Buprenorphine alleviation of pain does not compromise the rat monoarthritic pain model

2017 ◽  
Vol 16 (1) ◽  
pp. 167-167
Author(s):  
M.S. Berke ◽  
Klas S.P. Abelson
Keyword(s):  
Rat Model ◽  
Joint Stiffness ◽  
Positive Control ◽  
Negative Control ◽  
Pain Tolerance ◽  
Control Group ◽  
Mechanical Stimuli ◽  
Sprague Dawley ◽  
Sprague Dawley Rats ◽  
A Minor

Abstract Aims This study investigated the effects of buprenorphine treatment on pain and welfare parameters and model specific parameters in a rat model of monoarthritis to eliminate unnecessary pain from this model. Methods 32 male Sprague Dawley rats were divided into four groups: (1) A negative control without arthritis receiving no analgesia. (2) A positive monoarthritic control group receiving no analgesia, but subcutaneous saline injections twice a day. (3) A positive control with monoarthritis receiving subcutaneous carprofen once a day and saline once a day. (4) A group with monoarthritis receiving subcutaneous buprenorphine twice a day. Monoarthritis was induced with an injection of 0.02 ml Complete Freund’s Adjuvant intra-articularly in the left tibiotarsal joint. Treatment with analgesia was initiated at day 15 and the rats were euthanized at day 23. Results The induced monoarthritis elicited a pronounced acute inflammation. Several parameters such as bodyweight, mobility, stance, joint-stiffness and lameness scores were affected. A marked mechanical hyperalgesia in the tarsal area was observed by Electronic Von Frey testing, but no severe compromise of the animal welfare was seen at any time. Signs of chronic development began to appear from day 10 after the monoarthritic induction. No significant change in serum cytokines and faecal corticosterone measurements was found after administration of buprenorphine. A minor decrease in body weight was seen, and a higher pain tolerance to mechanical stimuli was observed, indicating pain alleviation. The histological examination confirmed monoarthritic development in all monoarthritic rats and revealed periarticular lesions suggesting diffusion of adjuvant from intra-articular injection site to the periphery. Conclusions The study demonstrated that buprenorphine has an analgesic effect in the adjuvant induced monoarthritic rat model, without obvious interference with the development of arthritis.

Ranitidine as an alcohol dehydrogenase inhibitor in acute methanol toxicity in rats

2009 ◽  
Vol 29 (2) ◽  
pp. 93-101 ◽  
Author(s):  
Amal A El-Bakary ◽  
Sahar A El-Dakrory ◽  
Sohayla M Attalla ◽  
Nawal A Hasanein ◽  
Hala A Malek
Keyword(s):  
Alcohol Dehydrogenase ◽  
High Performance ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Sprague Dawley ◽  
Blood Samples ◽  
Methanol Poisoning ◽  
Sprague Dawley Rats

Methanol poisoning is a hazardous intoxication characterized by visual impairment and formic acidemia. The therapy for methanol poisoning is alcohol dehydrogenase (ADH) inhibitors to prevent formate accumulation. Ranitidine has been considered to be an inhibitor of both gastric alcohol and hepatic aldehyde dehydrogenase enzymes. This study aimed at testing ranitidine as an antidote for methanol acute toxicity and comparing it with ethanol and 4-methyl pyrazole (4-MP). This study was conducted on 48 Sprague-Dawley rats, divided into 6 groups, with 8 rats in each group (one negative control group [C1], two positive control groups [C2, C3] and three test groups [1, 2 and 3]). C2, C3 and all test groups were exposed to nitrous oxide by inhalation, then, C3 group was given methanol (3 g/kg orally). The three test groups 1, 2 and 3 were given ethanol (0.5 g/kg orally), 4-MP (15 mg/kg intraperitoneally) and ranitidine (30 mg/kg intraperitoneally), respectively, 4 hours after giving methanol. Rats were sacrificed and heparinized, cardiac blood samples were collected for blood pH and bicarbonate. Non-heparinized blood samples were collected for formate levels by high performance liquid chromatography. Eye balls were enucleated for histological examination of the retina. Ranitidine corrected metabolic acidosis (p = .025), decreased formate levels (p = .014) and improved the histological findings in the retina induced by acute methanol toxicity.

