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Siebert T, Moersdorf G, Colberg T. Laparoscopic application of sodium hyaluronate-carboxymethylcellulose barrier in abdominopelvic surgery: A Preferred Reporting Items for Systematic Reviews and Meta-Analyses for Systematic Review Protocols-compliant systematic review and meta-analysis. Surgery 2024; 175:1358-1367. [PMID: 38429164 DOI: 10.1016/j.surg.2024.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 01/03/2024] [Accepted: 01/12/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND We aimed to evaluate the incidence of postoperative adhesion formation and adhesion-related consequences (eg, bowel obstruction) after placement of a sodium hyaluronate-carboxymethylcellulose adhesion barrier after laparoscopic abdominopelvic surgery. METHODS In this systematic review and meta-analysis, we searched the Medical Literature Analysis and Retrieval System Online and Embase via Ovid, Cochrane Central Register of Controlled Trials, ScienceDirect, BIOSIS Previews, Cumulative Index to Nursing and Allied Health Literature, and Clinical Trial Registries. A manual search (eg, Google Scholar and professional association websites) was also conducted to supplement the electronic database results. Two reviewers independently identified relevant studies based on inclusion and exclusion criteria and extracted data. RESULTS A total of 28 studies were included in the systematic qualitative review. Three of the 28 studies included had comparable outcome measures, interventions, and control groups, allowing the pooling of study data. A total of 938 patients (490 patients in the sodium hyaluronate-carboxymethylcellulose barrier group and 448 in the no adhesion barrier group) from these 3 studies were included in the meta-analyses, which found the incidence of bowel obstruction was significantly lower (65% risk reduction) in the sodium hyaluronate-carboxymethylcellulose barrier group compared with the control group (relative risk = 0.35; 95% confidence interval, 0.19-0.63; P = .005) with extremely low heterogeneity between studies (I2 = 0; P = .41). The placement of sodium hyaluronate-carboxymethylcellulose barrier laparoscopically did not create new safety signals nor did it increase the incidence of adverse events. CONCLUSION Our meta-analysis found that laparoscopic application of a sodium hyaluronate-carboxymethylcellulose barrier in abdominopelvic surgery reduces the risk of bowel obstruction where applied during the early postoperative phase.
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Affiliation(s)
- Terri Siebert
- Medical Affairs, Baxter Healthcare Corporation, Deerfield, IL.
| | | | - Torben Colberg
- Medical Affairs, Baxter Healthcare Corporation, Deerfield, IL
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2
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Ensan B, Bathaei P, Nassiri M, Khazaei M, Hassanian SM, Abdollahi A, Ghorbani HR, Aliakbarian M, Ferns GA, Avan A. The Therapeutic Potential of Targeting Key Signaling Pathways as a Novel Approach to Ameliorating Post-Surgical Adhesions. Curr Pharm Des 2022; 28:3592-3617. [PMID: 35466868 DOI: 10.2174/1381612828666220422090238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/24/2022] [Accepted: 02/04/2022] [Indexed: 01/28/2023]
Abstract
BACKGROUND Peritoneal adhesions (PA) are a common complication of abdominal operations. A growing body of evidence shows that inhibition of inflammation and fibrosis at sites of peritoneal damaging could prevent the development of intra-abdominal adhesions. METHODS A search of PubMed, Medline, CINAHL and Embase databases was performed using the keywords 'postsurgical adhesion', 'post-operative adhesion', 'peritoneal adhesion', 'surgery-induced adhesion' and 'abdominal adhesion'. Studies detailing the use of pharmacological and non-pharmacological agents for peritoneal adhesion prevention were identified, and their bibliographies were thoroughly reviewed to identify further related articles. RESULTS Several signaling pathways, such as tumor necrosis factor-alpha, tissue plasminogen activator, and type 1 plasminogen activator inhibitor, macrophages, fibroblasts, and mesothelial cells play a key part in the development of plasminogen activator. Several therapeutic approaches based on anti-PA drug barriers and traditional herbal medicines have been developed to prevent and treat adhesion formation. In recent years, the most promising method to prevent PA is treatment using biomaterial-based barriers. CONCLUSION In this review, we provide an overview of the pathophysiology of adhesion formation and various agents targeting different pathways, including chemical agents, herbal agents, physical barriers, and clinical trials concerning this matter.
