Significant Wound Healing Activity Research Articles

Assessment of anti bacterial, anti inflammation and wound healing activity in Wistar albino rats using green silver nanoparticles synthesized from Tagetes erecta leaves

Silver nanoparticles synthesized from plant material have superior bioactivities. The purpose of this current study was to synthesis, characterize and to explore the bioactive efficacy of silver nanoparticles (Ag-NPs) using aqueous leaf extract of Tageteserecta. The biosynthesized Ag-NPs were characterized using ultraviolet-visible spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction and Scanning electron microscopy. Ag-NPs were studied for in-vivo anti-inflammatory and wound healing activities performed in female Wistar albino rats. UV –Vis absorption spectrum of the T.erecta leaves extract was obtained at 428nm due to excitation of surface plasmon vibration in nanoparticles and confirms the synthesis of silver nanoparticles. The FTIR analysis showed the presence of sulfate, alkene and alcohol in the AgNP of T.erectaleaves. The average crystallite size of AgNP synthesized was found to be 27.2 nm. The spherical silver grain of 15.5 nm average size has been depicted with high-resolution scanning electron microscopy. Maximum activity (15mm) of T.erecta leaves silver nanoparticles was observed against Salmonella typhi (15mm) followed by Escherichia coli (12mm). Ag-NPs exhibited significant wound healing activity and anti-inflammatory activity in carrageenan-induced paw volume tests performed in female Wistar albino rats. Colloidal Ag-NPs can be synthesized by simple, nonhazardous methods, and biosynthesized Ag-NPs using T.erectaleaves extract have significant therapeutic properties.This work evidently confirmed that silver nanoparticles mediated T.erecta could be considered as a potential source for anti-inflammatory and wound healing drug.

Wound Healing Activity of Herbal Ointment Containing the Extracts of Hibiscus rosa-sinensis Flowers and Curcuma longa Rhizomes

Objectives: To evaluate wound healing activity of herbal ointment containing the extracts of Hibiscus rosa-sinensis flowers and Curcuma longa rhizomes. Methodology: H. rosa-sinensis flowers and C. longa rhizomes were extracted using 95% ethanol. H. rosa-sinensis and Hibiscus rosa-sinensis ointment were prepared using paraffin wax, lanolin and petroleum jelly. Ointment formulation was applied once daily on the excision wound made on Sprague Dawley rats for 20 days. Results: On day 20, the treatment group showed a significant increase in wound contraction which was 93.52 ± 1.38% when compared to control (87.62 ± 1.48%). Conclusion: Herbal ointment exhibited significant wound healing activity in rat excision wound model.

Can Carpobrotus edulis, heal incisional and excisional wounds on the skin?

This study aimed to investigate the wound healing activity of liposomal Carpobrotus edulis powder extract (CEPE) formulation on incisional and excisional wounds in rat. In the event of any damage, the damaged tissue undergoes a process of regenerating itself, which is called wound healing. Centella asiatica extract (CAE) was used as the reference molecule in the study. The wound healing process was tested by using the excisional and incisional wound model. On the 12th day of the study, maximum stress, stress, % of elongation values were evaluated in the incisional wound. Also; histological parameters and macroscopic photographic analyses were evaluated in the excisional wound. In the photo evaluations, the improvement was more prominent in both CAE and CEPE groups than in the control group. Histological evaluation showed that CEPE group had significant wound healing activity compared to the control and CAE groups. Axial tensile-elongation experiments in incisional wound tissue show that there was no significant difference between CAE and CEPE groups. Liposomal formulations of C.edulis extract were found to have positive effects on the healing process, both on excisional and incisional wound tissues (Tab. 2, Fig. 3, Ref. 30).

