scholarly journals Evaluation of hyperalgesic effect of sitagliptin in albino mice

Author(s):  
Lalit Mohan ◽  
Manoj Kumar ◽  
Manish Kumar ◽  
Saajid Hameed ◽  
Amritanshu Shekhar

Various studies have showed the increased incidence of joint pain with the use of DPP-4 inhibitors. There is also some evidence of increase in inflammatory mediators like substance P, SDF-1 and other cytokines with the inhibition of DPP-4 from some experimental studies. But this association is still unclear and DPP-4 inhibitor continue to be prescribed in inflammatory disorders. So, this study was planned to assess the development of hyperalgesia in albino mice with the use of sitagliptin.Sitagliptin dissolved in saline was administered in the doses of 10, 20, 30 mg/kg to Albino mice of either sex weighing 25-30 gm. Hyperalgesia was assessed in the mice with hot plate method and acetic acid induced writhing test. We found that reaction time of the mice receiving higher dose of Sitagliptin in hot plate method was lower than that of mice receiving lower doses or distilled water (P-Value <0.05). We also found that after injection of acetic acid, the number of writhing observed in the mice receiving higher dose of Sitagliptin was greater than that of mice receiving lower doses or distilled water (P-Value <0.05). Our findings show that in a cohort of mice receiving Sitagliptin and distilled water at baseline, there was significant association between dose of Sitagliptin and hyperalgesia. However, P-Value was greater than 0.01, but with these finding we can’t rule out this association and need for further prospective studies to assess the relationship between DPP-4 inhibitors and hyperalgesia.

2021 ◽  
Vol 9 (02) ◽  
pp. 50-55
Author(s):  
Chandrajeet Kumar Yadav ◽  
Poonam Tiwari ◽  
Roshan Mehta ◽  
Amit Kumar Shrivastava ◽  
Anjan Palikhey

INTRODUCTION: Pain has been described by the International Association for the Study of Pain as an unpleasant sensory and emotional experience associated with actual or potential tissue damage, or described in terms of such damage. Although NSAIDS and OPIOIDS are available for the treatment, still pain (chronic) is major problem. The present study was designed to study the analgesic effect of ethanolic extract of Coriandrum sativum using hot plate method and acetic acid induced writhing method in experimental animals (Swiss albino mice). MATERIAL AND METHODS:The analgesic effect of leaves and seeds of Coriandrum sativum was assessed using hot plate method and acetic acid induced writhing method in Swiss albino mice. The animals were treated with the ethanolic extract of leaves and seeds of Coriandrum sativum orally at two doses of 100, 500 mg/kg body weight after electric heat and acetic acid induced pain in mice. RESULTS: The study showed that ethanolic extract of leaves and seeds of Coriandrum sativum presented significant (p<0.05) and (p<0.05) analgesic activity in mice simultaneously. The data were analyzed by one-way ANOVA followed by Dunette's multiple comparison test. The results demonstrate that ethanolic extract of leaves and seeds of Coriandrum sativum has got analgesic potential. CONCLUSION: The results demonstrate that ethanolic extract of leaves and seeds of Coriandrum sativum has got significant analgesic effect.


2021 ◽  
Vol 23 (09) ◽  
pp. 1252-1262
Author(s):  
Srinivasan K ◽  
◽  
Sivakumar T ◽  
Kiruthiga N ◽  
Haja Sherief S ◽  
...  

