Evaluation of Methanol Extract of Argenome mexicana Aerial Part on Nociception, Inflammation and Gastrointestinal Motility

2020 ◽  
Vol 2 (2) ◽  
pp. 30-42
Author(s):  
A. M. Malami
Keyword(s):  
Acetic Acid ◽  
Gastrointestinal Motility ◽  
Early Phase ◽  
Methanol Extract ◽  
Late Phase ◽  
Antinociceptive Effect ◽  
Lethal Dose ◽  
Health Conditions ◽  
Dependent Manner ◽  
Dose Dependent

Argenome mexicana Linn. (Family: Papaveraceae) is traditionally used to relieve inflammatory and pain-related health conditions. It is also used as laxative. The intraperitoneal median lethal dose (LD50 ) of the methanol extract was determined in mice. The methanol extract of the plant was 50 evaluated for antinociceptive effect using acetic acid-induced writhing test in mice and formalin induced pain test in rats. Fresh egg albumin-induced oedema model was used to test for its antiinflammatory effect in rats while the gastrointestinal effect was tested using gastrointestinal motility (transit) model in mice. The intraperitoneal LD value in mice was calculated to be 894.4 50 mg/kg. The extract (75, 150 and 300 mg/kg i.p) significantly (p< 0.05) and dose-dependently inhibited acetic acid-induced pain with the values of 44.83%, 68.97% and 81.38% respectively. Acetyl salicylic acid (ASA; 150 mg/kg i.p) also significantly (p<0.05) inhibited pain with inhibitory value of 65.52%. The extract (75, 150 and 300 mg/kg i.p) significantly (p< 0.05) and dose-dependently inhibited the early phase of formalin-induced pain with values of 56.76%, 75.68% and 78.38% respectively. The extract at the same doses also inhibited the late phase of formalin-induced pain in a dose-dependent manner with the values of 39.51%, 55.56% and 74.08% respectively. The late phase inhibition was only significant (p<0.05) at the doses of 150 and 300 mg/kg i.p. The magnitude of pain inhibition by the extract was higher in the early phase. The extract (75, 150 and 300 mg/kg i.p) produced a dose-dependent inflammatory inhibition with percentages of 15.00 %, 25.00 % and 73.34% respectively. ASA (150 mg/kg i.p) produced 36.67% inhibition. The extract produced gastrointestinal movement inhibition of 54.70%, 55.47% and 73.32% respectively. The inhibition was significant (p < 0.005) only at 150 and 300 mg/kg i.p while atropine (0.1 mg/kg i.p) produced a significant (p < 0.05) inhibitory effect with percentage of 63.94%. The study provided scientific justification for the traditional use of A. mexicana in pain and inflammatory health conditions but did not justify its use as a laxative.

scholarly journals Evaluation of antinociceptive and antipyretic effect of Pupalia lappacea Juss

2013 ◽  
Vol 2 (2) ◽  
pp. 23-28 ◽  
Author(s):  
Vajrala Neeharika ◽  
Humaira Fatima ◽  
Bommineni Madhava Reddy
Keyword(s):  
Acetic Acid ◽  
Antinociceptive Effect ◽  
Ethanolic Extract ◽  
Pharmaceutical Journal ◽  
Dependent Manner ◽  
Hot Plate ◽  
Hot Plate Test ◽  
Antipyretic Activity ◽  
Cns Depressant ◽  
Dose Dependent

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

scholarly journals Peripheral Analgesic and Anti-diarrheal Activities of Leaf of Syzygium cumini (L.) Skeel

2019 ◽  
Vol 22 (1) ◽  
pp. 13-17
Author(s):  
Md Shahidulla Kayser ◽  
Rubel Nath ◽  
Halima Khatun ◽  
Mohammad A Rashid
Keyword(s):  
Acetic Acid ◽  
Methanol Extract ◽  
Folk Medicine ◽  
Pharmaceutical Journal ◽  
Dependent Manner ◽  
Syzygium Cumini ◽  
Mice Model ◽  
Medicinal Value ◽  
First Time ◽  
Dose Dependent

