张震宇

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27 8月 2019

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Author : 伤口世界

擅长糖尿病足治疗广东药科大学附属第三医院内分泌科主任医师

Latest from 伤口世界

An Acid-Oxidising Solution Containing Hypochlorous Acid Reduces Staphylococcus aureus and Improves Bacterial Diversity in Epidermolysis Bullosa Wounds
Topical hypochlorite ameliorates NF-κB–mediated skin diseases in mice
Salvage of Infected Orthopedic Hardware With Intraoperative and Postoperative Hypochlorous Acid Instillations
Kick-Starting Wound Healing: A Review of Pro-Healing Drugs
Comparative assessment of commercially available wound gels in ex vivo human skin reveals major differences in immune response‑modulatory effects

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An Acid-Oxidising Solution Containing Hypochlorous Acid Reduces Staphylococcus aureus and Improves Bacterial Diversity in Epidermolysis Bullosa Wounds 2026-10-31 00:00

Xiaolong A. Zhou¹ | Michael B. Burns² | Ziyou Ren¹ | Elise Stagaman² | Stefan J. Green³ | Lok Yiu Ashley Wu³ | Lynna Yang¹ | Stephanie Rangel¹ | Lydia Rabbaa1 | Amy S. Paller¹

¹Department of Dermatology, Northwestern University, Feinberg School of Medicine, Chicago, Illinois, USA |²Department of Biology, Loyola University Chicago, Chicago, Illinois, USA | ³Genomics and Microbiome Core Facility, Rush University Medical Center, Chicago, Illinois, USA

Correspondence: Amy S. Paller (该Email地址已收到反垃圾邮件插件保护。要显示它您需要在浏览器中启用JavaScript。)

Received: 6 February 2025 | Revised: 6 June 2025 | Accepted: 3 August 2025

Funding: This work was supported by Applied Pharma Research.

Keywords: acid-oxidising solution | epidermolysis bullosa | hypochlorous acid | microbiome | Staphylococcus aureus | wounds

ABSTRACT

Epidermolysis bullosa (EB) is a group of rare genetic skin disorders characterised by skin fragility and chronic, painful wounds that are highly susceptible to bacterial infection, particularly by Staphylococcus aureus (SA). This study evaluated the efficacy of an acid-oxidising solution containing hypochlorous acid (HOCl) in reducing SA colonisation, promoting wound healing, and restoring a healthier microbiome in EB wounds. In a 12-week open-label pilot study, 15EB patients applied the HOCl-based spray (APR-TD011) daily to chronic wounds for 8weeks, with full-length 16S rRNA sequencing of wound swabs performed before, during, and after treatment. At baseline, 87% of patients were culture-positive for SA, and sequencing revealed that SA had the highest relative abundance (34%), followed by Acinetobacter guillouiae and Pseudomonas poae. SA relative abundance decreased precipitously by Weeks 4 (to 11%) and 8 (primary endpoint; to 10%, p<0.01), and this effect persisted at 4weeks post-treatment (Week 12; to 9.7%), including for methicillin-resistant SA. Concurrently, bacterial diversity increased, and wound sizes dimin ished in correlation with reduced SA levels (r=0.64). Younger patients exhibited greater SA reduction trends. The treatment was well-tolerated, with minimal adverse effects and high patient satisfaction. This study underscores the role of microbial dysbiosis in EB wounds and highlights HOCl-based solutions as a promising therapy to mitigate pathogenic burden and enhance wound.
Topical hypochlorite ameliorates NF-κB–mediated skin diseases in mice 2026-10-30 00:00

Thomas H. Leung,^1,2 Lillian F. Zhang,¹ Jing Wang,¹ Shoucheng Ning,³ Susan J. Knox,³ and Seung K. Kim^1,4,5

¹Department of Developmental Biology, ²Department of Dermatology,³Department of Radiation Oncology,⁴Howard Hughes Medical Institute, and ⁵Department of Medicine, Oncology Division, Stanford University School of Medicine, Stanford, California, USA.

Nuclear factor-κB (NF-κB) regulates cellular responses to inflammation and aging, and alterations in NF-κB signaling underlie the pathogenesis of multiple human diseases. Effective clinical therapeutics targeting this pathway remain unavailable. In primary human keratinocytes, we found that hypochlorite (HOCl) reversibly inhibited the expression of CCL2 and SOD2, two NF-κB–dependent genes. In cultured cells, HOCl inhibited the activity of inhibitor of NF-κB kinase (IKK), a key regulator of NF-κB activation, by oxidizing cysteine residues Cys114 and Cys115. In NF-κB reporter mice, topical HOCl reduced LPS-induced NF-κB signaling in skin. We further evaluated topical HOCl use in two mouse models of NF-κB–driven epidermal disease. For mice with acute radiation dermatitis, topical HOCl inhibited the expression of NF-κB–dependent genes, decreased disease severity, and prevented skin ulceration. In aged mice, topical HOCl attenuated age-dependent production of p16INK4a and expression of the DNA repair gene Rad50. Additionally, skin of aged HOCl-treated mice acquired enhanced epidermal thickness and proliferation, comparable to skin in juvenile animals. These data suggest that topical HOCl reduces NF-κB–mediated epidermal pathology in radiation dermatitis and skin aging through IKK modulation and motivate the exploration of HOCl use for clinical aims.
Salvage of Infected Orthopedic Hardware With Intraoperative and Postoperative Hypochlorous Acid Instillations 2026-10-29 00:00

Eric Clayman, MD; Zackery Beauchamp, BS; Jared Troy, MD

Abstract

Background. Orthopedic hardware infections often require hardware removal or replacement. In some situations, hardware removal is not possible or would require amputation. Thus, a method of in-situ hardware salvage could significantly improve patient outcomes. Hypochlorous acid is a broad-spectrum antimicrobial solution with rapid effectiveness in biofilm impairment.

Methods. This article presents 2 patients with orthopedic hardware infection. Patient A had recurrent draining sinuses from an intramedullary nail in the femur. The orthopedic surgery team recommended above-knee amputation if hardware salvage was not possible. Patient B had a degloving injury of the right upper extremity with radius and ulna fractures that required revascularization and free flap coverage; when hardware infection developed, hardware removal would have required external fixator placement. In both patients, hypochlorous acid was used intraoperatively during debridement to soak the hardware for 5 minutes. Closed suction drains were placed along the hardware, and postoperative instillations of hypochlorous acid were placed through the drains for 5 minutes 1 to 2 times a day for 4 days for Patient A and 7 days for Patient

Results. On follow-up at 10 months for Patient A and at 9 months for Patient B, there was no evidence of recurrent hardware infection. Hardware was successfully salvaged in both patients.

Conclusions. Hypochlorous acid is an effective and safe topical antimicrobial agent for recurrent infections due to hardware-associated biofilm. Postoperative instillations of 0.025% hypochlorous acid through closed suctions drains may improve hardware salvage rates and optimize

Keywords PhaseOne Hypochlorous Acid Hardware Salvage Infected Hardware Biofilm

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主任医师、教授、博导，南方医科大学第三附属医院（广东省骨科医院）院长

张震宇

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主任医师、教授、博导，南方医科大学第三附属医院（广东省骨科医院）院长

张震宇

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