Effect of Irradiation and Gentamycin on the Course of Experimental Peritonitis

1985 ◽  
Vol 1 (S1) ◽  
pp. 186-188
Author(s):  
T. Orlowski ◽  
S. Chabielski ◽  
A. Badowski ◽  
Z. Dumanski
Keyword(s):  
Surgical Treatment ◽  
Ionizing Radiation ◽  
Wistar Rats ◽  
Radiation Sickness ◽  
Simultaneous Action ◽  
Diffuse Peritonitis ◽  
Abdominal Organs ◽  
Male Wistar Rats ◽  
Group 2 ◽  
Group 1

The pathology of mixed injuries resulting from simultaneous action of several damaging factors on the organism is still insufficiently known. Peritonitis is the most frequent complication of injuries to the abdominal organs. Co-existence of peritonitis with radiation sickness impairs considerably the results of therapeutic management and prognosis. Surgical treatment is indicated in the latent period of radiation sickness or only in the period of recovery. In the case of diffuse peritonitis, the time of performing the operation is of essential importance for the prognosis. Thepurposeof the reportedinvestigationswas the study of the effect of ionizing radiation before exposure of the organism on the course of diffuse peritonitis and a trial of prolonging with an antibiotic the preliminary stage of the disease in which surgical treatment is effective. Investigations were carried out on 160 male Wistar rats weighing 250g on the average, divided into five groups. Group 1 served as control. In Group 2, the rats were only exposed to radiation.

scholarly journals Plasma as an indicator of bone fluoride levels in rats chronically exposed to fluoride

2006 ◽  
Vol 14 (4) ◽  
pp. 238-241 ◽  
Author(s):  
Juliane Guimarães de Carvalho ◽  
Rodrigo Cardoso de Oliveira ◽  
Marília Afonso Rabelo Buzalaf
Keyword(s):  
Wistar Rats ◽  
Direct Method ◽  
Facilitated Diffusion ◽  
Bone Surface ◽  
Male Wistar Rats ◽  
Group 3 ◽  
The Difference ◽  
Group 2 ◽  
Exposure Methods ◽  
Group 1

OBJECTIVE: This study evaluated the use of plasma, bone surface (periosteal) and whole bone as biomarkers of chronic fluoride (F) exposure. METHODS: Forty male Wistar rats were assigned to 4 groups (n=10/gr) that differed according to the F concentration they received in the drinking water. Groups 1, 2, 3 and 4 received water containing 0 (control), 5, 15, and 50 mg F/L, respectively. The rats were killed at 120 days of age. Plasma and femur were collected and analyzed for fluoride with the ion specific electrode by the direct method or after hexamethyldisiloxane-facilitated diffusion. Data were tested for statistically significant differences by ANOVA and linear regression (p<0.05). RESULTS: Mean (± SE) plasma F concentrations ranged from 0.030 ± 0.002 to 0.187 ± 0.013 (mg/mL). The concentrations in surface and whole bone ranged from 610 ± 32 to 4,693 222; and 647 ± 22 to 3,439 ± 134 µg/g, respectively. The surface/whole F concentration ratios were 0.941, 1.414, 1.173 and 1.377, for groups 1, 2, 3 and 4 respectively. For plasma and whole bone, the difference among all groups was statistically significant, except for group 2 compared to group 1. For bone surface, all groups differed from each other except for group 2 compared to group 3. A significant positive correlation was found between bone surface and whole bone F (r²=0.94), as well as between plasma and bone surface (r²=0.71) and plasma and whole bone (r²=0.74). CONCLUSIONS: Data suggest that both bone surface and whole bone are suitable biomarkers of chronic F exposure in rats and plasma may be used as indicator of bone fluoride levels.

scholarly journals Chemoprevention by celecoxib in reflux-induced gastric adenocarcinoma in Wistar rats that underwent gastrojejunostomy

