Publications by authors named "Yisi Liu"

The development of carbon-encapsulated alloy catalysts, through a rational design that integrates highly active Me-N-C sites, is essential for improving the reaction kinetics of both oxygen reduction (ORR) and oxygen evolution reactions (OER). This advancement is pivotal for the progression of efficient rechargeable zinc-air batteries (RZABs). In this study, we investigates a CoNi alloy decorated N-doped carbon nanotube (CoNi-NCNT) electrocatalyst using a dual-ligand strategy.

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Background: Fine particulate matter (PM) exposure is an important environmental risk for maternal and children's health, with peak exposures especially those derived from primary combustion hypothesized to pose greater risk. Identifying PM peaks and their contributions to personal exposure remains challenging. This study measured personal PM exposure, characterized primary combustion peaks, and investigated their determinants during and after pregnancy and among Hispanic women in Los Angeles, CA.

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  • - Current synthetic scaffolds struggle to repair torn tendon tissues due to their inability to replicate the important biological and mechanical features of these tendons.
  • - Researchers created a porous scaffold using electrospun poly(l-lactide) fibers and a gas foaming technique, allowing for a structure that retains crimped fiber characteristics.
  • - The newly developed scaffolds, enhanced with a decellularized tendon matrix, effectively support tendon stem cell growth and may be an effective option for treating acute tendon injuries.
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Carnosine dipeptidase 1 (CNDP1), an enzyme integral to the hydrolysis of dipeptides containing histidine, plays an indispensable role in myriad physiological processes, including hydrolysis of proteins, maturation of specific biochemical functionalities within proteins, tissue regeneration, and regulation of cell cycle. However, the implications of CNDP1 in oncogenesis and its prognostic value are not yet fully elucidated. Initially, we procured the GSE40367 dataset from the Gene Expression Omnibus and established a protein-protein interaction network.

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Smart drug delivery systems (DDSs) that respond to, interact with, or are actuated by biological signals or pathological abnormalities (, the tumor microenvironment) for controllable drug release are appealing therapeutic platforms for cancer treatment. Owing to their inherent self-assembled nature, nucleic acids have emerged as programmable materials for the development of multifunctional structures. In response to external environmental stimuli, DNA response elements can serve as switches to trigger conformational changes in DNA structures.

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  • - The study analyzes preeclampsia outcomes in different US regions, focusing on complications and management of the condition based on data from The Preeclampsia Registry which includes mostly White women (92%) across various regions (Northeast, Midwest, South, and West).
  • - Results reveal that women in the South and Midwest had the highest maximum systolic blood pressure during pregnancy, with Southern women receiving more pre-pregnancy antihypertensives and antenatal steroids, and delivering earlier than their counterparts in other regions.
  • - Regional differences also showed that women in the South experienced higher rates of complications like elevated liver enzymes, and more severe conditions like renal complications and hemolysis were noted in women from the
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Microvascular invasion (MVI) is an adverse prognostic indicator of tumor recurrence after surgery for hepatocellular carcinoma (HCC). Therefore, developing a nomogram for estimating the presence of MVI before liver resection is necessary. We retrospectively included 260 patients with pathologically confirmed HCC at the Fifth Medical Center of Chinese PLA General Hospital between January 2021 and April 2024.

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The effect of stress on risk-taking or risk-averse behavior in decision-making has been inconclusive in previous research, with few studies revealing the underlying neural mechanisms. This study employed event-related potentials technique and combined a social cold pressor assessment test with a mental arithmetic task to induce stress responses, aiming to investigate the influence of exogenous stress on the risk decision-making process. Stress induction results indicated that, in addition to raising heart rate and blood pressure, stress responses were accompanied by enhanced negative emotions, diminished positive emotions, and alterations in neural activity.

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Photocatalytic technology is a novel approach that harnesses solar energy for efficient energy conversion and effective pollution abatement, representing a rapidly advancing field in recent years. The development and synthesis of high-performance semiconductor photocatalysts constitute the pivotal focal point. Oxygen vacancies, being intrinsic defects commonly found in metal oxides, are extensively present within the lattice of semiconductor photocatalytic materials exhibiting non-stoichiometric ratios.

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Purpose: The purpose of this study was to investigate immunological variations between a group that received the hepatitis B vaccine and a non-vaccine group. We focused on a cohort that achieved HBsAg seroclearance after Peg-IFNα treatment of CHB.

Methods: We enrolled twenty-eight individuals who achieved HBsAg seroclearance after Peg-IFNα treatment.

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Background: Breast cancer patients experienced heightened anxiety during the pandemic. Also, modifications to clinical trial activities allowing for virtual platforms, local assessments, and greater flexibility were introduced to facilitate participation. We sought to evaluate the association between pandemic-related anxiety and willingness to participate in trials and how pandemic-era modifications to trial activities affect the decision to participate.

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Backgrounds: The intestinal development in early life is profoundly influenced by multiple biological components of breast milk, in which milk-derived extracellular vesicles (mEVs) contain a large amount of vertically transmitted signal from the mother. However, little is known about how maternal fiber-rich diet regulates offspring intestinal development by influencing the mEVs.