scholarly journals THE ROLE OF VITAMIN E (α-TOCOPHEROL) ON TESTOSTERONE LEVEL IN SPRAGUE DAWLEY RATS FOLLOWING CISPLATIN TREATMENT

2019 ◽  
Vol 26 (1) ◽  
Author(s):  
Dian Kartika Rezia ◽  
Lukman Hakim ◽  
Wahjoe Djatisoesanto
Keyword(s):  
Vitamin E ◽  
Adult Male ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Sprague Dawley ◽  
Testosterone Levels ◽  
White Rats ◽  
Sprague Dawley Rats

Objective: To observe the difference of testosterone levels in adult male Sprague Dawley rats treated with combination of cisplatin and vitamin E compared to those treated with cisplatin only. Material & Methods: We used 24 adult male Sprague Dawley rats weight 200–300 grams and randomly assigned into 4 groups (n=6). Rats in negative control group (NC) were given intraperitoneal normal saline injection, while the positive control (PC) group were injected with cisplatin 5 mg/kgBW at the end of the 3rd week. Two other groups, P1 and P2, were injected with cisplatin 5 mg/kgBW and given vitamin E orally 50 mg/kgBW and 200 mg/kgBW, respectively. Cardiac blood was aspirated at the end of the 7th week and processed for analysis of testosterone levels. Results: We recorded a significantly lower testosterone levels in rats treated only with cisplatin 5 mg/kgBW (CP) compared to those in CN group (p=0.006), and those receiving combination of cisplatin and vitamin E 50 mg/kgBW (p=0.003) and 200 mg/kgBW (p=0.001). Though not significant, testosterone levels were higher in P2 group than in P1 group (p=0.702). Conclusion: Exposure to cisplatin can lower testosterone levels in white rats, and the administration of vitamin E gives protection against such effect. 

GASTRIC PROTECTION ABILITY OF SOME MEDICINAL MALAYSIAN PLANTS AGAINST ETHANOL INDUCTION MODEL IN SPRAGUE DAWLEY–RATS

2012 ◽  
Vol 57 (1) ◽  
Author(s):  
SUHAILAH WASMAN ◽  
MAHMOOD AMEEN ◽  
LEE SUAN CHUA ◽  
SALEHHUDDIN HAMDAN
Keyword(s):  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Sprague Dawley ◽  
Sprague Dawley Rats ◽  
Strobilanthes Crispus ◽  
Mucosal Layer ◽  
Polygonum Minus ◽  
Ethanol Extracts

Ethanol extracts of different traditional Malaysian plants (Polygonum minus, Andrographis paniculata, Curcuma xanthorrhiza,Momordica charantia and Strobilanthes crispus) were evaluated for their gastroprotective activities. In this experiment several groups of Sprague Dawley rats weighing 200–250gm were used. The first group was pre treated with (0.25% w/v) carboxymethyl cellulose (negative control, 5 ml/kg), the second group was pre treated with 20 mg/kg omeprazole (positive control) and the other groups were pretreated with the selected Malaysian medicinal plants in two different doses 250 and 500 mg/kg respectively. After 60 min all the rats were treated with 95% ethanol for ulcer induction. Rats were sacrificed 1 h after induction and the stomachs were analyzed for gross and histological changes. Negative control group showed extensive lesions of gastric mucosal layer, whereas rats pretreated with omeprazole and Malaysian plants showed significant and dose dependent reduction in gastric lesions. Amongst, the selected plants Polygonum minuspotentially promote better inhibition percentage of ulcer area. So that we can conclude that Polygonum minus could be the selective plant as an antiulcerogenic agent for the treatment of gastric ulcer.