Syzygium cumini has been used in folk medicine to treat many diseases. To establish the potential medicinal value of leaves of S. cumini, the current study was carried out to assess the peripheral analgesic and anti-diarrheal activities in mice model. The crude methanol extract and its petroleum ether and chloroform soluble fraction were administered to the experimental mice at a dose of 200- and 400- mg/kg b.w. (denoted as CME1, CME2, PESF1, PESF2, CLSF1 and CLSF2 respectively) using acetic acid induced writhing method and castrol oil induced anti-diarrheal assay protocol. The extract and its Kupchan fractions exhibited significant (p < 0.001) reduction of writhing response in a dose dependent manner. In the acetic acid-induced writhing test, the activity decreased in the order diclofenac (75.33%) > PESF2 (70.33%) > CME2 (67.00%) > PESF1 (64.00%) > CLSF2 (61.33%) > CME1 (56.67%) >CLSF1 (48.67%). All the fractions significantly (p < 0.001) attenuated anti-diarrheal effect in a dose dependent manner with the highest activity observed by CME2 (47.73%) as compared to standard lopeiramide (54.55%). The results of our study, being reported for the first time, provide reasonable indication that the methanol extract of S. cumini leaf and its different fractions possess peripheral analgesic and antidiarrheal activities. Bangladesh Pharmaceutical Journal 22(1): 13-17, 2019

Ecological and physiological as well as biochemical properties of representatives of the Genus sedum L.

2014 ◽  
Vol 25 (3-4) ◽  
pp. 24-33
Author(s):  
O. I. Dzjuba ◽  
M. V. Yatsenko
Keyword(s):  
Nitric Oxide ◽  
Cell Line ◽  
Methanol Extract ◽  
Hepatoma Cell ◽  
Ethanol Extract ◽  
Biochemical Properties ◽  
Biologically Active ◽  
Hepatoma Cell Line ◽  
Dependent Manner ◽  
Dose Dependent

The article deals with the history of the study and the current state of research of physiological and biochemical properties of the plant genus Sedum that are useful for human and has been used in folk medicine for many years. It was noticed that antioxidant properties of extracts from plants S. sarmentosum, S. sempervivoides, S. takesimense were caused by the presence of phenolic compounds. Methanol extract of plants S. takesimense exhibited strong scavenging activities against 2,2-diphenyl-1-picrylhydrazyl (DPPH) and superoxide radicals as well as significant inhibitory effects on lipid peroxidation and low density lipoprotein (LDL) oxidation induced by a metal ion Cu2+. Various immunomodulatory activities of various fractions of plants extracts (S. dendroideum, S. kamtschaticum, S. sarmentosum, S. telephium) are observed. It was shown that the ethanol extract of S. sarmentosum and it’s fractions suppressed specific antibody and cellular responses to ovalbumin in mice. The methanol extract of plants S. sarmentosum reduced the levels of anti-inflammatory markers, such as volume of exudates, number of polymorphonuclear leukocytes, suppressed nitric oxide synthesis in activated macrophages via suppressed induction of inducible nitric oxide synthase (iNOS). Polysaccharides fractions from plants S. telephium inducing productions of tumor necrosis factor alpha (TNF-α), increasing the intensity of phagocytosis in vitro and in vivo. Methanol extract from the whole part of S. kamtschaticum strongly inhibit PGE2 production from lipopolysaccharide-induced RAW 264.7 cells, a mouse macrophage cell line via modulating activity in gene expression of the enzyme cyclooxygenase-2 (COX-2). The methanol extract of plants S. sarmentosum and the major kaempferol glycosides from S. dendroideum have antinociceptive activity. It was noticed that anti-adipogenic activity of extracts from plants S. kamtschaticum were caused by inhibition of peroxisome-proliferator-activated receptor γ (PPARγ) expression and it’s dependent target genes, such as genes encoding adipocyte protein 2 (аР2), lipoprotein lipase (LPL), adiponectin and CD36. Polysaccharides fractions from S. telephium cause inhibition of cell adhesion of human fibroblast (MRC5) to laminin and fibronectin via interfere with integrin-mediated cell behaviour and they contributed to the role of polysaccharides in cell-matrix interaction. The methanol extract of plants S. sarmentosum exhibited a significant inhibitory activity in the chick embryo chorioallantoic membrane angiogenesis in a dose-dependent manner. The crude alkaloid fraction of S. sarmentosum caused a dose-dependent inhibition of cell proliferation on murine hepatoma cell line BNL CL.2 and human hepatoma cell line HepG2 without necrosis or apoptosis. Alkaloids from plants S. sarmentosum may improve survival of hepatoma patients via the inhibition of excessive growth of tumor cells. Plant’s juices have antiviral activity (S. sarmentosum, S. spurium, S. stahlii). Crude ethanol extract S. praealtum have spermicidal activity of the in mice and a relevant inhibitory effect of aqueous extract on human spermatozoa motility as well as an anti-fertilizing activity in rats. Hepatoprotective triterpenes, e.g., δ-amyrone, 3-epi-δ-amyrin, δ-amyrin and sarmentolin were isolated from S. sarmentosum. 2- and 2,6-substituted piperidine alkaloids (e.g., norsedamine, allosedridine, sedamine, allosedamine) are observed in plants S. acre, which in the presence of data on the use of pyridine and piperidine derivatives for treating neurodegenerative diseases (e.g., Alzheimer's disease), points on the promising research in this area. Taking into account that biologically active compounds are accumulated in the aboveground vegetative organs of plants of Sedum, the prospects of further study of the use of Sedum for the purposes of biotechnology and in the pharmaceutical industry becomes apparent. This work extends the existing views regarding the use of plants Sedum.

