Immunogloblin A (IgA) vasculitis is the most common systematic vasculitis disorder characterized by leykocytoclastic vasculitis , for example, purpura with white blood cell destruction vasculitis caused by allergic mechanisms. The main symptoms of this disease are purpura, arthritis, abdominal pain, gastrointestinal bleeding, and nephritis. We report the case of a 66-year-old man with IgA vasculitis. He was diagnosed with hypopharyngeal cancer and underwent radio-chemotherapy at our department. On the following day, he underwent tracheotomy because of recurrent laryngeal nerve paralysis associated with cancer treatment. His wound infection remained after the tracheostomy, and he complained of purpura on both legs. On the basis of these clinical courses we diagnosed IgA vasculatis caused by wound infection. This case illustrates that it is important to consider the possibility of IgA vasculatis if skin eruption is observed concurrent with wound infection.
Download full-text PDF |
Source |
---|
Biochemistry
January 2025
Department of Biochemistry, Genetics and Microbiology, Faculty of Natural and Agricultural Sciences, University of Pretoria, Pretoria 0002, South Africa.
C-terminal amidation of antimicrobial peptides (AMPs) is a frequent minor modification used to improve antibacterial potency, commonly ascribed to increased positive charge, protection from proteases, and a stabilized secondary structure. Although the activity of AMPs is primarily associated with the ability to penetrate bacterial membranes, hitherto the effect of amidation on this interaction has not been understood in detail. Here, we show that amidation of the scorpion-derived membranolytic peptide AamAP1-Lys produces a potent analog with faster bactericidal activity, increased membrane permeabilization, and greater Gram-negative membrane penetration associated with greater conformational flexibility.
View Article and Find Full Text PDFNanoscale
January 2025
Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710054, China.
MXenes, with their good biocompatibility, excellent photovoltaic properties, excellent physicochemical properties, and desirable bioactivity, have broad application prospects in the field of tissue regeneration. MXenes have been used in a wide range of applications including biosensing, bioimaging, tumour/infection therapy, bone regeneration and wound repair. By applying bioactive materials to modify the surface of MXenes, a series of multifunctional MXene-based nanomaterials can be designed for different biomedical applications to achieve better therapeutic effects or more desirable biological functions.
View Article and Find Full Text PDFMicrobiol Spectr
January 2025
Department of Microbiology, University of Massachusetts, Amherst, Massachusetts, USA.
Unlabelled: is an acid-fast, aerobic, non-motile, and biofilm-forming bacterium. The increasing prevalence of mycobacterial infections makes it necessary to find new methods to combat the resistance of bacteria to conventional antibiotics. is an emerging pathogen that is intrinsically drug resistant due to several factors, including an impermeable cell envelope, drug efflux pumps, target-modifying enzymes, and the ability to form thick, robust biofilms.
View Article and Find Full Text PDFFront Cell Infect Microbiol
January 2025
Second Surgical Oncology Department, Regional Institute of Oncology, Iasi, Romania.
Introduction: Antibiotic overuse is driving a global rise in antibiotic resistance, highlighting the need for robust antimicrobial stewardship (AMS) initiatives to improve prescription practices. While antimicrobials are essential for treating sepsis and preventing surgical site infections (SSIs), they can inadvertently disrupt the gut microbiota, leading to postoperative complications. Treatment methods vary widely across nations due to differences in drug choice, dosage, and therapy duration, affecting antibiotic resistance rates, which can reach up to 51% in some countries.
View Article and Find Full Text PDFIn Vitro Model
June 2024
Department of Pharmacy, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH UK.
Unlabelled: Wound debridement is commonplace in expediting wound healing in the clinic. Despite this, there are limited resources available for simulation training for practitioners prior to facing real-life patients. Typically, citrus peels or porcine skin are employed in a vain attempt to improve debridement proficiency, yet these fail to provide a realistic experience of the textures and consistencies of wounds.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!