Publications by authors named "Xian Song"

Natural killer (NK) cell function is markedly impaired in patients with acute leukemia, weakening their anti-tumor immune response. However, the mechanisms underlying NK cell dysfunction are not fully understood. Here, we reveal that NK cells from patients with acute leukemia (AL-NK) exhibit significantly reduced intracellular glutathione (GSH) levels, accompanied by disrupted redox homeostasis and increased levels of mitochondrial reactive oxygen species.

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Cardiovascular digital health technologies potentially outperform traditional clinical equipment through their noninvasive, on-body, and portable monitoring with mass cardiac data beyond the confines of inpatient settings. However, existing cardiovascular wearables have difficulty with providing medical-grade accuracy with a chronically comfortable and stable patient/consumer device interface for reliable clinical decision-making. Here, we develop an intensive care unit (ICU)-grade breathable cardiac electronic skin system (BreaCARES) for real-time, wireless, continuous, and comfortable cardiac care.

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Background: Gastric cancer patients are prone to lower extremity deep vein thrombosis (DVT) after surgery, which is an important cause of death in postoperative patients. Therefore, it is particularly important to find a suitable way to predict the risk of postoperative occurrence of DVT in GC patients. This study aims to explore the effectiveness of using machine learning (ML) assisted radiomics to build imaging models for prediction of lower extremity DVT occurrence in GC patients after surgery.

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The engraftment of haematopoietic stem and progenitor cells (HSPCs), particularly in cord-blood transplants, remains challenging. Here we report the role of the corticotropin-releasing hormone (CRH) in enhancing the homing and engraftment of human-cord-blood HSPCs in bone marrow through mechanical remodelling. By using microfluidics, intravital two-photon imaging and long-term-engraftment assays, we show that treatment with CRH substantially enhances HSPC adhesion, motility and mechanical remodelling, ultimately leading to improved bone-marrow homing and engraftment in immunodeficient mice.

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Background: Malnutrition is prevalent in patients with inflammatory bowel disease (IBD); however, its ability to predict the disease activity in IBD remains unexplored. Therefore, this study aimed to explore the association between malnutrition and disease activity in IBD.

Methods: In this retrospective study, we enrolled 1006 patients diagnosed with IBD from the First Affiliated Hospital of Wenzhou Medical University from 2011 to 2022.

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Background: Programmed death ligand-1 (PD-1), as an immunotherapy target, has been increasingly used in tumour therapies. But as reactions and outcomes to PD-1 inhibitors combined with chemotherapy vary individually, it is primarily important to identify an ideal indicator for predicting the therapeutic effectiveness in individual patients. Oesophageal cancer (EC) patients often have difficulty eating due to tumour blockage of the oesophagus, leading to malnutrition and muscle loss.

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Inflammation is hypothesized to have essential functions in the development of wet age-related macular degeneration (AMD). Polymorphonuclear neutrophils (PMNs), recognized as major players in inflammation, are typically the first leukocytes to be recruited to an inflammatory site. Previous studies have identified neutrophil aggregates in the lesion site of the choroidal neovascularization model, and systemic depletion of neutrophils in adult mice is associated with reduced choroidal neovascularization (CNV) area, suggesting a pivotal role of PMNs in CNV pathogenesis.

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Article Synopsis
  • The study focuses on measuring the avidity (strength of interaction) between natural killer (NK) cells and leukemia cells to understand immune responses better.
  • The protocol includes detailed steps for isolating and purifying cells from cord blood, as well as preparing the leukemia cell line KG-1a for testing.
  • The use of an acoustic force-based z-Movi cell avidity analyzer is highlighted to detect the avidity between the NK cells and KG-1a cells.
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Background: Hepatocellular carcinoma (HCC) is a highly fatal malignant worldwide. As different expression levels of specific genes can lead to different HCC outcomes, we aimed to develop a gene signature capable of predicting HCC prognosis.

Methods: In this study, transcriptomic sequencing and relevant clinical data were extracted from public platforms.

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  • Scientists found a new way to build special chemical compounds called 3-alkylated quinoxalin-2(1)-ones using certain ingredients like alkyl carboxylic acids and alkyl iodides.
  • This method is practical, cost-effective, and works well with different types of these ingredients.
  • They discovered that a special catalyst called cobaloxime helps create tiny carbon fragments from the ingredients, making the process easier.
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Introduction: Cytomegalovirus (CMV) can cause various end-organ diseases in immunocompromised hosts, including allogeneic hematopoietic cell transplant (allo-HSCT) recipients. Interestingly, CMV viremia has been associated with various complications and poor prognosis in allo-HSCT recipients. Complications involving the central nervous system (CNS) occur in 9-14% of patients following allo-HSCT.

