cellulose/necrosis

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Patterns of structural change in DNA during tissue necrosis indicated by benzoylated DEAE-cellulose chromatography.

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Structural change in liver DNA, isolated following administration of a necrogenic dose of carbon tetrachloride to rats, was examined by benzoylated DEAE-cellulose (BD-cellulose) chromatography. Greatest increase in the amount of DNA exhibiting single stranded character was detected 48 h after

Relationship between tumor necrosis factor-α release and granulocyte and monocyte adsorption to cellulose acetate beads.

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Tumor necrosis factor-α, (TNF)-α, a proinflammatory cytokine, is produced by activated granulocytes and monocytes (GMs) and implicated as a major factor in inflammatory bowel disease (IBD) pathogenesis. Reduction of TNF-α should improve IBD pathology. GM adsorptive apheresis (GMA) is an effective

Cellulose acetate beads induce release of interleukin-1 receptor antagonist, but not tumour necrosis factor-alpha or interleukin-1beta in human peripheral blood.

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OBJECTIVE Dramatic improvements in clinical symptoms of rheumatoid arthritis and ulcerative colitis were observed after patients received granulocyte and monocyte adsorptive apheresis with a column containing cellulose acetate (CA) beads as adsorptive carriers. This study was to investigate the

Cloning and characterization of a cDNA encoding an elicitor of Phytophthora parasitica var. nicotianae that shows cellulose-binding and lectin-like activities.

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Phytophthora parasitica var. nicotianae produces a 34-kDa glycoprotein elicitor (CBEL) that is localized in the cell wall. A cDNA encoding the protein moiety of this elicitor was cloned and characterized. The deduced amino acid sequence consisted of two direct repeats of a cysteine-rich domain,

Pulmonary and intraperitoneal inflammation induced by cellulose fibres.

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The inflammatory effects of respirable cellulose fibres were studied in two short-term animal models: intraperitoneal injection in mice, and inhalation in rats. The mouse peritoneal cavity is particularly sensitive to fibrous compared to non-fibrous particles. Both cellulose fibres and the positive

Genotoxic and inflammatory effects of nanofibrillated cellulose in murine lungs.

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Nanofibrillated cellulose (NFC) is a sustainable and renewable nanomaterial, with diverse potential applications in the paper and medical industries. As NFC consists of long fibres of high aspect ratio, we examined here whether TEMPO-(2,2,6,6-tetramethyl-piperidin-1-oxyl) oxidised NFC (length

Histological and immunohistochemical studies on the preparation of leukocyte-poor red cell concentrates by filtration: the filtration process on cellulose acetate fibers.

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A histological and immunohistochemical investigation of slices from the Cellselect leukocyte filter showed that the capture of lymphocytes within these filters depended on trapping of the cells in the cellulose acetate fiber network more than on adherence. Probably, additional mechanisms played a

Effect of oxidized cellulose on human respiratory mucosa and submucosa and its implications for endoscopic skull-base approaches.

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Regenerated oxidized cellulose (ROC) sheets have gained popularity as an adjunct to a vascularized nasoseptal flap for closure of dural defects after endoscopic endonasal skull-base approaches (EESBS). However, evidence supporting its impact on the healing process is uncertain. This

Anti-human immunodeficiency virus type 1 microbicide cellulose acetate 1,2-benzenedicarboxylate in a human in vitro model of vaginal inflammation.

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The sexual transmission of human immunodeficiency virus type 1 (HIV-1) is facilitated by inflammation and related epithelial barrier perturbation. Microbicides for vaginal applications are currently being developed to reduce the risk of HIV-1 transmission. However, little is known about their

The fixation effect of a silk fibroin-bacterial cellulose composite plate in segmental defects of the zygomatic arch: an experimental study.

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OBJECTIVE Bioresorbable fixation systems have been popular for the treatment of facial fractures. However, their mechanical properties are uncertain and complications have been reported. To overcome these problems, we developed a bioresorbable fixation plate using a composite of silk fibroin and

Influence of hydrogencalcium salts of oxidized cellulose on MMP-2, MMP-9 and TNF-α production and wound healing in non-healing wounds.

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Levels of matrix metalloproteinase-2 (MMP-2), matrix metalloproteinase-9 (MMP-9) and tumor necrosis factor-α (TNF-α) may influence wound healing and wound closure in non-healing wounds. The aim of the study was to test the hypothesis that hydrogencalcium salts of oxidized cellulose change the

Modulatory effect of Acetobacter xylinum cellulose on peritoneal macrophages.

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BACKGROUND The present work aimed to assess the effect of bacterial cellulose (BC) from Acetobacter xylinum on some functions of peritoneal macrophages. METHODS Mice peritoneal macrophages were lavaged and co-cultured with various concentrations of BC in microtiter plate. Viability of macrophages

Use of oxidized cellulose hemostats (Surgicel™) to support parenchymal closure and achieve hemostasis following partial nephrectomy.

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Elective nephron-sparing surgery (NSS) for renal cell carcinoma (RCC) has gained general acceptance as an alternative to radical nephrectomy. To achieve hemostasis without risk of local ischemia and necrosis of kidney parenchyma after standard hemostatic suturing, we investigated oxidized cellulose

[The volatile fatty acids indicators in the differential diagnosis of purulent complications of pancreatic necrosis.]

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The purpose of the study was to evaluate the informative value of volatile fatty acid (VFA) indicators for the differential diagnosis of infected pancreatic necrosis (IPN), complicated by retroperitoneal cellulose phlegmons and IPN, complicated by pancreatic abscesses. The work is based on the

Comparison of the hemostatic effects of oxidized cellulose and calcium alginate in an experimental animal model of hepatic parenchymal bleeding.

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BACKGROUND Despite all recent developments, bleeding is still one of the main causes of increasing morbidity and mortality following both trauma and elective hepatic surgery. The main goal of treatment is stop the bleeding immediately. In this study, the hemostatic and histopathological effects of

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