Publications by authors named "Xuemei Luo"

Improving degradation efficiency of activated sludge towards bisphenol A (BPA) is related to water safety. A hydrogel immobilized bacteria@metal-organic-frameworks (im-SQ-2@MOFs) was synthesized previously, which was a composite formed by metal organic frameworks adhering to BPA degrading bacteria. Accordingly, this study added im-SQ-2@MOFs as enhancer to augment the BPA degradation ability of activated sludge.

View Article and Find Full Text PDF

Nitriles exhibit acute cytotoxicity to human and animal cells. Nitrilase is a green biocatalyst that can directly convert nitrile into nontoxic carboxylic acids and ammonia. However, the nitrilases capable of degrading 3-butenenitrile and 4-pentenenitrile derived from glucosinolate present in rapeseed meals are still limited.

View Article and Find Full Text PDF

Objectives: This study aimed to investigate the associated factors predicting 30-day mortality of carbapenem-resistant Gram-negative bacilli (CR-GNB) infections, with focus on polymyxin B AUC/MIC.

Methods: This prospective cohort study included patients with CR-GNB infections from January 2022 to January 2024. The primary outcome was 30-day mortality.

View Article and Find Full Text PDF

Understanding how subcellular structures and events shape tissue-wide phenomena remains a central challenge in biology. We present Multiscale Cleared Tissue Axially Swept Light-Sheet Microscopy (MCT-ASLM), a platform combining cm-scale imaging with targeted high-resolution interrogation of intact tissues in human-guided or autonomous modes. Capable of capturing fields of view up to 21 mm at micron-scale resolution, MCT-ASLM can seamlessly transition to submicron (~300 nm) isotropic resolution for targeted imaging.

View Article and Find Full Text PDF

Objectives: To assess the pharmacokinetics and pharmacodynamics of imipenem in a retrospective cohort of hospitalized Chinese older patients.

Methods: A population pharmacokinetic (PPK) model was constructed utilizing a nonlinear mixed-effects modeling approach. The final model underwent evaluation through bootstrap resampling and visual predictive checks.

View Article and Find Full Text PDF

Hepatocellular carcinoma (HCC) represents the most prevalent form of primary liver cancer and has a high mortality rate. Caspase-8 plays a pivotal role in an array of cellular signaling pathways and is essential for the governance of programmed cell death mechanisms, inflammatory responses, and the dynamics of the tumor microenvironment. Dysregulation of caspase-8 is intricately linked to the complex biological underpinnings of HCC.

View Article and Find Full Text PDF

Rapeseed meal is severely restricted in its utilization as unconventional animal feed due to anti-nutritive compounds, such as glucosinolate, that are degraded to toxic nitriles such as 3-butenenitrile and 4-pentenenitrile in animals. Few studies on nitrilases that can degrade glucosinolate-derived nitriles have been reported thus far. In the present study, a nitrilase gene from was over-expressed in and the purified recombinant nitrilase rGiNIT showed specific activities of 134.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigated the use of Pseudomonas sp. immobilized on yak dung biochar (YDBC600) to degrade toxic butyl xanthate (BX) in mining wastewater, highlighting the combined effectiveness of microbial activity and biochar adsorption.
  • Optimal BX degradation occurred at 30 °C and a pH of 5.0, with the biochar enhancing the bacterial performance due to its high surface area and favorable adsorption properties.
  • The treatment significantly reduced BX and its harmful by-products, suggesting that this method could be a sustainable solution for managing BX contamination in mining environments.
View Article and Find Full Text PDF
Article Synopsis
  • The study used bibliometric analysis to map and understand trends in research around the connection between vitamin D and obesity from 2001 to 2021.
  • A total of 4,454 articles were reviewed, with the US leading in publications, particularly in the fields of nutrition and dietetics, highlighting key funding sources like the Department of Health and Human Services.
  • The research identified significant terms associated with the topic and suggests future areas of exploration, including the effects of obesity on vitamin D levels and related health issues.
View Article and Find Full Text PDF

