Results 141 to 150 of about 754 (163)

Mechanism of the hydroxyl radical oxidation of methacryloyl peroxynitrate (MPAN) and its pathway toward secondary organic aerosol formation in the atmosphere [PDF]

Physical Chemistry Chemical Physics, 2015
Methacryloyl peroxynitrate (MPAN), the acyl peroxynitrate of methacrolein, has been suggested to be an important secondary organic aerosol (SOA) precursor from isoprene oxidation.
Tran B Nguyen, Kelvin H Bates, John D Crounse   +2 more
exaly   +2 more sources

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Retinal and optic nerve abnormalities in neurodegeneration associated with mutations in C19orf12 (MPAN)

Journal of the Neurological Sciences, 2016
Mitochondrial membrane protein-associated neurodegeneration (MPAN) is an neurodegeneration with brain iron accumulation (NBIA) subtype with mutation of C19orf12. Optic atrophy is one of the core symptoms in almost all MPAN cases, but the detailed ophthalmologic features of MPAN patients have not yet been described.All consecutive symptomatic, gene ...
Ewa Langwińska-Wośko, Marta Skowrońska, Tomasz Kmiec   +2 more
exaly   +3 more sources

Challenges in the approach and reporting of atypical manifestations of membrane protein-associated neurodegeneration (MPAN): An editorial [PDF]

Parkinsonism and Related Disorders, 2021
exaly   +3 more sources

A method for the airborne measurement of PAN, PPN, and MPAN

Journal of Geophysical Research: Atmospheres, 2000
An aircraft‐based instrument for the measurement of peroxyacetic nitric anhydride (PAN) and related compounds peroxypropionic nitric anhydride (PPN), and peroxymethacrylic nitric anhydride (MPAN) is described. The instrument functions by direct injection of a small sample (2 ambient cm2) into a wide bore fused silica capillary gas chromatographic ...
Williams, J., Roberts, J., Bertman, S., Stroud, C., Fehsenfeld, F., Baumann, K., Buhr, M., Knapp, K., Murphy, P., Nowick, M., Williams, E.   +10 more
openaire   +2 more sources

The reaction of ozone with MPAN, CH2=C(CH3)C(O)OONO2

Environmental Science & Technology, 1993
The reaction of ozone with the unsaturated peroryacyl nitrate MPAN, CH 2 =C(CH 3 )C(O)OONO 2 , has been studied at ppb levels of MPAN and ozone in the dark and with sufficient cyclohexane added to scavenge the hydroryl radical. The ozone-MPAN reaction rate constant at ambient temperature (291-297 K) and atmospheric pressure is (8.2±2.0)×10 -18 cm 3 ...
Daniel Grosjean, Eric Grosjean, Edwin L Williams   +2 more
exaly   +2 more sources

A novel C19orf12 frameshift mutation in a MPAN pedigree impairs mitochondrial function and connectivity leading to neurodegeneration

Parkinsonism & Related Disorders, 2023
Mitochondrial membrane protein‒associated neurodegeneration (MPAN) is a rare genetic disease characterized by progressive neurodegeneration with brain iron accumulations combined with neuronal α-synuclein and tau aggregations. Mutations in C19orf12 have been associated with both autosomal recessive and autosomal dominant inheritance patterns of MPAN.We
Huan-Yun Chen, Han-I Lin, Chia-Lang Hsu, Pei-Lung Chen, Cheng-Yen Huang, Shu-Chun Teng, Chin-Hsien Lin   +6 more
openaire   +2 more sources

Kinetic investigation of the reaction between the NO3 radical and peroxymethacrylic nitric anhydride (MPAN)

Physical Chemistry Chemical Physics, 1999
The gas-phase reaction between the NO3 radical and peroxymethacrylic nitric anhydride (MPAN: (CH22C(CH3)C(O)O2NO2) has been studied by a relative-rate method at atmospheric pressure. A value of (1.45±0.45)×10-16 c molecule-1 s-1 was obtained for the rate constant.
Martin D KING, D E Shallcross, R P Wayne
exaly   +2 more sources

The thermal decomposition of peroxyacetic nitric anhydride (PAN) and peroxymethacrylic nitric anhydride (MPAN)

International Journal of Chemical Kinetics, 1992
AbstractThe rate coefficients of thermal decomposition of peroxyacetic nitric anhydride (PAN) and peroxymethacrylic nitric anhydride (MPAN) were measured over the temperature range 302–323 K. The resulting Arrhenius expressions were k = 1017.4±0.4 exp(−28.5 ± 0.5/RT) for PAN, and k = 1016.2±0.7 exp(−26.8 ± 1.0/RT) for MPAN, where the activation energy ...
James M Roberts
exaly   +2 more sources

Mitochondrial Membrane Protein Associated Neurodegeneration   (MPAN) with a Novel C19orf12 Mutation in the First Decade of Life

The Indian Journal of Pediatrics, 2019
Mitochondrial membrane protein associated neurodegeneration (MPAN) belongs to the Neuronal brain iron accumulation (NBIA) spectrum disorder. It is caused by mutation in the C19orf12 gene. A 13-y-old previously healthy girl born to non-consanguineous marriage couple presented with regression of motor and cognitive milestones and decreased vision in both
Vykuntaraju K. Gowda, Arundhati Patil, Varunvenkat M. Srinivasan, Nihar Kathrani   +3 more
openaire   +2 more sources

C19orf12 gene variants causing mitochondrial membrane protein-associated neurodegeneration (MPAN)

European Journal of Human Genetics
Mitochondrial membrane protein-associated neurodegeneration (MPAN) is a rare neurodegenerative disorder characterized by spastic paraplegia, parkinsonism and psychiatric and/or behavioral symptoms caused by variants in gene encoding chromosome-19 open reading frame-12 (C19orf12).
Riyanka Kumari, Vikram V. Holla, Neeharika Sriram, Nitish Kamble, Ajay Asranna, Jitender Saini, Gautham Arunachal, Ravi Yadav, Akhilesh Pandey, Pramod Kumar Pal, Babylakshmi Muthusamy   +10 more
openaire   +2 more sources