Publications by authors named "Keke Chen"

Interventional embolization has been widely used as a clinical cancer therapy, which deactivates the tumors by occluding their blood supply vessels. However, conventional methods lack active control over the embolic particles, thus having a limited selectivity of millimeter-scale vessels and the issue of missing embolization. Here, we propose an ultrasound-based method for embolic particle control in submillimeter vessels.

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Intimate partner violence (IPV) is a significant public health issue affecting many women worldwide. While extensive research exists on IPV during pregnancy and postpartum, there is limited information on IPV against mothers during the critical child-rearing stage, specifically the first three years following childbirth. This study examines the prevalence and patterns of IPV among mothers in China during this stage, identifying associated factors across four family subsystems: individual, husband-and-wife, mother-child, and family context, to guide the development of tailored prevention strategies.

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Attention impairment, a prevalent non-motor symptom in Parkinson's disease (PD), plays a crucial role in movement disorders. PD patients exhibit abnormalities in the attentional network related to alerting, orienting, and executive control. While dopamine medications have well-documented effects on motor function, their impact on attention networks and the underlying neural mechanisms involved in motor functions remain unclear.

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Objectives: Current literature on imaging characteristics of hepatic inflammatory pseudotumor (HIPT) is limited. This study aimed to analyze the contrast-enhanced ultrasound (CEUS) features in HIPT and compare them with contrast-enhanced computed tomography (CECT) and contrast-enhanced magnetic resonance imaging (CEMRI).

Methods: A total of 83 patients with histologically proven HIPT from two medical institutions were included in this study.

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  • The article DOI: 10.1117/1.JBO.29.1.015001 has been updated to correct an error.
  • The correction ensures accuracy in the reported findings and conclusions of the research.
  • Readers should refer to the corrected version for the most reliable information.
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  • Taibai Beimu (Fritillaria taipaiensis) is a traditional Chinese herb used for respiratory problems, but in 2022 and 2023, foliage issues such as yellowing and wilting were noted in a field in Shenluo.
  • Infected bulbs displayed brown to black lesions, and fifty symptomatic bulbs were analyzed to investigate the cause of the disease.
  • The analysis revealed similarities to the fungus Fusarium avenaceum, and various morphological characteristics and genomic DNA were studied to confirm this identification.
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The application of As-Se chalcogenide glasses in high-power laser delivery is hindered by their low damage threshold due to their weak chemical bonds. To solve this, we introduced germanium elements into the As-Se glasses and optimized the composition to raise the glass transition temperature (T) and enhance the laser damage threshold (LDT). From the correlation among various parameters including T, LDT, and fiber loss, we concluded an optimized composition of GeAsSe/GeAsSe glass.

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Background: Tremor-dominant (TD) and nontremor-dominant (NTD) Parkinson's disease (PD) showed different responses to rehabilitation. However, the neural mechanism behind this remains unclear.

Methods: This cohort study explores changes in motor function, brain activation, and functional connectivity following 2 weeks of rehabilitation in TD-PD and NTD-PD patients, respectively.

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Objective: Hepatoblastoma (HB) is the most commonly seen pediatric liver malignancy. The preliminary experiment of our research group found that cyclin dependent kinase 1 (CDK1) was upregulated in HB. By in silico analysis, long noncoding RNA (lncRNA) HAND2 antisense RNA 1 (HAND2-AS1) was determined as the research object.

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Weakly supervised group activity recognition (WSGAR) aims at identifying the overall behavior of multiple persons without any fine-grained supervision information (including individual position and action label). Traditional methods usually adopt a person-to-whole way: detect persons via off-the-shelf detectors, obtain person-level features, and integrate into the group-level features for training the classifier. However, these methods are unflexible due to serious reliance on the quality of detectors.

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  • The study explores how ions like potassium iodide (KI) and potassium chloride (KCl) affect the structure of water, focusing on low concentrations (0.10 to 0.75 mol/L).
  • Using MeV liquid electron scattering (MeV-LES), researchers analyzed ion-oxygen and oxygen-oxygen interactions to better understand hydration dynamics.
  • Results show that iodide ions significantly disrupt water's structure more than chloride ions, supporting the structure maker/breaker theory and showcasing MeV-LES as a powerful tool for studying liquid atomic structures.
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Although the survival of patients with transfusion-dependent thalassemia (TD-TM) is reportedly inferior after haploidentical hematopoietic stem cell transplantation (HSCT), the heterogeneity of transplantation approaches in studies suggests the need to assess the effect of conditioning regimen on matched and haploidentical transplantation outcomes. A novel post-transplantation cyclophosphamide (PTCy)-based approach for patients with TD-TM undergoing haploidentical HSCT was reported in our prior study. Here we aimed to retrospectively evaluate the real-world efficacy and safety of graft-versus-host disease (GVHD) prophylaxis in patients with TD-TM after HSCT from matched donors and haploidentical donors (HIDs).

