scholarly journals Diverse Roles of Heparan Sulfate and Heparin in Wound Repair

2015 ◽  
Vol 2015 ◽  
pp. 1-7 ◽  
Author(s):  
Pawel Olczyk ◽  
Łukasz Mencner ◽  
Katarzyna Komosinska-Vassev
Keyword(s):  
Wound Healing ◽  
Heparan Sulfate ◽  
Tissue Regeneration ◽  
Tissue Repair ◽  
Wound Repair ◽  
Healing Process ◽  
Wound Healing Process ◽  
Initial Growth ◽  
The Core ◽  
Core Proteins

Heparan sulfate (HS) and heparin (Hp) are linear polysaccharide chains composed of repeating (1→4) linked pyrosulfuric acid and 2-amino-2-deoxy glucopyranose (glucosamine) residue. Mentioned glycosaminoglycans chains are covalentlyO-linked to serine residues within the core proteins creating heparan sulfate/heparin proteoglycans (HSPG). The latter ones participate in many physiological and pathological phenomena impacting both the plethora of ligands such as cytokines, growth factors, and adhesion molecules and the variety of the ECM constituents. Moreover, HS/Hp determine the effective wound healing process. Initial growth of HS and Hp amount is pivotal during the early phase of tissue repair; however heparan sulfate and heparin also participate in further stages of tissue regeneration.

scholarly journals Topical Saudi Arabia Talh honey (Acacia nilotica) on surgical wound healing activity

2020 ◽  
Author(s):  
Ahmed G. Hegazi ◽  
Faiz M. Al Guthami ◽  
Mohamed H. Basiouny ◽  
Ahmed F.M. Al Gethami
Keyword(s):  
Wound Healing ◽  
Saudi Arabia ◽  
Wound Repair ◽  
Healing Process ◽  
Bacterial Count ◽  
Tissue Growth ◽  
Acacia Nilotica ◽  
Total Bacterial Count ◽  
Wound Healing Process ◽  
Ifn Γ

Honey has been documented as the oldest traditional medicine. It has been effective in suppressing inflammation, wound repair enhancer, and rapid autolytic debridement. The aim of this investigation was to evaluate the role of Saudi Arabia Talh honey (Acacia nilotica) dressing as a good alternative in care of diabetic foot (DFU) healing activity for twenty patients, wound total bacterial count, and serum cytokines levels (IFN-γ, IL-1, and IL-6). The results showed that Talh honey stimulates the wound healing process, broad-spectrum antibacterial activity, and reduction in the proinflammatory cytokines IFN-γ, IL-1, and IL-6 levels. It could be concluded that Talh honey bioactivities enhance wound healing by promoting tissue growth leading to wound repair, antibacterial, and reduction of inflammation.

scholarly journals Systemic and topical administration of spermidine accelerates skin wound healing

2020 ◽  
Author(s):  
Daisuke Ito ◽  
Hiroyasu Ito ◽  
Takayasu Ideta ◽  
Ayumu Kanbe ◽  
Soranobu Ninomiya ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Wound Healing ◽  
Wound Repair ◽  
Healing Process ◽  
Topical Administration ◽  
Skin Wound ◽  
Wound Healing Process ◽  
Skin Wound Healing

Abstract Background The skin wound healing process is regulated by various cytokines, chemokines, and growth factors. Recent reports have demonstrated that spermine/spermidine (SPD) promote wound healing through urokinase-type plasminogen activator (uPA)/uPA receptor (uPAR) signaling in vitro. Here, we investigated whether the systemic and topical administration of SPD would accelerate the skin wound-repair process in vivo.Methods A skin wound repair model was established using C57BL/6 J mice. SPD was mixed with white petrolatum for topical administration. For systemic administration, SPD mixed with drinking water was orally administered. Changes in wound size over time were calculated using digital photography.Results Systemic and topical SPD treatment significantly accelerated skin wound healing. The administration of SPD promoted the uPA/uPAR pathway in wound sites. Moreover, topical treatment with SPD enhanced the expression of IL-6 and TNF-α in wound sites. Scratch and cell proliferation assays revealed that SPD administration accelerated scratch wound closure and cell proliferation in vitro.Conclusion These results indicate that treatment with SPD promotes skin wound healing through activation of the uPA/uPAR pathway and induction of the inflammatory response in wound sites. The administration of SPD might contribute to new effective treatments to accelerate skin wound healing.

