- Bio-synthesis of Barleria gibsoni leaf extract mediated zinc oxide nanoparticles and their formulation gel for wound therapy in nursing care of infants and children. [Journal Article]
- JPJ Photochem Photobiol B 2018 Oct 18; 189:267-273
- Bio-synthesis of nano-metal oxide particles is gaining lot of significance and recommended as promising substitute not only physical methods but also chemical methods. Here in, we demonstrate the nan...
Bio-synthesis of nano-metal oxide particles is gaining lot of significance and recommended as promising substitute not only physical methods but also chemical methods. Here in, we demonstrate the nano-zinc oxide (nano-ZnO) particles were successfully prepared by an eco-friendly process using plant Barleria gibsoni (B. gibsoni) aqueous leaf extract. The water leaf extract of B. gibsoni responsible for not only reducing source but also protective agent. The prepared nano-ZnO particles were studied by UV-Vis diffuse reflectance (UV-DRS), Photoluminescence (PL), Fourier transform (FT-IR) infrared spectroscopy, X-ray diffraction spectroscopy (X-RD), transmission electron microscopy (TEM), thermal stability was studied by thermogravimetric and differential thermal (TG-DTA) analysis and particle size by zeta sizer, dynamic light scattering (DLS). UV-DRS spectrum of nano-ZnO particles showed below at wave length 400 nm. FT-IR spectra showed that plant metabolites like polyphenols, flavonoids and amino acids etc., are act as reducing and protective agent. X-RD studies revealed the formed nano-ZnO particles have hexagonal (wurtzite) structure. TEM analysis confirmed the range of nanoparticles between 30 and 80 nm, which is supported by DLS analysis. The antibacterial property of synthesized nano-ZnO particles was tested with bacterial pathogens showed good results. The developed nano-ZnO gel act as an efficient and superior another tropical antimicrobial formulations for healing of burn infections. Moreover, the formulated nano-ZnO gel exhibited a remarkable wound healing potential in rats.
- Treatment of intractable oral ulceration with an oral mucosa equivalent. [Journal Article]
- JBJ Biomed Mater Res B Appl Biomater 2018 Nov 12
- The current use of steroids or pharmacological immunomodulators for the treatment of intractable oral ulceration is ineffective, necessitating newer cell-based therapeutic approaches. We examined the...
The current use of steroids or pharmacological immunomodulators for the treatment of intractable oral ulceration is ineffective, necessitating newer cell-based therapeutic approaches. We examined the potential efficacy of an oral mucosa equivalent developed in this study in an in vivo model of repeat major oral ulceration mimicking the intractable oral ulceration observed clinically. Oral mucosal samples and plasma fibrin were obtained from Sprague-Dawley rats. The oral mucosa equivalents were prepared with cultured mucosal keratinocytes and plasma fibrin mixed with cultured fibroblasts. Ulcers were chemically induced on the rat buccal mucosa thrice in 3 weeks and covered with or without mucosa equivalents. Gross and microscopic findings and mRNA expression levels were compared between the ulcer control and mucosa equivalent groups. Oral mucosal keratinocytes and fibroblasts were cultured in vitro to achieve high viability and colony-forming efficiency. The equivalents showed epithelial and subepithelial structures similar to those of oral mucosa and exhibited high p63 positivity. In the in vivo study, ulceration was resolved earlier without significant granulation or scarring in the equivalent group than in control group (p < 0.05). Microscopic examinations revealed rapid re-epithelialization and less fibrosis in the equivalent group than in the control group (p < 0.05). Mucosa equivalent-covered ulcers showed histological characteristics similar to those of the normal buccal mucosa and exhibited lower expression of TGFB1, ACTA2, and FN1 mRNAs than the control group. The in vitro-engineered oral mucosa equivalent promotes ulcer healing without scarring and functional deficits. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res B Part B: Appl Biomater, 2018.
- Neuromuscular electrostimulation on lower limb wounds. [Journal Article]
- BJBr J Nurs 2018 Nov 08; 27(20):S16-S21
- The geko™ is a disposable neuromuscular electrostimulation (NMES) device intended to increase blood circulation and promote wound healing in a range of lower limb conditions. The purpose of this case...
