50 results on '"Zohar, I."'
Search Results
2. Digital Zooarchaeology: State of the art, challenges, prospects and synergies
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Spyrou, A., Nobles, G., Hadjikoumis, A., Evin, A., Hulme-Beaman, A., Çakirlar, C., Ameen, C., Loucas, N., Nikita, E., Hanot, P., de Boer, N.M., Avgousti, A., Zohar, I., May, H., and Rehren, Th.
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- 2022
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3. Evaluation of the ornithogenic influence on the trophic state of East Mediterranean wetland ecosystem using trend analysis
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Litaor, M. Iggy, Barnea, I., Reichmann, O., and Zohar, I.
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- 2016
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4. Oxygen isotope composition of Sparidae (sea bream) tooth enamel from well-dated archaeological sites as an environmental proxy in the East Mediterranean: A case study from Tel Dor, Israel
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Sisma-Ventura, G., Zohar, I., Sarkar, A., Bhattacharyya, K., Zidane, A., Gilboa, A., Bar-Oz, G., and Sivan, D.
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- 2015
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5. Functional connectivity in prenatally stressed rats with and without maternal treatment with ladostigil, a brain-selective monoamine oxidase inhibitor
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Goelman, G., Ilinca, R., Zohar, I., and Weinstock, M.
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- 2014
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6. Differential Effect of Prenatal Stress on the Expression of Cortiocotrophin-Releasing Hormone and its Receptors in the Hypothalamus and Amygdala in Male and Female Rats
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Zohar, I. and Weinstock, M.
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- 2011
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7. Strontium and oxygen isotope analyses reveal Late Cretaceous shark teeth in iron age strata in the Southern Levant
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Tütken, T., Weber, M., Zohar, I., Helmy, H., Bourgon, N., https://orcid.org/0000-0001-8538-1903, Lernau, O., Jochum, K., and Sisma-Ventura, G.
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930 Alte Geschichte ,550 Earth sciences ,930 History of ancient world ,550 Geowissenschaften - Published
- 2020
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8. Fish Processing During the Early Holocene: A Taphonomic Case Study from Coastal Israel
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Zohar, I., Dayan, T., Galili, E., and Spanier, E.
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- 2001
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9. The Emergnce and Crystallisation of Local and Native Hebrew Culture in Eretz-Israel, 1882-1948 / הצמיחה וההתגבשות של תרבות עברית מקומית וילידית בארץ-ישראל, 1882—1948
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אבן-זהר, איתמר and Even-Zohar, I.
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- 1980
10. Debate and Conclusion / דברי-סיכום
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אבן-זהר, איתמר and Even-Zohar, I.
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- 1980
11. Urbanization effects on sediment and trace metals distribution in an urban winter pond (Netanya, Israel)
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Zohar, I., Teutsch, N., Levin, N., Mackin, G., de Stigter, H., Bookman, R., Zohar, I., Teutsch, N., Levin, N., Mackin, G., de Stigter, H., and Bookman, R.
- Abstract
PurposeThis paper aims to elucidate urban development-induced processes affecting the sediment and the distribution of contaminating metals in a seasonal pond located in the highly populated Israeli Coastal Plain. The paper demonstrates how an integrated approach, including geochemical, sedimentological, geochronological, mathematical, historical, and geographical analyses, may decipher a complicated and dynamic metal pollution history in a sedimentary environment controlled by anthropogenic activity.Materials and methodsThree short sediment cores were collected from the margins and center of a small urban pond (Dora, Netanya), located within the Israeli Coastal Plain. Profiles of grain size, organic matter (OM), trace metals (Pb, Zn, V, Ni, Cu, Cr and Co), Pb isotopic ratios, and 210Pb activities (center and southern cores) were determined and a geochemical mixing model was employed (southern core). The watershed contour was calculated, and aerial photos and satellite images were examined.Results and discussionConstruction activities in the watershed were chronologically associated with coarse sediment transport and deposition in the margins of the pond. The upper sandy layers were superimposed on layers rich in fine particles and OM, high concentrations of trace metals, and with Pb isotopic composition of more recent petrol. In the 210Pb-dated southern core, deep metal-rich layers with petrol-related Pb isotopic ratios were inconsistent with metal emissions history. These findings point to mobility and migration of recent contamination metals through the coarse upper sediment layers and into deeper denser layers, confirmed also by a geochemical mixing model. Conversely, in the center of the pond, homogeneous fine particles were deposited with metal profiles consistent with regional emissions.ConclusionsA small urban pond was found to provide an important case study for understanding heavy metal pollution records in highly populated regions. The margins of the pond
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- 2017
12. Contamination History of Lead and Other Trace Metals Reconstructed from an Urban Winter Pond in the Eastern Mediterranean Coast (Israel)
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Zohar, I., Bookman, R., Levin, N., de Stigter, H., Teutsch, N., Zohar, I., Bookman, R., Levin, N., de Stigter, H., and Teutsch, N.
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Pollution history of Pb and other trace metals was reconstructed for the first time for the Eastern Mediterranean, from a small urban winter pond (Dora, Netanya), located at the densely populated coastal plain of Israel. An integrated approach including geochemical, sedimentological, and historical analyses was employed to study sediments from the center of the pond. Profiles of metal concentrations (Pb, Zn, V, Ni, Cu, Cr, Co, Cd, and Hg) and Pb isotopic composition denote two main eras of pre- and post-19th century. The deeper sediment is characterized by low concentrations and relatively constant 206Pb/207Pb (around 1.20), similar to natural Pb sources, with slight indications of ancient anthropogenic activity. The upper sediment displays an upward increase in trace metal concentrations, with the highest enrichment factor for Pb (18.4). Lead fluxes and isotopic composition point to national/regional petrol-Pb emissions as the major contributor to Pb contamination, overwhelming other potential local and transboundary sources. Traffic-related metals are correlated with Pb, emphasizing the polluting inputs of traffic. The Hg profile, however, implies global pollution rather than local sources.
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- 2014
13. Contamination History of Lead and Other Trace Metals Reconstructed from an Urban Winter Pond in the Eastern Mediterranean Coast (Israel)
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Zohar, I., primary, Bookman, R., additional, Levin, N., additional, de Stigter, H., additional, and Teutsch, N., additional
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- 2014
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14. P.2.a.001 Maternal administration of citalopram induces changes in behaviour and 5-HT1A receptor levels in prenatally stressed and control rats
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Zohar, I., primary and Weinstock, M., additional
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- 2014
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15. P.2.001 Citalopram given to stressed and control pregnant rats causes sex-dependent changes in behaviour and CRH mRNA expression in their offspring
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Zohar, I., primary and Weinstock, M., additional
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- 2013
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16. P.1.095 Unipolar and bipolar depression: Demographic and clinical differences. Results from a European multicenter study
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Oswaki, P., primary, Souery, D., additional, Kasper, S., additional, Lecrubier, Y., additional, Zohar, I., additional, and Mendlemicz, I., additional
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- 2004
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17. Control for teams of kinematic unicycle-like and skid-steering mobile robots with restricted inputs: Analysis and applications.
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Ailon, A., Cosic, A., Zohar, I., and Rodic, A.
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- 2011
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18. Controllers for trajectory tracking and string-like formation in Wheeled Mobile Robots with bounded inputs.
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Ailon, A. and Zohar, I.
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- 2010
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19. Path planning and optimal control strategies for unmanned aerial vehicles with bounded inputs.
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Ailon, A. and Zohar, I.
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- 2010
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20. Controllers for mobile robot dynamic models: Trajectory tracking with applications to convoy-like vehicles.
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Zohar, I., Ailon, A., and Rabinovici, R.
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- 2009
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21. Predicting Grey Triggerfish Body Size from Bones
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ZOHAR, I., primary, DAYAN, T., additional, and SPANIER, E., additional
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- 1997
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22. Remedy for an 8500 year-old plastered human skull from Kfar Hahoresh, Israel
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Hershkovitz, I., primary, Zohar, I., additional, Segal, I., additional, Speirs, M.S., additional, Meirav, O., additional, Sherter, U., additional, Feldman, H., additional, and Goring-Morris, N., additional
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- 1995
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23. Early human collective practices and symbolism in the Early Upper Paleolithic of Southwest Asia.
