scholarly journals Prevention of adhesions post-abdominal surgery: Assessing the safety and efficacy of Chitogel with Deferiprone in a rat model

PLoS ONE ◽  
2021 ◽  
Vol 16 (1) ◽  
pp. e0244503
Author(s):  
Rajan Sundaresan Vediappan ◽  
Catherine Bennett ◽  
Clare Cooksley ◽  
John Finnie ◽  
Markus Trochsler ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Abdominal Surgery ◽  
Rat Model ◽  
Adhesion Formation ◽  
Pelvic Surgery ◽  
Albino Rats ◽  
Adhesion Barrier ◽  
Midline Laparotomy ◽  
Safety And Efficacy ◽  
To Receive

Introduction Adhesions are often considered to be an inevitable consequence of abdominal and pelvic surgery, jeopardizing the medium and long-term success of these procedures. Numerous strategies have been tested to reduce adhesion formation, however, to date, no surgical or medical therapeutic approaches have been successful in its prevention. This study demonstrates the safety and efficacy of Chitogel with Deferiprone and/or antibacterial Gallium Protoporphyrin in different concentrations in preventing adhesion formation after abdominal surgery. Materials and methods 112 adult (8–10 week old) male Wistar albino rats were subjected to midline laparotomy and caecal abrasion, with 48 rats having an additional enterotomy and suturing. Kaolin (0.005g/ml) was applied to further accelerate adhesion formation. The abrasion model rats were randomized to receive saline, Chitogel, or Chitogel plus Deferiprone (5, 10 or 20 mM), together with Gallium Protoporphyrin (250μg/mL). The abrasion with enterotomy rats were randomised to receive saline, Chitogel or Chitogel with Deferiprone (1 or 5 mM). At day 21, rats were euthanised, and adhesions graded macroscopically and microscopically; the tensile strength of the repaired caecum was determined by an investigator blinded to the treatment groups. Results Chitogel with Deferiprone 5 mM significantly reduced adhesion formation (p<0.01) when pathologically assessed in a rat abrasion model. Chitogel with Deferiprone 5 mM and 1 mM also significantly reduced adhesions (p<0.05) after abrasion with enterotomy. Def-Chitogel 1mM treatment did not weaken the enterotomy site with treated sites having significantly better tensile strength compared to control saline treated enterotomy rats. Conclusions Chitogel with Deferiprone 1 mM constitutes an effective preventative anti-adhesion barrier after abdominal surgery in a rat model. Moreover, this therapeutic combination of agents is safe and does not weaken the healing of the sutured enterotomy site.

Efficacy of Tenoxicam on Intra-Abdominal Adhesion Prevention in a Rat Model

1996 ◽  
Vol 24 (4) ◽  
pp. 352-357 ◽  
Author(s):  
T Yilmazlar ◽  
E Kaya ◽  
E Gürpinar ◽  
H Emiroğlu
Keyword(s):  
Rat Model ◽  
Abdominal Cavity ◽  
Adhesion Formation ◽  
Test Material ◽  
Adhesion Prevention ◽  
Control Group ◽  
Albino Rats ◽  
Abdominal Adhesion ◽  
Wistar Albino Rats ◽  
The Right

The aim of this study was to investigate the effect of tenoxicam as a non-steroidal anti-inflammatory drug (NSAID) on intra-abdominal adhesion prevention in a rat model. Altogether 50 Wistar-Albino rats weighing 220 – 280 g were assigned to five groups, each of which was made up of 10 rats. All the rats were anaesthetized and prepared for sterile surgery. After a mid-line laparotomy was performed, a 1 cm area of the caecum was rubbed with gauze until subserosal haemorrhage developed, and then a 5 mm-diameter part of the peritoneum on the right side of the abdominal wall was removed. Prior to complete closure, 3 ml of the test material was placed into the abdominal cavity. On the eighth day the rats were killed and the adhesion score was determined. The groups and their mean adhesion scores were as follows: control group (normal saline), 2.5; group of dilution buffer, 1.8; tenoxicam (0.125 mg/kg), 1.3; tenoxicam (0.25 mg/kg), 1.3; and tenoxicam (0.5 mg/kg), 0.9. The differences between the adhesion scores among all the groups ( P < 0.05, Kruskal-Wallis test), and those between the tenoxicam groups and control group ( P < 0.05, Mann-Whitney U-test), were significant. Thus a single instillation of tenoxicam into the peritoneal cavity at the time of surgery reduced adhesion formation effectively in this model, irrespective of dosage.

