scholarly journals Selective enhancement of the QCD axion couplings

2021 ◽  
Vol 103 (1) ◽  
Author(s):  
Luc Darmé ◽  
Luca Di Luzio ◽  
Maurizio Giannotti ◽  
Enrico Nardi
Keyword(s):  
Selective Enhancement

scholarly journals Selective Enhancement of Electrochemical Signal Based on the Size of Alcohols Using Nanoporous Platinum

2021 ◽  
Author(s):  
Jae Jin Bang ◽  
Donghoon Han ◽  
Jinsik Shin ◽  
Taek Dong Chung ◽  
Je Hyun Bae
Keyword(s):  
Electrochemical Signal ◽  
Selective Enhancement ◽  
Nanoporous Platinum

Glutathione S-Transferase Activity in Nontreated and CGA-154281- Treated Maize Shoots

1991 ◽  
Vol 46 (9-10) ◽  
pp. 850-855 ◽  
Author(s):  
John V. Dean ◽  
John W. Gronwald ◽  
Michael P. Anderson
Keyword(s):  
Liquid Chromatography ◽  
Anion Exchange ◽  
Cinnamic Acid ◽  
Fast Protein Liquid Chromatography ◽  
Transferase Activity ◽  
Glutathione S Transferase ◽  
Selective Enhancement

Abstract Fast protein liquid chromatography (anion exchange) was used to separate glutathione S-transferase isozymes in nontreated etiolated maize shoots and those treated with the herbi­cide safener CGA -1542814-(dichloroacetyl)-3,4-dihydro-3-methyl-2 H-1 ,4-benzoxazine. Non­treated shoots contained isozymes active with the following substrates: trans-cinnamic acid (1 isozyme), atrazine (3 isozymes), 1-chloro-2,4-dinitrobenzene (1 isozyme), metolachlor (2 isozymes) and the sulfoxide derivative of S-ethyl dipropylcarbamothioate (2 isozymes). Pre­treatment of shoots with the safener CGA -154281 (1 μM) had no effect on the activity of the isozymes selective for trans-cinnamic acid and atrazine but increased the activity of the constitutively-expressed isozymes that exhibit activity with 1-chloro-2,4-dinitrobenzene, metola­chlor and the sulfoxide derivative of S-ethyl dipropylcarbamothioate. The safener pretreat­ment also caused the appearance of one new isozyme active with 1-chloro-2,4-dinitrobenzene and one new isozyme active with metolachlor. The results illustrate the complexity of gluta­thione S-transferase activity in etiolated maize shoots, and the selective enhancement of gluta­thione S-transferase isozymes by the safener CGA -154281.

Enhanced mtDNA repair capacity protects pulmonary artery endothelial cells from oxidant-mediated death

2002 ◽  
Vol 283 (1) ◽  
pp. L205-L210 ◽  
Author(s):  
Allison W. Dobson ◽  
Valentina Grishko ◽  
Susan P. LeDoux ◽  
Mark R. Kelley ◽  
Glenn L. Wilson ◽  
...  
Keyword(s):  
Endothelial Cells ◽  
Cell Death ◽  
Dna Repair ◽  
Trypan Blue Exclusion ◽  
Mt Dna ◽  
Repair Capacity ◽  
Mtdna Damage ◽  
Pulmonary Arterial ◽  
Selective Enhancement ◽  
The Impact

In rat cultured pulmonary arterial (PA), microvascular, and venous endothelial cells (ECs), the rate of mitochondrial (mt) DNA repair is predictive of the severity of xanthine oxidase (XO)-induced mtDNA damage and the sensitivity to XO-mediated cell death. To examine the importance of mtDNA damage and repair more directly, we determined the impact of mitochondrial overexpression of the DNA repair enzyme, Ogg1, on XO-induced mtDNA damage and cell death in PAECs. PAECs were transiently transfected with an Ogg1-mitochondrial targeting sequence construct. Mitochondria-selective overexpression of the transgene product was confirmed microscopically by the observation that immunoreactive Ogg1 colocalized with a mitochondria-specific tracer and, with an oligonucleotide cleavage assay, by a selective enhancement of mitochondrial Ogg1 activity. Overexpression of Ogg1 protected against both XO-induced mtDNA damage, determined by quantitative Southern analysis, and cell death as assessed by trypan blue exclusion and MTS assays. These findings show that mtDNA damage is a direct cause of cell death in XO-treated PAECs.

Selective enhancement of different electron populations by electron-positron attraction: application to zinc

1987 ◽  
Vol 17 (6) ◽  
pp. 1365-1378 ◽  
Author(s):  
S Daniuk ◽  
G Kontrym-Sznajd ◽  
A Rubaszek ◽  
H Stachowiak ◽  
J Mayers ◽  
...  
Keyword(s):  
Electron Positron ◽  
Selective Enhancement
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