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| 16. |
- Hallgren, Stefan, 1978-, et al.
(författare)
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Adult dose-response-related behavioral effects of 4 different pesticides, after neonatal exposure
- 2014
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- There are several different types of pesticides globally used, all with their own characteristics and toxicological potency. In the present study we have exposed male mice neonatally to different doses of four different types of pesticides, carbaryl (carbamate) chlorpyrifos (organophosphate), cypermethrin (pyrethroid) and endosulfan (organochlorine), and tested them for spontaneous behavior in a novel home environment at adult age. The doses used were 0.5 – 20 mg carbaryl/kg bw, 0.1 – 5.0 mg chlorpyrifos/kg bw, 0.1 – 5.0 mg cypermethrin/kg bw and 0.05 – 20 mg endosulfan/kg bw. All four pesticides induced adult disturbances in the spontaneous behavior in a novel home environment, affecting cognitive function, at 2 months of age. Carbaryl induced a dose-response related effect on spontaneous behavior from 5 mg/kg bw and up, while chlorpyrifos only induced a weak effect with the highest dose tested (5 mg/kg bw). The pyrethroid cypermethrin induced dose-response related neurotoxicity from 0.5 mg/kg bw and up. The organochlorine endosulfan also induced dose-response related neurotoxicity from 0.1 mg/kg bw and up These disturbances also persisted when the animals were re-observed at 4 months of age, indicating that these effects are long-lasting or even irreversible. From this study we conclude that endosulfan seem to be the most potent, of these four compounds, to induce cognitive behavioral effects in the adult after neonatal exposure, while carbaryl has the lowest potency to induce these types of neurotoxic effects.
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| 17. |
- Hernebring, Malin, 1978, et al.
(författare)
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Removal of damaged proteins during ES cell fate specification requires the proteasome activator PA28
- 2013
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Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322 .- 2045-2322. ; 3:3, s. artikel nr 1381-
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Tidskriftsartikel (refereegranskat)abstract
- In embryonic stem cells, removal of oxidatively damaged proteins is triggered upon the first signs of cell fate specification but the underlying mechanism is not known. Here, we report that this phase of differentiation encompasses an unexpected induction of genes encoding the proteasome activator PA28 alpha beta (11S), subunits of the immunoproteasome (20Si), and the 20Si regulator TNF alpha. This induction is accompanied by assembly of mature PA28-20S(i) proteasomes and elevated proteasome activity. Inhibiting accumulation of PA28 alpha using miRNA counteracted the removal of damaged proteins demonstrating that PA28 alpha beta has a hitherto unidentified role required for resetting the levels of protein damage at the transition from self-renewal to cell differentiation.
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| 18. |
- Jacobson, Jan, et al.
(författare)
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Final testing protocols
- 2011
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This report is the final document summarizing the inspection and testing protocols of the eVALUE project. It describes principles, inspection protocols and testing protocols for performance testing of ICT-based safety systems. The inspection protocols (published earlier in D2.2) and the testing protocols introduced in D3.1 are replaced by the ones in D3.2. The older versions are obsolete and should be disregarded. The inspection protocols cover the definition of the test vehicle, HMI aspects, environmental conditions, and functional safety. The inspection protocols are used to prepare for the physical tests as well as evaluating the performance of the vehicle. The testing protocols address longitudinal, lateral, and stability-oriented traffic scenarios. The longitudinal scenarios include a pedestrian crossing the road in front of the vehicle, or the situation where a driver approaches a stationary queue of cars. Involuntarily lane departures and cars in the blind spot during a lane change are situations covered by the lateral scenarios. Exiting a highway, avoiding an obstacle, and braking on a partially ice-covered road surface are examples of traffic scenarios related to stability.
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| 19. |
- Johansson, Henrik, et al.
(författare)
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Targeted resequencing of candidate genes using Selector Probes
- 2011
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Ingår i: Nucleic Acids Research. - : Oxford University Press (OUP). - 0305-1048 .- 1362-4962. ; 39:2, s. e8-
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Tidskriftsartikel (refereegranskat)abstract
- Targeted genome enrichment is a powerful tool for making use of the massive throughput of novel DNA-sequencing instruments. We herein present a simple and scalable protocol for multiplex amplification of target regions based on the Selector technique. The updated version exhibits improved coverage and compatibility with next-generation-sequencing (NGS) library-construction procedures for shotgun sequencing with NGS platforms. To demonstrate the performance of the technique, all 501 exons from 28 genes frequently involved in cancer were enriched for and sequenced in specimens derived from cell lines and tumor biopsies. DNA from both fresh frozen and formalin-fixed paraffin-embedded biopsies were analyzed and 94 specificity and 98 coverage of the targeted region was achieved. Reproducibility between replicates was high (R 2=0, 98) and readily enabled detection of copy-number variations. The procedure can be carried out in <24 h and does not require any dedicated instrumentation.
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