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1.
Acta Cir Bras ; 34(10): e201901002, 2019.
Article in English | MEDLINE | ID: mdl-31826148

ABSTRACT

PURPOSE: To evaluate the effect of garlic on formation of postoperative adhesions in rats. METHODS: Twenty-four Sprague dawley rats were divided into three groups. In Group 1 (sham), laparotomy was performed and stitched up. In Group 2 (control), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and 2 cc of saline was intraperitoneally administered to each rat. In Group 3 (experimental), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered a sterile Allium sativum derivative. The rats in all groups were re-laparotomized on postoperative day 7; samples were obtained from the peritoneal tissue surrounding the cecum. RESULTS: In Group 3, there was a statistically significant difference in terms of inflammation, lymph node size, and free oxygen radicals; these parameters tended to increase. In terms of fibrosis evaluated using H&E and MT, there was no significant difference between groups 2 and 3. CONCLUSIONS: No positive outcomes indicating that Allium sativum reduces intra-abdominal adhesions were obtained. However, it caused severe inflammation in the tissue. Additionally, in immunohistochemical analyses conducted to detect oxidative stress, allium sativum increased the production of free oxygen radicals in the tissue.


Subject(s)
Garlic/chemistry , Peritoneal Diseases/prevention & control , Animals , Fibrosis , Free Radicals/analysis , Immunohistochemistry , Laparotomy , Lymph Nodes/drug effects , Lymph Nodes/pathology , Oxidative Stress/drug effects , Peritoneal Diseases/pathology , Postoperative Complications/pathology , Postoperative Complications/prevention & control , Rats, Sprague-Dawley , Reproducibility of Results , Tissue Adhesions/pathology , Tissue Adhesions/prevention & control
2.
Acta cir. bras ; Acta cir. bras;34(10): e201901002, Oct. 2019. tab, graf
Article in English | LILACS | ID: biblio-1054669

ABSTRACT

Abstract Purpose: To evaluate the effect of garlic on formation of postoperative adhesions in rats. Methods: Twenty-four Sprague dawley rats were divided into three groups. In Group 1 (sham), laparotomy was performed and stitched up. In Group 2 (control), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and 2 cc of saline was intraperitoneally administered to each rat. In Group 3 (experimental), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered a sterile Allium sativum derivative. The rats in all groups were re-laparotomized on postoperative day 7; samples were obtained from the peritoneal tissue surrounding the cecum Results: In Group 3, there was a statistically significant difference in terms of inflammation, lymph node size, and free oxygen radicals; these parameters tended to increase. In terms of fibrosis evaluated using H&E and MT, there was no significant difference between groups 2 and 3. Conclusions: No positive outcomes indicating that Allium sativum reduces intra-abdominal adhesions were obtained. However, it caused severe inflammation in the tissue. Additionally, in immunohistochemical analyses conducted to detect oxidative stress, allium sativum increased the production of free oxygen radicals in the tissue.


Subject(s)
Animals , Peritoneal Diseases/prevention & control , Garlic/chemistry , Peritoneal Diseases/pathology , Postoperative Complications/pathology , Postoperative Complications/prevention & control , Fibrosis , Immunohistochemistry , Tissue Adhesions/pathology , Tissue Adhesions/prevention & control , Reproducibility of Results , Rats, Sprague-Dawley , Oxidative Stress/drug effects , Free Radicals/analysis , Laparotomy , Lymph Nodes/drug effects , Lymph Nodes/pathology
5.
Acta cir. bras. ; 34(10): e201901002, 2019. ilus, tab
Article in English | VETINDEX | ID: vti-24059

ABSTRACT

Purpose:To evaluate the effect of garlic on formation of postoperative adhesions in rats.Methods:Twenty-four Sprague dawley rats were divided into three groups. In Group 1 (sham), laparotomy was performed and stitched up. In Group 2 (control), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and 2 cc of saline was intraperitoneally administered to each rat. In Group 3 (experimental), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered a sterile Allium sativum derivative. The rats in all groups were re-laparotomized on postoperative day 7; samples were obtained from the peritoneal tissue surrounding the cecumResults:In Group 3, there was a statistically significant difference in terms of inflammation, lymph node size, and free oxygen radicals; these parameters tended to increase. In terms of fibrosis evaluated using H&E and MT, there was no significant difference between groups 2 and 3.Conclusions:No positive outcomes indicating that Allium sativum reduces intra-abdominal adhesions were obtained. However, it caused severe inflammation in the tissue. Additionally, in immunohistochemical analyses conducted to detect oxidative stress, allium sativum increased the production of free oxygen radicals in the tissue.(AU)


