scholarly journals Therapeutic Targeting of Neutrophil Extracellular Traps Improves Primary and Secondary Intention Wound Healing in Mice

2021 ◽  
Vol 12 ◽  
Author(s):  
Annika Heuer ◽  
Carolin Stiel ◽  
Julia Elrod ◽  
Ingo Königs ◽  
Deirdre Vincent ◽  
...  
Keyword(s):  
Wound Healing ◽  
Wound Closure ◽  
Thermal Injury ◽  
Neutrophil Activation ◽  
Extracellular Traps ◽  
Secondary Intention ◽  
Closure Time ◽  
Injury Group ◽  
Dnase Treatment ◽  
Laparotomy Group

BackgroundNeutrophils are the first responders in wound healing after injury that mediate pro- and anti-inflammatory activities i.a. through the formation of extracellular traps (NETs). However, excessive NETs presence in wound tissue can cause local hyperinflammation and -coagulation resulting in delayed wound healing. To improve wound healing, we aimed to examine the role of NETs and DNase1 on primary and secondary wound healing.MethodsThe study included 93 C57BL/6 mice, with 3 different genotypes: wildtype, Pad4-, and DNase1-Knockout (KO). Pad4-KO mice show limited NETs formation, while DNase1-KO mice cannot disintegrate them. All 3 genotypes were included in (1) a laparotomy group and (2) a thermal injury group. Animals in both groups either received DNase1 or a vehicle i.p. post wound induction and wound assessment and euthanasia were conducted. Laparotomy and burn scars were assessed using the stony brook scar evaluation scale and modified Yeong scale respectively. Tissue was analyzed histologically using H&E staining. Ly6g, Collagen I and III, SMA, and Fibrinogen were visualized and neutrophils activation (NE, MPO) and NETs (H3cit) formation assessed.ResultsAll animals survived with no complications. DNase1 treatment led to a significantly improved scar appearance in both groups, which was also seen in Pad4-KO mice. In the laparotomy group DNase1 improved collagen deposition and fibrin concentration was significantly reduced by DNase1 treatment. Markers of neutrophil activation were significantly reduced in the treatment and Pad4-KO group. In the thermal injury group wound closure time was significantly reduced after DNase1 treatment and in the Pad4-KO group. Even though inflammation remained high in the thermal injury model over time, neutrophil activation and NETs formation were significantly reduced by DNase1 treatment compared to controls.DiscussionPrimary and secondary intention wound healing is improved by targeting NETs through DNase1 treatment or genetic KO, as assessed by wound closure time and scar appearances. Additionally, wound stability was not affected by DNASE treatment. The results suggest that overall wound healing is accelerated and DNase1 appears to be a promising option to reduce scar formation; which should be evaluated in humans.

scholarly journals Surgical glue- a promising technology for wound healing

2018 ◽  
Vol 1 (1) ◽  
pp. 9-11
Author(s):  
K. V. Swathi Krishna ◽  
L. S. Uma Maheswari ◽  
G Rajeswari
Keyword(s):  
Wound Healing ◽  
Cost Effectiveness ◽  
Wound Closure ◽  
Cost Effective ◽  
Daily Basis ◽  
Skin Closure ◽  
Tissue Glue ◽  
Closure Time ◽  
Anesthesia Awareness ◽  
Long Time

Wound closure is one of the important steps of surgical dressing and suturing is the most commonly used method of wound closure. The process of suturing takes very long time for surgery and increases the patient’s risk of anesthesia awareness. Skin glues are a safe and effective method to close selected wounds. They are also cost-effective and help prevent infection. Ideally, wounds should be less than 4 cm, not contaminated or infected and have skin edges that are not under tension. Wounds should be closed within 12 hours. Novel methods of wound closure have been introduced to address these issues, most notably cyanoacrylate tissue glues. The evidence would suggest that the use of cyanoacrylate tissue glue is associated with a reduction in closure time and costs. On a daily basis, dermasurgeons are facing different kinds of wounds that have to be closed. With a plethora of skin closure materials currently available, choosing a solution that combines excellent and rapid cosmetic results with practicality and cost-effectiveness is preferred.

