| 1. |
- Bergman, Penny, et al.
(författare)
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Age-related decline in senses and cognition : A Review
- 2021
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Ingår i: Senses and Sciences. - Rom : Eleven Senses Info. - 2284-2489. ; 8:2, s. 1264-1292
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Tidskriftsartikel (refereegranskat)abstract
- Background: Age-related decline in the senses is well-known, with a decline in the sensitivity of all senses having been observed. Decline in the senses can be connected to different neurological disorders and cognitive function and may even be a possible predictor of death. Aim: The aim of this narrative review was to find and explore recent literature on the covariation between age-related decline in the different senses and co-existing effects on cognitive ability and quality of life. Results and Discussion: Six themes could be identified, these were: “Decline due to normal ageing?”, “Technical aids and solutions”, “Wellbeing”, “Memory training”, “Verbal exercises” and “Sensory training”. Large differences between the different senses were obtained. However, the senses showed similar patterns in the different themes. Conclusion: It could be concluded that there are many similarities concerning the connections between the decline in individual senses and cognition and memory. Measurements of wellbeing and quality of life are common in the evaluation of the senses, and all types of decline have an impact on activities in daily life.
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| 2. |
- Nilsson, Maria H., et al.
(författare)
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Psychometric properties of the general self-efficacy scale in Parkinson's disease
- 2015
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Ingår i: Acta Neurologica Scandinavica. - : Wiley-Blackwell. - 0001-6314 .- 1600-0404. ; 132:2, s. 89-96
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: This study aimed to investigate the psychometric properties of the General Self-Efficacy Scale (GSE) in people with Parkinson's disease (PD). More specifically, we investigated data completeness, scaling assumptions, targeting, reliability, and construct validity.MATERIALS AND METHODS: This study involves data available from two different projects that included people diagnosed with PD for at least 1 year, yielding two samples (1 and 2). The combined total sample (N = 346; 60% men) had a mean (SD) age and PD duration of 71 (8.9) and 9 years (6.3), respectively. Both samples received a self-administered survey by mail, which was administered twice in sample 2. Additional data (e.g., clinical assessments) were available for Sample 1.RESULTS: Total GSE scores were computable for 336 participants (97%). Corrected item-total correlations exceeded 0.4. Principal component analyses identified one component (the eigenvalue of the first component extracted was 6.9), explaining 69% of the total variance. Floor and ceiling effects were < 6%. Internal consistency (coefficient alpha) was 0.95. Analyses of test-retest reliability yielded (ICC) values from 0.69 to 0.80. The highest value refers to those (n = 47) with identical self-ratings of mobility (in the on condition) at both tests; the standard error of measurement was 3.1 points. Construct validity was further supported by correlations in accordance with a priori expectations.CONCLUSIONS: This study provides support for the validity and reliability of GSE scores in people with PD; the GSE can thus serve as a valuable outcome measurement in clinical practice and research.
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| 3. |
- Andersson, Ingemar, 1950-
(författare)
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Rehabilitering vid långvarig smärta
- 2010. - 2
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Ingår i: Smärta och smärtbehandling. - Stockholm : Liber. - 9789147084135 ; , s. 401-409
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 4. |
- Bergman, Penny, et al.
(författare)
-
Age-related decline in senses and cognition: A Review
- 2021
-
Ingår i: Senses and Sciences. - : IVL Svenska Miljöinstitutet. - 2284-2489. ; 8:2, s. 1264-1292
-
Tidskriftsartikel (refereegranskat)abstract
- Background: Age-related decline in the senses is well-known, with a decline in the sensitivity of all senses having been observed. Decline in the senses can be connected to different neurological disorders and cognitive function and may even be a possible predictor of death. Aim: The aim of this narrative review was to find and explore recent literature on the covariation between age-related decline in the different senses and co-existing effects on cognitive ability and quality of life. Results and Discussion: Six themes could be identified, these were: “Decline due to normal ageing?”, “Technical aids and solutions”, “Wellbeing”, “Memory training”, “Verbal exercises” and “Sensory training”. Large differences between the different senses were obtained. However, the senses showed similar patterns in the different themes. Conclusion: It could be concluded that there are many similarities concerning the connections between the decline in individual senses and cognition and memory. Measurements of wellbeing and quality of life are common in the evaluation of the senses, and all types of decline have an impact on activities in daily life.
