Advances in wound carePub Date : 2025-11-01Epub Date: 2025-02-12DOI: 10.1089/wound.2024.0189
Yadwinder Dhillon, Gerit Mulder, Keyur Patel, Luis Moya, Gerard Boghossian, David Swain, Robert McLafferty, Kelly Perez, Jessica Nguyen, Natalie Wilkinson, Jessica Arragon, Lillia Contreras, Donna Geiger, Ryan Cummings, Brenda LaVigne, Desmond Bell, Suzanne Bakewell
{"title":"An Open-Label, Interventional, Prospective, Real-World Evidence Study to Evaluate a Multimodal Wound Matrix in Patients with Refractory Wounds.","authors":"Yadwinder Dhillon, Gerit Mulder, Keyur Patel, Luis Moya, Gerard Boghossian, David Swain, Robert McLafferty, Kelly Perez, Jessica Nguyen, Natalie Wilkinson, Jessica Arragon, Lillia Contreras, Donna Geiger, Ryan Cummings, Brenda LaVigne, Desmond Bell, Suzanne Bakewell","doi":"10.1089/wound.2024.0189","DOIUrl":"10.1089/wound.2024.0189","url":null,"abstract":"<p><p><b>Objective:</b> The objective of this open-label, interventional, prospective clinical study was to evaluate the effectiveness of a multimodal wound matrix (MWM) in moving chronic, nonhealing wounds that had failed prior therapies onto a healing trajectory. The overall response rate was the proportion of subjects who had greater than 40% reduction in size after 4 weeks of treatment. Secondary objectives included the percentage area reduction (PAR) after 4 and 12 weeks, incidence of ulcer closing, and changes in quality of life. <b>Approach:</b> An open-label, interventional, prospective cohort, real-world evidence study was conducted following the STROBE criteria. Criteria included chronic nonhealing wounds of multiple etiologies in subjects with extensive comorbidities. Results were compared with data from the U.S. Wound Registry. <b>Results:</b> A total of 111 subjects entered the screening phase and 64 were treated. Fifty-three wounds were eligible for the dataset that included 18 diabetic foot ulcers, 19 venous leg ulcers, 2 pressure injuries, 1 surgical, 1 lower extremity wound, and 12 unclassified etiologies. The objective response rate was 42%. The 4-week PAR was 34%. The 12-week PAR was 66%. Eighteen wounds closed by week 12. <b>Innovation:</b> MWM is a formulation technology developed to address the major obstacles that prevent healing. Results were evaluated in a patient population with extensive comorbidities that had failed prior treatments and would be generally excluded from controlled trials. <b>Conclusion:</b> The results from this study support the contention that MWM achieves substantial clinical improvement in a complex patient population not enrolled in clinical trials and demonstrates an advancement in wound management.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"609-618"},"PeriodicalIF":5.6,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143397756","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advances in wound carePub Date : 2025-11-01Epub Date: 2025-01-24DOI: 10.1089/wound.2024.0215
Herbert B Slade, Barry T Reece, Nick D McCoy, Eric D Roche, Aleksa V Jovanovic, Lei Shi, Nasreen Jacobson
{"title":"Effects of a New Enzymatic Debrider (SN514-066b) on Eschar Protein Digestion, Burn Wound Debridement, and Healthy Skin Irritation.","authors":"Herbert B Slade, Barry T Reece, Nick D McCoy, Eric D Roche, Aleksa V Jovanovic, Lei Shi, Nasreen Jacobson","doi":"10.1089/wound.2024.0215","DOIUrl":"10.1089/wound.2024.0215","url":null,"abstract":"<p><p><b>Objective:</b> SN514 is a thermolysin-like enzyme under development as a debrider. Preclinical and non-clinical studies supported a first in human healthy volunteer study to predict the need for protection of periwound skin. <b>Approach:</b> Pharmacologic activity testing compared <i>in vitro</i> digestion of collagen, fibrin, and elastin with relevant enzymes. A Yorkshire pig model of burn injury was used to evaluate debridement over 10 days and effects on intact skin. A human 21-day cumulative irritation study using Webril patches taped to the backs of 38 healthy adult volunteers compared four enzyme concentrations (0.10%, 0.20%, 0.40%, and 0.80% w/w) with the hydrogel vehicle, saline (low irritant control), and 0.2% sodium lauryl sulfate (positive irritant control) using randomized placements and blinded evaluation. <b>Results:</b> SN514 showed excellent digestion of fibrin, elastin, and collagen <i>in vitro</i>. Burn wound studies in Yorkshire pigs showed efficient eschar debridement with minimal periwound erythema. Direct treatment on intact porcine skin for 5 days produced no to limited erythema. The preclinical findings of minimal irritation with SN514 were verified by a Phase 1 first-in-human 21-day cumulative skin irritation test. Irritation was observed to increase stepwise by concentration, confirming formulation accuracy. Each enzyme concentration was found to be \"possibly mild in use\" (Berger and Bowman method). No treatment emergent adverse events were observed during the study. <b>Innovation:</b> A fast-acting enzyme with a favorable irritation profile, prepared as a stable, ready to use hydrogel formulation, overcomes many recognized shortcomings of enzyme debriders. <b>Conclusion:</b> The overall findings support clinical dose range testing for tolerance and preliminary efficacy.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"589-599"},"PeriodicalIF":5.6,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143031754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advances in wound carePub Date : 2025-11-01Epub Date: 2023-06-20DOI: 10.1089/wound.2023.0011