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Affiliation(s)
- Behzad Ensan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Parsa Bathaei
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammadreza Nassiri
- Recombinant Proteins Research Group, The Research Institute of Biotechnology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Majid Khazaei
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Seyed Mahdi Hassanian
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Abdollahi
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hamid Reza Ghorbani
- Orology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohsen Aliakbarian
- Surgical Oncology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Gordon A Ferns
- Brighton & Sussex Medical School, Division of Medical Education, Falmer, Brighton, Sussex, BN1 9PH, UK
| | - Amir Avan
- Metabolic Syndrome Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.,Basic Sciences Research Institute, Mashhad University of Medical Sciences, Mashhad, Iran.,Medical Genetics Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
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Bang S, Choi YH, Lee SJ, Hong SH. Collagen Type-I Agent Reduced Postoperative Bowel Adhesions Following Laparoscopic and Robot-Assisted Radical Prostatectomy: A Prospective, Single-Blind Randomized Clinical Trial. J Clin Med 2022; 11:jcm11175058. [PMID: 36078988 PMCID: PMC9457016 DOI: 10.3390/jcm11175058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
This study aimed to compare the anti-adhesive effect of collagen type-I (COL) agent and hyaluronic acid-carboxymethylcellulose (HA/CMC) following laparoscopic and robotic radical prostatectomies. This study was a randomized, controlled, single-blind, multicenter study using COL and HA/CMC in patients who underwent laparoscopic and robotic radical prostatectomies. All patients were randomly assigned to either the COL (n = 66) or HA/CMC (n = 65) group. Viscera slide ultrasound sonography was recorded on the day of surgery (V2) and 12 weeks later (V4). The primary end point was the difference in the excursion distance in the viscera slide ultrasonography between V2 and V4. A total of 131 patients participated in this study. The viscera slide distance in the test and control groups was 1.89 ± 0.49 cm and 1.80 ± 0.45 cm, respectively, at V2 (p = 0.275). The average distance of the viscera slide in the test and control group was 1.59 ± 0.49 cm and 1.64 ± 0.45 cm, respectively at V4 (p = 0.614). None of the patients showed significant adverse effects. This randomized study showed that the efficacy and stability of the gel-type COL anti-adhesion agent are not inferior to those of HA/CMC, of which the properties are established.
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Affiliation(s)
- Seokhwan Bang
- Department of Urology, Seoul St. Mary’s Hospital, Collage of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Young Hyo Choi
- Department of Urology, St. Vincent’s Hospital, Collage of Medicine, The Catholic University of Korea, Seoul 16247, Korea
| | - Seung-Ju Lee
- Department of Urology, St. Vincent’s Hospital, Collage of Medicine, The Catholic University of Korea, Seoul 16247, Korea
| | - Sung-Hoo Hong
- Department of Urology, Seoul St. Mary’s Hospital, Collage of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence:
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Noh JJ, Kim MS, Jeong SY, Kang JH, Park BK, Kim TJ. The prevention of postoperative port-site adhesion following single-port access (SPA) laparoscopic surgeries. Medicine (Baltimore) 2021; 100:e27441. [PMID: 34622860 PMCID: PMC8500635 DOI: 10.1097/md.0000000000027441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 09/18/2021] [Indexed: 01/05/2023] Open
Abstract
ABSTRACT No studies have examined the issue of intraabdominal port-site adhesion following single-port access (SPA) laparoscopic surgeries. The purpose of the present study was to investigate the clinical effects of temperature-sensitive adhesion barrier solution in preventing periumbilical adhesion in SPA laparoscopy. This was a prospective, single-arm study in which patients were given GUARDIX-SGTM after SPA laparoscopic surgery for benign gynecologic diseases. One gram of GUARDIX-SGTM was applied on the abdominal viscera just below the umbilical port site and adjacent abdominal wall prior to fascia closure. The primary endpoint was the incidence of postoperative adhesion evaluated by visceral sliding technique through transabdominal sonography after three months. Between June 2019 and March 2020, a total of 37 healthy patients without any history of previous abdominal surgery received SPA laparoscopic surgery by a single surgeon. No postoperative complications such as wound dehiscence or surgical site infection occurred during the follow-up period of three months. No postoperative adhesion around the umbilicus was noted in all 37 patients. The mean visceral movement measured by transabdominal sonography during maximal respiration was 4.9 cm (4.9 ± 1.9 cm). Using an adhesion barrier around the port site prior to fascia closure prevents postoperative adhesion in benign SPA laparoscopic gynecologic surgery.