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| 5. |
- Andersson, C, et al.
(författare)
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The three ZNT8 autoantibody variants together improve the diagnostic sensitivity of childhood and adolescent type 1 diabetes
- 2011
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Ingår i: Autoimmunity. - : Taylor & Francis. - 0891-6934 .- 1607-842X. ; 44:5, s. 394-405
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Tidskriftsartikel (refereegranskat)abstract
- Aims: We tested whether autoantibodies to all three ZnT8RWQ variants, GAD65, insulinoma-associated protein 2 (IA-2), insulin and autoantibodies to islet cell cytoplasm (ICA) in combination with human leukocyte antigen (HLA) would improve the diagnostic sensitivity of childhood type 1 diabetes by detecting the children who otherwise would have been autoantibody-negative.Methods: A total of 686 patients diagnosed in 1996–2005 in Skåne were analyzed for all the seven autoantibodies [arginin 325 zinc transporter 8 autoantibody (ZnT8RA), tryptophan 325 zinc transporter 8 autoantibody (ZnT8WA), glutamine 325 Zinc transporter 8 autoantibody (ZnT8QA), autoantibodies to glutamic acid decarboxylase (GADA), Autoantibodies to islet-antigen-2 (IA-2A), insulin autoantibodies (IAA) and ICA] in addition to HLA-DQ genotypes.Results: Zinc transporter 8 autoantibody to either one or all three amino acid variants at position 325 (ZnT8RWQA) was found in 65% (449/686) of the patients. The frequency was independent of age at diagnosis. The ZnT8RWQA reduced the frequency of autoantibody-negative patients from 7.5 to 5.4%—a reduction by 28%. Only 2 of 108 (2%) patients who are below 5 years of age had no autoantibody at diagnosis. Diagnosis without any islet autoantibody increased with increasing age at onset. DQA1-B1*X-0604 was associated with both ZnT8RA (p = 0.002) and ZnT8WA (p = 0.01) but not with ZnT8QA (p = 0.07). Kappa agreement analysis showed moderate (>0.40) to fair (>0.20) agreement between pairs of autoantibodies for all combinations of GADA, IA-2A, ZnT8RWQA and ICA but only slight ( < 0.19) agreement for any combination with IAA.Conclusions: This study revealed that (1) the ZnT8RWQA was common, independent of age; (2) multiple autoantibodies were common among the young; (3) DQA1-B1*X-0604 increased the risk for ZnT8RA and ZnT8WA; (4) agreement between autoantibody pairs was common for all combinations except IAA. These results suggest that ZnT8RWQA is a necessary complement to the classification and prediction of childhood type 1 diabetes as well as to randomize the subjects in the prevention and intervention of clinical trials.
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| 6. |
- Brorsson, Caroline, et al.
(författare)
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Correlations between islet autoantibody specificity and the SLC30A8 genotype with HLA-DQB1 and metabolic control in new onset type 1 diabetes
- 2011
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Ingår i: Autoimmunity. - : Taylor & Francis. - 0891-6934 .- 1607-842X. ; 44:2, s. 107-114
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Tidskriftsartikel (refereegranskat)abstract
- We hypothesised that the correlation between autoantibody specificity for the ZnT8 Arg325Trp isoforms and the type 2 diabetes-associated rs13266634 may affect beta-cell function at type 1 diabetes (T ID) onset. To study this, we tested 482 newly diagnosed diabetic probands and 478 healthy siblings from the Danish population-based T1D registry for autoantibodies to ZnT8 (ZnT8A) in addition to GAD65 and IA-2. The prevalence and titres of autoantibodies were correlated with genotypes for rs13266634 and HLA-DQB1, age at diagnosis (AAD) and insulin dose-adjusted HbA1c (IDAA1c), as a proxy for residual beta-cell function. We replicated the correlation between rs13266634 genotypes and specificity for the ZnT8-Argenine (ZnT8R) and ZnT8-Tryptophan (ZnT8W) isoforms previously reported. ZnT8A overlapped substantially with autoantibodies to glutamate decarboxylase 65 (GADA) and IA-2 (IA-2A) and correlated significantly with IA-2A prevalence (p < 2e-16). No effect on IDAA1c was demonstrated for ZnT8A or rs13266634. We found a correlation between ZnT8R positivity and HLA-DQB1*0302 genotypes (p = 0.016), which has not been shown previously. Furthermore, significantly lower ZnT8R and GADA prevalence and titres was found among probands with AAD < 5 years (prevalence: p = 0.004 and p = 0.0001; titres: p = 0.002 and p = 0.001, respectively). The same trend was observed for IA-2A and ZnT8W; however, the difference was non-significant. Our study confirms ZnT8 as a major target for autoantibodies at disease onset in our Danish T1D cohort of children and adolescents, and we have further characterised the relationship between autoantibody specificity for the ZnT8 Arg325Trp epitopes and rs13266634 in relation to established autoantibodies, AAD, measures of beta-cell function and HLA-DQB1 genotypes in T1D.
