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Mast Cells in Regeneration of the Skin in Burn Wound with Special Emphasis on Molecular Hydrogen Effect. Pharmaceuticals (Basel) 2023; 16:ph16030348. [PMID: 36986447 PMCID: PMC10059032 DOI: 10.3390/ph16030348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 02/17/2023] [Accepted: 02/21/2023] [Indexed: 03/02/2023] Open
Abstract
The mechanisms of regeneration for the fibrous component of the connective tissue of the dermis are still insufficiently studied. The aim of this study was to evaluate the effectiveness of the use of molecular hydrogen on the local therapy of a II degree burn wound with the intensification of collagen fibrillogenesis in the skin. We analyzed the involvement of mast cells (MCs) in the regeneration of the collagen fibers of the connective tissue using water with a high content of molecular hydrogen and in a therapeutic ointment for the cell wounds. Thermal burns led to an increase in the skin MC population, accompanied by a systemic rearrangement of the extracellular matrix. The use of molecular hydrogen for the treatment of burn wounds stimulated the regeneration processes by activating the formation of the fibrous component of the dermis, accelerating wound healing. Thus, the intensification of collagen fibrillogenesis was comparable to the effects of a therapeutic ointment. The remodeling of the extracellular matrix correlated with a decrease in the area of damaged skin. Skin regeneration induced by the activation of the secretory activity of MCs may be one of the possible points of implementation of the biological effects of molecular hydrogen in the treatment of burn wounds. Thus, the positive effects of molecular hydrogen on skin repair can be used in clinical practice to increase the effectiveness of therapy after thermal exposure.
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Glaucoma Treatment and Hydrogel: Current Insights and State of the Art. Gels 2022; 8:gels8080510. [PMID: 36005112 PMCID: PMC9407420 DOI: 10.3390/gels8080510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/09/2022] [Accepted: 08/13/2022] [Indexed: 11/17/2022] Open
Abstract
Aqueous gels formulated using hydrophilic polymers (hydrogels) and those based on stimuli-responsive polymers (in situ gelling or gel-forming systems) attract increasing interest in the treatment of several eye diseases. Their chemical structure enables them to incorporate various ophthalmic medications, achieving their optimal therapeutic doses and providing more clinically relevant time courses (weeks or months as opposed to hours and days), which will inevitably reduce dose frequency, thereby improving patient compliance and clinical outcomes. Due to its chronic course, the treatment of glaucoma may benefit from applying gel technologies as drug-delivering systems and as antifibrotic treatment during and after surgery. Therefore, our purpose is to review current applications of ophthalmic gelling systems with particular emphasis on glaucoma.
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Wang L, Gong T, Ming W, Qiao X, Ye W, Zhang L, Pan C. One step preparation of multifunctional poly (ether sulfone) thin films with potential for wound dressing. BIOMATERIALS ADVANCES 2022; 136:212758. [PMID: 35929327 DOI: 10.1016/j.bioadv.2022.212758] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/21/2022] [Accepted: 03/10/2022] [Indexed: 06/15/2023]
Abstract
The increasing demand for higher-quality medical care has resulted in the obsolescence of traditional biomaterials. Medical care is currently transitioning from an era depending on single-functional biomaterials to one that is supported by multifunctional and stable biomaterials. Herein, long-lasting multifunctional poly(ether sulfone) thin films (MPFs) containing heparin-mimic groups and a quaternary ammonium compound (QAC) were prepared via semi-interpenetrating polymer network (SIPN) strategy. The MPFs, with rough surface and inner finger-like macrovoid, had better hydrophilicity and anti-protein fouling ability, as revealed by scanning electron microscopy (SEM), atomic force microscope (AFM) and water contact angle (WCA) and protein adsorption tests. The results of platelet adhesion and activation, and clotting time confirmed that the hemocompatibility of the MPFs was significantly improved. From cell culture and germ-culture test, it was noted that the overall trend of human umbilical vein endothelial cell (HUVEC) proliferation was enhanced by a combination of heparin-mimic groups and QAC, whereas the growth of Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) was significantly prohibited. In addition, the MPFs were capable of modulating the expression level of basic fibroblast growth factor (bFGF) and transforming growth factor-beta1 (TGF-β1) in fibroblast, which was beneficial to controlling the formation of hypertrophic scar. In summary, the MPFs had potential to be used in the field of wound management and the study might help guide the design of surface structure of wound dressing.