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Barzilai O, Marder O, Tejero JM, Ayalon A, Bar-Matthews M, Abulafia T, Lavi R, Goder-Goldberger M, Shemer M, Edeltin L, Wiegmann A, Frumkin A, Karasik A, Yasur G, Yeshurun R, Zohar I, Berna F, Hans M, Goldberg JS, McDermott Y, Spurlock L, Pokhojaev A, Habashi W, May H, Sarig R, and Hershkovitz I
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- Humans, History, Ancient, Ceremonial Behavior, Caves, Symbolism, Archaeology
- Abstract
Identifying communal rituals in the Paleolithic is of scientific importance, as it reflects the expression of collective identity and the maintenance of group cohesion. This study provides evidence indicating the practice of deep cave collective rituals in the Levant during the Early Upper Paleolithic (EUP) period. It is demonstrated that these gatherings occurred within a distinct ritual compound and were centered around an engraved object in the deepest part of Manot Cave, a pivotal EUP site in southwest Asia. The ritual compound, segregated from the living areas, encompasses a large gallery partitioned by a cluster of remarkable speleothems. Within this gallery, an engraved boulder stands out, displaying geometric signs suggesting a unique representation of a tortoise. Isotopic analysis of calcite crusts on the boulder's grooves revealed alignment with values found in speleothems from the cave dated to ~37 to 35 ka BP. Additionally, meticulous shape analysis of the grooves' cross-section and the discernible presence of microlinear scratches on the grooves' walls confirmed their anthropogenic origin. Examination of stalagmite laminae (36 ka BP) near the engraved boulder revealed a significant presence of wood ash particles within. This finding provides evidence for using fire to illuminate the dark, deep part of the cave during rituals. Acoustic tests conducted in various cave areas indicate that the ritual compound was well suited for communal gatherings, facilitating conversations, speeches, and hearing. Our results underscore the critical role of collective practices centered around a symbolic object in fostering a functional social network within the regional EUP communities., Competing Interests: Competing interests statement:The authors declare no competing interest.
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- 2024
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24. Amikacin treatment in patients with Enterobacterales bacteraemia: impact of MIC on mortality.
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Zohar I, Ben David D, Schwartz O, Pomerantz A, Caliari G, Hoffman E, and Maor Y
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- Humans, Male, Retrospective Studies, Female, Aged, Aged, 80 and over, Enterobacteriaceae drug effects, Middle Aged, Treatment Outcome, Amikacin therapeutic use, Amikacin pharmacology, Bacteremia drug therapy, Bacteremia mortality, Bacteremia microbiology, Anti-Bacterial Agents therapeutic use, Anti-Bacterial Agents pharmacology, Microbial Sensitivity Tests, Enterobacteriaceae Infections drug therapy, Enterobacteriaceae Infections mortality, Enterobacteriaceae Infections microbiology, Urinary Tract Infections drug therapy, Urinary Tract Infections microbiology, Urinary Tract Infections mortality
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Background: Recently, breakpoints of Enterobacterales to amikacin were changed from MIC ≤ 16 mg/L to MIC ≤ 4 mg/L based mainly on laboratory data with little supporting clinical evidence. Our aim was to investigate the relation between MIC of Enterobacterales to amikacin and mortality among patients with Enterobacterales bacteraemia from a urinary tract source treated with amikacin., Patients and Methods: This retrospective, single-centre study included patients with Enterobacterales urinary source bacteraemia treated with amikacin, with Low (MIC ≤ 4 mg/L) and High (MIC 8 or 16 mg/L) MICs. A cohort of patients treated with ertapenem was used to assess if amikacin MIC is a marker of severity independent of antimicrobial treatment. The primary outcome was 30-day mortality. Multivariate logistic regression analysis was done to assess risk factors for mortality., Results: We included 85 patients, 46 (54.1%) were male, and mean age was 79.0 years (SD 11.7). Sixty-one patients (71.8%) had Low MIC and 24 (28.2%) had High MIC. Thirty-day mortality was 8.2% and 29.2% in the Low and High MIC groups, respectively (P = 0.031). Risk factors for 30-day mortality were age, infection by Enterobacterales other than Escherichia coli and high amikacin MIC. In a cohort of 88 patients treated with ertapenem, amikacin MIC was not associated with 30-day mortality., Conclusions: We demonstrated a relation between higher amikacin MIC levels (8 and 16 mg/L) and increased 30-day mortality in patients treated with amikacin for bacteraemia secondary to a urinary source. These findings support the new CLSI breakpoint change of Enterobacterales to amikacin., (© The Author(s) 2024. Published by Oxford University Press on behalf of British Society for Antimicrobial Chemotherapy. All rights reserved. For commercial re-use, please contact reprints@oup.com for reprints and translation rights for reprints. All other permissions can be obtained through our RightsLink service via the Permissions link on the article page on our site—for further information please contact journals.permissions@oup.com.)
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- 2024
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25. Proprotein Convertase Subtilisin Kexin 9 Inhibitor in Severe Sepsis and Septic Shock Patients in a Phase II Prospective Cohort Study-Preliminary Results.
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Rosman Z, Maor Y, Zohar I, Balmor GR, Pravda MS, Goldstein AL, Tocut M, and Soroksky A
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Sepsis is a life-threatening organ dysfunction syndrome caused by a dysregulated host response to infection that has a high mortality rate. Proprotein convertase subtilisin kexin 9 (PCSK9) is a serine protease secreted by the liver. Its binding to the low-density lipoprotein (LDL) receptor enhances its degradation, causing an increase in LDL levels in the blood. Objectives : Administering a PCSK9 inhibitor leading to an increase in lipid uptake by the liver may positively affect septic patients due to the increased removal of endotoxins. Methods : This preliminary study aimed to examine the safety of PCSK9 inhibitor use in septic and septic shock patients. We treated five septic patients in the intensive care unit with 300 mg of alirocumab following serious adverse events for 28 days. Results : Four of our patients did not experience any adverse events, and all of them survived. One patient died after discharge from the intensive care unit, and this death was presumably not related to the study drug. The patients rapidly recovered from the inflammatory stage of sepsis. Conclusions : Alirocumab appears safe in severe sepsis and septic shock patients. The outcome data are promising. Only a basic safety profile can be assessed based on this pilot study. Further study with a PCSK-9 inhibitor in septic or septic shock patients is required to further determine its benefit in ICU patients.
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- 2024
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26. The impact of Boric Acid tubes on quantitative urinary bacterial cultures in hospitalized patients.
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Ben-David D, Cohen Y, Zohar I, Maor Y, and Schwartz O
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- Humans, Specimen Handling methods, Hospitalization, Male, Time Factors, Female, Urine Specimen Collection methods, Urine microbiology, Urinalysis methods, Boric Acids pharmacology, Bacteria isolation & purification, Bacteria drug effects, Bacteria growth & development, Urinary Tract Infections microbiology, Urinary Tract Infections diagnosis
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Introduction: The accuracy of urine culture results can be affected by pre-analytical factors such as transport delays and storage conditions. The objectives of this study were to analyze urine collection practices and assess the impact of introducing boric acid tubes for urine collection on quantitative urinary bacterial cultures of hospitalized patients in medical wards., Methods: A quasi-experimental pre-post study conducted in an acute care facility. In the pre-intervention phase (2020-2021), urine samples were transported without preservatives at room temperature. In 2022 (post-intervention), we transitioned to boric acid transport tubes, evaluating its effect on significant bacterial growth (≥ 105 CFU/ml). Bivariate and multivariate analyses identified predictors of culture positivity., Results: Throughout the duration of the study, a total of 12,660 urine cultures were analyzed. Date and time documentation was complete for 38.3% of specimens. Culture positivity was higher with longer processing times: positivity was 21.3% (220/1034) when specimens were processed within 4 h, 28.4% (955/3364) when processed in 4-24 h, and 32.9% (137/417) when processed after 24 h (p < 0.0001). For 4-24-hour processing, positivity decreased from 30.4% (704/2317) pre-intervention to 24.0% (251/1047) post-intervention (p < 0.001), with no significant changes in < 4 or ≥ 24-hour specimens. Stratified analysis by processing time revealed that the intervention was associated with reduced positivity only in cultures processed within 4-24 h (OR 0.80, 95% CI 0.67-0.94; p = 0.008)., Conclusion: The introduction of boric acid transport tubes predominantly influenced cultures transported within a 4-24-hour window. This presents an opportunity to improve urine tract infection diagnostic practices in healthcare settings., (© 2024. The Author(s).)