Rapid socio-economic development has led to many water environmental issues in small watersheds such as non-compliance with water quality standards, complex pollution sources, and difficulties in water environment management. To achieve a quantitative evaluation of water quality, identify pollution sources, and implement refined management in small watersheds, this study collected monthly seven water quality indexes of four monitoring points from 2010 to 2023, and ten water quality indexes of 23 sampling points in the Shiting River and Mianyuan River which are tributaries of the Tuojiang River Basin. Then, water quality evaluation and pollution source analysis were conducted from both temporal and spatial perspectives using the Water Quality Index (WQI) method, the Absolute Principal Component Scores/Multiple Linear Regression (APCS-MLR) method, and the Positive Matrix Factorization (PMF) receptor modeling technique.

View Article and Find Full Text PDF
Article Synopsis
  • A study compared the safety and effectiveness of apixaban and low-molecular-weight heparins (LMWHs) for preventing recurrent venous thromboembolism (VTE) in cancer patients undergoing extended anticoagulation treatment.
  • Using a claims database, researchers analyzed 13,564 patients on apixaban and 2,808 on LMWH, focusing on bleeding incidents and recurrent VTE rates over a 3-month minimum treatment period.
  • Results showed that patients on apixaban experienced significantly lower rates of recurrent VTE and major bleeding compared to those on LMWH, suggesting apixaban may be a safer and more effective choice for extended treatment in this population.
View Article and Find Full Text PDF

Filamentous fungi can produce raw-starch-degrading enzyme, however, regulation of production of raw-starch-degrading enzyme remains poorly understood thus far. Here, two novel transcription factors raw-starch-degrading enzyme regulator D (RsrD) and raw-starch-degrading enzyme regulator E (RsrE) were identified to participate in the production of raw-starch-degrading enzyme in . Individual knockout of and in the parental strain Δ resulted in 31.

View Article and Find Full Text PDF

Filamentous fungi produce polysaccharide-degrading enzymes, which is controlled by poorly understood transcriptional circuits. Here we show that a circuit comprising RsrC-RsrA-RsrB (Rsr: production of raw-starch-degrading enzyme regulator) that positively regulates production of raw starch-degrading enzymes in Penicillium oxalicum. Transcription factor (TF) RsrA is essential for biosynthesis of raw starch-degrading enzymes.

View Article and Find Full Text PDF
Article Synopsis
  • * A 32-year-old male experienced acute nephrotoxicity and neurotoxicity after resuming Tacrolimus following NMV/r treatment, highlighting the inhibitory effects of ritonavir on liver enzymes and drug transporters.
  • * This case illustrates the need for vigilance regarding DDIs, the importance of pharmacist involvement in treatment decisions, and suggests the potential for personalized therapy in managing COVID-19 in patients with compromised immune systems.
View Article and Find Full Text PDF
Article Synopsis
  • Researchers have developed innovative crack-based flexible strain sensors that are ultra-sensitive to tiny strains, ideal for environmental sensing and monitoring motion in small robots.
  • A new method using fatigue loading creates stable crack patterns in the sensors without compromising their durability, achieving high sensitivity (gauge factor of 5798) and impressive cyclic stability (15,000 cycles).
  • Additionally, a leaf-like mechanosensor was created from these strain sensors, demonstrating excellent performance in airflow detection with a quick response time, showcasing its potential for use in advanced reconnaissance robots.
View Article and Find Full Text PDF

In this study, we identified FOXP3 as a transcription factor for lncRNA SNHG1, which exerts a significant protective role against cardiomyocyte hypertrophy. Through DNA-pull down experiments and ChIP analysis, we confirmed that FOXP3 could bind to the promoter of SNHG1. Luciferase reporter and RT-qPCR experiments validated that FOXP3 overexpression promoted SNHG1 expression in cardiomyocytes.