scholarly journals Multi Floral Honey Has a Protective Effect against Mammary Cancer Induced by 7,12-Dimethylbenz(a)anthracene in Sprague Dawley Rats

2017 ◽  
Vol 9 (2) ◽  
pp. 196 ◽  
Author(s):  
Hamed R. Takruri ◽  
Maha S. Shomaf ◽  
Saida F. Shnaigat
Keyword(s):  
Protective Effect ◽  
Mammary Cancer ◽  
Histopathological Examination ◽  
Negative Control Group ◽  
Positive Control ◽  
Negative Control ◽  
Control Group ◽  
Light Cycle ◽  
Sprague Dawley ◽  
Dark Light

This research was conducted to study the protective effect of bee honey on the 7,12-dimethylbenz(a)anthracene (DMBA)- induced breast cancer in rat model. The study consisted of three groups: honey group, positive control group (PC), and negative control group (NC) to which the carcinogen was not administered. All rats were fed the diet recommended by the American Institute of Nutrition for growing rats (AIN-93G), with addition of honey (50 g/kg diet) to the honey group. All Rats were fed their diets ad libitum on 12 hours dark/light cycle. At the age of 50 days all rats in the honey and PC groups were gavaged once by the carcinogen DMBA with a dose of 80 mg/kg body Wt. After three weeks of carcinogen administration, rats were palpated weekly to detect any tumor growth. After 18 weeks, all rats were sacrificed. The palpable structures and the mammary glands along with associated lymph nodes were removed and fixed in saline formalin and prepared for histopathological examination. The results revealed that the honey group diet significantly (p < 0.05) reduced the incidence rate of mammary cancer, palpable tumor multiplicity, tumor size and weight compared to the PC group. In conclusion, multi floral honey has a protective effect against DMBA- induced mammary cancer in the initiation, promotion, and progression stages of DMBA-induced mammary carcinogenesis. However, further research is needed to reveal the mechanisms that might have contributed to the preventive effect of honey against mammary cancer.

scholarly journals PENGARUH SINBIOTIK KEFIR PISANG BATU TERHADAP KADAR KOLESTEROL-LDL DAN KOLESTEROL-HDL TIKUS MODEL SINDROM METABOLIK

2020 ◽  
Vol 7 (2) ◽  
pp. 280-288
Author(s):  
Dina Khoiriyah ◽  
Taufik Maryusman ◽  
Santi Herlina
Keyword(s):  
Risk Factors ◽  
Metabolic Syndrome ◽  
Ldl Cholesterol ◽  
Hdl Cholesterol ◽  
Positive Control ◽  
Negative Control ◽  
Sprague Dawley ◽  
Musa Balbisiana ◽  
Cholesterol Levels ◽  
Sprague Dawley Rats

Effect of Banana Kefir Synbiotic on LDL-Cholesterol and HDL-Cholesterol of Metabolic Syndrome Rats Metabolic syndrome (SM) is characterized by several risk factors including dyslipidemia. This study aims to analyze the effect of kefir synbiotic produced from banana stone flour (Musa balbisiana) on LDL-cholesterol and HDL-cholesterol of metabolic syndrome rat model. The 24 Sprague Dawley rats were divided into four groups, namely negative control (healthy rats fed standard feed), positive control (metabolic syndrome rats fed standard feed), treatment I and treatment II (metabolic syndrome rats each given synbiotic kefir banana stone flour 1.8 mL/200 g mouse BW/day and 3.6 mL/200 g mouse BW/day, respectively). The intervention was carried out for three weeks. After the intervention, the levels of LDL-cholesterol in treatment I and II experienced a decrease of 44.66% and 56.94%, respectively, while the-HDL-cholesterol levels in treatment I and II experienced an increase of 104.5% and 172.71%, respectively. The biggest change occurred in treatment II. Synbiotic kefir banana stone flour improved lipid profile in metabolic syndrome rats. Sindrom metabolik (SM) ditandai dengan beberapa faktor risiko termasuk dislipidemia. Penelitian ini bertujuan untuk menganalisis pengaruh sinbiotik kefir tepung pisang batu (Musa balbisiana) terhadap kadar kolesterol-LDL dan kolesterol-HDL tikus model SM. Subjek menggunakan 24 ekor tikus Sprague Dawley yang dibagi menjadi empat kelompok, yaitu kontrol negatif (tikus sehat yang diberi pakan standar), kontrol positif (tikus model SM yang diberi pakan standar), perlakuan I dan perlakuan II (tikus model SM yang masing-masing diberi sinbiotik kefir tepung pisang batu 1,8 mL/200 g BB tikus/hari dan 3,6 mL/200 g BB tikus/hari). Proses intervensi dilakukan selama tiga minggu. Setelah intervensi, kadar kolesterol-LDL perlakuan I dan II mengalami penurunan sebesar 44,66% dan 56,94%, sedangkan kadar kolesterol-HDL perlakuan I dan II mengalami peningkatan sebesar 104,5% dan 172,71%. Perubahan terbesar terjadi pada perlakuan II. Sinbiotik kefir tepung pisang batu memperbaiki profil lipid tikus sindrom metabolik.

