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1. Rapid Residue Determination of Cyenopyrafen in Citrus Peel, Pulp, and Whole Fruit Using Ultra-Performance Liquid Chromatography/Tandem Mass Spectrometry

Author:
Gu, Yanping,   et al.   ; Tan, Huihua; Liu, Sihong; Zhang, Hui; Li, Xuesheng; Zeng, Dongqiang;     Show all 6 Authors
Source:
Food analytical methods 2018 v.11 no.8 pp. 2123-2130
ISSN:
1936-9751
Subject:
Citrus; acetonitrile; citrus fruits; citrus peels; citrus pulp; cleaning; detection limit; fruits; half life; ionization; magnesium sulfate; maximum residue limits; solid phase extraction; statistical analysis; tandem mass spectrometry; ultra-performance liquid chromatography; China
Abstract:
... A sample pretreatment method was established to analyze the residues of cyenopyrafen in citrus peel, pulp, and whole fruit using ultra-performance liquid chromatography coupled with tandem mass spectrometry. The target compound was extracted from all matrices with acetonitrile and then cleaned by dispersive solid phase extraction using 10 mg GCB + 150 mg MgSO₄ for citrus peel; 50 mg PSA + 150 mg M ...
DOI:
10.1007/s12161-018-1197-y

2. Application of the combination index (CI)-isobologram equation to research the toxicological interactions of clothianidin, thiamethoxam, and dinotefuran in honeybee, Apis mellifera

Author:
Gu, Yanping,   et al.   ; Liu, Yanmei; Liu, Sihong; Zhang, Hui; Li, Xuesheng; He, Mingyuan; Tan, Huihua;     Show all 7 Authors
Source:
Chemosphere 2017 v.184 pp. 806-811
ISSN:
0045-6535
Subject:
Apis mellifera; additive effect; air pollution; clothianidin; dinotefuran; dust; equations; guidelines; honey bees; nectar; pest control; plant tissues; pollen; risk; surface water; synergism; thiamethoxam; toxicity
Abstract:
... Due to complex pest control scenarios and the needs of agricultural production, different neonicotinoids may be used in certain agricultural applications. Consequently, honeybees may be exposed to these substances through distribution throughout plant tissues via the vascular system through several pathways, such as surface water, the exudates excreted from plants, and air pollution via drift of d ...
DOI:
10.1016/j.chemosphere.2017.06.045

3. Activation of P2X7 receptors in glial satellite cells reduces pain through downregulation of P2X3 receptors in nociceptive neurons

Author:
Gu, Yanping,   et al.   ; Chen, Yong; Zhang, Xiaofei; Wang, Congying; Li, GuangWen; Huang, Li-Yen Mae;     Show all 6 Authors
Source:
Proceedings of the National Academy of Sciences of the United States of America 2008 v.105 no.43 pp. 16773-16778
ISSN:
0027-8424
Subject:
adenosine triphosphate; agonists; animal injuries; antagonists; cytotoxicity; ganglia; gene expression regulation; nociception; pain; rats; receptors; sensory neurons; small interfering RNA; spinal cord
Abstract:
... Purinergic ionotropic P2X7 receptors (P2X7Rs) are closely associated with excitotoxicity and nociception. Inhibition of P2X7R activation has been considered as a potentially useful strategy to improve recovery from spinal cord injury and reduce inflammatory damage to trauma. The physiological functions of P2X7Rs, however, are poorly understood, even though such information is essential for making ...
DOI:
10.1073/pnas.0801793105
PubMed:
18946042
PubMed Central:
PMC2575495