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  1. Article: Traditional Tibetan Medicine Twenty-Five Wei'er Tea Pills Ameliorate Rheumatoid Arthritis Based on Chemical Crosstalk Between Gut Microbiota and the Host.

    Li, Zixuan / Nie, Lijuan / Li, Yong / Yang, Lu / Jin, Lulu / Du, Baozhong / Yang, Juan / Zhang, Xulin / Cui, Huantian / Luobu, Ouzhu

    Frontiers in pharmacology

    2022  Volume 13, Page(s) 828920

    Abstract: Twenty-Five Wei'er Tea Pills (TFP), a traditional Tibetan medicine, has shown to have a promising ...

    Abstract Twenty-Five Wei'er Tea Pills (TFP), a traditional Tibetan medicine, has shown to have a promising therapeutic effect in patients with Rheumatoid arthritis (RA), as well as being safe. Nonetheless, there have been limited pharmacological studies that have explored this therapeutic option. As gut microbiota has been proven to have a critical role in the pathogenesis of RA, this study aims to explore and reveal relevant ways by which TFP interacts with the chemical crosstalk between the gut microbiome and its host. 16S rRNA sequencing, combined with un-targeted metabolomics, were conducted on collagen-induced arthritis (CIA) rats. CIA model rats treated with TFP showed significant improvement in weight gain, pathological phenomena in joints, as well as decreased serum levels of TNF-α, IL-6 and increased level of IL-4 and IL-10. Significant dysfunction in the gut microbiome and alteration in serum metabolites were observed in CIA model rats, which were restored by TFP treatment. Coherence analysis indicated that TFP modulated the pathways of histidine metabolism, phenylalanine metabolism, alanine, aspartate, glutamate metabolism, amino sugar and nucleotide sugar metabolism owing to the abundances of
    Language English
    Publishing date 2022-02-10
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2022.828920
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Study on total reflection performance of films grown by atomic layer deposition relevant to X-ray reflective optics.

    Li, Yanli / Lu, Weier / Zhang, Xinyue / Kong, Xiangdong / Qu, Fei / Han, Li

    Applied optics

    2022  Volume 61, Issue 14, Page(s) 3934–3938

    Abstract: For X-ray reflective optics that work based on the concept of total external reflection, coating the reflector surface with high-density film is a common idea to enhance performance. Atomic layer deposition (ALD) has been proven to be a promising way to ... ...

    Abstract For X-ray reflective optics that work based on the concept of total external reflection, coating the reflector surface with high-density film is a common idea to enhance performance. Atomic layer deposition (ALD) has been proven to be a promising way to coat the reflector surface with a large curvature, even the inner surface of an X-ray capillary. In this paper,
    Language English
    Publishing date 2022-10-03
    Publishing country United States
    Document type Journal Article
    ISSN 1539-4522
    ISSN (online) 1539-4522
    DOI 10.1364/AO.456438
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Urinary microbiota and serum metabolite analysis in patients with diabetic kidney disease

    Yan Yang / Chiyu Ma / Shishi Li / Wanxia Cai / Weier Dai / Xinzhou Zhang / Lianghong Yin / Donge Tang / Fanna Liu / Yong Dai

    Heliyon, Vol 9, Iss 8, Pp e17040- (2023)

    2023  

    Abstract: Background: Diabetic kidney disease (DKD) is a common and potentially fatal consequence of diabetes. Chronic renal failure or end-stage renal disease may result over time. Numerous studies have demonstrated the function of the microbiota in health and ... ...

