Publications by authors named "Qi Quan"

Photobiomodulation (PBM) has demonstrated potential in promoting peripheral nerve regeneration. However, there is a limited and inconclusive study on the application of light-emitting diode (LED) for nerve injury repair. In this study, we designed an 807-nm LED device with high luminous uniformity to investigate the effects of LED-based PBM on peripheral nerve injury repair.

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Background: Health effects of ultrafine particles (UFPs) and their interactions with temperature are less studied. We investigated the risks of UFPs concentrations and extreme temperatures on hospitalizations for high-burden diseases (HBDs) in New York State (NYS).

Methods: This case-crossover study included hospitalizations for HBDs that contain ischemic heart diseases, diabetes, stroke, kidney diseases, and depression using NYS Hospital Discharge Data (2013-2018).

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Tendon, a connective tissue structure, serves the crucial role of transmitting force between muscles and bones. However, tendon injury repair continues to pose a significant challenge in clinical settings. In this study, we utilized single-cell RNA sequencing to delve into the cell populations and signaling pathways that are integral to tendon healing.

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We herein report the efficient synthesis of peptide-benzazepine conjugates from Lys-based peptides and acroleins via Rh(III)-catalyzed double C-H activation. This reaction features mild reaction conditions, broad scope, high atom and step economies, and excellent chemo- and site selectivity. The synthetic utility of this strategy is further demonstrated by scale-up experiments and product derivatizations, including diverse late-stage ligations based on the aldehyde moiety.

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Difucosyllactose (DFL), an important kind of fucosylated human milk oligosaccharides (HMOs), has garnered considerable attention due to its excellent physiological activities in infants. Previously, we achieved biosynthesis of DFL; however, substantial residual intermediates of fucosyllactoses (FL) were detected. In this study, DFL biosynthesis was optimized, and residual FL were reduced by regulating metabolic pathways.

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Since the seminal report by Adachi and co-workers in 2012, there has been a veritable explosion of interest in the design of thermally activated delayed fluorescence (TADF) compounds, particularly as emitters for organic light-emitting diodes (OLEDs). With rapid advancements and innovation in materials design, the efficiencies of TADF OLEDs for each of the primary color points as well as for white devices now rival those of state-of-the-art phosphorescent emitters. Beyond electroluminescent devices, TADF compounds have also found increasing utility and applications in numerous related fields, from photocatalysis, to sensing, to imaging and beyond.

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  • The study analyzed the relationship between certain types of particulate matter (PM) and hospitalizations or emergency visits for asthma and COPD in New York before and after implementing stricter automobile emission controls.
  • Using statistical methods, it identified that increases in specific PM sources like spark-ignition emissions and secondary sulfates were linked to higher rates of asthma emergency visits, while diesel emissions had a negative association.
  • After the new emission regulations were put in place, there was a decrease in COPD hospital admissions related to some PM sources, but asthma visits generally increased, highlighting the need for further investigation into these trends.
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  • Researchers developed a method using Rh(III) catalysts to create fluorescent peptides by activating C-H bonds in Phe-based peptides with alkynes.
  • The process showcases a wide range of substrates, efficient use of materials, and precision in target selection.
  • The resulting fluorescent compounds have strong emission properties and low toxicity, making them suitable for applications in biological studies, specifically targeting lysosomes and mitochondria in live cells.
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Feature selection (FS) constitutes a critical stage within the realms of machine learning and data mining, with the objective of eliminating irrelevant features while guaranteeing model accuracy. Nevertheless, in datasets featuring a multitude of features, choosing the optimal feature poses a significant challenge. This study presents an enhanced Sand Cat Swarm Optimization algorithm (MSCSO) to improve the feature selection process, augmenting the algorithm's global search capacity and convergence rate via multiple innovative strategies.

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Nectin-4 is a cell adhesion molecule which has gained more and more attention as a therapeutic target in cancer recently. Overexpression of Nectin-4 has been observed in various tumors, including breast cancer, and is associated with tumor progression. Enfortumab vedotin(EV)is an antibody-drug conjugate (ADC) targeting Nectin-4, which has been approved by FDA for the treatment of urothelial carcinoma.

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  • Immunotherapy can be effective for cancer, but many osteosarcoma patients don't benefit from it due to the unique characteristics of their tumor environment, like hypoxia and lactate metabolism, which may predict treatment outcomes.
  • Researchers identified a set of 8 genes linked to these environmental factors and created a nomogram to assess patient risk; those with high-risk scores showed worse prognoses and a lack of immune cell activity in tumors.
  • Analysis indicated that high-risk patients had lower levels of essential immune cells (e.g., Cytotoxic T cells) and immune markers, suggesting they are less likely to respond well to immunotherapy.
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A pivotal approach in engineering artificial peripheral nerve sheaths encompasses the augmentation of the regenerative microenvironment via the manipulation of Schwann cells (SCs). Our investigation employed single-cell sequencing analysis to elucidate the potential functions of Schwann cells and the Wnt pathway in facilitating peripheral nerve regeneration. studies showed that activating the Wnt signaling pathway promotes the transition to repair SCs, boosting their growth, movement, and immune functions.

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Introduction: This study leverages bioinformatics and medical big data to integrate datasets from the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA), providing a comprehensive overview of immunogenic cell death (ICD)-related gene expression in colorectal cancer (CRC). The research aims to elucidate the molecular pathways and gene networks associated with ICD in CRC, with a focus on the therapeutic potential of cell death inducers, including ferroptosis agents, and their implications for precision medicine.