Principles of Wound Management and Soft Tissue Repair I

2018 ◽  
Author(s):  
Jonathan S. Friedstat ◽  
Michelle R Coriddi ◽  
Eric G Halvorson ◽  
Joseph J Disa
Keyword(s):  
Wound Healing ◽  
Soft Tissue ◽  
Wound Closure ◽  
Free Tissue Transfer ◽  
Skin Grafting ◽  
Free Flaps ◽  
Wound Management ◽  
Soft Tissue Coverage ◽  
Contamination Assessment ◽  
Secondary Intention

Principles of initial wound management include adequate debridement, bacterial contamination assessment, nutritional optimization, and moist wound healing versus the use of negative-pressure wound therapy. The main goals of coverage procedures are to achieve a healed wound and avoid infection. Aside from allowing to heal by secondary intention, options for wound closure include primary closure, skin grafting, local flaps, and free flaps. Each wound should be evaluated on an individual basis to determine which method of coverage is most appropriate. This review contains 13 figures, 2 tables, and 22 references. Key Words: free tissue transfer, pedicle flaps, soft-tissue coverage, wound closure, wound healing, wound management, wound reconstruction, tissue flaps

Definitive Wound Closure Techniques in Fournier's Gangrene

2018 ◽  
Vol 84 (1) ◽  
pp. 86-92
Author(s):  
Margaret Lauerman ◽  
Olga Kolesnik ◽  
Habeeba Park ◽  
Laura S. Buchanan ◽  
William Chiu ◽  
...  
Keyword(s):  
Wound Healing ◽  
Confidence Interval ◽  
Odds Ratio ◽  
Primary Closure ◽  
Wound Closure ◽  
Fournier’S Gangrene ◽  
Fournier's Gangrene ◽  
Secondary Intention ◽  
Primary Wound Closure

Necrotizing soft tissue infection of the perineum, or Fournier's gangrene (FG), is a morbid and mortal diagnosis. Despite the severity of FG, the optimal definitive wound closure strategy is unknown, as are long-term wound outcomes. A retrospective review was performed over a 3-year period at a single trauma center. Patients were managed according to our institutional approach focusing on primary wound closure and secondary intention healing in residual wounds. Overall 168 patients were included. Complete primary wound closure was accomplished in 39.9 per cent of patients. Patients undergoing primary wound closure were primarily male (89.6 vs 64.4%, P < 0.001), had lower mean sequential organ failure assessment (SOFA) scores (1.70 ± 2.30 vs 2.98 ± 3.36, P = 0.004), more often had perineum-limited FG (67.2 vs 42.6%, P = 0.003), and required fewer debridements (2.40 vs 2.79, P = 0.02). On logistic regression, predictors of primary closure included gender (odds ratio 4.643, 95% confidence interval 1.885–11.437, P = 0.001) and SOFA score (odds ratio 0.834, 95% confidence interval 0.727–0.957, P = 0.01). Wound healing rates increased over time, to an 82.1 per cent wound healing rate without further intervention at greater than six months of follow-up. Wounds healed with secondary intention ranged from 70 to 9520 cm3 and primary closure ranged from 126 to 6912 cm3, whereas wounds requiring skin grafts ranged from 405 to 16,170 cm3. Complete primary wound closure is often achievable in FG patients. Using this standardized approach to FG wound management, even large wounds and wounds undergoing secondary intention healing will often close with long-term wound care and do not require flap creation or early skin grafting.

scholarly journals PENGARUH LUMATAN DAUN PLETEKAN (Ruellia Tuberosa L) TERHADAP LAMA PENUTUPAN LUKA PADA TIKUS PUTIH (Rattus Novergicus)

2017 ◽  
Vol 4 (2) ◽  
pp. 104
Author(s):  
Ria Susana ◽  
Rismia Agustina ◽  
Abdurahman Wahid
Keyword(s):  
Wound Healing ◽  
Treatment Group ◽  
Random Sampling ◽  
Wound Closure ◽  
Simple Random Sampling ◽  
Male Rats ◽  
Control Group ◽  
P Value ◽  
Closure Time ◽  
Significant Difference