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- 2024
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27. Genome sequence of two novel virulent clinical strains of Burkholderia pseudomallei isolated from acute melioidosis cases imported to Israel from India and Thailand.
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Cohen-Gihon I, Zaide G, Amit S, Zohar I, Schwartz O, Maor Y, Israeli O, Bilinsky G, Israeli M, Lazar S, Gur D, Aftalion M, Zvi A, Beth-Din A, Bar-Haim E, Elia U, Cohen O, Mamroud E, and Chitlaru T
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- Thailand epidemiology, Humans, India, Animals, Israel epidemiology, Virulence genetics, Mice, Whole Genome Sequencing, Burkholderia pseudomallei genetics, Burkholderia pseudomallei isolation & purification, Burkholderia pseudomallei pathogenicity, Melioidosis microbiology, Melioidosis epidemiology, Genome, Bacterial genetics, Phylogeny
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Objective: Burkholderia pseudomallei, the etiological cause of melioidosis, is a soil saprophyte endemic in South-East Asia, where it constitutes a public health concern of high-priority. Melioidosis cases are sporadically identified in nonendemic areas, usually associated with travelers or import of goods from endemic regions. Due to extensive intercontinental traveling and the anticipated climate change-associated alterations of the soil bacterial flora, there is an increasing concern for inadvertent establishment of novel endemic areas, which may expand the global burden of melioidosis. Rapid diagnosis, isolation and characterization of B. pseudomallei isolates is therefore of utmost importance particularly in non-endemic locations., Data Description: We report the genome sequences of two novel clinical isolates (MWH2021 and MST2022) of B. pseudomallei identified in distinct acute cases of melioidosis diagnosed in two individuals arriving to Israel from India and Thailand, respectively. The data includes preliminary genetic analysis of the genomes determining their phylogenetic classification in rapport to the genomes of 131 B. pseudomallei strains documented in the NCBI database. Inspection of the genomic data revealed the presence or absence of loci encoding for several documented virulence determinants involved in the molecular pathogenesis of melioidosis. Virulence analysis in murine models of acute or chronic melioidosis established that both strains belong to the highly virulent class of B. pseudomalleii., (© 2024. The Author(s).)
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- 2024
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28. Room Temperature Relaxometry of Single Nitrogen Vacancy Centers in Proximity to α-RuCl 3 Nanoflakes.
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Kumar J, Yudilevich D, Smooha A, Zohar I, Pariari AK, Stöhr R, Denisenko A, Hücker M, and Finkler A
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Nitrogen vacancy (NV) center-based magnetometry has been proven to be a versatile sensor for various classes of magnetic materials in broad temperature and frequency ranges. Here, we use the longitudinal relaxation time T
1 of single NV centers to investigate the spin dynamics of nanometer-thin flakes of α-RuCl3 at room temperature. We observe a significant reduction in the T1 in the presence of α-RuCl3 in the proximity of NVs, which we attribute to paramagnetic spin noise confined in the 2D hexagonal planes. Furthermore, the T1 time exhibits a monotonic increase with an applied magnetic field. We associate this trend with the alteration of the spin and charge noise in α-RuCl3 under an external magnetic field. These findings suggest that the influence of the spin dynamics of α-RuCl3 on the T1 of the NV center can be used to gain information about the material itself and the technique to be used on other 2D materials.- Published
- 2024
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29. Blood stream Infections in chronic hemodialysis patients - characteristics and outcomes.
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Schamroth Pravda M, Maor Y, Brodsky K, Katkov A, Cernes R, Schamroth Pravda N, Tocut M, Zohar I, Soroksky A, and Feldman L
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- Humans, Male, Middle Aged, Aged, Aged, 80 and over, Female, Renal Dialysis adverse effects, Renal Dialysis methods, Retrospective Studies, Gram-Negative Bacteria, Anti-Bacterial Agents therapeutic use, Risk Factors, Bacteremia epidemiology, Bacteremia etiology, Sepsis complications
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Introduction: Bloodstream Infections (BSI) are a major cause of death and hospitalization among hemodialysis (HD) patients. The rates of BSI among HD patients vary and are influenced by local patient and pathogen characteristics. Modifications in local infection prevention protocols in light of active surveillance of BSI has been shown to improve clinical outcomes. The aim of this study was to further explore factors associated with BSI in a contemporary cohort of HD patients at a public teaching hospital dialysis center in Israel., Methods: This was a retrospective cohort study of HD patients with a BSI in the years 2014 to 2018. The primary outcome was the occurrence of BSI. Secondary outcomes were to describe the causative pathogens of BSI, and to assess for risk factors for BSI, and mortality., Results: Included were 251 patients. The mean age was 68.5 ± 13.4 years, 66.9% were male. The mean time from initiation of dialysis was 34.76 ± 40.77 months, interquartile range (IQR) 1-47.5 months and the follow up period of the cohort was 25.17 ± 15.9 months. During the observation period, 44 patients (17.5%) developed 54 BSI events, while 10 of them (3.9% of the whole cohort) developed recurrent BSI events. Gram-negative microorganisms caused 46.3% of all BSI events. 31.4% of these BSI were caused by resistant bacteria. In a multivariate logistic regression analysis, patients receiving dialysis through a central line had a significantly increased risk for BSI adjusted Odds Ratio (aOR) 3.907, p = 0.005, whereas patients' weight was mildly protective (aOR 0.971, p = 0.024)., Conclusions: We noted an increased prevalence of gram-negative pathogens in the etiology of BSI in HD patients. Based on our findings, additional empirical antibiotics addressing gram negative bacteria have been added to our empirical treatment protocol. Our findings highlight the need to follow local epidemiology for implementing appropriate preventative measures and for tailoring appropriate empiric antibiotic therapy., (© 2023. The Author(s).)
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- 2024
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30. Author Correction: Evidence for the cooking of fish 780,000 years ago at Gesher Benot Ya'aqov, Israel.
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Zohar I, Alperson-Afil N, Goren-Inbar N, Prévost M, Tütken T, Sisma-Ventura G, Hershkovitz I, and Najorka J
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- 2024
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31. A Randomized Controlled Study Assessing Convalescent Immunoglobulins vs Convalescent Plasma for Hospitalized Patients With Coronavirus 2019.
