scholarly journals Experimental Study of the Effect of Photobiomodulation Therapy on the Regulation of the Healing Process of Chronic Wounds

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Sergey B. Pavlov ◽  
Nataliia M. Babenko ◽  
Marina V. Kumetchko ◽  
Olga B. Litvinova ◽  
Rostyslav N. Mikhaylusov
Keyword(s):  
Wound Healing ◽  
Growth Factors ◽  
Platelet Aggregation ◽  
Chronic Wounds ◽  
Healing Process ◽  
Interleukin 10 ◽  
Photobiomodulation Therapy ◽  
Control Group ◽  
Necrosis Factor Alpha ◽  
Aggregation Activity

Currently, wound treatment is an urgent task of medicine around the world. In the process of wound healing, various types of cells are involved under the control and regulation of cytokines and growth factors. Disruption of the synchronization process between the various types of cells and intercellular mediators involved in the restoration of tissue damage can lead to impaired healing and the development of chronic wounds. Photobiomodulation (PBM) therapy promotes platelet activation and aggregation, reduces inflammation and oxidative stress, and accelerates cell migration and proliferation. PBM also induces the production of the extracellular matrix and the release of key growth factors, thereby improving tissue regeneration and accelerating wound healing. The aim of our work was to study the effect of photobiomodulation therapy on the regulation of reparative processes in chronic wounds monitored by biomarkers and platelet aggregation activity. 54 Wistar rats were divided into three groups. Intact animals were not manipulated. In animals of the control and experimental groups, a chronic wound was simulated by reproducing the conditions of local hypoxia and microcirculation disorders. The wounds of the experimental group received PBM therapy. The device Lika-therapist M (Ukraine) was used in a continuous mode at a wavelength of 660 nm, an output power of 10 mW, and an energy density of 1 J/cm2. The wounds of the animals in the control group were treated with sham. The animals were euthanized on days 3, 7, 14, and 28 after the surgery (6 animals, each from the control and experimental groups). Measurements of the levels of interleukin-6 (IL-6), interleukin-10 (IL-10), tumor necrosis factor alpha (TNF-α), the basic fibroblast growth factor (bFGF), and reactive oxygen species (ROS) were carried out by ELISA. Results revealed the multidirectional effect of PBM therapy on the expression of the studied biomarkers. The results of the histological examination indicated a positive effect of PBM therapy with the applied parameters on the repair processes of chronic wounds. We concluded that the use of PBM therapy made it possible to regulate disturbances in reparative processes by modulating ROS, cytokines, and platelet aggregation activity.

scholarly journals Silk derived formulations for accelerated wound healing in diabetic mice

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10232
Author(s):  
Muniba Tariq ◽  
Hafiz Muhammad Tahir ◽  
Samima Asad Butt ◽  
Shaukat Ali ◽  
Asma Bashir Ahmad ◽  
...  
Keyword(s):  
Wound Healing ◽  
Silk Fibroin ◽  
Chronic Wounds ◽  
Histological Analysis ◽  
Healing Process ◽  
Aloe Vera ◽  
Wound Contraction ◽  
Wound Dressings ◽  
Control Group ◽  
Diabetic Mice

Background The present study aimed to prepare effective silk derived formulations in combination with plant extract (Aloe vera gel) to speed up the wound healing process in diabetic mice. Methods Diabetes was induced in albino mice by using alloxan monohydrate. After successful induction of diabetes in mice, excision wounds were created via biopsy puncture (6 mm). Wound healing effect of silk sericin (5%) and silk fibroin (5%) individually and in combination with 5% Aloe vera gel was evaluated by determining the percent wound contraction, healing time and histological analysis. Results The results indicated that the best biocompatible silk combination was of 5% silk fibroin and 5% Aloe vera gel in which wounds were healed in 13 days with wound contraction: 98.33 ± 0.80%. In contrast, the wound of the control group (polyfax) healed in 19 day shaving 98.5 ± 0.67% contraction. Histological analysis revealed that the wounds which were treated with silk formulations exhibited an increased growth of blood vessels, collagen fibers, and much reduced inflammation. Conclusion It can be concluded that a combination of Bombyx mori silk and Aloe vera gel is a natural biomaterial that can be utilized in wound dressings and to prepare more innovative silk based formulations for speedy recovery of chronic wounds.