scholarly journals Association between Chronic Acetaminophen Exposure and Allergic Rhinitis in a Rat Model

2015 ◽  
Vol 6 (3) ◽  
pp. ar.2015.6.0131 ◽  
Author(s):  
Nadieska Caballero ◽  
Kevin C. Welch ◽  
Patrick S. Carpenter ◽  
Swati Mehrotra ◽  
Tom F. O'Connell ◽  
...  
Keyword(s):  
Allergic Rhinitis ◽  
Mast Cells ◽  
Rat Model ◽  
Group Versus ◽  
Inferior Turbinate ◽  
Control Group ◽  
Sprague Dawley ◽  
Sprague Dawley Rats ◽  
Increased Risk ◽  
Hematoxylin And Eosin

Background Several population studies demonstrated an increased risk of allergic rhinitis in patients exposed to acetaminophen. However, no histologic studies have been conducted to assess the relationship between acetaminophen exposure and allergic rhinitis. Objective In this study, we investigated the association between chronic acetaminophen exposure and the development of allergic rhinitis in a rat model. Methods Ten female Sprague-Dawley rats were randomly assigned to either a control (n = 5) or an acetaminophen group (n = 5). The acetaminophen group received 200 mg/kg/day of acetaminophen suspended in yogurt via oral gavage for 120 days. The control group received only the yogurt vehicle. Allergic behavioral responses, including nose rub, eye rub, ear scratching, and neck and/or face scratching, were quantified. The rats were killed, and the noses were harvested. The portion of the nose, including the nasal septum and the inferior turbinates, was embedded in paraffin, sectioned, and stained with hematoxylin and eosin to quantify the inflammatory infiltrate. Results The average number of allergic responses per animal was 13.2 in the acetaminophen group versus 6.2 in the control group (p = 0.032). All the rats in the acetaminophen group (100%) had mast cells infiltrating the lamina propria of the inferior turbinate, whereas mast cells were detected in only 40% of the animals in the control group. The average number of mast cells per animal in the acetaminophen group was 134 versus 21 in the control group (p = 0.048). Conclusions Our study was the first to demonstrate a histologic association between chronic exposure to acetaminophen and rhinitis. Further research to elucidate the mechanism that underlies these findings is necessary.

scholarly journals Effect of Qingxin Kaiqiao Fang on Hippocampus mRNA Expression of the Inflammation-Related Genes IL-1β, GFAP, and Aβin an Alzheimer’s Disease Rat Model

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Dan-Dan Mao ◽  
Wen-Yu Yang ◽  
Yan Li ◽  
Jian-Wei Lin ◽  
Shi-Yu Gao ◽  
...  
Keyword(s):  
Rat Model ◽  
Particle Deposition ◽  
Therapeutic Potential ◽  
Interleukin 1 ◽  
Control Group ◽  
Model Group ◽  
Sprague Dawley ◽  
Amyloid A ◽  
Sprague Dawley Rats ◽  
High Doses

