Publications by authors named "L-J Wu"

Understanding the dynamics of membrane protein-ligand interactions within a native lipid bilayer is a major goal for drug discovery. Typically, cell-based assays are used, however, they are often blind to the effects of protein modifications. In this study, using the archetypal G protein-coupled receptor rhodopsin, we found that the receptor and its effectors can be released directly from retina rod disc membranes using infrared irradiation in a mass spectrometer.

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: About half of adults with acute myeloid leukemia with normal cytogenetics (CN-AML) have mutations. There is controversy regarding their prognosis and best therapy. : We studied 150 subjects with these features using targeted regional sequencing.

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Background: The Minnesota Statewide Healthcare Coordination Center requested that the Minnesota Critical Care Working Group (CCWG) and Ethics Working Group (EWG), comprising interprofessional leaders from Minnesota's 9 largest health systems, plan and coordinate critical care operations during the COVID-19 pandemic, including the fall 2021 surge.

Research Question: Can a statewide working group collaboratively analyze real-time evidence to identify crisis conditions and to engage state leadership to implement care processes?

Study Design And Methods: The CCWG and EWG met via videoconferencing during the severe surge of fall 2021 to analyze evidence and plan for potential crisis care conditions. Five sources of evidence informed their actions: group consensus on operating conditions, federal teletracking data, the Medical Operations Coordination Center (MOCC) patient placement data, and 2 surveys created and distributed to hospitals and health care professionals.

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  • Tranexamic acid, an antifibrinolytic agent, was tested in a study on patients with intracerebral hemorrhage who had ongoing bleeding (spot signs) to assess its effect on hematoma growth when administered within 4.5 hours of onset.
  • A systematic review and meta-analysis were conducted, evaluating randomized trials comparing tranexamic acid to a placebo, specifically including 162 participants with follow-up imaging.
  • Results showed that tranexamic acid treatment did not significantly reduce hematoma growth compared to placebo, with a slightly lower growth rate in the treatment group, but overall outcomes suggested continued monitoring and assessment of safety was needed.
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Background: Veterans are disproportionately more likely to experience homelessness and unstable housing (HUH) compared with the general population. Cardiovascular disease is the leading cause of death among Veterans experiencing HUH. We aimed to understand whether HUH status among Veterans with preexisting cardiovascular disease was associated with disparities in cardiovascular care access and utilization.

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  • Cardiac ischemia/reperfusion (I/R) injury is a significant concern for heart disease, but there's currently no effective treatment to minimize this type of heart damage.
  • This study recruited patients with acute myocardial infarction to examine the impact of plasma RIPK3 levels before and after treatment, using both patient data and lab experiments on cells and mouse models.
  • Elevated RIPK3 levels post-treatment were linked to worse outcomes, and experiments showed that RIPK3 worsens heart injury by triggering inflammation, suggesting its role as a damaging molecule that could be targeted for therapy.
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  • Oncolytic adenoviruses are being studied for their ability to kill cancer cells and modulate the immune response, but their potential immunosuppressive effects need further investigation.
  • This study shows that type V adenoviruses can change the behavior of tumor-associated macrophages (TAMs) and increase regulatory T cells (Tregs) in the tumor microenvironment, which can hinder immune responses against tumors.
  • Thymosin alpha 1 (Tα1) can reprogram these macrophages to support anti-tumor activity and enhance the effectiveness of the adenovirus in fighting cancer, indicating a promising direction for future cancer therapies.
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The peptide hormone glucagon is a fundamental metabolic regulator that is also being considered as a pharmacotherapeutic option for obesity and type 2 diabetes. Despite this, we know very little regarding how glucagon exerts its pleiotropic metabolic actions. Given that the liver is a chief site of action, we performed in situ time-resolved liver phosphoproteomics to reveal glucagon signaling nodes.

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The association between anti-obesity medications (AOMs) as well as their weight-loss effects and cardiovascular outcomes need to be comprehensively investigated. We searched PubMed, Embase, the Cochrane Center Register of Controlled Trials for Studies, and Clinicaltrial.gov website from the inception to April 2024 and included 129 randomized controlled trials (RCTs) of AOMs.

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  • Point-of-care (POC) platelet function analysis can improve the management of bleeding and clotting in critical medical settings, but is not widely used due to complicated sample prep and current technology limitations.
  • The new μMEA sensor simplifies this by measuring platelet activation directly from whole blood without extra preparation, using multi-frequency impedance to provide accurate, label-free results.
  • It’s highly sensitive and can work well even with low platelet counts, making it a promising tool for various clinical applications in real-time platelet analysis.
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Background: Developing guidelines for the diagnosis and treatment of common cancers in China based on the evidence-based practice, the availability of diagnosis and treatment products, and the up-to-date advances in precision medicine is one of the basic tasks of the Chinese Society of Clinical Oncology Breast Cancer (CSCO BC) Committee.

Methods: Protocols with high evidence level and good availability are used as the Level I recommendations; protocols with relatively high evidence level but slightly lower expert consensus or with poor availability are used as the Level II recommendations; and protocols that are clinically applicable but with low evidence level are regarded as the Level III recommendations. Based on the findings of clinical research at home and abroad and the opinions of CSCO BC experts, the CSCO BC guidelines determine the levels of recommendations for clinical application.

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Context: Concurrent care allows patients to receive hospice while continuing disease-directed therapies. This treatment model is available in the Veterans Administration (VA) medical system, but its use in Veterans with heart failure (HF) is unexplored.

Objective: To compare use of advanced HF therapies 30 days posthospitalization in Veterans on hospice versus not on hospice following admission for HF exacerbation.

