نتایج جستجو برای: Paraquat (PQ)

تعداد نتایج: 6343  

اسرافیلی, علی, جنیدی جعفری, احمد, فرزادکیا, مهدی, میرزایی, سحر,

Background and purpose: Paraquat (PQ) is a bipyridinium herbicide that is very soluble in water. This non-selective contact herbicide is widely used in agriculture for weed control. In addition to the environmental impact, paraquat affects the entire body, especially the respiratory system, central nervous system and lymph nodes. In this study degradation of paraquat was investigated using Fent...

Objective Background and Objectives: Paraquat (PQ) is a herbicide and is genotoxic and cytotoxic poison for male germ cells. Therefore, in this study, the protective role of Crocin (Cr) against the destructive effects of Paraquat on sperm quality and in-vitro fertilization results Paraquat was investigated. MaterialsAndMethods Materials and Methods: Twenty-eight male mice (20-25g) were used in ...

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...

2011
Shulin Liu Kan Liu Qiang Sun Wenwu Liu Weigang Xu Petar Denoble Hengyi Tao Xuejun Sun

Exposure to paraquat leads to acute lung injury and oxidative stress is widely accepted as a contributor to paraquat-induced acute lung injury. Recent studies have reported that consumption of water with dissolved molecular hydrogen to a saturated level (hydrogen water) prevents oxidative stress-induced diseases. Here, we investigated whether consumption of saturated hydrogen saline protects ra...

2017
P. Proença J. Vidinha H. Teixeira F. Castanheira M. C. Mendonça E. Sousa C. Mustra J. Franco F. Corte-Real D. N. Vieira

Paraquat (PQ) is a toxic quaternary ammonium compound widely used in agriculture. numerous cases of paraquat intoxication have been reported either accidentally or intentionally as suicidal attempts. A method for the determination of the herbicide PQ in blood and urine samples was developed using liquid chromatography-(electrospray ionization) mass spectrometry (LcesI-ms), following extraction ...

2013
Yin-song Jiang Yu-ying Ma Zhan-qing Wang Guang-jun Li

BACKGROUND The plasma concentration of paraquat is closely related to the prognosis of patients with paraquat toxication, and the most common cause of death from paraquat poisoning is multiple organ failure (MOF). This study aimed to evaluate therapeutic effect of smecta on the plasma concentrations of paraquat and multi-organ injury induced by paraquat intoxication in rats. METHODS A total o...

2017
Xiao-Wei Liu Tao Ma Lu-Lu Li Bo Qu Zhi Liu

The present study investigated the predictive values of urine paraquat (PQ) concentration, dose of poison, arterial blood lactate and Acute Physiology and Chronic Health Evaluation (APACHE) II score in the prognosis of patients with acute PQ poisoning. A total of 194 patients with acute PQ poisoning, hospitalized between April 2012 and January 2014 at the First Affiliated Hospital of P.R. China...

2010
T. J. S. Merritt L. Douglas T. Z. Rzezniczak J. H. Watterson

We present a method for the rapid and accurate quantitative analysis of paraquat (PQ) in biological samples. Paraquat, also known as methyl viologen, is commonly used to induce oxidative stress in laboratory studies. Our method uses classical standard addition methodology and ultra-high performance liquid chromatography (UPLC) with photodiode array detection to estimate recovered PQ in whole-or...

Aysa Rezabakhsh Fatemeh Rahmani, Hassan Malekinejad, Mazdak Razi

Paraquat is a commonly used herbicide in many countries which can lead to systematic poisoning on exposure, In this study, paraquat (PQ)-induced changes in the expression of Cyclooxygenase-2 (COX-2) along with biochemical and histopathological changes in the lungs, liver and kidneys were studied. Twenty four male Wistar rats (180-200 g) were exposed either against saline as control group or var...

Objective(s): The effects of PPAR-γ agonist alone and in combination with carvacrol and Zataria multiflora on inhaled paraquat (PQ) induced-systemic inflammation and oxidative stress were examined. Materials and Methods: Control group exposed to normal saline aerosol, one group exposed to 54 mg/m3 PQ aerosol and four groups exposed to PQ...

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