The Role of Autologous PRP on Deep Partial-Thickness Burn Wound Healing in Bama Pigs

2020 ◽  
Vol 41 (3) ◽  
pp. 657-662 ◽  
Author(s):  
Yanwei Sun ◽  
Yongqian Cao ◽  
Ran Zhao ◽  
Famei Xu ◽  
Dan Wu ◽  
...  
Keyword(s):  
Wound Healing ◽  
Growth Factors ◽  
Growth Factor ◽  
Healing Process ◽  
Control Group ◽  
Therapeutic Effects ◽  
Partial Thickness ◽  
Partial Thickness Burn ◽  
The Mean ◽  
Partial Thickness Burns

Abstract In this study, we aimed to evaluate the therapeutic effects of autologous platelet-rich plasma (PRP) on deep partial-thickness burns in Bama pigs. Deep partial-thickness burn wounds were created on the back of Bama pigs. The reepithelialization time was compared between the PRP and control groups. The mean score of Ki67 (+) cells and α-SMA (+) vessels, the mean thickness of epidermis and dermis of the healing wounds were determined via H&E staining and immunohistochemical assay. The levels of the growth factors epidermal growth factor (EGF), basic fibroblast growth factor (bFGF), and vascular endothelial growth factor (VEGF) were examined by ELISA. Our data showed that the time to wound reepithelialization was shorter in the PRP group compared with the control group. The thickness of the epidermis was larger in the PRP group compared with the control group. On the 7th and 14th days after the treatment, the mean score of Ki67 (+) cells and α-SMA (+) vessels were higher in the PRP group compared with the control group. The PRP group showed higher levels of growth factors (EGF, bFGF, and VEGF) compared with the control group by ELISA. The results indicated that PRP could improve wound healing process of deep partial-thickness burns in Bama pigs. The PRP increased the thickness of epidermis of the healed wounds, cell proliferation, and angiogenesis. We demonstrated that applying PRP had a greater potential for the treatment of deep partial-thickness burns.

scholarly journals Effect of Photobiomodulation Therapy on Oxidative Stress Markers in Healing Dynamics of Diabetic Neuropathic Wounds in Wistar Rats

2021 ◽  
Author(s):  
Gagana Karkada ◽  
G. Arun Maiya ◽  
Praveen Arany ◽  
Mohandas Rao ◽  
Shalini Adiga ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Wound Healing ◽  
Wistar Rats ◽  
Healing Process ◽  
Photobiomodulation Therapy ◽  
Control Group ◽  
Sciatic Nerve Crush ◽  
Oxidative Stress Markers ◽  
Stress Markers ◽  
Experimental Group

Abstract Background Prolonged and overlapping phases of wound healing in diabetes are mainly due to the redox imbalance resulting in the chronicity of the wound. Photobiomodulation therapy works on the principle of absorption of photon energy and its transduction into a biological response in the living tissue. It alleviates the cellular responses, thereby improving the mechanism of wound healing in diabetes. Objective To find out the effect of photobiomodulation therapy of dosage 4 J/cm2 in the healing dynamics of diabetic neuropathic wounds in Wistar rats and its relation with oxidative stress markers. Methodology Diabetes was induced using Streptozotocin of 60 mg/kg of body weight to eighteen female Wistar rats. Neuropathy was induced by the sciatic nerve crush injury followed by an excisional wound of 2 cm2 on the back of the animal. Experimental group animals were treated with dosage 4 J/cm2 of wavelength 655 and 808 nm, and control group animals were kept unirradiated. The biomechanical, histopathological, and biochemical changes were analysed in both groups. Results There was a reduction in mean wound healing time and an increased rate of wound contraction in the experimental group animals compared to its control group. The experimental group showed improved redox status, and histopathological findings revealed better proliferative cells, keratinisation, and epithelialization than un-irradiated controls. Conclusions Photobiomodulation therapy of dosage 4 J/cm2 enhanced the overall wound healing dynamics of the diabetes-induced neuropathic wound and optimised the oxidative status of the wound, thereby facilitating a faster healing process.

scholarly journals Antioxidant dressing therapy versus standard wound care in chronic wounds (REOX study): Study protocol for a randomized controlled trial