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Affiliation(s)
- Joseph J Noh
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Myeong-Seon Kim
- Department of Obstetrics and Gynecology, St. Vincent's Hospital, Catholic University of Korea, Suwon, South Korea
| | - Soo-Young Jeong
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Jun-Hyeok Kang
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Byung-Kwan Park
- Department of Radiology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
| | - Tae-Joong Kim
- Division of Gynecologic Oncology, Department of Obstetrics and Gynecology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea
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Nakashima M, Takeuchi M, Kawakami K. Effectiveness of barrier agents for preventing postoperative bowel obstruction after laparoscopic surgery: a retrospective cohort study. Surg Today 2021; 51:1335-1342. [PMID: 33646411 DOI: 10.1007/s00595-021-02258-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Accepted: 12/18/2020] [Indexed: 11/26/2022]
Abstract
PURPOSE The effectiveness of using anti-adhesion agents in laparoscopic surgery is controversial. We compared the outcomes of patients exposed to anti-adhesion agents (barrier group) with those of patients not exposed (no barrier group) in laparoscopic surgery. METHODS Using a nationwide claim-based database in Japan, we analyzed data from patients who underwent laparoscopic surgery between 2005 and 2019 and compared the patient characteristics and the proportion of those with bowel obstruction between the barrier and no barrier groups. We also performed several sensitivity and subgroup analyses. RESULTS Of the 57,499 patients who met the inclusion criteria, 14,360 and 43,139 were assigned to the barrier and no barrier groups, respectively. The proportion of patients with a bowel obstruction in the two groups did not differ among all patients hospitalized for obstruction (1.1 vs. 1.1%, p = 0.63) and those requiring surgery (0.2 vs. 0.2%, p = 0.39). In the sensitivity analysis with propensity score matching, the incidences of bowel obstruction between the barrier and non-barrier groups were equivocal (1.3 vs. 1.6%), but statistically marginal (chi-square test, p = 0.035; log-rank test, p = 0.09). CONCLUSION The use of barrier agents for adhesive prevention did not show clear effectiveness for the prevention of bowel obstruction after laparoscopic surgery for unselected cases. Further studies focusing on more specific procedures are needed.
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Affiliation(s)
- Masayuki Nakashima
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan
| | - Masato Takeuchi
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan
| | - Koji Kawakami
- Department of Pharmacoepidemiology, Graduate School of Medicine and Public Health, Kyoto University, Yoshida Konoecho, Sakyoku, Kyoto, 606-8501, Japan.
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Vasvani S, Kulkarni P, Rawtani D. Hyaluronic acid: A review on its biology, aspects of drug delivery, route of administrations and a special emphasis on its approved marketed products and recent clinical studies. Int J Biol Macromol 2020; 151:1012-1029. [DOI: 10.1016/j.ijbiomac.2019.11.066] [Citation(s) in RCA: 88] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Revised: 10/25/2019] [Accepted: 11/07/2019] [Indexed: 12/20/2022]
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Park DY, Yun HW, Lim S, Truong MD, Yin XY, Park J, Kim BK, Shin DI, Li XG, Chung JY, Kim MS, Min BH. Cross-linked cartilage acellular matrix film decreases postsurgical peritendinous adhesions. Artif Organs 2019; 44:E136-E149. [PMID: 31660625 DOI: 10.1111/aor.13591] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/14/2019] [Accepted: 10/23/2019] [Indexed: 12/15/2022]
Abstract
Cartilage extracellular matrix contains antiadhesive and antiangiogenic molecules such as chondromodulin-1, thrombospondin-1, and endostatin. We have aimed to develop a cross-linked cartilage acellular matrix (CAM) barrier for peritendinous adhesion prevention. CAM film was fabricated using decellularized porcine cartilage tissue powder and chemical cross-linking. Biochemical analysis of the film showed retention of collagen and glycosaminoglycans after the fabrication process. Physical characterization of the film showed denser collagen microstructure, increased water contact angle, and higher tensile strength after cross-linking. The degradation time in vivo was 14 d after cross-linking. The film extract and film surface showed similar cell proliferation, while inhibiting cell migration and cell adhesion compared to standard media and culture plate, respectively. Application of the film after repair resulted in similar tendon healing and significantly less peritendinous adhesions in a rabbit Achilles tendon injury model compared to repair only group, demonstrated by histology, ultrasonography, and biomechanical testing. In conclusion, the current study developed a CAM film having biological properties of antiadhesion, together with biomechanical properties and degradation profile suitable for prevention of peritendinous adhesions.