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Affiliation(s)
- Lingren Wang
- Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huaiyin Institute of Technology, Huaian, China; Department of Chemistry and Biochemistry, Georgia Southern University, Statesboro, United States.
| | - Tao Gong
- Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huaiyin Institute of Technology, Huaian, China
| | - Weihua Ming
- Department of Chemistry and Biochemistry, Georgia Southern University, Statesboro, United States
| | - Xinglong Qiao
- Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huaiyin Institute of Technology, Huaian, China
| | - Wei Ye
- Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huaiyin Institute of Technology, Huaian, China
| | - Linna Zhang
- Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huaiyin Institute of Technology, Huaian, China
| | - ChangJiang Pan
- Jiangsu Provincial Key Laboratory for Interventional Medical Devices, Huaiyin Institute of Technology, Huaian, China.
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Su N, Xu T, Li X, Zheng H, Wu B, Zhang S, Zhou Y, Du L, Zhao Y. Heparin and Related Substances for Treating Diabetic Foot Ulcers: A Systematic Review and Meta-Analysis. Front Endocrinol (Lausanne) 2022; 13:749368. [PMID: 35282468 PMCID: PMC8907383 DOI: 10.3389/fendo.2022.749368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 01/28/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Diabetic foot ulcers are a major complication of diabetes mellitus (DM), when heparin and heparin related substances may be potentially used as an adjuvant treatment. We aimed to evaluate the efficacy and safety of heparin and heparin related substances for the treatment of diabetic foot ulcers. METHODS We searched up to March 2021 in the Cochrane Central Register of Controlled Trials (CENTRAL); Ovid MEDLINE; Ovid Embase; EBSCO CINAHL; VIP Chinese Science and Technique Journals Database; China National Knowledge Infrastructure (CNKI) Database and Wan Fang Database investigating heparin or heparin-related substances in patients with diabetic foot ulcers. The primary outcomes included proportion of ulcers completely healed and time to complete ulcer healing. We assessed each included study with the Cochrane 'Risk of bias' tool and used the GRADE approach to assess the overall quality of the evidence. RESULTS We included nine randomized studies involving 620 participants in the meta-analysis, involving two different heparin and heparin-related substances, low molecular weight heparin (LMWH) and hyaluronic acid. Our study did not show the benefits from LMWH on increasing chance of the ulcer healing (RR: 1.26; 95% CI: 0.78 to 2.04; P=0.35; very low) or shortening the time to complete ulcer healing (SMD: 0.13 d; 95% CI: -0.29 to 0.56; P=0.54; very low). Hyaluronic acid may improve the complete ulcer healing (RR: 1.57; 95% CI: 1.29 to 1.91; P˂0.00001; very low) and shorten the time to complete ulcer healing (SMD -0.84, 95% CI -1.15 to -0.53; P<0.00001; low). Hyaluronic acid and LMWH were generally well tolerated for treating diabetic foot ulcers in this review. CONCLUSION Hyaluronic acid may improve diabetic foot ulcer with very low quality evidence but not LMWH. However, the benefits and harms need further validation in larger trials with different population. SYSTEMATIC REVIEW REGISTRATION [https://www.crd.york.ac.uk/prospero/], identifier [PROSPERO, CRD42021269212].
