Prussian blue nanozymes were surface engineered with papain enzyme to develop processable nanoparticle dispersions with antioxidant and hydrolytic activities for biocatalytic applications. Enzyme coating improved the colloidal stability of the nanozymes and the obtained papain-Prussian blue hybrid showed remarkable peroxidase ( = 8.82 × 10 M s, = 12.
View Article and Find Full Text PDFACS Appl Mater Interfaces
October 2024
Antioxidant nanozymes are powerful tools to combat oxidative stress, which can be further improved by applying nanozyme mixtures of multiple enzymatic function. Here, cocktails of Prussian blue (PB) nanocubes and copper(II) exchanged ZSM-5 zeolites (CuZ) with enhanced reactive oxygen species (ROS) scavenging activity were developed. Surface functionalization of the particles was performed using polymers to obtain stable colloids, i.
View Article and Find Full Text PDFAz igen ritka felnőttkori nem hiatális, azaz nem paraoesophagealis típusú transdiaphragmaticus sérveket - a veleszületett rekeszizom defektusok mintájára - általánosan Bochdalek, ill. Larey-Morgagni-sérveknek nevezik. Etiológia tekintetében a nem diagnosztizált és kezelt veleszületett eredet, a traumás kontúziós-szakadásos, az iatrogen, ill.
View Article and Find Full Text PDFAchalasia cardiae miatt az első oesophago-cardia myotomiát több mint száz évvel ezelőtt Ernst Heller német sebész végezte. Az achalasiás betegek a mai napig ettől a beavatkozástól várják panaszaik megszűnését. Az achalasia napjainkban is chronikus, progresszív betegség, aminek oki kezelését nem ismerjük, a gyógyítására, a panaszok enyhítésére gyógyszeres (calcium csatorna blokkolók stb.
View Article and Find Full Text PDFThe industrially relevant reaction between nitriles and hydroxylamine yielding amidoximes was studied in different molecular solvents and in ionic liquids. In industry, this procedure is carried out on the ton scale in alcohol solutions and the above transformation produces a significant amount of unexpected amide by-product, depending on the nature of the nitrile, which can cause further analytical and purification issues. Although there were earlier attempts to propose mechanisms for this transformation, the real reaction pathway is still under discussion.
View Article and Find Full Text PDFThe adult necrotizing enterocolitis (ANEC) is a rare condition, frequently fatal, and characterized by a fulminant symptoms and segmental necrosis of the bowel. The authors performed repeated surgeries and small bowel resections on a patient classified to stage number three on Bell scale due to necrotizing enterocolitis. Pathological examination of the resected bowel showed intestinal necrosis without obstruction of mesenteric vessels.
View Article and Find Full Text PDFIntroduction: Two current types of laparoscopic inguinal hernia repair are known: the TransAbdominal PrePeritoneal (TAPP) and the Totally ExtraPeritoneal (TEP) method. The mesh is placed in the preperitoneal space (sublay). Usually during TAPP method we fix the mesh with tacks or staples.
View Article and Find Full Text PDFWe report a case of metastatic malignant melanoma in the oesophagus. 13 years after the wide excision of primary skin melanoma, we found a polypoid tumor in the upper third of the oesophagus. Biopsy result was melanoma malignum.
View Article and Find Full Text PDFFournier's gangrene is a rare, rapidly progressing necrotizing fasciitis, which involves the genital area and perineum, progresses towards the thighs and abdominal wall through fascial plains. In our surgical department we treated seven patients with Fournier's gangrene between 2007 and 2011. Early diagnosis, immediate radical surgical debridement, necrosectomy, appropriate antibiotics and intensive care are all required and necessary for the successful treatment.
View Article and Find Full Text PDFOur aim was to improve the outcome of emergency surgeries for colorectal cancer (CRC). Authors compared two periods: 2004-2006 and 2007-2011. Targeted cases were emergency admissions, in which the diagnosis of colorectal cancer is only revealed during work-up or during surgery.
View Article and Find Full Text PDFCase Report: The authors report a case of a 34-year-old woman who had postprandial abdominal pain for years. During the course of her examination lactose intolerance and hiatus hernia was diagnosed. After ineffective conservative treatment CT angiography (CTA) and digital substraction angiography (DSA) was performed and showed significant celiac artery stenosis.
View Article and Find Full Text PDFCase Report: Two young men were operated in our department for bronchiogen cysts with unusual locations. In the first case a mediastinal cyst caused severe swallowing problems, while in the second a retroperitoneal cyst resembled to an adrenal adenoma. It was only the postoperative histology, which clarified the exact diagnosis of the removed cysts.
View Article and Find Full Text PDFUnlabelled: Faecal incontinence and constipation cannot always be treated successfully by conservative or surgical methods. In these cases regular retrograde colonic enema can reduce the symptoms of the patients and can establish pseudocontinence. The authors present a method of colon cleaning which has been used successfully.
View Article and Find Full Text PDFIntroduction: The papilloma of the oesophagus is a rare disease. The pathogenesis and biological features of the disorder are not clearly known.
Aims: The purpose of the present paper is to outline the clinical and pathological significance of the papilloma of the oesophagus as detected in the authors' endoscopic laboratory.
Authors report a patient with a gastric carcinoma that developed an intramural metastasis to the oesophagus. The diagnosis of the metastasis was suggested on endoscopy and was verified by pathohistology. Preoperative investigations suggested advanced cancer.
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