    Abstract Background: Diabetic kidney disease (DKD) is a common and potentially fatal consequence of diabetes. Chronic renal failure or end-stage renal disease may result over time. Numerous studies have demonstrated the function of the microbiota in health and disease. The use of advanced urine culture techniques revealed the presence of resident microbiota in the urinary tract, undermining the idea of urine sterility. Studies have demonstrated that the urine microbiota is related with urological illnesses; nevertheless, the fundamental mechanisms by which the urinary microbiota influences the incidence and progression of DKD remain unclear. The purpose of this research was to describe key characteristics of the patients with DKD urinary microbiota in order to facilitate the development of diagnostic and therapeutic for DKD. Methods: We evaluated the structure and composition of the microbiota extracted from urine samples taken from DKD patients (n = 19) and matched healthy controls (n = 15) using 16S rRNA gene sequencing. Meanwhile, serum metabolite profiles were compared using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Associations between clinical characteristics, urine microbiota, and serum metabolites were also examined. Finally, the interaction between urine microbiota and serum metabolites was clarified based on differential metabolite abundance analysis. Results: The findings indicated that the DKD had a distinct urinary microbiota from the healthy controls (HC). Taxonomic investigations indicated that the DKD microbiome had less alpha diversity than a control group. Proteobacteria and Acidobacteria phyla increased in the DKD, while Firmicutes and Bacteroidetes decreased significantly (P < 0.05). Acidobacteria was the most prevalent microbiota in the DKD, as determined by the Linear discriminant analysis Effect Size (LEfSe) plot. Changes in the urinary microbiota of DKD also had an effect on the makeup of metabolites. Short-chain fatty acids (SCFAs) and protein-bound uremic toxins (PBUTs) were ...
    Keywords Diabetic kidney disease ; Urinary microbiota ; Serum metabolite arginine ; Proline metabolism ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Subject code 610
    Language English
    Publishing date 2023-08-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article: Urinary microbiota and serum metabolite analysis in patients with diabetic kidney disease.

    Yang, Yan / Ma, Chiyu / Li, Shishi / Cai, Wanxia / Dai, Weier / Zhang, Xinzhou / Yin, Lianghong / Donge Tang / Liu, Fanna / Dai, Yong

    Heliyon

    2023  Volume 9, Issue 8, Page(s) e17040

    Abstract: Background: Diabetic kidney disease (DKD) is a common and potentially fatal consequence of diabetes. Chronic renal failure or end-stage renal disease may result over time. Numerous studies have demonstrated the function of the microbiota in health and ... ...

    Abstract Background: Diabetic kidney disease (DKD) is a common and potentially fatal consequence of diabetes. Chronic renal failure or end-stage renal disease may result over time. Numerous studies have demonstrated the function of the microbiota in health and disease. The use of advanced urine culture techniques revealed the presence of resident microbiota in the urinary tract, undermining the idea of urine sterility. Studies have demonstrated that the urine microbiota is related with urological illnesses; nevertheless, the fundamental mechanisms by which the urinary microbiota influences the incidence and progression of DKD remain unclear. The purpose of this research was to describe key characteristics of the patients with DKD urinary microbiota in order to facilitate the development of diagnostic and therapeutic for DKD.
    Methods: We evaluated the structure and composition of the microbiota extracted from urine samples taken from DKD patients (n = 19) and matched healthy controls (n = 15) using 16S rRNA gene sequencing. Meanwhile, serum metabolite profiles were compared using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Associations between clinical characteristics, urine microbiota, and serum metabolites were also examined. Finally, the interaction between urine microbiota and serum metabolites was clarified based on differential metabolite abundance analysis.
    Results: The findings indicated that the DKD had a distinct urinary microbiota from the healthy controls (HC). Taxonomic investigations indicated that the DKD microbiome had less alpha diversity than a control group. Proteobacteria and Acidobacteria phyla increased in the DKD, while Firmicutes and Bacteroidetes decreased significantly (
    Conclusions: This study placed the urinary microbiota and serum metabolite of DKD patients into a functional framework and identified the most abundant microbiota in DKD (Proteobacteria and Acidobacteria). Arginine metabolites may have a major effect on DKD patients, which correlated with the progression of DKD.
    Language English
    Publishing date 2023-07-03
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e17040
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: BRAF mutation is associated with poor clinicopathological outcomes in colorectal cancer

    Yujie Li / Weier Li

    Saudi Journal of Gastroenterology, Vol 23, Iss 3, Pp 144-

    A meta-analysis

    2017  Volume 149

    Abstract: Background/Aims: The clinical relevance of the BRAF mutation in colorectal carcinoma (CRC) remains controversial. We performed a comprehensive meta-analysis to evaluate the precise relationship of BRAF mutation to clinicopathological features. Materials ... ...