The geko™ is a disposable neuromuscular electrostimulation (NMES) device intended to increase blood circulation and promote wound healing in a range of lower limb conditions. The purpose of this case series was to evaluate the therapeutic effect of the geko device on wound healing outcomes over an 8-week period. Thirty patients with non-healing wounds (≥ 12-week duration) of either venous leg ulceration (VLU), mixed leg ulceration (MLU) or diabetic foot ulceration aetiology were recruited from a local outpatient wound clinic in the South Wales area. Over the 8 weeks 2 participants (8%) achieved complete re-epithelialisation between baseline and endpoint. Mean wound surface area decreased (7.6 cm2) and there was an increase of 21% in the mean percentage of granulation tissue in the wound bed. Pain levels reduced in 52% of patients who completed the study, but the extent of oedema reduction was difficult to establish given that 76% of the cohort were treated with a form of compression as part of standard care. The findings support the use of the therapy in patients with painful VLUs and MLUs, but further research needs to be conducted to establish the generalisability of the findings to the wider population of patients living with chronic wounds of differing aetiology in the lower limb.
- Time to Abandon Antimicrobial Approaches in Wound Healing: A Paradigm Shift. [Journal Article]
- WWounds 2018; 30(11):345-352
- Antimicrobial approaches (eg, antibiotics and antiseptics) have been used for decades in the treatment of infected wounds, ulcers, and burns. However, an increasing number of meta-analyses have raise...
Antimicrobial approaches (eg, antibiotics and antiseptics) have been used for decades in the treatment of infected wounds, ulcers, and burns. However, an increasing number of meta-analyses have raised questions regarding the therapeutic value of these approaches. Newer findings show that the body actively hosts an ecosystem of bacteria, fungi, viruses, and mites on its outer surfaces, known as the microbiome, as part of its defense against pathogens. Antimicrobials would disrupt this system and thereby work against the strategy the body has chosen. Recently, a new technology, micropore particle technology (MPPT), has been identified; it is not an antimicrobial but instead acts as a passive immunotherapy that disrupts the weaponry bacteria and fungi use to inhibit the immune system, allowing the immune system to recover. Clinical findings show MPPT removes wound infections 60% quicker than antibiotics and antiseptics and promotes the healing of chronic wounds that have not responded to antimicrobials. These effects are achieved without antimicrobial action and, considering the limited therapeutic benefits of antibiotics and antiseptics for wound infections, it is valid to question the use of antimicrobial approaches in wound care and the dogma that a reduction in microbial burden will lead to a reduction in infection. Instead, it may be time to consider a paradigm shift in wound healing away from antimicrobials and towards therapies that support the immune system and the microbiome. This review covers the increasing evidence that infections on external surfaces have to be treated fundamentally differently to internal infections.
- Platelet-rich Plasma and Other Hemocomponents in Veterinary Regenerative Medicine. [Journal Article]
- WWounds 2018; 30(11):329-336
- Platelet-rich plasma, platelet-rich fibrin, fibrin glue, and platelet lysate are the most widely used nontransfusional hemocomponents that, as biological and therapeutic aids, enhance the physiologic...
Platelet-rich plasma, platelet-rich fibrin, fibrin glue, and platelet lysate are the most widely used nontransfusional hemocomponents that, as biological and therapeutic aids, enhance the physiological reactions after an injury to facilitate the repair and regeneration processes. Recently, this type of therapy also has significantly expanded in veterinary medicine. Due to many similarities, the animal patient could be a good reference as a study model for humans, especially for chronic and difficult-to-heal injuries. This review discusses the current state of hemocomponent use for topical application in veterinary medicine, with a comparison with human medicine.
- Therapeutic Efficacy of Home-Use Photobiomodulation Devices: A Systematic Literature Review. [Journal Article]
- PLPhotomed Laser Surg 2018 Nov 10
- CONCLUSIONS: Home-use PBM devices appear to mediate effective, safe treatments in a variety of conditions that require frequent applications. Conclusive evaluation of their efficacy requires additional, randomized controlled studies.
- A systematic review of local antibiotic devices used to improve wound healing following the surgical management of foot infections in diabetics. [Journal Article]
- BJBone Joint J 2018; 100-B(11):1409-1415
- CONCLUSIONS: There is a lack of good-quality evidence to support the use of local antibiotic delivery devices in the treatment of foot infections in patients with diabetes. Cite this article: Bone Joint J 2018;100-B:1409-15.
