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formaldehyde/nécrose

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Tubular necrosis complicating intravesical formaldehyde treatment.

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Intravesical formaldehyde instillation for the treatment of profuse hemorrhage due to inoperable bladder carcinoma has been done for the last three years. Results have been satisfactory. Recently, an anuria developed after such treatment in a 76-year-old patient. Renal biopsy showed focal tubular

Mitral Valve Necrosis After Cardiac Surgery Using Gelatin-Resorcinol-Formaldehyde Glue.

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We present a rare case of mitral regurgitation with anterior mitral leaflet perforation associated with gelatin-resorcinol-formaldehyde (GRF) glue. We performed mitral valve replacement for anterior mitral leaflet perforation occurred 7 years after aortic valve replacement and abscess cavity repair

Aortic root necrosis after surgical treatment using gelatin-resorcinol-formaldehyde (GRF) glue in patients with acute type A aortic dissection.

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BACKGROUND Although gelatin-resorcinol-formaldehyde (GRF) glue is used for surgical repair of acute type A aortic dissections, late complications possibly ascribed to toxic effects of GRF glue have been reported. We analyzed the benefits and risks of using GRF glue. METHODS Between January 1990 and

Maxillary bone necrosis following the use of formaldehyde containing paste: management and case series.

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Paraformaldehyde is used both as a disinfectant and to devitalise inflamed pulps when local anaesthesia is ineffective. Despite the clinical benefits, paraformaldehyde is not confined to the pulp, but penetrates the dentine and is gradually released as formaldehyde. This case series describes the

Eyelid skin necrosis with accidentally injected formaldehyde.

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[Effects of formaldehyde on germ cells of male mice].

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General toxicity and genetic materials damage of formaldehyde on germ cells in different stages was studied. In order to discover the toxicity mechanism of formaldehyde on germ cells and the biomarkers of effect after the presence of damage in germ cells and the estimation index, the relationships

Formaldehyde interferes with airway epithelium integrity and functions in a dose- and time-dependent manner.

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Formaldehyde (HCHO) is a common indoor air pollutant. To assess its potential role and mechanism of action in asthma, we exposed the bronchial epithelial cell lines Calu-3 and 16HBE to HCHO (70-7000 μM) according to two exposure schedules (30 min and 24 h), before measuring cell viability, necrosis

Assessment of immunotoxicity and genotoxicity in workers exposed to low concentrations of formaldehyde.

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Formaldehyde (FA), which is an important chemical with a wide commercial use, has been classified as carcinogenic to humans by International Research on Cancer (IARC). The genotoxic and carcinogenic potential of FA has been documented in mammalian cells and in rodents. A recent evaluation by the

Formaldehyde application for haemorrhagic radiation-induced proctitis: a clinical and histological study.

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OBJECTIVE Haemorrhagic radiation-induced proctitis is a serious complication of radiotherapy of pelvic organs. In severe cases, massive haemorrhage may necessitate hospitalization and repeated transfusions. Application of formaldehyde under direct vision is one of the most efficient treatments. The

Two-year drinking-water study of formaldehyde in rats.

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Formaldehyde was administered in the drinking-water to groups of 70 male and 70 female Wistar rats for up to 24 months. Survivors of subgroups of ten rats/sex/group each were killed after 12 or 18 months. The mean formaldehyde doses administered were 0, 1.2, 15 or 82 mg/kg body weight/day for males,

A critical study on the preparation and application of gelatin-resorcinol tissue adhesive crosslinked by formaldehyde.

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A tissue adhesive composed of gelatin-resorcinol-formaldehyde was prepared. The factors, influencing its properties were discussed and compared with other preparation methods. Incised rat skin wounds were unified with adhesive applied between the wound edges or on the wound surface. Sutured skin

[Effect of formaldehyde exposure on the level of cytokines in human bronchial epitheial 16HBE cells].

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OBJECTIVE To investigate the effect of formaldehyde exposure on the expression of inflammatory cytokines in human bronchial epithelial cells (16HBE cells). METHODS 16HBE cells were treated with formaldehyde with a concentration of 0, 0.04, 0.08, 0.16, 0.32, or 0.64 mmol/L for 24 hours, and MTT assay

Immunocytochemical localisation of tumor necrosis factor alpha in thyroid tissues from patients with neoplastic or autoimmune thyroid disorders.

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It is disputed to what extent tumor necrosis factor-alpha is present in the thyroid follicular epithelial cells and/or in the interstitial cells in different disorders of the thyroid gland. We describe the immunohistochemical detection of tumor necrosis factor-alpha using formaldehyde fixed and

Bilateral putaminal necrosis and bronopol toxicity.

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Among alcohols, methanol intoxication is the most frequently associated with cerebral toxicity, causing retinal damage and putaminal necrosis. This consequence is believed to be due to the transformation of methanol into formic acid. We describe the case of a patient who presented with acute

The principal tumor necrosis factor receptor in monocyte cytotoxicity is on the effector cell, not on the target cell.

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Several tumor target cell lines, prototypically K562 cells, are resistant to lysis by recombinant tumor necrosis factor (TNF alpha) but are killed by monocytes expressing membrane-associated TNF, suggesting that membrane TNF could account for monocyte-mediated cytotoxicity. Formaldehyde-fixed
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