2009 ◽  
Vol 24 (3) ◽  
pp. 189-194 ◽  
Author(s):  
Frederico Theobaldo Ramos Rocha ◽  
Laercio Gomes Lourenço ◽  
Mário Jorge Jucá ◽  
Valéria Costa ◽  
Antenor Teixeira Leal
Keyword(s):  
Gastric Adenocarcinoma ◽  
Wistar Rats ◽  
Exploratory Laparotomy ◽  
Gastric Body ◽  
Gastrojejunal Anastomosis ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Laparotomy Group ◽  
Group 2 ◽  
Group 1

PURPOSE: To evaluate chemoprevention by celecoxib in cases of reflux-induced gastric adenocarcinoma, in Wistar rats that underwent gastrojejunostomy. METHODS: Sixty male Wistar rats of average age three months underwent surgery and were distributed into three groups: group 1, exploratory laparotomy; group 2, gastrojejunostomy; and group 3, gastrojejunostomy and daily celecoxib administration. After 53 weeks, the animals were sacrificed. Changes in the mucosa of the gastric body of group 1 and in the gastrojejunal anastomosis of groups 2 and 3, observed in histopathological and immunohistochemical examinations, were compared. All statistical analyses were performed using Epi-Info®, version 3.4.3. RESULTS: Comparison between groups 2 and 3 relative to the presence of adenocarcinoma showed a statistically significant difference (p=0.0023). Analysis of the association between groups 2 and 3 relative to COX-2 expression also showed a statistically significant difference (p=0.0018). CONCLUSION: Celecoxib had an inhibiting effect on gastric carcinogenesis induced by enterogastric reflux in an animal model.

scholarly journals Shrimp diet and skin healing strength in rats

2007 ◽  
Vol 20 (3) ◽  
pp. 257-263 ◽  
Author(s):  
Elizabeth Lage Borges ◽  
Fernanda Kelley Silva Pereira ◽  
Jacqueline Isaura Alvarez-Leite ◽  
Luiz Ronaldo Alberti ◽  
Mônica Alves Neves Diniz Ferreira ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Wistar Rats ◽  
Skin Incision ◽  
Control Group ◽  
Dorsal Skin ◽  
Interrupted Suture ◽  
Male Wistar Rats ◽  
Group 2 ◽  
Skin Healing ◽  
Group 1

OBJECTIVE: Surgical scar tensile strength may be influenced by several factors such as drugs, hormones and diet. The purpose of the present study was to determine the influence of a shrimp-enriched diet on the tensile strength of rat scars. METHODS: Forty male Wistar rats were submitted to a 4 cm dorsal skin incision and the wounds were sutured with 5-0 nylon interrupted suture. The animals were divided into two groups: Group 1 (control) received a regular diet, and Group 2 (experimental) received a shrimp-enriched diet. The two diets contained the same amounts of proteins, lipids and carbohydrates. The rats in each group were divided into two subgroups according to the time of assessment of the scar tensile strength: subgroup A, studied on the 5th postoperative day, and subgroup B, studied on the 21st postoperative day. RESULTS: The tensile strength of the scar on the 5th postoperative day was lower in the animals that received the shrimp-enriched-diet (303.0, standard error of mean= 34.1) than in the control group (460.1, SEM = 56.7) (p<0.05). CONCLUSION: A shrimp diet reduces the tensile strength of the scar. The next step of this study will be to clarify the mechanism in which shrimp affects tensile strength.

scholarly journals Pharmacokinetic Interactions between Concomitantly Administered Phenytoin with Rivaroxaban

2018 ◽  
Vol 10 (05) ◽  
Author(s):  
Y. Karnakar Reddy ◽  
T. Ramamohan Reddy
Keyword(s):  
Wistar Rats ◽  
Elimination Rate ◽  
Pharmacokinetic Parameters ◽  
Pharmacokinetic Interactions ◽  
Significant Difference ◽  
Cyp3a4 Inducer ◽  
Male Wistar Rats ◽  
Group 3 ◽  
Group 2 ◽  
Group 1

