chloro-2(3H)-benzoxazolone derivatives

2017 ◽  
Vol 1 (3) ◽  
pp. 235-240 ◽  
Author(s):  
Yusuf Mulazim ◽  
Cevdet Berber ◽  
Hakkı Erdogan ◽  
Melike Hacer Ozkan ◽  
Banu Kesanli
Keyword(s):  
Biological Activities ◽  
Inflammatory Activity ◽  
Microwave Assisted Synthesis ◽  
Tail Flick ◽  
Synthesis Methods ◽  
Hot Plate ◽  
Hot Plate Test ◽  
Tail Flick Test ◽  
Anti Inflammatory ◽  
Analgesic Activities

Abstract Affordable and practical synthesis methods in drug development have always been very attractive. Herein, microwave assisted synthesis was utilized to prepare piperazine substituted 5-chloro-2(3H)-benzoxazolone derivatives in 5 minutes. Structural characterization of these 5-chloro-2(3H)-benzoxazolone derivatives was achieved by IR, NMR, ESI-MS and elemental analysis. Since these types of compounds have been shown to have anti-inflammatory and analgesic activities there biological activities were also examined. Indomethacin (INDO) and acetylsalicylic acid (ASA) were used as reference. Carrageenan-induced hind paw edema in mice test was used to study anti-inflammatory activity. Compound 1 (100 mg / kg dose) showed the longest anti-inflammatory activity among the title compounds synthesized. For the analgesic activities, both hot-plate and tail-flick tests were employed. Compound 3 was found to have the highest activity in the hot-plate test whereas in the tail-flick test, compounds 1 and 2 showed higher anti-nociceptive activity.

scholarly journals Antipyretic and antinociceptive properties of the aqueous extract and saponin from an edible vegetable: Vernonia amygdalina leaf

2013 ◽  
Vol 13 (57) ◽  
pp. 7587-7606
Author(s):  
PC Adiukwu ◽  
◽  
FIB Kayanja ◽  
S Rugera ◽  
BJ Murokore ◽  
...  
Keyword(s):  
Aqueous Extract ◽  
Acetic Acid Solution ◽  
Tail Flick ◽  
Temperature Decrease ◽  
Vernonia Amygdalina ◽  
Hot Plate ◽  
Hot Plate Test ◽  
Tail Flick Test ◽  
Thermal Pain ◽  
Crude Saponin

Vernonia amygdalina is commonly used for food and health purposes. The processing of the leaf for food is usually aimed at removing bitter tasting principles like saponins. This study was designed to determine the antipyretic and antinociceptive properties of the aqueous extract, crude saponin and the chromatographic fraction of the crude saponin from the leaf. In the antipyretic evaluation, anal temperature change in fasted rats with prior induced pyrexia using intra-peritoneal administered 15% w/v Saccharomyces cerevisiae, was measured four hours after dose administration. In the antinociceptive evaluation, 0.6% acetic acid solution administered by intra peritoneal route at a dose of 15 ml/kg was used to induce writhing in the writhing test; hot plate at 55 °C ± 1 to induce thermal pain in the hot plate test; and cold mixture of water and ethylene glycol (1:1) maintained at -10 °C to initiate pain sensation in the cold tail flick tests. Antipyretic data showed significant (P ≤ 0.05) anal temperature decrease for all the test doses compared to the placebo. This was markedly observed with the aqueous extract at 0.55 oC ± 0.03 anal temperature decrease, compared to the 0.29 0C ± 0.01 of the crude saponin, at a similar dose level of 400 mg/kg. At 200 mg/kg dose, the crude saponin induced an anal temperature decrease of 0.14 0 C ± 0.02. This was higher than the response obtained with the chromatographic fraction which produced 0.06 0C ± 0.01 anal temperature decrease. Antinociceptive data was significant (P ≤ 0.05) for the crude saponin in the writhing (52.58 % antinociceptic effect) and hot plate tests (14.24 maximum percent analgesia), contrary to observation in the cold tail flick test. Findings showed the antipyretic and non-steroid like antinociceptive property of the crude saponin, which may support the rationale for the use of Vernonia amygdalina leaf to reduce fever and/or pain.