Evaluation of the wound healing activity of the crude extract of root bark of Brucea antidysentrica, the leaves of Dodonaea angustifolia and Rhamnus prinoides in mice

BackgroundWounds are major problems of developing countries that can be managed alternatively using traditional medicinal plants. Since majority of currently available drugs for wound management are expensive and pose problems such as allergy and drug resistance, it is pivotal for the world to have intensified inquiries on the claimed medicinal plants to come up with wound healing chemicals being affordable, effective and safe. Ethiopian traditional healers recruit a wide range of medicinal plants with wound healing activities. Root bark juice of Brucea antidysentrica, the leaves of Rhamnus prinoides and Dodonaea angustifolia are claimed among others in the folklore medicine. Therefore, the aim of this study was to evaluate the in vivo wound healing activities of the root bark juice of Brucea antidysentrica, the leaves of Rhamnus prinoides and Dodonaea angustifolia in mice. MethodThe root bark juice of Brucea antidysentrica, the leaves of Rhamnus prinoides and Dodonaea angustifolia were collected, dried, ground to coarse powders. Then the crude extract was obtained by macerating with 80% methanol. The filtrate was dried, reconstituted in appropriate solvent and the wound healing activity was evaluated using excision and incision wound models. ResultsOn the last day of treatment, 80% methanol extracts from the selected medicinal plants showed a significant wound healing activity against control as supported by an increase in % wound contraction and a decrease in Epithelialization period. Ten percent of Rhamnus prinoides showed significant wound contraction against the control (P < 0.05) on days 2 and 4. But on day 6; except 5% extracts of Brucea antidysentrica and Rhamnus prinoides; all doses of extracts contracted the wound significantly (P < 0.05). Extracts of Dodonea angustifolia (5% & 10%) and 10% of Rhamnus prinoides and Bruceaantidysentrica increases wound contraction rate with increasing significant level on days 8 & 10 (P < 0.01) and 12 &14 (P < 0.001). Among the extracts, 10% of Dodonea angustifolia showed maximum percent (99.9%; P < 0.001) of wound contraction followed by 5% Dodonea angustifolia (99.15%; P < 0.001) and 10% Rhamnus prinoides (99.00%; P < 0.001) on the last day of treatment. In addition; significantly shorter healing time was attained by 5% &10% leaves of Dodonea angustifolia (P < 0.01), 10% leaves Rhamnus prinoides & root barks Brucea antidysentrica (P < 0.05). Ten percent of Rhamnus prinoides &Brucea antidysentrica (P < 0.05) and both doses (5% & 10%) of Dodonea angustifolia (P < 0.01) significantly increased the tensile strength by 54.10%, 56.58%, 63.04%, and 79.19%, respectively against the control. ConclusionThe 80% methanol crude extracts of the study plants support the traditional claims for healing of wounds as evidenced by an increase in wound contraction rate and tensile strength, decrease in Epithelialization period.

Standardization and Wound-Healing Activity of Petroleum, Ethanolic and Aqueous Extracts of Ficus Benghalensis Leaves

Wound healing is the repair process of injury on the skin and other soft tissues. After injury, an inflammatory response occurs and tissue cells below the dermis begin to increase collagen formation. Later, the epithelial tissue is regenerated. There are three stages of wound healing process: inflammation, proliferation and remodeling. Traditionally, Ficus benghalensis plant has been used for wound healing but no clear scientific data are available related to this activity. The present work was designed to explore the wound-healing efficacy of petroleum, ethanolic and aqueous extracts of F. benghalensis leaves as evaluated on excision wound models. These leaves extracts were studied for their phytochemicals by means of different chemical tests. Parameters studied include the rate of wound contraction and period of complete epithelialization of incision wound. Student’s t-test was used to analyze the results obtained from this study and confidence level P < 0.05 was considered significant. All the petroleum, ethanolic and aqueous extracts of F. benghalensis leaves were found to possess significant wound-healing activity, which was evidenced by decrease in the period of epithelialization and increase in the rate of wound contraction. The obtained results showed that all extracts of F. benghalensis leaves were capable of accelerated wound-healing activity comparable with a control drug.

A Novel Herbal Hydrogel Formulation of Moringa oleifera for Wound Healing.