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Maor Y, Shinar E, Izak M, Rahav G, Brosh-Nissimov T, Kessler A, Rahimi-Levene N, Benin-Goren O, Cohen D, Zohar I, Alagem N, Castro S, and Zimhony O
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- Humans, Middle Aged, Aged, SARS-CoV-2, Immunization, Passive adverse effects, Treatment Outcome, COVID-19 Serotherapy, Immunoglobulins, COVID-19 therapy
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Background: It is unknown whether convalescent immunoglobulins (cIgGs) are better than convalescent plasma (CP) for patients with coronavirus 2019 (COVID-19)., Methods: In this randomized controlled trial, we assigned high risk COVID-19 patients with ≤10 days of symptoms, to receive cIgGs or CP. The primary endpoint was improvement on day 14 according to the World Health Organization scale. Secondary endpoints were survival on day 14, and improvement, survival, and percent of ventilated patients on day 28, and treatment response in unvaccinated and vaccinated patients., Results: A total of 319 patients were included: 166 received cIgGs and 153 CP. Median age was 64 to 66 years. A total of 112 patients (67.5%) in the cIgG group and 103 patients (67.3%) in the CP group reached the primary endpoint. Difference between groups was 0.1 (95% confidence interval, -10.1 to 10.4; P = .026), failing to reach noninferiority. More patients receiving cIgG improved by day 28 (136 patients [81.9%] and 108 patients [70.6%], respectively; 95% confidence interval, 1.9-20.7; P < .001; for superiority P = .018). Seventeen patients in the cIgG group (10.2%) and 25 patients (16.3%) in the CP group required mechanical ventilation (P = .136). Sixteen (9.6%) and 23 (15%) patients, respectively, died (P = .172). More unvaccinated patients improved by day 28 in the cIgG group (84.1% vs 66.1%; P = .024), and survival was better in the cIgG group (89.9% vs 77.4%; P = .066)., Conclusions: cIgGs failed to reach the primary noninferiority endpoint on day 14 but was superior to CP on day 28. Survival and improvement by day 28 in unvaccinated patients treated with cIgGs were better. In the face of new variants, cIgGs are a viable option for treating COVID-19., Trial Registration Number: My Trials MOH_2021-01-14_009667., Competing Interests: Potential conflicts of interest . Y. M. was a primary investigator on a grant received from KAMADA supporting this study. She also received honoraria for participation in advisory boards from KAMADA and MSD and received honoraria for lectures or writing services from MSD, Pfizer, Medison, and Maccabi health services (paid to author); travel grants from Pfizer (paid to institution); unpaid roles on Israeli Ministry of Health's epidemic preparedness committee and infectious disease and vaccine committee, and as Treasurer to Society for Research and Prevention of Sexually Transmitted Diseases. T. B. N. reports consulting fees from AstraZeneca and MSD; honoraria for participation in advisory boards from AstraZeneca and MSD; and honoraria for lectures and travel grants from AstraZeneca, MSD, and Medison. N. A. is an employee of Kamada and holds Kamada stock options. S. C. is an employee of Kamada and holds Kamada stock options. All other authors report no potential conflicts. All authors have submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest. Conflicts that the editors consider relevant to the content of the manuscript have been disclosed., (© The Author(s) 2023. Published by Oxford University Press on behalf of Infectious Diseases Society of America.)
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- 2023
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32. Evidence for the cooking of fish 780,000 years ago at Gesher Benot Ya'aqov, Israel.
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Zohar I, Alperson-Afil N, Goren-Inbar N, Prévost M, Tütken T, Sisma-Ventura G, Hershkovitz I, and Najorka J
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- Animals, Israel, Archaeology, Fishes, Cooking, Hominidae
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Although cooking is regarded as a key element in the evolutionary success of the genus Homo, impacting various biological and social aspects, when intentional cooking first began remains unknown. The early Middle Pleistocene site of Gesher Benot Ya'aqov, Israel (marine isotope stages 18-20; ~0.78 million years ago), has preserved evidence of hearth-related hominin activities and large numbers of freshwater fish remains (>40,000). A taphonomic study and isotopic analyses revealed significant differences between the characteristics of the fish bone assemblages recovered in eight sequential archaeological horizons of Area B (Layer II-6 levels 1-7) and natural fish bone assemblages (identified in Area A). Gesher Benot Ya'aqov archaeological horizons II-6 L1-7 exhibited low fish species richness, with a clear preference for two species of large Cyprinidae (Luciobarbus longiceps and Carasobarbus canis) and the almost total absence of fish bones in contrast to the richness of pharyngeal teeth (>95%). Most of the pharyngeal teeth recovered in archaeological horizons II-6 L1-7 were spatially associated with 'phantom' hearths (clusters of burnt flint microartifacts). Size-strain analysis using X-ray powder diffraction provided evidence that these teeth had been exposed to low temperature (<500 °C), suggesting, together with the archaeological and taphonomic data, that the fish from the archaeological horizons of Area B had been cooked and consumed on site. This is the earliest evidence of cooking by hominins., (© 2022. The Author(s), under exclusive licence to Springer Nature Limited.)
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- 2022
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33. Short- and long-term mortality in patients with urosepsis caused by Escherichia coli susceptible and resistant to 3rd generation cephalosporins.
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Tocut M, Zohar I, Schwartz O, Yossepowitch O, and Maor Y
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- Adult, Aged, Anti-Bacterial Agents therapeutic use, Cephalosporins therapeutic use, Escherichia coli, Female, Humans, Male, Retrospective Studies, Risk Factors, beta-Lactamases, Bacteremia drug therapy, Escherichia coli Infections drug therapy, Urinary Tract Infections drug therapy
- Abstract
Background: The aim of this study was to compare short- and long-term mortality among patients with urosepsis caused by Escherichia coli susceptibile (EC-SC) and resistant (EC-RC) to 3rd generation cephalosporins., Methods: A retrospective cohort study that included all patients with E. coli urosepsis admitted to a 700-bed hospital from January 2014 until December 2019. Mortality up to 30 days, 6 months and 1 year was assessed using logistic multivariate regression analysis and Cox regression analysis., Results: A total of 313 adult were included, 195 with EC-SC and 118 patients with EC-RC. 205 were females (74%), mean age was 79 (SD 12) years. Mean Charlson score was 4.93 (SD 2.18) in the EC-SC group and 5.74 (SD 1.92) in the EC-RC group. Appropriate empiric antibiotic therapy was initiated in 245 (78.3%) patients, 100% in the EC-SC group but only 42.5% in the EC-RC group. 30-day mortality occurred in 12 (6.3%) of EC-SC group and 15 (12.7%) in the EC-RC group. Factors independently associated with 30-day mortality were Charlson score, Pitt bacteremia score, fever upon admission and infection with a EC-RC. Appropriate antibiotic therapy was not independently associated with 30-day mortality. Differences in mortality between groups remained significant one year after the infection and were significantly associated with the Charlson co-morbidity score., Conclusions: Mortality in patients with urosepsis due to E. coli is highly affected by age and comorbidities. Although mortality was higher in the EC-RC group, we could not demonstrate an association with inappropriate empirical antibiotic treatment. Mortality remained higher at 6 months and 1 year long after the infection resolved but was associated mainly with co-morbidity., (© 2022. The Author(s).)
- Published
- 2022
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34. The development of microfabricated solenoids with magnetic cores for micromagnetic neural stimulation.
- Author
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Khalifa A, Zaeimbashi M, Zhou TX, Abrishami SM, Sun N, Park S, Šumarac T, Qu J, Zohar I, Yacoby A, Cash S, and Sun NX
- Abstract
Electrical stimulation via invasive microelectrodes is commonly used to treat a wide range of neurological and psychiatric conditions. Despite its remarkable success, the stimulation performance is not sustainable since the electrodes become encapsulated by gliosis due to foreign body reactions. Magnetic stimulation overcomes these limitations by eliminating the need for a metal-electrode contact. Here, we demonstrate a novel microfabricated solenoid inductor (80 µm × 40 µm) with a magnetic core that can activate neuronal tissue. The characterization and proof-of-concept of the device raise the possibility that micromagnetic stimulation solenoids that are small enough to be implanted within the brain may prove to be an effective alternative to existing electrode-based stimulation devices for chronic neural interfacing applications., Competing Interests: Conflict of interestThe authors declare no competing interests., (© The Author(s) 2021.)
- Published
- 2021
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35. Assessing modified aluminum-based water treatment residuals as a plant-available phosphorus source.
