Valproic Acid Treatment Inhibits Vasopermeability and Improves Survival in Rats With Lethal Scald Injury.

The aim of this study was to examine whether administration of valproic acid (VPA), a histone deacetylase inhibitor, inhibits proinflammatory mediators and ameliorate visceral vasopermeability both in a rat model of major burn, and also in rat cultured endothelial cells stimulated with permeability evoking mediators. SD rats were subjected to a 50% TBSA full-thickness scald injury, and treated with either saline or VPA (300 mg/kg) intraperitoneally. Pulmonary vascular endothelial growth factor (VEGF), myeloperoxidase (MPO), pulmonary microvascular permeability, water content, and acetylation of histone H3K9 of lungs were evaluated.

[Bibliometric analysis of scientific articles on epidemiological study of burns in China].

To analyze the current status of epidemiological study of burns in China, and to explore the related strategies. Retrospective or cross-sectional scientific articles in Chinese or English on epidemiological study of burns in China published from January 2005 to December 2015 were systemically retrieved from 4 databases. The databases include and -.

Dermis, acellular dermal matrix, and fibroblasts from different layers of pig skin exhibit different profibrotic characteristics: evidence from in vivo study.

To explore the profibrotic characteristics of the autografted dermis, acellular dermal matrix, and dermal fibroblasts from superficial/deep layers of pig skin, 93 wounds were established on the dorsa of 7 pigs. 72 wounds autografted with the superficial/deep dermis and acellular dermal matrix served as the superficial/deep dermis and acellular dermal matrix group, respectively, and were sampled at 2, 4, and 8 weeks post-wounding. 21 wounds autografted with/without superficial/deep dermal fibroblasts served as the superficial/deep dermal fibroblast group and the control group, respectively, and were sampled at 2 weeks post-wounding.

Comparative effectiveness of different wound dressings for patients with partial-thickness burns: study protocol of a systematic review and a Bayesian framework network meta-analysis.

Introduction: Selecting a suitable wound dressing for patients with partial-thickness burns (PTBs) is important in wound care. However, the comparative effectiveness of different dressings has not been studied. We report the protocol of a network meta-analysis designed to combine direct and indirect evidence of wound dressings in the management of PTB.

Growth Arrest-Specific 6 Enhances the Suppressive Function of CD4CD25 Regulatory T Cells Mainly through Axl Receptor.

Growth arrest-specific (Gas) 6 is one of the endogenous ligands of TAM receptors (Tyro3, Axl, and Mertk), and its role as an immune modulator has been recently emphasized. Naturally occurring CD4CD25 regulatory T cells (Tregs) are essential for the active suppression of autoimmunity. The present study was designed to investigate whether Tregs express TAM receptors and the potential role of Gas6-TAM signal in regulating the suppressive function of Tregs.

[Protective effects of dimethyl sulfoxide on zymosan-insulted gut barrier impairment].

Objective: To explore the effect of dimethyl sulfoxide(DMSO) on suppressing the release of gut inflammatory cytokine and re-store of the barrier impairment following zymosan-insulted systemic inflammatory response syndrome (SIRS).

Methods: S D rats were randomly divided into four groups:sham with administration of normal saline (SS group); sham with administration of DMSO (DS group); zymosan with administration of normal saline (ZS group); and zymosan with administration of DMSO (ZD group), each group includes two subgroups at 4 h and 24 h after surgery. At 4 h and 24 h after intraperitoneal injection of zymosan (750 mg/kg), the levels of intestinal inflammatory cytokines (tumor necrosis factor-αand interleukin-10) and the activity of diamine oxidase in plasma were examined.

[Influences of exendin-4 on the secretion function of islet beta cells from rats in the early stage of severe scald].

To observe the secretion function changes of islet beta cells isolated from rats in the early stage of severe scald, and to explore the influence of them. Thirty-six Wistar rats were divided into sham injury (SI) group, sham injury+ exendin-4 (SIE) group, scald (S) group, and scald+ exendin-4 (SE) group according to the random number table, with 9 rats in each group. Rats in groups S and SE were inflicted with 50% total body surface area full-thickness scald by a 12-s immersion of back and a 6-s immersion of abdomen in 94 ℃ hot water.