Treatment of wounds is essential as the wound can also be lethal at some point in time if not healed properly. Ethnomedicinal plants can treat wounds as they have no side effects, whereas, in the case of chemical drugs, the side effects are on the rise. In this study, seeds of Moringa oleifera which is the essential ethnomedicinal plant, were studied for wound healing efficacy. The study was planned for the assessment of in vitro (antioxidant and antimicrobial activities) and in vivo (excision and incision wound healing models) wound healing efficacy of n-hexane extract and hydrogels of Moringa oleifera seeds. The antioxidant and antimicrobial activities were assessed by DPPH free radical scavenging assay and Agar well diffusion method, respectively. In excision and incision wound models, Swiss albino mice were used for wound healing efficacy of hydrogels, i.e., 5% and 10% hexane extracts of Moringa oleifera seeds. The n-hexane extract showed antioxidant as well as antibacterial activities. Moreover, the hydrogels formulated using n-hexane extract of Moringa oleifera seeds showed significant wound healing activity compared to both control and standard until the end of the protocol in both the models. Furthermore, the histopathological investigation confirmed the findings of accelerated regeneration of tissue accompanied by a decrease in inflammatory cells and increased vascularity of the immediate skin. The results (both in vitro and in vivo) claimed conclusively that our n-hexane hydrogel formulation of Moringa oleifera seeds might serve as an alternative therapy in skin restoration during wound healing.

SCOPING REVIEW: POTENTIAL WOUND HEALING EFFECT OF EUPHORBIA HIRTA (ARA TANAH) BASED ON IN VIVO MODELS

Wound management is important as it helps to promote healing without microbial infection. Euphorbia hirta, a species of Euphorbiaceae family, also known as Ara tanah among Malaysians, is traditionally used to promote wound healing where its poultice is applied to the sores on the legs, bruises and wounds. Several reported pharmacological properties including antioxidant, antimicrobial, antidiabetic, anti-anaphylactic activities have been reported on this plant. The aim of this review was to evaluate the wound healing effects of E. hirta. Information involving only in vivo studies on wound healing effect of E. hirta was searched using electronic databases. The electronic databases include PubMed, Google Scholar, Ovid, CENTRAL, LILACS, and ClinicalTrials.gov from year 1962 to 2020. A total of five out of 70 studies were included and assessment was made. All included articles studied different wound models in rats. All showed significant wound healing activity with different mechanism of action for incision, excision and dead space wound. Quality assessment of the included studies suggested that experimental animal study design can be improved. It can be concluded that E. hirta displayed potential as a wound healing agent in vivo studies although further research on structureactivity relationship of compounds responsible for the wound healing effect and toxicological studies before it can proceed to clinical studies.

EVALUATION OF EXCISIONAL AND INCISIONAL WOUND HEALING ACTIVITY OF ELECTROHOMEOPATHIC DRUG (SPAGYRIC ESSENCE) GREEN ELECTRICITY IN RATS

Objective: The current research is an attempt to evaluate the wound healing activity of Electrohomeopathic drug Green electricity (GE) in Wistar rats. No data have been reported till date on the wound healing effect of GE. Hence the present research focuses on the scientific investigation of the wound healing activity of GE in rats.&#x0D; Methods: Excision and incision wounds were inflicted upon albino rats. In the excision wound model, the wound contraction, Scar residue, area and time of complete epithelization were measured subsequently on day 0, 3,6,9,12,15, 18 and 21 after inflicting the wound. Wound contraction was calculated as a percentage change in the initial wound size. In the incision wound model, the tensile strength was measured on the 10th post wounding day.&#x0D; Results: It was noted that the effect produced by the GE Showed significant wound healing (p&lt;0.01) in all wound models when compared to the control group. In the case of the excision model, GE statistically increases the wound contraction rate and in the case of the incision model GE showed high tensile strength as compared to the control group. In both cases the epithelization period was significantly decreased as compared to control. Almost 100% wound protection was achieved by GE in 21 d as compared to control.&#x0D; Conclusion: GE (ointment) showed significant wound healing activity (p&lt;0.01) in both the excised wound model and incision wound model in rats.