Effects of methylene blue, indigo carmine solution and autologous erythrocyte suspension on formation of adhesions after injection into rats

Reproduction ◽  
2000 ◽  
pp. 225-229 ◽  
Author(s):  
A Gul ◽  
C Kotan ◽  
I Dilek ◽  
T Gul ◽  
A Tas ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Macrophage Activation ◽  
Indigo Carmine ◽  
Adhesion Formation ◽  
Albino Rats ◽  
Erythrocyte Suspension ◽  
Peritoneal Adhesions ◽  
Tubal Patency ◽  
Macrophage Activity ◽  
Group Score

The aim of this study was to determine whether autologous erythrocyte suspension can be used as a dye for evaluation of tubal patency and whether it has any advantages over methylene blue or indigo carmine solutions. Reproductively healthy female nulliparous Wistar Albino rats (n = 30), aged 6 months, mass 165-195 g, were assigned randomly to three groups. Rats received a 1 ml i.p. injection of 5% (w/v) methylene blue solution (methylene blue group: n = 10), 5% (w/v) indigo carmine solution (indigo carmine group: n = 10) or 5% (v/v) fresh autologous erythrocyte suspension (autologous erythrocyte group: n = 10). At 4 weeks after injection, a small sterile opening was made in the peritoneal cavity of each rat. The cavity was rinsed once with TCM-199 to collect macrophages. The rinsed peritoneal contents were cultured overnight to evaluate macrophage activation. The peritoneal opening was expanded for evaluation of adhesion formation. Only one rat from the autologous erythrocyte group had intra-peritoneal adhesions (score 2), whereas all rats in the methylene blue group (score 1: n = 1; score 2: n = 4; score 3: n = 4; and score 4: n = 1) and seven rats in the indigo carmine group (score 1: n = 1; score 2: n = 2; score 3: n = 3; and score 4: n = 1) had intra-abdominal adhesions. Macrophage activity was observed in the cultured peritoneal contents collected from the methylene blue and indigo carmine groups but not from the autologous erythrocyte group. Adhesion formation could be due to macrophage activation caused by methylene blue and indigo carmine solutions. These results indicate that tubal patency can be observed by laparoscopy using autologous erythrocyte suspension. The results of this study are believed to be the first to indicate that a patient's own erythrocyte suspension could be used during observation of tubal patency by laparoscopy. However, further studies are required.

The Safety and Efficacy of Mupirocin Topical Spray for Burn Wound Healing in A Rat Model

2019 ◽  
Vol 10 (01) ◽  
Author(s):  
Sritharadol Rutthapol ◽  
Chunhachaichana Charisopon ◽  
Kumlungmak Sukanjana ◽  
Buatong Wilaiporn ◽  
Dechraksa Janwit ◽  
...  
Keyword(s):  
Wound Healing ◽  
Matrix Metalloproteinase ◽  
Rat Model ◽  
Transforming Growth Factor ◽  
Immunohistochemical Study ◽  
Enzyme Linked Immunosorbent Assay ◽  
Burn Wound ◽  
Safety And Efficacy ◽  
Burn Wound Healing ◽  
Tgf Β1

ABSTRACT This study evaluated the effect of mupirocin topical spray on burn wound healing in a rat model. Fifteen male Sprague Dawley rats were used to create full-thickness burns on the rat dorsum using a cylindrical stainless steel rod. The rats were topically treated with normal saline solution (NSS), mupirocin spray, ointment, and solution. The wound size and morphological evaluation were investigated by photographs and clinical criterions for wound healing. The histology was observed by hematoxylin and eosin (HandE) staining assay. The immunohistochemical study was evaluated by detection of transforming growth factor-beta 1 (TGF-β1), and the ratio of matrix metalloproteinase-9 to the tissue inhibitor of matrix metalloproteinase-1 (MMP-9/TIMP-1) was quantified using the enzyme-linked immunosorbent assay (ELISA) assay. A complete healing was observed at 28 days in all treatments. Mupirocin formulations accelerated the wound healing faster than NSS in size. However, the clinical criteria indicated a desirable skin appearance in the mupirocin spray and ointment treated groups. The histological evaluations showed no differences between the treatments while the immunohistochemical study revealed that all treatments reduced the level of TGF-β1 over time, particularly on day 28 in the mupirocin spray and ointment treated groups. The MMP-9/TIMP-1 ratio was significantly lower in the mupirocin spray and ointment treated groups than in the NSS and mupirocin solution groups. This study shows the safety and efficacy in the use of mupirocin topical spray. The topical mupirocin spray is an alternative suitable for development as a human topical anti-infective and wound protection spray.