Subject(s)
Animals , Rats , Garlic , Tissue Adhesions/therapy , Tissue Adhesions/veterinary , Peritoneum/surgery , Lymphadenopathy/veterinary , Free Radicals
8.
Acta Cir Bras ; 33(2): 134-143, 2018 Feb.
Article in English | MEDLINE | ID: mdl-29513812

ABSTRACT

PURPOSE: To investigate the effects of pycnogenol on peritoneal adhesions and additionally to investigate the immunohistochemical effects of free oxygen radicals and reactive lymph nodes detected in the adhesive tissue that was sampled surrounding the cecum on intra-abdominal adhesions. METHODS: Twenty-seven Wistar Albino rats were divided into three groups. In group 1 (sham), laparotomy was performed and stitched up. In group 2 (control), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered 2 cc of saline. In group 3 (experimental), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered a sterile Pycnogenol derivative. The rats in all groups were re-laparotomized on postoperative day 7; samples were obtained from the peritoneal tissue surrounding the cecum, and the rats were sacrificed. RESULTS: In group 3, there was a statistically significant difference in terms of inflammation, lymph node size, and free oxygen radicals; these parameters tended to increase. In terms of fibrosis evaluated using H&E and MT, there was no significant difference between groups 2 and 3. CONCLUSIONS: No positive outcomes indicating that pycnogenol reduces intra-abdominal adhesions were obtained. However, it caused severe inflammation in the tissue. Moreover, a significant increase in lymph node size was detected secondary to inflammation. Additionally, in immunohistochemical analyses conducted to detect oxidative stress, pycnogenol increased the production of free oxygen radicals in the tissue.


Subject(s)
Flavonoids/therapeutic use , Lymph Nodes/drug effects , Peritoneal Diseases/prevention & control , Peritoneum/surgery , Tissue Adhesions/prevention & control , Animals , Anti-Inflammatory Agents/therapeutic use , Antioxidants/therapeutic use , Disease Models, Animal , Flavonoids/adverse effects , Free Radicals/analysis , Immunohistochemistry , Inflammation/chemically induced , Inflammation/pathology , Laparotomy , Lymph Nodes/pathology , Oxidative Stress/drug effects , Peritoneal Diseases/etiology , Peritoneum/pathology , Plant Extracts , Postoperative Complications , Rats , Rats, Wistar , Reactive Oxygen Species/metabolism , Tissue Adhesions/etiology , Tissue Adhesions/pathology
9.
Acta cir. bras. ; 33(2): 134-143, fev. 2018. ilus, tab
Article in English | VETINDEX | ID: vti-18348

ABSTRACT

Purpose: To investigate the effects of pycnogenol on peritoneal adhesions and additionally to investigate the immunohistochemical effects of free oxygen radicals and reactive lymph nodes detected in the adhesive tissue that was sampled surrounding the cecum on intra-abdominal adhesions. Methods: Twenty-seven Wistar Albino rats were divided into three groups. In group 1 (sham), laparotomy was performed and stitched up. In group 2 (control), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered 2 cc of saline. In group 3 (experimental), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered a sterile Pycnogenol derivative. The rats in all groups were re-laparotomized on postoperative day 7; samples were obtained from the peritoneal tissue surrounding the cecum, and the rats were sacrificed. Results: In group 3, there was a statistically significant difference in terms of inflammation, lymph node size, and free oxygen radicals; these parameters tended to increase. In terms of fibrosis evaluated using H&E and MT, there was no significant difference between groups 2 and 3. Conclusions: No positive outcomes indicating that pycnogenol reduces intra-abdominal adhesions were obtained. However, it caused severe inflammation in the tissue. Moreover, a significant increase in lymph node size was detected secondary to inflammation. Additionally, in immunohistochemical analyses conducted to detect oxidative stress, pycnogenol increased the production of free oxygen radicals in the tissue.(AU)


