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Segota I, Watrous JD, Kantz ED, Nallamshetty S, Tiwari S, Cheng S, Jain M, Long T. Reconstructing the landscape of gut microbial species across 29,000 diverse individuals. Nucleic Acids Res 2023; 51:4178-4190. [PMID: 37070603 DOI: 10.1093/nar/gkad249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 04/19/2023] Open
Abstract
The human gut microbiome has been linked to health and disease. Investigation of the human microbiome has largely employed 16S amplicon sequencing, with limited ability to distinguish microbes at the species level. Herein, we describe the development of Reference-based Exact Mapping (RExMap) of microbial amplicon variants that enables mapping of microbial species from standard 16S sequencing data. RExMap analysis of 16S data captures ∼75% of microbial species identified by whole-genome shotgun sequencing, despite hundreds-fold less sequencing depth. RExMap re-analysis of existing 16S data from 29,349 individuals across 16 regions from around the world reveals a detailed landscape of gut microbial species across populations and geography. Moreover, RExMap identifies a core set of fifteen gut microbes shared by humans. Core microbes are established soon after birth and closely associate with BMI across multiple independent studies. RExMap and the human microbiome dataset are presented as resources with which to explore the role of the human microbiome.
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Affiliation(s)
- Igor Segota
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Jeramie D Watrous
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Edward D Kantz
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | | | - Saumya Tiwari
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Susan Cheng
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA
| | - Mohit Jain
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Tao Long
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
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2
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Balakrishnan R, Mori M, Segota I, Zhang Z, Aebersold R, Ludwig C, Hwa T. Principles of gene regulation quantitatively connect DNA to RNA and proteins in bacteria. Science 2022; 378:eabk2066. [PMID: 36480614 PMCID: PMC9804519 DOI: 10.1126/science.abk2066] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Protein concentrations are set by a complex interplay between gene-specific regulatory processes and systemic factors, including cell volume and shared gene expression machineries. Elucidating this interplay is crucial for discerning and designing gene regulatory systems. We quantitatively characterized gene-specific and systemic factors that affect transcription and translation genome-wide for Escherichia coli across many conditions. The results revealed two design principles that make regulation of gene expression insulated from concentrations of shared machineries: RNA polymerase activity is fine-tuned to match translational output, and translational characteristics are similar across most messenger RNAs (mRNAs). Consequently, in bacteria, protein concentration is set primarily at the promoter level. A simple mathematical formula relates promoter activities and protein concentrations across growth conditions, enabling quantitative inference of gene regulation from omics data.
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Affiliation(s)
- Rohan Balakrishnan
- Department of Physics, University of California at San Diego, La Jolla, California 92093-0374
| | - Matteo Mori
- Department of Physics, University of California at San Diego, La Jolla, California 92093-0374
| | - Igor Segota
- Departments of Medicine and Pharmacology, University of California at San Diego, La Jolla, California 92093
| | - Zhongge Zhang
- Section of Molecular Biology, Division of Biological Sciences, University of California at San Diego, La Jolla, California 92093
| | - Ruedi Aebersold
- Faculty of Science, University of Zurich, Zurich, Switzerland.,Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Switzerland
| | - Christina Ludwig
- Bavarian Center for Biomolecular Mass Spectrometry (BayBioMS), Technical University of Munich (TUM), Freising, Germany
| | - Terence Hwa
- Department of Physics, University of California at San Diego, La Jolla, California 92093-0374.,Section of Molecular Biology, Division of Biological Sciences, University of California at San Diego, La Jolla, California 92093.,CORRESPONDING AUTHOR: Terence Hwa ()
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3
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Segota I, Edwards MM, Campello A, Rappazzo BH, Wang X, Strandburg-Peshkin A, Zhou XQ, Rachakonda A, Daie K, Lussenhop A, Lee S, Tharratt K, Deshmukh A, Sebesta EM, Zhang M, Lau S, Bennedsen S, Ginsberg J, Campbell T, Wang C, Franck C. Confirmation and variability of the Allee effect in Dictyostelium discoideum cell populations,possible role of chemical signaling within cell clusters. Phys Biol 2021; 19. [PMID: 34942613 DOI: 10.1088/1478-3975/ac4613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Accepted: 12/23/2021] [Indexed: 11/12/2022]
Abstract
In studies of the unicellular eukaryote Dictyostelium discoideum, many have anecdotally observed that cell dilution below a certain "threshold density" causes cells to undergo a period of slow growth (lag). However, little is documented about the slow growth phase and the reason for different growth dynamics below and above this threshold density. In this paper, we extend and correct our earlier work to report an extensive set of experiments, including the use of new cell counting technology, that set this slow-to-fast growth transition on a much firmer biological basis. We show that dilution below a certain density (around 10E4 cells/ml) causes cells to grow slower on average and exhibit a large degree of variability: sometimes a sample does not lag at all, while sometimes it takes many moderate density cell cycle times to recover back to fast growth. We perform conditioned media experiments to demonstrate that a chemical signal mediates this endogenous phenomenon. Finally, we argue that while simple models involving fluid transport of signal molecules or cluster-based signaling explain typical behavior, they do not capture the high degree of variability between samples but nevertheless favor an intra-cluster mechanism.