- Infiltrated M2 tumour-associated macrophages in the stroma promote metastasis and poor survival in oesophageal squamous cell carcinoma. [Journal Article]
- HHHistol Histopathol 2018 Nov 12; :18061
- Although M2 tumour-associated macrophages (M2 TAMs) have been shown to be associated with the progression and metastasis of breast cancer, their role in oesophageal squamous cell carcinoma (ESCC) rem...
Although M2 tumour-associated macrophages (M2 TAMs) have been shown to be associated with the progression and metastasis of breast cancer, their role in oesophageal squamous cell carcinoma (ESCC) remains less well understood. Therefore, to understand the clinicopathological significance of infiltrated M2 TAMs in ESCC, statistical analysis was performed after immunohistochemical evaluation of CD163 expression, a well-accepted surface marker of M2 TAMs in ESCC. To gain insight into the effect of M2 TAMs, ESCC cell lines Eca109 and KYSE150 cells were co-cultured with M2 TAMs artificially induced from THP-1 cells. The variations in the proliferation, migration and invasion were assessed using the MTT, wound-healing and Transwell assays, respectively. The variation in the typical biomarkers of the epithelial-mesenchymal transition (EMT) was evaluated using western blotting. Infiltrated M2 TAMs were confirmed to predominate in the stroma of ESCC relative to normal controls. Moreover, it turned out that M2 TAMs were shown to promote the migration and invasion of ESCC cells but not proliferation. Furthermore, M2 TAMs were observed to induce EMT in ESCC cells. Together, our results showed that infiltrated M2 TAMs in the stroma is a feature accompanying ESCC metastasis and that M2 TAMs can promote the migration and invasion, but not proliferation, of ESCC cells, thereby inducing EMT. Thus, M2 TAMs could be an alternative therapeutic target in ESCC.
- Apparatus for Harvesting Tissue Microcolumns. [Journal Article]
- JVJ Vis Exp 2018 Oct 25; (140)
- This manuscript describes the production process for a laboratory apparatus, made from off-the-shelf components, that can be used to collect microcolumns of full-thickness skin tissue. The small size...
This manuscript describes the production process for a laboratory apparatus, made from off-the-shelf components, that can be used to collect microcolumns of full-thickness skin tissue. The small size of the microcolumns allows donor sites to heal quickly without causing donor site scarring, while harvesting full-thickness tissue enables the incorporation of all cellular and extracellular components of skin tissue, including those associated with deeper dermal regions and the adnexal skin structures, which have yet to be successfully reproduced using conventional tissue engineering techniques. The microcolumns can be applied directly into skin wounds to augment healing, or they can be used as the autologous cell/tissue source for other tissue engineering approaches. The harvesting needles are made by modifying standard hypodermic needles, and they can be used alone for harvesting small amounts of tissue or coupled with a simple suction-based collection system (also made from commonly available laboratory supplies) for high-volume harvesting to facilitate studies in large animal models.
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- Extrusion of ventriculoperitoneal shunt cathether through a herniotomy wound in an infant: Case report and review of literature. [Case Reports]
- NJNiger J Clin Pract 2018; 21(11):1542-1547
- Cerebrospinal fluid (CSF) diversion through the insertion of ventriculoperitoneal shunt (VPS) is the standard treatment for hydrocephalus. Many complications have been reported following VPS insertio...
Cerebrospinal fluid (CSF) diversion through the insertion of ventriculoperitoneal shunt (VPS) is the standard treatment for hydrocephalus. Many complications have been reported following VPS insertion. A case of extrusion of a VPS through a herniotomy wound is reported in a 4-month old male infant, who had a herniotomy performed on him by a General Practitioner (GP) for scrotal swelling. The extruded VPS was first externalized to the chest to aid healing of the groin wound and maintain CSF diversion. Later the VPS was removed to aid sepsis control. Although the parents did not comply with follow up instructions following their request for discharge, the patient remained well during telephonic communication 7 weeks after discharge. The case demonstrated higher risk for abdominal complications in the setting of background spina bifida and presence of intraperitoneal catheter. The need for optimal management of such complications by appropriate specialists cannot be over emphasised.