Physiology of Wound Healing and Risk Factors that Impede the Healing Process

1990 ◽  
Vol 1 (3) ◽  
pp. 545-552 ◽  
Author(s):  
Susan O’Brien Norris ◽  
Barbara Provo ◽  
Nancy A. Stotts
Keyword(s):  
Diabetes Mellitus ◽  
Wound Healing ◽  
Tissue Repair ◽  
Wound Repair ◽  
Healing Process ◽  
Critically Ill Patient ◽  
Wound Complications ◽  
Care Environment ◽  
Patient Morbidity ◽  
Illness Knowledge

In the critically ill patient, wound repair can be impeded by processes inherent to the illness, its treatment, and the critical care environment. This vulnerability to wound complications increases patient morbidity and mortality as well as length of stay, resource consumption, and hospital cost. The physiology of wound healing and factors that impede wound repair are discussed. Those factors commonly seen in critical illness include advanced age, diabetes mellitus, compromised immunocompetence, inadequate perfusion, and oxygenation, infection, malnutrition, obesity, and preoperative illness. Knowledge of management of the physiologic factors that affect wound healing enables the nurse to maximize tissue repair and prevent wound complications

scholarly journals Bioactive and Bioadhesive Catechol Conjugated Polymers for Tissue Regeneration

Polymers ◽  
2018 ◽  
Vol 10 (7) ◽  
pp. 768 ◽  
Author(s):  
María Puertas-Bartolomé ◽  
Blanca Vázquez-Lasa ◽  
Julio San Román
Keyword(s):  
Wound Healing ◽  
Free Radicals ◽  
Tissue Regeneration ◽  
Chronic Wounds ◽  
Healing Process ◽  
Antioxidant Response ◽  
Wound Healing Process ◽  
Natural Polyphenol ◽  
Moist Environment ◽  
High Yields

The effective treatment of chronic wounds constitutes one of the most common worldwide healthcare problem due to the presence of high levels of proteases, free radicals and exudates in the wound, which constantly activate the inflammatory system, avoiding tissue regeneration. In this study, we describe a multifunctional bioactive and resorbable membrane with in-built antioxidant agent catechol for the continuous quenching of free radicals as well as to control inflammatory response, helping to promote the wound-healing process. This natural polyphenol (catechol) is the key molecule responsible for the mechanism of adhesion of mussels providing also the functionalized polymer with bioadhesion in the moist environment of the human body. To reach that goal, synthesized statistical copolymers of N-vinylcaprolactam (V) and 2-hydroxyethyl methacrylate (H) have been conjugated with catechol bearing hydrocaffeic acid (HCA) molecules with high yields. The system has demonstrated good biocompatibility, a sustained antioxidant response, an anti-inflammatory effect, an ultraviolet (UV) screen, and bioadhesion to porcine skin, all of these been key features in the wound-healing process. Therefore, these novel mussel-inspired materials have an enormous potential for application and can act very positively, favoring and promoting the healing effect in chronic wounds.

scholarly journals Platelet-Rich Plasma-Derived Exosomal USP15 Promotes Cutaneous Wound Healing via Deubiquitinating EIF4A1

2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Yan Xu ◽  
Ze Lin ◽  
Lei He ◽  
Yanzhen Qu ◽  
Liu Ouyang ◽  
...  
Keyword(s):  
Wound Healing ◽  
Wound Repair ◽  
Platelet Rich Plasma ◽  
Healing Process ◽  
Cell Counting ◽  
Wound Healing Process ◽  
Hacat Cells ◽  
Epithelial Regeneration

