Publications by authors named "Zai-wang Li"

Article Synopsis
  • Rhynchophylline (RHY), an active ingredient in Ningdong granule, is studied for its potential to alleviate hyperactivity and cognitive issues in ADHD and Tourette syndrome patients, although its mechanisms remain unclear.
  • A study of male dopamine transporter knockout mice (DAT-) found that RHY treatment improved their hyperactivity and cognitive flexibility, evaluated through specific behavioral tests.
  • RHY also reduced inflammatory markers in mouse brains and in cultured neuroinflammatory cells, indicating it may work by inhibiting inflammation.
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Article Synopsis
  • EGFR activation plays a key role in disrupting the blood spinal cord barrier (BSCB) and contributing to secondary injury following spinal cord injury (SCI), though the exact mechanisms are not fully understood.
  • The study utilized both in vitro and in vivo models to investigate how the EGFR/p38/NF-κB signaling pathway affects inflammatory responses and BSCB damage in spinal cord cells.
  • Findings indicate that when EGFR and p38 are activated, they lead to increased inflammatory factors and decreased tight junction proteins, resulting in BSCB breakdown; inhibiting these pathways can reduce inflammation and protect BSCB integrity.
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Anti--methyl-d-aspartate receptor (NMDAR) encephalitis, a serious neurological autoimmune disorder caused by autoantibodies with diverse clinical manifestations, may simultaneously onset with antimyelin oligodendrocyte glycoprotein (MOG) demyelination after recurrent central nervous system (CNS) demyelination. We present a case of anti-NMDAR encephalitis combining with anti-MOG CNS demyelination following recurrent CNS demyelination. A 38-year-old man admitted to hospital developed epileptic seizures following recurrent episodes of cross-sensory disturbance and dizziness.

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This study aimed to evaluate the possible mechanism of Ningdong granule (NDG) for the treatment of Tourette syndrome (TS). The rats with stereotyped behavior were established by microinjection with TS patients' sera; then, the model rats were divided into NDG and haloperidol (Hal) group, and the nonmedication model rats were regarded as treatment control (TS group). The stereotyped behavior of the rats was recorded, the level of dopamine (DA) in striatum, and the content of homovanillic acid (HVA) in sera were tested, and dopamine transporter (DAT) expression was measured in the study.

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Myasthenia gravis (MG) is an acquired autoimmune disease affecting the postsynaptic membrane of neuromuscular junctions and characterized by antibody-mediated T cell dependence and complement involvement. Cholinesterase inhibitors (e.g.

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Objective: To characterize the microenvironment following blood-spinal cord barrier (BSCB) damage and to evaluate the role of BSCB disruption in secondary damage of spinal cord injury (SCI).

Methods: A model of BSCB damage was established by co-culture of primary microvascular endothelial cells and glial cells obtained from rat spinal cord tissue followed by oxygen glucose deprivation/re-oxygenation (OGD/R). Permeability was evaluated by measuring the transendothelial electrical resistance (TEER) and the leakage test of Fluorescein isothiocyanate-dextran (FITC-dextran).

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Introduction: Subjective chronic tinnitus is a common medical syndrome with a high frequency of cognitive impairment; however, the characteristics of cognitive impairment in chronic tinnitus are poorly understood. Investigating the scope of cognitive impairment across the severity spectrum of tinnitus patients may shed light on the issue.

Methods: A consecutive series of 207 subjective chronic tinnitus patients were classified into mild tinnitus group ( = 95) and severe tinnitus group ( = 112) by THI score (the cutoff THI scores were 37/38).

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Background: Astrogliosis is a common phenomenon after spinal cord injury (SCI). Although this process exerts positive effects on axonal regeneration, excessive astrogliosis imparts negative effects on neuronal repair and recovery. Epidermal growth factor receptor (EGFR) pathway is critical to the regulation of reactive astrogliosis, and therefore is a potential target of therapeutics to better control the response.

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Background: Attention deficit/hyperactivity disorder (ADHD) is a common neurobehavioral and neuropsychiatric disorder in school-age children, and recent studies provide evidence implicating the metabolic abnormalities of dopamine (DA) for its pathophysiology. Methylphenidate, a kind of psychostimulant, is widely used in the treatment of ADHD, but some patients do not respond to it or cannot bear its side effects. As a traditional Chinese medicine preparation, Ningdong granule (NDG) has been used in the treatment of ADHD for several years in China.

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As a physical barrier to regenerating axons, reactive astrogliosis is also a biochemical barrier which can secrete inhibitory molecules, including chondroitin sulfate proteoglycans (CSPGs) in the pathological mechanism of spinal cord injury (SCI). Thus, inhibition of astroglial proliferation and CSPG production might facilitate axonal regeneration after SCI. Recent studies have demonstrated that epidermal growth factor receptor (EGFR) activation triggers quiescent astrocytes into becoming reactive astrocytes and forming glial scar after CNS injury.

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Depressive symptoms are common in essential tremor (ET) and may be a primary feature of the underlying disease. However, it is still unclear whether depression in ET and depression in primary affective disorders share common clinical manifestations. Sixty-one depressed ET patients and 112 depressed patients without ET were assessed using the Montgomery-Asberg Depression Rating Scale (MADRS).

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Background: Stroke and traumatic injury to the nerve system may trigger axonal destruction and the formation of scar tissue, cystic cavitations and physical gaps. Olfactory ensheathing cells (OECs) can secrete neurotrophic factors to promote neurite growth and thus act as a prime candidate for autologous transplantation. Biological scaffolds can provide a robust delivery vehicle to injured nerve tissue for neural cell transplantation strategies, owing to the porous three-dimensional structures (3D).

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Objective: To investigate the effects of combined transplantation of neural stem cells (NSC) and olfactory ensheathing cells (OEC) on the motor function of rats with intracerebral hemorrhage.

Methods: In three days after a rat model of caudate nucleus hemorrhage was established, NSCs and OEC, NSC, OEC (from embryos of Wistar rats) or normal saline were injected into hematomas of rats in combined transplantation group, NSC group, OEC group, and control group, respectively. Damage of neural function was scored before and in 3, 7, 14, 30 days after operation.

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Article Synopsis
  • The study developed a model of supratentorial intracerebral hemorrhage (ICH) in piglets to mimic neurological deficits commonly observed in humans.
  • During the experiment, 18 piglets received blood injections after balloon inflation in the brain, with 16 developing a significant hematoma and displaying behavioral deficits like lameness within 24 hours.
  • This model successfully induced brain tissue damage that worsened initially but showed signs of improvement after a week, making it a useful tool for researching ICH treatments and effects.
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Irradiation-induced brain injury, leading to cognitive impairment several months to years after whole brain irradiation (WBI) therapy, is a common health problem in patients with primary or metastatic brain tumor and greatly impairs quality of life for tumor survivors. Recently, it has been demonstrated that a rapid and sustained increase in activated microglia following WBI led to a chronic inflammatory response and a corresponding decrease in hippocampal neurogenesis. Tamoxifen, serving as a radiosensitizer and a useful agent in combination therapy of glioma, has been found to exert anti-inflammatory response both in cultured microglial cells and in a spinal cord injury model.

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