Anna Herman, Andrzej P Herman
{"title":"Antimicrobial Peptides for Diabetic Wound Healing: Preclinical and Clinical Studies.","authors":"Anna Herman, Andrzej P Herman","doi":"10.1089/wound.2023.0011","DOIUrl":"10.1089/wound.2023.0011","url":null,"abstract":"<p><p>The purpose of this review is to provide verified data on the current knowledge acquired from preclinical and clinical studies regarding topically used antimicrobial peptides (AMPs) with diabetic wound healing activity. The electronic databases were searched for articles published from 2012 to 2022. The 20 articles comparing topically used AMPs in diabetic wound healing treatment versus control treatments (placebo or active therapy) were selected. AMPs have several unique advantages in diabetic wound healing, such as a broad spectrum of antimicrobial activity even against antibiotic-resistant strains, and the capability to modulate the host's immune response and affect wound healing processes through various mechanisms of action. AMPs through antioxidant activity, stimulation of angiogenesis, keratinocytes, and fibroblast migration and proliferation may be considered an important support during conventional therapy used for diabetic wound treatment.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"619-634"},"PeriodicalIF":5.6,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9666595","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advances in wound carePub Date : 2025-11-01Epub Date: 2025-09-29DOI: 10.1177/21621918251382448
Brian M Schmidt, Cathie Spino, Charles Parks, Sashwati Roy, Gayle M Gordillo, Crystal M Holmes, Rodica Pop-Busui, Chandan K Sen
{"title":"High Transepidermal Water Loss at the Closed Wound Site Marks Compromised Functional Wound Closure and Associates with Wound Recurrence in Diabetic Foot Ulcers: A Prognostic Factor Study.","authors":"Brian M Schmidt, Cathie Spino, Charles Parks, Sashwati Roy, Gayle M Gordillo, Crystal M Holmes, Rodica Pop-Busui, Chandan K Sen","doi":"10.1177/21621918251382448","DOIUrl":"10.1177/21621918251382448","url":null,"abstract":"<p><p><b>Objective:</b> Wound closure is skin reepithelialization confirmed at two consecutive clinical visits 2 weeks apart. Our objective was to identify participant characteristics, including transepidermal water loss (TEWL), associated with complete wound closure of diabetic foot ulcers (DFUs) and reopening of a DFU within 2 weeks after initial closure in the National Institute of Diabetes and Digestive and Kidney Diseases-sponsored Diabetic Foot Consortium TEWL prospective observational cohort study of wound recurrence. At the site of wound closure, TEWL measures restoration of skin barrier function and functional wound closure. <b>Approach:</b> Four hundred and sixty-six eligible participants had physician-assessed wound closure at baseline. Of which, 418 (90%) had confirmed closure 2 weeks later and remained in the study, whereas 29 had their DFU reopen 2 weeks later and were not eligible for follow-up (<i>i.e.,</i> screen failures). We compared baseline characteristics of 418 enrolled and 29 screen fail individuals using Wilcoxon rank sum and Fisher's exact tests <i>p</i> value for continuous and categorical outcomes, respectively. <b>Results:</b> There were no statistically significant differences in demographics, including age, sex, race, education, employment status, social support, or dressing change requirements between groups. The failure to maintain closure group had longer median duration of index DFU before initial closure (25.8 vs. 14 weeks, <i>p</i> = 0.003), higher frequency of prior total contact casting use (37% vs. 14%, <i>p</i> = 0.003), and a higher median initial TEWL measurement at the healed ulcer midpoint (27.1 vs. 21.0 g/m<sup>2/h</sup>, <i>p</i> = 0.006). <b>Innovation:</b> TEWL measurement at the site of wound closure can assess functional capacity of the skin in conjunction with current standards of wound closure end point in DFU and has significant potential to add quantitative measurement to assist in clinical assessment of healing wounds. <b>Conclusion:</b> Individuals with DFU who did not maintain wound closure had higher TEWL values at baseline, longer DFU wound duration, and more prior off-loading use. These findings are clinically relevant as a higher TEWL measurement demonstrates incomplete functional wound closure, supporting the use of TEWL to identify a healed DFU.