Results: In this study, we found that maternal resistant starch (RS) consumption during late gestation and lactation improved the growth and intestinal health of offspring.

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  • The study explored how various factors influence parents' support for in-school COVID-19 mitigation strategies, using data from 567 parents of elementary and middle school students in Maryland.
  • It found that acceptance of these strategies was higher among parents with Black children, those who received the COVID-19 vaccine, and those identifying as Democrats or Independents compared to Republicans.
  • Additionally, positive perceptions of school mitigation efforts, such as effective communication and a robust response to COVID-19, significantly correlated with parents’ acceptance, indicating that schools play a crucial role in shaping public health attitudes.
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Background: Acute severe hepatitis with unknown aetiology in children (ASHep-UA) has become a global health alert. This article reported clinicopathological characteristics of 3 probable ASHep-UA cases.

Methods: We respectively collected serological data and liver biopsies of 3 suspected cases of ASHep-UA.

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Background: We studied the pattern of herbal and dietary supplement (HDS) use in patients with chronic liver disease (CLD) during the first year of the COVID-19 pandemic.

Methods: A questionnaire/survey was sent to hepatology patients with CLD under the care of hepatologists at Johns Hopkins University School of Medicine.

Results: The 5 most taken dietary supplements during the pandemic included vitamin B12 (27.

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Osteoarthritis (OA) affects numerous patients worldwide, and there are no approved disease-modifying drugs. Repurposing FDA-approved small molecular drugs could be a promising alternative strategy to treat OA. Disulfiram (DSF), a clinically approved drug for treatment of alcoholism, inhibits inflammasome activation and exhibits a protective role in interleukin-1β-induced cardiac injury.

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Hepatitis B Surface Antigen (HBsAg) seroclearance is the highest treatment goal recommended by the current guidelines for hepatitis B. Levels of antibodies to HBsAg (anti-HBs) are strongly associated with HBsAg recurrence, but hepatitis B vaccination may increase the anti-HBs seroconversion rate and reduce recurrence. We conducted a retrospective clinical study to ascertain the effect of this vaccination on the seroconversion rate and levels of protective anti-HBs after HBsAg.

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This retrospective cohort study aimed to identify the risk factors associated with postoperative wound infections in patients undergoing open reduction and internal fixation for tibial plateau fractures. The study was conducted between January 2019 and December 2022, with stringent inclusion and exclusion criteria. Data were collected from the Electronic Health Record system, including demographic information, lifestyle habits, comorbid conditions and surgical variables like preoperative American Society of Anesthesiologists (ASA) scores.

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Background: Matrix metalloproteinases (MMPs) are a diverse set of enzymes associated with inflammation. MMP-9 is of particular interest because it has been associated with autoimmune and cardiopulmonary disorders, tobacco smoking, and obesity, prevalent in psychiatric populations.

Methods: Sensitive enzyme immunoassays measured MMP-9 in blood samples from 1121 individuals (mean age = 35.

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Elimination of specific enteropathogenic microorganisms is critical to gut health. However, the complexity of the gut community makes it challenging to target specific bacterial organisms. Accumulating evidence suggests that various foods can change the abundance of intestinal bacteria by modulating prophage induction.

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Article Synopsis
  • The study aimed to find out what influences parents' trust in those providing COVID-19 guidelines and how that trust relates to vaccination rates among themselves and their children.
  • Researchers conducted a survey in Maryland, involving 567 parents of elementary and middle school students, who rated their trust in various sources of COVID-19 information.
  • Results showed that doctors were the most trusted messengers, and higher trust in doctors significantly increased the likelihood of both parent and child getting vaccinated, highlighting the importance of understanding trust dynamics in public health messaging.
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Background: L-arabinose has anti-inflammatory and metabolism-promoting properties, and macrophages participate in the alleviation of inflammation; however, the mechanism by which they contribute to the anti-inflammatory effects of L-arabinose is unknown.

Objectives: To investigate the involvement of macrophages in the mitigation of L-arabinose in an intestinal inflammation model induced by lipopolysaccharide (LPS).

Methods: Five-week-old male C57BL/6 mice were divided into 3 groups: a control and an LPS group that both received normal water supplementation, and an L-arabinose (ARA+LPS) group that received 5% L-arabinose supplementation.

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Web-based survey data collection has become increasingly popular, and limitations on in-person data collection during the COVID-19 pandemic have fueled this growth. However, the anonymity of the online environment increases the risk of fraudulent responses provided by bots or those who complete surveys to receive incentives, a major risk to data integrity. As part of a study of COVID-19 and the return to in-person school, we implemented a web-based survey of parents in Maryland between December 2021 and July 2022.

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Introduction: Recombinant adeno-associated viruses (rAAVs) are widely used in genetic therapeutics. AAV5 has shown superior transduction efficiency, targeting neurons and glial cells in primate brains. Nonetheless, the comprehensive impact of AAV5 transduction on molecular and behavioral alterations remains unexplored.

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