In the present investigation it was aimed to evaluate any possible pharmacokinetic interactions between Phenytoin and Rivaroxaban. Study was conducted in Male Wistar rats; animals were divided into three groups. Group 1 received Phenytoin alone, Group 2 received Rivaroxaban alone and Group 3 received Phenytoin and Rivaroxaban concomitantly. The treatment was given for 8 days and the blood samples were collected on day 1 and day 8. The samples were analyzed by HPLC. The results were showed no significant difference in the Pharmacokinetic parameters of Phenytoin in presence of Rivaroxaban. Whereas Rivaroxaban showed significant decrease in both Cmax and tmax in combination with Phenytoin. Phenytoin is a combined-gp inducer and strong CYP3A4 inducer therefore it may induce the metabolism of Rivaroxaban so it reduces the concentrations and increase the elimination rate. Based on the results obtained from pharmacokinetic study it was evident that the single dose of Rivaroxaban in combination with Phenytoin shows statistically significant interactions in its pharmacokinetic parameters.

scholarly journals Comparison between polypropylene and polypropylene with poliglecaprone meshes on intraperitoneal adhesion formation

2016 ◽  
Vol 43 (6) ◽  
pp. 416-423 ◽  
Author(s):  
MARIA DE LOURDES PESSOLE BIONDO-SIMÕES ◽  
WAGNER AUGUSTO SCHIEL ◽  
MAYARA ARANTES ◽  
TATIANE DA SILVEIRA ◽  
ROGÉRIO RIBEIRO ROBES ◽  
...  
Keyword(s):  
Polypropylene Mesh ◽  
Wistar Rats ◽  
Adhesion Formation ◽  
The Other ◽  
Whitney Test ◽  
Mann Whitney Test ◽  
Male Wistar Rats ◽  
Group 2 ◽  
Level Of Significance ◽  
Group 1

ABSTRACT Objective: to compare intraperitoneal adhesion formation in rats when using polypropylene and polypropylene with poliglecaprone meshes. Methods: we used twenty male, Wistar rats, divided in two groups. In group 1, the rats received the polypropylene mesh on their right side and the polypropylene with poliglecaprone mesh on their left side. In group 2 the position of the meshes was inverted. After 30 days, we analyzed the presence or not of adhesion formation, including only those over the meshes. The findings undergone an analysis through the Mann-Whitney test, at a level of significance of p≤0.05. Results: all meshes presented adhesions. We verified that, for the polypropylene meshes, the percentage of their surface covered by adhesions varied from 10.5 to 100%, with an average of 34.07±24.21%, while for the polypropylene with poliglecaprone mesh, the percentage covered by adhesions varied between 8.5% and 100%, with an average of 44.7±32.85% (p=0.12). Conclusion: both meshes lead to adhesion formation, none being superior to the other.

scholarly journals Subtotal laparoscopic splenectomy in rats with preservation of the inferior pole

2011 ◽  
Vol 26 (1) ◽  
pp. 44-50 ◽  
Author(s):  
José Jorge da Silva ◽  
Alcino Lázaro da Silva ◽  
Danilo Nagib Salomão Paulo
Keyword(s):  
Laparoscopic Splenectomy ◽  
Wistar Rats ◽  
Average Weight ◽  
Inferior Pole ◽  
Weight Percentage ◽  
Superior Part ◽  
Male Wistar Rats ◽  
Group 2 ◽  
Subtotal Splenectomy ◽  
Group 1

Purpose: To evaluate the feasibility and safety of subtotal splenectomy by laparoscopy with inferior pole preservation and to determine the viability of the splenic remnant. Methods: Twenty male Wistar rats weighing between 365 g and 474 g (mean 417.92 ± 36.15g SD) were operated and randomly assigned to two groups : Group 1 rats were killed on postoperative day 10 (n = 10), and Group 2 on the postoperative day 80 (n = 10). Both the inferior splenic pole and the superior part of the spleen, which was used as a control to measure inferior pole viability, were weighed and morphologically examined. Results: The technique was feasible in all cases. There were two postoperative deaths on immediate postoperative and one not well defined. The average weight percentage of the inferior pole, measured indirectly on the 10th day, was 53.67% ± 11.59% and on the 80th day was 62.69% ± 6.89%. The inferior pole was necrotic, with abscess formation in one case (5.9%) and appeared normal in all other cases. Microscopy showed features that were compatible with normality. Conclusions: Subtotal splenectomy with preservation of the inferior pole by laparoscopy was feasible and safety. The lower splenic pole was viable in 94.1% of animals.

