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  1. Article ; Online: Microbial synthesis of bacitracin: Recent progress, challenges, and prospects.

    Zhu, Jiang / Wang, Shiyi / Wang, Cheng / Wang, Zhi / Luo, Gan / Li, Junhui / Zhan, Yangyang / Cai, Dongbo / Chen, Shouwen

    Synthetic and systems biotechnology

    2023  Volume 8, Issue 2, Page(s) 314–322

    Abstract: Microorganisms are important sources of various natural products that have been commercialized for human medicine and animal healthcare. Bacitracin is an important antibacterial natural product predominantly produced ... ...

    Abstract Microorganisms are important sources of various natural products that have been commercialized for human medicine and animal healthcare. Bacitracin is an important antibacterial natural product predominantly produced by
    Language English
    Publishing date 2023-04-10
    Publishing country China
    Document type Journal Article ; Review
    ISSN 2405-805X
    ISSN (online) 2405-805X
    DOI 10.1016/j.synbio.2023.03.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Prevalence, cognitive characteristics, and influencing factors of amnestic mild cognitive impairment among older adults residing in an urban community in Chengdu, China.

    Rao, Shan / Cai, Yan / Zhong, Zhujun / Gou, Tianyuan / Wang, Yangyang / Liao, Shiyi / Qiu, Peiyuan / Kuang, Weihong

    Frontiers in neurology

    2024  Volume 15, Page(s) 1336385

    Abstract: Objective: Dementia is a significant public health concern, and mild cognitive impairment (MCI) serves as a transitional stage between normal aging and dementia. Among the various types of MCI, amnestic MCI (aMCI) has been identified as having a higher ... ...

    Abstract Objective: Dementia is a significant public health concern, and mild cognitive impairment (MCI) serves as a transitional stage between normal aging and dementia. Among the various types of MCI, amnestic MCI (aMCI) has been identified as having a higher likelihood of progressing to Alzheimer's dimension. However, limited research has been conducted on the prevalence of aMCI in China. Therefore, the objective of this study is to investigate the prevalence of aMCI, examine its cognitive characteristics, and identify associated risk factors.
    Methods: In this cross-sectional study, we investigated a sample of 368 older adults aged 60 years and above in the urban communities of Chengdu, China. The participants underwent a battery of neuropsychological assessments, including the Mini-Mental State Examination (MMSE), the Clinical Dementia Rating (CDR), Auditory Verbal Learning Test (AVLT), Wechsler's Logical Memory Task (LMT), Boston Naming Test (BNT) and Trail Making Test Part A (TMT-A). Social information was collected by standard questionnaire. Multiple logistic regression analysis was utilized to screen for the risk and protective factors of aMCI.
    Results: The data analysis included 309 subjects with normal cognitive function and 59 with aMCI, resulting in a prevalence of 16.0% for aMCI. The average age of participants was 69.06 ± 7.30 years, with 56.0% being females. After controlling for age, gender and education, the Spearman partial correlation coefficient between various cognitive assessments and aMCI ranged from -0.52 for the long-term delayed recall scores in AVLT to 0.19 for the time-usage scores in TMT-A. The results indicated that all cognitive domains, except for naming scores (after semantic cue of BNT) and error quantity (in TMT-A), showed statistically significant associations with aMCI. Furthermore, the multiple logistic regression analysis revealed that older age (OR = 1.044, 95%CI: 1.002~1.087), lower educational level, and diabetes (OR = 2.450, 95%CI: 1.246~4.818) were risk factors of aMCI.
    Conclusion: This study found a high prevalence of aMCI among older adults in Chengdu, China. Individuals with aMCI exhibited lower cognitive function in memory, language, and executive domains, with long-term delayed recall showing the strongest association. Clinicians should prioritize individuals with verbal learning and memory difficulties, especially long-term delayed recall, in clinical practice.
    Language English
    Publishing date 2024-01-31
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2564214-5
    ISSN 1664-2295
    ISSN 1664-2295
    DOI 10.3389/fneur.2024.1336385
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Long Noncoding RNA ZBED5-AS1 Facilitates Tumor Progression and Metastasis in Lung Adenocarcinoma via ZNF146/ATR/Chk1 Axis.

    Jiang, Feng / Huang, Xiaolu / Ling, Liqun / Tang, Shiyi / Zhou, Huixin / Cai, Xueding / Wang, Yumin

    International journal of molecular sciences

    2023  Volume 24, Issue 18

    Abstract: Long noncoding RNAs (lncRNAs) have been implicated in tumorigenesis, including lung adenocarcinoma (LUAD). However, the functional and regulatory mechanisms of lncRNAs in LUAD remain poorly understood. In this study, we investigated the role of lncRNA ... ...