scholarly journals Evaluation of Analgesic and Anti-inflammatory Activities of Polyalthia simiarum (Hook. F. &Thomson)

2019 ◽  
Vol 5 (1) ◽  
pp. 18-23
Author(s):  
Selina Kabir ◽  
Ronok Zahan ◽  
Abdullah Mohammad Sarwaruddin Chowdhury ◽  
Choudhury Mahmood Hasan ◽  
Mohammad Abdur Rashid
Keyword(s):  
Acetic Acid ◽  
Analgesic Activity ◽  
Biological Activities ◽  
Dependent Manner ◽  
Paw Edema ◽  
Immersion Method ◽  
Ongoing Research ◽  
Tail Immersion ◽  
Anti Inflammatory ◽  
Dose Dependent

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

scholarly journals Evaluation of analgesic, neuropharmacological and cytotoxic activity of Trigonella foenum-graecum Linn.

1970 ◽  
Vol 1 (1) ◽  
pp. 6-11
Author(s):  
Moli Akter ◽  
Mirola Afroze ◽  
Ambia Khatun
Keyword(s):  
Acetic Acid ◽  
Brine Shrimp ◽  
Dependent Manner ◽  
Immersion Method ◽  
Standard Drug ◽  
Writhing Test ◽  
Trigonella Foenum Graecum ◽  
Vincristine Sulphate ◽  
Tail Immersion ◽  
Dose Dependent

The present study was carried out to investigate the possible analgesic, neuropharmacological and cytotoxic activities of the methanolic extract of Trigonella foenum-graecum Linn. leaves. The analgesic and neuropharmacological activities of Trigonella foenum-graecum Linn. were investigated at the doses of 100mg/kg, 200mg/kg and 400mg/kg of body weight in mice. Analgesic potential of the extract was evaluated for centrally acting analgesic property using tail immersion method and peripheral analgesic actions using acetic acid-induced writhing test. In acetic acid-induced writhing test, extract produced a significant (p < 0.001) inhibition of writhing response in a dose dependent manner but maximum inhibition (93.46%) of writhing was found at 400mg/kg dose. In tail immersion method, extract caused a significant (p < 0.001) increase in latency time and the results were comparable to the standard drug Diclofenac- Sodium. In addition, neuropharmacological property of crude extract was carried out by Hole cross and Open field test. The extract significantly (p < 0.05-0.001) displayed a dose dependent suppression of motor activity, exploratory behaviour. Furthermore, the extract was subjected to Brine Shrimp lethality bioassay for primary evaluation of cytotoxicity, where the extract was found to be highly toxic to Brine Shrimp nauplii, having LC50 values of 10μg/ml while the LC50 of the reference anticancer drug vincristine sulphate was 0.66μg/ml. The results of this present study suggest that the extract possesses analgesic, cytotoxic and CNS depressant activities. Key Words: Trigonella foenum-graecum Linn.; cytotoxicity; neuropharmacological; analgesic activity. DOI: http://dx.doi.org/10.3329/icpj.v1i1.9218 International Current Pharmaceutical Journal 2011, 1(1): 6-11

Modulation of Pacemaker Activity by Salmon Gonadotropin-Releasing Hormone (sGnRH) in Terminal Nerve (TN)-GnRH Neurons

2000 ◽  
Vol 83 (5) ◽  
pp. 3196-3200 ◽  
Author(s):  
Hideki Abe ◽  
Yoshitaka Oka
Keyword(s):  
Late Phase ◽  
Gonadotropin Releasing Hormone ◽  
Pacemaker Activity ◽  
Dependent Manner ◽  
Releasing Hormone ◽  
Terminal Nerve ◽  
Bath Application ◽  
Gnrh Neurons ◽  
G Protein Coupled ◽  
Dose Dependent