View Article and Find Full Text PDF
Article Synopsis
  • Biapenem is a carbapenem antibiotic primarily used in Asia to treat various bacterial infections in adults and children, but there is limited information on its pharmacokinetics in septic patients.
  • The study evaluated biapenem's pharmacokinetics using data from 317 septic patients at Nanjing Drum Tower Hospital and identified a two-compartment model to describe the antibiotic's behavior in the body.
  • Findings suggest that the current dosage of 1.2 g per day may not be sufficient to achieve optimal therapeutic levels in septic patients; a recommended dosage of 600 mg every 6 hours appears more effective.
View Article and Find Full Text PDF
Article Synopsis
  • - The study explores the unclear link between major depressive disorder (MDD) and thyroid diseases, examining the influence of thyroid function across different ancestries.
  • - Using genome-wide data and Mendelian randomization, results indicate a significant causal impact of MDD on conditions like hypothyroidism and hashimoto's thyroiditis in individuals of European ancestry, with alcohol intake and antidepressant use identified as mediating factors.
  • - No bidirectional causal relationship was found between thyroid function and MDD in both European and East Asian ancestries, suggesting that while MDD affects thyroid disease risk, thyroid health does not influence depression risk.
View Article and Find Full Text PDF

Background: Because the cases are quite scarce, we aimed to review cases of foreign body impaction penetrating the neck through the esophagus to analyze the characteristics of these cases. The open surgery skills of the surgeon, the treatment procedure and the surgeons' experience in the rare diseases were analyzed.

Methods: We collected and analyzed all cases from 2015-2020 in our hospital.

View Article and Find Full Text PDF
Article Synopsis
  • This study investigates the real-world risks of stroke/systemic embolism (SE) and major bleeding (MB) among patients with non-valvular atrial fibrillation (NVAF) who switch from warfarin to direct oral anticoagulants (DOACs) like apixaban, dabigatran, and rivaroxaban.
  • Data was collected from U.S. commercial claims databases between 2012 and 2019, focusing on NVAF patients switching from warfarin to DOACs within 90 days, and employing statistical models to assess risks.
  • Findings suggest that apixaban offers a significantly lower risk of stroke/SE and MB compared to dabigatran, while having a similar
View Article and Find Full Text PDF

Microorganisms are highly sensitive to toxic metal pollution and play an important role in the material cycling and energy flow of the water ecosystem. Herein, 13 sediment samples from Junchong Reservoir (Guangxi Province, China) were collected in December 2021. The spatial distribution of pollution levels for toxic metals and the effects of toxic metals on the composition, functional characteristics, and metabolism of microorganisms were investigated.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the effectiveness of the Head-up tilt test (HUTT) in diagnosing pediatric vasovagal syncope by comparing two testing methods: basic head-up tilt (BHUT) and sublingual nitroglycerine head-up tilt (SNHUT).
  • A retrospective analysis was conducted on data from 2,513 children, revealing that those in the BHUT group showed higher baseline characteristics such as age, height, weight, and various blood pressure measurements compared to the SNHUT group.
  • Findings indicate that having previous syncopal episodes increases the likelihood of a positive BHUT result, suggesting that syncope is a significant risk factor for diagnosing this condition in children.
View Article and Find Full Text PDF

Study Objective: This study aimed to identify factors associated with delayed oral anticoagulant (OAC) treatment initiation among atrial fibrillation (AF) patients in United States (US) clinical practice.

Participants: Medicare beneficiaries newly diagnosed with AF without moderate-to-severe mitral stenosis or a mechanical heart valve, were aged ≥65 years and prescribed OAC on or after 10/1/2015 through 2019 were included. Delayed and early OAC initiation were defined as >3 months and 0-3 months initiation from first AF diagnosis, respectively.

View Article and Find Full Text PDF

A PHP Error was encountered

Severity: Warning

Message: fopen(/var/lib/php/sessions/ci_sessionbvvjr0mesa1perijq85pm0u614e2dr7a): Failed to open stream: No space left on device

Filename: drivers/Session_files_driver.php

Line Number: 177

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once

A PHP Error was encountered

Severity: Warning

Message: session_start(): Failed to read session data: user (path: /var/lib/php/sessions)

Filename: Session/Session.php

Line Number: 137

Backtrace:

File: /var/www/html/index.php
Line: 316
Function: require_once