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Affiliation(s)
- Na Su
- Department of Pharmacology, Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Ting Xu
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaodan Li
- Department of Gastroenterology, West China Hospital, Sichuan University, Chengdu, China
| | - Hanrui Zheng
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Bin Wu
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Shengzhao Zhang
- Department of Pharmacology, Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
- Department of Pharmacy, West China Hospital, Sichuan University, Chengdu, China
| | - Yiling Zhou
- Department of Endocrinology and Metabolism, West China Hospital, Sichuan University, Chengdu, China
| | - Liang Du
- Chinese Cochrane Centre, Chinese Journal of Evidence Based Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yinglan Zhao
- Department of Pharmacology, Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, Chengdu, China
- *Correspondence: Yinglan Zhao,
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Dissemond J, Erfurt-Berge C, Goerge T, Kröger K, Funke-Lorenz C, Reich-Schupke S. Systemische Therapien des Ulcus cruris. J Dtsch Dermatol Ges 2019; 16:873-892. [PMID: 29989366 DOI: 10.1111/ddg.13586_g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/12/2018] [Indexed: 11/29/2022]
Affiliation(s)
- Joachim Dissemond
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Essen
| | | | - Tobias Goerge
- Klinik für Hautkrankheiten, Abteilung für Wundheilung/Phlebologie, Universitätsklinikum Münster
| | - Knut Kröger
- Klinik für Gefäßmedizin, Angiologie, HELIOS Klinikum Krefeld
| | - Carolin Funke-Lorenz
- Klinik für Dermatologie, Venerologie und Allergologie, Universitätsklinikum Essen
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Dissemond J, Erfurt-Berge C, Goerge T, Kröger K, Funke-Lorenz C, Reich-Schupke S. Systemic therapies for leg ulcers. J Dtsch Dermatol Ges 2019; 16:873-890. [PMID: 29989361 DOI: 10.1111/ddg.13586] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/12/2018] [Indexed: 02/06/2023]
Abstract
Successful management of patients with leg ulcers requires identification of the underlying etiology, with subsequent initiation of causal treatment, if feasible. Supplementary measures of first choice include stage-adjusted wound treatment, usually combined with compression therapy. The significance of systemic drugs has been the subject of controversial debate, depending on the underlying cause of the condition. The present review article is therefore meant to highlight current aspects of systemic drug therapies for the treatment of leg ulcers associated with chronic venous insufficiency, peripheral arterial disease, livedoid vasculopathy, vasculitis, necrobiosis lipoidica, calciphylaxis and pyoderma gangrenosum. In summary, the majority of therapeutic options presented herein are used off-label. While systemic drugs are promising options for the more common types of wounds such as venous, mixed or arterial leg ulcers, they do not represent the current standard of treatment. By contrast, systemic agents play a key role in the management of many of the other disorders presented herein. These agents primarily include immunomodulatory and rheological drugs used to expedite wound healing.
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Affiliation(s)
- Joachim Dissemond
- Department of Dermatology, Venereology and Allergology, University Medical Center Essen, Essen, Germany
| | - Cornelia Erfurt-Berge
- Department of Dermatology, Venereology and Allergology, University Medical Center Erlangen, Erlangen, Germany
| | - Tobias Goerge
- Department of Dermatology, Division of Wound Healing/Phlebology, University Medical Center Münster, Münster, Germany
| | - Knut Kröger
- Department of Vascular Medicine, HELIOS Klinikum Krefeld, Krefeld, Germany
| | - Carolin Funke-Lorenz
- Department of Dermatology, Venereology and Allergology, University Medical Center Essen, Essen, Germany
| | - Stefanie Reich-Schupke
- Department of Dermatology, Venereology and Allergology, University Medical Center Bochum, Bochum, Germany
