当前位置: X-MOL 学术J. Neuroimmunol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Age-related changes in cerebral congenital toxoplasmosis: Histopathological and immunohistochemical evaluation
Journal of Neuroimmunology ( IF 3.3 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.jneuroim.2020.577384
Abeer E Saad 1 , Dalia S Ashour 2 , Lamees M Dawood 3 , Safinaz H El-Shorbagy 4
Affiliation  

Congenital toxoplasmosis is a widespread worldwide disease producing varying degrees of damage to the fetus including ocular and neurological impairment. However, the underlying mechanisms are not yet clear. Therefore, the current study aimed to investigate the progress of congenital cerebral toxoplasmosis in experimentally infected offspring animal model at different age groups till become adults. To fulfill this aim, the offspring of Me49 T. gondii infected pregnant mice were divided into groups; embryo, infant, young and adult phases. Blood and brain samples were collected for further hormonal and histopathological studies and immunohistochemical staining of glial fibrillary acidic protein (GFAP) and synaptophysin (SYN). Our results showed several encephalitic changes in the infected groups ranging from gliosis to reduced cortical cell number and fibrinoid degeneration of the brain. We showed increased expression of GFAP and SYN indicating activation of astrocytes and modification of the synaptic function, respectively. These changes started intrauterine following congenital infection and increased progressively afterward. Moreover, infected mice had elevated corticosterone levels. In conclusion, the current study provided new evidences for the cellular changes especially in the infected embryo and highlighted the role of GFAP and SYN that may be used as indicators for T. gondii-related neuropathy.

中文翻译:

脑先天性弓形体病的年龄相关变化:组织病理学和免疫组织化学评估

先天性弓形体病是一种世界范围内普遍存在的疾病,会对胎儿造成不同程度的损害,包括眼部和神经功能障碍。然而,潜在的机制尚不清楚。因此,本研究旨在探讨先天性脑弓形体病在不同年龄组的实验感染后代动物模型中直至成年的进展。为了实现这一目标,将感染 Me49 T. gondii 的怀孕小鼠的后代分成几组;胚胎期、婴儿期、青年期和成人期。收集血液和大脑样本用于进一步的激素和组织病理学研究以及神经胶质纤维酸性蛋白 (GFAP) 和突触素 (SYN) 的免疫组织化学染色。我们的结果显示受感染组出现了几种脑炎变化,从神经胶质增生到皮质细胞数量减少和大脑纤维蛋白样变性。我们显示 GFAP 和 SYN 的表达增加,分别表明星形胶质细胞的激活和突触功能的改变。这些变化在先天性感染后从宫内开始,然后逐渐增加。此外,受感染小鼠的皮质酮水平升高。总之,目前的研究为细胞变化提供了新的证据,尤其是在受感染胚胎中,并强调了 GFAP 和 SYN 的作用,可用作弓形虫相关神经病变的指标。分别。这些变化在先天性感染后从宫内开始,然后逐渐增加。此外,受感染小鼠的皮质酮水平升高。总之,目前的研究为细胞变化提供了新的证据,尤其是在受感染胚胎中,并强调了 GFAP 和 SYN 的作用,可用作弓形虫相关神经病变的指标。分别。这些变化在先天性感染后从宫内开始,然后逐渐增加。此外,受感染小鼠的皮质酮水平升高。总之,目前的研究为细胞变化提供了新的证据,尤其是在受感染胚胎中,并强调了 GFAP 和 SYN 的作用,可用作弓形虫相关神经病变的指标。
更新日期:2020-11-01
down
wechat
bug