    Abstract Background/Aims: The clinical relevance of the BRAF mutation in colorectal carcinoma (CRC) remains controversial. We performed a comprehensive meta-analysis to evaluate the precise relationship of BRAF mutation to clinicopathological features. Materials and Methods: A systematic search of the electronic databases, including PubMed, the Web of Knowledge, and the China Journal Net was performed between January 2005 and December 2015. Outcomes of interest included gender, tumor site, tumor differentiation, node involvement, tumor size, and AJCC stage. We calculated the pooled odds ratios (ORs) or risk ratios with 95% confidence intervals (CIs) for each study using a random or fixed-effect model. Results: Twenty-five studies with a total of 13208 patients were included. BRAF mutation-positive CRC patients were 1464 (11.1%). Our meta-analysis revealed that, in patients with CRC, the BRAF mutation was associated with female, proximal site, poor differentiation, >5 cm size, and advanced AJCC stage. Conclusions: This meta-analysis demonstrated that BRAF mutation was closely related to adverse pathological features and poor outcome of CRC.
    Keywords BRAF mutation ; clinicopathological outcomes ; colorectal cancer ; meta-analysis ; Diseases of the digestive system. Gastroenterology ; RC799-869 ; Specialties of internal medicine ; RC581-951 ; Internal medicine ; RC31-1245 ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2017-01-01T00:00:00Z
    Publisher Medknow Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: BRAF

    Li, Yujie / Li, Weier

    Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association

    2017  Volume 23, Issue 3, Page(s) 144–149

    Abstract: Background/aims: The clinical relevance of the BRAF mutation in colorectal carcinoma (CRC) remains controversial. We performed a comprehensive meta-analysis to evaluate the precise relationship of BRAF mutation to clinicopathological features.: ... ...

    Abstract Background/aims: The clinical relevance of the BRAF mutation in colorectal carcinoma (CRC) remains controversial. We performed a comprehensive meta-analysis to evaluate the precise relationship of BRAF mutation to clinicopathological features.
    Materials and methods: A systematic search of the electronic databases, including PubMed, the Web of Knowledge, and the China Journal Net was performed between January 2005 and December 2015. Outcomes of interest included gender, tumor site, tumor differentiation, node involvement, tumor size, and AJCC stage. We calculated the pooled odds ratios (ORs) or risk ratios with 95% confidence intervals (CIs) for each study using a random or fixed-effect model.
    Results: Twenty-five studies with a total of 13208 patients were included. BRAF mutation-positive CRC patients were 1464 (11.1%). Our meta-analysis revealed that, in patients with CRC, the BRAF mutation was associated with female, proximal site, poor differentiation, >5 cm size, and advanced AJCC stage.
    Conclusions: This meta-analysis demonstrated that BRAF mutation was closely related to adverse pathological features and poor outcome of CRC.
    Language English
    Publishing date 2017-05
    Publishing country India
    Document type Journal Article ; Review
    ZDB-ID 2299174-8
    ISSN 1998-4049 ; 1319-3767
    ISSN (online) 1998-4049
    ISSN 1319-3767
    DOI 10.4103/1319-3767.207712
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Hash-Based Hierarchical Caching and Layered Filtering for Interactive Previews in Global Illumination Rendering

    Thorsten Roth / Martin Weier / Pablo Bauszat / André Hinkenjann / Yongmin Li

    Computers, Vol 9, Iss 1, p

    2020  Volume 17

    Abstract: Modern Monte-Carlo-based rendering systems still suffer from the computational complexity involved in the generation of noise-free images, making it challenging to synthesize interactive previews. We present a framework suited for rendering such previews ...

