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  • 1
    In: Journal of Genetics and Genomics, Elsevier BV, Vol. 43, No. 6 ( 2016-06), p. 369-379
    Type of Medium: Online Resource
    ISSN: 1673-8527
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2016
    detail.hit.zdb_id: 2374568-X
    SSG: 12
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  • 2
    Online Resource
    Online Resource
    Wiley ; 2021
    In:  Methods in Ecology and Evolution Vol. 12, No. 7 ( 2021-07), p. 1240-1251
    In: Methods in Ecology and Evolution, Wiley, Vol. 12, No. 7 ( 2021-07), p. 1240-1251
    Abstract: Protein quantification is a routine procedure in ecological studies despite the inherent limitations of well‐acknowledged protein determination methods which have been largely overlooked by ecologists. Thus, we want to bridge this knowledge gap, in hopes of improving the way ecologists quantify proteins and interpret findings. We surveyed the ecological literature to determine how and why ecologists quantify proteins. To determine whether different quantification methods produce comparable results across taxa, and between populations of a single species, we estimated the protein content of eight phylogenetically diverse taxa, and of desert isopods fed different diets, using various derived protocols of the 'crude protein', Bradford and bicinchoninic acid approach (BCA) methods. We found that ecologists use many protein quantification procedures, often without reporting the crucial information needed to evaluate and repeat their methods. Our empirical work demonstrated that the three quantification methods examined, and their derived protocols, resulted in highly divergent protein estimations that were inconsistent in rank across taxa, preventing conversion between methods. We also found that different quantification methods yielded different answers to whether isopod protein content is affected by diet. We conclude that commonly used quantification techniques yield distinct protein estimations with varying precision, and no single method is likely to be more accurate than another across taxa which may lead to inconsistent results across taxa and between conspecifics. Inaccurate protein quantification may explain the observed mismatch between organismal N and protein that has plagued some recent studies and that contradicts the principles of ecological stoichiometry. We recommend using a single BCA protocol to reduce inconsistencies across studies, until the promising amino acid analysis becomes more affordable, accurate and accessible to ecologists. Until then, ecologists should consider the abovementioned drawbacks of protein quantification methods and interpret their results accordingly.
    Type of Medium: Online Resource
    ISSN: 2041-210X , 2041-210X
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2528492-7
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  • 3
    In: Nature Cell Biology, Springer Science and Business Media LLC, Vol. 18, No. 9 ( 2016-9), p. 1006-1017
    Type of Medium: Online Resource
    ISSN: 1465-7392 , 1476-4679
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2016
    detail.hit.zdb_id: 1494945-3
    SSG: 12
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  • 4
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2023
    In:  BMC Biology Vol. 21, No. 1 ( 2023-04-07)
    In: BMC Biology, Springer Science and Business Media LLC, Vol. 21, No. 1 ( 2023-04-07)
    Abstract: Among the major challenges in next-generation sequencing experiments are exploratory data analysis, interpreting trends, identifying potential targets/candidates, and visualizing the results clearly and intuitively. These hurdles are further heightened for researchers who are not experienced in writing computer code since most available analysis tools require programming skills. Even for proficient computational biologists, an efficient and replicable system is warranted to generate standardized results. Results We have developed RNAlysis , a modular Python-based analysis software for RNA sequencing data. RNAlysis allows users to build customized analysis pipelines suiting their specific research questions, going all the way from raw FASTQ files (adapter trimming, alignment, and feature counting), through exploratory data analysis and data visualization, clustering analysis, and gene set enrichment analysis. RNAlysis provides a friendly graphical user interface, allowing researchers to analyze data without writing code. We demonstrate the use of RNAlysis by analyzing RNA sequencing data from different studies using C. elegans nematodes. We note that the software applies equally to data obtained from any organism with an existing reference genome. Conclusions RNAlysis is suitable for investigating various biological questions, allowing researchers to more accurately and reproducibly run comprehensive bioinformatic analyses. It functions as a gateway into RNA sequencing analysis for less computer-savvy researchers, but can also help experienced bioinformaticians make their analyses more robust and efficient, as it offers diverse tools, scalability, automation, and standardization between analyses.
    Type of Medium: Online Resource
    ISSN: 1741-7007
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2023
    detail.hit.zdb_id: 2133020-7
    SSG: 12
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  • 5
    Online Resource
    Online Resource
    Wiley ; 2022
    In:  Oikos Vol. 2022, No. 7 ( 2022-07)
    In: Oikos, Wiley, Vol. 2022, No. 7 ( 2022-07)
    Abstract: Trophic interactions play a critical role in regulating ecosystem functioning. Advances in trophic ecology have shifted the focus from characterizing resources based on a single ‘currency' such as energy or biomass to more complex multidimensional approaches that consider the resource quality, hence require detailed estimation of different nutrients. For this purpose, ecologists use a wide plethora of extraction and quantification methods that differ substantially in precision and accuracy and vary in efficiency across sample types and taxa. Yet, ecologists seem largely oblivious to these methodological drawbacks and their severe theoretical implications. Focusing on the three main macro‐nutrients groups; proteins, lipids and carbohydrates, we provided an overview of the main extraction and quantification methods and their inherent limitations, and discussed possible consequences for ecology research and theory development. We urge ecologists to adopt a standard method for estimating each macronutrient group or to use multiple methods when feasible, until more accurate and precise chromatographic methods become accessible. We hope that our study will raise awareness to the many shortcomings of macro‐nutrient estimations to assist in strengthening and further developing the important field of trophic ecology.
    Type of Medium: Online Resource
    ISSN: 0030-1299 , 1600-0706
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2025658-9
    detail.hit.zdb_id: 207359-6
    SSG: 12
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  • 6
    Online Resource
    Online Resource
    Proceedings of the National Academy of Sciences ; 2009
    In:  Proceedings of the National Academy of Sciences Vol. 106, No. 35 ( 2009-09), p. 14990-14995
    In: Proceedings of the National Academy of Sciences, Proceedings of the National Academy of Sciences, Vol. 106, No. 35 ( 2009-09), p. 14990-14995
    Abstract: The recent progress made in the bioengineering of cardiac patches offers a new therapeutic modality for regenerating the myocardium after myocardial infarction (MI). We present here a strategy for the engineering of a cardiac patch with mature vasculature by heterotopic transplantation onto the omentum. The patch was constructed by seeding neonatal cardiac cells with a mixture of prosurvival and angiogenic factors into an alginate scaffold capable of factor binding and sustained release. After 48 h in culture, the patch was vascularized for 7 days on the omentum, then explanted and transplanted onto infarcted rat hearts, 7 days after MI induction. When evaluated 28 days later, the vascularized cardiac patch showed structural and electrical integration into host myocardium. Moreover, the vascularized patch induced thicker scars, prevented further dilatation of the chamber and ventricular dysfunction. Thus, our study provides evidence that grafting prevascularized cardiac patch into infarct can improve cardiac function after MI.
    Type of Medium: Online Resource
    ISSN: 0027-8424 , 1091-6490
    RVK:
    RVK:
    Language: English
    Publisher: Proceedings of the National Academy of Sciences
    Publication Date: 2009
    detail.hit.zdb_id: 209104-5
    detail.hit.zdb_id: 1461794-8
    SSG: 11
    SSG: 12
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