Early and accurate brain tumor classification is vital for clinical diagnosis and treatment. Although Convolutional Neural Networks (CNNs) are widely used in medical image analysis, they often struggle to focus on critical information adequately and have limited feature extraction capabilities. To address these challenges, this study proposes a novel Residual Network based on Multi-dimensional Attention and Pinwheel Convolution (Res-MAPNet) for Magnetic Resonance Imaging (MRI) based brain tumor classification.
View Article and Find Full Text PDFConventional bone grafts face challenges in clinical applications, including donor shortages, immunological rejection, and mismatched degradation rates. This work introduces a porous microsphere scaffold loaded with self-assembled tea polyphenolic‑magnesium biomineralized nanoparticles to synergistically enhance antibacterial and osteogenic properties through a dual-factor spatiotemporal controlled release approach. Employing a biomimetic mineralization mechanism that mimics natural bone mineral formation, these nanoparticles integrate tea polyphenols with magnesium ions.
View Article and Find Full Text PDFIntroduction: Brain tumors seriously endanger human health. Therefore, accurately identifying the types of brain tumors and adopting corresponding treatment methods is of vital importance, which is of great significance for saving patients' lives. The use of computer-aided systems (CAD) for the differentiation of brain tumors has proved to be a reliable scheme.
View Article and Find Full Text PDFBidirectional two-sample Mendelian randomization (MR) was performed to provide genetic evidence for the causal association between multiple sclerosis (MS), type 1 diabetes(T1D), rheumatoid arthritis (RA) and inflammatory bowel disease (IBD), Crohn's disease (CD), systemic lupus erythematosus (SLE), ulcerative colitis (UC) and lactate levels. Inverse variance weighted (IVW), weighted median estimator (WME), weighted mode, and MR-Egger regression were used to assess the potential causal links. Sensitivity analysis included Cochran's Q test for heterogeneity, Steiger test of directionality for directionality, MR-Egger regression, MR pleiotropy residual sum and outlier (MR-PRESSO), and leave-one-out method.
View Article and Find Full Text PDFIntroduction: Brain tumors pose significant harm to the functionality of the human nervous system. There are lots of models which can classify brain tumor type. However, the available methods did not pay special attention to long-range information, which limits model accuracy improvement.
View Article and Find Full Text PDFDrug Des Devel Ther
December 2024
This review elucidates the pivotal role of pyroptosis, triggered by gut microbiota, in the development of multiple sclerosis (MS), emphasizing its significance within the gut-brain axis. Our comprehensive analysis of recent literature reveals how dysbiosis in the gut microbiota of MS patients-characterized by reduced microbial diversity and shifts in bacterial populations-profoundly impacts immune regulation and the integrity of the central nervous system (CNS). Pyroptosis, an inflammatory form of programmed cell death, significantly exacerbates MS by promoting the release of inflammatory cytokines and causing substantial damage to CNS tissues.
View Article and Find Full Text PDFCNS Neurosci Ther
December 2024
Introduction: This review delves into the intricate relationship between NLR inflammasomes, particularly the NLRP3 inflammasome, and the immune-mediated neurodegenerative disease, multiple sclerosis (MS). While the precise etiology of MS remains elusive, compelling research underscores the pivotal role of the immune response in disease progression. Notably, recent investigations highlight the significant involvement of NLRP3 inflammasomes in various autoimmune diseases, prompting an in-depth exploration of their impact on MS.
View Article and Find Full Text PDFFerroptosis is a newly recognized type of programmed cell death that is implicated in the pathophysiological process of neurological disorders. Our previous studies have revealed that exposure to high concentrations of fluoride for long periods of time induces hippocampal neural injury and cognitive deficits. However, whether ferroptosis is involved in fluoride-induced neuronal death and the underlying mechanism remain unknown.
View Article and Find Full Text PDFFront Neurosci
February 2024
Objective: This study aimed to explore the characteristics of carbapenem-resistant Enterobacterales (CRE) patients in the intensive care unit (ICU) in different regions of Henan Province to provide evidence for the targeted prevention and treatment of CRE.
Methods: This was a cross-sectional study. CRE screening was conducted in the ICUs of 78 hospitals in Henan Province, China, on March 10, 2021.
World J Psychiatry
November 2023
Background: The psychological state of patients with post stroke limb movement disorders undergoes a series of changes that affect rehabilitation training and recovery of limb motor function.
Aim: To determine the correlation between motor rehabilitation and the psychological state of patients with limb movement disorders after stroke.
Methods: Eighty patients with upper and lower limb dysfunction post stroke were retrospectively enrolled in our study.
Brain tumors are one of the most threatening diseases to human health. Accurate identification of the type of brain tumor is essential for patients and doctors. An automated brain tumor diagnosis system based on Magnetic Resonance Imaging (MRI) can help doctors to identify the type of tumor and reduce their workload, so it is vital to improve the performance of such systems.
View Article and Find Full Text PDFObjective: The purpose of the systematic review is to verify the effect of biofeedback therapy on limb motor rehabilitation in patients with acute stroke and to provide evidence-based medicine for the promotion and use of biofeedback therapy.