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Qiao X, Peng X, Qiao J, Jiang Z, Han B, Yang C, Liu W. Evaluation of a photocrosslinkable hydroxyethyl chitosan hydrogel as a potential drug release system for glaucoma surgery. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2017; 28:149. [PMID: 28831622 DOI: 10.1007/s10856-017-5954-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 08/01/2017] [Indexed: 06/07/2023]
Abstract
Hydroxyethyl chitosan (HECTS) is a critical derivative of chitosan that has been widely used as biomedical materials due to great water-solubility and excellent biocompatibility. Here, photosensitive hydroxyethyl chitosan was synthesized by introducing azide group on NH2 of HECTS (HECTS-AZ), afterwards FTIR and 1H NMR spectra were detected to confirm the formation of HECTS-AZ. The solution of HECTS-AZ can achieve a sol-gel transition through UV irradiation for 30 s. The evaluation of biocompability and biodegradability in vivo was conducted in rats, visual and pathological examinations exhibited the HECTS-AZ has excellent biocompability and degradation time of the hydrogel is more than 14 weeks. Furthermore, HECTS-AZ hydrogel as an ocular drug delivery system loading heparin was prepared to implant under sclera of rabbit after glaucoma filtration surgery (GFS). The experimental results demonstrated the heparin loaded hydrogel can effectively maintain filtration bleb and lowing intraocular pressure (IOP) after GFS for prolonged time. Besides, obvious inflammatory reactions and side effects have not been observed in ocular during the experimental period. In conclusion, the HECTS-AZ hydrogel is a potential drug delivery device for the treatment of glaucoma and other ocular diseases.
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Affiliation(s)
- Xuesong Qiao
- College of Marine Life Sciences, Ocean University of China, Shandong, Qingdao, PR China
| | - Xiaoting Peng
- College of Marine Life Sciences, Ocean University of China, Shandong, Qingdao, PR China
| | - Jing Qiao
- College of Marine Life Sciences, Ocean University of China, Shandong, Qingdao, PR China
| | - Zhiwen Jiang
- College of Marine Life Sciences, Ocean University of China, Shandong, Qingdao, PR China
| | - Baoqin Han
- College of Marine Life Sciences, Ocean University of China, Shandong, Qingdao, PR China.
| | - Chaozhong Yang
- Affiliated Hospital of Heze Medical College, Heze, Shandong, PR China
| | - Wanshun Liu
- College of Marine Life Sciences, Ocean University of China, Shandong, Qingdao, PR China
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Ab Rahman MR, Abdul Razak F, Mohd Bakri M. Evaluation of Wound Closure Activity of Nigella sativa, Melastoma malabathricum, Pluchea indica, and Piper sarmentosum Extracts on Scratched Monolayer of Human Gingival Fibroblasts. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2014; 2014:190342. [PMID: 25371695 PMCID: PMC4211176 DOI: 10.1155/2014/190342] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 09/16/2014] [Indexed: 12/05/2022]
Abstract
Nigella sativa, Melastoma malabathricum, Pluchea indica, and Piper sarmentosum are common Asian traditional medicines to treat minor wounds. This study aimed to investigate the in vitro wound healing properties of aqueous extracts of these plants using human gingival fibroblast (HGF) monolayer as study model. DPPH scavenging activity of the extracts was evaluated and effect on HGF proliferation was determined. Their effect on HGF's function to synthesize collagen was indicated by the level of hydroxyproline produced and effect on wound healing activity was assessed using an in vitro scratch assay. The influence of the extracts on expression of bFGF and TGF-β was also determined. Results revealed all four extracts to exhibit low free radical scavenging activity. The extract from N. sativa (NSSE) compared to the others showed favourable enhancement of HGF proliferation with EC50 of 22.67 ± 3.06 µg/mL (P < 0.05) with accelerated wound closure activity despite its nonsignificant effect on collagen synthesis. In addition to the elevated level of bFGF by up to 15% at 100 µg/mL of NSSE, a slightly better effect was observed on the expression of TGF-β. NSSE thus showed that promising wound healing properties and data obtained may contribute towards validation of its traditional use for the healing of oral wounds.