Antioxidant, Antimicrobial and Wound Healing Potential of Helicteres isora Linn. Leaf Extracts

ObjectiveTo investigate the antioxidant, antimicrobial and wound healing potential of Helicteres isora Linn. leaf extracts. MethodsThe petroleum ether, chloroform, acetone, ethanol and hydroalcoholic extracts of leaves were screened for phytochemicals. The 1,1-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide (NO) radical scavenging tests and reducing power assays were performed to measure antioxidant activity; disc diffusion methods were used to evaluate antimicrobial potential. Wound healing activity was evaluated by incision and excision wound rat models. ResultsThe extracts contained mainly sterols and flavonoids. The hydroalcoholic extract showed remarkable antioxidant and antimicrobial potential and significant (P < 0.05) wound healing activity. ConclusionsThe identified activities of the hydroalcoholic extract may be attributable to its constituent phytochemicals.

Evaluation of Beneficial Influence of Local Application of Crocus Pallasii Subsp. Haussknechtii Boiss. Extract on Healing of Full Thickness Excisional Infected Wounds in Diabetic Rats.

Objective:To evaluate the wound healing activity of Crocus pallasii subsp. haussknechtii boiss leaves extract on infected wounds in diabetic rats.Methods:Fifty male diabetic rats were randomized into two sets of 25 animals each. Each group was sub divided into five groups of five animals, each for excisional and incisional wound models, respectively. Induction of diabetes was achieved using 60 mg/kg streptozotocin. In group I, 0.1 mL sterile saline 0.9% solution was added to the wounds with no infection. In group II, the wounds were infected with Methicillin-resistant staphylococcus aureus (MRSA) and only treated with 0.1 mL the sterile saline 0.9% solution. In group III, infected wounds were treated with application of base formulation ointment. In group IV, animals with infected wounds were treated with 0.1 mL topical application of 1 mg/mL methicillin and base formulation ointment. In group V, animals with infected wounds were treated with topical application of 0.1 mL solution of methicillin (1 mg/mL) and with 1g of powder extract of the plant material in ointment. The healing of the wound was assessed based on planimetry, hydroxyproline estimation, microbiological, biomechanical and biochemical studiesResults:Microbiological examination, planimetric, histological and quantitative morphometric studies and determination of hydroxyproline levels showed that there was significant difference between animals in group V compared to other groups (p=0.001). Biomechanical indices in incisional groups showed there was significant difference between animals in group V compared to other groups (p=0.001).Conclusion:It was possible to conclude that the ointment of the extract of Crocus pallasii subsp. haussknechtii boiss. leaves have significant wound-healing activity in diabetes.

Teicoplanin-loaded chitosan-PEO nanofibers for local antibiotic delivery and wound healing

Antibiotic-loaded nano-delivery systems offer an advanced approach to overcome several limitations associated with antibiotic therapy. Antibiotic-loaded nanofibers can be applied topically for skin and wound healing, post operation implants for the prevention of abdominal adhesion, and prophylaxis and treatment of infections in orthopedic surgery. Here, the authors report the development of local antibiotic delivery system using chitosan- polyethylene oxide (PEO) nanofibers for delivery of teicoplanin. Successful electrospinning of chitosan-PEO solution containing 2 and 4 w/v% teicoplanin resulted in uniform and bead-less nanofibers. Nanofibers were able to release teicoplanin up to 12 days. Antibacterial test in agar diffusion and time-kill study on Staphylococcus aureus also demonstrate that loading teicoplanin in chitosan-PEO nanofibers not only kept the antibacterial activity of antibiotic but also, enhanced it up to 1.5 to 2 fold. Teicoplanin loaded nanofibers did not show any cytotoxicity to human fibroblast. Moreover, in vivo study on rat full thickness wound model confirmed safety and efficacy of applying teicoplanin loaded nanofibers and significant improve in wound closure was observed especially with nanofibers containing 4% teicoplanin. The sustained release profile, enhanced drug activity, cytocompatibility, and significant wound healing activity affirm the potential applications of teicoplanin-loaded nanofibers in wound healing and local antibiotic delivery.