Methods: We conducted differential expression analysis and utilized advanced bioinformatic techniques to analyze ICD-related gene expression in CRC tissues.

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Introduction: We described how COVID-19 fatality and symptoms varied by dominant variant and vaccination in the US.

Methods: Using the Restricted Access Dataset from the US CDC (1/1/2020-10/20/2022), we conducted a cross-sectional study assessing differences in COVID-19 deaths, severity indicators (hospitalization, ICU, pneumonia, abnormal X-ray, acute respiratory distress syndrome, mechanical ventilation) and 12 mild symptoms by dominant variant/vaccination periods using logistic regression after controlling for confounders.

Results: We found the highest fatality during the dominant periods of Wild (4.

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  • Cellulose nanofiber (CNF) is commonly used in MXene film electrodes to enhance mechanical properties for supercapacitors, but it negatively affects capacitance due to its non-electrochemical activity.
  • The study introduces lignin-containing cellulose fibers (LCNF) as a replacement for CNF, significantly improving the mechanical strength of MXene film electrodes while also enhancing capacitance through the lignin's reversible chemical properties.
  • The resulting supercapacitor exhibits an impressive energy density of 1.8 Wh/g and maintains excellent rate capability, effectively balancing mechanical strength and electrochemical performance.
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Prior studies reported excess rates (ERs) of cardiorespiratory events associated with short-term increases in PM concentrations, despite implementation of pollution-control policies. In 2017, Federal Tier 3 light-duty vehicle regulations began, and to-date there have been no assessments of population health effects of the policy. Using the NYS Statewide Planning and Research Cooperative System (SPARCS) database, we obtained hospitalizations and ED visits with a principal diagnosis of asthma or chronic obstructive pulmonary disease (COPD) for residents living within 15 miles of six urban PM monitoring sites in NYS (2014-2019).

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Background: In recent years, there has been a surge in media reports on articles being retracted after publication. This issue has gained significant attention, particularly due to the consecutive large-scale retractions carried out by renowned international publishers, which have aroused widespread concern in the society.

Objective: To analyze the data of retracted articles and retraction trends.

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Background: While limited studies have evaluated the health impacts of thunderstorms and power outages (POs) separately, few have assessed their joint effects. We aimed to investigate the individual and joint effects of both thunderstorms and POs on respiratory diseases, to identify disparities by demographics, and to examine the modifications and mediations by meteorological factors and air pollution.

Methods: Distributed lag nonlinear models were used to examine exposures during three periods (i.

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  • Intimal sarcoma of the inferior vena cava (IVC) is a rare cancer with vague symptoms and no established treatment protocols.
  • A 54-year-old female patient was diagnosed with this cancer after presenting symptoms like cough and hemoptysis and was found to have multiple lung metastases and cancer in the IVC.
  • Treatment involved initial chemotherapy with gemcitabine and docetaxel, followed by immunotherapy with tislelizumab, resulting in disease stabilization.
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Recent advancements in neuroimaging have illustrated that anterior cruciate ligament (ACL) injuries could impact the central nervous system (CNS), causing neuroplastic changes in the brain beyond the traditionally understood biomechanical consequences. While most of previous functional magnetic resonance imaging (fMRI) studies have focused on localized cortical activity changes post-injury, emerging research has suggested disruptions in functional connectivity across the brain. However, these prior investigations, albeit pioneering, have been constrained by two limitations: a reliance on small-sample participant cohorts, often limited to two to three patients, potentially limiting the generalizability of findings, and an adherence to region of interest based analysis, which may overlook broader network interactions.

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Although previous studies have shown increased health risks of particulate matters, few have evaluated the long-term health impacts of ultrafine particles (UFPs or PM, ≤ 0.1 µm in diameter). This study assessed the association between long-term exposure to UFPs and mortality in New York State (NYS), including total non-accidental and cause-specific mortalities, sociodemographic disparities and seasonal trends.

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Skin wrinkles result from intrinsic aging processes and extrinsic influences, including prolonged exposure to ultraviolet radiation and tobacco smoking. Hence, the identification of wrinkles holds significant importance in skin aging and medical aesthetic investigation. Nevertheless, current methods lack the comprehensiveness to identify facial wrinkles, particularly those that may appear insignificant.

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Background: Gliomas, known for their complex and aggressive characteristics, are deeply influenced by the tumor microenvironment. Matrix metalloproteinases (MMPs) play a vital role in shaping this environment, presenting an opportunity for novel treatment strategies.

Methods: We collected six bulk RNA datasets, one single-cell RNA sequencing (scRNA-seq) dataset, and gene sets related to Matrix Metalloproteinases (MMPs), Endothelial-Mesenchymal Transformation (EndMT), and sprouting angiogenesis.

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Purpose: The specific risk factors of metastatic and nonmetastatic esophageal neuroendocrine carcinoma (NEC) are still uncertain. Whether primary site surgery is necessary for all patients with esophageal NEC is unknown.

Methods: Patients with esophageal NEC in the Surveillance, Epidemiology, and End Results (SEER) database from 2004 to 2014 were selected.

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Background: To provide data on the safety and efficacy of a combination chemotherapy regimen consisting of S-1, oxaliplatin, and irinotecan (SOXIRI) as a first-line therapy in unresectable pancreatic ductal adenocarcinoma (UPDA) patients.

Methods: Patients with UPDA and no prior treatment chemotherapy in the UPDA setting were enrolled. The primary endpoint was the objective response rate (ORR).

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