scholarly journals Effect of the Mode of Application of Cryopreserved Human Amniotic Membrane on Adhesion Formation after Abdomino-Pelvic Surgery in a Mouse Model

2016 ◽  
Vol 3 ◽  
Author(s):  
Joseph Nassif ◽  
Sehrish A. Abbasi ◽  
Mohamad Karim Kechli ◽  
Suzan S. Boutary ◽  
Labib Ghulmiyyah ◽  
...  
Keyword(s):  
Mouse Model ◽  
Amniotic Membrane ◽  
Adhesion Formation ◽  
Pelvic Surgery ◽  
Human Amniotic Membrane ◽  
Mode Of Application

Honokiol Decreases Intra-Abdominal Adhesion Formation in a Rat Model

2015 ◽  
Vol 79 (3) ◽  
pp. 160-167 ◽  
Author(s):  
Elif Agacayak ◽  
Senem Yaman Tunc ◽  
Mehmet Sait Icen ◽  
Ulas Alabalik ◽  
Fatih Mehmet Findik ◽  
...  
Keyword(s):  
Rat Model ◽  
Adhesion Formation ◽  
Abdominal Adhesion

scholarly journals Safety and Efficacy of Allogeneic Lung Spheroid Cells in a Mismatched Rat Model of Pulmonary Fibrosis

2017 ◽  
Vol 6 (10) ◽  
pp. 1905-1916 ◽  
Author(s):  
Jhon Cores ◽  
M. Taylor Hensley ◽  
Kathryn Kinlaw ◽  
S. Michaela Rikard ◽  
Phuong-Uyen Dinh ◽  
...  
Keyword(s):  
Pulmonary Fibrosis ◽  
Rat Model ◽  
Safety And Efficacy

scholarly journals Comparison of Honey versus Polylactide Anti-Adhesion Barrier on Peritoneal Adhesion and Healing of Colon Anastomosis in Rabbits

2019 ◽  
Vol 7 (10) ◽  
pp. 1597-1601 ◽  
Author(s):  
Ali Reza Negahi ◽  
Parisa Hosseinpour ◽  
Mohammad Vaziri ◽  
Hamed Vaseghi ◽  
Pedram Darvish ◽  
...  
Keyword(s):  
Intestinal Anastomosis ◽  
Adhesion Formation ◽  
Postoperative Adhesion ◽  
Control Group ◽  
Colon Anastomosis ◽  
Human Beings ◽  
Peritoneal Adhesion ◽  
Adhesion Barrier ◽  
Anastomosis Leakage ◽  
Barrier Film

BACKGROUND: Postoperative adhesion is still a consequence of intra-abdominal surgeries, which results in bowel obstruction and abdominopelvic pain. Bowel anastomosis as a common abdominal surgery has the incidence of leakage in up to 30% of patients that increase morbidity and mortality. Due to similar pathways of adhesion formation and wound healing, it is important to find a way to reduce adhesions and anastomosis leakage. AIM: This study was designed to compare antiadhesive as well as anastomosis healing improvement effect of honey and polylactide anti-adhesive barrier film. METHODS: Forty-five rabbits divided into three groups of honey, adhesion barrier film, and control group in an animal study. Under a similar condition, rabbits underwent resection and anastomosis of cecum under general anaesthesia. In the first group, honey was used at the anastomosis site, in the second one polylactide adhesion barrier film utilised, and the third one was the control group. Adhesion, as well as anastomosis leakage, was assessed after 21 days. Data were analysed using the Statistical Package for Social Scientists (SPSS) for Windows version 25. RESULTS: Three groups of 15 rabbits were studied. The results showed that mean peritoneal adhesion score (PAS) was lower in the honey group (1.67) in comparison to the adhesion barrier film group (3.40) and the control group (6.33). CONCLUSION: Bio-absorbable polylactide barrier has an anti-adhesion effect but is not suitable for intestinal anastomosis in rabbits. Further studies needed to evaluate these effects on human beings.

scholarly journals Safety and efficacy of an intravenous nanocrystal formulation of meloxicam in the management of moderate to severe pain following laparoscopic abdominal surgery

2018 ◽  
Vol Volume 11 ◽  
pp. 1901-1903 ◽  
Author(s):  
Neil Singla ◽  
Stewart W McCallum ◽  
Randall J Mack ◽  
Alex Freyer ◽  
Sue Hobson ◽  
...  
Keyword(s):  
Abdominal Surgery ◽  
Severe Pain ◽  
Safety And Efficacy
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