Epithelial regeneration is an essential wound healing process, and recent work suggests that different types of exosomes (Exos) can improve wound repair outcomes by promoting such epithelial regeneration. Platelet-rich plasma (PRP) is known to facilitate enhanced wound healing, yet the mechanisms underlying its activity are poorly understood. To explore these mechanisms, we first isolated PRP-derived Exos (PRP-Exos). Using immortalized keratinocytes (HaCaT cells) treated with PBS, PRP, or PRP-Exos, we conducted a series of in vitro Cell Counting Kit-8 (CCK-8), EdU, scratch wound, and transwell assays. We then established a wound defect model in vivo in mice and assessed differences in the mRNA expression within these wounds to better understand the basis for PRP-mediated wound healing. The functions of PRP-Exos and USP15 in the context of wound healing were then confirmed through additional in vitro and in vivo experiments. We found that PRP-Exos effectively promoted the in vitro proliferation, migration, and wound healing activity of HaCaT cells. USP15 was further identified as a key mediator through which these PRP-Exos were able to promote tissue repair both in vitro and in vivo. At a mechanistic level, USP15 enhanced the functional properties of HaCaT cells by promoting EIF4A1 deubiquitination. Thus, PRP-Exos and USP15 represent promising tools that can promote wound healing via enhancing epithelial regeneration.

scholarly journals Perineal Wound Identification With Maternity Cool Gel Pad (MCGP) Care Interventions

2021 ◽  
Vol 8 (4) ◽  
pp. 279
Author(s):  
Bina Melvia Girsang ◽  
Eqlima Elfira ◽  
Farida Linda Sari Siregar
Keyword(s):  
Wound Healing ◽  
Wound Repair ◽  
Healing Process ◽  
Perineal Wound ◽  
Wound Healing Process ◽  
Post Intervention ◽  
Short Period ◽  
Perineal Wounds ◽  
Postpartum Mothers ◽  
The Impact

<em>Postpartum mothers with an indication of episiotomy will experience a higher level of pain. This birth canal trauma is acute and is expected to recover in a short period of time, can be measured, and without serious complications. The aim of this study was to identify the healing process of postpartum maternal perineal wounds. The intervention was carried out on 31 postpartum mothers with the selection using purposive sampling technique. Maternity cool gel pad (MCGP) which was applied to the perineal wound care intervention on the 2nd and 3rd day after delivery showed the wound healing process was observed using the REEDA measuring instrument and analyzed using the T one sample test. The repair of the wound repair scale from the mean REEDA score (10.81 ± 2.98) occurred in all wounds of the study respondents at post intervention (5.32 ± 1.73). Maternity cool gel pad intervention assisted the wound healing process in post intervention data (P &lt;0.005). The results of this study can be indicative of an inflammatory response locally in perineal wounds, but further research is needed to observe the impact of perineal wound healing with a combination of methods that can help evaluate the perineal wound repair process that can be done by mothers independently at home.</em>

scholarly journals HvRNASET2 Regulate Connective Tissue and Collagen I Remodeling During Wound Healing Process

2021 ◽  
Vol 12 ◽  
Author(s):  
Nicolò Baranzini ◽  
Laura Pulze ◽  
Gianluca Tettamanti ◽  
Francesco Acquati ◽  
Annalisa Grimaldi
Keyword(s):  
Immune Response ◽  
Wound Healing ◽  
Muscle Tissue ◽  
Tissue Regeneration ◽  
Immune Modulation ◽  
Healing Process ◽  
Wound Healing Process ◽  
Collagen Production

