Negative Pressure Wound Therapy for Chronic Wounds.

Chronic wounds, including those caused by venous and arterial insufficiency, diabetic complications, and pressure-induced ulcers, pose significant treatment challenges. Negative pressure wound therapy has been increasingly used for managing these wounds. This treatment aims to promote wound healing, prepare the wound bed for further surgical intervention, minimize the risk of infection, and potentially shorten the time to wound healing.

Keloid Patient Plasma-Derived Exosomal hsa_circ_0020792 Promotes Normal Skin Fibroblasts Proliferation, Migration, and Fibrogenesis via Modulating miR-193a-5p and Activating TGF-β1/Smad2/3 Signaling.

Background: Keloids are fibroproliferative disorders, which seriously affect the quality of life of patients with keloids. Additionally, circRNAs are enriched within exosomes derived from human blood samples, whereas their relationship with keloids remains largely unknown. It has been reported that hsa_circ_0020792 was abnormally upregulated in keloid tissues.

The efficacy and safety of Rhodiola formulation for the treatment of ischemic heart disease: A protocol for systematic review and meta-analysis.

Background: Ischemic heart disease is the main cause of heart failure, which seriously endangers the health of people and puts a huge burden on health care resources all over the world. We propose the current protocol to evaluate the effectiveness and safety of Rhodiola on ischemic heart disease, providing a reference for clinical use.

Methods: Two research members will electronically and independently search 4 English databases (EMBASE, PubMed, National Guideline Clearinghouse, and Cochrane Central Register of Controlled Trials) and 4 Chinese databases (Chinese Biomedical Literature Database, Chinese National Knowledge Infrastructure, Wanfang Database, and VIP Database) from their inception to October 2020.

Structure-based discovery and redesign of TGF-β1 Elbow epitope recognition by its type-II receptor in hypertrophic scarring biotherapy.

Transforming growth factor-β1 (TGF-β1) signaling pathway has been implicated in the fibroblast activation of hypertrophic scarring (HS). Previously, we proposed a new biotherapeutic strategy to combat HS by disrupting the intermolecular interaction of TGF-β1 with its cognate type-II receptor (TβR-II). Here, we further demonstrate that the binding site of TGF-β1 to TβR-II is not overlapped with the conformational wrist epitope and linear knuckle epitope that are traditionally recognized as the functional binding sites of bone morphogenetic protein-2 (BMP-2) to its type-II receptor (BMPR-II), which can thus be regarded as a new functional site we called elbow epitope.

An Application of a Negative-Pressure Wound Dressing for Partial- or Full-Thickness Burn Wounds.

Negative-pressure wound therapy is widely used in burn populations. Traditionally, negative-pressure devices use persistent vacuum suction, requiring a longer hospital stay. In this study, we applied a novel negative-pressure wound dressing for burn wounds, which eliminates the hospital stay.

Untethered microgripper-the dexterous hand at microscale.

Untethered microgrippers that can navigate in hard-to-reach and unpredictable environments are significantly important for biomedical applications such as targeted drug delivery, micromanipulation, minimally invasive surgery and in vivo biopsy. Compared with the traditional tethered microgrippers, the wireless microgrippers, due to the exceptional characteristics such as miniaturized size, untethered actuation, dexterous and autonomous motion, are projected to be promising microtools in various future applications. In this review, we categorize the untethered microgrippers into five major classes, i.

CTHRC1 promotes wound repair by increasing M2 macrophages via regulating the TGF-β and notch pathways.

The healing of acute wounds is vital to humans and is a well-orchestrated process that involves systemic and local factors. However, there is a lack of effective and safe clinical therapies. The collagen triple helix repeat containing 1 (CTHRC1) protein is a type of exocrine protein that has been recently reported to contribute to tissue repair.

Structure-based derivation of peptide inhibitors to target TGF-β1 receptor for the suppression of hypertrophic scarring fibroblast activation.

The intermolecular recognition and interaction between human transforming growth factor β-1 (TGF-β1) and its cognate receptor TβRII have been implicated in the pathological condition of hypertrophic scarring (HS). Here, we attempted to rationally derive peptide inhibitors from the complex interface of TGF-β1 with TβRII to disrupt such interaction for the suppression of fibroblast activation involved in HS. A synthetic strategy that integrated computational design and fluorescence-based assay was described to examine the structural basis and energetic property of TGF-β1-TβRII crystal structure, from which a small peptide segment in the complex binding site was stripped artificially.

Suppressive effects of induced pluripotent stem cell-conditioned medium on in vitro hypertrophic scarring fibroblast activation.