- Author
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Banet T, Massey MS, Zohar I, Litaor MI, and Ippolito JA
- Subjects
- Agriculture methods, Aluminum analysis, Animals, Phosphoric Monoester Hydrolases metabolism, Soil Microbiology, Swine, Triticum metabolism, Fertilizers, Phosphorus, Triticum growth & development, Wastewater chemistry, Water Purification methods
- Abstract
Inorganic phosphorus (P) fertilizers are a finite resource; alternative means of creating P fertilizers from current municipal and agricultural waste sources may reduce our reliance on phosphate rock mining, and improve waste disposal and nutrient cycling. Previous research demonstrated that organic aluminum water treatment residual composites (Al/O-WTR), created by mixing aluminum water treatment residuals (Al-WTR) with swine wastewater, have the potential to be a source of plant-available P. A greenhouse study was conducted to compare spring wheat (Triticum aestivum L.) growth with increasing application rates of swine wastewater-derived Al/O-WTR and commercial P fertilizer (both applied at 34, 67, and 135 kg P
2 O5 ha-1 ) in either sandy loam or sandy clay loam soil. Spring wheat straw and grain P uptake were comparable across all treatments in the sandy loam, while straw and grain P uptake were lower with Al/O-WTR in the sandy clay loam. The Al/O-WTR did not affect soil organic P concentrations, but did increase phosphatase activity in both soils. Increased phosphatase activity suggests that Al/O-WTR application stimulated microorganisms and enhanced the extent to which microbial communities mineralized Al/O-WTR-bound organic P. Overall, these results suggest that Al-WTR can be used to make P fertilizer, combining two "waste" products to create a useful product. Phosphorus harvesting via Al/O-WTR may be a feasible future alternative to mining phosphate rock, while avoiding unnecessary waste disposal and improving agricultural nutrient cycling., (Copyright © 2020 Elsevier Ltd. All rights reserved.)- Published
- 2020
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36. Aminoglycoside versus carbapenem or piperacillin/tazobactam treatment for bloodstream infections of urinary source caused by Gram-negative ESBL-producing Enterobacteriaceae.
- Author
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Zohar I, Schwartz O, Yossepowitch O, David SSB, and Maor Y
- Subjects
- Aged, Enterobacteriaceae, Escherichia coli drug effects, Humans, Pyelonephritis drug therapy, Pyelonephritis microbiology, Retrospective Studies, Urinary Tract Infections drug therapy, beta-Lactamases, Aminoglycosides therapeutic use, Anti-Bacterial Agents therapeutic use, Bacteremia drug therapy, Bacteremia mortality, Carbapenems therapeutic use, Enterobacteriaceae Infections drug therapy, Enterobacteriaceae Infections mortality, Piperacillin, Tazobactam Drug Combination therapeutic use
- Abstract
Objectives: We studied the performance of aminoglycosides in treating bloodstream infections (BSIs) of urinary source caused by ESBL-producing Enterobacteriaceae (ESBL-EB)., Methods: In a retrospective study of 193 patients with a clinical diagnosis of urinary tract infection, pyelonephritis or urosepsis and blood and urine cultures positive for ESBL-EB, patients were grouped according to whether they were treated with an aminoglycoside, a carbapenem or piperacillin/tazobactam. Multivariate analysis was used to define risk factors for mortality with inverse probability of treatment weighting used to minimize confounding. The primary efficacy outcome was 30 day mortality. The primary safety outcome was acute kidney injury (AKI) at 14 days., Results: Mean age was 79.3 years. Dementia, chronic kidney disease and the presence of a urinary catheter were common. Thirty-two (16.6%) patients died and risk factors for mortality included age, high Charlson score, presentation with severe sepsis/septic shock and infection with bacteria other than Escherichia coli. Aminoglycosides were non-inferior compared with other antibiotics regarding 30 day mortality [13.0% versus 21.2%, respectively; adjusted risk difference=10.29% (-0.82% to 21.41%)], but did not reach non-inferiority for bacteriuria recurrence [48.9% versus 44.7%, respectively; adjusted risk difference=-8.72% (-30.87% to 13.43%)]. AKI developed at a similar rate in both treatment groups: 12.0% versus 10.6%, respectively [OR=1.14 (0.46-2.81)]. Aminoglycosides were more efficacious in E. coli infections compared with other ESBL-EB., Conclusions: We demonstrated the efficacy and safety of aminoglycosides in treating BSI of urinary source caused by ESBL-EB. This carbapenem-sparing approach can assist in avoiding excessive carbapenem use without compromising outcomes., (© The Author(s) 2019. Published by Oxford University Press on behalf of the British Society for Antimicrobial Chemotherapy. All rights reserved. For permissions, please email: journals.permissions@oup.com.)
- Published
- 2020
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37. Past aquatic environments in the Levant inferred from stable isotope compositions of carbonate and phosphate in fish teeth.
- Author
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Sisma-Ventura G, Tütken T, Peters STM, Bialik OM, Zohar I, and Pack A
- Subjects
- Animals, Biological Evolution, Carbon analysis, Carbon metabolism, Carbon Isotopes analysis, Carps metabolism, Ecosystem, Mediterranean Region, Oxygen analysis, Oxygen metabolism, Oxygen Isotopes analysis, Sea Bream metabolism, Sharks metabolism, Carbonates chemistry, Fossils, Phosphates chemistry, Tooth chemistry
- Abstract
Here we explore the carbon and oxygen isotope compositions of the co-existing carbonate and phosphate fractions of fish tooth enameloid as a tool to reconstruct past aquatic fish environments and harvesting grounds. The enameloid oxygen isotope compositions of the phosphate fraction (δ18OPO4) vary by as much as ~4‰ for migratory marine fish such as gilthead seabream (Sparus aurata), predominantly reflecting the different saline habitats it occupies during its life cycle. The offset in enameloid Δ18OCO3-PO4 values of modern marine Sparidae and freshwater Cyprinidae from the Southeast Mediterranean region vary between 8.1 and 11.0‰, similar to values reported for modern sharks. The mean δ13C of modern adult S. aurata and Cyprinus carpio teeth of 0.1±0.4‰ and -6.1±0.7‰, respectively, mainly reflect the difference in δ13C of dissolved inorganic carbon (DIC) of the ambient water and dietary carbon sources. The enameloid Δ18OCO3-PO4 and δ13C values of ancient S. aurata (Holocene) and fossil Luciobarbus sp. (Cyprinidae; mid Pleistocene) teeth agree well with those of modern specimens, implying little diagenetic alteration of these tooth samples. Paired δ18OPO4-δ13C data from ancient S. aurata teeth indicate that hypersaline water bodies formed in the Levant region during the Late Holocene from typical Mediterranean coastal water with high evaporation rates and limited carbon input from terrestrial sources. Sparid tooth stable isotopes further suggest that coastal lagoons in the Eastern Mediterranean had already formed by the Early Holocene and were influenced by terrestrial carbon sources. Overall, combined enameloid oxygen and carbon isotope analysis of fish teeth is a powerful tool to infer the hydrologic evolution of aquatic environments and assess past fishing grounds of human populations in antiquity., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2019
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38. Ancient trash mounds unravel urban collapse a century before the end of Byzantine hegemony in the southern Levant.
- Author
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Bar-Oz G, Weissbrod L, Erickson-Gini T, Tepper Y, Malkinson D, Benzaquen M, Langgut D, Dunseth ZC, Butler DH, Shahack-Gross R, Roskin J, Fuks D, Weiss E, Marom N, Ktalav I, Blevis R, Zohar I, Farhi Y, Filatova A, Gorin-Rosen Y, Yan X, and Boaretto E
- Subjects
- Archaeology, Byzantium, Ceramics, Geologic Sediments, History, Ancient, Humans, Civilization history, Social Class history, Urban Population history, Waste Products
- Abstract
The historic event of the Late Antique Little Ice Age (LALIA) was recently identified in dozens of natural and geological climate proxies of the northern hemisphere. Although this climatic downturn was proposed as a major cause for pandemic and extensive societal upheavals in the sixth-seventh centuries CE, archaeological evidence for the magnitude of societal response to this event is sparse. This study uses ancient trash mounds as a type of proxy for identifying societal crisis in the urban domain, and employs multidisciplinary investigations to establish the terminal date of organized trash collection and high-level municipal functioning on a city-wide scale. Survey, excavation, sediment analysis, and geographic information system assessment of mound volume were conducted on a series of mounds surrounding the Byzantine urban settlement of Elusa in the Negev Desert. These reveal the massive collection and dumping of domestic and construction waste over time on the city edges. Carbon dating of charred seeds and charcoal fragments combined with ceramic analysis establish the end date of orchestrated trash removal near the mid-sixth century, coinciding closely with the beginning of the LALIA event and outbreak of the Justinian Plague in the year 541. This evidence for societal decline during the sixth century ties with other arguments for urban dysfunction across the Byzantine Levant at this time. We demonstrate the utility of trash mounds as sensitive proxies of social response and unravel the time-space dynamics of urban collapse, suggesting diminished resilience to rapid climate change in the frontier Negev region of the empire., Competing Interests: The authors declare no conflict of interest., (Copyright © 2019 the Author(s). Published by PNAS.)
