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  1. Article ; Online: ICARUS v3, a massively scalable web server for single-cell RNA-seq analysis of millions of cells.

    Jiang, Andrew / Snell, Russell G / Lehnert, Klaus

    Bioinformatics (Oxford, England)

    2024  Volume 40, Issue 4

    Abstract: Motivation: In recent years, improvements in throughput of single-cell RNA-seq have resulted in a significant increase in the number of cells profiled. The generation of single-cell RNA-seq datasets comprising >1 million cells is becoming increasingly ... ...

    Abstract Motivation: In recent years, improvements in throughput of single-cell RNA-seq have resulted in a significant increase in the number of cells profiled. The generation of single-cell RNA-seq datasets comprising >1 million cells is becoming increasingly common, giving rise to demands for more efficient computational workflows.
    Results: We present an update to our single-cell RNA-seq analysis web server application, ICARUS (available at https://launch.icarus-scrnaseq.cloud.edu.au) that allows effective analysis of large-scale single-cell RNA-seq datasets. ICARUS v3 utilizes the geometric cell sketching method to subsample cells from the overall dataset for dimensionality reduction and clustering that can be then projected to the large dataset. We then extend this functionality to select a representative subset of cells for downstream data analysis applications including differential expression analysis, gene co-expression network construction, gene regulatory network construction, trajectory analysis, cell-cell communication inference, and cell cluster associations to GWAS traits. We demonstrate analysis of single-cell RNA-seq datasets using ICARUS v3 of 1.3 million cells completed within the hour.
    Availability and implementation: ICARUS is available at https://launch.icarus-scrnaseq.cloud.edu.au.
    MeSH term(s) Algorithms ; Sequence Analysis, RNA/methods ; Single-Cell Gene Expression Analysis ; Single-Cell Analysis/methods ; Software ; Cluster Analysis ; Gene Expression Profiling/methods
    Language English
    Publishing date 2024-03-13
    Publishing country England
    Document type Journal Article
    ZDB-ID 1422668-6
    ISSN 1367-4811 ; 1367-4803
    ISSN (online) 1367-4811
    ISSN 1367-4803
    DOI 10.1093/bioinformatics/btae167
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Delineation of complex gene expression patterns in single cell RNA-seq data with ICARUS v2.0.

    Jiang, Andrew / You, Linya / Snell, Russell G / Lehnert, Klaus

    NAR genomics and bioinformatics

    2023  Volume 5, Issue 2, Page(s) lqad032

    Abstract: Complex biological traits and disease often involve patterns of gene expression that can be characterised and examined. Here we present ICARUS v2.0, an update to our single cell RNA-seq analysis web server with additional tools to investigate gene ... ...

    Abstract Complex biological traits and disease often involve patterns of gene expression that can be characterised and examined. Here we present ICARUS v2.0, an update to our single cell RNA-seq analysis web server with additional tools to investigate gene networks and understand core patterns of gene regulation in relation to biological traits. ICARUS v2.0 enables gene co-expression analysis with MEGENA, transcription factor regulated network identification with SCENIC, trajectory analysis with Monocle3, and characterisation of cell-cell communication with CellChat. Cell cluster gene expression profiles may be examined against Genome Wide Association Studies with MAGMA to find significant associations with GWAS traits. Additionally, differentially expressed genes may be compared against the Drug-Gene Interaction database (DGIdb 4.0) to facilitate drug discovery. ICARUS v2.0 offers a comprehensive toolbox of the latest single cell RNA-seq analysis methodologies packed into an efficient, user friendly, tutorial style web server application (accessible at https://launch.icarus-scrnaseq.cloud.edu.au/) that enables single cell RNA-seq analysis tailored to the user's dataset.
    Language English
    Publishing date 2023-03-29
    Publishing country England
    Document type Journal Article
    ISSN 2631-9268
    ISSN (online) 2631-9268
    DOI 10.1093/nargab/lqad032
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: From Pathogenesis to Therapeutics: A Review of 150 Years of Huntington's Disease Research.