    Abstract Modern Monte-Carlo-based rendering systems still suffer from the computational complexity involved in the generation of noise-free images, making it challenging to synthesize interactive previews. We present a framework suited for rendering such previews of static scenes using a caching technique that builds upon a linkless octree. Our approach allows for memory-efficient storage and constant-time lookup to cache diffuse illumination at multiple hitpoints along the traced paths. Non-diffuse surfaces are dealt with in a hybrid way in order to reconstruct view-dependent illumination while maintaining interactive frame rates. By evaluating the visual fidelity against ground truth sequences and by benchmarking, we show that our approach compares well to low-noise path-traced results, but with a greatly reduced computational complexity, allowing for interactive frame rates. This way, our caching technique provides a useful tool for global illumination previews and multi-view rendering.
    Keywords ray tracing ; global illumination ; level-of-detail ; caching ; rendering ; Electronic computers. Computer science ; QA75.5-76.95
    Language English
    Publishing date 2020-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: Polymeric micelle-based nanoagents enable phototriggering combined chemotherapy and photothermal therapy with high sensitivity.

    Li, Xiaojuan / Bao, Weier / Liu, Ming / Meng, Jiaqi / Wang, Zicheng / Sun, Mingqi / Zhang, Liaoyun / Tian, Zhiyuan

    Biomaterials science

    2022  Volume 10, Issue 19, Page(s) 5520–5534

    Abstract: A new type of polymeric nanomicelle-based nanoagent (denoted as PT@MFH hereafter) capable of the highly sensitive release of the chemotherapeutic drug paclitaxel (PTX) upon exposure to a near-infrared (NIR) laser trigger was developed. Specifically, PTX ... ...

    Abstract A new type of polymeric nanomicelle-based nanoagent (denoted as PT@MFH hereafter) capable of the highly sensitive release of the chemotherapeutic drug paclitaxel (PTX) upon exposure to a near-infrared (NIR) laser trigger was developed. Specifically, PTX and a photothermal polymer (T-DPPT) were encapsulated in the cavity of nanomicelles, which were constructed from an amphiphilic block copolymer (PCL-PEEP) with a lower critical solution temperature (LCST) of ∼54 °C. Owing to the unprecedented ability of the T-DPPT moiety to harvest near-infrared light, with a mass extinction coefficient at 808 nm of up to ∼80.8 L g
    MeSH term(s) Animals ; Cell Line, Tumor ; Hyperthermia, Induced ; Infrared Rays ; Mice ; Mice, Inbred BALB C ; Micelles ; Nanoparticles ; Neoplasms/drug therapy ; Paclitaxel/pharmacology ; Paclitaxel/therapeutic use ; Phototherapy ; Photothermal Therapy ; Polymers
    Chemical Substances Micelles ; Polymers ; Paclitaxel (P88XT4IS4D)
    Language English
    Publishing date 2022-09-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 2693928-9
    ISSN 2047-4849 ; 2047-4830
    ISSN (online) 2047-4849
    ISSN 2047-4830
    DOI 10.1039/d2bm00652a
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: Polymeric micelle-based nanoagents enable phototriggering combined chemotherapy and photothermal therapy with high sensitivity

    Li, Xiaojuan / Bao, Weier / Liu, Ming / Meng, Jiaqi / Wang, Zicheng / Sun, Mingqi / Zhang, Liaoyun / Tian, Zhiyuan

    Biomaterials science. 2022 Sept. 27, v. 10, no. 19

    2022  

    Abstract: A new type of polymeric nanomicelle-based nanoagent (denoted as PT@MFH hereafter) capable of the highly sensitive release of the chemotherapeutic drug paclitaxel (PTX) upon exposure to a near-infrared (NIR) laser trigger was developed. Specifically, PTX ... ...