Pain is likely the most common symptomatic complaint in medicine; an understanding of its mechanism is critical to interpret it. Nociception refers to the detection of noxious stimuli by nociceptors, followed by transduction and transmission of the sensory nervous information from the periphery to the brain. Plants have played a unique holistic role for the provision of food, drugs, clothing, shelter, etc. Natural compounds have been extensively explored for new drug discoveries. Indeed, plants have been used as medicines for more than 5000 years, as a source of antibiotics, antineoplastic, analgesics, cardioprotective, among others. About 70–90% of the population in developing countries continue to use ancient medicines based on plant extracts. Sida cordata popularly known as “bala” is regarded as a valuable drug in the Ayurvedic System of Indian Medicine. In order to validate the ethnomedical claim of Sida cordata as pain reliever, a study was conducted to evaluate the analgesic activity of ethanolic extract of Sida cordata whole plant in laboratory animals. For centrally mediated analgesic activity, eddy’s hot plate method was employed and Pentazocine was uses as reference control. For peripherally mediated analgesic activity, acetic acid induced writhing model was employed and Dicofenac was used as reference control. Sida cordata ethanolic extract was administered orally at the doses of 100 and 200 mg/kg. In eddy’s hot plate method, both the doses of Sida cordata significantly increased the reaction time compare to vehicle control. In acetic acid induced writhing test, both the doses of Sida cordata significantly reduced the number of writhing compare to vehicle control. In both the models, the effect produced by Sida cordata was comparable to that of respective reference control. The results obtained suggest that the ethanolic extract of Sida cordata has showed marked analgesic activity in experimental animal models and this strappingly supports the ethnopharmacological applications of the plant for the target activity.


2018 ◽  
Vol 17 (1) ◽  
pp. 37-41
Author(s):  
Priyanka Chakraborty ◽  
Nripendra Nath Bala ◽  
Sudipta Das

The aim of the the present study was to investigate the analgesic activity of methanolic extract of Arisaema tortuosum (MEAT) using acetic acid-induced writhing and hot plate methods. The hot plate method is useful in elucidating centrally mediated antinociceptive responses, while acetic acid-induced writhing is the chemically induced pain of peripheral origin. The MEAT was used at doses of 50, 100, 200 and 400 mg/kg body weight on swiss albino mice. The percentage inhibition of the abdominal constriction reflex increased dose dependently in case of acetic acid-induced pain and in the hot plate method model the extract at the dose of 400 mg/kg significantly increased the pain reaction time (PRT). These studies conclude that A. tortuosum (Wall.) Schott. tuber possesses analgesic activity in a dose dependent manner. In case of acetic acid-induced pain, the extract at the dose of 400 mg/kg body wt. showed 41.19% inhibition of writhing reflex. In case of hot plate method, after 60 minutes the PRT increased to 7.47 ± 0.05 seconds for the extract at the dose of 400 mg/kg body wt.Dhaka Univ. J. Pharm. Sci. 17(1): 37-41, 2018 (June)


2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Thankarajan Sajeesh ◽  
Thangaraj Parimelazhagan

The present study was aimed to evaluate the analgesic and anti-inflammatory properties ofCastanospermum australeand to profile phytochemicals by GC-MS. The ethanolic extracts were prepared by successive solvent extraction using Soxhlet apparatus. The analgesic activity was analyzed by hot plate method and acetic acid-induced writhing test whereas anti-inflammatory study was done by carrageenan induced paw oedema model. The acute toxicity study revealed that ethanol extracts of leaf and bark ofC. australewere safe even at a higher dose of 2000 mg/kg whereas ethanol extract of seed was toxic at the same dose. In both hot plate method (5.85 s) and acetic acid-induced writhing test (57%), the leaf ethanol extract exhibited significant analgesic activity (P<0.001) at a dose of 400 mg/kg. The anti-inflammatory activity of leaf extract was exhibited by the reduction in paw linear diameter by 64.76% at 400 mg/kg in carrageenan induced paw oedema. The GC-MS analysis of the ethanol extract of leaf revealed sixteen major compounds of which 1,7-dimethyl-4,10-dioxa-1,7-diazacyclododecane, (+)-N-methylephedrine, and permethylspermine were found to be pharmaceutically and the most important. These findings justify thatC. australecan be a valuable natural analgesic and anti-inflammatory source which seemed to provide potential phytotherapeutics against various ailments.


