The relationship between neutrophil-to-lymphocyte ratio and cerebral collateral circulation in patients with symptomatic severe intracranial artery stenosis or occlusion.

Background: The neutrophil/lymphocyte ratio (NLR) has been considered a prognostic indicator for determining the systemic inflammatory response and atherosclerosis. We aimed to determine the relationship between NLR and the development of cerebral collateral circulation in patients with symptomatic severe stenosis or occlusion of intracranial arteries.

Methods: All patients underwent digital subtraction angiography (DSA) within 14 days of admission and were divided into a group with good collateral circulation (77 patients) and a group with poor collateral circulation (86 patients) according to the DSA collateral compensation grading method.

Synthesis of Copper-Doped MnO2 Electrode Materials by One-Step Hydrothermal Method for High Performance.

By adjusting the amount of Cu(NO3)2·3H2O, Cu2+-doped birnessite ?-MnO2 spherical substances were synthesized by a simple hydrothermal synthesis process without any templates and surfactants. The structure, morphology, and specific surface area were characterized by XRD, SEM, TEM and BET. Further study shows that the 0.