Publications by authors named "Zhen-Zhen Qu"

Article Synopsis
  • * In a study involving male Sprague-Dawley rats with induced epilepsy, low-frequency rTMS was found to significantly reduce the frequency and incidence of seizures, while also protecting hippocampal neurons from damage and death.
  • * rTMS increased the expression of important proteins (AMPAR GluA1 and STIM) in the hippocampus, which may contribute to its neuroprotective effects by regulating calcium levels and reducing oxidative stress in neurons.
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Epilepsy, especially the medial temporal lobe epilepsy (TLE), can result in cognitive impairment. Low‑frequency repetitive magnetic stimulation (rTMS) has been verified to suppress neural excitability and reduce seizures. Given its potential in modifying cortical activity, we aimed to investigate its impact on cognitive function in the context of epilepsy, a condition where the use of rTMS has not been extensively explored.

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Invasive surgical cerebrum biopsy results in delayed treatment for the definitive diagnosis of primary central nervous system lymphoma (PCNSL). The existent research was aimed at confirming the underlying diagnostic miRNAs of distinguishing PCNSL from glioma. A publicly available miRNA expression profiles (GSE139031) from adult PCNSL as well as glioma specimens were provided by GEO datasets.

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BACKGROUND This study was designed to investigate the potential anticonvulsant and neuroprotective effects of methylene blue (MB) on self-sustaining status epilepticus (SSSE) induced by prolonged basolateral amygdala stimulation (BLA) in Wistar rats. MATERIAL AND METHODS The rats were randomly divided into 4 groups: (1) the Control group (rats without any treatment); (2) the Sham group (rats received electrode implantation but without electrical stimulation); (3) the SSSE group (rats received electrode implantation and additional electrical stimulation); and (4) the SSSE+MB group (rats received 1 mg/kg MB intraperitoneal injection 5 min after SSSE). SSSE models were established by prolonged BLA stimulation.

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Background: Uremic Encephalopathy (UE) is a neurological complication associated with acute or chronic renal failure. Imaging findings of UE may present involvement of the basal ganglia, cortical or subcortical regions, and white matter. We report a rare case of UE caused by neurogenic bladder with isolated brainstem involvement revealed by magnetic resonance imaging (MRI).

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Purpose: To evaluate the sealing ability of three different lengths of root canal fillings after post space and two different obturation techniques by using a glucose leakage test, and provide theoretical basis for clinical selection of best collocation of root canal filling methods and residual root canal filling materials.

Methods: One hundred and thirty-two extracted single-root teeth were randomly divided into 6 experimental groups(n=20 each), positive(n=6)and negative controls(n=6). After root canal preparation, different treatments were performed in different groups.

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Most antiepileptic drugs (AEDs) interfere with cognitive function, and there is therefore an urgent need for AEDs that are effective but do not have this side effect. Various studies have reported the antiinflammatory and cytoprotective properties of the natural flavonoid luteolin (LU); however, none has examined systematically its antiseizure potential. The current study investigated the effects of LU on pentylenetetrazole (PTZ)-induced cognitive impairment in rats and the underlying mechanisms.

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Mild brief hypoxia can protect against neuronal damage induced by epileptic seizures, at least in part by inhibiting apoptosis. Further elucidation of the antiepileptic mechanisms and optimization of the conditioning protocols are required before this strategy can be considered for clinical intervention. In this study, we compared the effects of different hypoxic preconditioning protocols on spontaneous recurrent seizures (SRS), intracellular free calcium concentration ([Ca(2+)]i), and apoptosis rate following pilocarpine-induced status epilepticus (SE).

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Maternal seizure has adverse effects on brain histology as well as on learning and memory ability in progeny. An enriched environment (EE) is known to promote structural changes in the brain and improve cognitive and motor deficits following a variety of brain injuries. Whether EE treatment in early postnatal periods could restore cognitive impairment induced by prenatal maternal seizure is unknown.

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Cognitive dysfunction is commonly observed in epileptic patients. It has been shown that not only epilepsy but also antiepileptic drugs could induce cognitive impairment. Thus, there is an urgent need for drugs that can suppress seizures without causing cognitive deficit.

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