    Abstract Long noncoding RNAs (lncRNAs) have been implicated in tumorigenesis, including lung adenocarcinoma (LUAD). However, the functional and regulatory mechanisms of lncRNAs in LUAD remain poorly understood. In this study, we investigated the role of lncRNA ZBED5-AS1 in LUAD. We found that ZBED5-AS1 was upregulated in LUAD specimens and overexpressed in LUAD cell lines. ZBED5-AS1 promoted LUAD cell proliferation, migration, and invasion in vitro and promoted LUAD cell growth in vivo. ZBED5-AS1 promoted ZNF146 expression, activating the ATR/Chk1 pathway and leading to LUAD progression. We observed that exosomes from LUAD cells have a higher expression of ZBED5-AS1 compared with exosomes from the normal cell line BEAS-2B. Coculture experiments with exosomes showed that ZBED5-AS1 expression was downregulated after coculture with Si-ZBED5-AS1 exosomes, and coculture with exosomes with low ZBED5-AS1 expression inhibited proliferation and invasion of LUAD cells. Our results indicate that ZBED5-AS1 functions as an oncogenic factor in LUAD cells by targeting the ZNF146/ATR/Chk1 axis.
    MeSH term(s) Humans ; Adenocarcinoma/genetics ; Ataxia Telangiectasia Mutated Proteins ; Carcinogenesis ; Cell Transformation, Neoplastic ; Lung ; RNA, Long Noncoding/genetics
    Chemical Substances Ataxia Telangiectasia Mutated Proteins (EC 2.7.11.1) ; ATR protein, human (EC 2.7.11.1) ; RNA, Long Noncoding ; CHEK1 protein, human (EC 2.7.11.1) ; ZNF146 protein, human
    Language English
    Publishing date 2023-09-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms241813925
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Alternative Splicing for

    Wang, Hai / Guo, Yuning / Hao, Xueying / Zhang, Wenxin / Xu, Yanxia / He, Wenting / Li, Yanxi / Cai, Shiyi / Zhao, Xiang / Song, Xuebin

    Genes

    2023  Volume 14, Issue 8

    Abstract: Leucanthemella ... ...

    Abstract Leucanthemella linearis
    MeSH term(s) Nicotiana/genetics ; Alternative Splicing ; Plant Breeding ; Asteraceae ; Chrysanthemum ; Salt Stress ; Alkalies
    Chemical Substances Alkalies
    Language English
    Publishing date 2023-07-28
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2527218-4
    ISSN 2073-4425 ; 2073-4425
    ISSN (online) 2073-4425
    ISSN 2073-4425
    DOI 10.3390/genes14081549
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Long Noncoding RNA ZBED5-AS1 Facilitates Tumor Progression and Metastasis in Lung Adenocarcinoma via ZNF146/ATR/Chk1 Axis

    Feng Jiang / Xiaolu Huang / Liqun Ling / Shiyi Tang / Huixin Zhou / Xueding Cai / Yumin Wang

    International Journal of Molecular Sciences, Vol 24, Iss 13925, p

    2023  Volume 13925

    Abstract: Long noncoding RNAs (lncRNAs) have been implicated in tumorigenesis, including lung adenocarcinoma (LUAD). However, the functional and regulatory mechanisms of lncRNAs in LUAD remain poorly understood. In this study, we investigated the role of lncRNA ... ...

    Abstract Long noncoding RNAs (lncRNAs) have been implicated in tumorigenesis, including lung adenocarcinoma (LUAD). However, the functional and regulatory mechanisms of lncRNAs in LUAD remain poorly understood. In this study, we investigated the role of lncRNA ZBED5-AS1 in LUAD. We found that ZBED5-AS1 was upregulated in LUAD specimens and overexpressed in LUAD cell lines. ZBED5-AS1 promoted LUAD cell proliferation, migration, and invasion in vitro and promoted LUAD cell growth in vivo. ZBED5-AS1 promoted ZNF146 expression, activating the ATR/Chk1 pathway and leading to LUAD progression. We observed that exosomes from LUAD cells have a higher expression of ZBED5-AS1 compared with exosomes from the normal cell line BEAS-2B. Coculture experiments with exosomes showed that ZBED5-AS1 expression was downregulated after coculture with Si-ZBED5-AS1 exosomes, and coculture with exosomes with low ZBED5-AS1 expression inhibited proliferation and invasion of LUAD cells. Our results indicate that ZBED5-AS1 functions as an oncogenic factor in LUAD cells by targeting the ZNF146/ATR/Chk1 axis.
    Keywords lung adenocarcinoma ; long noncoding ZBED5-AS1 ; exosomes ; proliferation ; metastasis ; Biology (General) ; QH301-705.5 ; Chemistry ; QD1-999
    Subject code 570
    Language English
    Publishing date 2023-09-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: High resolution and large measurement range voltage sensing based on an optoelectronic oscillator utilizing an unbalanced Mach-Zehnder interferometer.