The terminal nerve (TN)-gonadotropin-releasing hormone (GnRH) neurons project widely in the brain instead of the pituitary and show endogenous pacemaker activity that is dependent on the physiological conditions of the animal. We suggest that the TN-GnRH system may act as a putative neuromodulator that is involved in the regulation of many long-lasting changes in the animal's behavior. In the present study, we find that the pacemaker activity of TN-GnRH neurons is modulated by salmon GnRH (sGnRH), which is the same molecular species of GnRH peptide produced by TN-GnRH neurons themselves. Bath application of sGnRH (2–200 nM) transiently decreased (early phase) and then subsequently increased (late phase) the frequency of pacemaker activity of TN-GnRH neurons in a dose-dependent manner. These biphasic changes of pacemaker activities were suppressed by intracellular application of guanosin 5′-0-(2-thiodi-phosphate) (GDP-β-S). The results suggest that G-protein coupled receptors are present on the cell surface and play a triggering role in modulating the frequency of pacemaker activities in TN-GnRH neurons. Because the TN-GnRH neurons make tight cell clusters with no intervening glial cells, it may be further suggested that GnRH released from GnRH neurons regulates the activities of their own (autocrine) and/or neighboring GnRH neurons (paracrine).

scholarly journals Antinociceptive and Anti-edematous Activities of the Essential Oils of Two Balkan EndemicLaserpitium Species

2014 ◽  
Vol 9 (1) ◽  
pp. 1934578X1400900 ◽  
Author(s):  
Višnja Popović ◽  
Silvana Petrović ◽  
Maja Tomić ◽  
Radica Stepanović-Petrović ◽  
Ana Micov ◽  
...  
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Antinociceptive Effect ◽  
Dependent Manner ◽  
Paw Edema ◽  
Oral Gavage ◽  
Inflammatory Conditions ◽  
Pressure Test ◽  
Male Wistar Rats ◽  
Dose Dependent

In this paper antinociceptive and anti-edematous effects are examined of the essential oils of the underground parts of two Balkan endemic Laserpitium species (Apiaceae), L. zernyi and L. ochridanum. Furthermore, the essential oil of the underground parts of L. ochridanum is chemically characterised by GC and GC-MS. Antinociceptive and anti-edematous effects were measured in a rat model of localized inflammation, induced by carrageenan, using apparatus for the modified paw-pressure test, and plethysmometer, respectively. The effects of both Laserpitium essential oils were measured after oral gavage administration to male Wistar rats in doses of 25, 50 and 100 mg/kg. The main constituents of L. ochridanum essential oil were: α-pinene (33.2%), α-bisabolol (10.3%) and chamazulene (14.9%). The essential oil of L. zernyi was previously shown to be rich in α-pinene (31.6%) and α-bisabolol (30.9%). Both examined essential oils produced a significant dose-dependent antinociceptive effect. The corresponding ED50±SEM in producing antinociception were 45.9±4.9 mg/kg and 42.4±2.1 mg/kg for L. zernyi and L. ochridanum oil, respectively. Both essential oils also significantly reduced paw edema in a dose-dependent manner. The estimated ED50±SEM values for the anti-edematous effect were 36.3±4.5 mg/kg for L. zernyi oil and 45.1±11.3 mg/kg for L. ochridanum oil. These results suggest that the essential oils of both investigated Laserpitium species may be effective against pain and edema present in various inflammatory conditions.

Analgesic and Anti-Inflammatory Activities of the Methanol Extract ofElaeagnus oldhamiiMaxim. in Mice

2012 ◽  
Vol 40 (03) ◽  
pp. 581-597 ◽  
Author(s):  
Chi-Ren Liao ◽  
Yuan-Shiun Chang ◽  
Wen-Huang Peng ◽  
Shang-Chih Lai ◽  
Yu-Ling Ho
Keyword(s):  
Acetic Acid ◽  
Formalin Test ◽  
Methanol Extract ◽  
Antioxidant Activities ◽  
Late Phase ◽  
Paw Edema ◽  
Hplc Fingerprint ◽  
Tnf Α ◽  
Cox 2 ◽  
Anti Inflammatory