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  • - Drp1, a protein involved in mitochondrial fission, contributes to the increase in pulmonary artery smooth muscle cells in pulmonary arterial hypertension (PAH), and researchers developed a new inhibitor called Drpitor1a to test its effectiveness.
  • - Experiments showed that Drpitor1a successfully inhibited Drp1 activity, reduced cell proliferation and increased apoptosis in PAH cells, while not affecting normal cells or causing toxicity.
  • - The findings suggest that Drpitor1a could be a viable treatment for PAH by targeting Drp1, with notable differences in effectiveness observed between male and female subjects.
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Fuchs endothelial corneal dystrophy (FECD) stands as the most prevalent primary corneal endothelial dystrophy worldwide, posing a significant risk to corneal homeostasis and clarity. Corneal endothelial cells exhibit susceptibility to oxidative stress, suggesting a nuanced relationship between oxidant-antioxidant imbalance and FECD pathogenesis, irrespective of FECD genotype. Given the constrained availability of corneal transplants, exploration into non-surgical interventions becomes crucial.

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  • The evolution of SARS-CoV-2 variants highlights the need for multivalent vaccines, leading to the development of SCTV01E, a tetravalent COVID-19 vaccine targeting variants Alpha, Beta, Delta, and Omicron BA.1.
  • A double-blind placebo-controlled trial showed SCTV01E had a vaccine efficacy of 69.4% against COVID-19 seven days post-vaccination, with higher efficacy rates in preventing symptomatic and all infections at 14 days.
  • The vaccine demonstrated a significant neutralizing antibody response against Omicron BA.5 and had mild reactogenicity, indicating its potential effectiveness against emerging SARS-CoV-2 variants.
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Proteoforms, which arise from post-translational modifications, genetic polymorphisms and RNA splice variants, play a pivotal role as drivers in biology. Understanding proteoforms is essential to unravel the intricacies of biological systems and bridge the gap between genotypes and phenotypes. By analysing whole proteins without digestion, top-down proteomics (TDP) provides a holistic view of the proteome and can decipher protein function, uncover disease mechanisms and advance precision medicine.

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The article "MiR-1294 acts as a tumor suppressor in clear cell renal cell carcinoma through targeting HOXA6", by W. Pan, L.-J.

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  • This study evaluated the effectiveness and safety of combining bevacizumab with carboplatin and paclitaxel (CP) as a first-line treatment for stage III/IV ovarian cancer in Chinese patients after surgery.
  • Results showed that patients receiving bevacizumab + CP had a median progression-free survival (PFS) of 22.6 months, significantly longer than the 12.3 months for those on placebo + CP.
  • The safety profile indicated that treatment-related severe side effects were more common in the bevacizumab group (94%) compared to the placebo group (68%), but the drug's overall safety was consistent with previous findings.
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Background: Hemodynamic impairment of blood pressure may play a crucial role in determining the mechanisms of stroke in symptomatic intracranial atherosclerotic stenosis). We aimed to elucidate this issue and assess the impacts of modifications to blood pressure on hemodynamic impairment.

Methods: From the Third China National Stroke Registry III, computed fluid dynamics modeling was performed using the Newton-Krylov-Schwarz method in 339 patients with symptomatic intracranial atherosclerotic stenosis during 2015 to 2018.

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Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is a benchmark hole-transporting (-type) polymer that finds applications in diverse electronic devices. Most of its success is due to its facile synthesis in water, exceptional processability from aqueous solutions, and outstanding electrical performance in ambient. Applications in fields like (opto-)electronics, bioelectronics, and energy harvesting/storage devices often necessitate the complementary use of both -type and -type (electron-transporting) materials.

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Background: A rapid and precise etiological diagnosis is crucial for the effective treatment of bloodstream infection (BSI). In this study, the performance of probe capture-based targeted next-generation sequencing (tNGS) was compared to that of blood culture and metagenomic next-generation sequencing (mNGS) in detecting potential pathogens in patients with BSI.

Methods: A total of 80 patients with suspected BSI were prospectively enrolled from 24 November 2023 to 30 December 2023 at Zhongshan Hospital, Shanghai, China.

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Purpose: To evaluate whether the modified suture-button Latarjet procedure with coracoacromial ligament (CAL) and pectoralis minor (PM) preservation could achieve excellent outcomes at the 2-year follow-up.

Methods: During January 2019 to January 2021, the data of patients who underwent modified suture-button Latarjet with CAL and PM preservation in our department were collected. The glenoid bone loss of these patients was greater than 20% or greater than 10% with high demands for exercise.

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  • Atmospheric pressure dielectric barrier discharge (DBD) plasma is an innovative technique for cleaning air in public spaces, but the effects of power supply on its disinfection abilities are not well understood.
  • A study used a nanosecond pulsed power supply with a specific DBD setup to investigate how different settings and environmental factors influenced the effectiveness of bacterial inactivation.
  • Results showed that higher discharge power and optimal humidity levels significantly improved air disinfection efficiency, achieving around 99% effectiveness at a relative humidity of 50%-60%.
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Arthroscopic repair of Bankart injury is the first choice for the treatment of anterior shoulder instability. How to avoid recurring shoulder joint dislocation is a challenge, especially when combined with Hill-Sachs lesions. The arthroscopy technology allows for broader vision and less surgical trauma but is limited by a smaller operating space.

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Background: Time-restricted eating (TRE) lowers body weight in many studies. Whether TRE induces weight loss independent of reductions in calorie intake, as seen in rodent studies, is unknown.

Objective: To determine the effect of TRE versus a usual eating pattern (UEP) on body weight in the setting of stable caloric intake.

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