Pre-expanded Transverse Cervical Artery Perforator Flap.

The face and neck are important areas for function and appearance. High-quality skin flaps should be used to reconstruct defects in the cervicofacial region. This article introduces the pre-expanded transverse cervical artery perforator flap, which can be used for cervicofacial reconstruction after burns, trauma, and tumor resection with excellent results.

Dermal Fibroblasts from Different Layers of Pig Skin Exhibit Different Profibrotic and Morphological Characteristics.

In vitro studies of human dermal fibroblast (DF) heterogeneity have long been reported, yet in vivo studies and related research on animals are rare. The objectives of the study were to determine whether the DFs of pigs exhibit heterogeneity and to identify an animal model for the in vivo study of DF heterogeneity. The skin of three female red Duroc pigs (FRDPs) was separated into six layers, and the second and fifth layers (i.

Revascularization and muscle adaptation to limb demand ischemia in diet-induced obese mice.

Background: Obesity and type 2 diabetes are major risk factors for peripheral arterial disease in humans, which can result in lower limb demand ischemia and exercise intolerance. Exercise triggers skeletal muscle adaptation including increased vasculogenesis. The goal of this study was to determine whether demand ischemia modulates revascularization, fiber size, and signaling pathways in the ischemic hind limb muscles of mice with diet-induced obesity (DIO).

Regenerative medicine in China: main progress in different fields.

Regenerative medicine (RM) is an emerging interdisciplinary field of research and China has developed the research quickly and impressed the world with numerous research findings in stem cells, tissue engineering, active molecules and gene therapy. Important directions are induced differentiation of induced pluripotent stem and embryo stem cells as well as somatic stem cell differentiation potential and their application in trauma, burns, diseases of aging and nerve regeneration. The products ActivSkin and bone repair scaffolds have been approved and are applied in the clinic, and similar products are being studied.

Biocompatible Silk Noil-Based Three-Dimensional Carded-Needled Nonwoven Scaffolds Guide the Engineering of Novel Skin Connective Tissue.

Retracting hypertrophic scars resulting from healed burn wounds heavily impact on the patients' life quality. Biomaterial scaffolds guiding burned-out skin regeneration could suppress or lessen scar retraction. Here we report a novel silk noil-based three-dimensional (3D) nonwoven scaffold produced by carding and needling with no formic acid exposure, which might improve burn healing.

High Yield Overexpression, Refolding, Purification and Characterization of Pseudomonas aeruginosa Type B-Flagellin: An Improved Method Without Sonication.

Pseudomonas aeruginosa as an opportunistic pathogen is a significant cause of acute and chronic infections in patients with compromised defenses. This bacterium is motile via a single polar flagellum made of polymerized flagellin subunits differentiated into two major serotypes: A and B. flagellin plays an important role as a virulence factor in the adhesion, colonization and invasion of P.

Apoptosis and death receptor signaling in diaphragm of burnt rats.

Background: Respiratory dysfunction is a frequent complication after severe burn injury. Respiratory muscle atrophy may induce respiratory dysfunction due to insufficient inspiratory motive power. Accumulated evidence suggests that apoptosis is very important in skeletal muscle atrophy in multiple pathologic conditions.

[Effects of ulinastatin on immune function of patients with severe burn injury].

Objective: To primarily evaluate the effects of ulinastatin on immune function of patients with severe burn injury.

Methods: Forty patients with severe burn admitted to our ward from March 2013 to October 2015, conforming to the study criteria, were divided into conventional treatment group (CT, n=20) and ulinastatin treatment group (UT, n=20) according to the random number table and patient's consent. After admission, patients in group CT received antishock treatment, antibiotic treatment, debridement, skin grafting, and nutrition support, etc.

[Effect of mitochondrial apoptosis on pulmonary fibrosis in rats with severe scald injury].

