Publications by authors named "Zi-wei Zhang"

Three new N-alkylated amino acid derivatives, penichrysoamides A-C (1-3), along with a new citric acid derivative, penichrysoacid A (4), a new chromanone lactone penichrysoacid B (5), and a new amide derivative, penichrysoamide D (6), as well as seven known benzamide derivatives (7-13), were isolated from the endophytic fungus Penicillium chrysogenum derived from the insect Periplaneta americana. The structures of these compounds, including their absolute configurations, were elucidated using spectroscopic and computational techniques. Biological evaluation revealed that compounds 8-13 exhibited significant COX-2 inhibitory activity, with IC values ranging from 275 nM to 1350 nM.

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  • Guidewire fractures pose a significant risk during percutaneous coronary interventions; the twisting wire technique is a method used to retrieve fractured wires, but its risks are not well-documented.
  • A 37-year-old male required a procedure for chronic total occlusion of the left circumflex artery, but during the process, a guidewire spontaneously fractured, leaving a fragment in the coronary artery.
  • Despite multiple attempts to retrieve the wire using the twisting technique, which eventually caused a coronary perforation, the procedure was ultimately halted, and successful surgical extraction was performed instead.
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Following the publication of this paper, it was drawn to the Editor's attention by a concerned reader that certain of the Transwell invasion assay data shown in Figs. 2C and 4B were strikingly similar to data appearing in different form in a paper by different authors at a different research institute that had already been submitted for publication. Owing to the fact that the contentious data in the above article had already been submitted for publication prior to its submission to , the Editor has decided that this paper should be retracted from the Journal.

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  • Constructing Fe-Cu bimetal catalysts enhances the efficiency of the Fe(III)/Fe(II) cycle, but the exact role of copper in these catalysts needs further investigation.
  • The new iron-based metal-organic framework (MOF) BUC-96(Fe) was created using a combination of materials and methods, and bimetallic versions (BUC-96(FeCu-x)) were developed by adding copper.
  • The bimetallic catalyst BUC-96(FeCu-5) showed exceptional performance by degrading nearly 100% of chloroquine phosphate in just 5 minutes, outperforming the pure iron MOF significantly and demonstrating promise for treating various organic pollutants in wastewater.
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  • * The most commonly purchased OTC medications were paracetamol and analgesics, with key considerations for self-medication being medical recommendations, drug safety, and efficacy.
  • * Data was collected from over 9,000 respondents across various regions in China, with analysis revealing significant trends in how residents prioritize drug safety and effectiveness based on their demographic and healthcare access factors.
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B cell activating factor (BAFF) has been shown to play a key role in regulating B cell function, but little is known about whether BAFF affects the function of fibroblast-like synoviocyte (FLS), an effector cell of rheumatoid arthritis (RA). CP-25, a new ester derivative of paeoniflorin, could alleviate the arthritis symptoms of collagen-induced arthritis (CIA) mice by inhibiting BAFF-mediated abnormal activation of B cells. In this study, we aimed to understand the mechanism by which BAFF activates FLS and the effect of CP-25 on FLS function.

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  • Researchers discovered new, effective insecticides from natural products, focusing on Celangulin V, which targets a specific enzyme in insects.
  • They synthesized thirty-seven sulfonamide derivatives to find cost-effective compounds with high insecticidal efficiency.
  • Several derivatives showed better insecticidal activity against larvae than Celangulin V, providing potential new insecticide options based on their unique mechanism of action.
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Context: Glucocorticoids have potent effects on the central nervous system. However, while patients with Cushing syndrome frequently report impairments in cognitive function, studies investigating cognitive function in patients with autonomous cortisol secretion (ACS) in adrenal incidentalomas (AIs) are scarce.

Objective: The aim of the present study was to evaluate neurocognitive function in patients with ACS.

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Celangulin V is a natural -dihydrofuran sesquiterpene polyester with anti activity and unique mechanism of action. Further study showed that its target was the H subunit of V-ATPase in the midgut of . Thus, combined with the previous work, thirty-two benzene sulfonamide derivatives were systematically synthesised to discover efficient and low-budget insecticidal candidates for the H subunit of V-ATPase.

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To study the mechanisms of cold exposure mediated ileum mechanical barrier injury in mice. Twenty mice were randomly divided into the control and cold exposure groups. Both the control and cold exposure groups were placed in the climate room with (24±2)℃ and 40% humidity.

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  • * This study compares the effectiveness of Fe(VI), a new eco-friendly disinfectant, with chlorine in eliminating different types of bacteria from secondary water effluent, revealing that Fe(VI) outperforms chlorine in inactivating E. coli and total coliforms at low doses.
  • * While Fe(VI) showed efficacy against certain chlorine-resistant bacteria, it struggled with Pseudomonas and had a significant "trailing phenomenon," suggesting the need for further research to refine its use in disinfection processes.
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Sixty-nine 4-propargyloxybenzene sulfonamide derivatives with different amino acids as amino substituent were synthesized and evaluated for their insecticidal activity against third-instar . The bioassay results revealed that some derivatives bearing amino acid ester group performed good insecticidal activity against third-instar , such as the LC values of and were 4.28 and 2.

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This study aimed to explore the molecular mechanisms underlying the differential quality of tea made from leaves at different development stages. Fresh Camellia sinensis (L.) O.