    Jiang, Andrew / Handley, Renee R / Lehnert, Klaus / Snell, Russell G

    International journal of molecular sciences

    2023  Volume 24, Issue 16

    Abstract: Huntington's disease (HD) is a debilitating neurodegenerative genetic disorder caused by an expanded polyglutamine-coding (CAG) trinucleotide repeat in the huntingtin ( ...

    Abstract Huntington's disease (HD) is a debilitating neurodegenerative genetic disorder caused by an expanded polyglutamine-coding (CAG) trinucleotide repeat in the huntingtin (
    MeSH term(s) Humans ; Huntington Disease/genetics ; Huntington Disease/therapy ; Caudate Nucleus ; Heredodegenerative Disorders, Nervous System ; Cytopathogenic Effect, Viral ; Dopamine ; Mutant Proteins
    Chemical Substances Dopamine (VTD58H1Z2X) ; Mutant Proteins
    Language English
    Publishing date 2023-08-21
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2019364-6
    ISSN 1422-0067 ; 1422-0067 ; 1661-6596
    ISSN (online) 1422-0067
    ISSN 1422-0067 ; 1661-6596
    DOI 10.3390/ijms241613021
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: ICARUS, an interactive web server for single cell RNA-seq analysis.

    Jiang, Andrew / Lehnert, Klaus / You, Linya / Snell, Russell G

    Nucleic acids research

    2022  Volume 50, Issue W1, Page(s) W427–W433

    Abstract: Here we present ICARUS, a web server to enable users without experience in R to undertake single cell RNA-seq analysis. The focal point of ICARUS is its intuitive tutorial-style user interface, designed to guide logical navigation through the multitude ... ...

    Abstract Here we present ICARUS, a web server to enable users without experience in R to undertake single cell RNA-seq analysis. The focal point of ICARUS is its intuitive tutorial-style user interface, designed to guide logical navigation through the multitude of pre-processing, analysis and visualization steps. ICARUS is easily accessible through a dedicated web server (https://launch.icarus-scrnaseq.cloud.edu.au/) and avoids installation of software on the user's computer. Notable features include the facility to apply quality control thresholds and adjust dimensionality reduction and cell clustering parameters. Data is visualized through 2D/3D UMAP and t-SNE plots and may be curated to remove potential confounders such as cell cycle heterogeneity. ICARUS offers flexible differential expression analysis with user-defined cell groups and gene set enrichment analysis to identify likely affected biological pathways. Eleven organisms including human, dog, mouse, rat, zebrafish, fruit fly, nematode, yeast, cattle, chicken and pig are currently supported. Visualization of multimodal data including those generated by CITE-seq and the 10X Genomics Multiome kit is included. ICARUS incorporates a function to save the current state of analysis avoiding computationally intensive steps during repeat analysis. The complete analysis of a typical single cell RNA-seq dataset by inexperienced users may be achieved in 1-2 h.
    MeSH term(s) Animals ; Cattle ; Dogs ; Humans ; Mice ; Rats ; Computers ; Genomics ; Sequence Analysis, RNA ; Single-Cell Analysis ; Software ; Swine ; Zebrafish
    Language English
    Publishing date 2022-05-26
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 186809-3
    ISSN 1362-4962 ; 1362-4954 ; 0301-5610 ; 0305-1048
    ISSN (online) 1362-4962 ; 1362-4954
    ISSN 0301-5610 ; 0305-1048
    DOI 10.1093/nar/gkac322
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Acceleration of Glacier Mass Loss after 2013 at the Mt. Everest (Qomolangma)

    Gang LI,Hui LIN,Qinghua YE,Liming JIANG,Andrew HOOPER, Yinyi LIN

    Journal of Geodesy and Geoinformation Science, Vol 3, Iss 4, Pp 60-

    2020  Volume 69

    Abstract: Satellite geodesy is capable of observing glacier height changes and most recent studies focus on the decadal scale due to limitations of data acquisition and precision. Glaciers at the Mt. Everest (Qomolangma), locating at the central Himalaya, have ... ...

