نتایج جستجو برای: paraquat dichloride

تعداد نتایج: 5267  

2006
Andreas Schmidt Thorsten Mordhorst

2,4-Dichloro-, 4,6-dichloro-, 2,4,6-trichloroand tetrachloropyrimidine undergo nucleophilic displacements by 4-(dimethylamino)pyridine to give (pyrimidine-2,4-diyl)-1,1’-bis[4-(dimethylamino)pyridinium] dichloride, (pyrimidine-4,6-diyl)-1,1’-bis[4-(dimethylamino)-pyridinium] dichloride, (pyrimidine-2,4,6-triyl)-1,1’,1”-tris[4-(dimethylamino)pyridinium] trichloride, and (5chloropyrimidine-2,4,6-...

2014
Jing An Xuefeng Shen Qibin Ma Cunyi Yang Simin Liu Yong Chen

BACKGROUND Goosegrass (Eleusine indica L.), a serious annual weed in the world, has evolved resistance to several herbicides including paraquat, a non-selective herbicide. The mechanism of paraquat resistance in weeds is only partially understood. To further study the molecular mechanism underlying paraquat resistance in goosegrass, we performed transcriptome analysis of susceptible and resista...

Journal: :The Journal of biological chemistry 2010
Michihiro Shibata Fumihiko Hakuno Daisuke Yamanaka Hiroshi Okajima Toshiaki Fukushima Takashi Hasegawa Tomomi Ogata Yuka Toyoshima Kazuhiro Chida Kumi Kimura Hideyuki Sakoda Asako Takenaka Tomoichiro Asano Shin-Ichiro Takahashi

Accumulated evidence indicates that oxidative stress causes and/or promotes insulin resistance; however, the mechanism by which this occurs is not fully understood. This study was undertaken to elucidate the molecular mechanism by which oxidative stress induced by paraquat impairs insulin-dependent glucose uptake in 3T3-L1 adipocytes. We confirmed that paraquat-induced oxidative stress decrease...

2012
Yunying Shi Yangjuan Bai Yuangao Zou Bei Cai Fei Liu Ping Fu Lanlan Wang

OBJECTIVE This study was aimed to analyze the scavenging effect of haemoperfusion on plasma paraquat (PQ) and to evaluate the clinical significance of PQ examination in the treatment of patients with acute paraquat poisoning. METHODS 85 patients with acute paraquat intoxication by oral ingestion were admitted in West China Hospital from Jun, 2010 to Mar, 2011. A standardized therapeutic regim...

Pre-harvest desiccation of rapeseed crop may allow a more timely harvest as well as increase the speed and harvest operation efficiency as a second crop after rice. An effective desiccant which could be used as a harvest-aid with no negative effects on rapeseed yield and quality would be advantageous for oil seed crop producers and may reduce yield losses with no interferential effects on rice ...

Journal: :Chemical communications 2011
Scott C Dorman Richard A O'Brien Adam T Lewis E Alan Salter Andrzej Wierzbicki Paul W Hixon Richard E Sykora Arsalan Mirjafari James H Davis

A boronium-based paraquat analog undergoes reductions at more negative potentials than paraquat itself, making it a promising building block for electroactive materials.

2013
Mohamed M. Shoukry Safaa S. Hassan

The interaction of 3,3-bis(1-methylimidazol-2-yl)propionate (BIMP) with dimethyltin(IV) dichloride (DMT), dibutyltin(IV) dichloride (DBT), and diphenyltin(IV) dichloride (DPT) is investigated at 25°C and 0.1 M ionic strength in water for dimethyltin(IV), and in a 50% dioxane-water mixture for dibutyltin(IV) and diphenyltin(IV). The stepwise formation constants of the 1 : 1 and 1 : 2 complexes f...

Journal: :Journal of the American Chemical Society 2011
Frederic Poineau Christos D Malliakas Philippe F Weck Brian L Scott Erik V Johnstone Paul M Forster Eunja Kim Mercouri G Kanatzidis Kenneth R Czerwinski Alfred P Sattelberger

Technetium dichloride has been discovered. It was synthesized from the elements and characterized by several physical techniques, including single crystal X-ray diffraction. In the solid state, technetium dichloride exhibits a new structure type consisting of infinite chains of face sharing [Tc(2)Cl(8)] rectangular prisms that are packed in a commensurate supercell. The metal-metal separation i...

2013
M. Banaee M.H. Davoodi F. Zoheiri

Paraquat is a contact and non-selective herbicide which is used for controlling a wide range of terrestrial weeds and aquatic plants. A long-term contact with this xenobiotic can potentially lead to injuries in fishes as live non-target organisms. Therefore, the current study aimed to investigate the effect of sub-lethal toxicity of paraquat on the pathology of gill, liver, and spleen tissues i...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2005
Jason R Richardson Yu Quan Todd B Sherer J Timothy Greenamyre Gary W Miller

Paraquat, MPTP, and rotenone reproduce features of Parkinson's disease (PD) in experimental animals. The exact mechanisms by which these compounds damage the dopamine system are not firmly established, but selective damage to dopamine neurons and inhibition of complex I are thought to be involved. We and others have previously documented that the toxic metabolite of MPTP, MPP+, is transported i...

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