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- Cheng, Q., et al.
(author)
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Clinical epidemiology of Guillain-Barré syndrome in adults in Sweden 1996-97 : A prospective study
- 2000
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In: European Journal of Neurology. - : Wiley. - 1351-5101 .- 1468-1331. ; 7:6, s. 685-692
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Journal article (peer-reviewed)abstract
- We described clinical manifestations, outcomes, prognostic indicators and clinico-epidemiological subgroups for 53 adult patients with Guillain-Barré syndrome (GBS) in Sweden during the period 1996-97. These patients were identified from a population of 2.8 million inhabitants and prospectively followed up for one year by a network of neurologists. An additional 10 cases, of whom five were adults who had not been prospectively followed up, were not included in the analyses. At 6 months after onset 80% of the patients could walk without aid, while at 1 year 46% were fully recovered, 42% had mild residual signs or symptoms, 4% had moderate and 6% severe disabilities, and 2% had died. Intravenous human immunoglobulin or plasmapheresis were used in 72% of the patients. The sum of the Medical Research Council (MRC) score at nadir was found as the only significant predictor for residual signs at 1 year in a multivariate model. Three subgroups, with different clinico-epidemiological characteristics, were identified by using cluster analysis. In conclusion, GBS in Sweden is frequently preceded by a respiratory infection, is often treated with immunomodulatory therapies, and exhibits a high recovery rate and a low fatality rate.
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- Behboudi, Afrouz, 1967, et al.
(author)
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Evolutionary aspects of the genomic organization of rat chromosome 10.
- 2002
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In: Cytogenetic and genome research. - : S. Karger. - 1424-8581 .- 1424-859X. ; 96:1-4, s. 52-9
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Journal article (peer-reviewed)abstract
- Using FISH and RH mapping a chromosomal map of rat chromosome 10 (RNO10) was constructed. Our mapping data were complemented by other published data and the final map was compared to maps of mouse and human chromosomes. RNO10 contained segments homologous to mouse chromosomes (MMU) 11, 16 and 17, with evolutionary breakpoints between the three segments situated in the proximal part of RNO10. Near one of these breakpoints (between MMU17 and 11) we found evidence for an inversion ancestral to the mouse that was not ancestral to the condition in the rat. Within each of the chromosome segments identified, the gene order appeared to be largely conserved. This conservation was particularly clear in the long MMU11-homologous segment. RNO10 also contained segments homologous to three human chromosomes (HSA5, 16, 17). However, within each segment of conserved synteny were signs of more extensive rearrangements. At least 13 different evolutionary breakpoints were indicated in the rat-human comparison. In contrast to what was found between rat and mouse, the rat-human evolutionary breaks were distributed along the entire length of RNO10.
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| 4. |
- Fager, Christian, 1974, et al.
(author)
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A comprehensive analysis of IMD behavior in RF CMOS power amplifiers
- 2004
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In: IEEE Journal of Solid-State Circuits. - 0018-9200. ; 39:1, s. 24-34
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Journal article (peer-reviewed)abstract
- This paper presents a comprehensive analysis of nonlinear intermodulation distortion (IMD) behavior in RF CMOS power amplifiers (PAs). Separate analyses are presented for small- and large-signal operation regimes. Especially, a new, simple, large-signal behavioral IMD analysis method is presented that allows the mechanisms dominant for IMD generation to be identified and their individual contributions to be studied.By combining these analyses, typical IMD versus input powercharacteristics of MOSFET PAs can be predicted and understood for different classes of operation.Various measurements made on a 950-MHz RF CMOS PA areused to demonstrate typical behavior and validate the proposed theory. Prediction of IMD using a standard CMOS transistor model is also evaluated and is shown to give good agreement with the measurements.
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- Gómez-Fabre, Pedro M, et al.
(author)
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Predictions based on the rat-mouse comparative map provide mapping information on over 6000 new rat genes.
- 2002
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In: Mammalian genome : official journal of the International Mammalian Genome Society. - : Springer Science and Business Media LLC. - 0938-8990 .- 1432-1777. ; 13:4, s. 189-93
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Journal article (peer-reviewed)abstract
- For identification of ECS ("evolutionarily conserved segments") between rat and mouse, 893 rat-mouse orthologous gene-pairs were brought together with zoo-FISH analysis. In total, 59 autosomal ECS and 4 X-chromosomal ones were detected. Combining FISH and zoo-FISH data, the segments were anchored on the rat chromosomes, providing an improved comparative map between the two species. Since chromosomal evolution is a slow process, it is reasonable to assume that the genome organization, including gene order, is essentially conserved within the ECS. In this way we assigned tentative subchromosomal map positions to 303 rat genes, for which no regional mapping information was available. Furthermore, the concept of prediction mapping was extended to unmapped rat homologs of genes, which in the mouse are situated inside or in the vicinity of an ECS. For a total of 6669 genes, we predicted a single rat chromosomal position, whereas for another 448 genes we could predict that they were located in one of two possible positions. Thus, our study has increased the number of genes for which there is positional mapping information in the rat almost fivefold.
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| 8. |
- Jin, YP, et al.
(author)
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Predicting multiple sclerosis at optic neuritis onset
- 2003
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In: Multiple sclerosis (Houndmills, Basingstoke, England). - : SAGE Publications. - 1352-4585 .- 1477-0970. ; 9:2, s. 135-141
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Journal article (peer-reviewed)abstract
- Using multivariate analyses, individual risk of clinically definite multiple sclerosis (C DMS) after monosymptomatic optic neuritis (MO N) was quantified in a prospective study with clinical MO N onset during 1990 -95 in Stockholm, Sweden. During a mean follow-up time of 3.8 years, the presence of MS-like brain magnetic resonance imaging (MRI) lesions and oligoclonal immunoglobulin (Ig) G bands in cerebrospinal fluid (CSF) were strong prognostic markers of C DMS, with relative hazard ratios of 4.68 {95% confidence interval (CI) 2.21 -9.91} and 5.39 (95% C I 1.56 -18.61), respectively. Age and season of clinical onset were also significant predictors, with relative hazard ratios of 1.76 (95% C I 1.02 -3.04) and 2.21 (95% C I 1.13 -3.98), respectively. Based on the above two strong predicto rs, individual probability of C DMS development after MO N was calculated in a three-quarter sample drawn from a cohort, with completion of follow-up at three years. The highest probability, 0.66 (95% C I 0.48 -0.80), was obtained for individuals presenting with three or more brain MRI lesions and oligoclonal bands in the C SF, and the lowest, 0.09 (95% C I 0.02 -0.32), for those not presenting with these traits. Medium values, 0.29 (95% C I 0.13 -0.53) and 0.32 (95% C I 0.07 -0.73), were obtained for individuals discordant for the presence of brain MRI lesions and oligoclonal bands in the C SF. These predictions were validated in an external one-quarter sample.
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