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Affiliation(s)
- Mas Rizal Ab Rahman
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Fathilah Abdul Razak
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Marina Mohd Bakri
- Department of Oral Biology and Biomedical Sciences, Faculty of Dentistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
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Bicer YO, Koybasi S, Suslu AE, Kukner A, Tezcan E, Ulas N. Effect of heparin on inflammation: An animal model of tracheal stents. Laryngoscope 2014; 124:E368-72. [DOI: 10.1002/lary.24684] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2014] [Revised: 02/28/2014] [Accepted: 03/17/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Yusuf O. Bicer
- Department of Otolaryngology; Abant Izzet Baysal University Faculty of Medicine; Bolu Turkey
| | - Serap Koybasi
- Department of Otolaryngology; Abant Izzet Baysal University Faculty of Medicine; Bolu Turkey
| | - Ahmet E. Suslu
- Department of Otolaryngology; TRF 29 Mayis Private Hospital; Ankara Turkey
| | - Aysel Kukner
- Department of Histology and Embryology; Abant Izzet Baysal University Faculty of Medicine; Bolu Turkey
| | - Erkan Tezcan
- Department of Otolaryngology; Abant Izzet Baysal University Faculty of Medicine; Bolu Turkey
| | - Nilufer Ulas
- Department of Histology and Embryology; Medipol University Faculty of Medicine; Istanbul Turkey
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Influence of glycosaminoglycan identity on vocal fold fibroblast behavior. Acta Biomater 2011; 7:3964-72. [PMID: 21740987 DOI: 10.1016/j.actbio.2011.06.034] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2011] [Revised: 06/17/2011] [Accepted: 06/21/2011] [Indexed: 11/24/2022]
Abstract
Poly(ethylene glycol) (PEG) hydrogels have recently begun to be studied for the treatment of scarred vocal fold lamina propria due, in part, to their tunable mechanical properties, resistance to fibroblast-mediated contraction, and ability to be polymerized in situ. However, pure PEG gels lack intrinsic biochemical signals to guide cell behavior and generally fail to mimic the frequency-dependent viscoelastic response critical to normal superficial lamina propria function. Recent results suggest that incorporation of viscoelastic bioactive substances, such as glycosaminoglycans (GAGs), into PEG networks may allow these gels to more closely approach the mechanical responses of normal vocal fold lamina propria while also stimulating desired vocal fold fibroblast behaviors. Although a number of vocal fold studies have examined the influence of hyaluronan (HA) on implant mechanics and vocal fold fibroblast responses, the effects of other GAG types have been relatively unexplored. This is significant, since recent studies have suggested that chondroitin sulfate C (CSC) and heparan sulfate (HS) are substantially altered in scarred lamina propria. The present study was therefore designed to evaluate the effects of CSC and HS incorporation on the mechanical response of PEG gels and vocal fold fibroblast behavior relative to HA. As with PEG-HA, the viscoelasticity of PEG-CSC and PEG-HS gels more closely approached that of the normal vocal fold lamina propria than pure PEG hydrogels. In addition, collagen I deposition and fibronectin production were significantly higher in CSC than in HA gels, and levels of the myofibroblast marker smooth muscle α-actin (SM α-actin) were greater in CSC and HS gels than in HA gels. Since collagen I, fibronectin, and SM α-actin are generally elevated in scarred lamina propria these results suggest that CSC and HS may be undesirable for vocal fold implants relative to HA. Investigation of various signaling intermediates indicated that alterations in NFκB-p50, NFκB-p65, or pERK1/2 levels may underlie the observed differences among the PEG-GAG gels.