Effects of aloperine on acute and inflammatory pain models in mice

2015 ◽  
Vol 8 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Yang Yang ◽  
Shao-Ju Jin ◽  
Hong-Ling Wang ◽  
Yu-Xiang Li ◽  
Juan Du ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Inflammatory Pain ◽  
Tail Flick ◽  
Paw Edema ◽  
Hot Plate ◽  
Hot Plate Test ◽  
Tail Flick Test ◽  
Plate Test ◽  
Tnf Α ◽  
Anti Inflammatory

AbstractBackground and objectivesAloperine (ALO) is an alkaloid compound and presents in several medicinal plants. This study was undertaken to investigate the anti-nociceptive and anti-inflammatory activities of ALO on various chemical- and thermal-induced hypersensitivity models in mice.MethodsThe anti-nociceptive effect of ALO was evaluated using acetic acid-induced writhing test, hot plate test, tail flick test, formalin test, ear swelling test, locomotor activity test, rota-rod test and carrageenan-induced paw edema test in mice. Inflammatory cytokines including interleukin-10 (IL-10), tumor necrosis factor α (TNF-α), interleukin-1 beta (IL-1β) and prostaglandin E2 (PGE2) expression were examined in ALO- and vehicle-treated mice.ResultsThe results showed that ALO significantly attenuated acetic acid-induced writhing numbers in mice in a dose-dependent manner. ALO showed no effect on prolonging latency in the hot plate test and the tail-flick test. ALO showed analgesic activity in the inflammatory phase of formalin-induced pain. Its anti-inflammatory effect was also confirmed in the ear-swelling test. In the carrageenan-induced paw edema model, ALO significantly and dose-dependently reduced the carrageenan-induced paw edema, decreased the contents of TNF-α IL-1β and PGE2, but increased the IL-10 production. On the other hand, ALO showed no influence on the rota-rod performance time or on spontaneous locomotor activity.ConclusionIt is concluded that ALO has both anti-inflammatory and analgesic effects, especially in the field of inflammation pain.ImplicationsOur findings support the hypothesis that ALO ameliorates inflammatory pain induced by chemical and thermal stimuli and provides a scientific basis for the resource development and clinical use of aloperine.

Prenatal Pregabalin Exposure Alters Postnatal Pain Sensitivity and Some Behavioral Responses in Adult Offspring Rats

2020 ◽  
Vol 15 (3) ◽  
pp. 205-214
Author(s):  
Manzumeh-Shamsi Meymandi ◽  
Gholamreza Sepehri ◽  
Amirhossein Moslemizadeh ◽  
Seyyed Sajjad Vakili Shahrbabaki
Keyword(s):  
Locomotor Activity ◽  
Open Field ◽  
Prenatal Exposure ◽  
Pain Sensitivity ◽  
Sucrose Preference ◽  
Pain Response ◽  
Adult Offspring ◽  
Hot Plate ◽  
Hot Plate Test ◽  
Plate Test

Background: Prenatal antiepileptic drug exposure could demonstrate both congenital malformations and behavioral impairments in offspring. Objective: This study was performed to assess the effects of prenatal exposure to pregabalin (PGB) on pain response, anxiety, motor activity and some behavior of adult offspring rats. Methods: Pregnant Wistar rats received PGB (7.5, 15 and 30 mg/kg/ip) during embryonic days 9.5- 15.5. The pain response, anxiety-like behaviors, locomotor activity, motor balance and coordination and anhedonia of adult offspring were examined by tail-flick and hot plate test, open field test, elevated plus maze (EPM), beam balance test and sucrose preference test in their 60th day of life, respectively. Results: Prenatal exposure to PGB revealed significant dose-dependent reduction in pain sensitivity (increase in pain latency response) in the hot plate test, especially in females, while anxiety-like behavior assessed in EPM and open field significantly reduced in males. In the open field, locomotor activity reduced significantly after exposure to PGB 30 mg/kg and motor coordination decreased dose-dependently, especially in males. Anhedonia, as an indication of sucrose preference or pleasure response, was not changed. Conclusion: These findings suggest that prenatal PGB exposure could be associated with significant changes in pain response, anxiety, locomotor activity and coordination in adult offspring rats.

scholarly journals Anti-Inflammatory, Analgesic and Antipyretic Activity of Catunaregam spinosa (Thumb.) Tirveng Extracts

2019 ◽  
Vol 9 (5) ◽  
pp. 89-94
Author(s):  
Hansa Saini ◽  
Jayesh Dwivedi ◽  
Himanshu Paliwal ◽  
Udichi Kataria ◽  
Priyanka Chauhan ◽  
...  
Keyword(s):  
Ethanolic Extract ◽  
Pharmacological Properties ◽  
Phytochemical Screening ◽  
Hot Plate ◽  
Hot Plate Test ◽  
Egg Albumin ◽  
Antipyretic Activity ◽  
Ethanolic Extracts ◽  
Anti Inflammatory ◽  
Response Method