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P. Y. Li () is a traditional Chinese herbal medicine that has been used for over two millennia to treat cough and expectoration.

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Since hepatic cancer incidence and mortality continue to grow worldwide, it is necessary to develop the biomimetic tumor models for drug development and tumor therapeutics. Cellular spheroids as an excellent simple 3D model can bridge the gap between 2D cell culture and live tissue. In this study, we proposed a biological methacrylated gelatin (GelMA) hydrogel-based microplatform for the massive generation of hepatocellular spheroids and downstream investigation of drug resistance.

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Digital light processing (DLP) 3D bioprinting technology has attracted increasing attention in tissue engineering in recent years. However, it still faces significant technical and operational challenges such as cell carcinogenesis caused by prolonged exposure to ultraviolet light and the presence of heavy metal ions in complex photoinitiator systems. In this study, a novel strategy is designed to introduce carbon quantum dots into visible-light-induced silk fibroin bioink as initiators (CDs/SilMA) applied for DLP 3D bioprinting technology.

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The design of a low-cost and efficient electrode material is crucial for electrochemical energy storage. Effectual utilization of polymolybdate as an electrode material for a supercapacitor is promising. Meanwhile, the coordination microenvironments of polymolybdate sho potential effects on its performance.

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Redox signaling plays a key role in skeletal muscle remodeling induced by exercise and prolonged inactivity, but it is unclear which oxidant triggers myofiber hypertrophy due to the lack of strategies to precisely regulate individual oxidants . In this study, we used tetrathiomolybdate (TM) to dissociate the link between superoxide (O) and hydrogen peroxide and thereby to specifically explore the role of O in muscle hypertrophy in C2C12 cells and mice. TM can linearly regulate intracellular O levels by inhibition of superoxide dismutase 1 (SOD1).

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Electrochemical CO reduction (ECR) to valuable chemicals and fuels using renewable energy is a promising way to reduce carbon emission. Herein, Sn-based films were electrodeposited on Ag foil surfaces (Sn/Ag-) for selective ECR to CO, where represented the concentration of SnCl in the electrodeposition bath. The Sn/Ag-20 electrode achieved a high CO faradaic efficiency of 96.

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In the past century, electron scattering has mostly served as a powerful tool to measure the microscopic structure of gases, liquids, and solids in either a static or time-resolved manner. One common basis for these works is the independent atom model, which directly relates electron scattering signals to the atomic structure of matter. In this perspective, we explore the information content of electron scattering that goes beyond the independent atom model.

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  • The study investigates whether transcranial alternating current stimulation (tACS) combined with multidisciplinary intensive rehabilitation treatment (MIRT) can improve symptoms and enhance quality of life for patients with Parkinson's disease (PWP) by modulating brain activity.
  • It is a randomized, double-blind trial involving 60 participants aged 45 to 70, assigned to either the tACS+MIRT group or a sham-tACS group, with assessments done over a 26-week period.
  • The results aim to show that tACS may boost functionality and correlate with changes in specific Parkinson’s disease measurement scores, supporting the therapeutic effects of combined treatment.
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Inflammatory bowel disease (IBD) and atherosclerosis (AS) are both common chronic inflammatory diseases with similar pathophysiological mechanisms. Some studies have shown that IBD patients are at increased risk for early atherosclerosis, myocardial infarction and venous thrombosis. Here we set up a hybrid mouse model associated with atherosclerosis and acute colitis in order to investigate the interplay of the two diseases.

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Oxidative stress in muscles is closely related to the occurrence of insulin resistance, muscle weakness and atrophy, age-related sarcopenia, and cancer. Aldehydes, a primary oxidation intermediate of polyunsaturated fatty acids, have been proven to be an important trigger for oxidative stress. However, the potential role of linoleic acid (LA) as a donor for volatile aldehydes to trigger oxidative stress has not been reported.

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  • - Hepatic reactive lymphoid hyperplasia (RLH) is a rare, benign condition that can mimic more serious liver diseases like cancer, posing challenges for diagnosis, particularly with imaging techniques and biopsies.
  • - In a case involving a 69-year-old woman, imaging suggested metastatic liver cancer, leading to surgery, but the final diagnosis revealed RLH after histopathological examination.
  • - The study emphasizes the importance of assessing specific imaging features, such as "wash-in and wash-out" patterns and diffusion on MRI, to better identify RLH in older women with isolated liver nodules and no cancer risk factors.
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