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| 7. |
- Kanatsuna, Norio, et al.
(författare)
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Autoimmunity against INS-IGF2 Protein Expressed in Human Pancreatic Islets
- 2013
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Ingår i: Journal of Biological Chemistry. - 0021-9258 .- 1083-351X. ; 288:40, s. 29013-29023
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Tidskriftsartikel (refereegranskat)abstract
- Insulin is a major autoantigen in islet autoimmunity and progression to type 1 diabetes. It has been suggested that the insulin B-chain may be critical to insulin autoimmunity in type 1 diabetes. INS-IGF2 consists of the preproinsulin signal peptide, the insulin B-chain, and eight amino acids of the C-peptide in addition to 138 amino acids from the IGF2 gene. We aimed to determine the expression of INS-IGF2 in human pancreatic islets and autoantibodies in newly diagnosed children with type 1 diabetes and controls. INS-IGF2, expressed primarily in beta cells, showed higher levels of expression in islets from normal compared with donors with either type 2 diabetes (p = 0.006) or high HbA1c levels (p < 0.001). INS-IGF2 autoantibody levels were increased in newly diagnosed patients with type 1 diabetes (n = 304) compared with healthy controls (n = 355; p < 0.001). Displacement with cold insulin and INS-IGF2 revealed that more patients than controls had doubly reactive insulin-INS-IGF2 autoantibodies. These data suggest that INS-IGF2, which contains the preproinsulin signal peptide, the B-chain, and eight amino acids of the C-peptide may be an autoantigen in type 1 diabetes. INS-IGF2 and insulin may share autoantibody-binding sites, thus complicating the notion that insulin is the primary autoantigen in type 1 diabetes.
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| 8. |
- Karpman, D, et al.
(författare)
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Platelet activation in hemolytic uremic syndrome
- 2006
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Ingår i: Seminars in Thrombosis and Hemostasis. - : Georg Thieme Verlag. - 0094-6176 .- 1098-9064. ; 32:2, s. 128-145
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Tidskriftsartikel (refereegranskat)abstract
- Platelet consumption in platelet-fibrin aggregates leading to thrombocytopenia and small vessel obstruction are major features of the hemolytic uremic syndrome (HUS). Although thrombocytopenia has been correlated to poor prognosis, the mechanisms by which thrombocytopenia develops in HUS have not been completely elucidated. However, plausible explanations have been platelet contact with thrombogenic surfaces and/or direct contact with an aggregating agent. This article summarizes several mechanisms of platelet activation, interactions with leukocytes, chemokine release, complement activation, and antimicrobial defense. Specific mechanisms are outlined by which platelets may be activated, leading to thrombocytopenia during HUS. In diarrhea-associated HUS Shiga toxin has been shown to injure the endothelium, thus exposing the subendothelium, releasing tissue factor, and rendering the vessel wall prothrombotic. Shiga toxin also binds to and activates platelets. The toxin may activate endothelial cells and platelets simultaneously. In atypical HUS the alternative complement pathway is activated because of mutations in complement regulatory proteins. Mutated factor H does not bind to endothelium and platelets efficiently, enabling complement activation on these cells. In thrombotic thrombocytopenic purpura, intravascular platelet clotting Occurs due to dysfunction of the von Willebrand factor (VWF)-cleaving protease ADAMTS13. Thrombi are formed by binding of platelets to ultralarge VWF multimers.
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| 9. |
- Kjellerås, Jennifer, et al.