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"600-608"},"PeriodicalIF":5.6,"publicationDate":"2025-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13089391/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145184499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Acellular Scaffolds for Muscle Regeneration: Advances and Challenges.","authors":"Jessica Mroueh, Luisa Weber, Yori Endo, Vanessa Mroueh, Indranil Sinha","doi":"10.1089/wound.2024.0049","DOIUrl":"10.1089/wound.2024.0049","url":null,"abstract":"<p><p><b>Significance:</b> Volumetric muscle loss is defined as composite loss of muscle mass. Severe injuries result in permanent functional impairment. Treatment options are limited. Tissue engineering techniques utilizing scaffolds offer promise as a potential therapy. <b>Recent Advances:</b> Emerging strategies, including bioactive molecules and growth factors in biocompatible scaffolds, may promote muscle regeneration following severe injury. In this context, scaffolds can act as a drug-delivery device, provide guidance to cells as a supporting matrix, and slowly release growth factors to promote healing. <b>Critical Issues:</b> Scaffolds engraftment and ability to promote tissue regeneration in injured beds remain limited. Tuning and optimizing scaffold fiber diameter, alignment, cellular cues, growth factor delivery, and porosity will be important in reconstituting functional skeletal muscle following loss. <b>Future Directions:</b> Our mechanistic understanding of interactions between biomimetic scaffolds and host tissue is still evolving, and future research can identify factors to promote tissue regeneration.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"569-587"},"PeriodicalIF":5.6,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advances in wound carePub Date : 2025-10-01Epub Date: 2025-03-11DOI: 10.1089/wound.2024.0074
Charles D Hwang, Seamus P Caragher, Rebekah J Bihun, Kyle R Eberlin
{"title":"Bridging the Gap: Contemporary Paradigms in Nerve Scaffolds and Regeneration.","authors":"Charles D Hwang, Seamus P Caragher, Rebekah J Bihun, Kyle R Eberlin","doi":"10.1089/wound.2024.0074","DOIUrl":"10.1089/wound.2024.0074","url":null,"abstract":"<p><p>Peripheral nerve injuries, especially those with complete transection of major nerves, create significant morbidity including debilitating pain, loss of protective haptic feedback, and impaired volitional control of musculature. The societal burden and cost of medical care for these injuries are enormous, with estimates in the United States alone in excess of $670 million per year. In clinical scenarios with a segmental nerve gap where end-to-end coaptation without tension is not possible, a \"bridge\" or scaffold must be interposed to facilitate communication between the proximal and distal stumps to facilitate organized growth following Wallerian degeneration. A multitude of constructs have been created and studied to facilitate this regeneration. Among the three overall types of bridge employed in contemporary clinical care-conduit/scaffold, allograft, and autograft-each has significant downsides ranging from limited successful nerve ingrowth to donor site morbidity. Despite the tremendous work over the last 150 years in nerve biology and medical technology for the treatment of peripheral nerve injury, the biological processes governing nerve regeneration remain incompletely understood. Especially in cases of long segmental gaps, there remains room for significant improvement. Ongoing studies have identified several promising modalities for nerve scaffolds to facilitate more efficient and effective neuronal outgrowth but still require further investigation. Here, we review contemporary paradigms in the treatment of segmental nerve injuries with interposing scaffolds and reexamine nerve physiology, regulatory programs in nerve regeneration, and strategic targets for neurogenic pathways that may facilitate novel treatment modalities.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"528-551"},"PeriodicalIF":5.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12629690/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143603315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advances in wound carePub Date : 2025-10-01Epub Date: 2025-04-30DOI: 10.1089/wound.2024.0108
Anish Vasan, Suntae Kim, Emily Davis, Daniel S Roh, Jeroen Eyckmans