    Wu, Beilei / Chen, Hong / Wang, Muguang / Yin, Bin / Ma, Jiuyang / Zhao, Xiaotong / Xiao, Shiying / Cai, Shiyi / Yan, Fengping

    Optics express

    2024  Volume 32, Issue 5, Page(s) 8030–8041

    Abstract: A voltage sensor with high resolution and large measurement range based on an optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. The key component in the cavity to select the oscillating signal is a finite impulse response (FIR)- ...

    Abstract A voltage sensor with high resolution and large measurement range based on an optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. The key component in the cavity to select the oscillating signal is a finite impulse response (FIR)-microwave photonic filter (MPF) which consists of a sinusoidal broadband optical signal, an unbalanced Mach-Zehnder interferometer (MZI), a section of dispersion compensating fiber, and a photodetector. The center frequency of the FIR-MPF is mainly determined by the free spectral range (FSR) of the FIR-MPF. In the lower arm of the MZI, a cylindrical piezoelectric ceramic (PZT) wrapped with a section of optical fiber acts as voltage sensing head. Due to the inverse piezoelectric effect of PZT, the variation of the voltage will cause radial deformation of the cylindrical PZT and then lead to the change of the FSR of the MZI, determining the shift of center frequency of FIR-MPF as well as the frequency of the oscillating signal of the OEO. Thus, by monitoring the shift of the oscillation frequency of the OEO using an electric spectrum analyzer or a digital signal processor, a high-speed interrogation and high-resolution voltage measurement can be realized. Additionally, in the proposed scheme, an infinite impulse response (IIR)-MPF consisting of a fiber ring resonator is cascaded with the FIR-MPF to ensure the single-mode oscillation of the OEO. The experimental results show that a total range of 1700 V voltage sensing from - 200 V to 1500 V is accomplished with the voltage sensitivity of 0.25 GHz/100 V and the resolution of 0.3 V. By adjusting the proportion of the length of single mode fiber between two branches of MZI, the impact of temperature can be greatly reduced. The proposed sensor offers advantages such as a large measurement range, high resolution, high-speed interrogation, and stability to temperature disturbances, making it highly suitable for sensing applications in smart grids.
    Language English
    Publishing date 2024-03-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.515313
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Small airway dysfunction associated with poor short-term outcomes in patients undergoing thoracoscopic surgery for lung cancer.

    Xu, Linbin / Cai, Yuanting / He, Shiyi / Zhu, Ke / Li, Chenwei / Liang, Zhigang / Cao, Chao

    Surgery

    2023  Volume 174, Issue 5, Page(s) 1241–1248

    Abstract: Background: Although small airway dysfunction is a common respiratory dysfunction, its prognosis after lung cancer surgery is often neglected. This study investigated the relationship between small airway dysfunction and outcomes in patients who ... ...