Objective. To investigate the effects of QKF on expression of amyloid-beta (Aβ), interleukin-1 beta (IL-1β), and glial fibrillary acidic protein (GFAP) using a rat model of AD.Materials and Methods. Fifty-six male Sprague-Dawley rats were randomly divided into seven groups (eight rats each): control group, sham-operated group, AD model group, groups of AD rats administered with low, medium, and high doses of QKF, and the donepezil group. AD was established by bilateral injection ofβ-amyloid (Aβ) 1–40 into the hippocampus. Two days after AD was established, drugs were administered by gavage. After 14 days of treatment, we used RT-PCR, Western blotting, and immunohistochemistry to measure the transcript expression and protein abundance of Aβ, IL-1β, and GFAP, and methenamine silver staining was used to detect amyloid protein particle deposition.Results. Compared to the control group, the rats from the AD model group showed significantly greater expression levels of Aβ, IL-1β, and GFAP. However, these differences in expression were abolished by treatment with QKF or donepezil.Conclusion. QKF possesses therapeutic potential against AD because it downregulated Aβ, IL-1β, and GFAP in the hippocampus of AD rats. Future studies should further examine the mechanisms through which QKF produces its effects and the consequences of long-term QKF administration.

scholarly journals The Effects of Trimetazidine and Sildenafil on Bilateral Cavernosal Nerve Injury Induced Oxidative Damage and Cavernosal Fibrosis in Rats

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Dogan Atilgan ◽  
Bekir S. Parlaktas ◽  
Nihat Uluocak ◽  
Fikret Erdemir ◽  
Fatma Markoc ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Oxidative Damage ◽  
Nerve Injury ◽  
Rat Model ◽  
Protein Carbonyl ◽  
Control Group ◽  
Sprague Dawley ◽  
Sprague Dawley Rats ◽  
Collagen Density ◽  
Cavernosal Nerve

Aim. The aim of this study was to compare the effects of sildenafil and trimetazidine on bilateral cavernosal nerve injury-induced oxidative damage and fibrotic changes in cavernosal tissue in rat model.Material and Methods. A total of 32 male Sprague-Dawley rats were randomly divided into 4 groups; each group consist 8 rats (control, BCI, BCI + TMZ, and BCI + sildenafil groups). Tissue superoxide dismutase (SOD), malondialdehyde (MDA), and protein carbonyl (PC) levels were determined biochemically and distribution of cavernosal fibrosis density among groups was performed histopathologically.Results. Tissue SOD levels in BCI group were significantly lower than the control group (P<0.05). Tissue MDA and PC levels in BCI group were significantly higher than the control group (P<0.05). TMZ and sildenafil administration significantly increased tissue SOD levels (P<0.05) and reduced tissue MDA and PC levels (P<0.05). Histologically, the degree of cavernosal fibrosis and collagen density was higher in BCI group in comparison to control, TMZ-treated, and sildenafil-treated groups.Conclusion. BCI caused oxidative damage and increased cavernosal fibrosis in rat penis. TMZ and sildenafil treatment decreased oxidative damage and reduced the degree of fibrosis in penile tissue due to BCI.

scholarly journals The Effect of Tempeh Gembus Variations to Serum Levels of High Sensitivity C-Reactive Protein (hsCRP) and Serum Levels of Fibrinogen of Sprague Dawley Rats with Aterogenic Diet

2018 ◽  
Vol 25 (1) ◽  
pp. 91-97 ◽  
Author(s):  
Partika Kharunia Dewi ◽  
Diana Nur Afifah ◽  
Ninik Rustanti ◽  
Mohammad Sulchan ◽  
Gemala Anjani
Keyword(s):  
Serum Levels ◽  
Negative Control Group ◽  
Positive Control ◽  
Atherogenic Diet ◽  
Negative Control ◽  
Positive Control Group ◽  
Control Group ◽  
Standard Diet ◽  
Sprague Dawley ◽  
Significant Difference