Author(s):  
Phulen Sarma ◽  
Daisy Phukan

Objective: The aim of our study was to compare the anti-nociceptive action of amitriptyline with fluoxetine and evaluation of their probable mechanism of anti-nociceptive action by observing their individual interactions with morphine, naloxone, yohimbine, and ondansetron.Methods: Albino mice weighing 25-35 grams were taken and divided into 12 groups. Group A-Control(distilled water), Group B-amitriptyline 20 mg/kg, Group C-fluoxetine 20 mg/kg, Group D-morphine 5 mg/kg, Group E-amitriptyline 20 mg/kg+ morphine 5 mg/kg, Group F-amitriptyline 20 mg/kg+ naloxone 3 mg/kg, Group G-amitriptyline 20 mg/kg+ yohimbine 2 mg/kg, Group H-amitriptyline 20 mg/kg+ ondansetron 0.1 mg/kg, Group I-fluoxetine 20 mg/kg+morphine 5 mg/kg, Group J-fluoxetine 20 mg/kg+ naloxone 3 mg/kg, Group K-fluoxetine 20 mg/kg+ yohimbine 2 mg/kg and Group L-fluoxetine 20 mg/kg+ ondansetron 0.1 mg/kg. Hot plate method and acetic acid writhing test were used to assess central and peripheral analgesic activity respectively.Results: Both the amitriptyline and fluoxetine-treated animals showed significantly increased reaction time in a hot plate (p<0.05) and a significant decrease in the number of wriths in acetic acid writhing test (p<0.05), when compared with control. Animals in amitriptyline group showed significantly higher reaction time and less number of wriths when compared to fluoxetine group. Morphine increased, while naloxone, yohimbine and ondansetron decreased the reaction time in a hot plate. In the acetic acid writhing test, a number of wriths significantly decreased when co-treated with morphine and increased when co-treated with naloxone, yohimbine and ondansetron.Conclusion: It is concluded that amitriptyline is a better antinociceptive agent than fluoxetine. Their central and peripheral mechanism of antinociception both involve opioidergic, serotonergic and noradrenergic pathway.


2010 ◽  
Vol 9 (3) ◽  
pp. 28
Author(s):  
Sh. M. Al-khazrji , and I. K. Khalil

The present study was aimed to investigate the analgesic effects of the aqueous extract of Artemisia herba alba Arial part in rats and mice ( AEAHA ). The AEAHA (400- 700 mg/kg; p.o.) was evaluated for its analgesic activity by employing acetic acid-induced writhing test, hot plate test and tail immersion tests i.e. in hot and cold water. AEAHA (400- 700 mg/kg; p.o.) showed significant (P<0.01) reduction in the number of writhing induced by acetic acid,increased reaction time in hot plate test and elevated pain threshold in hot and cold water tests. AEAHA exhibited the dose-dependent analgesic effects


Author(s):  
Adekunle T. Adegbuyi ◽  
Moses A. Akanmu ◽  
G. Olayiwola ◽  
Abayomi O. Sijuade

In the present study, we investigated the antinociceptive effects of the plant Vigna unguiculata spp dekindtiana using chemical and thermal tests in mice. The peripheral and the central analgesic activities of the methanol extract and its fractions were investigated in-vivo in albino mice using acetic acid induced-writhing test and hot plate models respectively. The result of the central analgesic effect showed that the methanol extract (VUME) at 400 mg/kg produced a significant (p<0.05) delay in reaction time in mice on hot plate compared to the control. Various fractions of the extract showed more potency compared to the crude extract. In acetic writhing model, the extract and the fractions demonstrated dose dependent reduction in writhing reaction induced by acetic acid in mice. The reduction was significant when compared to control which was suggestive of the analgesic effect of the plant. It was also seen that the extract and fractions showed an improved analgesic effect compared to diclofenac used as positive control in this model. Yohimbine (alpha adrenergic receptor antagonist) and cyproheptadine (serotonergic receptor antagonist) reversed the antinociceptic effect of the fractions in the hot plate model demonstrating the possibility of adrenergic and serotonergic involvement in eliciting the analgesic effect. Naloxone on the other hand, caused a reversal only in the butanol fraction meaning that this fraction may contain active principles that may mediate their analgesic effect through the opioid mechanism. In the writhing test, yohimbine abolished the analgesic effect of both hexane and butanol fractions. This may therefore, suggest that the analgesic effect of these fractions may be mediated through adrenergic pathway. In conclusion, the plant V. unguiculata subspecies dekindtiana possesses active principles with potential analgesic activity, establishing the folkloric use of the plant in managing pain.