scholarly journals Absence of mutagenic effect of Mikania glomerata hydroalcoholic extract on adult wistar rats in vivo

2006 ◽  
Vol 49 (4) ◽  
pp. 599-604 ◽  
Author(s):  
Rita de Cássia da Silveira e Sá ◽  
Magda Narciso Leite ◽  
Vera Maria Peters ◽  
Martha de Oliveira Guerra ◽  
Reinaldo Nóbrega de Almeida
Keyword(s):  
Wistar Rats ◽  
Mutagenic Effect ◽  
Corpora Lutea ◽  
Hydroalcoholic Extract ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Group 2 ◽  
Mikania Glomerata ◽  
Group 1

This work makes an assessment of the dominant lethality of Mikania glomerata in male Wistar rats. Adult male received 1 mL of M. glomerata hydroalcoholic extract at a dose level of 3.3 g/kg body weight for 52 days and were mated with untreated females for seven weeks (group 1) or one week prior to the beginning of treatment and on the week following the end of treatment (group 2). The parameters analyzed were: number of implanted embryos, resorptions and corpora lutea; mating, gestation, preimplantation loss, implantation and resorption indexes (group 1); number of offspring and weaning animals (group 2). The administration of M. glomerata did not show any impairment of fertility and no significant difference in the parameters analyzed, suggesting an absence of mutagenic effect on Wistar rats.

​Evaluation of Terminalia arjuna in Comparison to Taurine against Experimental Nephrotoxicity due to Cisplatin in Rats

2021 ◽  
Author(s):  
K. Sneha ◽  
A. Gopala Reddy ◽  
M. Usha Rani ◽  
B. Ramya ◽  
P. Shiva Kumar ◽  
...  
Keyword(s):  
Wistar Rats ◽  
Terminalia Arjuna ◽  
Kidney Function Tests ◽  
Histological Changes ◽  
Male Wistar Rats ◽  
Aqueous Leaf Extract ◽  
Nephroprotective Activity ◽  
Group 2 ◽  
Histopathological Studies ◽  
Group 1

Background: Cisplatin is one of the most remarkable solutions in ‘the war on cancer’. Although cisplatin has been a mainstay for cancer therapy, its use is mainly limited by nephrotoxicity. The current study was aimed to evaluate the ameliorative potential of Terminalia arjuna (TA) in comparison to taurine against cisplatin toxicity. Methods: A total of 36 male Wistar rats were divided into 6 groups of 6 rats in each. Group 1 was normal control. Cisplatin @ 5 mg/kg b.wt was injected on day 1 to groups 2, 5 and 6. Aqueous leaf extract of Terminalia arjuna was administered orally @ 400 mg/kg b. wt to groups 3, 5 and Groups 4, 6 recieved taurine orally @ 1000 mg/kg b.wt for 14 days. Blood samples were collected from animals to assess Kidney function tests, oxidative stress and cytokines and renal tissues were examined for histological changes, if any. Result: Antioxidant profile, serobiochemical and cytokine parameters were significantly (P less than 0.05) increased and histopathological studies revealed degenerative changes and marked infiltration in the kidney of group 2 when compared to groups 1, 3 and 4. However, These changes were reversed in groups 5 and 6 that were administered with Terminalia arjuna and taurine, respectively. In conclusion, the results of the present investigation elucidated that both Terminalia arjuna and taurine have potent nephroprotective activity in cisplatin injected Wistar rats.

scholarly journals Neuropsychological development of children with biliary atresia after liver transplantation