ABSTRAKLuka didefinisikan sebagai gangguan pada fungsi dan integritas jaringan tubuh. Penyembuhan luka merupakan proses yang kompleks dari perbaikan dan remodeling jaringan sebagai respon terhadap cedera. Pletekan (ruellia tuberosa l) mengandung flavonoid, glikosida, phenol, saponin dan nutrisi yang diharapkan mempercepat penyembuhan luka. Tujuan penelitian ini adalah mengidentifikasi pengaruh  lumatan daun pletekan (ruellia tuberosa l) terhadap lama penutupan luka pada tikus putih (rattus novergicus). Penelitian ini merupakan studi eksperimental dengan rancangan posttest only control, menggunakan teknik simple random sampling. Sampel yang digunakan sebanyak 40 ekor tikus jantan dengan luka insisi bersih sepanjang 3 cm yang dibagi menjadi 2 kelompok yaitu kelompok kontrol dan kelompok perlakuan. Data yang diukur adalah rata-rata lama penutupan luka. Data yang diperoleh dianalisis menggunakan uji mann-whitney dengan derajat kepercayaan 95% menunjukkan perbedaan yang signifikan rata-rata lama penutupan luka antara kelompok kontrol (8,45) dan kelompok perlakuan (3,75) dengan p-value 0,000 (p<0,05). Kesimpulan penelitian ini adalah terdapat pengaruh lumatan daun  pletekan (ruellia tuberosa l) terhadap lama penutupan luka pada tikus putih (rattus novergicus).Kata-kata kunci: luka insisi bersih, pletekan (ruellia tuberosa l), lama penutupan luka.ABSTRACTWounds is defined as disruption of the function and integrity of body tissues. Wound healing isa complex process of tissue repair and remodelling in response to injury. Pletekan (ruellia tuberosa l) contains flavonoids, glycosides, phenols, saponins and nutritive value that suppose to accelerate wound healing. The purpose of this study was to identify the effect of pletekan leaves (ruellia tuberosa) to wound closure time in rats (rattus novergicus). This research was an experimental study with post- test design using the simple random sampling technique. The samples were 40 male rats with a clean incision wound along 3 cm which were divided into two groups, control group and treatment group. The measured data were the average of wound closure time. Data were analyzed using the mann- whitney test with 95 % confidence level showed a significant difference between the control group (8,45) and the treatment group (3,75) with p-value 0,000 (p<0,005). There was significant effect of ruellia tuberosa l to wound closure time in rattus novergicus.Keywords: wounds, ruellia tuberosa , wound closure time.

Principles of Wound Management and Soft Tissue Repair I

2018 ◽  
Author(s):  
Jonathan S. Friedstat ◽  
Michelle R Coriddi ◽  
Eric G Halvorson ◽  
Joseph J Disa
Keyword(s):  
Wound Healing ◽  
Soft Tissue ◽  
Wound Closure ◽  
Free Tissue Transfer ◽  
Skin Grafting ◽  
Free Flaps ◽  
Wound Management ◽  
Soft Tissue Coverage ◽  
Contamination Assessment ◽  
Secondary Intention

Principles of initial wound management include adequate debridement, bacterial contamination assessment, nutritional optimization, and moist wound healing versus the use of negative-pressure wound therapy. The main goals of coverage procedures are to achieve a healed wound and avoid infection. Aside from allowing to heal by secondary intention, options for wound closure include primary closure, skin grafting, local flaps, and free flaps. Each wound should be evaluated on an individual basis to determine which method of coverage is most appropriate. This review contains 13 figures, 2 tables, and 22 references. Key Words: free tissue transfer, pedicle flaps, soft-tissue coverage, wound closure, wound healing, wound management, wound reconstruction, tissue flaps

Comparing the influence of two immunosuppressants (fingolimod, azathioprine) on wound healing in a rat model of primary and secondary intention wound closure

2018 ◽  
Vol 27 (1) ◽  
pp. 59-68
Author(s):  
Ricardo Ginestal ◽  
Bárbara Pérez-Köhler ◽  
Paloma Pérez-López ◽  
Marta Rodríguez ◽  
Gemma Pascual ◽  
...  
Keyword(s):  
Wound Healing ◽  
Rat Model ◽  
Wound Closure ◽  
Secondary Intention

Comparison of the ficus for the wound healing activity in various species

2020 ◽  
Vol 10 (4) ◽  
pp. 67-70
Author(s):  
Mothilal K ◽  
Akila CR ◽  
Mahender K ◽  
Chaitanya Kumar K ◽  
Ravi D
Keyword(s):  
Wound Healing ◽  
Wound Closure ◽  
Subcutaneous Tissue ◽  
Significant Activity ◽  
Herbal Extracts ◽  
Standard Drug ◽  
Excision Wound ◽  
Injuries And Wounds ◽  
Skin Conditions ◽  
Wound Healing Activity

Injuries and wounds are any sorts of damage to the skin or subcutaneous tissue. Usually, any wounds of such sorts are self-healed. Sometimes, there may be a delay in healing, and that delay is caused due to the functional delays in various processes of wound healing. All the Ficus plants show similar activities like the antioxidant, anti-inflammatory and wound healing properties 7including skin conditions like ulcers and rheumatism. The anthelmintic property and immunomodulatory are also seen. The herbal extracts of the same family of Ficus in different plants were investigated for the wound healing activity in the excision wound method, and the extracts showed significant activity compared to the drug. All the extracts showed a better healing ability, but the extract of FBO-100 showed the highest activity followed by FMO followed by FHO and finally the FRO. Overall, the activity of the extract ointment was comparable and was significant compared to the standard drug ointment. The wound closure of the extract ointment treated groups were better and were completed in 12 days, and the activity was more than 96%. The herbal extracts of the same family of Ficus in different plants were investigated for the wound healing activity in the excision wound method, and the extracts showed significant activity compared to the drug. The plants of microcarpa, benghalensis, religiosa and hispida are compared for the activity, and the order showed for the activity was FBO>FMO>FHO>FRO.