Methods: The randomized controlled trials (RCT) of biofeedback therapy in the treatment of cerebral palsy were searched in PubMed, EMBASE, ScienceDirect, Cochrane Library, China National Knowledge Infrastructure (CNKI), China VIP Database, Wanfang Database, and Chinese Biomedical Literature Database (CBM). The starting time and ending time of this study are from the time of building the database of the number of pieces to October 31, 2018.
The present study aimed to explore the predictive ability of an ultrasound linear regression equation in patients undergoing endovascular stent placement (ESP) to treat carotid artery stenosis-induced ischemic stroke. Pearson's correlation coefficient of actual improvement rate (IR) and 10 preoperative ultrasound indices in the carotid arteries of 64 patients who underwent ESP were retrospectively analyzed. A predictive ultrasound model for the fitted IR after ESP was established.
View Article and Find Full Text PDFIEEE J Biomed Health Inform
September 2019
For many cerebrovascular diseases both blood pressure (BP) and hemodynamic changes are important clinical variables. In this paper, we describe the development of a novel approach to noninvasively and simultaneously monitor cerebral hemodynamics, BP, and other important parameters at high temporal resolution (250 Hz sampling rate). In this approach, cerebral hemodynamics are acquired using near infrared spectroscopy based sensors and algorithms, whereas continuous BP is acquired by superficial temporal artery tonometry with pulse transit time based drift correction.
View Article and Find Full Text PDFJ Cell Biochem
November 2018
This study aims to explore the effects of Notch1 gene on remyelination in multiple sclerosis (MS). A mouse model of acute demyelination was successfully established and the model mice were grouped as cuprizone (CPZ) group, CPZ + small interfering RNA (siRNA)-Notch1 (siNotch1) group, and CPZ + siRNA negative control (NC) group. Meanwhile, another 3 groups (control, control + siNotch1, and control + siRNA NC) were established in normal mice.
View Article and Find Full Text PDFCNS Neurol Disord Drug Targets
October 2019
Background: Aphasia is a common complication after stroke, and traditional speech and language therapy (SLT) has a limited effect on post-stroke aphasia (PSA). While there has been an increasing number of controlled clinical trials on the efficacy of drugs in the treatment of PSA, there have been very few systematic reviews on the efficacy and safety of pharmacological treatments in people with PSA.
Objective: To evaluate the efficacy and safety of pharmacological interventions for PSA.
Int J Mol Med
March 2018
The pathogenesis of Alzheimer's disease (AD) has still not been fully elucidated, however it is thought that the build up of amyloid plaque at least partially causes the symptoms of AD. MicroRNAs (miRNAs) are endogenous non‑coding small RNA molecules that regulate the expression and degradation of proteins. The present study induced symptoms of AD in mice via intraventricular injection of amyloid‑β 1‑42 (Aβ1‑42), which decreased levels of miR‑107.
View Article and Find Full Text PDFDisruption of the blood-brain barrier associated with endothelial dysfunction is an important hallmark of Parkinson's disease (PD). 6-Hydroxydopamine (6-OHDA) is a synthetic dopamine derivate often used to model PD as it results in retrograde degeneration of striatal dopaminergic (DA) terminals. Presently, the effects of 6-OHDA on endothelial dysfunction remain unknown.
View Article and Find Full Text PDFTo explore the brainstem injury associated with supratentorial lesions, we conducted analysis of ICP levels and detected ENG parameters by using the cold caloric reflex test and histopathological examinations of the brainstem. Rat model of intracerebral hemorrhage was well-established in the study of supratentorial lesions of varying severities (n=210). Intracerebral pressure monitoring and electronystagmography of the cold caloric reflex test were simultaneously performed in animals.
View Article and Find Full Text PDFBACKGROUND Ischemic stroke is widely recognized as a major health problem and social burden worldwide, and it usually leads to dementia. In this study, we aimed to better understand the pathogenesis in the development of dementia following ischemic stroke. MATERIAL AND METHODS We exploited miRNA database to search for the target for miR-125a and validated the found target using luciferase assay.
View Article and Find Full Text PDFJ Renin Angiotensin Aldosterone Syst
September 2015
Objective: The angiotensinogen (AGT) gene polymorphisms has been shown to be involved in the development of ischemic stroke. However, the published studies have yielded inconsistent results. We performed a meta-analysis to assess the correlation.
View Article and Find Full Text PDFParkinson's disease (PD) is one of the most common age‑related neurodegenerative diseases, which results from a number of environmental and inherited factors. PD is characterized by the slow progressive degeneration of dopaminergic (DA) neurons in the substantia nigra. The nigrostriatal DA neurons are particularly vulnerable to inflammatory attack.
View Article and Find Full Text PDFThis study investigates the impact of simvastatin on neuroinflammation in experimental parkinsonian cell models. 6-Hydroxydopamine (6-OHDA)-treated pheochromocytoma-12 (PC12) cells were used to investigate the neuroprotective nature of simvastatin. After incubation with 6-OHDA, simvastatin, and/or N-methyl-D-aspartic acid receptor 1 (NMDAR1) siRNA for 24 hr, test kits were used to detect the levels of lactate dehydrogenase (LDH) and glutamate released from PC12 cells exposed to different culture media.
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