- Published
- 2019
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39. Gram-negative bloodstream infections in hemodialysis patients: A retrospective study .
- Author
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Shimon O, Green H, Eliakim-Raz N, Rozen-Zvi B, Ben-Zvi H, Zohar I, Bishara J, and Yahav D
- Subjects
- Aged, Aged, 80 and over, Bacteremia diagnosis, Bacteremia drug therapy, Catheter-Related Infections diagnosis, Catheter-Related Infections drug therapy, Female, Gram-Negative Bacterial Infections diagnosis, Gram-Negative Bacterial Infections drug therapy, Humans, Male, Middle Aged, Retrospective Studies, Risk Factors, Anti-Bacterial Agents therapeutic use, Bacteremia microbiology, Catheter-Related Infections microbiology, Enterobacteriaceae isolation & purification, Gram-Negative Bacterial Infections microbiology, Pseudomonas isolation & purification, Renal Dialysis
- Abstract
Background: Bloodstream infections (BSIs) are an important cause of hospitalizations and mortality among hemodialysis (HD) patients. Epidemiology of these infections is changing, with increasing rates of Gram-negative pathogens, including resistant ones. Few studies have focused on the characteristics and outcomes of these infections., Objective: We aimed to document the causative pathogens of BSIs in HD patients and their clinical outcomes during 2008 - 2015, and to compare risk factors, clinical features, appropriateness of therapy, and outcomes between patients with Gram-negative vs. Gram-positive BSIs., Materials and Methods: A single-center retrospective cohort study. Charts of 120 HD patients hospitalized with first BSI were reviewed., Results: A total of 120 patients were included, 61 episodes of Gram-negative (51.8%) and 59 episodes of Gram-positive bacteria (49.2%). Source of infection was significantly more likely to be urinary or abdominal among patients with Gram-negative infection. Otherwise, no statistically significant differences were documented between groups in terms of baseline characteristics, presentation of infection and outcomes. Most Gram-negative BSIs were caused by enterobacteriaceae, followed by Pseudomonas spp. Previous clinical or surveillance cultures added little to accurate prediction of the causative organism., Conclusion: In a cohort of HD patients with BSI, no significant differences were found between Gram-negative and Gram-positive BSIs, besides source of infection. A urinary or abdominal source strongly suggests a Gram-negative pathogen. Otherwise, patient's characteristics, clinical presentation, and previous cultures, all cannot accurately predict the causative pathogen of BSI, and broad-spectrum antibiotics should be used empirically. .
- Published
- 2018
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40. Opportunism or aquatic specialization? Evidence of freshwater fish exploitation at Ohalo II- A waterlogged Upper Paleolithic site.
- Author
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Zohar I, Dayan T, Goren M, Nadel D, and Hershkovitz I
- Subjects
- Animals, Fisheries economics, Fishes, History, Ancient, Humans, Lakes, Middle East, Fisheries history, Fossils
- Abstract
Analysis of ca. 17,000 fish remains recovered from the late Upper Paleolithic/early Epi-Paleolithic (LGM; 23,000 BP) waterlogged site of Ohalo II (Rift Valley, Israel) provides new insights into the role of wetland habitats and the fish inhabiting them during the evolution of economic strategies prior to the agricultural evolution. Of the current 19 native fish species in Lake Kinneret (Sea of Galilee), eight species were identified at Ohalo II, belonging to two freshwater families: Cyprinidae (carps) and Cichlidae (St. Peter fish). Employing a large set of quantitative and qualitative criteria (NISP, species richness, diversity, skeletal element representation, fragmentation, color, spatial distribution, etc.), we demonstrate that the inhabitants of Ohalo II used their knowledge of the breeding behavior of different species of fish, for year-round intensive exploitation., Competing Interests: The authors have declared that no competing interests exist.
- Published
- 2018
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41. Phosphorus Sorption Characteristics in Aluminum-based Water Treatment Residuals Reacted with Dairy Wastewater: 1. Isotherms, XRD, and SEM-EDS Analysis.
- Author
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Zohar I, Massey MS, Ippolito JA, and Litaor MI
- Subjects
- Adsorption, Microscopy, Electron, Scanning, Temperature, Wastewater, X-Ray Diffraction, Aluminum chemistry, Phosphorus chemistry, Water Purification
- Abstract
We examined P sorption characteristics in Al-based water treatment residuals (Al-WTR) generated from slightly alkaline surface water and in an organic residual composite (WW-Al/O-WTR), produced by using the Al-WTR to treat organic-rich and high P concentration dairy wastewater. Solids from both residuals were examined using scanning electron microscopy-energy dispersive spectroscopy (SEM-EDS) and X-ray diffraction (XRD), and exposed to P additions of 0 to 4000 mg L in a sorption experiment. The Al-WTR removed ∼97% of the added P, whereas WW-Al/O-WTR removed only 78% of the added P in the addition range of 0 to 100 mg P L. With P additions of ≥100 mg L, the removal rate declined to <38% by Al-WTR and to 16% by WW-Al/O-WTR, possibly implying a change in sorption mechanisms. Analysis by XRD indicated that the major mineral was calcite, with some silica and poorly crystalline Al hydroxides. Analysis by SEM-EDS, which used three-element overlay maps of the residual surfaces, indicated that P was sparsely sorbed on both calcic and Al (hydr)oxide surfaces, along with a few clusters, even at low P concentrations of the treated waters. Ternary clusters of P, Al, and Ca were more abundant on the WW-Al/O-WTR. Carbon distribution suggested that organic substances covered Al surfaces. Sorption of P onto WW-Al/O-WTR may be reversible due to relatively weak Ca-P and Al-P bonds induced by the slight alkaline nature and in the presence of organic moieties, enhancing the WW-Al/O-WTR potential to act as a P source, rather than a P sink, in agricultural applications., (Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.)
- Published
- 2018
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42. Phosphorus Sorption to Aluminum-based Water Treatment Residuals Reacted with Dairy Wastewater: 2. X-Ray Absorption Spectroscopy.
- Author
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Massey MS, Zohar I, Ippolito JA, and Litaor MI
- Subjects
- Wastewater, X-Ray Absorption Spectroscopy, Aluminum chemistry, Phosphorus chemistry, Water Purification
- Abstract
Phosphorus capture from wastewater can decrease water pollution and provide a P-rich fertilizer alternative for use in agricultural production. This study was conducted to elucidate P retention mechanisms in Al-based water treatment residuals (Al-WTR) to gain insight regarding P sorption and the potential for P release from Al-WTR after reaction with dairy wastewater. Synchrotron-based microfocused X-ray fluorescence (micro-XRF) spectrometry, bulk P -edge X-ray absorption near edge structure spectroscopy (XANES), and P -edge micro-XANES spectroscopy were used to determine P distribution and speciation within the Al-WTR materials. Bulk XANES analyses indicated a shift from ∼56 P atom % Ca-associated P in the initial Al-WTR to ∼32% P atom % Ca-associated P after reaction with wastewater; Al-associated P made up the remainder of the P species. According to XANES analyses, adsorption appeared to be the primary P retention mechanism in the Al-WTR materials. However, micro-XANES analyses depicted a more complicated picture of P retention mechanisms, with regions of primarily Al-associated P, regions of primarily Ca-associated P, regions of mixed Al- and Ca-associated P, and distinct apatite- or octocalcium phosphate-like P grains. Synchrotron micro-XRF mapping further suggested that exposure of the aggregate exteriors to wastewater caused P to diffuse into the porous Al-WTR aggregates. Organic P species were not explicitly identified via P -edge XANES despite high organic matter content, suggesting that organic P may have been predominantly associated with mineral surfaces. Although diffusion and sorption to Al may decrease P bioavailability, Ca-associated P may increase P bioavailability from Al-WTR that is reused as a soil amendment., (Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc.)