Efecto curativo de heridas del aceite de semilla de Pistacia lentiscus L.: confirmación de sus usos en medicina tradicional mediterránea

In order to evaluate the potential of this formulation (P. lentiscus L. oil-based ointment) to heal wounds, experimental wounds were done on guinea pigs and efficiency was comparatively assessed against a reference ointment, Cicaderma®. Wound contraction was performed on days 5, 10 and 15. Tissue sections were also evaluated histopathological on days 7, 14 and 21. Results showed that for all days (5, 10 and 15), the highest wound contraction values were attained for the P. lentiscus oil-based ointment treated group with wound contraction values of 19.38, 55.8 and 77.11%, respectively, as compared to the reference drug Cicaderma® where contractions were 7.97%, 49.53% and 71.44%, respectively. Vehicle and negative control groups however showed no statistically significant wound healing activity on the excision wound model. These experimental studies revealed that the P. lentiscus oil-based ointment displays remarkable wound healing activity, in accordance with its use in traditional medicine.

Assessment of Wound Healing Activity of Green Synthesized Titanium Oxide Nanoparticles using &lt;i&gt;Strychnos spinosa &lt;/i&gt;and &lt;i&gt;Blighia sapida&lt;/i&gt;

The biosynthesis of nanoparticles has been proposed as a cost effective and environmentally friendly alternative to chemical and physical methods. The present work investigates the synthesis of titanium oxide nanoparticles (TiO2 NPs) by green approach using Strychnos spinosa and Blighia sapida leave extracts. The detailed characterization of the TiO2 NPs was carried out using UV-Visible Spectroscopy, Scanning Electron Microscopy (SEM), X- ray Diffraction (XRD), and Fourier-Transform Infrared (FTIR) Spectroscopy. The green synthesized TiO2 NPs excitation was confirmed using UV–Vis spectrophotometer at 270 and 290 nm for Strychnos spinosa and Blighia sapida respectively. SEM revealed that the synthesized TiO2 NPs were spherical and crystalline in nature. The overall sizes are 40 and 50 nm for Strychnos spinosa and Blighia sapida respectively. FTIR spectroscopic analysisshowed the presence of flavonoids, polyphenols and amide groups likely to be responsible for the green synthesis of titanium oxide nanoparticles using S. Spinosa and B .sapida aqueous leaf extracts. The XRD pattern showed the characteristic Bragg peaks of (111), (200), (220) and (311) facets of the anatase titanium oxide nanoparticles and confirmed that these nanoparticles were crystalline and spherical in nature. Furthermore, the green synthesized TiO2 NPs wound healing activity was examined in the excision wound model by measuring wound closure, histopathology and protein profiling. This revealed significant wound healing activity in Albino rats. In the present study, topical application ofnanoformulated extracts of B. sapidaa nd S. spinosa significantly accelerated wound healing with 20% nanoformulated ointment having the highest percentage wound contraction ability comparable with gentamicin (a commercially sold antimicrobial agent used in dressing wounds). In conclusion, this work proved the capability of using TiO2 NPs to deliver a novel therapeutic route for wound treatment in clinical practice.&#x0D; Keywords: Wound healing activity; SEM; TiO2; XRD; FTIR; UV–Vis spectroscopy.

Wound Healing Activity of Ethanolic Extract of Selaginella Bryopteris on Rats

The objective of the present study was to determine wound healing activity of ethanolic extract of Selaginella bryopteris on rats. The whole plant of S. bryopteris Linn. was collected from Andhra Pradesh, India and extraction was done using ethanol. GC-MS analysis was performed to determine active metabolites present in the extract followed by determination of total phenolic and flavonoid contents. In vivo wound healing activity of ethanolic extract was evaluated using excision wound model. The extract was applied topically on animals by preparing ointment in two concentrations (5% and 10%) where soframycin (10%) was taken as positive control. Antioxidant activity of S. bryopteris extract was observed by measuring oxidative enzymatic levels i.e. Superoxide dismutase (SOD), Catalase (CAT), reduced Glutathione (GSH) and lipid peroxidation (LPO) in animal tissues. Histopathological studies of excised skin were carried out after the experimental period. The contraction rate of the wound was higher and dose-dependent in rats treated with 5% and 10 % ointment of extract in comparison to untreated control group. The drug treated groups showed recovery phase and the percentage of healing was more in 10% at the end of experimental period. Results exhibited sufficient insights on the healing process with normal recovery stages and restored oxidative enzymatic levels. Histopathological findings provided additional positive results; the dermis with proliferating capillaries and skeletal muscle were replaced by cellular fibrous tissue and collagen fibers. Overall, the results showed that ethanolic extract of S.bryopteris was an interesting traditional agent that possess significant wound healing activity.

