Publications by authors named "Bohn G"

Introduction: Biofilm is linked through a variety of mechanisms to the pathogenesis of chronic wounds. However, accurate biofilm detection is challenging, demanding highly specialized and technically complex methods rendering it unapplicable for most clinical settings. This study evaluated promising methods of bedside biofilm localization, fluorescence imaging of wound bacterial loads, and biofilm blotting by comparing their performance against validation scanning electron microscopy (SEM).

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The Association for the Advancement of Wound Care sets out its bid for the WUWHS 2026 Congress to be held in Chicago, Illinois, US.

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The retrospective pragmatic real-world data (RWD) study compared the healing outcomes of diabetic foot ulcers (DFUs) treated with either ovine forestomach matrix (OFM) (n = 1150) or collagen/oxidised regenerated cellulose (ORC) (n = 1072) in out-patient wound care centres. Median time to wound closure was significantly (P = .0015) faster in the OFM group (14.

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Chronic wound treatment currently relies heavily on visual assessment by clinicians; however, the clinical signs and symptoms of infection and inflammation are unreliable in chronic wounds. The specialty of wound care has witnessed the advent of advanced interventions, such as cellular and/or tissue based products (CTP). The success of advanced therapies relies on preparing the wound bed by reducing bacterial burden and inflammation.

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Objective: Soft tissue defects, especially those involving exposed vital structures, present a reconstructive challenge because poor vascularity of such defects typically makes immediate skin grafting unviable. Where flap procedures are inappropriate or not possible, dermal matrices represent an alternative reconstructive option for defects with denuded vital structures. With dermal matrices becoming increasingly available and technologically advanced, we evaluated an ovine-derived extracellular matrix graft in the reconstruction of complex soft tissue defects involving exposed vital structures.

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Squamous cell (SCC) and basal cell (BCC) skin cancer are common presentations in elderly patients. Skin cancer are often located in sun exposed areas where damage from exposure has occurred. The sun exposed areas are often difficult to close or would require more complex measures to cover.

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Pressure ulcers (PrUs) affect approximately 2.5 million patients and account for 60,000 deaths annually. They are associated with an additional annual cost of $43,000 per related hospital stay and a total cost to the US health care system as high as $25 billion.

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Normal wound healing is accomplished through a series of well-coordinated, progressive events with overlapping phases. Chronic wounds are described as not progressing to healing or not being responsive to management in a timely manner. A consensus panel of multidisciplinary wound care professionals was assembled to (1) educate wound care practitioners by identifying key principles of the basic science of chronic wound pathophysiology, highlighting the impact of metalloproteinases and biofilms, as well as the role of the extracellular matrix; and (2) equip practitioners with a systematic strategy for the prevention and healing of acute injuries and chronic wounds based upon scientific evidence and the panel members' expertise.

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Many wound care centers (WCCs) provide a specialized level of care using various wound care therapies and are managed by quali ed healthcare professionals (QHPs) from di erent specialty backgrounds such as family medicine, podiatry, and plastic surgery. However, these QHPs are sometimes challenged by reimbursement issues, limited therapy and dressing options, reduced access to multidisciplinary team members, and cost-driven factors unique to WCCs. To help address these issues, a meeting was convened by an expert panel of WCC physicians to discuss best practices for treating complex patients in a WCC.

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The presence of bio lm remains a challenging factor that contributes to the delayed healing of many chronic wounds. The major threat of chronic wound bio lms is their substantial protection from host immunities and extreme tolerance to antimicrobial agents. To help guide the development of wound treatment strategies, a panel of experts experienced in clinical and laboratory aspects of biofilm convened to discuss what is understood and not yet understood about biofilms and what is needed to better identify and treat chronic wounds in which biofilm is suspected.

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The ontogeny of the natural, public IgM repertoire remains incompletely explored. Here, high-resolution immunogenetic analysis of B cells from (unrelated) fetal, child, and adult samples, shows that although fetal liver (FL) and bone marrow (FBM) IgM repertoires are equally diversified, FL is the main source of IgM natural immunity during the 2nd trimester. Strikingly, 0.

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Measuring and monitoring wound progress by size are an important management tool. Wound progress and size can help assess effectiveness of therapy and predict healing, while preparing for application of advanced wound products and treatments. The authors outline methods of tracking wound size and predictors of healing in venous leg ulcers.

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Broad-spectrum metalloproteinase (MMP) reduction along with inherent aspects of an extracellular matrix (ECM) dressing can bring about improved wound healing outcomes and shorter treatment duration. Initial reports of clinical effectiveness of a new ovine-based collagen extracellular matrix (CECM) dressing demonstrate benefits in chronic wound healing. CECM dressings are processed differently than oxidized regenerated cellulose/collagen dressings.