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Ermertcan AT, Inan S, Ozturkcan S, Bilac C, Cilaker S. Comparison of the effects of collagenase and extract of Centella asiatica in an experimental model of wound healing: an immunohistochemical and histopathological study. Wound Repair Regen 2009; 16:674-81. [PMID: 19128262 DOI: 10.1111/j.1524-475x.2008.00417.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, we compared the effects of collagenase and Centella asiatica in the rat model. Twenty-seven female rats were divided into three groups, and two full-thickness wounds were made for each animal. Collagenase ointment was applied topically to Group I and C. asiatica ointment to Group II rats. In Group III, no treatment was applied. On the third day of treatment, wounds on the left side of three animals of each group were excised. On the fifth and eighth day of the treatments, the same procedure was performed for the remaining animals. Indirect immunohistochemical examination was performed to detect transforming growth factor beta (TGF)-beta, endothelial and inducible nitric oxide synthase (eNOS and iNOS), vascular endothelial growth factor, TGF-alpha, laminin, fibronectin, collagen I, and interleukin-1beta. According to the measurements of the wound areas and wound healing periodo, collagenase was superior to the control group. Immunohistochemical examinations showed strong (+++) iNOS and TGF-beta immunoreactivities in C. asiatica group. eNOS immunoreactivity was moderate (++) in this group. For the collagenase group, iNOS, eNOS, and TGF-beta immunoreactivities were moderate (++). In the collagenase group, while TGF-beta and iNOS immunoreactivities were weaker, laminin and fibronectin reactivities were stronger than in C. asiatica and control groups. Collagenase was superior to C. asiatica according to the immunohistochemical findings. Collagenase ointment significantly improves the quality of wound healing and scar formation and is a more appropriate treatment choice than extract of C. asiatica in the early stages of the wound healing process.
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Affiliation(s)
- Aylin Türel Ermertcan
- Department of Dermatology, Celal Bayar University, Faculty of Medicine, Manisa, Turkey.
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Sen S, Meteoglu I, Ogurlu M, Sen S, Derincegoz OO, Derinceoz OO, Barutca S. Topical heparin: a promising agent for the prevention of tracheal stenosis in airway surgery. J Surg Res 2009; 157:e23-9. [PMID: 19524938 DOI: 10.1016/j.jss.2009.01.028] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2008] [Revised: 01/06/2009] [Accepted: 01/20/2009] [Indexed: 11/26/2022]
Abstract
BACKGROUND The protective effects of topical mitomycin-C (MMC) have been well documented for tracheal stenosis; however, to the best of our knowledge, the use of heparin as an anti-inflammatory agent to support wound healing in upper airway surgery was not studied before. The aim of this study was to investigate the efficacy of topical heparin for healing of tracheal re-implants in a rabbit's model and its resultant histological changes compared with that of MMC. METHODS In a rabbit model (n = 21), an elliptically shaped portion of the anterior tracheal wall was excised (3-4 tracheal cartilages) under anesthesia and immersed in an isotonic saline solution containing 0.4 mg/mL (0.04%) MMC (n = 7), heparin (liquemine) 5000 U/mL (n = 7), or none (n = 7) for 2 min and then re-implanted. The follow-up period was 2 wk for all animals and then both the larynx and the trachea were excised for histological evaluation. Hematoxylin-eosin (H and E) staining was applied to the excised tissues for microscopic evaluation. RESULTS Compared with controls, the granulation tissue formation score in MMC group (P = 0.03), and epithelial regeneration and inflammation scores in heparin group (P = 0.032 and P = 0.022, respectively) were more favorable. The fibrosis index and tracheal lumen ratio values were also more favorable in both MMC (P = 0.019 and P = 0.0028, respectively) and heparin (P = 0.023 and P = 0.0021, respectively) groups compared with controls on the 15th d. CONCLUSIONS Topical heparin application may have favorable effects on healing of tracheal autografts in a rabbit model. We suggest that heparin therapy should be further researched for the prevention of tracheal stenosis in airway surgery.
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Affiliation(s)
- Serdar Sen
- Department of Thoracic Surgery, Adnan Menderes University, Aydin, Turkey.
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Fan X, Shangguan L, Ma X. The possible mechanism underlying postoperative atrophy of hyperplastic scar. Med Hypotheses 2008; 71:985-6. [PMID: 18752903 DOI: 10.1016/j.mehy.2008.07.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2008] [Revised: 07/07/2008] [Accepted: 07/08/2008] [Indexed: 11/28/2022]
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