Efficacy of Ashwagandha [Withania somnifera (Linn.) dunal] leaf paste in the management of chronic non-healing wound: A case report

Since time immemorial, healing of wounds has been the central problem of surgical practices. If any wound does not heal in six weeks, it is considered chronic wound (~Dushta vrana) which presents with discharge, slough, pain, etc. Kalka (~paste) has been reported to be an effective form in the management of such Dushta vrana. It is used for Shodhana (~cleansing) as well as Ropana (~healing). A huge number of herbal interventions have been emphasized in classical literature for the management of chronic wound. In this case study, Panchavalkala kwatha and Ashwagandha patra kalka [~leaf paste of Withania somnifera (Linn.) Dunal] were used for the management of Dushta vrana. A 60-year-old male patient, having Vatapitta prakriti, presented with the complaints of a non-healing ulcer with severe pain at the right big toe associated with purulent discharge since about 45 days. On local examination, an ulcer was seen over the dorsum of the right big toe measuring about 2.5 cm × 2.0 cm × 1.0 cm in dimension with irregular margins. The floor was covered with slough and the edges were inflamed with surrounding indurations and raised local temperature. Tenderness was present. The surgeons advised for amputation, but the patient visited Shalya tantra outpatient department for possibility of management. The wound was managed with Ashwagandha patra kalka, where significant wound-healing activity was found.

Titanium dioxide nanotubes incorporated gellan gum bio-nanocomposite film for wound healing: Effect of TiO2 nanotubes concentration

The synthesized titanium dioxide nanotubes (TiO2-NTs) were emerged as wound healing enhancer as well as exhibited significant wound healing activity on Sprague Dawley rats. In our present study, the blends of GG and TiO2-NTs bio-nanocomposite film was characterised by fourier transform infrared (FTIR), x-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis, atomic force microscopy (AFM). The morphology of TiO2-NTs was investigated using transmission electron microscopy (TEM). The mechanical properties study shows that the GG + TiO2-NTs (20 w/w %) bio-nanocomposite film possessed the highest tensile strength and young modulus which are (4.56 ± 0.15) MPa and (68 ± 1.63) MPa, respectively. GG + TiO2-NTs (20 w/w %) also displays the highest antibacterial activity with (16 ± 0.06) mm, (16 ± 0.06) mm, (14 ± 0.06) mm, and (12 ± 0.25) mm inhibition zone were recorded against Staphylococcus aureus, Streptococcus, Escherichia coli, and Pseudomonas aeruginosa. The prepared bio-nanocomposite films have good biocompatibility against 3T3 mouse fibroblast cells and caused accelerated healing of open excision type wounds on Sprague Dawley rat model. The synergistic effects of bio-nanocomposite film like good swelling and WVTR properties, excellent hydrophilic nature, biocompatibility, wound appearance and wound closure rate through in vivo test makes it a suitable candidate for wound healing applications.

A novel self-nanoemulsifying drug delivery system for curcumin used in the treatment of wound healing and inflammation.

