Regulatory effect of Dimethyl Sulfoxide (DMSO) on astrocytic reactivity in a murine model of cerebral infarction by arterial embolization

Abstract

Introduction: The pathophysiology of cerebral ischemia is essential for early diagnosis, neurologic recovery, the early onset of drug treatment and the prognosis of ischemic events. Experimental models of cerebral ischemiac an be used to evaluate the cellular response phenomena and possible neurological protection by drugs. Objective: To characterize the cellular changes in the neuronal population and astrocytic response by the effect of Dimethyl Sulfoxide (DMSO) on a model of ischemia caused by cerebral embolism. Methods: Twenty Wistar rats were divided into four groups (n= 5). The infarct was induced with α-bovinethrombin (40 NIH/U). The treated group received 90 mg (100 µL) of DMSO in saline (1:1 v/v) intraperitoneally for 5 days; ischemic controls received only NaCl (placebo) and two non-ischemic groups (simulated) received NaCl and DMSO respectively. We evaluated the neuronal (anti-NeuN) and astrocytic immune-reactivity (anti-GFAP). The results were analyzed by densitometry (NIH Image J-Fiji 1.45 software) and analysis of variance (ANOVA) with the Graph pad software (Prism 5). Results: Cerebral embolism induced reproducible and reliable lesions in the cortex and hippocampus (CA1). similar to those of focal models. DMSO did not reverse the loss of post-ischemia neuronal immune-reactivity, but prevented the morphological damage of neurons, and significantly reduced astrocytic hyperactivity in thesomato-sensory cortex and CA1 (P <0.001). Conclusions: The regulatory effect of DMSO on astrocyte hyperreactivity and neuronal-astroglial cytoarchitecture, gives it potential neuroprotective properties for the treatment of thromboembolic cerebral ischemiain the acute phase.

Administration of Coumestrol and/or Dimethyl Sulfoxide Affects Vaginal Epithelium and Sex Hormones in Female Dog

“…Similarly, one or two intratesticular applications of DMSO with zinc gluconate did not harm dogs' health (Vannucchi et al 2015). In addition, in laboratory species, the beneficial use of DMSO in treating ischemic heart disease and inflammation has been reported (Lapuente et al 2013). Therefore, it is fair to say that COU and DMSO are safe for dogs at the doses and application frequencies used here and, in the documents cited above.…”

An Integrated Analysis of Network Pharmacology, Molecular Docking, and Experiment Validation to Explore the Mechanism of Danbai Granules in Treating Sequelae of Pelvic Inflammatory Disease

“…Statistical analysis was performed using SPSS 26.0 software, The data are expressed as mean ± SD. One-way ANOVA was used for the comparison of means among the groups [34], P < 0.05 was considered statistically significant. When p<0.05, it was considered to be statistically significant, and the difference between groups was significant.…”

Morphological Changes within the Rat Lateral Ventricle after the Administration of Proteasome Inhibitors

“…In the previous studies, 100% DMSO vehicle has been shown to act as a neuroprotective agent in a rat model of traumatic brain injury [ 52 ]. Moreover, in additional studies, a 50% saline solution of DMSO was shown to have a neuroprotective effect in a rat model of cerebral ischemia [ 53 ]. On the other hand, some studies recognize that DMSO can be potentially toxic (e.g., by triggering apoptotic cell death), even in low doses such as 0.5% and 1.0% [ 51 , 54 – 56 ].…”