Publications by authors named "Wenna Chen"

Background: The diagnosis and treatment of epilepsy continue to face numerous challenges, highlighting the urgent need for the development of rapid, accurate, and non-invasive methods for seizure detection. In recent years, advancements in the analysis of electroencephalogram (EEG) signals have garnered widespread attention, particularly in the area of seizure recognition.

Methods: A novel hybrid deep learning approach that combines feature fusion for efficient seizure detection is proposed in this study.

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Article Synopsis
  • Epilepsy causes sudden seizures that can make life difficult for those who have it, so finding a better way to detect and predict these seizures is really important.
  • This paper introduces a new method using advanced technology called CNN-GRU-AM to help detect and predict seizures by analyzing brain signals from EEG tests.
  • The new method showed amazing results, with very high accuracy in finding seizures, which could help doctors and patients take action quickly to stay safe.
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  • - Brain tumors are categorized by various characteristics like shape and location, making accurate classification essential for effective treatment planning.
  • - The authors propose a deep learning approach that combines features from three models (ResNet101, DenseNet121, and EfficientNetB0) to improve brain tumor classification accuracy while reducing overfitting risks.
  • - Using public datasets, the method shows impressive results, with the best accuracy of 99.18% on one dataset and 97.24% on another, particularly when fusing features from ResNet101 and DenseNet121.
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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.

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Background: Epilepsy is a neurological disorder that is usually detected by electroencephalogram (EEG) signals. Since manual examination of epilepsy seizures is a laborious and time-consuming process, lots of automatic epilepsy detection algorithms have been proposed. However, most of the available classification algorithms for epilepsy EEG signals adopted a single feature extraction, in turn to result in low classification accuracy.

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Background: China is the most populous country globally and has made significant achievements in the control of infectious diseases over the last decades. The 2003 SARS epidemic triggered the initiation of the China Information System for Disease Control and Prevention (CISDCP). Since then, numerous studies have investigated the epidemiological features and trends of individual infectious diseases in China; however, few considered the changing spatiotemporal trends and seasonality of these infectious diseases over time.

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Flexible strain sensor as a measurement tool plays a significant role in agricultural development by long-term stable monitoring of the dynamic progress of plant growth. However, existing strain sensors still suffer from severe drawbacks, such as large hysteresis, insufficient fatigue resistance, and inferior stability, limiting their broad applications in the long-term monitoring of plant growth. Herein, we fabricate a novel conductive hydrogel strain sensor which is achieved through uniformly dispersing the conductive activated charcoal (AC) in high-viscosity polyvinyl alcohol (PVA) solution forming a continuous conductive network and simple preparation by freezing-thawing.

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The Si-Jun-Zi decoction (SJZ), a traditional Chinese medicine (TCM) formula, is used clinically against multiple malignancies, including gastric cancer (GC). In previous study, we have shown that SJZ plays an anticancer role in SGC7901 cell xenograft mice models. However, the underlying mechanisms are unclear.

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Objective: 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.

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Glutamine, like glucose, is a major nutrient consumed by cancer cells, yet these cells undergo glutamine starvation in the cores of tumors, forcing them to evolve adaptive metabolic responses. Pharmacologically targeting glutamine metabolism or withdrawal has been exploited for therapeutic purposes, but does not always induce cancer cell death. The mechanism by which cancer cells adapt to resist glutamine starvation in cisplatin-resistant non-small-cell lung cancer (NSCLC) also remains uncertain.

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e. The present study aimed to investigate the potential mechanism underlying the antitumor effect of Si Jun Zi Tang (SJZT) decoction on gastric cancer. Twelve human gastric cancer SGC7901 cell xenograft nude mouse models were established.

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Puerarin has the anti-Alzheimer's disease (AD) activity,which can reverse nerve injury induced by Aβand inhibit neuronal apoptosis.However,its potential pharmacodynamic mechanism still needs to be further researched.The occurrence and development of AD is due to the change of multiple metabolic links in the body,which leads to the destruction of balance.

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Article Synopsis
  • The text discusses a medicinal plant from the Apocynaceae family, found in regions from India to the Philippines.
  • It provides details about the plant's plastid genome, which is 155,856 base pairs long and includes various gene types, such as protein-coding, ribosomal RNA, and transfer RNA.
  • Phylogenetic analysis indicates that this plant is closely related to another genus, though the specific genus name is not mentioned in the summary.
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The dry root (Radix Fici Hirtae) of has been used as a traditional herbal medicine in Ling nan regions of China for a long time. As its large market demand, the wild resources of have sharply reduced. It is necessary to conduct the study of conservation genetics.

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We previously reported that sputum induction was more sensitive than throat swabs for the detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in two convalescent coronavirus disease 2019 (COVID-19) patients; however, the value and safety of induced sputum testing require further study. We conducted a prospective multi-center cross-sectional study to compare induced sputum to throat swabs for SARS-CoV-2 detection. Confirmed COVID-19 patients from six hospitals in six cities across China who received one or more negative RT-PCR result for SARS-CoV-2 were enrolled, and paired specimens (induced sputum and throat swabs; 56 cases) were assayed.

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Exosomes are nanosized vesicles secreted by most cells, which can deliver a variety of functional lipids, proteins, and RNAs into the target cells to participate in complex intercellular communications. Cells respond to certain physical, chemical, and biological stimuli by releasing exosomes. Exosomes are rich in small molecules of RNA, including miRNAs and mRNAs, which have been demonstrated to have certain functions in recipient cells.

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Atherosclerosis (AS) is the principal cause of heart attack, sudden cardiac death, stroke, and necrosis of the extremities, in which significant changes in gene expression associated with inflammation are found. However, the molecular mechanisms of AS are not clearly elucidated. In this study, ApoE mice were fed with a high fat diet for 12 weeks to induce atherosclerosis and half of the mice were treated with tanshinone IIA (TAN).

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Background: Angelica dahurica (Apiaceae) is an important herb in traditional Chinese medicine. Because of its important medicinal and economic values, its wild resources were over-exploited and increasingly reduced. Meanwhile, the diversity of cultivars of A.

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Objective: Explored the mechanism of action of tanshinone IIA (TIIA) against atherosclerosis.

Methods: ApoE mice were divided into two groups of 10: model and TIIA. A control group of 10 wild-type mice was created.

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Background: Signal regulatory protein alpha (SIRPa) is an essential signalling molecule that modulates inflammatory responses in macrophages. However, the regulation of SIRPs and its dynamic changes in macrophages under inflammatory stimulation in atherosclerosis remain uncertain.

Objective: The study aimed to identify the miRNAs that regulate SIRPa transcription and their roles in modulating phagocytosis, differentiation and cholesterol efflux in macrophages.

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Macrophages play a pivotal role in destabilizing atherosclerotic plaque. The diverse phenotypes and complex autophagy in macrophage are observed in atherosclerotic lesions. Tanshinone IIA (TNA) is known as the major component extracted from the root of Chinese herb Salvia miltiorrhiza, used for treatment of cardiovascular diseases.

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Disruption 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.

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Sea buckthorn ( Hippophae rhamnoides L.) has multifarious medicinal properties including immunoregulatory effect. The total flavonoids of Hippophae rhamnoides L.

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MENK, an endogenous opioid peptide has been reported to have many immunological and antitumor activities. So far the detailed mechanisms of antitumor through regulating DCs by MENK have not been elucidated yet. The aim of this work was to investigate the antitumor mechanisms of MENK via regulating DC.

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