Results 131 to 140 of about 8,005 (185)
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n-Hexane induces Parkinsonism in rodents
Brain Research, 1990A case of human parkinsonism, due to n-hexane exposure, was recently described. On the basis of this observation, we treated mice and rats with n-hexane and its principle toxic metabolite 2,5-hexanedione. The mice underwent a chronic treatment intraperitoneum, the rats were treated stereotaxically into the substantia nigra.
G, Pezzoli +4 more
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Effect of methanol on the biofiltration of n-hexane
Journal of Hazardous Materials, 2012This study investigated the removal of recalcitrant compounds in the presence of a hydrophilic compound. n-Hexane is used as a model compound to represent hydrophobic compounds. Methanol has been introduced in mixture with n-hexane in order to increase the bioavailability of n-hexane in trickle-bed-air-biofilters (TBABs). The mixing ratios investigated
Abderrahman, Zehraoui +2 more
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n‐Hexane‐induced parkinsonism: Pathogenetic hypotheses
Movement Disorders, 1995Abstractn‐Hexane, similar hydrocarbons, and derivatives are common environmental pollutants and by‐products of lipid peroxidation, and they may have a nigrotoxic effect like that of 1‐methyl‐4‐phenyl‐1, 2, 3, 6‐tetrahydropyridine. This report describes our second case of parkinsonism in a subject exposed to n‐hexane.
Pezzoli G +8 more
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Poor metabolization of n-hexane in Parkinson's disease
Journal of Neurology, 2003Although genomic screening studies have identified several genes associated with Parkinson's disease (PD), there is evidence that environmental factors are also involved in the pathogenesis of the disease and that hydrocarbon-solvents may be one of them. The genetic component is less evident in late-onset PD. To assess whether age and PD may affect the
M. Canesi +6 more
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New England Journal of Medicine, 1971
Abstract In three adult cabinet finishers weakness and sensory loss developed as a result of prolonged and intense exposure to an industrial solvent. After leaving this employment, they improved. Analysis of the immediate environment and solvent revealed that each worker had an oral, respiratory and dermal contact with toxic levels of n-hexane ...
A, Herskowitz, N, Ishii, H, Schaumburg
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Abstract In three adult cabinet finishers weakness and sensory loss developed as a result of prolonged and intense exposure to an industrial solvent. After leaving this employment, they improved. Analysis of the immediate environment and solvent revealed that each worker had an oral, respiratory and dermal contact with toxic levels of n-hexane ...
A, Herskowitz, N, Ishii, H, Schaumburg
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n-Hexane Polyneuropathy in Japan: A Review of n-Hexane Poisoning and Its Preventive Measures
Environmental Research, 1993n-Hexane is used in industry as a solvent for adhesive, dry cleaning, and vegetable oil extraction. In 1963, the first case of severe polyneuropathy suspected to be caused by n-hexane was referred to us. Case studies, animal experiments, and field surveys on n-hexane poisoning were conducted, and preventive measures like threshold limit value revision ...
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Avalanche breakdown in n-hexane
Journal of Physics D: Applied Physics, 1979Time lags to breakdown in n-hexane have been measured in high over-voltages, using approximately 100 ns width rectangular pulses. At a constant field, the time lags are divided into two types, N and B, at a 'critical distance' d. Above dc, Laue plots have almost similar kinked-line characteristics; below dc, a straight line is obtained.
K Arii, S Kitani, M Kawamura
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Particles and pulses in n-hexane
Journal of Electrostatics, 1979Abstract By experimental observation the persistent controversy about the order of charge carried by minute natural particles in a liquid dielectric is resolved. The work reported earlier has been extended, by use of the on-line transient recorder in a dual channel mode, to provide a clear demonstration that the fempto-Coulomb pulses of conduction ...
C.J. Buffam, J.E. Brignell
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The photochemical sulphoxidation of n-hexane
Tetrahedron, 1965Abstract The photochemical sulphoxidation of n-hexane in the presence of acetic anhydride giving hexanesulphonic acid has been examined. A maximum yield of 26% is obtained when the sulphoxidation is carried out with a molar ratio of n-hexane:acetic anhydride of 19:1. An increase in the reaction temperature of 28° serves to increase the yield, and for
Y. Ogata, Y. Izawa, T. Tsuda
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Aromatization of n-hexane by platinum-containing molecular sieves II. n-Hexane reactivity
Journal of Catalysis, 1992Abstract Pt/KL, Pt/BaKL, Pt/KBaKL, Pt/NaY, Pt/CsNaY, Pt/NaFAU(C), Pt/hex, Pt/SSZ-24, Pt/silica, and Pt/carbon were tested as catalysts for the aromatization of n-hexane at 460–510°C and atmospheric total pressure in order to study the influence of Pt cluster size and support acidity/basicity, microstructure, and chemical composition on activity and ...
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