Folia Neuropathologica

INTRODUCTION: Since December 2019, coronavirus 2019 (COVID-19) has rapidly spread to become a global pandemic, exerting a great pressure on medical staff worldwide. This study aimed to observe whether COVID-19 influenced the diagnosis and treatment of ischemic stroke (IS). MATERIAL AND METHODS: This study retrospectively analysed the clinical data (number of emergencies, time from onset to treatment, and door-to-needle time [DNT]) of patients with acute IS (AIS) treated in our hospital within six months of the first case of COVID-19 reported in the city; the derived data were then compared with the situation of patients during the same period in 2019...

INTRODUCTION: The aim of the study was to investigate the pathogenesis of diabetic peripheral neuropathy (DPN) and the value of fibrinogen (FIB) in the early diagnosis of DPN. MATERIAL AND METHODS: A total of 121 patients with type 2 diabetes mellitus (T2DM) and DPN hospitalized in the Endocrinology Department of the 923 Hospital of the People's Liberation Army of China were randomly selected between May and October 2020 and divided into a T2DM asymptomatic (no peripheral neuropathy-related symptoms) group (66 cases) and a T2DM symptomatic group (55 cases) according to the presence or absence of clinical neurological symptoms and signs...

INTRODUCTION: In recent years, novel RNAs have been revealed to be regulators in glioma. ADAMTS8 has been reported to be reduced in brain tumours. In this study, we aimed to explore the role of ADAMTS8 in glioma. MATERIAL AND METHODS: Online bioinformatic tools, Gepia and Chinese Glioma Genome Atlas database (CGGA) were used to analyse the differential expression of ADAMTS8, overall survival and disease-free survival rates and the correlations between ADAMTS8 and matrix metallopeptidases (MMP2 and MMP9) in glioma...

Peroxisome proliferator-activated receptors α (PPARα) are members of the nuclear receptors family and a very potent transcription factor engaged in the regulation of lipid and energy metabolism. Recent data suggest that PPARα could play an important role in the pathomechanism of Alzheimer's disease (AD) and other neuropsychiatric disorders. This study focused on the effect of a synthetic ligand of PPARα, GW7647 on the transcription of genes encoding proteins of mitochondria biogenesis and dynamics in the brain of AD mice...

INTRODUCTION: Osteopontin (OPN) is involved in the pathogenesis of multiple sclerosis and its animal model, experimental autoimmune encephalomyelitis (EAE). The aim of this study was to investigate the expression of OPN in spinal cords of mice in the successive phases of EAE, to compare it with the density of inflammatory cells, oligodendrocytes and with the expression of interleukin (IL)-17A and to assess the effect of anti-α4β1 integrin (VLA-4) treatment. MATERIAL AND METHODS: Experimental autoimmune encephalomyelitis (EAE) mice were injected with anti-VLA-4 antibodies or, as treatment control, with immunoglobulin G (IgG)...

BCOR is expressed in a new brain tumour entity, i.e. 'CNS tumour with BCOR internal tandem duplication' (HGNET BCOR) but not in several other high grade paediatric brain tumours investigated. Immunohistochemical detection of BCOR expression may therefore serve as a potential diagnostic marker. Nevertheless, in rare paediatric glioma cases recurrent EP300-BCOR fusions were detected, which resulted in strong BCOR immunopositivity. We have therefore examined other, not analysed so far, types of central nervous system (CNS) tumours, pineoblastoma and germinoma, to assess a potential involvement of BCOR in these tumours...

Transactivation (TAR) DNA binding protein 43 kDa (TDP-43) inclusions frequently occur as a comorbid pathology in several neurodegenerative disorders, including Alzheimer's disease, Huntington's disease, Lewy body disease, and progressive supranuclear palsy, and may appear in association with nondegenerative neurological etiology, for example neoplastic, paraneoplastic, traumatic, or infectious. Relationships between various pathological proteins and mechanisms associated with TDP-43-induced neurodegeneration are still not fully understood...

INTRODUCTION: Acute cerebral ischemic stroke (AIS) dramatically influences patients' quality of life. lncRNA NORAD (NORAD) has been studied in cerebrovascular diseases, which are potential risk factors for AIS. The specific significance of NORAD is unclear. This study aimed to assess the role of NORAD in AIS, and to provide therapeutic value for its' treatment. MATERIAL AND METHODS: A total of 103 AIS patients and 95 healthy individuals (control) were enrolled into this study...

INTRODUCTION: The aim of the study was to explore the analgesic mechanism of effects of intrathecally administered interferon a (IFN-a) on chronic constriction injury (CCI) model rats. MATERIAL AND METHODS: 24 rats were divided into 6 groups, with 4 rats in each group, including the negative control group (Group N, no operation or treatment), the sham operation group (Group S, only the left sciatic nerve of the rats was exposed without ligation, 0.9% NaCl was intrathecally administered), and four experimental groups (CCI model was established first and then different drugs were intrathecally administered respectively), including 0...