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Affiliation(s)
- Igor Segota
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Matthew M Edwards
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Arthur Campello
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Brendan H Rappazzo
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Xiaoning Wang
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | | | - Xiao-Qiao Zhou
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Archana Rachakonda
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Kayvon Daie
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Alexander Lussenhop
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Sungsu Lee
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Kevin Tharratt
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Amrish Deshmukh
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Elisabeth M Sebesta
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Myron Zhang
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Sharon Lau
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Sarah Bennedsen
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Jared Ginsberg
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Timothy Campbell
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Chenzheng Wang
- Cornell University, Physics Dept., Ithaca, New York, 14853-0001, UNITED STATES
| | - Carl Franck
- Physics, Cornell University, Clark Hall, Ithaca, New York, 14853-0001, UNITED STATES
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4
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Li Y, Elmén L, Segota I, Xian Y, Tinoco R, Feng Y, Fujita Y, Segura Muñoz RR, Schmaltz R, Bradley LM, Ramer-Tait A, Zarecki R, Long T, Peterson SN, Ronai ZA. Prebiotic-Induced Anti-tumor Immunity Attenuates Tumor Growth. Cell Rep 2021; 30:1753-1766.e6. [PMID: 32049008 PMCID: PMC7053418 DOI: 10.1016/j.celrep.2020.01.035] [Citation(s) in RCA: 84] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Revised: 10/06/2019] [Accepted: 01/08/2020] [Indexed: 02/07/2023] Open
Abstract
Growing evidence supports the importance of gut microbiota in the control of tumor growth and response to therapy. Here, we select prebiotics that can enrich bacterial taxa that promote anti-tumor immunity. Addition of the prebiotics inulin or mucin to the diet of C57BL/6 mice induces anti-tumor immune responses and inhibition of BRAF mutant melanoma growth in a subcutaneously implanted syngeneic mouse model. Mucin fails to inhibit tumor growth in germ-free mice, indicating that the gut microbiota is required for the activation of the anti-tumor immune response. Inulin and mucin drive distinct changes in the microbiota, as inulin, but not mucin, limits tumor growth in syngeneic mouse models of colon cancer and NRAS mutant melanoma and enhances the efficacy of a MEK inhibitor against melanoma while delaying the emergence of drug resistance. We highlight the importance of gut microbiota in anti-tumor immunity and the potential therapeutic role for prebiotics in this process.
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Affiliation(s)
- Yan Li
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Lisa Elmén
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Igor Segota
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Yibo Xian
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Roberto Tinoco
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Yongmei Feng
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Yu Fujita
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Rafael R Segura Muñoz
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Robert Schmaltz
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Linda M Bradley
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Amanda Ramer-Tait
- Department of Food Science and Technology, University of Nebraska-Lincoln, Lincoln, NE 68588, USA
| | - Raphy Zarecki
- Technion Integrated Cancer Center, Faculty of Medicine, Technion, Haifa 3525433, Israel
| | - Tao Long
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Scott N Peterson
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA.
| | - Ze'ev A Ronai
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA.
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5
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Lee MH, Siddoway B, Kaeser GE, Segota I, Rivera R, Romanow WJ, Liu CS, Park C, Kennedy G, Long T, Chun J. Publisher Correction: Somatic APP gene recombination in Alzheimer's disease and normal neurons. Nature 2019; 566:E6. [PMID: 30670873 DOI: 10.1038/s41586-019-0905-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
In this Article, the top label in Fig. 5d should read 'DISH 3/16' instead of 'DISH 3/17'. This error has been corrected online.