2020 ◽  
Author(s):  
Inés María Comino-Sanz ◽  
María Dolores López-Franco ◽  
Begoña Castro ◽  
Pedro Luis Pancorbo-Hidalgo
Keyword(s):  
Wound Healing ◽  
Randomized Controlled Trial ◽  
Wound Dressing ◽  
Chronic Wounds ◽  
Chronic Wound ◽  
Controlled Trial ◽  
Healing Process ◽  
Intervention Group ◽  
Control Group ◽  
Randomized Controlled

Abstract Background: A wound that does not heal in the orderly stages of the healing process or does not heal within three months is considered a chronic wound. Wound healing is impaired when the wound remains in the inflammatory stage for too long. A range of factors can delay the healing process: imbalance between proteases and protease inhibitors in the wound bed; bacterial colonization and the presence of biofilm; and oxidative stress.Recently, wound management has improved significantly. A new antioxidant dressing has been developed, which combines an absorbent matrix obtained from Locust Bean Gum (LBG) galactomannan and a hydration solution with curcumin and N-acetylcysteine (NAC). This dressing combines the advantages of moist healing in exudate management and free radical neutralization, achieving wound reactivation.The primary aim of this study is to compare the effect of antioxidant dressing on chronic wound healing with the use of standard wound dressing in patients with hard-to-heal wounds.Methods: We will conduct a multicentre, single blinded, randomized, controlled trial with parallel groups. Participants will be selected from three primary public health-care centres, located in Andalucía (southern Spain). Patients will be randomized into an intervention group (antioxidant dressing) or control group (standard wound dressing). Assessment will be carried out in weeks 2, 4, 6 and 8. Follow-up will be of 8 weeks or complete healing, if it happens earlier.Discussion: The findings from this study should provide scientific evidence on the efficacy of the antioxidant dressing as an alternative for the treatment of chronic wounds. This study fills some of the gaps in the existing knowledge about patients with hard-to-heal wounds.Trial registration: ClinicalTrials.gov, NCT03934671. Registered on 2 May 2019.

scholarly journals Efficacy of negative pressure wound therapy using suction drain in the management of chronic wounds

2018 ◽  
Vol 5 (6) ◽  
pp. 2256 ◽  
Author(s):  
Mohammed Kashif Imran ◽  
Mohan Kumar K. ◽  
Sreeramulu P. N. ◽  
Bhaskaran . ◽  
Krishna Prasad K. ◽  
...  
Keyword(s):  
Wound Healing ◽  
Hospital Stay ◽  
Negative Pressure ◽  
Chronic Wounds ◽  
Adult Population ◽  
Healing Process ◽  
Wound Dressings ◽  
Control Group ◽  
Wound Healing Process ◽  
Topical Negative Pressure

Background: Chronic non-healing wounds are one of the major burden to the patients in the present era and covers about 1% of adult population and 3.6% of the population greater than 65 years. Chronic leg wounds are the common cause of morbidity and its prevalence in the community range from 1.9 to 13.1%. Indian studies show the prevalence of chronic wounds of around 4.5/1000 population. Recent studies have shown that application of a sub atmospheric pressure in a controlled manner to the wound site helps significantly in wound healing. Aim of the present study is to assess the efficacy of topical negative pressure moist wound dressings in wound healing process in chronic wounds and to prove that negative pressure dressings can be used as a much better treatment option than conventional saline dressings in the management of chronic wounds.Methods: After 10 days, in study group the mean rate of granulation tissue formation, mean graft, mean hospital stay was 81.7%,80.6%, 34.7 days respectively and the same in control group it is 41.9%. ,60.45%, 58.60 days respectively.Results: To conclude, topical negative pressure dressing’s help in faster healing of chronic wounds and better graft take up and reduces hospital stay of these patients.Conclusions: The database of our retrospective study regarding age and sex incidence, clinicopathological features and therapeutic outcome was comparable to other studies in various literatures.

scholarly journals Skin Wound Healing Process and New Emerging Technologies for Skin Wound Care and Regeneration

Pharmaceutics ◽  
2020 ◽  
Vol 12 (8) ◽  
pp. 735 ◽  
Author(s):  
Erika Maria Tottoli ◽  
Rossella Dorati ◽  
Ida Genta ◽  
Enrica Chiesa ◽  
Silvia Pisani ◽  
...  
Keyword(s):  
Wound Healing ◽  
Growth Factors ◽  
Wound Repair ◽  
Chronic Wounds ◽  
Healing Process ◽  
Skin Wound ◽  
Skin Regeneration ◽  
Bioactive Molecules ◽  
Wound Healing Process ◽  
Skin Wound Healing

