College of Pharmacy, University of Sharjah, Sharjah, United Arab Emirates.
Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, United Arab Emirates.
Crit Rev Toxicol. 2020 Oct;50(9):764-779. doi: 10.1080/10408444.2020.1837069. Epub 2020 Nov 13.
Organophosphorus agents (OP) are widely used as pesticides due to their cost effectiveness, yet they present a significant public health risk owing to their high toxicity, especially in cases of occupational exposure in agriculture, during suicide attempts using pesticides, and as nerve agents in warfare. Their vigorous permeability through inhalation, ingestion, and dermal exposure results in a high number of reported OP poisoning cases and alarming mortality rates. Initial first-aid management involves decontamination, ventilation, and hemodialysis. Additionally, current treatment guidelines recommend prompt administration of atropine as a first-line antidote, oximes as a follow-up, benzodiazepines for seizure control, and pyridostigmine for prophylaxis. Nevertheless, current treatment options are associated with several challenges. Thus, recent research has focused on investigating novel approaches for their potential in improving current management strategies. This article intends to review recent advances in OP poisoning treatment, including agents investigated for their use as an alternative or adjunctive therapy, novel formulations such as nasal drops or sublingual tablets for emergency administration of atropine, as well as innovative strategies for enhanced oximes delivery and overall efficacy. However, two major barriers may limit these innovations, ethical issues associated with their clinical assessment in emergencies, and limited profitability in countries where most cases occur.
有机磷农药(OP)由于其成本效益高,被广泛用作农药,但由于其毒性高,尤其是在农业职业暴露、自杀时使用农药以及作为战争中的神经毒剂的情况下,对公共健康构成了重大威胁。它们通过吸入、摄入和皮肤接触的强烈渗透性导致了大量报告的 OP 中毒病例和惊人的死亡率。最初的急救管理包括去污、通风和血液透析。此外,目前的治疗指南建议及时给予阿托品作为一线解毒剂,肟类化合物作为后续治疗,苯二氮䓬类药物用于控制癫痫发作,以及吡啶斯的明用于预防。然而,目前的治疗选择存在一些挑战。因此,最近的研究集中在研究新方法,以探索其在改善现有管理策略方面的潜力。本文旨在综述 OP 中毒治疗的最新进展,包括研究用作替代或辅助治疗的药物,以及用于紧急给予阿托品的鼻滴或舌下片剂等新型制剂,以及增强肟类化合物递送和整体疗效的创新策略。然而,有两个主要障碍可能限制这些创新,一个是与它们在紧急情况下的临床评估相关的伦理问题,另一个是在大多数病例发生的国家盈利能力有限。