    Abstract A new type of polymeric nanomicelle-based nanoagent (denoted as PT@MFH hereafter) capable of the highly sensitive release of the chemotherapeutic drug paclitaxel (PTX) upon exposure to a near-infrared (NIR) laser trigger was developed. Specifically, PTX and a photothermal polymer (T-DPPT) were encapsulated in the cavity of nanomicelles, which were constructed from an amphiphilic block copolymer (PCL-PEEP) with a lower critical solution temperature (LCST) of ∼54 °C. Owing to the unprecedented ability of the T-DPPT moiety to harvest near-infrared light, with a mass extinction coefficient at 808 nm of up to ∼80.8 L g⁻¹ cm⁻¹, and convert NIR light to heat, with a photothermal conversion efficiency (η) of up to ∼70%, local hyperthermia was promptly realized via irradiation from an 808 nm laser with extraordinarily low output power. This enabled remarkable contrast in the local temperature and drug release between the “silent” state (prior to phototriggering) and the “activated” state (after phototriggering). This NIR-light-activated local hyperthermia and drug release presented the basis for combined chemotherapy and photothermal therapy (PTT) in antitumor treatment and displayed superb therapeutic efficacy. This pattern together with the high spatial precision imparted by laser triggering jointly contributed to the maximum combined antitumor efficacy to the tumor, while exhibiting minimal side effects on the normal tissues, as preliminarily verified in the in vivo experiment regarding the ability of PT@MFH to efficiently inhibit tumor growth in tumor-bearing model mice.
    Keywords biocompatible materials ; composite polymers ; drug therapy ; drugs ; fever ; irradiation ; micelles ; moieties ; neoplasms ; paclitaxel ; photothermotherapy
    Language English
    Dates of publication 2022-0927
    Size p. 5520-5534.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 2693928-9
    ISSN 2047-4849 ; 2047-4830
    ISSN (online) 2047-4849
    ISSN 2047-4830
    DOI 10.1039/d2bm00652a
    Database NAL-Catalogue (AGRICOLA)

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  10. Article: Multiomics landscape of the autosomal dominant osteopetrosis type II disease-specific induced pluripotent stem cells

    Li, Chunhong / Shangguan, Yu / Zhu, Peng / Dai, Weier / Tang, Donge / Ou, Minglin / Dai, Yong

    Hereditas. 2021 Dec., v. 158, no. 1

    2021  

    Abstract: BACKGROUND: Autosomal dominant osteopetrosis type II (ADO2) is a genetically and phenotypically metabolic bone disease, caused by osteoclast abnormalities. The pathways dysregulated in ADO2 could lead to the defects in osteoclast formation and function. ... ...

    Abstract BACKGROUND: Autosomal dominant osteopetrosis type II (ADO2) is a genetically and phenotypically metabolic bone disease, caused by osteoclast abnormalities. The pathways dysregulated in ADO2 could lead to the defects in osteoclast formation and function. However, the mechanism remains elusive. MATERIALS AND METHODS: To systematically explore the molecular characterization of ADO2, we performed a multi-omics profiling from the autosomal dominant osteopetrosis type II iPSCs (ADO2-iPSCs) and healthy normal control iPSCs (NC-iPSCs) using whole genome re-sequencing, DNA methylation and N6-methyladenosine (m6A) analysis in this study. RESULTS: Totally, we detected 7,095,817 single nucleotide polymorphisms (SNPs) and 1,179,573 insertion and deletions (InDels), 1,001,943 differentially methylated regions (DMRs) and 2984 differential m6A peaks, and the comprehensive multi-omics profile was generated from the two cells. Interestingly, the ISG15 m6A level in ADO2-iPSCs is higher than NC-iPSCs by IGV software, and the differentially expressed m6A-modified genes (DEMGs) were highly enriched in the osteoclast differentiation and p53 signaling pathway, which associated with the development of osteopetrosis. In addition, combining our previously published transcriptome and proteome datasets, we found that the change in DNA methylation levels correlates inversely with some gene expression levels. CONCLUSION: Our results indicate that the global multi-omics landscape not only provides a high-quality data resource but also reveals a dynamic pattern of gene expression, and found that the pathogenesis of ADO2 may begin early in life.
    Keywords DNA methylation ; computer software ; data collection ; developmental orthopedic disease ; gene expression ; landscapes ; multiomics ; osteoclasts ; pathogenesis ; proteome ; sequence analysis ; transcriptome
    Language English
    Dates of publication 2021-12
    Size p. 40.
    Publishing place BioMed Central
    Document type Article
    ZDB-ID 214294-6
    ISSN 1601-5223 ; 0018-0661
    ISSN (online) 1601-5223
    ISSN 0018-0661
    DOI 10.1186/s41065-021-00204-x
    Database NAL-Catalogue (AGRICOLA)

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