2021 ◽  
Vol 15 (11) ◽  
pp. 2956-2957
Author(s):  
Gul Afshan ◽  
Ponum Mirani ◽  
Imtiaz Aslam ◽  
Sobia Ibrahim

Aim: Effects of available weight reducing drugs on the weights of a normal albino mice. Methodology: In this study, total 39 adult albino mice were used and were divided in three groups containing 13 animals in each. Group I served as control and was given 1 ml of distilled water once a day for 8 weeks. Group II and Group III served as experimental group and mice in these groups were given 0.5 mg of Slim Smart and Ultra Slim Plus drugs dissolved in 1 ml of distilled water respectively once a day for 8 weeks. To support these results weights of kidneys were also measured and relative tissue width index was calculated and compared with control group. Results: The weight of the animals increased in the experimental groups as compared to the control group. The overall difference for final weight among three groups was highly significant with p-value <0.01. When final weight compared group wise, the experimental groups had significantly higher weight as compared to control with p-values <0.01and 0.028 Conclusion: Both Ultra Slim Plus and Slim Smart drugs cause weight to increase in the individuals who are not obese and have BMI in normal range Keywords: Weight loss, Garcinia Cambodia, kidney, Albino mice


1983 ◽  
Vol 66 (5) ◽  
pp. 1112-1116
Author(s):  
John H Gould ◽  
Stephen W Butler ◽  
Edward A Steele

Abstract Oven and hot plate leach methods were compared with the official AOAC room temperature method for leaching Pb and Cd from specially glazed ceramic cookware. The hot leach methods released from 7 to 11 times more Pb and from 6 to 10 times more Cd after 24 h than did the AOAC procedure. Both hot leach methods specify a 2 h treatment with boiling 4% acetic acid, followed by 22 h of cooling at room temperature. The results show that essentially all of the Pb and Cd are released within 2 h, suggesting that the total contact time can be limited to 2 h to save laboratory space and time. The hot plate method is less difficult to perform and results in a continuous refluxing action. For these reasons, it is proposed as the hot leach method of choice.


2016 ◽  
Vol 5 (4) ◽  
pp. 38-40 ◽  
Author(s):  
Rubab Tarannum Islam ◽  
Ahmed Tanjimul Islam ◽  
Mir Monir Hossain ◽  
Kishor Mazumder

The sunflower seed is the seed of the sunflower (Helianthus annuus). The methanol extract of seeds of Helianthus annuus were screened for analgesic activity in mice model to systematically explore the medicinal values of the plant. Acetic acid induced writhing and hot plate methods were used to confirm the central and peripheral analgesic action. In case of acetic acid-induced writhing test the extract showed significant (P <0.05) analgesic potential at doses 100 and 200 mg/kg body weight (50.35 and 57.85% inhibition, respectively). In the hot plate method, increase (p < 0.05) of latency period was also observed in comparison to standard aspirin. At 60 minutes, the latency period of two different doses (100 and 200 mg/kg body weight) was found at 13 ± 0.91 and 16.5 ± 1.55 second. The results obtained support the use of Helianthus annuus seeds in painful conditions acting both centrally and peripherally.Islam et al., International Current Pharmaceutical Journal, March 2016, 5(4): 38-40http://www.icpjonline.com/documents/Vol5Issue4/02.pdf


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