Several studies have recently demonstrated that the correct regeneration of damaged tissues and the maintaining of homeostasis after wounds or injuries are tightly connected to different biological events, involving immune response, fibroplasia, and angiogenetic processes, in both vertebrates and invertebrates. In this context, our previous data demonstrated that the Hirudo verbana recombinant protein rHvRNASET2 not only plays a pivotal role in innate immune modulation, but is also able to activate resident fibroblasts leading to new collagen production, both in vivo and in vitro. Indeed, when injected in the leech body wall, which represents a consolidated invertebrate model for studying both immune response and tissue regeneration, HvRNASET2 induces macrophages recruitment, fibroplasia, and synthesis of new collagen. Based on this evidence, we evaluate the role of HvRNASET2 on muscle tissue regeneration and extracellular matrix (ECM) remodeling in rHvRNASET2-injected wounded leeches, compared to PBS-injected wounded leeches used as control. The results presented here not only confirms our previous evidence, reporting that HvRNASET2 leads to an increased collagen production, but also shows that an overexpression of this protein might influence the correct progress of muscle tissue regeneration. Moreover, due to its inhibitory effect on vasculogenesis and angiogenesis, HvRNASET2 apparently interfere with the recruitment of the myoendothelial vessel-associated precursor cells that in turn are responsible for muscle regeneration during wound healing repair.

Icariin-Loaded Polyvinyl Alcohol/Agar Hydrogel: Development, Characterization, and In Vivo Evaluation in a Full-Thickness Burn Model

2019 ◽  
Vol 18 (3) ◽  
pp. 323-335 ◽  
Author(s):  
Varuna Naga Venkata Arjun Uppuluri ◽  
T. S. Shanmugarajan
Keyword(s):  
Extracellular Matrix ◽  
Wound Healing ◽  
Polyvinyl Alcohol ◽  
Tissue Regeneration ◽  
Healing Process ◽  
Wound Healing Process ◽  
Full Thickness ◽  
Burn Wound ◽  
In Vivo Evaluation ◽  
Hydrogel Scaffolds

Tissue regeneration has become a promising strategy for repairing damaged skin tissues. Among the hydrogels for tissue regeneration applications, topical hydrogels have demonstrated great potential for use as 3D-scaffolds in the burn wound healing process. Currently, no report has been published specifically on icariin-loaded polyvinyl alcohol (PVA)/agar hydrogel on full-thickness burn wounds. In the present study, burn tissue regeneration based on biomimetic hydrogel scaffolds was used for repairing damaged extracellular matrix. Furthermore, a skin burn model was developed in rats, and the icariin-loaded PVA/agar hydrogels were implanted into the damaged portions. The regeneration of the damaged tissues with the help of the icariin-loaded hydrogel group exhibited new translucent skin tissues and repaired extracellular matrix, indicating that the hydrogel can enhance the wound healing process. Moreover, characterization studies such as X-ray diffraction, Fourier-transformed infrared spectroscopy, and differential scanning calorimetry reported the extent of compatibility between icariin and its polymers. Results of the field emission scanning electron microscopy images revealed the extent of the spread of icariin within the polymer-based hydrogel. Furthermore, the wound healing potential, confirmed by histopathological and histochemical findings at the end of 21 days, revealed the visual evidence for the biomimetic property of icariin-loaded PVA/agar hydrogel scaffolds with the extracellular matrix for tissue regeneration.

Supplementation of egg white peptides on attenuating skin mechanical damage symptoms: A promising way to accelerate wound healing process

2021 ◽  
Author(s):  
Huifang Ge ◽  
Yiqun Jiang ◽  
Zhenzhen Ning ◽  
Zhiqing Hu ◽  
Sitong Ma ◽  
...  
Keyword(s):  
Wound Healing ◽  
Wound Repair ◽  
Healing Process ◽  
Mechanical Damage ◽  
Egg White ◽  
Wound Healing Process ◽  
Accelerate Wound Healing ◽  
Nutrition Supplement ◽  
Damage Symptoms

Recent studies have indicated that activity peptides can induce an improvement in wound repair. Herein, we evaluated egg white peptides (EWPs) as a nutrition supplement to improve skin mechanical damage...

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