The main objective of this study was to develop and evaluate self-nanoemulsifying drug delivery system (SNEDDS) of curcumin (Cur) to enhance their solubility as well as improve skin permeation; and evaluate wound healing potential of Cur via SNEDDS in comparison with standards pure eucalyptus oil-SNEDDS (Euc-SNEDDS), pure curcumin suspension (Cur-S), and standard fusidic acid followed by their anti-inflammatory action. Curcumin-loaded different SNEDDS formulations were formulated through aqueous phase titration method and the zones of SNEDDS were recognized by the construction of phase diagrams. Eucalyptus oil, Tween 80 (surfactant), and Transcutol HP (co-surfactant) were selected on the basis of their solubility and highest nanoemulsion region. Characterization of thermodynamic stability for Cur-loaded SNEDDS was evaluated by its globule size, zeta potential, polydispersity index, viscosity, % transmittance, refractive index, and surface morphology. Cur-SNEDDS (Cur-SN4) was optimized and selected on the basis of their excellent physicochemical parameters for in vivo activity. The particle size (59.56 ± 0.94nm), % transmittance (99.08 ± 0.07%), and PDI (0.207 ± 0.011 were observed for optimized Cur-SNEDDS. TEM and SEM showed their smooth and spherical shape of the morphological characterization with zeta potential (- 21.41 ± 0.89), refractive index (1.341 ± 0.06), and viscosity (11.64 ± 1.26 cp) for optimized Cur-SNEDDS. Finally, optimized Cur-SNEDDS was used to enhance skin permeation with improvement in the solubility of Cur. However, optimized Cur-SNEDDS showed significant wound healing activity as compared with pure eucalyptus oil and Cur-S on topical application. Optimized Cur-SNEDDS showed healing of wound as compared to standard fusidic acid. Optimized Cur-SNEDDS exhibited no signs of inflammatory cells on the histopathological studies of treated rats which were recommended the safety and non-toxicity of Cur-SNEDDS. Newly developed Cur-SNEDDS could be successfully used to enhance Cur-solubility and skin permeation, as well as suggested a potential role of Cur-SNEDDS for better improvement of wound healing activity followed by anti-inflammatory action of Cur via topical application.

AiP1, a protein from the coelomic fluid of sea star Astropecten indicus promotes wound healing and fibrinogenolysis in vitro

BackgroundMarine animals are suspected to hold keys to counter several life-threatening diseases. Despite its vast biodiversity, the marine ecosystem is relatively unexplored for its therapeutic potential. This study was particularly aimed at finding a potent molecule against thrombosis from the coelomic fluid of a sea star (SCF). SCF is a reservoir of immunocytes, coelomocytes, cytokines, and other substances responsible for the exceptional regenerative potential and other bioactivities. Death due to thrombosis has increased significantly in the recent years. Healing of wounds caused due to accidents or surgical procedures is also of great significance, particularly for diabetic patients. Therefore, search for good thrombolytic and wound healing agents is being pursued by many research groups globally.MethodsSCF was fractionated using ion-exchange chromatography and size exclusion HPLC to yield a potent protein, AiP1. Proteolytic assays were performed using SDS-PAGE and zymography. Cell culture studies were performed as per standard protocols.ResultsPurified protein, AiP1, showed fibrinogenolytic, fibrinolytic, and anti-platelet activities in a dose-dependent manner. Proteolytic activities of AiP1 were inhibited post treatment with EDTA, indicating its metalloproteinase nature. It was also devoid of cytotoxic, hemolytic, and phospholipase activities. Scratch wounds created on surface of HEK293 and HaCaT cells showed faster wound closure rates post treatment with AiP1 compared to untreated cells. Peptide mass fingerprinting showed the presence of vWFA-like domain in the central β sheet which may be responsible for its bioactivities. AiP1 was thus isolated and characterized for its thrombolytic and wound healing potential.ConclusionCoelomic fluid of sea stars contains many bioactive compounds. One such compound is the protein AiP1 containing a vWFA-like domain. This protein showed significant wound healing and thrombolytic activities in vitro.Graphical abstract

Multiple activities contribute to the wound healing effect of 80% methanol leaf extract of &lt;i&gt;Discopodium penninervum&lt;/i&gt; Hochst (Solanaceae) in mice