    Abstract Background: Although small airway dysfunction is a common respiratory dysfunction, its prognosis after lung cancer surgery is often neglected. This study investigated the relationship between small airway dysfunction and outcomes in patients who underwent thoracoscopic surgery for lung cancer.
    Methods: A retrospective cohort study of patients who underwent thoracoscopic surgery was conducted between December 2019 and March 2021 at Ningbo First Hospital. We used univariate and multivariate analyses to assess the possible associations between postoperative outcomes and clinical variables, including small airway dysfunction. To balance the potential confounding factors, propensity score matching was performed to establish 1:1 small airway dysfunction and small airway normal function group matching.
    Results: In this study, 1,012 patients undergoing thoracoscopic surgery for lung cancer were enrolled. Small airway dysfunction was present in 18.7% of patients (189/1,012). The incidence of postoperative pulmonary complications in the small airway dysfunction group was higher than that of the small airway normal function group (16.4% vs 6.2%, P < .001). The most significant postoperative pulmonary complications were pneumonia (7.4% vs 2.4%, P < .001) in the small airway dysfunction and normal function groups, respectively. In addition, a significantly prolonged median hospital length of stay was observed in the small airway dysfunction group compared to the small airway normal function group (median [interquartile range], 9 [7-12] vs 8 [7-9], P < .001). After 1:1 propensity score matching, 298 patients (149 pairs) were included in the comparison between small airway dysfunction and small airway normal function, and this association remained. Postoperative pulmonary complications (13.4% vs 6.0%, P = .032) were still higher, and length of stay (median [interquartile range] 9 [7-11] vs 8 [6-10] days, P = .001) was still longer in the small airway dysfunction group. Multivariate analysis indicated that small airway dysfunction was the independent risk factor associated with both postoperative pulmonary complications (odds ratio = 2.694, 95% confidence interval: 1.640-4.426, P < .001) and prolonged length of stay (beta = 1.045, standard error = 0.159, 95% confidence interval: 0.733-1.357, P < .001).
    Conclusion: Our study showed that small airway dysfunction increased the incidence of postoperative pulmonary complications and prolonged length of stay in patients undergoing thoracoscopic surgery for lung cancer.
    Language English
    Publishing date 2023-09-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 202467-6
    ISSN 1532-7361 ; 0039-6060
    ISSN (online) 1532-7361
    ISSN 0039-6060
    DOI 10.1016/j.surg.2023.08.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: A review of recent developments in application of plant fibers as reinforcements in concrete

    Wu, Hansong / Shen, Aiqin / Cheng, Qianqian / Cai, Yanxia / Ren, Guiping / Pan, Hongmei / Deng, Shiyi

    Journal of Cleaner Production. 2023 Sept., v. 419 p.138265-

    2023  

    Abstract: Owing to growing environmental awareness, significant attention is being focused on plant fibers as inexpensive alternatives to polymeric fibers. Plant fibers used in concrete are eco-friendly, recyclable, and biodegradable. Therefore, the application of ...

    Abstract Owing to growing environmental awareness, significant attention is being focused on plant fibers as inexpensive alternatives to polymeric fibers. Plant fibers used in concrete are eco-friendly, recyclable, and biodegradable. Therefore, the application of plant fibers as reinforcement in concrete has received considerable attention. This review covers recent research on the use of plant fibers in concrete. A bibliometric analysis was conducted to identify significant research achievements. Subsequently, the characteristics of plant fibers, including micromorphology, predominant components, physical and mechanical properties, the correlation between predominant chemical components and properties, thermal properties, and degradation mechanisms in cement composites, are introduced. Details of the effects of plant fibers on the properties (static, dynamic mechanical, durability, thermal, and self-healing) of concrete are discussed. After stating the basic issues on the application of plant fibers in concrete, various modification methods and mechanisms to improve the durability of plant-fiber-reinforced concrete, including matrix (i.e., the addition of pozzolans and carbonation) and fiber modifications (i.e., physical and chemical modifications), are summarized. Subsequently, the hybrid use of plant fibers and other types of fibers are described, followed by a detailed presentation of evaluation indexes and mechanisms. This review provides fundamental knowledge on plant-fiber-reinforced concrete, discusses the main challenges in the development of plant-fiber-reinforced concrete, and proposes future research scopes.
    Keywords bibliometric analysis ; biodegradability ; carbonation ; cement ; concrete ; durability ; microstructure ; polymers ; Plant fiber ; Mechanical property ; Thermal property ; Modification ; Hybrid fiber
    Language English
    Dates of publication 2023-09
    Publishing place Elsevier Ltd
    Document type Article ; Online
    ISSN 0959-6526
    DOI 10.1016/j.jclepro.2023.138265
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: Enhancing the activity of disulfide-bond-containing proteins via promoting disulfide bond formation in Bacillus licheniformis.

    Wang, Shiyi / Zhao, Yiwen / Mao, Shufen / Zhu, Jiang / Zhan, Yangyang / Cai, Dongbo / Ma, Xin / Wang, Dong / Chen, Shouwen

    International journal of biological macromolecules

    2023  Volume 233, Page(s) 123468

    Abstract: Disulfide bonds in proteins have strongly influence on the folding efficiency by constraining the conformational space. The inefficient disulfide bond formation of proteins is the main limiting factor of enzyme activity and stability. This study aimed to ...