{"title":"Advances in Designer Materials for Chronic Wound Healing.","authors":"Anish Vasan, Suntae Kim, Emily Davis, Daniel S Roh, Jeroen Eyckmans","doi":"10.1089/wound.2024.0108","DOIUrl":"10.1089/wound.2024.0108","url":null,"abstract":"<p><p><b>Significance:</b> Nonhealing or chronic wounds represent a significant and growing global health concern, imposing substantial burdens on individuals, health care systems, and economies worldwide. Although the standard-of-care treatment involves the application of wound dressings, most dressing materials are not specifically designed to address the pathological processes underlying chronic wounds. This review highlights recent advances in biomaterial design tailored to chronic wound healing. <b>Recent Advances:</b> Chronic wounds are characterized by persistent inflammation, impaired granulation tissue formation, and delayed re-epithelialization. Newly developed designer materials aim to manage reactive oxygen species and extracellular matrix degradation to suppress inflammation while promoting vascularization, cell proliferation, and epithelial migration to accelerate tissue repair. <b>Critical Issues:</b> Designing optimal materials for chronic wounds remains challenging due to the diverse etiology and a multitude of pathological mechanisms underlying chronic wound healing. While designer materials can target specific aberrations, designing a materials approach that restores all aberrant wound-healing processes remains the Holy Grail. Addressing these issues requires a deep understanding of how cells interact with the materials and the complex etiology of chronic wounds. <b>Future Directions:</b> New material approaches that target wound mechanics and senescence to improve chronic wound closure are under development. Layered materials combining the best properties of the approaches discussed in this review will pave the way for designer materials optimized for chronic wound healing.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"552-568"},"PeriodicalIF":5.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12629684/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143958946","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advances in wound carePub Date : 2025-10-01Epub Date: 2025-01-13DOI: 10.1089/wound.2024.0076
Manaav K S Mehta, Hanna E Englander, Ajay Rao, Nicholas Jarostchuk, Giorgio Giatsidis
{"title":"Acellular Adipose Matrices Seem to Be an Effective and Safe Strategy for Soft Tissue Regeneration and Volume Restoration: A Systematic Review of Clinically Relevant Literature.","authors":"Manaav K S Mehta, Hanna E Englander, Ajay Rao, Nicholas Jarostchuk, Giorgio Giatsidis","doi":"10.1089/wound.2024.0076","DOIUrl":"10.1089/wound.2024.0076","url":null,"abstract":"<p><p><b>Significance:</b> Autologous adipose tissue grafting (AAG) can provide soft tissue reconstruction in congenital defects, traumatic injuries, cancer care, or cosmetic procedures; over 94,000 AAG procedures are performed in the United States every year. Despite its effectiveness, the efficiency of AAG is limited by unpredictable adipocyte survival, impacting graft volume retention (26-83%). <b>Recent Advances:</b> Acellular adipose matrices (AAMs) have emerged as a potential alternative to AAG. AAMs include adipose tissue-derived extracellular matrix (ECM) and growth factors (GFs), but not cells. When grafted, AAMs serve as scaffolds with biochemical and biophysical cues for local cell (especially adipocytes) proliferation, regenerating soft tissue, and restoring volume. Being acellular, the AAM is not limited by adipocyte necrosis/apoptosis. <b>Critical Issues:</b> Research on AAM has mostly been conducted on small animal models and with small grafts. Clinically relevant AAM research (large animal models and/or clinical trials) is sparse and limited. To address this gap, we conducted a systematic review of clinically relevant AAM literature to assess AAM's clinical efficacy and safety. Across 11 human and 1 porcine study involving reconstructive or cosmetic procedures, we found that AAMs resulted in significant volume retention, adipogenesis, and angiogenesis, without notable adverse effects. <b>Future Directions:</b> Available quantitative and qualitative data suggest that AAM is an effective and safe alternative to AAG. Yet, the current literature is still limited; more robustly designed studies with standardized methods to assess outcomes will help validate these positive preliminary findings, and possibly pave the way for a broader clinical adoption of AAM. [Figure: see text].</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"513-527"},"PeriodicalIF":5.7,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142969260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advances in wound carePub Date : 2025-09-01Epub Date: 2024-11-12DOI: 10.1089/wound.2024.0081
Louai Alrata, Dahlia Abdulsattar, Sabrina Madrigal, Sophia R Pyeatte, Mohamed Zaghloul, Wahid Abu-Amer, Batool Arif, Tarek Alhamad, Maria Remedi, Yiing Lin, Mohamed A Zayed
