The objective of the present study was to develop a kinetics of pharmacodynamics model to properly describe and investigate the in vivo interaction between the selective adenosine A1 agonist N-cyclopentyladenosine (CPA), acetylcholinesterase (AChE) in blood and brain, and the AChE-inhibitor sarin (isopropylmethylphosphonofluoridate). The direct interaction of CPA (2 M) on the inhibition of AChE...

The objective of the present study was to develop a kinetics of pharmacodynamics model to properly describe and investigate the in vivo interaction between the selective adenosine A1 agonist N-cyclopentyladenosine (CPA), acetylcholinesterase (AChE) in blood and brain, and the AChE-inhibitor sarin (isopropylmethylphosphonofluoridate). The direct interaction of CPA (2 M) on the inhibition of AChE...

Prolonged administration of sublethal doses of organophosphorus cholinesterase inhibitors results in adaptation to their toxicity. In order to investigate this phenomenon, we exposed rats to 0.2, 0.3 or 0.4 LD50 of tabun sc daily during four weeks. AChE activities in erythrocytes, diaphragm and brain were inhibited dose-dependently after days 7 and 14 of the study and started to recover thereaf...

Dimetyl metylphosphonate (DMMP) is a simulant of sarin, which representative nerve agents. Sarin an organophosphorus toxic compound that inhibitor acetylcholinesterase, paralyzing human neurotransmission and the autonomic nervous system. Detection these agents has been considered important for safety issues to prevent terrorism counter military threats. Although there have various studies on se...

The protein kinase C (PKC) signaling pathway has been associated with modulation of N-metyl-D-aspartate receptor activity, motor behavior, learning, and memory, all of which are severely impaired in organophosphate (OP) intoxication. Nevertheless, the role of PKC in OP intoxication is largely unknown. The present study attempted to characterize alterations in the immunoreactivity levels of PKC ...

An innovative chromogenic sensing concept based on decomplexation of a tris-(bipyridine)iron(II) coordination complex has been developed for the detection of organophosphorus nerve agents. It was evaluated both on a simulant and real Sarin in vapour and liquid phases.

Gulf War Illness (GWI) is a multi-symptom disorder with features characteristic of persistent sickness behavior. Among conditions encountered in the Gulf War (GW) theater were physiological stressors (e.g., heat/cold/physical activity/sleep deprivation), prophylactic treatment with the reversible AChE inhibitor, pyridostigmine bromide (PB), the insect repellent, N,N-diethyl-meta-toluamide (DEET...