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  • Membrane fouling is a major issue for reverse osmosis (RO) water systems, influenced by disinfection methods, which can leave behind bacteria that cause biofouling.
  • The study compared five traditional disinfection methods (like UV and NaClO) and two novel ones (KFeO and FES) to see their effects on RO membrane fouling; results showed UV-DRB caused more fouling compared to the others.
  • ATP levels were found to be a good indicator of biofouling potential, with thicker and denser biofilms linked to higher fouling, particularly from bacteria like Pseudomonas and Sphingomonas that produce more extracellular polymeric substances (EPS).
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Background: Bone loss and osteoporosis are commonly described as extra-intestinal manifestations of inflammatory bowel disease (IBD). Jianpi Qingchang Bushen decoction (JQBD) is a prescription used in clinical practice. However, further studies are needed to determine whether JQBD regulates the receptor activator of nuclear factor kappa B (NF-κB) (RANK)/receptor activator of NF-κB ligand (RANKL)/ osteoprotegerin (OPG) pathways and could play a role in treating IBD-induced bone loss.

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  • - Ultrafiltration (UF) is commonly used before reverse osmosis (RO) because it effectively removes microbes and particles, but it may negatively impact RO membrane performance.
  • - After UF pretreatment with various molecular weight cut-off membranes (100, 30, 10 kDa), the overall water quality showed minimal changes, yet the flux of the RO membranes decreased significantly compared to secondary effluent.
  • - The study found that UF retentates can help prevent scaling on RO membranes, and while different MWCO membranes yielded similar characteristics in the retained substances, further investigation into the effects of specific minor components in the RO system is necessary.
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  • The study investigates the population-specific cut-off points (COPs) for the fatty liver index (FLI), a blood biomarker used to diagnose hepatic steatosis, by analyzing data from liver ultrasound tests among participants in the National Health and Nutrition Examination Survey (NHANES).
  • Two different datasets were used: 5,948 participants with liver elastography and 14,797 with conventional ultrasonography, revealing significant differences in the prevalence of hepatic steatosis (HS) and optimal FLI cut-off points based on the diagnostic method used.
  • The findings show that FLI cut-off points are more accurate when derived from liver ultrasound transient elastography (LUTE) compared to conventional ultrasonography, indicating a concerning
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Background: Excessive endoplasmic reticulum (ER) stress in intestinal epithelial cells (IEC) may lead to impaired intestinal mucosal barrier function and then participate in the pathogenesis of ulcerative colitis (UC). Jianpi Qingchang decoction (JPQCD) has been shown to have protective effects on UC. However, further studies are needed to determine whether JPQCD regulates PERK/eIF2/ATF4/CHOP pathways to play a role in treating UC.

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  • - The study focused on evaluating dehydroepiandrosterone sulfate (DHEAS) as a potential screening tool for diagnosing autonomous cortisol secretion (ACS) in patients with adrenal incidentalomas, where ACS affects up to 30% of these patients.
  • - Results showed that the optimal DHEAS cutoff for diagnosing ACS was 60 μg/dL, achieving a sensitivity of 75.6% and specificity of 81.4%, while also providing moderate diagnostic accuracy through other cortisol levels measured.
  • - The findings suggest that a single DHEAS measurement is effective and practical for ACS screening, potentially making it a valuable test in clinical settings.
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  • This study focuses on the role of landscape water in urban water systems and how excess nitrogen impacts the ecology, particularly the community structure of denitrifying bacteria.
  • Researchers used functional genes as markers to assess these bacteria in landscape water and sediment, noting significant seasonal and spatial distribution differences in nitrogen levels.
  • Findings revealed that denitrifying bacteria mainly belong to the Proteobacteria phylum, with environmental factors such as permanganate index and total phosphorus significantly affecting their community structure in both water and sediment.
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  • The study focused on the distribution of aerobic denitrification bacteria in the sediments of Gangnan Reservoir, utilizing high-throughput sequencing to analyze their community characteristics.
  • Findings indicated that bacterial diversity and richness were higher in autumn and winter compared to spring and summer, with the transition zone showing the greatest community diversity compared to inflow and main reservoir areas.
  • The dominant bacteria belonged to the Proteobacteria phylum, and significant spatial and temporal differences in community composition were observed, with various keystone species contributing notably to the ecosystem's health.
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Adsorption and coagulation were commonly used to alleviate reverse osmosis (RO) membrane fouling caused by dissolved organic matters (DOM), but the effects of changed composition and structure of DOM in dyeing wastewater after adsorption and coagulation on RO membrane fouling have seldom been studied. This study aimed at resolving the mechanism how the RO membrane fouling during dyeing wastewater treatment was alleviated by using adsorption and coagulation. The dyeing wastewater caused serious RO membrane fouling.

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  • - Chlorine disinfection is commonly used to control biofouling in reverse osmosis (RO) membranes, but it can actually worsen fouling due to the presence of chlorine-resistant bacteria (CRB).
  • - Five CRB strains were isolated from fouled RO membranes and compared with three reference strains, revealing that two strains, *Bacillus CR19* and *Bacillus CR2*, showed significantly higher resistance to chlorine and potential for membrane fouling.
  • - A positive correlation was found between chlorine resistance and membrane fouling potential, with extracellular polymeric substances (EPS) playing a key role in fouling; however, strains with high EPS did not always have a strong adhesive potential to the membranes before chlorine
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  • Dissolved organic matter (DOM) is crucial for environmental organic content, and this study analyzed its characteristics in rainwater from different regions of Hebei province using UV-vis and fluorescence spectroscopy.
  • The findings revealed significant regional differences in DOM's molecular weight, with northern areas showing lower values, and identified components including humic-like, protein-like, and fulvic-like substances, predominantly protein-like (C2) at 40.59% of the total DOM.
  • Redundancy analysis indicated that nitrogen-based factors significantly influenced DOM distribution, emphasizing that summer rain is predominantly autochthonous with notable differences between city and rural areas regarding DOM characteristics.
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