Objective: To explore the role of mitochondrial apoptosis on pulmonary fibrosis in rats with severe scald injury.

Methods: According to the random digital table, a total number of 32 Wistar rats were divided into 4 groups: sham burn (group A), burn group (group B), 12-week post burn recovery group (group C), and 12-week post burn recovery plus a second burn injury group (group D). In group A and group B, lung tissues were harvested on post burn day 4.

[Effects of ulinastatin on immune function of spleen in severely burned rats and its mechanism].

Objective: To observe the effects of ulinastatin on immune function of splenic CD4(+) T lymphocytes and CD4(+) CD25(+) regulatory T lymphocytes (Tregs) and content of high mobility group box 1 (HMGB1) in peripheral blood of severely burned rats, and to analyze the possible mechanisms.

Methods: Ninety-six male SD rats were divided into sham injury group, burn group, and ulinastatin group according to the random number table, with 32 rats in each group. Rats in sham injury group were sham injured on the back by immersing in 37 ℃ warm water for 12 s.

Pyruvate in oral rehydration salt improves hemodynamics, vasopermeability and survival after burns in dogs.

Background: To investigate whether pyruvate-enriched oral rehydration solution (Pyr-ORS), compared with citrate-enriched ORS (Cit-ORS), improves hemodynamics and organ function by alleviating vasopermeability and plasma volume loss during intra-gastric fluid rehydration in dogs with severe burn.

Methods: Forty dogs subjected to severe burn were randomly divided into four groups (n=10): two oral rehydrated groups with Pyr-ORS and Cit-ORS (group PR and group CR), respectively, according to the Parkland formula during the first 24h after burns. Other two groups were the intravenous (IV) resuscitation (group VR) with lactated Ringer's solution with the same dosage and no fluid rehydration (group NR).

Substance P combined with epidermal stem cells promotes wound healing and nerve regeneration in diabetes mellitus.

Exogenous substance P accelerates wound healing in diabetes, but the mechanism remains poorly understood. Here, we established a rat model by intraperitoneally injecting streptozotocin. Four wounds (1.

Cone of skin exists in rat: A "hypertrophic scarring free" animal.

Cone of skin is deemed to be related to hypertrophic scarring and absent in such traditionally "hypertrophic scarring and keloid free" animals as rat. The purpose of our study is to determine whether the cone of skin exists in rat. If it was, why it was ignored, and what was the meaning of it.

[Comparative proteomics study on lung tissue in early stage of burn-blast combined injury in rats].

Objective: To explore changes in the proteomics of lung tissue in early stage of burn-blast combined injury in rats.

Methods: According to a random digital table, a total number of 18 Sprague Dawley (SD) rats were divided into burn-blast combined injury group (n=9) and blast injury group (n=9). Lung protein samples were collected at 6 h post injury.

[Progress in treatment of refractory wound and its challenges we are facing].

Till now, though great progress has been made in the treatment of refractory wound, severe challenges are still awaiting to be solved. The strategy of treatment is generally either non-surgical treatment or surgical treatment. Non-surgical treatment includes physical therapy, negative pressure wound therapy, growth factor therapy, stem cell transplantation, gene therapy, application of new biological dressing, application of skin tissue engineering, three-dimensional bio-printing technology, biological therapy, and Chinese herbal medicine therapy.

Development of an Animal Model for Burn-Blast Combined Injury and Cardiopulmonary System Changes in the Early Shock Stage.

The purposes of this study were to establish an animal model for burn-blast combined injury research and elaborate cardiopulmonary system changes in the early shock stage. In this study, royal demolition explosive or RDX (hexagon, ring trimethylene nitramine) was used as an explosive source, and the injury conditions of the canine test subjects at various distances to the explosion (30, 50, and 70 cm) were observed by gross anatomy and pathology to determine a larger animal model of moderate blast injury. The canines were then subjected to a 35 % total body surface area (TBSA) full-thickness flame injury using napalm, which completed the development of a burn-blast combined injury model.