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- Cossarizza, A., et al.
(författare)
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Guidelines for the use of flow cytometry and cell sorting in immunological studies (second edition)
- 2019
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Ingår i: European Journal of Immunology. - : Wiley. - 0014-2980 .- 1521-4141. ; 49:10, s. 1457-1973
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Tidskriftsartikel (refereegranskat)abstract
- These guidelines are a consensus work of a considerable number of members of the immunology and flow cytometry community. They provide the theory and key practical aspects of flow cytometry enabling immunologists to avoid the common errors that often undermine immunological data. Notably, there are comprehensive sections of all major immune cell types with helpful Tables detailing phenotypes in murine and human cells. The latest flow cytometry techniques and applications are also described, featuring examples of the data that can be generated and, importantly, how the data can be analysed. Furthermore, there are sections detailing tips, tricks and pitfalls to avoid, all written and peer-reviewed by leading experts in the field, making this an essential research companion.
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- Acharya, B., et al.
(författare)
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Search formagnetic monopoles with the MoEDAL prototype trapping detector in 8 TeV proton-proton collisions at the LHC
- 2016
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Ingår i: Journal of High Energy Physics (JHEP). - 1126-6708 .- 1029-8479. ; :8
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Tidskriftsartikel (refereegranskat)abstract
- The MoEDAL experiment is designed to search for magnetic monopoles and other highly-ionising particles produced in high-energy collisions at the LHC. The largely passive MoEDAL detector, deployed at Interaction Point 8 on the LHC ring, relies on two dedicated direct detection techniques. The first technique is based on stacks of nuclear-track detectors with surface area similar to 18 m(2), sensitive to particle ionisation exceeding a high threshold. These detectors are analysed offline by optical scanning microscopes. The second technique is based on the trapping of charged particles in an array of roughly 800 kg of aluminium samples. These samples are monitored offline for the presence of trapped magnetic charge at a remote superconducting magnetometer facility. We present here the results of a search for magnetic monopoles using a 160 kg prototype MoEDAL trapping detector exposed to 8TeV proton-proton collisions at the LHC, for an integrated luminosity of 0.75 fb(-1). No magnetic charge exceeding 0.5g(D) (where g(D) is the Dirac magnetic charge) is measured in any of the exposed samples, allowing limits to be placed on monopole production in the mass range 100 GeV <= m <= 3500 GeV. Model-independent cross-section limits are presented in fiducial regions of monopole energy and direction for 1g(D) <= vertical bar g vertical bar <= 6g(D), and model-dependent cross-section limits are obtained for Drell-Yan pair production of spin-1/2 and spin-0 monopoles for 1g(D) <= vertical bar g vertical bar <= 4g(D). Under the assumption of Drell-Yan cross sections, mass limits are derived for vertical bar g vertical bar = 2g(D) and vertical bar g vertical bar = 3g(D) for the first time at the LHC, surpassing the results from previous collider experiments.
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- Santonocito, M., et al.
(författare)
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Molecular characterization of exosomes and their microRNA cargo in human follicular fluid: bioinformatic analysis reveals that exosomal microRNAs control pathways involved in follicular maturation
- 2014
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Ingår i: Fertility and Sterility. - : Elsevier BV. - 0015-0282. ; 102:6
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Tidskriftsartikel (refereegranskat)abstract
- Objective: To characterize well-represented microRNAs in human follicular fluid (FF) and to ascertain whether they are cargo of FF exosomes and whether they are involved in the regulation of follicle maturation. Design: FF exosomes were characterized by nanosight, flow cytometry, and exosome-specific surface markers. Expression microRNA profiles from total and exosomal FF were compared with those from plasma of the same women. Patient(s): Fifteen healthy women who had undergone intracytoplasmic sperm injection. Main Outcome Measure(s): TaqMan low-density array to investigate the expression profile of 384 microRNAs; DataAssist and geNorm for endogenous control identification; significance analysis of microarrays to identify differentially expressed microRNAs; nanosight, flow-cytometry, and bioanalyzer for exosome characterization; bioinformatic tools for microRNAs target prediction, gene ontology, and pathway analysis. Result(s): We identified 37 microRNAs upregulated in FF as compared with plasma from the same women. Thirty-two were carried by microvesicles that showed the well-characterized exosomal markers CD63 and CD81. These FF microRNAs are involved in critically important pathways for follicle growth and oocyte maturation. Specifically, nine of them target and negatively regulate mRNAs expressed in the follicular microenvironment encoding inhibitors of follicle maturation and meiosis resumption. Conclusion(s): This study identified a series of exosomal microRNAs that are highly represented in human FF and are involved in follicular maturation. They could represent noninvasive biomarkers of oocyte quality in assisted reproductive technology. (C) 2014 by American Society for Reproductive Medicine.
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- Adams, M, et al.
(författare)
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Preventive strategies and factors associated with surgically treated necrotising enterocolitis in extremely preterm infants: an international unit survey linked with retrospective cohort data analysis
- 2019
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Ingår i: BMJ open. - : BMJ. - 2044-6055. ; 9:10, s. e031086-
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Tidskriftsartikel (refereegranskat)abstract
- To compare necrotising enterocolitis (NEC) prevention practices and NEC associated factors between units from eight countries of the International Network for Evaluation of Outcomes of Neonates, and to assess their association with surgical NEC rates.DesignProspective unit-level survey combined with retrospective cohort study.SettingNeonatal intensive care units in Australia/New Zealand, Canada, Finland, Israel, Spain, Sweden, Switzerland and Tuscany (Italy).PatientsExtremely preterm infants born between 240to 286weeks’ gestation, with birth weights<1500 g, and admitted between 2014–2015.ExposuresNEC prevention practices (probiotics, feeding, donor milk) using responses of an on-line pre-piloted questionnaire containing 10 questions and factors associated with NEC in literature (antenatal steroids, c-section, indomethacin treated patent ductus arteriosus and sepsis) using cohort data.Outcome measuresSurgical NEC rates and death following NEC using cohort data.ResultsThe survey response rate was 91% (153 units). Both probiotic provision and donor milk availability varied between 0%–100% among networks whereas feeding initiation and advancement rates were similar in most networks. The 9792 infants included in the cohort study to link survey results and cohort outcomes, revealed similar baseline characteristics but considerable differences in factors associated with NEC between networks. 397 (4.1%) neonates underwent NEC surgery, ranging from 2.4%–8.4% between networks. Standardised ratios for surgical NEC were lower for Australia/New Zealand, higher for Spain, and comparable for the remaining six networks.ConclusionsThe variation in implementation of NEC prevention practices and in factors associated with NEC in literature could not be associated with the variation in surgical NEC incidence. This corroborates the current lack of consensus surrounding the use of preventive strategies for NEC and emphasises the need for research.
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