Hypertrophic scarring (HS) is a type of fibrosis that occurs in the skin, and is characterized by fibroblast activation and excessive collagen production. However, at present, therapeutic strategies for this condition are ineffective. Previous studies have identified that the mutual regulation of chronic inflammation, mechanical force and fibroblast activation leads to the formation of HS.

A comparison of two different sub-dermal trimming techniques for the treatment of axillary osmidrosis.

Background: Axillary osmidrosis is a distressing condition caused by excessive secretion by the apocrine glands. Surgical ablation of the subcutis without skin excision is the most popular solution for axillary osmidrosis. Various special operating instruments have been employed to help remove the subcutis.

Lumican Accelerates Wound Healing by Enhancing α2β1 Integrin-Mediated Fibroblast Contractility.

Lumican is a dermatan sulfate proteoglycan highly expressed in connective tissue and has the ability to regulate collagen fibril assembly. Previous studies have shown that lumican is involved in wound healing, but the precise effects of lumican on reepithelialization and wound contraction, the two pivotal aspects of skin wound healing, have not been investigated. Here we explored the roles of lumican in fibroblast contractility, a main aspect of skin wound healing, by adopting mice skin wound healing model and the corresponding in vitro cellular experiments.

Suppression of cell proliferation and collagen production in cultured human hypertrophic scar fibroblasts by Sp1 decoy oligodeoxynucleotide.

Hypertrophic scars are characterized by the abnormal proliferation of fibroblasts and an overproduction of collagen. The Sp1 transcription factor is involved in the stimulation of collagen synthesis. A decoy oligonucleotide (ODN) targeting Sp1 was designed and transfected into hypertrophic scar fibroblasts (HSFs) cells using cationic liposomes.

Surgical subcision as a cost-effective and minimally invasive treatment for axillary osmidrosis.

Background: Axillary osmidrosis, characterized by unpleasant odor and occasional staining of clothing, is a personal discomfort and social impairment for people who suffer from it. Various types of surgical procedures involving instrumented-assisted tools (lasers, ultrasonic, endoscope, and others) have shown relatively positive results; however, for patients in developing countries, especially in China, these treatments are inconvenient and cost-ineffective.

Objective: To introduce a minimal incision surgical procedure with skin flap treatment that removes the apocrine sweat glands in the subcutaneous tissue through a 1-cm-long incision without instrument-assisted tools.

[Effect of recombinant Sp1 gene on the collagen expression of hypertrophic scar fibroblasts in vitro].

Objective: To explore the feasibility of transfecting recombinant Sp1 into hypertrophic scar fibroblasts and investigate the proliferation and collagen I, III synthesis in the transfected cells.

Methods: Recombinant human Sp1 was transfected into hypertrophic scar fibroblasts with the karyocyte expressive vector. The expression of Sp1, collagen I, III mRNA was tested by real time PCR.

[The prevalence and risk factors for coronary stenosis in patients with cerebral infarction].

Objective: To study the morbidity rate of and relevance to coronary stenosis in cerebral infarction patients.

Methods: CT coronary angiography was performed in 112 cases of cerebral infarction after CT cerebral angiography. Multivariate logistic regression analysis was carried out between the clinical data and coronary stenosis.

Etiology and management of axillary bromidrosis: a brief review.

Background: Axillary bromidrosis is a distressing condition that poses significant social embarrassment in almost all the countries over the world. However, its definite etiology has not been generalized yet. There have been a lot of treatments for bromidrosis, which can be roughly divided into two types: conservative management and radical surgical therapy.

Combined fascial flap and expanded skin flap for enveloping Medpor framework in microtia reconstruction.

The Medpor implant is another choice for a new auricular framework besides autogenous costal cartilage. However, its relatively frequent exposure and less-matching skin coverage discourage surgeons from using it. In this article, we present a new two-flap method, a combination of the temporoparietal fascial flap and the expanded skin flap, for wrapping the Medpor implant in microtia reconstruction.

Fat embolism syndromes following liposuction.

Fat embolism syndrome (FES) after liposuction is likely a life-threatening disorder, though its incidence is low. The three chief clinical manifestations include respiratory insufficiency, cerebral involvement, and petechial rash. Although FES is a multisystem disorder, the most seriously affected organs are the lungs, brain, cardiavascular system, and skin.

Aesthetic rhinoplasty of the Asian nasal tip: a brief review.

Tip surgery, the most important part of the rhinoplasty procedure, has entered a new era in the past few decades. Various treatment protocols have been attempted. To date, however, opinions on the management of the Asian tip have not been solidified.