Skin wound healing shows an extraordinary cellular function mechanism, unique in nature and involving the interaction of several cells, growth factors and cytokines. Physiological wound healing restores tissue integrity, but in many cases the process is limited to wound repair. Ongoing studies aim to obtain more effective wound therapies with the intention of reducing inpatient costs, providing long-term relief and effective scar healing. The main goal of this comprehensive review is to focus on the progress in wound medication and how it has evolved over the years. The main complications related to the healing process and the clinical management of chronic wounds are described in the review. Moreover, advanced treatment strategies for skin regeneration and experimental techniques for cellular engineering and skin tissue engineering are addressed. Emerging skin regeneration techniques involving scaffolds activated with growth factors, bioactive molecules and genetically modified cells are exploited to overcome wound healing technology limitations and to implement personalized therapy design.

scholarly journals Using autologous red bone marrow aspirates for acceleration of wound healing

2020 ◽  
pp. 135-140
Author(s):  
S. D. Fedzianin
Keyword(s):  
Bone Marrow ◽  
Wound Healing ◽  
Chronic Wounds ◽  
Healing Process ◽  
Randomized Study ◽  
Main Group ◽  
Control Group ◽  
Wound Healing Process ◽  
Second Phase ◽  
Red Bone Marrow

Objectives: to develop a method for management of chronic wounds based on the use of autologous red bone marrow aspirates.Material and methods. A randomized study of the second phase of the wound healing process was conducted in 72 patients with chronic wounds. The standard methods were used to assess the dynamics of the wound healing process.Results. The rate of the wound healing process in the main group was Me 6.0 (LQ 5.0; UQ 35.0) % per day, and in the control group — 3.0 (LQ 3.0; UQ 28.0) % per day, which was authentically twice as high in the use of autologous red bone marrow aspirates (p = 0.00036). The duration of the phase of granulation tissue formation and maturation in the main group was Me 5.0 (LQ 3.0; UQ 7.0) days, and in the control group — Me 12.0 (LQ 9.0; UQ 15.0) (p < 0.00001).Conclusion. The developed method of wound healing acceleration is characterized by its technical simplicity, convenience and cheapness. Its use makes it possible with high fidelity to reduce the duration of the second phase of the wound healing process by 7 days and leads to a two-fold increase in the healing rate of wound defects.

scholarly journals Antioxidant dressing therapy versus standard wound care in chronic wounds (REOX study): Study protocol for a randomized controlled trial

2020 ◽  
Author(s):  
Inés María Comino-Sanz ◽  
María Dolores López-Franco ◽  
Begoña Castro ◽  
Pedro Luis Pancorbo-Hidalgo
Keyword(s):  
Wound Healing ◽  
Randomized Controlled Trial ◽  
Wound Dressing ◽  
Chronic Wounds ◽  
Chronic Wound ◽  
Controlled Trial ◽  
Healing Process ◽  
Intervention Group ◽  
Control Group ◽  
Randomized Controlled

Abstract Background: A wound that does not heal in the orderly stages of the healing process or does not heal within three months is considered a chronic wound. Wound healing is impaired when the wound remains in the inflammatory stage for too long. A range of factors can delay the healing process: imbalance between proteases and protease inhibitors in the wound bed; bacterial colonization and the presence of biofilm; and oxidative stress.Recently, wound management has improved significantly. A new antioxidant dressing has been developed, which combines an absorbent matrix obtained from Locust Bean Gum (LBG) galactomannan and a hydration solution with curcumin and N-acetylcysteine (NAC). This dressing combines the advantages of moist healing in exudate management and free radical neutralization, achieving wound reactivation.The primary aim of this study is to compare the effect of antioxidant dressing on chronic wound healing with the use of standard wound dressing in patients with hard-to-heal wounds.Methods: We will conduct a multicentre, open, randomized, controlled trial with parallel groups. Participants will be selected from three primary public health-care centres, located in Andalucía (southern Spain). Patients will be randomized into an intervention group (antioxidant dressing) or control group (standard wound dressing). Assessment will be carried out in weeks 2, 4, 6 and 8. The follow-up of patients will be prolonged until week 8 or complete healing.Discussion: The findings from this study should provide scientific evidence on the efficacy of 20 the antioxidant dressing as an alternative for the treatment of chronic wounds. This study fills 21 some of the gaps in the existing knowledge about patients with hard-to-heal wounds.

