Beniwal Pooja, Joshi Jyoti, Kaur Sukhbir
Parasitology Laboratory, Department of Zoology, Panjab University, Chandigarh, India.
Goswami Ganesh Dutta Sanatan Dharma College, Sector-32C, Chandigarh, India.
J Parasit Dis. 2025 Jun;49(2):257-272. doi: 10.1007/s12639-024-01758-z. Epub 2024 Nov 15.
malaria presents a substantial threat as an infectious disease causing the most severe neurological complication- Cerebral malaria (CM). CM is responsible for approximately 400,000 annual fatalities among African children, constituting over 90% of the total deaths attributed to malaria. Remarkably, the mortality rate for children succumbing to severe malaria complicated by CM has remained relatively stable over the past decade, ranging between 0.15 and 0.25. The pathogenesis of CM is poorly understood, innumerable theories have explained the pathophysiological mechanisms but hitherto there are no firm conclusions about it. Insufficient access to human samples poses a significant obstacle to advancing research in Cerebral Malaria (CM). However, various post-mortem histopathological studies of human tissues and mice models of CM have revealed the parasite's adherence within the cerebral microvasculature. This adherence is thought to be crucial in the development of the condition, contributing to subsequent pathological alterations in the surrounding tissue and ultimately leading to neural dysfunction. It also leads to the breakdown of the Blood-Brain Barrier leading to haemorrhages. This clinical syndrome is primarily characterized by a significant impairment in consciousness or a state of coma. Patients who survive often experience prolonged neurological complications, such as hemiplegia, partial paralysis, seizure disorders, ataxia, changes in behaviour, and cognitive deficits. To date, several adjunctive treatment approaches have yielded limited success, and numerous attempts to develop effective neuroprotective adjunctive therapies have failed, emphasizing the pressing need for advancements in this area.
疟疾作为一种传染病,构成了重大威胁,会引发最严重的神经并发症——脑型疟疾(CM)。脑型疟疾每年导致约40万非洲儿童死亡,占疟疾所致总死亡人数的90%以上。值得注意的是,在过去十年中,死于严重疟疾并发脑型疟疾的儿童死亡率一直相对稳定,在0.15至0.25之间。脑型疟疾的发病机制尚不清楚,无数理论解释了其病理生理机制,但迄今为止尚无定论。获取人体样本的不足对推进脑型疟疾(CM)的研究构成了重大障碍。然而,对人体组织和脑型疟疾小鼠模型的各种尸检组织病理学研究揭示了寄生虫在脑微血管中的黏附。这种黏附被认为在该病的发展中至关重要,会导致周围组织随后的病理改变,并最终导致神经功能障碍。它还会导致血脑屏障的破坏,进而引发出血。这种临床综合征的主要特征是意识严重受损或昏迷状态。存活下来的患者常常会经历长期的神经并发症,如偏瘫、部分瘫痪、癫痫障碍、共济失调、行为改变和认知缺陷。迄今为止,几种辅助治疗方法取得的成功有限,并且许多开发有效的神经保护辅助疗法的尝试都失败了,这凸显了该领域取得进展的迫切需求。