We investigated possible mechanisms of analgesic and anti-inflammatory activities of the methanol extract from the leaf of Elaeagnus oldhamii Maxim. (EOMeOH). EOMeOHwas evaluated for its analgesic activity in acetic acid-induced writhing response and formalin test, and anti-inflammatory effect was examined by λ-carrageenan-induced paw edema assay. We detected the activities of GPx, GRd and SOD in the liver, and the levels of inflammatory mediators including IL-1β, IL-6, TNF-α, COX-2, MDA and NO in the edema paw to investigate the mechanism of action against inflammation. Total polyphenol, flavonoid and flavanol contents of EOMeOHwere detected to explore its antioxidant activities. Results showed that, in the analgesic test, EOMeOHdecreased acetic acid-induced writhing response and the licking time in the late phase of formalin test. In the anti-inflammatory test, EOMeOHdecreased paw edema at the 2nd, 3rd, 4th and 5th h after λ-carrageenan had been injected. EOMeOHincreased the activities of SOD and GPx in liver tissue and decreased MDA, NO, IL-1β, IL-6, TNF-α and COX-2 levels in paw edema tissue at the 3rd h after λ-carrageenan-induced inflammatory reaction. EOMeOHexhibited abundant polyphenol, flavonoid and flavanol contents. In HPLC fingerprint test of EOMeOH, two index ingredients, ursolic acid and pomolic acid, were isolated from EOMeOHand were exhibited in HPLC chromatographic analysis. The results demonstrated analgesic and anti-inflammatory effects of EOMeOH. It was indicated that the anti-inflammatory mechanism of EOMeOHmay be due to declined levels of NO and MDA in the edema paw through increasing the activities of SOD, GPx and GRd in the liver. Additionally, EOMeOHdecreased IL-1β, IL-6, TNF-α and COX-2 levels in the edema paw. The results suggested its value in future development of herbal medicine for the treatment of inflammatory diseases.

scholarly journals Antioxidant And Antibacterial Activity Of Methanolic Extract Of Machilus Odoratissima

1970 ◽  
Vol 8 (1) ◽  
pp. 73-80 ◽  
Author(s):  
Amit Subedi ◽  
Mohan Prasad Amatya ◽  
Tirtha Maiya Shrestha ◽  
Shyam Kumar Mishra ◽  
Bharat Mani Pokhrel
Keyword(s):  
Antibacterial Activity ◽  
Methanol Extract ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Antibacterial Properties ◽  
Dependent Manner ◽  
Scavenging Activity ◽  
Deoxy Sugar ◽  
Radical Method ◽  
Dose Dependent

The methanol extract of the bark of Machilus odoratissima was subjected to investigate its antioxidant and antibacterial properties. The phytochemical screening demonstrated the presence of different types of compound like terpenoids, tannins, deoxy sugar, saponins and phenolic compounds. The methanol extract of the plant was tested for antioxidant activity using scavenging activity of DPPH(1,1-diphenyl-2-picrylhydrazil) radical method and antibacterial activity against Staphylococcus aureus, Enterococcus faecalis, Escherichia coli & Pseudomonas aeruginosa bacteria using cup plate method. The extract exhibited high free radical scavenging activity. IC50 was found to be 3.37μg/ml. Antibacterial activity was observed against S. aureus in dose dependent manner DOI: http://dx.doi.org/10.3126/kuset.v8i1.6045 KUSET 2012; 8(1): 73-80

scholarly journals The Anti-Nociceptive Potential of Tulathromycin against Chemically and Thermally Induced Pain in Mice

Pharmaceutics ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1247
Author(s):  
Mohamed Elbadawy ◽  
Amira Abugomaa ◽  
Hussein M. El-Husseiny ◽  
Ahmed S. Mandour ◽  
Mohamed M. Abdel-Daim ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Acute Pain ◽  
Symptomatic Relief ◽  
Late Phase ◽  
Control Group ◽  
Tail Flick ◽  
Nociceptive Response ◽  
Hot Plate ◽  
Significant Prolongation ◽  
Dose Dependent

The present study was conducted to evaluate the analgesic potential of the new triamilide macrolide antibiotic, tulathromycin, at 20 and 40 mg/kg of body weight (BW), subcutaneously against acute pain in mice. Acute pain was induced either chemically (using acetic acid-induced writhing and formalin-induced pain tests) or thermally (using hot-plate, and tail-flick tests). In the acetic acid-induced writhing test, tulathromycin induced a dose-dependent and significant decrease in the number of writhes compared with the control group. In the late phase of the formalin test, a significant decline in hind paw licking time compared with the control group was observed. In the hot-plate and tail-flick tests, tulathromycin caused a dose-dependent and significant prolongation of latency of nociceptive response to heat stimuli, compared with the control group. These findings may indicate that tulathromycin possesses significant peripheral and central analgesic potentials that may be valuable in symptomatic relief of pain, in addition to its well-established antibacterial effect.

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