    Abstract Satellite geodesy is capable of observing glacier height changes and most recent studies focus on the decadal scale due to limitations of data acquisition and precision. Glaciers at the Mt. Everest (Qomolangma), locating at the central Himalaya, have been studied from the 1970s to 2015. Here we obtained TerraSAR-X/TanDEM-X images observed in two epochs, a group around 2013 and another in 2017. Together with SRTM observed in 2000, we derived geodetic glacier mass balance between 2000 and 2013 and 2013 and 2017. We proposed two InSAR procedures for deriving the second period, which yields with basically identical results of geodetic glacier mass balance. The differencing between DEMs derived by TerraSAR-X/TanDEM-X shows better precision than that between TerraSAR-X/TanDEM-X formed DEM and SRTM, and it can capable of providing geodetic glacier mass balance at a sub-decadal scale. Glaciers at the Mt. Everest (Qomolangma) and its surroundings present obvious speeding up in mass loss rates before and after 2013 for both the Chinese and the Nepalese sides. The previous obtained spatial heterogeneous pattern for glacier downwasting between 2000 and 2013 generally kept the same after 2013. Glaciers with lacustrine terminus present the most rapid lost rates.
    Keywords |mt. everest (qomolangma)|geodetic glacier mass balance|terrasar-x/tandem-x|bistatic d-insar ; Science ; Q ; Geodesy ; QB275-343
    Language English
    Publishing date 2020-12-01T00:00:00Z
    Publisher Surveying and Mapping Press
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article: A Capra hircus chromosome 19 locus linked to milk production influences mammary conformation

    Jiang, Andrew / Ankersmit-Udy, Alex / Turner, Sally-Anne / Scholtens, Megan / Littlejohn, Mathew D. / Lopez-Villalobos, Nicolas / Proser, Colin G. / Snell, Russell G. / Lehnert, Klaus

    Journal of animal science and biotechnology. 2022 Dec., v. 13, no. 1

    2022  

    Abstract: BACKGROUND: Economically important milk production traits including milk volume, milk fat and protein yield vary considerably across dairy goats in New Zealand. A significant portion of the variation is attributable to genetic variation. Discovery of ... ...

    Abstract BACKGROUND: Economically important milk production traits including milk volume, milk fat and protein yield vary considerably across dairy goats in New Zealand. A significant portion of the variation is attributable to genetic variation. Discovery of genetic markers linked to milk production traits can be utilised to drive selection of high-performance animals. A previously reported genome wide association study across dairy goats in New Zealand identified a quantitative trait locus (QTL) located on chromosome 19. The most significantly associated single nucleotide polymorphism (SNP) marker for this locus is located at position 26,610,610 (SNP marker rs268292132). This locus is associated with multiple milk production traits including fat, protein and volume. The predicted effect of selection for the beneficial haplotype would result in an average production increase of 2.2 kg fat, 1.9 kg protein and 73.6 kg milk yield. An outstanding question was whether selection for the beneficial allele would co-select for any negative pleiotropic effects. An adverse relationship between milk production and udder health traits has been reported at this locus. Therefore, a genome wide association study was undertaken looking for loci associated with udder traits. RESULTS: The QTL and production associated marker rs268292132 was identified in this study to also be associated with several goat udder traits including udder depth (UD), fore udder attachment (FUA) and rear udder attachment (RUA). Our study replicates the negative relationship between production and udder traits with the high production allele at position 19:26,610,610 (SNP marker rs268292132) associated with an adverse change in UD, FUA and RUA. CONCLUSIONS: Our study has confirmed the negative relationship between udder traits and production traits in the NZ goat population. We have found that the frequency of the high production allele is relatively high in the NZ goat population, indicating that its effect on udder conformation is not significantly detrimental on animal health. It will however be important to monitor udder conformation as the chromosome 19 locus is progressively implemented for marker assisted selection. It will also be of interest to determine if the gene underlying the production QTL has a direct effect on mammary gland morphology or whether the changes observed are a consequence of the increased milk volume.
    Keywords Capra hircus ; alleles ; animal health ; biotechnology ; genetic variation ; genome-wide association study ; haplotypes ; loci ; mammary glands ; milk ; milk fat ; milk yield ; quantitative trait loci ; single nucleotide polymorphism ; udders ; New Zealand
    Language English
    Dates of publication 2022-12
    Size p. 4.
    Publishing place BioMed Central
    Document type Article
    ZDB-ID 2630162-3
    ISSN 2049-1891 ; 1674-9782
    ISSN (online) 2049-1891
    ISSN 1674-9782
    DOI 10.1186/s40104-021-00667-y
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Rescheduling codeine-containing analgesics reduced codeine-related hospital presentations.

