ethylene oxide/atrophy

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Ethylene oxide induces central-peripheral distal axonal degeneration of the lumbar primary neurones in rats.

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Wistar rats subjected to a single exposure lasting six hours to ethylene oxide (EO) at a concentration of 500 parts per million three times a week for 13 weeks developed ataxia in the hindlegs. Myelinated fibres in hindleg nerves and in the fasciculus gracilis showed axonal degeneration sparing the

[Evaluation of testicular damage by flow cytometry: testicular atrophy caused by ethylene oxide].

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The new method using flow cytometry was applied to analyse the testicular toxicity of ethylene oxide, and the usefulness of this method is discussed. When Wistar male rats were exposed to ethylene oxide for six hours a day, three times a week for six weeks, the testicular weights of the exposed

Testicular atrophy from inhalation of ethylene oxide cyclic tetramer.

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Toxicity potential of absorbed-retained ethylene oxide residues in culture dishes on embryo development in vitro.

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Four hundred eight-cell mouse embryos were cultured in vitro in either polystyrene (plastic) dishes (Exp. 1) or watch glasses (Exp. 2) to analyze the toxicity potential of absorbed-retained ethylene oxide (EtO). Culture dishes were gas-sterilized with Anprolene equipment and allowed to aerate (21 C)

[Effect of sterilisation with formaldehyde, gamma irradiation and ethylene oxide on the properties of polyethylene joint replacement components].

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OBJECTIVE Each method of sterilisation has some effect on the structure and properties of UHMWPE and thus also on joint replacement longevity. This study was designed to compare, using objective methods of measurement, several kinds of sterilisation and to recommend the one which has the best

Carcinogenic and toxicologic effects of inhaled ethylene oxide and propylene oxide in F344 rats.

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The chronic inhalation toxicity and carcinogenicity of ethylene oxide (EO) and propylene oxide (PO) were evaluated in a 2-year inhalation bioassay. Five groups of male weanling Fischer 344 rats, 80 per group, were exposed at 0 ppm (shared control; filtered air), 50 ppm EO, 100 ppm EO, 100 ppm PO, or

Study of Salt Precipitation in Polymer Electrolytes Based on Poly(ethylene oxide) and EMImTf Ionic Liquid.

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In solidlike polymer electrolytes, salt precipitation (SP) followed by the occurrence of neutral ion pairs in polymer electrolytes is known to deteriorate ionic conductivity, but has not been the subject of intense study so far. Here, the mechanism of SP is studied for a polymer electrolyte

Ethylene oxide polyneuropathy: clinical follow-up study with morphometric and electron microscopic findings in a sural nerve biopsy.

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A case is reported of ethylene oxide polyneuropathy after 5 months of exposure. There was symmetrical distal weakness of both lower extremities and transitory reduced nerve conduction velocities with increased latencies. Sural nerve biopsy revealed nerve fibre degeneration of the Wallerian type,

Rapid axonal transport velocity is reduced in experimental ethylene oxide neuropathy.

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Chronic exposure of rats to ethylene oxide (EO) causes distal axonal neuropathy of lumbosacral primary sensory neurons. To study the pathogenesis of this neuropathy, we measured rapid axonal transport in peripheral nerves. Rats were exposed for 6 h to 500 ppm EO in a chamber three times a wk for 15

Ethylene oxide neurotoxicity: a cluster of 12 nurses with peripheral and central nervous system toxicity.

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Ethylene oxide (EO) is commonly used to sterilize heat-sensitive products used by hospital patients and personnel. Ethylene chlorohydrin (EC), a by-product, is considered highly toxic. We report a cluster of 12 operating-room nurses and technicians who developed symptoms after a 5-month exposure to

Toxic effects of ethylene oxide residues on bovine embryos in vitro.

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The potential of ethylene oxide (EtO) residues in exposed plastic tissue culture dishes to adversely affect bovine oocyte maturation, fertilization and subsequent embryonic development was monitored. In experiment 1, the effects of aeration time and aeration combined with washing of EtO-gassed

[Effects of sexual difference on the toxicity of ethylene oxide. I. Polyneuropathy].

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Male and female Wistar rats were exposed to ethylene oxide (EO) at a concentration of 250 ppm, 6 hours a day, 5 days a week for 17 weeks simultaneously, and the sexual difference in susceptibility of the peripheral nerve to EO was investigated. Both male and female rats of the exposed group showed

Ethylene oxide neuropathy in rats. Exposure to 250 ppm.

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In Wistar rats subjected to a 6-h exposure to ethylene oxide at the concentration of 250 parts per million once, 5 times a week for 9 months, histopathologic studies of myelinated fibers of the proximal sural, distal sural and peroneal nerves and of the fasciculus gracilis at the 5th thoracic and

[Abnormalities of axonal transport as pathogenesis of axonal degeneration in peripheral neuropathy].

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Axonal transport is a universal property of nerve cells. Role of axonal transport abnormalities in the pathogenesis of peripheral neuropathies was discussed. Applications of isotope-labeling technique to the study of axonal transport in experimental neuropathy have provided insights into the

Testicular toxicity and alterations of glutathione metabolism resulting from chronic inhalation of ethylene oxide in rats.

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Wistar male rats were exposed to ethylene oxide (EtO) at a concentration of 500 ppm, 6 hr a day, 3 days a week, for 2, 4, 6, or 13 weeks. Testicular toxicity and changes in glutathione metabolism in the testis were investigated. The relative weights of the testes and the epididymes of the

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