{"title":"Alginate Formulation for Wound Healing Applications.","authors":"Louai Alrata, Dahlia Abdulsattar, Sabrina Madrigal, Sophia R Pyeatte, Mohamed Zaghloul, Wahid Abu-Amer, Batool Arif, Tarek Alhamad, Maria Remedi, Yiing Lin, Mohamed A Zayed","doi":"10.1089/wound.2024.0081","DOIUrl":"10.1089/wound.2024.0081","url":null,"abstract":"<p><p><b>Significance:</b> Alginate, sourced from seaweed, holds significant importance in industrial and biomedical domains due to its versatile properties. Its chemical composition, primarily comprising β-D-mannuronic acid and α-L-guluronic acid, governs its physical and biological attributes. This polysaccharide, extracted from brown algae and bacteria, offers diverse compositions impacting key factors such as molecular weight, flexibility, solubility, and stability. <b>Recent Advances:</b> Commercial extraction methods yield soluble sodium alginate essential for various biomedical applications. Extraction processes involve chemical treatments converting insoluble alginic acid salts into soluble forms. While biosynthesis pathways in bacteria and algae share similarities, differences in enzyme utilization and product characteristics are noted. <b>Critical Issues:</b> Despite its widespread applicability, challenges persist regarding alginate's stability, biodegradability, and bioactivity. Further understanding of its interactions in complex biological environments and the optimization of extraction and synthesis processes are imperative. Additionally, concerns regarding immune responses to alginate-based implants necessitate thorough investigation. <b>Future Directions:</b> Future research endeavors aim to enhance alginate's stability and bioactivity, facilitating its broader utilization in regenerative medicine and therapeutic interventions. Novel approaches focusing on tailored hydrogel formations, advanced drug delivery systems, and optimized cellular encapsulation techniques hold promise. Continued exploration of alginate's potential in tissue engineering and wound healing, alongside efforts to address critical issues, will drive advancements in biomedical applications.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"467-478"},"PeriodicalIF":5.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142611749","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Advances in wound carePub Date : 2025-09-01Epub Date: 2025-02-05DOI: 10.1089/wound.2024.0053
Carson Hoffmann, Dennis Foster, Emma Fletcher, Maiko Sasaki, Feifei Li, Dylan McLaughlin, Xiangqin Cui, Panagiotis Koutakis, Jarrod A Call, Luke Brewster
{"title":"Structured Exercise Therapy Increases Endogenous Antioxidants to Repair Muscle Strength and Health in Porcine Ischemic Myopathy Model of Peripheral Artery Disease.","authors":"Carson Hoffmann, Dennis Foster, Emma Fletcher, Maiko Sasaki, Feifei Li, Dylan McLaughlin, Xiangqin Cui, Panagiotis Koutakis, Jarrod A Call, Luke Brewster","doi":"10.1089/wound.2024.0053","DOIUrl":"10.1089/wound.2024.0053","url":null,"abstract":"<p><p><b>Objective:</b> The mechanisms of structured exercise therapy (SET) in peripheral artery disease (PAD) are not clear. We have developed an SET module for our large animal model of ischemic myopathy. We hypothesized that SET would increase muscle strength and walking distance in this model. The objective was to discover the SET-dependent mechanisms involved in this process. <b>Approach:</b> After induction of unilateral hind limb ischemia, three animals were exposed to standard environmental enrichment (sedentary or SED) and four animals underwent SET thrice weekly for 4 weeks postoperatively. Walking, hind limb pressure indices, and strength testing were performed weekly. Terminal muscle samples were used for skeletal muscle testing. <b>Results:</b> SET animals increased walking distance over time. SET increased muscle strength in both the ischemic and nonischemic limb. When comparing the ischemic SED hind limb muscle with that of ischemic + SET, the SET group has improved respiration and decreased oxidative stress. Markers of cell death and impaired functional regeneration were increased in SED ischemic muscles but returned toward baseline in the SET ischemic muscle. <b>Innovation:</b> This study uses a validated, large animal model of ischemic myopathy similar to that seen in humans with PAD. The effects of exercise on limb function, strength, and skeletal muscle health are reported in this model. <b>Conclusion:</b> SET increases muscle strength and regeneration by increasing endogenous antioxidants and mitochondrial respiration, resulting in favorable muscle health despite ongoing ischemia. This model may assist in preclinical testing of PAD therapies designed to improve muscle health.</p>","PeriodicalId":7413,"journal":{"name":"Advances in wound care","volume":" ","pages":"450-466"},"PeriodicalIF":5.7,"publicationDate":"2025-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}