INTRODUCTION: Glioma is one of primary brain tumours which has the worst clinical prognoses of patients. As an alternative chemotherapeutic drug for malignant glioma, the therapeutic effect of cisplatin (CDDP) is devastatingly affected due to resistance in patients. In this study, we investigated the effect of LINC00470/PTEN on the CDDP sensitivity of glioma cells. MATERIAL AND METHODS: Differentially expressed lncRNAs and the downstream regulators in glioma tissue were obtained via bioinformatics analysis...

INTRODUCTION: Acute ischemic stroke (AIS) is a disease with high morbidity and mortality in the clinic. The current experiments aimed to study the effects of UCA1 interfering miR-18a-5p on cerebral ischemia-reperfusion (CI/R). MATERIAL AND METHODS: For rat models undergoing middle cerebral artery infarction (MCAO) surgery, the expression of UCA1 and miR-18a-5p was evaluated by qRT-PCR, and underlying function was identified by detecting infarct size, neurological scores, and inflammation...

INTRODUCTION: As one of the most commonly used anesthetics, isoflurane has been demonstrated to possess a variety of protective effects. However, its' neurological impaired effect should be considered during clinical application. Roles of lncRNA BDNF-AS (BDNF-AS) and miR-214-3p in isoflurane-injured microglia and rats were investigated in this study, aiming to disclose the mechanism of isoflurane damage and to provide candidate therapeutic targets. MATERIAL AND METHODS: Isoflurane-induced microglia cells and rat models were established with 1...

Parkinson's disease (PD) is characterized by microglia activation that leads to neuroinflammation. Heat shock transcription factor 1 (HSF1) is known to exert neuroprotective effects on neurodegenerative diseases. This study sought to analyse the role and mechanism of HSF1 in PD-induced neuroinflammation. The PD mouse models were established using 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Animal behaviour capacities and neuronal damage were assessed via behavioural tests, tyrosine hydroxylase (TH) staining, and immunofluorescence...

INTRODUCTION: The aim of the study was to investigate the relationship between serum serotonin (5-HT) and central nervous system specific protein S100b application value in evaluating the severity of cognitive impairment after traumatic brain injury (TBI). MATERIAL AND METHODS: 102 patients with TBI treated in Jilin Neuropsychiatric Hospital from June 2018 to October 2020 were selected. According to Montreal Cognitive Assessment (MoCA) scale, patients were tested for cognitive function from multiple levels, such as attention, executive function, memory, and language...

INTRODUCTION: Alzheimer's disease (AD) is the most common cause of dementia and is characterized by a progressive deterioration in cognitive function, which typically begins with impairment in memory. Persian clover (Trifolium resupinatum) is an annual plant found in central Asia. Due to its contents (high flavonoid and isoflavones), extensive researches have been done on its therapeutic properties, such as multiple sclerosis (MS) treatment. In this study, we investigate the neuroprotective effects of this plant on Streptozotocin (STZ)-induced AD in rats...

Systemic lupus erythematosus (SLE) is a chronic recurrent autoimmune disease affecting almost all organs. This study was conducted to investigate cognitive impairment of SLE mice (MRL/lpr mice), and explore associated pathological mechanism. Behavior tests (open-field test, elevated plus-maze test, forced swimming test, sucrose preference test, and Morris water maze test) were conducted in MRL/MPJ and MRL/lpr mice. ELISA test was performed to determine levels of antibodies (anti-dsDNA, anti-RPA, anti-ACA, and anti-NR2a/b) and inflammatory factors [tumour necrosis factor a (TNF-a), interleukin (IL)-6, IL-8, and IL-10]...

INTRODUCTION: Brain pathology in patients with congenital heart disease (CHD) is associated with neuro-developmental delay. Imaging studies support vascular etiology for both white and gray matter lesions. In this retrospective study, we described the pathological changes in the brains of patients with CHD. MATERIAL AND METHODS: Last twenty autopsy cases in pediatric patients with CHD at our institution were retrieved and autopsy reports were reviewed. Available hematoxylin-eosin, special, and immunostains were evaluated, and at least one section from each case was stained with anti-glial fibrillary acidic protein (GFAP), anti-amyloid precursor protein (APP), and anti-HLA-DR antibody...

Alzheimer's disease (AD), also known as senile dementia, is a degenerative disease of the central nervous system and is characterized by insidious onset and a chronic progressive course. It is the most common type of senile dementia. Studies have proved that the deposition of amyloid b (Ab) in the brain is one of the initiating factors correlated to the pathology of AD, and it acts as one of the critical factors leading to the onset of AD. A large number of long-term studies have shown that Ab may be a therapeutic target for a breakthrough in the treatment of AD...

Cerebral small vessel disease (cSVD) is a disease defined by clinical symptoms and neuroimaging, which often causes a series of pathophysiological changes, blood-brain barrier destruction, brain tissue ischemia and involves cerebral arterioles, capillaries and venules. The exact pathogenesis of cSVD is unclear and there is no specific prevention and treatment for this potentially high disability rate disease. This article reviewed the latest research progress of neuroimaging of cSVD in order to improve our understanding of cSVD's manifestation and potential mechanism...

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