scholarly journals Overexpression of the Oral Mucosa-Specific microRNA-31 Promotes Skin Wound Closure

2019 ◽  
Vol 20 (15) ◽  
pp. 3679 ◽  
Author(s):  
Lin Chen ◽  
Alyne Simões ◽  
Zujian Chen ◽  
Yan Zhao ◽  
Xinming Wu ◽  
...  
Keyword(s):  
Wound Healing ◽  
Oral Mucosa ◽  
Wound Closure ◽  
Expression Patterns ◽  
Skin Wound ◽  
Skin Wound Healing ◽  
Specific Expression ◽  
Keratinocyte Proliferation

Wounds within the oral mucosa are known to heal more rapidly than skin wounds. Recent studies suggest that differences in the microRNAome profiles may underlie the exceptional healing that occurs in oral mucosa. Here, we test whether skin wound-healing can be accelerating by increasing the levels of oral mucosa-specific microRNAs. A panel of 57 differentially expressed high expresser microRNAs were identified based on our previously published miR-seq dataset of paired skin and oral mucosal wound-healing [Sci. Rep. (2019) 9:7160]. These microRNAs were further grouped into 5 clusters based on their expression patterns, and their differential expression was confirmed by TaqMan-based quantification of LCM-captured epithelial cells from the wound edges. Of these 5 clusters, Cluster IV (consisting of 8 microRNAs, including miR-31) is most intriguing due to its tissue-specific expression pattern and temporal changes during wound-healing. The in vitro functional assays show that ectopic transfection of miR-31 consistently enhanced keratinocyte proliferation and migration. In vivo, miR-31 mimic treatment led to a statistically significant acceleration of wound closure. Our results demonstrate that wound-healing can be enhanced in skin through the overexpression of microRNAs that are highly expressed in the privileged healing response of the oral mucosa.

scholarly journals Effect of photobiomodulation in secondary intention gingival wound healing—a systematic review and meta-analysis

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Pooya Ebrahimi ◽  
Mahdi Hadilou ◽  
Ferdos Naserneysari ◽  
Amirmohammad Dolatabadi ◽  
Rana Tarzemany ◽  
...  
Keyword(s):  
Systematic Review ◽  
Wound Healing ◽  
Clinical Trials ◽  
Randomized Clinical Trials ◽  
Meta Analysis ◽  
Healing Process ◽  
Adjunctive Treatment ◽  
Control Groups ◽  
Secondary Intention ◽  
Post Operative Pain

Abstract Background Photobiomodulation is widely being used to improve the wound healing process in dentistry and a vast majority of studies have proven its benefits. But there are plenty of knowledge gaps according to the optimal laser characteristics which should be used to maximize the healing effects of lasers. The goal of this systematic review and meta-analysis was to determine the effect of photobiomodulation (PBM) as an adjunctive treatment to periodontal therapies to evaluate secondary intention gingival wound healing and post-operative pain. Methods Five databases (PubMed, Embase, Scopus, ProQuest, and Web of Sciences) were searched up to November 30, 2020, for clinical trials that reported the result of the application of PBM on secondary gingival healing wounds and post-operative pain and discomfort after periodontal surgeries. Two independent reviewers selected the eligible studies and the outcomes of interest were extracted. The quality of eligible studies was assessed using the Cochrane Handbook for Systematic Reviews of Interventions. Results Ultimately, twelve studies were included in this review. The application of PBM as an adjunct to periodontal surgeries resulted in a significant improvement in wound healing indices. The Landry wound healing index at the 7th post-operative day was significantly improved (SMD = 1.044 [95% CI 0.62–1.46]; p < 0.01) in PBM + surgery groups compared to the control groups. There was also a statistically significant increase in the complete wound epithelialization (RR = 3.23 [95% CI 1.66–6.31]; p < 0.01) at the 14th post-operative day compared to the control groups. The methods used to assess the post-operative pain were heterogeneous, and therefore the results were limited which made the meta-analysis for post-operative pain assessment not possible. Conclusion Based on the results of this review, PBM can be effectively used as a method to improve secondary intention wound healing. High-quality randomized clinical trials, however, are needed in the future to identify the optimal PBM irradiation parameters and the effect of PBM on post-operative pain.

Sign in / Sign up

Export Citation Format

Share Document