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Affiliation(s)
- Ming-Hsiang Lee
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Benjamin Siddoway
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Gwendolyn E Kaeser
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.,Biomedical Sciences Program, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Igor Segota
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Richard Rivera
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - William J Romanow
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Christine S Liu
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.,Biomedical Sciences Program, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Chris Park
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.,Biomedical Sciences Program, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Grace Kennedy
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Tao Long
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Jerold Chun
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.
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Lee MH, Siddoway B, Kaeser GE, Segota I, Rivera R, Romanow WJ, Liu CS, Park C, Kennedy G, Long T, Chun J. Somatic APP gene recombination in Alzheimer's disease and normal neurons. Nature 2018; 563:639-645. [PMID: 30464338 DOI: 10.1038/s41586-018-0718-6] [Citation(s) in RCA: 139] [Impact Index Per Article: 23.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 10/09/2018] [Indexed: 11/09/2022]
Abstract
The diversity and complexity of the human brain are widely assumed to be encoded within a constant genome. Somatic gene recombination, which changes germline DNA sequences to increase molecular diversity, could theoretically alter this code but has not been documented in the brain, to our knowledge. Here we describe recombination of the Alzheimer's disease-related gene APP, which encodes amyloid precursor protein, in human neurons, occurring mosaically as thousands of variant 'genomic cDNAs' (gencDNAs). gencDNAs lacked introns and ranged from full-length cDNA copies of expressed, brain-specific RNA splice variants to myriad smaller forms that contained intra-exonic junctions, insertions, deletions, and/or single nucleotide variations. DNA in situ hybridization identified gencDNAs within single neurons that were distinct from wild-type loci and absent from non-neuronal cells. Mechanistic studies supported neuronal 'retro-insertion' of RNA to produce gencDNAs; this process involved transcription, DNA breaks, reverse transcriptase activity, and age. Neurons from individuals with sporadic Alzheimer's disease showed increased gencDNA diversity, including eleven mutations known to be associated with familial Alzheimer's disease that were absent from healthy neurons. Neuronal gene recombination may allow 'recording' of neural activity for selective 'playback' of preferred gene variants whose expression bypasses splicing; this has implications for cellular diversity, learning and memory, plasticity, and diseases of the human brain.
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Affiliation(s)
- Ming-Hsiang Lee
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Benjamin Siddoway
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Gwendolyn E Kaeser
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.,Biomedical Sciences Program, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Igor Segota
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Richard Rivera
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - William J Romanow
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Christine S Liu
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.,Biomedical Sciences Program, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Chris Park
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.,Biomedical Sciences Program, School of Medicine, University of California, San Diego, La Jolla, CA, USA
| | - Grace Kennedy
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Tao Long
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | - Jerold Chun
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA.
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7
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Segota I, Franck C. Extracellular Processing of Molecular Gradients by Eukaryotic Cells Can Improve Gradient Detection Accuracy. Phys Rev Lett 2017; 119:248101. [PMID: 29286727 DOI: 10.1103/physrevlett.119.248101] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2017] [Indexed: 06/07/2023]
Abstract
Eukaryotic cells sense molecular gradients by measuring spatial concentration variation through the difference in the number of occupied receptors to which molecules can bind. They also secrete enzymes that degrade these molecules, and it is presently not well understood how this affects the local gradient perceived by cells. Numerical and analytical results show that these enzymes can substantially increase the signal-to-noise ratio of the receptor difference and allow cells to respond to a much broader range of molecular concentrations and gradients than they would without these enzymes.
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Affiliation(s)
- Igor Segota
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca 14853, USA
| | - Carl Franck
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca 14853, USA
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Abstract
Unicellular eukaryotic amoebae Dictyostelium discoideum are generally believed to grow in their vegetative state as single cells until starvation, when their collective aspect emerges and they differentiate to form a multicellular slime mold. While major efforts continue to be aimed at their starvation-induced social aspect, our understanding of population dynamics and cell cycle in the vegetative growth phase has remained incomplete. Here we show that cell populations grown on a substrate spontaneously synchronize their cell cycles within several hours. These collective population-wide cell cycle oscillations span millimeter length scales and can be completely suppressed by washing away putative cell-secreted signals, implying signaling by means of a diffusible growth factor or mitogen. These observations give strong evidence for collective proliferation behavior in the vegetative state.