Catunaregam spinosa leaves have been ethnopharmacologically accounted for acquiring various pharmacological properties. The present study was undertaken to evaluate anti-inflammatory, analgesic and antipyretic potential of leaves of C. spinosa.The ethanolic extract was selected for this purpose based on phytochemical screening. Inflammation was inhibited at the dose of 200 mg/kg with percent inhibition of inflammation 32.06, 37.28 and 43.16 %, respectively, at 1, 3 and 5 h, while in egg albumin model % inhibition was found to be 47.81%. There was no significant analgesic activity seen in acetic acid induced writhing response method while significant effects were observed in the doses of 25 and 100 mg/kg on hot plate test. No antipyretic activity was shown by ethanolic extracts(25, 100 and 200 mg/kg) against Brewer’s yeast induced pyrexia in rats. Keywords: Catunaregam spinosa, Anti-inflammatory activity, Phytochemical screening, Ethanolic extract.

Phytochemical screening, safety evaluation, anti-inflammatory and analgesic studies of the leaf extracts of Sterculia tragacantha

2016 ◽  
Vol 13 (3) ◽  
Author(s):  
Olufunke M. Mogbojuri ◽  
Adeolu A. Adedapo ◽  
Matthew O. Abatan
Keyword(s):  
Ethyl Acetate ◽  
Toxicity Test ◽  
Safety Evaluation ◽  
Powdered Material ◽  
Tail Flick ◽  
Phytochemical Screening ◽  
Leaf Extracts ◽  
Tail Flick Test ◽  
Cell Counts ◽  
Anti Inflammatory

Abstract:: Fresh leaves of the plant were collected and dried at room temperature and pulverized into powder form and 200 g of this powder was dissolved first in hexane for 72 h and the extract was filtered and the filtrate was concentrated while the substrate was further dissolved in chloroform, ethyl acetate and methanol at different times and similar procedure adopted as for the hexane. The organic solvents were used based on order of increasing polarity. Graded concentrations of the solvent extracts were prepared and used for the study. Pilot toxicity test was carried out to determine safety dose using hematology and serum chemistry as indices of toxicity. Thereafter anti-inflammatory and analgesic studies were conducted using standard tests such as carrageenan, histamine-induced-edema, tail flick test and acetic writhing test. Phytochemical screening of the plant was also conducted.: Phytochemical screening of the powdered material showed that alkaloid, flavonoid and reducing sugar were present while tannin, cardiac glycosides, saponins and anthraquinones were absent. Pilot toxicity test using aqueous extract at 100 mg/mL concentration showed that no mortality was recorded although the animals that received 3,000 mg/kg dose exhibited slight dullness after 48 h. No significant changes were also observed for the packed cell volume, hemoglobin, white blood cell counts, platelet counts, alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, blood urea nitrogen, albumin, globulin except for the 200 and 3,000 mg/kg doses that caused significant increase in the level of total protein. The n-hexane, chloroform, ethyl acetate, and methanol extracts of: The different leaf extracts of

scholarly journals Evaluation of Analgesic Activity ofPapaver libanoticumExtract in Mice: Involvement of Opioids Receptors

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Mohamad Ali Hijazi ◽  
Ahmed El-Mallah ◽  
Maha Aboul-Ela ◽  
Abdalla Ellakany
Keyword(s):  
Opioid Receptors ◽  
Analgesic Activity ◽  
Time Course ◽  
Ethanolic Extract ◽  
Maximum Activity ◽  
Tail Flick ◽  
Endemic Plant ◽  
Hot Plate ◽  
The Central Nervous System ◽  
Opioid Withdrawal Syndrome

Papaver libanoticumis an endemic plant to Lebanese region (family Papaveraceae) that has not been investigated before. The present study aimed to explore the analgesic activity of dried ethanolic extract ofPapaver libanoticum(PLE) using tail flick, hot plate, and acetic acid induced writhing models in mice. The involvement of opioid receptors in the analgesic mechanism was investigated using naloxone antagonism. Results demonstrated that PLE exhibited a potent dose dependent analgesic activity in all tested models for analgesia. The analgesic effect involved activation of opioid receptors in the central nervous system, where both spinal and supraspinal components might be involved. The time course for analgesia revealed maximum activity after three hours in both tail flick and hot plate methods, which was prolonged to 24 hours. Metabolites of PLE could be responsible for activation of opioid receptors. The EC50 of PLE was 79 and 50 mg/kg in tail flick and hot plate tests, respectively. The total coverage of analgesia by PLE was double that of morphine in both tests. In conclusion, PLE proved to have opioid agonistic activity with a novel feature of slow and prolonged effect. The present study could add a potential tool in the armaments of opioid drugs as a natural potent analgesic and for treatment of opioid withdrawal syndrome.

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