- Published
- 2018
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43. Infants Born with Esophageal Atresia with or without Tracheo-Esophageal Fistula: Short- and Long-Term Outcomes.
- Author
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Leibovitch L, Zohar I, Maayan-Mazger A, Mazkereth R, Strauss T, and Bilik R
- Subjects
- Adolescent, Bronchial Hyperreactivity epidemiology, Child, Child, Preschool, Female, Follow-Up Studies, Humans, Incidence, Infant, Infant, Newborn, Interviews as Topic, Male, Pneumonia epidemiology, Respiratory Sounds physiology, Time Factors, Young Adult, Esophageal Atresia physiopathology, Gastroesophageal Reflux epidemiology, Hospitalization statistics & numerical data, Quality of Life, Tracheoesophageal Fistula physiopathology
- Abstract
Background: The estimated incidence of esophageal atresia (EA) with or without tracheo-esophageal fistula (TEF) is 1:3500 live births. During childhood these patients have various co-morbidities, but the overall quality of life among adults is similar to that of the general population., Objectives: To evaluate short- and long-term co-morbidities and quality of life among infants born with EA ± TEF at a large single medical center., Methods: Medical records of 65 children born over a 21 year period were reviewed for short- and long-term medical data. Telephone interviews were conducted with 46 of their parents regarding medical problems and quality of life after home discharge., Results: The main long-term co-morbidities during the first 2 years of life, 4-6 years of age, and during adolescence (12-16 years) included gastro-esophageal reflux disease (GERD) in 56.5%, 35.8%, and 18.7%, respectively; stridor in 84.8%, 45.2%, and 12.5%, respectively; hyper-reactive airway disease (HRAD) in 43.5%, 35.5%, and 36.5%, respectively; recurrent pneumonia in 43.5%, 32.3%, and 18.8%, respectively; and overall recurrent hospitalizations in 87%, 41.9%, and 25%, respectively. The quality of life was reportedly affected among 100%, 75%, and 33.3% respectively., Conclusions: Long-term follow-up of patients with EA ± TEF indicates a high burden of co-morbidities during the first 6 years of life, with a gradual decrease in symptoms thereafter. Nevertheless, HRAD continued to impact the daily life of about one-third of the older adolescents, and GERD one-fifth. A long-term multidisciplinary follow-up should be conducted to prevent late onset complications that may affect the quality of life.
- Published
- 2018
44. Innovative approach for recycling phosphorous from agro-wastewaters using water treatment residuals (WTR).
- Author
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Zohar I, Ippolito JA, Massey MS, and Litaor IM
- Subjects
- Adsorption, Aluminum analysis, Electrolytes analysis, Hydroxides analysis, Microscopy, Electron, Scanning, Organic Chemicals analysis, Photoelectron Spectroscopy, Recycling methods, Soil, Solubility, Surface Properties, Fertilizers analysis, Phosphorus analysis, Wastewater analysis, Water Pollutants, Chemical analysis, Water Purification methods
- Abstract
Phosphorus capture from polluting streams and its re-use using industrial byproducts has the potential to also reduce environmental threats. An innovative approach was developed for P removal from soil leachate and dairy wastewater using Al-based water treatment residuals (Al-WTR) to create an organic-Al-WTR composite (Al/O-WTR), potentially capable of serving as a P fertilizer source. Al-WTR was mixed with either soil leachate, or with dairy wastewater, both of which contained elevated P concentrations (e.g., 7.6-43.5 mg SRP L
-1 ). The Al-WTR removed ∼95% inorganic P, above 80% organic P, and over 60% dissolved organic carbon (DOC) from the waste streams. P removal was correlated with P concentration in the waste streams and was consistent with an increase in Al/O-WTR P content as determined by X-ray fluorescence (XRF) and surface analysis using scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM-EDS). Organic C was a major constituent in the original Al-WTR (31.4%) and increased by 1% in the Al/O-WTRs. Organic C accumulation on particles surfaces possibly enhanced weak P bonding. Desorption experiments indicated an initial and substantial P release (30 mg SRP kg-1 Al/O-WTR), followed by relatively constant low P solubility (ca. 10 mg kg-1 ). Organic C was continuously released to the solution (over 8000 mg kg-1 ), concomitantly with Ca and other electrolytes, possibly indicating dissolution from inner pores, accounting for the highly porous nature of the Al-WTR, evident by SEM images. The potential of P-loading on Al/O-WTR to promote P recycling should be further studied., (Copyright © 2016 Elsevier Ltd. All rights reserved.)- Published
- 2017
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45. Perinatal citalopram does not prevent the effect of prenatal stress on anxiety, depressive-like behaviour and serotonergic transmission in adult rat offspring.
- Author
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Zohar I, Shoham S, and Weinstock M
- Subjects
- Animals, Autoreceptors metabolism, Behavior, Animal drug effects, Corticotropin-Releasing Hormone metabolism, Disease Models, Animal, Female, Prefrontal Cortex metabolism, Prefrontal Cortex physiopathology, Pregnancy, Rats, Wistar, Serotonin metabolism, Stress, Physiological, Anxiety drug therapy, Citalopram pharmacology, Prefrontal Cortex drug effects, Selective Serotonin Reuptake Inhibitors pharmacology
- Abstract
It is still not clear whether the selective serotonin reuptake inhibitors frequently prescribed to depressed pregnant women improve the behavioural outcome in their children. The current study investigated whether administration of citalopram to pregnant rats could prevent anxiety and depressive-like behaviour induced by gestational stress in their offspring, and restore the expression of serotonin 1A autoreceptors in GABAergic interneurons in the medial prefrontal cortex and dorsal raphe nuclei in males, and of corticotropin-releasing factor type 2 receptors in GABAergic interneurons in the dorsal raphe nuclei in females. Activation of these receptors modulates serotonergic transmission to target areas and is reduced in a sex-dependent manner by prenatal stress. Citalopram (10 mg/kg/day), administered orally from day 7 of gestation until 21 days postpartum, prevented the increase in anxiety in stressed mothers but did not reduce anxiety and depressive-like behaviour in their offspring and even induced depressive-like behaviour in the offspring of control mothers. Citalopram failed to restore the reduction in the expression of serotonin 1A autoreceptors in the prefrontal cortex of males and in corticotropin-releasing factor type 2 receptors in the dorsal raphe nuclei of females induced by prenatal stress. Prenatal citalopram did not prevent the behavioural changes or reduction in serotonergic transmission to target areas induced by prenatal stress. It had adverse behavioural effects in the offspring of control rats, which, together with the lack of any change in prenatally-stressed rats, may be due to inhibition of the foetal serotonin transporter thereby preventing normal development of the serotonin system., (© 2015 Federation of European Neuroscience Societies and John Wiley & Sons Ltd.)
- Published
- 2016
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46. Sex dependent reduction by prenatal stress of the expression of 5HT1A receptors in the prefrontal cortex and CRF type 2 receptors in the raphe nucleus in rats: reversal by citalopram.