2021 ◽  
Vol 23 (3) ◽  
pp. 66-72
Author(s):  
A. V. Syrkina ◽  
I. E. Pashkova ◽  
A. R. Monakhov ◽  
O. V. Silina ◽  
E. V. Chekletsova ◽  
...  
Keyword(s):  
Liver Transplantation ◽  
Surgical Treatment ◽  
Biliary Atresia ◽  
Psychomotor Development ◽  
Two Stage ◽  
Neuropsychological Development ◽  
One Stage ◽  
The Difference ◽  
Group 2 ◽  
Group 1

Background. In young children, the most common liver disease leading to transplantation is biliary atresia. Liver transplantation has fundamentally improved the survival rate of children with biliary atresia. Studies on developmental outcomes in children are mostly limited to small samples; there are no such studies in the Russian Federation.Objective: to determine the cognitive outcomes in children undergoing one-stage or two-stage surgical treatment of biliary atresia.Materials and Methods. 83 children were divided into groups: 36 children underwent transplantation without previous surgical interventions (group 1), 47 children underwent the Kasai palliative portoenterostomy (group 2). Inclusion criteria: 24 months of age or younger at the moment of transplantation, no medical history of neurological pathology. All children were examined before transplantation and at 1, 3, 6 and 12 months after liver transplantation. Psychomotor development was assessed using the Griffiths Psychomotor Development Scale for children under 24 months (translated by E.S. Keshishian), the Griffiths Intellectual Development Scale for children aged 2 to 8 years, and the Modified Checklist for Autism in Toddlers, Revised, for children 16-30 months old.Results. All children had developmental delays at the time of transplantation. Up to 50% of the children had signs of cachexia, with a shoulder circumference of less than 3 percentile. Only two children showed obvious hepatic encephalopathy in the form of depressed consciousness. After liver transplantation, 94% of group 1 children recovered their preoperative psychomotor development levels, and only 68% in group 2 made these gains. At 3 and 6 months after transplantation, about 80% of group 1 children showed normal psychomotor development, whereas in group 2, only 61% did. By 12 months after liver transplantation, the difference between the groups was more evident: 83.3% of group 1 children and only 53.2% of group 2 children were developing according to age. The difference between the groups was statistically significant (p < 0.05).Conclusion. Children who received one-stage treatment of biliary atresia and underwent liver transplantation have better neuropsychological development within a year after surgery than children with two-stage surgical treatment.

scholarly journals Can We Use the Silodosin as Second Line Treatment of Benign Prostate Hyperplasia?

2021 ◽  
Author(s):  
Bekir Voyvoda ◽  
Onur Memik ◽  
Onur Karslı ◽  
Murat Üstüner ◽  
Levent Özcan
Keyword(s):  
Surgical Treatment ◽  
Symptom Relief ◽  
Routine Practice ◽  
Prostate Hyperplasia ◽  
Blocker Therapy ◽  
Alpha Blocker ◽  
The Third ◽  
Voiding Symptoms ◽  
Group 2 ◽  
Group 1

Objective: We aimed to investigate the efficacy of silodosin in patients with lower urinary tract symptoms (LUTS) caused by benign prostatic hyperplasia (BPH) refractory to previous α-adrenergic receptor (AR) blocker therapy. Materials and Methods: Patients who did not benefit from alpha-blocker therapy but avoided surgical treatment constitute the population of our study. Seventy-five patients were studied in each group; Group 1 was given 8 mg of silodosin, while Group 2 continued the previous alpha-blocker treatment. Results: The initial mean international prostate symptom score (IPSS) was calculated as 20.81±0.97 in Group 1, in the third month there was a decrease of 17.12±1.25 (p<0.05). No significant change was observed in Group 2. In addition, a significant decrease was observed in IPSS subscores (storage and voiding symptoms) in Group 1 compared to baseline at the third month. There was an improvement in residual urine in the silodosin group and no improvement in the other group. Conclusion: In patients with BPH who refuse surgical treatment and could not achieve adequate symptom relief with other α-blockers in routine practice, silodosin was found superior in terms of LUTS recovery. Silodosin is also an effective option in patients who cannot undergo surgical treatment due to comorbidities.

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