Natural, Synthetic and their Combinatorial Nanocarriers Based Drug Delivery System in the Treatment Paradigm for Wound Healing Via Dermal Targeting

2020 ◽  
Vol 26 (36) ◽  
pp. 4551-4568
Author(s):  
Mohammad Kashif Iqubal ◽  
Sadaf Saleem ◽  
Ashif Iqubal ◽  
Aiswarya Chaudhuri ◽  
Faheem Hyder Pottoo ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Wound Healing ◽  
Photodynamic Therapy ◽  
Growth Factors ◽  
Combination Therapy ◽  
Healing Process ◽  
Wound Healing Process ◽  
Wound Site ◽  
Synthetic Drugs ◽  
Treatment Paradigm

A wound refers to the epithelial loss, accompanied by loss of muscle fibers collagen, nerves and bone instigated by surgery, trauma, frictions or by heat. Process of wound healing is a compounded activity of recovering the functional integrity of the damaged tissues. This process is mediated by various cytokines and growth factors usually liberated at the wound site. A plethora of herbal and synthetic drugs, as well as photodynamic therapy, is available to facilitate the process of wound healing. Generally, the systems used for the management of wounds tend to act through covering the ruptured site, reduce pain, inflammation, and prevent the invasion and growth of microorganisms. The available systems are, though, enough to meet these requirements, but the involvement of nanotechnology can ameliorate the performance of these protective coverings. In recent years, nano-based formulations have gained immense popularity among researchers for the wound healing process due to the enhanced benefits they offer over the conventional preparations. Hereupon, this review aims to cover the entire roadmap of wound healing, beginning from the molecular factors involved in the process, the various synthetic and herbal agents, and combination therapy available for the treatment and the current nano-based systems available for delivery through the topical route for wound healing.

scholarly journals Effects and Responsiveness of a Multicomponent Intervention on Body Composition, Physical Fitness and Leptin in Overweight/Obese Adolescents

2021 ◽  
Vol 18 (14) ◽  
pp. 7267
Author(s):  
Leticia Borfe ◽  
Caroline Brand ◽  
Letícia Schneiders ◽  
Jorge Mota ◽  
Claudia Cavaglieri ◽  
...  
Keyword(s):  
Body Composition ◽  
Physical Fitness ◽  
Intervention Group ◽  
Interleukin 10 ◽  
Control Group ◽  
Post Intervention ◽  
Necrosis Factor Alpha ◽  
Obese Adolescents ◽  
Quasi Experimental ◽  
Multicomponent Program

Physical exercise reduces the biochemical markers of obesity, but the effects of multicomponent interventions on these markers should be explored. The present study aimed to elucidate how overweight/obese adolescents respond to a multicomponent program approach on body composition, physical fitness, and inflammatory markers, using a quasi-experimental study with 33 overweight/obesity adolescents (control group (CG) = 16; intervention group (IG) = 17). The intervention consisted of 24 weeks with physical exercises and nutritional and psychological guidance. Both groups were evaluated at the pre/post-intervention moments on body mass index (BMI); body fat (%Fat); waist circumference (WC); waist/hip ratio (WHR); waist-to-height ratio (WHtR), cardiorespiratory fitness (CRF); abdominal strength, flexibility; leptin; interleukin 6; interleukin 10; and tumor necrosis factor-alpha. Mixed-analysis of variance and generalized estimation equations were used for statistical analysis. There was an interaction effect between groups and time on %Fat (p = 0.002), WC (p = 0.023), WHR (p < 0.001), WHtR (p = 0.035), CRF (p = 0.050), and leptin (p = 0.026). Adolescents were classified as 82.4% responders for %Fat, 70.6% for WC, 88.2% for WHR, and 70.6% for CRF. Further, there was an association between changes in %Fat (p = 0.033), WC (p = 0.032), and WHR (p = 0.033) between responders and non-responders with CRF in the IG. There was a positive effect on body composition, physical fitness, and leptin. In addition, reductions in body composition parameters were explained by CRF improvements.

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