(författare)
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Improved efficacy by using the pTnT-rhtTG plasmid for the detection of celiac disease specific tissue transglutaminase autoantibodies in radioligand binding assays
- 2011
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Ingår i: Scandinavian Journal of Clinical and Laboratory Investigation. - : Informa Healthcare. - 0036-5513 .- 1502-7686. ; 71:8, s. 701-704
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Tidskriftsartikel (refereegranskat)abstract
- Background: Tissue transglutaminase (tTG) autoantibodies are serological markers for celiac disease. The aim was to study the efficacy of the pTnT-rhtTG plasmid and subsequent diagnostic accuracy of tTG autoantibodies for childhood celiac disease using radioligand binding assays.Methods: Coupled in vitro transcription and translation of tTG were performed by pTnT-rhtTG as well as by the pGEMt Easy-rhtTG vectors using the TNT SP6 Coupled Reticulocyte Lysate System in the presence of [(35)S] methionine. Sera from 190 celiac disease children and 74 controls were measured for tTG autoantibodies in two separate radioligand binding assays using anti-human IgA agarose and protein A sepharose beads for the detection of IgA-tTG and IgG-tTG, respectively.Results: Median incorporation of [(35)S] methionine into the pTnT-rhtTG was 26% compared to 16% for the pGEMt Easy-rhtTG plasmid (p = 0.0016). Using pTnT-rhtTG (as compared to pGEMt Easy-rhtTG), sensitivities were IgA-tTG = 96.3% (95.7%) and IgG-tTG = 95.8% (97.3%) and specificities were IgA-tTG = 91.9% (90.5%) and IgG-tTG = 94.6% (98.4%). According to receiver operator characteristics for the pTnT (pGEMt Easy) assays, area under the curves were IgA-tTG = 98.4% (98.4%) and IgG-tTG = 97.7% (97.2%), respectively.Conclusion: The pTnT-rhtTG plasmid increased the efficacy of tTG antigen usage without reducing the diagnostic accuracy of IgA-tTG and IgG-tTG for childhood celiac disease. The pTnT-rhtTG plasmid is therefore recommended over the pGEMt Easy-rhtTG for the assessment of IgA-tTG and IgG-tTG using radioligand binding assays.
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| 10. |
- Nilsson, Anna-Lena, et al.
(författare)
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Relationship between Ljungan virus antibodies, HLA-DQ8, and insulin autoantibodies in newly diagnosed type 1 diabetes children
- 2013
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Ingår i: Viral immunology. - : Mary Ann Liebert, Inc.. - 0882-8245 .- 1557-8976. ; 26:3, s. 207-215
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Tidskriftsartikel (refereegranskat)abstract
- Environmental factors, including viral infections, may explain an increasing and fluctuating incidence of childhood type 1 diabetes (T1D). Ljungan virus (LV) isolated from bank voles have been implicated, but it is unclear whether LV contributes to islet autoimmunity, progression to clinical onset, or both, of T1D. The aim was to test whether LV antibodies (LVAb) were related to HLA-DQ and islet autoantibodies in newly diagnosed T1D patients (n = 676) and controls (n = 309). Patients, 0-18 years of age, diagnosed with T1D in 1996-2005 were analyzed for LVAb, HLA-DQ genotypes, and all seven known islet autoantibodies (GADA, IA-2A, IAA, ICA, ZnT8RA, ZnT8WA, and ZnT8QA). LVAb at 75th percentile, defined as cut off, was 90 (range 6-3936) U/mL and 4th quartile LVAb were found in 25% (170/676) of which 64% were < 10 (n = 108, p < 0.0001), and 27% were < 5 (n = 45; p < 0.0001) years old. The 4th quartile LVAb in children < 10 years of age correlated to HLA DQ2/8, 8/8, and 8/X (p < 0.0001). Furthermore, in the group with 4th quartile LVAb, 55% were IAA positive (p = 0.01) and correlation was found between 4th quartile LVAb and IAA in children < 10 years of age (p = 0.035). It is concluded that 1) LVAb were common among the young T1D patients and LVAb levels were higher in the younger age groups; 2) 4th quartile LVAb correlated with IAA; and 3) there was a correlation between 4th quartile LVAb and HLA-DQ8, particularly in the young patients. The presence of LVAb supports the notion that prior exposure to LV may be associated with T1D.
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