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Affiliation(s)
- Do Young Park
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea.,Cell Therapy Center, Ajou University Medical Center, Suwon, Korea
| | - Hee-Woong Yun
- Cell Therapy Center, Ajou University Medical Center, Suwon, Korea.,Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Sumin Lim
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea
| | - Minh-Dung Truong
- Cell Therapy Center, Ajou University Medical Center, Suwon, Korea.,Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Xiang Yun Yin
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea.,Cell Therapy Center, Ajou University Medical Center, Suwon, Korea
| | - Jinho Park
- Cell Therapy Center, Ajou University Medical Center, Suwon, Korea.,Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Byeong Kook Kim
- Cell Therapy Center, Ajou University Medical Center, Suwon, Korea.,Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Dong Il Shin
- Cell Therapy Center, Ajou University Medical Center, Suwon, Korea.,Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Xue Guang Li
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea.,Cell Therapy Center, Ajou University Medical Center, Suwon, Korea
| | - Jun Young Chung
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea
| | - Moon Suk Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Korea
| | - Byoung-Hyun Min
- Department of Orthopedic Surgery, School of Medicine, Ajou University, Suwon, Korea.,Cell Therapy Center, Ajou University Medical Center, Suwon, Korea.,Department of Molecular Science and Technology, Ajou University, Suwon, Korea
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The sticky business of adhesion prevention in minimally invasive gynecologic surgery. Curr Opin Obstet Gynecol 2018; 29:266-275. [PMID: 28582326 DOI: 10.1097/gco.0000000000000372] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
PURPOSE OF REVIEW The negative impact of postoperative adhesions has long been recognized, but available options for prevention remain limited. Minimally invasive surgery is associated with decreased adhesion formation due to meticulous dissection with gentile tissue handling, improved hemostasis, and limiting exposure to reactive foreign material; however, there is conflicting evidence on the clinical significance of adhesion-related disease when compared to open surgery. Laparoscopic surgery does not guarantee the prevention of adhesions because longer operative times and high insufflation pressure can promote adhesion formation. Adhesion barriers have been available since the 1980s, but uptake among surgeons remains low and there is no clear evidence that they reduce clinically significant outcomes such as chronic pain or infertility. In this article, we review the ongoing magnitude of adhesion-related complications in gynecologic surgery, currently available interventions and new research toward more effective adhesion prevention. RECENT FINDINGS Recent literature provides updated epidemiologic data and estimates of healthcare costs associated with adhesion-related complications. There have been important advances in our understanding of normal peritoneal healing and the pathophysiology of adhesions. Adhesion barriers continue to be tested for safety and effectiveness and new agents have shown promise in clinical studies. Finally, there are many experimental studies of new materials and pharmacologic and biologic prevention agents. SUMMARY There is great interest in new adhesion prevention technologies, but new agents are unlikely to be available for clinical use for many years. High-quality effectiveness and outcomes-related research is still needed.