- Author
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Zohar I, Dosoretz-Abittan L, Shoham S, and Weinstock M
- Subjects
- Animals, Anxiety metabolism, Corticotropin-Releasing Hormone metabolism, Dorsal Raphe Nucleus drug effects, Female, GABAergic Neurons drug effects, GABAergic Neurons metabolism, Male, Prefrontal Cortex drug effects, Pregnancy, Rats, Rats, Wistar, Sex Factors, Citalopram pharmacology, Dorsal Raphe Nucleus metabolism, Prefrontal Cortex metabolism, Prenatal Exposure Delayed Effects metabolism, Receptor, Serotonin, 5-HT1A metabolism, Receptors, Corticotropin-Releasing Hormone metabolism, Selective Serotonin Reuptake Inhibitors pharmacology, Stress, Physiological drug effects
- Abstract
Rationale: Alterations in the serotonergic transmission and activity of corticotropin-releasing factor (CRF) family may underlie anxiety and depressive disorders. These could be corrected by treatment with SSRIs., Objectives: The objective of the current study is to determine whether the increased anxiety of prenatally stressed (PS) rats of both sexes is associated with changes in 5HT1A and CRF type 2 receptors (5HT1AR and CRFR2) in the prefrontal cortex (PFC)-dorsal raphe nuclei (DRN) axis, and how these are affected by chronic treatment with citalopram (10 mg/kg/day). We focussed on GABAergic cells that co-express parvalbumin and/or neuropeptide Y, and 5HT1AR in the medial prefrontal cortex (mPFC) and on cells that express 5HT, parvalbumin, 5HT1AR or CRFR2 in the DRN., Results: Immunohistochemistry with fluorescent antibodies demonstrated sex differences in the expression of 5HT1AR and CRFR2 protein. Prenatal stress selectively reduced the expression of 5HT1AR on GABAergic cells in the mPFC in males and that of CRFR2 in the DRN of females. Citalopram treatment for 5 weeks abolished the increase in anxiety in both sexes, restored the intensity of expression of 5HT1AR in the mPFC in males and increased their expression in the mPFC and DRN in females. Citalopram reduced CRFR2 expression in control and PS males but increased it in PS females., Conclusions: Male and female rats show differences in the expression of 5HT1AR and CRFR2 protein that are selectively reduced by prenatal stress. Reversal by citalopram of the changes in the expression of these receptors induced by prenatal stress support their role in the aetiology of anxiety.
- Published
- 2015
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47. Land, lake, and fish: Investigation of fish remains from Gesher Benot Ya'aqov (paleo-Lake Hula).
- Author
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Zohar I and Biton R
- Subjects
- Animals, Archaeology, Biological Evolution, Ecosystem, Fossils, Humans, Israel, Paleontology, Biodiversity, Diet, Fishes classification, Hominidae physiology
- Abstract
The question of whether or not pre-modern hominins were responsible for the accumulation of fish remains is discussed through analyses of remains recovered from two lacustrine facies (I-4 and I-5) from Area A of the Acheulian site of Gesher Benot Ya'aqov (GBY) in the Jordan Rift Valley, Israel. The fish remains provide the first glimpse into the naturally accumulated fish assemblage from the fluctuating shores of a lake that had been continually exploited by early hominins some 780,000 years ago. Preliminary analysis of the remains show that thirteen of the seventeen species native to Lake Hula were identified at GBY. These represent three of the five freshwater fish families native to the lake: Cyprinidae (carps), Cichlidae (tilapini, St. Peter's fish), and Clariidae (catfish). From a taphonomical perspective, a significant difference is found between the two lithofacies (Layers I-4 and I-5) in terms of species composition, richness, diversity, and skeleton completeness. It appears that the fish remains recovered from Layer I-4 (clay) are better preserved than those from Layer I-5 (coquina). In both lithofacies, Cyprinidae are highly abundant while Cichlidae and Clariidae are rare and under-represented, especially when compared to the Lake Hula fishery report from the 1950s. All of these identified species may have contributed significantly to the diet of GBY hominins., (Copyright © 2010 Elsevier Ltd. All rights reserved.)
- Published
- 2011
- Full Text
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48. Method for the analysis of oxygen isotopic composition of soil phosphate fractions.
- Author
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Zohar I, Shaviv A, Klass T, Roberts K, and Paytan A
- Subjects
- Agriculture, Oxygen chemistry, Phosphates chemistry, Soil chemistry
- Abstract
The isotopic signature of oxygen in phosphate (δ(18)O(P)) of various soil fractions may shed light on P transformations, including phosphorus (P) recycling by soil microorganisms, uptake by plants and P adsorption, precipitation and release by oxides and minerals, thus increasing our understanding on P cycling and lability in soils. We developed and tested a protocol to extract and purify inorganic phosphate (Pi) from different soil fractions distinguished by binding strength and precipitate it as silver phosphate (Ag(3)PO(4)) for δ(18)O(P) analysis. Soil P is extracted sequentially using water, NaHCO(3), NaOH and HCl and Pi in each solution is purified and precipitated as Ag(3)PO(4). The unique characteristics and possible interferences of the soil solution extracts are addressed. Two agricultural soil samples receiving reclaimed wastewater or fresh water were analyzed, and results indicate that all soil fractions analyzed have been impacted to some degree by biologically enzyme mediated cycling of P in the soil.
- Published
- 2010
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49. Spatial organization of hominin activities at Gesher Benot Ya'aqov, Israel.
- Author
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Alperson-Afil N, Sharon G, Kislev M, Melamed Y, Zohar I, Ashkenazi S, Rabinovich R, Biton R, Werker E, Hartman G, Feibel C, and Goren-Inbar N
- Subjects
- Animals, Anthropology, Physical, Fishes, Geologic Sediments, Israel, Mammals, Plants, Tool Use Behavior, Archaeology, Hominidae
- Abstract
The spatial designation of discrete areas for different activities reflects formalized conceptualization of a living space. The results of spatial analyses of a Middle Pleistocene Acheulian archaeological horizon (about 750,000 years ago) at Gesher Benot Ya'aqov, Israel, indicate that hominins differentiated their activities (stone knapping, tool use, floral and faunal processing and consumption) across space. These were organized in two main areas, including multiple activities around a hearth. The diversity of human activities and the distinctive patterning with which they are organized implies advanced organizational skills of the Gesher Benot Ya'aqov hominins.
- Published
- 2009
- Full Text
- View/download PDF
50. SPIKE--a database, visualization and analysis tool of cellular signaling pathways.
- Author
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Elkon R, Vesterman R, Amit N, Ulitsky I, Zohar I, Weisz M, Mass G, Orlev N, Sternberg G, Blekhman R, Assa J, Shiloh Y, and Shamir R
- Subjects
- Metabolic Networks and Pathways physiology, Software trends, Cell Physiological Phenomena, Database Management Systems trends, Databases, Genetic trends, Signal Transduction physiology
- Abstract
Background: Biological signaling pathways that govern cellular physiology form an intricate web of tightly regulated interlocking processes. Data on these regulatory networks are accumulating at an unprecedented pace. The assimilation, visualization and interpretation of these data have become a major challenge in biological research, and once met, will greatly boost our ability to understand cell functioning on a systems level., Results: To cope with this challenge, we are developing the SPIKE knowledge-base of signaling pathways. SPIKE contains three main software components: 1) A database (DB) of biological signaling pathways. Carefully curated information from the literature and data from large public sources constitute distinct tiers of the DB. 2) A visualization package that allows interactive graphic representations of regulatory interactions stored in the DB and superposition of functional genomic and proteomic data on the maps. 3) An algorithmic inference engine that analyzes the networks for novel functional interplays between network components.SPIKE is designed and implemented as a community tool and therefore provides a user-friendly interface that allows registered users to upload data to SPIKE DB. Our vision is that the DB will be populated by a distributed and highly collaborative effort undertaken by multiple groups in the research community, where each group contributes data in its field of expertise., Conclusion: The integrated capabilities of SPIKE make it a powerful platform for the analysis of signaling networks and the integration of knowledge on such networks with omics data.
- Published
- 2008
- Full Text
- View/download PDF
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