Publications by authors named "Zhao Qingwei"

Objectives: Whether vortioxetine has a utility as an adjuvant drug in the treatment of bipolar depression remains controversial. This study aimed to validate the efficacy and safety of vortioxetine in bipolar depression.

Methods: Patients with bipolar Ⅱ depression were enrolled in this prospective, two-center, randomized, 12-week pilot trial.

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Efforts have been made to leverage technology to accurately identify tumor characteristics and predict how each cancer patient may respond to medications. This involves collecting data from various sources such as genomic data, histological information, functional drug profiling, and drug metabolism using techniques like polymerase chain reaction, sanger sequencing, next-generation sequencing, fluorescence in situ hybridization, immunohistochemistry staining, patient-derived tumor xenograft models, patient-derived organoid models, and therapeutic drug monitoring. The utilization of diverse detection technologies in clinical practice has made "individualized treatment" possible, but the desired level of accuracy has not been fully attained yet.

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Article Synopsis
  • The study investigates how acylation, specifically crotonylation, regulates the production of daptomycin in the actinomycete Streptomyces roseosporus by modifying key metabolic enzymes.
  • Researchers found that crotonylation of the enzyme DptE, which starts the daptomycin biosynthesis process, limits its activity and identified the enzymes involved in adding and removing the crotonyl group.
  • By altering certain residues on DptE, the researchers enhanced its activity, significantly increasing daptomycin yield and suggesting potential improvements for industrial production through decrotonylation strategies.
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Bakuchiol (BAK), a specialized meroterpene, is known for its valuable biological properties and has recently gained prominence in cosmetology for its retinol-like functionality. However, low abundance in natural sources leads to environmentally unfriendly and unsustainable practices associated with crop-based manufacturing and chemical synthesis. Here, we identified a prenyltransferase (PT) from that catalyzes the reverse geranylation of a nonaromatic carbon in -coumaric acid (-CA), coupled with a decarboxylation step to form BAK.

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Nanozymes exhibiting natural enzyme-mimicking catalytic activities as antibacterial agents present several advantages, including high stability, low cost, broad-spectrum antibacterial activity, ease of preparation and storage, and minimal bacterial resistance. Consequently, they have attracted significant attention in recent years. However, the rapid expansion of antimicrobial nanozyme research has resulted in pioneering reviews that do not comprehensively address emerging concerns and enhancement strategies within this field.

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Background: Omadacycline is a new generation of tetracycline antibiotics, and its clinical application is increasing. We report the first case of acute pancreatitis possibly induced by omadacycline.

Case Presentation: The patient was admitted to the emergency intensive care unit due to community-acquired pneumonia.

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Lung cancer (LC) is the leading cause of cancer-related mortality worldwide. Radiotherapy is the main component of LC treatment; however, its efficacy is often limited by radioresistance development, resulting in unsatisfactory clinical outcomes. Here, we found that LC radiosensitivity is up-regulated by decreased expression of long-chain acyl-CoA synthase 6 (ACSL6) after irradiation.

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The anti- infection (CDI) drug fidaxomicin is a natural polyketide metabolite mainly produced by , such as , , and . In the present study, we employed a stepwise strategy by combining heterologous expression, chassis construction, promoter engineering, activator and transporters overexpression, and optimization of fermentation media for high-level production of fidaxomicin. The maximum yield of 384 mg/L fidaxomicin was achieved with engineered D7-VHb in 5 L-tank bioreactor, and it was approximately 15-fold higher than the native strain YP-1 with higher strain stability and growth rate.

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Article Synopsis
  • The study investigates ASC10, a new antiviral drug for COVID-19, in a phase 1 trial involving healthy participants to address the reduced effectiveness of existing vaccines against new SARS-CoV-2 variants.
  • Two parts of the trial examined different dosages and the effects of food on the drug absorption, finding that ASC10 was rapidly metabolized and showed consistent results whether participants were fed or fasting.
  • Results indicated that ASC10 was safe and well tolerated, with primarily mild adverse effects, and its pharmacokinetics showed a dose-dependent increase without accumulation in the body.
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Background: Oritavancin is a new generation of semi-synthetic glycopeptide antibiotics against Gram-positive bacteria, which served as the first and only antibiotic with a single-dose therapeutic regimen to treat ABSSSI. A naturally occurring glycopeptide A82846B is the direct precursor of oritavancin. However, its application has been hampered by low yields and homologous impurities.

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Background: Human lysozyme (hLYZ) is a natural antibacterial protein with broad applications in food and pharmaceutical industries. Recombinant production of hLYZ in Komagataella phaffii (K. phaffii) has attracted considerable attention, but there are very limited strategies for its hyper-production in yeast.

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Immune checkpoint inhibition targeting the PD-1/PD-L1 pathway has become a powerful clinical strategy for treating cancer, but its efficacy is complicated by various resistance mechanisms. One of the reasons for the resistance is the internalization and recycling of PD-L1 itself upon antibody binding. The inhibition of lysosome-mediated degradation of PD-L1 is critical for preserving the amount of PD-L1 recycling back to the cell membrane.

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Hydroxytyrosol (HT), a phenolic extra-virgin olive oil compound used as a food supplement, has been recognized to protect liver function and alleviate stress-induced depressive-like behaviors. However, its protective effects against stress-induced liver injury (SLI) remain unknown. Here, the anti-SLI effect of HT was evaluated in mice with chronic unpredictable mild stress-induced SLI.