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Wound complications such as infection continue to in ict enormous nancial and patient quality-of-life burdens.The traditional practice of using antiseptics and antibiotics to prevent and/or treat infections has been questioned with increasing concerns about the cytoxitity of antiseptics and proliferation of antibiotic resistant bacteria. Solutions of sodium hypochlorite (NaOCl), commonly known as Dakin's solution, have been used in wound care for 100 years.

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Background: We sought to develop a consensus statement for the use of off-loading in the management of diabetic foot ulcers (DFUs).

Methods: A literature search of PubMed for evidence regarding off-loading of DFUs was initially conducted, followed by a meeting of authors on March 15, 2013, in Philadelphia, Pennsylvania, to draft consensus statements and recommendations using the GRADE (Grading of Recommendations Assessment, Development, and Evaluation) approach to assess quality of evidence and develop strength of recommendations for each consensus statement.

Results: Evidence is clear that adequate off-loading increases the likelihood of DFU healing and that increased clinician use of effective off-loading is necessary.

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The purpose of this study was to describe the rate of closure observed in venous leg ulcers during treatment with ovine collagen extracellular matrix dressings and compression. Fourteen patients with 23 wounds were retrospectively evaluated with respect to healing rates, time to closure, and weekly facility charge fees.

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We report that subunits of human nuclear proteasomes carry a previously unrecognised, constitutive posttranslational modification. Subunits with this modification are not visualised by SDS-PAGE, which is used in almost all denaturing protein gel electrophoresis. In contrast, CTAB-PAGE readily visualises such modified subunits.

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The American College of Hyperbaric Medicine provides this document for hospital credentialing committees as national standards for credentialing hyperbaric physicians. These recommendations represent the consensus opinion of expert leaders in the field of hyperbaric medicine. The principles set forth in this document are intended to serve as a guideline to assist healthcare organizations.

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A chronic wound fails to complete an orderly and timely reparative process and places patients at increased risk for wound complications that negatively impact quality of life and require greater health care expenditure. The role of extracellular matrix (ECM) is critical in normal and chronic wound repair. Not only is ECM the largest component of the dermal skin layer, but also ECM proteins provide structure and cell signalling that are necessary for successful tissue repair.

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Background: The management of postostomy takedown surgical wound sites can be challenging. Complications from these contaminated wounds can lead to serious complications such as hernia formation and increased healthcare costs. Negative pressure wound therapy (NPWT) has been shown to be potentially helpful in managing these heavily colonized wound sites.

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The 40-fold increase in childhood megakaryocyte-erythroid and B-cell leukemia in Down syndrome implicates trisomy 21 (T21) in perturbing fetal hematopoiesis. Here, we show that compared with primary disomic controls, primary T21 fetal liver (FL) hematopoietic stem cells (HSC) and megakaryocyte-erythroid progenitors are markedly increased, whereas granulocyte-macrophage progenitors are reduced. Commensurately, HSC and megakaryocyte-erythroid progenitors show higher clonogenicity, with increased megakaryocyte, megakaryocyte-erythroid, and replatable blast colonies.

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Biallelic mutations in the untranslated regions (UTRs) of mRNAs are rare causes for monogenetic diseases whose mechanisms remain poorly understood. We investigated a 3'UTR mutation resulting in a complex immunodeficiency syndrome caused by decreased mRNA levels of p14/robld3 by a previously unknown mechanism. Here, we show that the mutation creates a functional 5' splice site (SS) and that its recognition by the spliceosomal component U1 snRNP causes p14 mRNA suppression in the absence of splicing.

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Background: This randomized, evaluator-masked, controlled study evaluates the effectiveness of oral in contrast to written instruction of oral hygiene.

Methods: Eighty-three students without clinical signs of periodontitis were randomly assigned to either a control group or one of three experimental conditions: 1) written instruction, 2) standardized oral instruction, or 3) individualized oral instruction. Plaque and bleeding indices were assessed to analyze intervention effects on oral health and oral hygiene skills.

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The molecular heterogeneity of severe congenital neutropenia (SCN) is increasingly recognized and may influence the risk-benefit assessment of therapeutic strategies. We report on a patient with p14 deficiency who succumbed to severe grade IV graft-versus-host disease (GvHD) after a human leukocyte antigen-identical bone marrow transplantion (BMT) from a sibling donor. Before BMT, in vitro generated p14-deficient dendritic cells showed a markedly elevated tumor necrosis factor (TNF-) alpha production upon toll-like receptor stimulation.

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Purpose Of Review: This review summarizes the recent advances in the diagnosis and molecular characterization of isolated and syndromal forms of severe congenital neutropenia.

Recent Findings: It has become evident that severe congenital neutropenia comprises several genetically distinct entities. In 1999, mutations were identified in the neutrophil elastase gene ELA2.

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