    Harris, Keith / Jiang, Andrew / Knoeckel, Robert / Isoardi, Katherine Z

    The Medical journal of Australia

    2019  Volume 212, Issue 7, Page(s) 328

    MeSH term(s) Analgesics, Opioid/poisoning ; Codeine/poisoning ; Drug Overdose/epidemiology ; Drug and Narcotic Control/legislation & jurisprudence ; Humans ; Nonprescription Drugs/poisoning ; Queensland/epidemiology ; Retrospective Studies
    Chemical Substances Analgesics, Opioid ; Nonprescription Drugs ; Codeine (Q830PW7520)
    Language English
    Publishing date 2019-11-10
    Publishing country Australia
    Document type Letter
    ZDB-ID 186082-3
    ISSN 1326-5377 ; 0025-729X
    ISSN (online) 1326-5377
    ISSN 0025-729X
    DOI 10.5694/mja2.50400
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Dual-Tracer Positron-Emission Tomography Using Prostate-Specific Membrane Antigen and Fluorodeoxyglucose for Staging of Prostate Cancer: A Systematic Review.

    McGeorge, Stephen / Kwok, Michael / Jiang, Andrew / Emmett, Louise / Pattison, David A / Thomas, Paul A / Yaxley, John W / Roberts, Matthew J

    Advances in urology

    2021  Volume 2021, Page(s) 1544208

    Abstract: PSMA PET is more accurate than conventional imaging (CT/bone scan) for staging of intermediate- or high-risk prostate cancer (PCa), but 5-10% of primary tumours have low PSMA ligand uptake. FDG PET has been used to further define disease extent in end- ... ...

    Abstract PSMA PET is more accurate than conventional imaging (CT/bone scan) for staging of intermediate- or high-risk prostate cancer (PCa), but 5-10% of primary tumours have low PSMA ligand uptake. FDG PET has been used to further define disease extent in end-stage castrate-resistant PCa and may be beneficial earlier in the disease course for more accurate staging. The objective of this study was to review the available evidence for patients undergoing both FDG and PSMA PET for PCa staging at initial diagnosis and in recurrent disease. A systematic literature review was performed for studies with direct, intraindividual comparison of PSMA and FDG PET for staging of PCa. Assessment for radioligand therapy eligibility was not considered. Risk of bias was assessed. 543 citations were screened and assessed. 13 case reports, three retrospective studies, and one prospective study were included. FDG after PSMA PET improved the detection of metastases from 65% to 73% in high-risk early castration-resistant PCa with negative conventional imaging (M0). Positive FDG PET was found in 17% of men with negative PSMA PET for postprostatectomy biochemical recurrence. Gleason score ≥8 and higher PSA levels predicted FDG-avid metastases in BCR and primary staging. Variant histology (ductal and neuroendocrine) was common in case reports, resulting in PSMA-negative FDG-positive imaging for 3 patients. Dual-tracer PET for PCa may assist in characterising high-risk disease during primary staging and restaging. Further studies are required to determine the additive benefit of FDG PET and if the FDG-positive phenotype may indicate a poorer prognosis.
    Language English
    Publishing date 2021-08-18
    Publishing country Egypt
    Document type Journal Article ; Review
    ZDB-ID 2397564-7
    ISSN 1687-6377 ; 1687-6369
    ISSN (online) 1687-6377
    ISSN 1687-6369
    DOI 10.1155/2021/1544208
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: MAdCAM-1 Co-stimulation Combined with Retinoic Acid and TGF-β Induces Blood CD8

