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Pires AARD, Takiya CM, Silva PC, Manso JEF. Gastrotomy followed by gastrorrhaphy as a reliable and more physiologic technique for inducing peritoneal adhesion in rats. Rev Col Bras Cir 2023; 50:e20233453. [PMID: 37531501 PMCID: PMC10508687 DOI: 10.1590/0100-6991e-20233453-en] [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: 08/18/2022] [Accepted: 03/15/2023] [Indexed: 08/04/2023] Open
Abstract
OBJECTIVE this research objective was to develop a new peritoneal adhesion animal model that would lead to adhesions formation in all operated animals, simple and reproducible, associated with maintenance the animal's health. METHODS eighteen adult male Wistar rats (Rattus norvegicus) were randomly distributed into three groups: Control Group (anatomical and clinical parameters), Sham Group (delicate manipulation of the stomach and exposure of the peritoneal cavity to ambient air) and Surgery Group (gastrotomy followed by gastrorrhaphy). The animals were analyzed and classificated macroscopically according to two adhesion classification models and differences between groups were considered significant when p<0.05. RESULTS the six animals in the control group had no peritoneal adhesions, three of the six animals in the sham group had focal peritoneal adhesions, and all animals in the surgery group (gastrotomy followed by gastrorraphy) had firm peritoneal adhesions. All adhesions found were macroscopically quantified and microscopically confirmed, without carrying out a microscopic classification of the adhesions. CONCLUSION the new model developed of gastrotomy followed by gastrorrhaphy, proved to be safe and efficient to induce and study peritoneal adhesions.
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Affiliation(s)
- Antonio Augusto Ribeiro Dias Pires
- - Universidade Federal do Rio de Janeiro, Departamento de Cirurgia Experimental - Rio de Janeiro - RJ - Brasil
- - Hospital Naval Marcílio Dias - Rio de Janeiro - RJ - Brasil
| | - Christina Maeda Takiya
- - Universidade Federal do Rio de Janeiro, Departamento de Cirurgia Experimental - Rio de Janeiro - RJ - Brasil
| | - Paulo Cesar Silva
- - Universidade Federal do Rio de Janeiro, Departamento de Cirurgia Experimental - Rio de Janeiro - RJ - Brasil
| | - José Eduardo Ferreira Manso
- - Universidade Federal do Rio de Janeiro, Departamento de Cirurgia Experimental - Rio de Janeiro - RJ - Brasil
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Chen CH, Chen SH, Chen SH, Chuang ADC, T G D, Chen JP. Hyaluronic acid/platelet rich plasma-infused core-shell nanofiber membrane to prevent postoperative tendon adhesion and promote tendon healing. Int J Biol Macromol 2023; 231:123312. [PMID: 36669628 DOI: 10.1016/j.ijbiomac.2023.123312] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/19/2023]
Abstract
An anti-adhesive barrier membrane incorporating hyaluronic acid (HA) can reduce fibroblasts attachment and impart lubrication effect for smooth tendon gliding during management of post-surgical tendon adhesion. On the other hand, as numerous growth factors are required during tendon recovery, growth factors released by platelets in platelet-rich plasma (PRP) can provide beneficial therapeutic effects to facilitate tendon recovery post tendon injury. Furthermore, PRP is reported to be associated with anti-inflammatory properties for suppressing postoperative adhesion. Toward this end, we fabricate core-shell nanofiber membranes (NFM) with HA/PRP-infused core and polycaprolactone shell in this study. Different NFM with 100 % (H-P), 75 % (HP31-P), 50 % (HP11-P) and 25 % (H31-P) HA in the core was fabricated through coaxial electrospinning and analyzed through microscopic, pore size, mechanical, as well as HA and growth factor release studies. In vitro study with fibroblasts indicates the NFM can act as a barrier to prevent cell penetration and reduce cell attachment/focal adhesion, in addition to promoting tenocyte migration in tendon healing. In vivo studies in a rabbit flexor tendon rupture model indicates the HP11-P NFM shows improved efficacy over H-P NFM and control in reducing tendon adhesion formation and inflammation, while promoting tendon healing, from functional assays and histological analysis.
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Affiliation(s)
- Chih-Hao Chen
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Keelung, Keelung 20401, Taiwan; Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Kwei-San, Taoyuan 33305, Taiwan
| | - Shih-Hsien Chen
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan
| | - Shih-Heng Chen
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Kwei-San, Taoyuan 33305, Taiwan
| | - Andy Deng-Chi Chuang
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Keelung, Keelung 20401, Taiwan
| | - Darshan T G
- Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan
| | - Jyh-Ping Chen
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital at Linkou, College of Medicine, Chang Gung University, Kwei-San, Taoyuan 33305, Taiwan; Department of Chemical and Materials Engineering, Chang Gung University, Kwei-San, Taoyuan 33302, Taiwan; Department of Neurosurgery, Chang Gung Memorial Hospital at Linkou, Kwei-San, Taoyuan 33305, Taiwan; Research Center for Food and Cosmetic Safety, Research Center for Chinese Herbal Medicine, College of Human Ecology, Chang Gung University of Science and Technology, Taoyuan 33302, Taiwan; Department of Materials Engineering, Ming Chi University of Technology, Tai-Shan, New Taipei City 24301, Taiwan.
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Allam E, Abdel Moniem R, Soliman G. Functional and structural assessment of the possible protective effect of platelet-rich plasma against ischemia/reperfusion-induced ovarian injury in adult rats. CHINESE J PHYSIOL 2022; 65:64-71. [DOI: 10.4103/cjp.cjp_3_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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