Abstract Background and aims: Cardiovascular diseases are widespread and causes many deaths in the world. The concentration of acute phase protein: C-reactive protein (CRP) and fibrinogen will rise dramatically when inflammation happens, which that can be used as an early marker of cardiovascular disease risk. Tempeh gembus contains fiber, unsaturated fatty acids and isoflavones are believed to reduce the inflammatory reaction. The aim of the study was to determinate the effect of tempeh gembus variations to levels of hcCRP and levels of fibrinogen of Sprague Dawley rats with atherogenic diet. Material and methods: This study was quasi-experimental with posttest only randomized control group design using 35 Sprague Dawley mice. The rats were randomized into 5 groups: negative control group given the standard diet, the positive control group given standard diet and atherogenic diet, and three treatment groups were given the standard diet, atherogenic diet and variation of tempeh gembus (tempeh gembus, heated tempeh gembus and tempeh gembus with bromelain enzyme) for 28 days. Serum levels of hsCRP and fibrinogen examined using ELISA (Enzyme-linked Immunosorbent Assay). Results and conclusions: The administration of tempeh gembus with bromelain enzyme is the most effective treatment for hsCRP serum level indicated a significant difference (p=0.028) between the negative control group, positive control group and first group with the third group. Fibrinogen serum levels showed significant differences in all treatment groups (p =0.042), administration of tempeh gembus with bromelain enzyme is the most effective treatment is shown by a significant difference between the negative control group and the positive control group with third group. The administration of tempeh gembus with bromelain enzyme for 28 days can reduce the serum levels of hsCRP and fibrinogen on rats significantly.

scholarly journals Evaluation of clinical, histology, TNF-α, and collagen expressions on oral ulcer in rats after treatment with areca nut and chrysanthemum oral gel

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 623
Author(s):  
Liza Meutia Sari ◽  
Zaki Mubarak ◽  
Dina Keumala Sari
Keyword(s):  
Triamcinolone Acetonide ◽  
Positive Control ◽  
Flowering Plant ◽  
Positive Control Group ◽  
Control Group ◽  
Areca Nut ◽  
Sprague Dawley ◽  
Control Groups ◽  
Sprague Dawley Rats ◽  
Tnf Α

Background: Areca nut (Areca catechu Linn.) is the seed of the fruit of the oriental palm that is commonly used among Southeast Asian communities. Chrysanthemum (Dendrathema grandiflora) is a flowering plant originating from East Asia and dominantly grows in China. Both of these plants have strong antioxidant activities. To investigate the mechanism of their wound healing activities, we prepared areca nut and chrysanthemum polyethylene oral gel and performed several in vivo assays using Sprague–Dawley rats. Methods: Sprague–Dawley rats were divided into five groups: Negative control group (rats with base gel treatment), positive control group (rats treated with triamcinolone acetonide), F1 (treatment with 20% areca nut:80% chrysanthemum), F2 (treatment with 50% areca nut:50% chrysanthemum), and F3 (treatment with 80% areca nut:20% chrysanthemum). Traumatic ulcers were performed on the buccal mucosa of all experimental animals that received topical oral gel and triamcinolone acetonide twice a day for seven days. The clinical and histological characteristics were analyzed and scored. Results: During the six days, the ulcerated area receded linearly over time and was completely cicatrized in F2 and positive control group (Dependent t-test, p<0.05). There were significant increases in body weight in F2 and positive control groups. There were no significant differences between groups in histology examination (Kruskal Wallis test, p<0.05). The moderate score of TNF-α levels was seen in F2 and positive control groups (ANOVA/Tukey test). Similar results were seen in the collagenases assay. Conclusions: A balanced combination of areca nut and chrysanthemum extract in the oral gel can optimize the healing of traumatic oral ulcers in rats through the increase of TNF-α and collagen deposition.

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