Discopodium Penninervum Hochst is among the Ethiopian medicinal plants traditionally used for wound healing activity. However, to date, there is no scientific report on its wound healing activity. Thus, the main aim of this study was to investigate the wound healing activity of 80% methanol leaf extract of D. penninervum in mice. Wound healing activity was investigated using excision and incision wound models. Mice were randomly assigned and treated with simple ointment (negative control), nitrofurazone (positive control), 5%, and 10% of D. Penninervum extract. Parameters such as wound contraction, period of epithelialization and tensile strength were evaluated. In addition, anti-inflammatory test using carrageenan-induced hind paw oedema model, in vitro antibacterial activity using agar well diffusion technique against several common bacterial strains that cause wound infection and antioxidant activity studies were performed at different doses of the extract. Both 5% and 10% (w/w) ointments exhibited significant (p &lt; 0.001) increase in wound contraction and shorter epithelization period in excision wound model. Animals treated with 5% and 10% (w/w) ointments showed about 97% and 98% wound closure, respectively, on day fifteen, while the closure of negative control was 88%. In addition, both preparations of the crude extract showed significant increase (p &lt; 0.001) in wound tensile strength as compared to negative controls. Mice treated with 100 mg/kg, 200 mg/kg and 400 mg/kg extract showed significant (p &lt; 0.001) reduction in paw oedema starting from the 2nd h as compared to negative controls with maximum inhibition of 56.27%, 57.36% and 58.18%, respectively. The crude extract also showed antibacterial activity against both Gram- positive and Gram-negative bacteria, with the former being more sensitive than the latter. The lowest MIC values were observed for S. aureus, (2.6 µg/µl) and the highest (350 µg/µl) for all the studied Gram-negative organisms. The MICindex of the extract was found to be 2. The extract was effective in scavenging DPPH radicals and its IC50 value was 2.77 mg/ml. In addition, quantification of total flavonoid content revealed the presence of 43.03 mg quercetin equivalent flavonoids in the extract. In conclusion, the extract of D. penninervum is endowed with significant wound healing activity that could be attributed to antibacterial, anti-inflammatory and antioxidant activities of the plant.Keywords: Discopodium penninervum, wound healing, excision and incision models, antibacterial activity, anti-oxidant activity

IN VITRO WOUND HEALING AND ANTIMICROBIAL PROPERTY OF COTTON FABRICS COATED OPTIMIZED SILVER NANOPARTICLES SYNTHESIZED USING PELTOPHORUM PTEROCARPUM LEAF EXTRACTS

Objective: The present study was aimed to study at investigating the antibacterial potential of silver nanoparticles (AgNPs) coated cotton fabrics against different pathogens and also for their wound healing property using fibroblasts cells.&#x0D; Materials and Methods: The leaf extracts of Peltophorum pterocarpum were used for the synthesis of AgNPs and were characterizing using ultraviolet-visible spectrophotometer, transmission electron microscopy, energy dispersive X-ray (EDX) spectroscopy, dynamic light scattering analysis, and zeta potential measurement. The AgNPs were coated on cotton fabrics and tested for their antibacterial efficacy using agar well diffusion method. The wound healing property of synthesized AgNPs was tested using fibroblast 3T3 cells.&#x0D; Results: The plant extracts of P. pterocarpum were utilized for AgNPs. The optimum condition for synthesizing AgNPs was found to be 1 mg/ml plant concentration, 7 pH, 1 mM silver nitrate concatenation, and incubation temperature of 37°C. The shape of synthesized AgNPs was found to be spherical with an average size between 20 and 50 nm, and elemental silver peaks were confirmed by EDX spectrum. The cotton fabrics coated with AgNPs show good zone of inhibition against all the tested pathogens and the treated fabrics were also characterized using scanning electron microscope which reveals the presence of AgNPs on the fabrics. The scratch assay reveals that the AgNPs have good wound healing activity when tested against fibroblast 3T3.&#x0D; Conclusion: The present results conclude that the synthesized AgNPs have good stability with potent antimicrobial activity when coated with cotton fabrics. The AgNPs also found to have good activity significant wound healing activity when tested using fibroblast cells.