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Watanabe MS, Theodoro TR, Coelho NL, Mendes A, Leonel MLP, Mader AM, Nader HB, Glina S, Pinhal MAS. Extracellular matrix alterations in the Peyronie's disease. J Adv Res 2017; 8:455-461. [PMID: 28721300 PMCID: PMC5491452 DOI: 10.1016/j.jare.2017.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 06/09/2017] [Accepted: 06/13/2017] [Indexed: 12/22/2022] Open
Abstract
Peyronie’s disease is characterized by fibrous plaque formation of the tunica albuginea, causing penile deformity and fertility problems. The aim of the present study was to investigate alterations in the extracellular matrix in Peyronie’s disease. The study used tissues collected by surgical procedure from individuals that presented a well-established disease, while control samples were obtained by biopsies of fresh cadavers. Immunohistochemistry analysis followed by digital quantification was performed to evaluate TGF-β, heparanases and metalloproteinases (MMPs). The profile of sulfated glycosaminoglycans, chondroitin sulfate and dermatan sulfate was determined by agarose gel electrophoresis, while hyaluronic acid quantification was obtained by an ELISA-like assay. The expression of mRNA was investigated for syndecan-1 proteoglycan (Syn-1), interleukine-6 (IL-6), hyaluronic acid synthases, and hyaluronidases. Pathologic features showed decreased apoptosis and blood vessel number in Peyronie’s tissues. TGF-β and IL-6 were significantly enhanced in Peyronie’s disease. There was an increased expression of heparanases, though no alteration was observed for MMPs. Hyaluronic acid as well as hyaluronic acid synthases, hyaluronidases, and dermatan sulfate were not changed, while the level of chondroitin sulfate was significantly (P = 0.008, Mann-Whitney test) increased in Peyronie’s samples. Heparanases and sulfated glycosaminoglycans seem to be involved in extracellular matrix alterations in Peyronie’s disease.
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Affiliation(s)
| | | | - Natália Lima Coelho
- Biochemistry Department Universidade Federal de São Paulo, UNIFESP, São Paulo 04044-020, Brazil
| | - Aline Mendes
- Biochemistry Department Universidade Federal de São Paulo, UNIFESP, São Paulo 04044-020, Brazil
| | | | - Ana Maria Mader
- Pathology Department Faculdade de Medicina do ABC, Santo André 09060-650, Brazil
| | - Helena Bonciani Nader
- Biochemistry Department Universidade Federal de São Paulo, UNIFESP, São Paulo 04044-020, Brazil
| | - Sidney Glina
- Urology Department, Faculdade de Medicina do ABC, Santo André 09060-650, Brazil
| | - Maria Aparecida Silva Pinhal
- Biochemistry Departament, Faculdade de Medicina do ABC, Santo André 09060-650, Brazil
- Biochemistry Department Universidade Federal de São Paulo, UNIFESP, São Paulo 04044-020, Brazil
- Corresponding author.
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Preventive Effects of the Intestine Function Recovery Decoction, a Traditional Chinese Medicine, on Postoperative Intra-Abdominal Adhesion Formation in a Rat Model. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2016; 2016:1621894. [PMID: 28105058 PMCID: PMC5220493 DOI: 10.1155/2016/1621894] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Revised: 11/18/2016] [Accepted: 12/05/2016] [Indexed: 12/20/2022]
Abstract
The intestine function recovery decoction (IFRD) is a traditional Chinese medicine that has been used for the treatment of adhesive intestinal obstruction. In this study, the preventative effects and probable mechanism of the IFRD were investigated in a rat model. We randomly assigned rats to five groups: normal, model, control, low dose IFRD, and high dose IFRD. In the animal model, the caecum wall and parietal peritoneum were abraded to induce intra-abdominal adhesion formation. Seven days after surgery, adhesion scores were assessed using a visual scoring system, and histopathological samples were examined. The levels of serum interleukin-6 (IL-6) and transforming growth factor beta-1 (TGF-β1) were analysed by an enzyme-linked immunosorbent assay (ELISA). The results showed that a high dose of IFRD reduced the grade of intra-abdominal adhesion in rats. Furthermore, the grades of inflammation, fibrosis, and neovascularization in the high dose IFRD group were significantly lower than those in the control group. The results indicate that the IFRD can prevent intra-abdominal adhesion formation in a rat model. These data suggest that the IFRD may be an effective antiadhesion agent.
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