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Affiliation(s)
- Igor Segota
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA
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9
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Segota I, Mong S, Neidich E, Rachakonda A, Lussenhop CJ, Franck C. High fidelity information processing in folic acid chemotaxis of Dictyostelium amoebae. J R Soc Interface 2013; 10:20130606. [PMID: 24026470 DOI: 10.1098/rsif.2013.0606] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Living cells depend upon the detection of chemical signals for their existence. Eukaryotic cells can sense a concentration difference as low as a few per cent across their bodies. This process was previously suggested to be limited by the receptor-ligand binding fluctuations. Here, we first determine the chemotaxis response of Dictyostelium cells to static folic acid gradients and show that they can significantly exceed this sensitivity, responding to gradients as shallow as 0.2% across the cell body. Second, using a previously developed information theory framework, we compare the total information gained about the gradient (based on the cell response) to its upper limit: the information gained at the receptor-ligand binding step. We find that the model originally applied to cAMP sensing fails as demonstrated by the violation of the data processing inequality, i.e. the total information exceeds the information at the receptor-ligand binding step. We propose an extended model with multiple known receptor types and with cells allowed to perform several independent measurements of receptor occupancy. This does not violate the data processing inequality and implies the receptor-ligand binding noise dominates both for low- and high-chemoattractant concentrations. We also speculate that the interplay between exploration and exploitation is used as a strategy for accurate sensing of otherwise unmeasurable levels of a chemoattractant.
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Affiliation(s)
- Igor Segota
- Laboratory of Atomic and Solid State Physics, Cornell University, Ithaca, NY 14853, USA.
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Abstract
MADNet is a user-friendly data mining and visualization tool for rapid analysis of diverse high-throughput biological data such as microarray, phage display or even metagenome experiments. It presents biological information in the context of metabolic and signalling pathways, transcription factors and drug targets through minimal user input, consisting only of the file with the experimental data. These data are integrated with information stored in various biological databases such as NCBI nucleotide and protein databases, metabolic and signalling pathway databases (KEGG), transcription regulation (TRANSFAC©) and drug target database (DrugBank). MADNet is freely available for academic use at http://www.bioinfo.hr/madnet.
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Affiliation(s)
- Igor Segota
- Bioinformatics Group, Division of Biology, Faculty of Science, Zagreb University, Horvatovac 102a, 10000 Zagreb, Croatia
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11
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Segota I. Global bioethics and Potter's criticisms of the concept of human progress. Taiwan Yi Xue Ren Wen Xue Kan 2000; 1:36-55. [PMID: 15008175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
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12
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Segota I. The first code of ethics of Croatian nurses. J Int Bioethique 2000; 11:47-51. [PMID: 12174858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
Affiliation(s)
- I Segota
- Faculty of Medicine, University of Rijeka, Department of Social Sciences, B. Branchetta 20, 51000 Rijeka, Croatia
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13
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Affiliation(s)
- I Segota
- Department of Social Sciences, Medical Faculty, University of Rijeka, Croatia
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14
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Segota I. [The first deontology dissertation in Croatia (Desković, 1943)]. Lijec Vjesn 1995; 117:294-300. [PMID: 8691977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
The first Croatian deontological dissertation, and probably one of the oldest in Europe, was written in Vienna in 1843. It was also published there in German. Our medical historians discovered it 40 years ago. However, its contents have up to now been unknown to our scientific and broader community. The manuscript, titled "About Physician's Duties to the State and to his Fellow-Men" (in German original: Joseph Descovich, Ueber die Pflichten des Artzes, Gegen den Staat uind seine Mitmenschen), is the work of a Dalmatian physician from Omis, Dr. Josip Desković. Nowadays when medical ethics has evolved into an independent academic discipline, and is rapidly spreading on all continents, this dissertation indicates that historical roots of medical ethics in Croats are by more than 150 years older compared to some other European countries, e. g. Sweden. The author presents the content of the dissertation and analyses it from ethical and sociological viewpoints. He relates it to Hippocratic ethics as well as to contemporary medical ethics termed bioethics, which is steadily establishing itself in modern medicine.
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Affiliation(s)
- I Segota
- Medicinski fakultet Sveucilista u Rijeci
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15
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Segota I. The first Code of Medical Ethics in an independent nation. HEC Forum 1995; 7:381-6. [PMID: 10153746 DOI: 10.1007/bf01789042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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