Subject(s)
Animals , Rats , Pinus , Plant Extracts/adverse effects , Plant Extracts/therapeutic use , Peritoneum/pathology , Postoperative Complications/drug therapy , Tissue Adhesions/drug therapy , Lymphadenopathy/etiology , Oxidative Stress , Phytotherapy , Disease Models, Animal , Rats, Wistar
10.
Acta cir. bras ; Acta cir. bras;33(2): 134-143, Feb. 2018. tab, graf
Article in English | LILACS | ID: biblio-886257

ABSTRACT

Abstract Purpose: To investigate the effects of pycnogenol on peritoneal adhesions and additionally to investigate the immunohistochemical effects of free oxygen radicals and reactive lymph nodes detected in the adhesive tissue that was sampled surrounding the cecum on intra-abdominal adhesions. Methods: Twenty-seven Wistar Albino rats were divided into three groups. In group 1 (sham), laparotomy was performed and stitched up. In group 2 (control), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered 2 cc of saline. In group 3 (experimental), after laparotomy was performed, punctate hemorrhage was induced by cecal abrasion in the cecum and each rat was intraperitoneally administered a sterile Pycnogenol derivative. The rats in all groups were re-laparotomized on postoperative day 7; samples were obtained from the peritoneal tissue surrounding the cecum, and the rats were sacrificed. Results: In group 3, there was a statistically significant difference in terms of inflammation, lymph node size, and free oxygen radicals; these parameters tended to increase. In terms of fibrosis evaluated using H&E and MT, there was no significant difference between groups 2 and 3. Conclusions: No positive outcomes indicating that pycnogenol reduces intra-abdominal adhesions were obtained. However, it caused severe inflammation in the tissue. Moreover, a significant increase in lymph node size was detected secondary to inflammation. Additionally, in immunohistochemical analyses conducted to detect oxidative stress, pycnogenol increased the production of free oxygen radicals in the tissue.


Subject(s)
Animals , Rats , Peritoneal Diseases/prevention & control , Peritoneum/surgery , Flavonoids/therapeutic use , Tissue Adhesions/prevention & control , Peritoneal Diseases/etiology , Peritoneum/pathology , Postoperative Complications , Flavonoids/adverse effects , Immunohistochemistry , Plant Extracts , Tissue Adhesions/etiology , Tissue Adhesions/pathology , Reactive Oxygen Species/metabolism , Rats, Wistar , Oxidative Stress/drug effects , Disease Models, Animal , Free Radicals/analysis , Inflammation/chemically induced , Inflammation/pathology , Laparotomy , Lymph Nodes/drug effects , Lymph Nodes/pathology , Anti-Inflammatory Agents/therapeutic use , Antioxidants/therapeutic use
13.
Acta Cir Bras ; 31(9): 615-620, 2016 Sep.
Article in English | MEDLINE | ID: mdl-27737347

ABSTRACT

PURPOSE:: To evaluate histopathologically the radioprotective effect of L-carnitine on the colonic mucosa in rats undergoing abdominopelvic irradiation. METHODS:: Thirty-two rats were randomly assigned to four experimental groups: intraperitoneal administration of normal saline (group 1) or L-carnitine (300 mL/kg; group 2), followed in groups 3 and 4, respectively, by one dose of abdominopelvic radiation (20 Gy) 30 min later. Rats were sacrificed 5 days after radiation, and their descending colons were resected for histopathological evaluation of the presence and severity of damage. RESULTS:: Average damage scores did not differ significantly between groups 1 and 2 (0.13 ± 0.35 and 0.25 ± 0.46, respectively); the group 3 score was highest (10.25 ± 0.71), and the group 4 score (3.63 ± 1.41) was significantly lower than that of group 3 (both p = 0.0001). Pre-radiation L-carnitine administration significantly reduced mucosal thinning, crypt distortion, reactive atypia, inflammation, cryptitis, and reactive lymph-node hyperplasia (all p < 0.01). CONCLUSIONS:: L-carnitine had a radioprotective effect on rat colonic mucosa. L-carnitine use should be explored for patients with gastrointestinal cancer, who have reduced serum L-carnitine levels.