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Objectives: To explore the efficacy and safety of tetrandrine in the treatment of rheumatoid arthritis.

Methods: Randomized controlled studies of tetrandrine in the treatment of rheumatoid arthritis were searched in CNKI, VIP, Wanfang database, SinoMed, PubMed, Springer, Web of Science and Cochrane Central Register of Controlled Trails databases. A meta-analysis was conducted using R 3.

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Polysaccharides from Pumpkin (Cucurbita moschata Duchesne) (PPs) have many pharmacological activities, including anti-oxidant, immune, and intestinal microbiota regulation. These activities have provided some reminders of its potential therapeutic effect on ulcerative colitis (UC), but this has not yet been confirmed. This study preliminarily confirmed its significant anti-UC activity superior to Salicylazosulfapyridine.

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Selinexor is a nuclear exportin-1 (XPO1) inhibitor that has been approved for the treatment of multiple myeloma patients. However, sustained use of selinexor may result in some undesirable consequences. Furthermore, selinexor has moderate inter-patient variability.

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Background: There is great interindividual difference in the plasma concentration of quetiapine, and optimizing quetiapine therapy to achieve a balance between efficacy and safety is still a challenge. In our study, a population pharmacokinetic (PPK) model considering genetic information was developed with the expectation of comprehensively explaining this observation in Chinese patients with bipolar disorder.

Methods: Patients who were dispensed quetiapine and underwent the therapeutic drug monitoring (TDM) were included.

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Background: To demonstrate bioequivalence between two drug formulations, a pilot trial is often conducted prior to a pivotal trial to assess feasibility and gain preliminary information about the treatment effect. Due to the limited sample size, it is not recommended to perform significance tests at the conventional 5% level using pilot data to determine if a pivotal trial should take place. Whilst some authors suggest to relax the significance level, a Bayesian framework provides an alternative for informing the decision-making.

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Article Synopsis
  • Protein post-translational modifications (PTMs) with acyl groups are important in the bacteria Streptomyces, but their further modification and effects on physiology haven't been well explored.
  • In Streptomyces roseosporus, a luciferase enzyme called LimB regulates levels of crotonylation, affecting cell development and antibiotic production by oxidizing crotonyl groups on an enzyme called Acs.
  • This oxidative modification triggers the breakdown of Acs through a specific protease pathway, leading to lower levels of crotonyl-CoA, indicating that post-PTM modifications (PPM) are significant for protein regulation and could be common in various organisms.
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  • * Advances in nanotechnology are making it easier to deliver anti-fibrotic drugs to challenging areas in the body, overcoming barriers that previously hindered treatment options.
  • * The review highlights that while preclinical studies show promise with various molecular, cellular, and tissue-level targets for intestinal fibrosis, clinical trials for liver fibrosis mainly focus on reducing inflammation and improving metabolic issues, leading to potential new treatment strategies using stem cells and targeted therapies.
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  • Cascade regulation networks in microorganisms can be complex, particularly when trying to identify specific regulators for gene clusters.
  • This study used a method called "DNA to Proteins" affinity purification to identify MtrA, a global regulator that enhances fidaxomicin production by 37% when overexpressed.
  • By integrating the "Protein to DNAs" affinity purification technique (DAP-seq) with RNA-seq analysis, the research revealed MtrA's role in metabolic processes and offered new insights into improving fidaxomicin production while providing a fresh approach for studying cascade regulation networks.
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Introduction: The increase in the number of patients with uncontrolled type 2 diabetes mellitus (T2DM) is in need of effective management interventions. However, research to date has been limited to the evaluation of the outcomes of community pharmacists alone. Therefore, the aim of the study protocol is to compare the effects of clinical pharmacist-led intervention strategies for the management of T2DM in the outpatient settings.

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Aims: We evaluated whether the randomness of mutation breeding can be regulated through a double-reporter system. We hope that by establishing a new precursor feeding strategy, the production capacity of industrial microorganisms after pilot scale-up can be further improved.

Methods And Results: In this study, the industrial strain Streptomyces roseosporus L2796 was used as the starter strain for daptomycin production, and a double-reporter system with the kanamycin resistance gene Neo and the chromogenic gene gusA was constructed to screen for high-yield strain L2201 through atmospheric and room temperature plasma (ARTP).

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The phenotypic and regulatory variability of drug transporter (DT) are vital for the understanding of drug responses, drug-drug interactions, multidrug resistances, and so on. The ADME property of a drug is collectively determined by multiple types of variability, such as: microbiota influence (MBI), transcriptional regulation (TSR), epigenetics regulation (EGR), exogenous modulation (EGM) and post-translational modification (PTM). However, no database has yet been available to comprehensively describe these valuable variabilities of DTs.

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Background: DIP is a new medical insurance payment system developed in China which was implemented in Guangzhou in January 2018, but few studies have focused on its intervention effect on the drug burden of elderly hypertensive patients.

Methods: Nine medical institutions in Guangzhou, China, were selected, among which, daily full medical orders of elderly hypertensive inpatients from 2016 to 2020 were randomly collected. To assess the impact of DIP policy intervention on patient drug burden, we took the data after policy implementation in January 2018, as the intervention data, and applied a segmented regression model with interrupted time series to analyze the trend and changes in average daily drug costs per month and medication structure, stratified by age, sex, and inpatient department.

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