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  • Natural killer (NK) cell immunotherapy shows potential in treating cancer but has limited effectiveness, prompting the search for new strategies.
  • Venetoclax, a drug originally designed to inhibit BCL-2, has been found to directly activate NK cells, increasing their ability to kill acute myeloid leukemia (AML) cells in both lab and living systems.
  • The study highlights a specific NK cell subgroup sensitive to venetoclax and reveals that the drug enhances NK cell energy metabolism, contributing to improved immune responses against cancer.
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  • Researchers have developed a new type of graphene nanofibrous aerogel (GNFA) that combines high flexibility and superelasticity, solving a longstanding problem in material design.
  • These GNFAs can fully recover after extensive deformation, withstanding over 1000 cycles of 60% strain and 10,000 cycles at 90% strain, making them outperform many existing aerogels.
  • Additionally, GNFAs function as effective electrical sensors, successfully used in applications like recognizing sign language due to their high sensitivity and stable performance, paving the way for advanced wearable technology.
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Choroidal Neovascularization (CNV) is capable of inciting recurrent hemorrhage in the macular region, severely impairing patients' visual acuity. During the onset of CNV, infiltrating M2 macrophages play a crucial role in promoting angiogenesis. To control this disease, our study utilizes the RNA interference (RNAi)-based gene therapy to reprogram M2 macrophages to the M1 phenotype in CNV lesions.

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Purpose: To evaluate the changes in macular structures following subthreshold micropulse laser (SHML) treatment for chronic central serous chorioretinopathy (cCSC).

Methods: Data of 33 eyes from 31 cCSC patients treated with SHML and followed up for at least 6 months has been included in this retrospective study. Main outcome measurements include resolution of subretinal fluid (SRF) and pigment epithelial detachment (PED), the recovery of ellipsoid zone (EZ) continuity, and the foveal outer nuclear layer (ONL) thickness along with its ratio.

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Moisture and thermal comfort are critical for long-term wear. In recent years, there has been rapidly growing attention on the importance of the comfortability in wearable electronic textiles (e-textiles), particularly in fields such as health monitoring, sports training, medical diagnosis and treatment, where long-term comfort is crucial. Nonetheless, simultaneously regulating thermal and moisture comfort for the human body without compromising electronic performance remains a significant challenge to date.

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Light absorption and scattering exist in the underwater environment, which can lead to blurring, reduced brightness, and color distortion in underwater images. Polarized images have the advantages of eliminating underwater scattering interference, enhancing contrast, and detecting material information of the object in underwater detection. In this paper, from the perspective of polarization imaging, different concentrations (0.

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Cisplatin (CPT) is one of the standard treatments for hepatocellular carcinoma (HCC). However, its use is limits as a monotherapy due to drug resistance, and the underlying mechanism remains unclear. To solve this problem, we tried using canagliflozin (CANA), a clinical drug for diabetes, to reduce chemoresistance to CPT, and the result showed that CANA could vigorously inhibit cell proliferation and migration independent of the original target SGLT2.

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  • Skin electronics enable non-invasive monitoring of health signals, but traditional materials struggle with wet skin environments.
  • The development of Wet-Adaptive Electronic Skin (WADE-skin) incorporates a special adhesive layer that allows for better adherence, stretchability, and skin compatibility, addressing these challenges.
  • WADE-skin effectively records physiological data, like electrocardiograms, even during sweating or underwater, enhancing human-machine interaction experiences.
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The emergence of anti-vascular endothelial growth factor (anti-VEGF) therapy has revolutionized neovascular age-related macular degeneration (nAMD). Post-therapeutic optical coherence tomography (OCT) imaging facilitates the prediction of therapeutic response to anti-VEGF therapy for nAMD. Although the generative adversarial network (GAN) is a popular generative model for post-therapeutic OCT image generation, it is realistically challenging to gather sufficient pre- and post-therapeutic OCT image pairs, resulting in overfitting.

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  • Researchers tested an AI system that helps diagnose a serious eye problem called glaucoma using pictures of the eye from different hospitals in China.
  • They looked at how well the AI performed compared to human doctors and found that it was really accurate, around 91% in most cases.
  • The AI system worked well even when patients had other eye problems, showing it could help find glaucoma in many situations.
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Background: The triglyceride-glucose (TyG) index was significantly associated with insulin resistance (IR). Several studies have validated the effect of TyG index on cerebrovascular disease. However, the value of TyG index in patients with severe stroke requiring ICU admission remains unclear.

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Background: Hepatocellular Carcinoma (HCC) is a common malignant neoplasm with limited treatment options and poor outcomes. Thus, there is an urgent need to find sensitive biomarkers for HCC.

Methods: Gene expression and clinicopathological information were obtained from public databases, based on which a pyroptosis-related gene signature was constructed by the least absolute shrinkage and selection operator Cox regression.

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  • The study aimed to create an AI-based system for grading diabetic retinopathy (DR) using a dataset from China, focusing on its potential as a learning tool for medical students.
  • The developed system showed high diagnostic accuracy, with metrics improving when used alongside less experienced medical professionals' assessments.
  • The conclusion highlights that the AI system not only detects DR confidently but can also serve as an effective training resource for students without prior DR management experience.
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  • Uveal melanoma (UM) is a serious eye cancer that can be hard to treat, and current methods aren't very effective.
  • A new treatment using special tiny particles called NMQDs-TiCTx has been created, and it shows good results in killing UM cells without harming normal eye cells.
  • These particles work by causing the cancer cells to die in a specific way, which could lead to better treatments for UM in the future.
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