    Abstract Disulfide bonds in proteins have strongly influence on the folding efficiency by constraining the conformational space. The inefficient disulfide bond formation of proteins is the main limiting factor of enzyme activity and stability. This study aimed to increase the activity of disulfide-bond-containing proteins via promoting disulfide bonds formation in Bacillus licheniformis. Initially, the glutamate decarboxylase GAD from Escherichia coli was selected as the model protein and introduced into the B. licheniformis. Then, the disulfide isomerase and oxidoreductase from different sources were excavated and overexpressed successively to improve the catalytic efficiency of GAD. The final engineered B. licheniformis showed significantly improved GAD specific activity (from 10.4 U/mg to 80.0 U/mg), which also presented perfect adaptability for other disulfide-bond-containing proteins, for instance, UDP-glucosyltransferase from Arabidopsis thaliana. Taken together, our work demonstrated that the activity of GAD in B. licheniformis was regulated by the disulfide bonds formation status and provided a promising platform for the expression of disulfide-bond-containing proteins.
    MeSH term(s) Protein Folding ; Bacillus licheniformis/genetics ; Bacillus licheniformis/metabolism ; Protein Disulfide-Isomerases/metabolism ; Oxidoreductases/metabolism ; Escherichia coli/metabolism ; Disulfides/chemistry ; Oxidation-Reduction
    Chemical Substances Protein Disulfide-Isomerases (EC 5.3.4.1) ; Oxidoreductases (EC 1.-) ; Disulfides
    Language English
    Publishing date 2023-01-31
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 282732-3
    ISSN 1879-0003 ; 0141-8130
    ISSN (online) 1879-0003
    ISSN 0141-8130
    DOI 10.1016/j.ijbiomac.2023.123468
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Classifying and evaluating fetuses with multicystic dysplastic kidney in etiologic studies.

    Cai, Meiying / Guo, Chong / Wang, Xinrui / Lin, Min / Xu, Shiyi / Huang, Hailong / Lin, Na / Xu, Liangpu

    Experimental biology and medicine (Maywood, N.J.)

    2023  Volume 248, Issue 10, Page(s) 858–865

    Abstract: Multicystic dysplastic kidney (MCDK) is one of the most common fetal malformations, but its etiology remains unclear. Identification of the molecular etiology could provide a basis for prenatal diagnosis, consultation, and prognosis evaluation for MCDK ... ...

    Abstract Multicystic dysplastic kidney (MCDK) is one of the most common fetal malformations, but its etiology remains unclear. Identification of the molecular etiology could provide a basis for prenatal diagnosis, consultation, and prognosis evaluation for MCDK fetuses. We used chromosome microarray analysis (CMA) and whole-exome sequencing (WES) to conduct genetic tests on MCDK fetuses and explore their genetic etiology. A total of 108 MCDK fetuses with or without other extrarenal abnormalities were selected. Karyotype analysis of 108 MCDK fetuses showed an abnormal karyotype in 4 (3.7%, 4/108) of the fetuses. However, CMA detected 15 abnormal copy number variations (CNVs) (14 pathogenic CNVs, and one variant of unknown significance [VUS] CNVs), in addition to four cases that were consistent with the results of karyotype analysis. Out of the 14 pathogenic CNVs cases, three were of 17q12 microdeletion, two of 22q11.21 microdeletion, 22q11.21 microduplication uniparental disomy (UPD), and one case of 4q31.3q32.2 microdeletion, 7q11.23 microduplication, 15q11.2 microdeletion, 16p11.2 microdeletion, and 17p12 microdeletion. Of the 89 MCDK fetuses with normal karyotype analysis and CMA, 15 were tested by WES. Two (13.3%, 2/15) fetuses were identified by WES as Bardet-Biedl syndrome (BBS) 1 and BBS2. Combined application of CMA-WES to detect MCDK fetuses can significantly improve the detection rate of genetic etiology, providing a basis for consultation, and prognosis evaluation.
    MeSH term(s) Multicystic Dysplastic Kidney/diagnostic imaging ; Multicystic Dysplastic Kidney/genetics ; Prenatal Diagnosis ; Humans ; Fetus/abnormalities ; Karyotype ; Ultrasonography ; Female ; Pregnancy ; Follow-Up Studies ; Exome Sequencing
    Language English
    Publishing date 2023-05-19
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 4015-0
    ISSN 1535-3699 ; 1525-1373 ; 0037-9727
    ISSN (online) 1535-3699 ; 1525-1373
    ISSN 0037-9727
    DOI 10.1177/15353702231164933
    Database MEDical Literature Analysis and Retrieval System OnLINE

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