Subject(s)
Carnitine/pharmacology , Colitis/prevention & control , Colon/drug effects , Intestinal Mucosa/drug effects , Radiation Injuries, Experimental/drug therapy , Radiation-Protective Agents/pharmacology , Animals , Colitis/chemically induced , Colon/pathology , Disease Models, Animal , Female , Intestinal Mucosa/pathology , Radiation Protection , Random Allocation , Rats
14.
Acta cir. bras ; Acta cir. bras;31(9): 615-620, Sept. 2016. tab, graf
Article in English | LILACS | ID: lil-795991

ABSTRACT

ABSTRACT PURPOSE: To evaluate histopathologically the radioprotective effect of L-carnitine on the colonic mucosa in rats undergoing abdominopelvic irradiation. METHODS: Thirty-two rats were randomly assigned to four experimental groups: intraperitoneal administration of normal saline (group 1) or L-carnitine (300 mL/kg; group 2), followed in groups 3 and 4, respectively, by one dose of abdominopelvic radiation (20 Gy) 30 min later. Rats were sacrificed 5 days after radiation, and their descending colons were resected for histopathological evaluation of the presence and severity of damage. RESULTS: Average damage scores did not differ significantly between groups 1 and 2 (0.13 ± 0.35 and 0.25 ± 0.46, respectively); the group 3 score was highest (10.25 ± 0.71), and the group 4 score (3.63 ± 1.41) was significantly lower than that of group 3 (both p = 0.0001). Pre-radiation L-carnitine administration significantly reduced mucosal thinning, crypt distortion, reactive atypia, inflammation, cryptitis, and reactive lymph-node hyperplasia (all p < 0.01). CONCLUSIONS: L-carnitine had a radioprotective effect on rat colonic mucosa. L-carnitine use should be explored for patients with gastrointestinal cancer, who have reduced serum L-carnitine levels.


Subject(s)
Animals , Female , Rats , Radiation Injuries, Experimental/drug therapy , Radiation-Protective Agents/pharmacology , Carnitine/pharmacology , Colitis , Colitis/prevention & control , Intestinal Mucosa/drug effects , Radiation Protection , Random Allocation , Colitis/chemically induced , Colitis/pathology , Disease Models, Animal , Intestinal Mucosa/pathology
15.
Acta cir. bras. ; 31(9): 615-620, Sept. 2016. ilus
Article in English | VETINDEX | ID: vti-20936

ABSTRACT

PURPOSE: To evaluate histopathologically the radioprotective effect of L-carnitine on the colonic mucosa in rats undergoing abdominopelvic irradiation. METHODS: Thirty-two rats were randomly assigned to four experimental groups: intraperitoneal administration of normal saline (group 1) or L-carnitine (300 mL/kg; group 2), followed in groups 3 and 4, respectively, by one dose of abdominopelvic radiation (20 Gy) 30 min later. Rats were sacrificed 5 days after radiation, and their descending colons were resected for histopathological evaluation of the presence and severity of damage. RESULTS: Average damage scores did not differ significantly between groups 1 and 2 (0.13 ± 0.35 and 0.25 ± 0.46, respectively); the group 3 score was highest (10.25 ± 0.71), and the group 4 score (3.63 ± 1.41) was significantly lower than that of group 3 (both p = 0.0001). Pre-radiation L-carnitine administration significantly reduced mucosal thinning, crypt distortion, reactive atypia, inflammation, cryptitis, and reactive lymph-node hyperplasia (all p 0.01). CONCLUSIONS: L-carnitine had a radioprotective effect on rat colonic mucosa. L-carnitine use should be explored for patients with gastrointestinal cancer, who have reduced serum L-carnitine levels.(AU)


Subject(s)
Animals , Rats , Carnitine/analysis , Carnitine/therapeutic use , Intestinal Mucosa , Radiation-Protective Agents/analysis , Radiation-Protective Agents/therapeutic use , Colon, Descending/radiation effects , Colitis/radiotherapy , Colitis/veterinary , Rats, Wistar
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