    Girard, Alexandre / Vimonpatranon, Sinmanus / Chan, Amanda / Jiang, Andrew / Wei Huang, Da / Virtaneva, Kimmo / Kanakabandi, Kishore / Martens, Craig / Goes, Livia R / Soares, Marcelo / Licavoli, Isabella / McMurry, Jordan / Doan, Pearl / Wertz, Samuel / Wei, Danlan / Van Ryk, Donald / Ganesan, Sundar / Young Hwang, Il / Kehrl, John H /
    Martinelli, Elena / Arthos, James / Cicala, Claudia

    Mucosal immunology

    2024  

    Abstract: Resident memory T cells ( ... ...

    Abstract Resident memory T cells (T
    Language English
    Publishing date 2024-05-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2411370-0
    ISSN 1935-3456 ; 1933-0219
    ISSN (online) 1935-3456
    ISSN 1933-0219
    DOI 10.1016/j.mucimm.2024.04.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: A Capra hircus chromosome 19 locus linked to milk production influences mammary conformation.

    Jiang, Andrew / Ankersmit-Udy, Alex / Turner, Sally-Anne / Scholtens, Megan / Littlejohn, Mathew D / Lopez-Villalobos, Nicolas / Proser, Colin G / Snell, Russell G / Lehnert, Klaus

    Journal of animal science and biotechnology

    2022  Volume 13, Issue 1, Page(s) 4

    Abstract: Background: Economically important milk production traits including milk volume, milk fat and protein yield vary considerably across dairy goats in New Zealand. A significant portion of the variation is attributable to genetic variation. Discovery of ... ...

    Abstract Background: Economically important milk production traits including milk volume, milk fat and protein yield vary considerably across dairy goats in New Zealand. A significant portion of the variation is attributable to genetic variation. Discovery of genetic markers linked to milk production traits can be utilised to drive selection of high-performance animals. A previously reported genome wide association study across dairy goats in New Zealand identified a quantitative trait locus (QTL) located on chromosome 19. The most significantly associated single nucleotide polymorphism (SNP) marker for this locus is located at position 26,610,610 (SNP marker rs268292132). This locus is associated with multiple milk production traits including fat, protein and volume. The predicted effect of selection for the beneficial haplotype would result in an average production increase of 2.2 kg fat, 1.9 kg protein and 73.6 kg milk yield. An outstanding question was whether selection for the beneficial allele would co-select for any negative pleiotropic effects. An adverse relationship between milk production and udder health traits has been reported at this locus. Therefore, a genome wide association study was undertaken looking for loci associated with udder traits.
    Results: The QTL and production associated marker rs268292132 was identified in this study to also be associated with several goat udder traits including udder depth (UD), fore udder attachment (FUA) and rear udder attachment (RUA). Our study replicates the negative relationship between production and udder traits with the high production allele at position 19:26,610,610 (SNP marker rs268292132) associated with an adverse change in UD, FUA and RUA.
    Conclusions: Our study has confirmed the negative relationship between udder traits and production traits in the NZ goat population. We have found that the frequency of the high production allele is relatively high in the NZ goat population, indicating that its effect on udder conformation is not significantly detrimental on animal health. It will however be important to monitor udder conformation as the chromosome 19 locus is progressively implemented for marker assisted selection. It will also be of interest to determine if the gene underlying the production QTL has a direct effect on mammary gland morphology or whether the changes observed are a consequence of the increased milk volume.
    Language English
    Publishing date 2022-02-11
    Publishing country England
    Document type Journal Article
    ZDB-ID 2630162-3
    ISSN 2049-1891 ; 1674-9782
    ISSN (online) 2049-1891
    ISSN 1674-9782
    DOI 10.1186/s40104-021-00667-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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