| 1. |
- Al-Murani, F., et al.
(författare)
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Community and stakeholders' engagement in the prevention and management of Type 2 diabetes : a qualitative study in socioeconomically disadvantaged suburbs in region Stockholm
- 2019
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Ingår i: Global Health Action. - : Informa UK Limited. - 1654-9716 .- 1654-9880. ; 12:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: Community-based approaches have been identified as an effective strategy to address the growing burden of noncommunicable diseases (NCDs) worldwide. However, little is known about community as a concept among people living in socioeconomically disadvantaged settings and stakeholders’ interactions and engagement in NCDs prevention and management.Objective: The aim of this study was to understand; (1) the meaning of community among people living in socioeconomically disadvantaged suburbs in Region Stockholm and (2) how communities interact and engage with stakeholders at local and regional levels for the prevention and management of type 2 diabetes (T2D).Methods: This qualitative study was conducted in three municipalities in Region Stockholm with a high proportion of migrants. Multiple data collection methods were used, including observations of community activities; interviews with community members, representatives of public authorities and NGOs; and group interviews with healthcare providers. Data were analyzed using content analysis.Results: Community was perceived as living in close proximity with shared beliefs, values and resources. Although they recognized its social and cultural diversity, community members focused more on the commonalities of living in their neighborhood and less on their differences in country of birth and languages spoken. Several mismatches between awareness of community needs and the available skills and resources among stakeholders for T2D prevention were identified. Stakeholders expressed awareness of T2D risk and interest in addressing it in a culturally appropriate manner.Conclusion: Interaction between the communities and stakeholders was limited, as was engagement in T2D prevention and management. This highlights barriers in the collaboration between community, healthcare institutions and other stakeholders which consequently affect the implementation of preventive interventions. Innovative ways to link the community to the healthcare sector and other local government institutions are needed to build the capacity of health systems for T2D prevention in socioeconomically disadvantaged communities.
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| 2. |
- Björk, Anne, et al.
(författare)
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Measurements of ECP in serum and the impact of plasma coagulation
- 2000
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Ingår i: Allergy. European Journal of Allergy and Clinical Immunology. - : Wiley. - 0105-4538 .- 1398-9995. ; 55:5, s. 442-448
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Tidskriftsartikel (refereegranskat)abstract
- Serum measurement of ECP (eosinophil cationic protein) is used as an indication of eosinophil activation in diseases such as asthma. The levels are dependent on sample handling, since a certain amount of ECP is released during storage. The mechanisms that induce this in vitro release are not known, but are supposed to be related to the coagulation process. The aim of this study was to investigate this further. ECP was measured in EDTA plasma and serum at 22 and 37°C from healthy individuals and patients with asthma and allergy. The serum levels of ECP increased with temperature. Recalcification of citrated plasma in the presence of granulocytes with increasing concentrations of Ca2+ showed a dissociation between the levels of ECP and the occurrence of coagulation. Further experiments indicated that plasma coagulation is not of any importance for the degranulation of eosinophils, nor did the addition of platelets or mononuclear cells affect the ECP levels. Incubations of granulocytes with fresh or frozen plasma and Ca2+suggested the existence of a freezing labile factor in plasma, necessary for the degranulation of healthy eosinophils, but not for allergic/asthmatic eosinophils. Further experiments with pure eosinophils indicated the existence of factors in serum and plasma which facilitate ECP secretion of an active, temperature-dependent nature. We conclude that the raised ECP levels in serum, as compared to EDTA plasma, are unrelated to the coagulation process, but are due to the continuous secretion ex vivo of ECP from active eosinophils. This process is time and temperature dependent and may be facilitated by eosinophil-activating components in the extracellular environment.
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| 3. |
- Carlson, M, et al.
(författare)
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Human eosinophil peroxidase : purification and characterization
- 1985
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Ingår i: Journal of Immunology. - 0022-1767 .- 1550-6606. ; 134:3, s. 1875-1879
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Tidskriftsartikel (refereegranskat)abstract
- Human eosinophil peroxidase (EPO) was isolated from granules from granulocytes of a patient with hypereosinophilia. The granules were extracted by means of 0.2 M NaAc, pH 4.0. The purification steps included gel filtration chromatography on Sephadex G-75 superfine and ion-exchange chromatography on CM-Sephadex G-50. The purified protein showed one band on agarose-electrophoresis, a high peroxidase activity, and a 415-nm/280 nm ratio of 1.15. After reduction, EPO showed two bands on SDS-PAGE of m.w. 52,000 and 15,000, respectively. On gel filtration, the unreduced protein had a m.w. of approximately 77,000. Amino acid analyses showed a high content of arginine and aspartic acid. Monospecific antibodies to EPO were prepared in rabbits, and a specific radioimmunoassay was developed. There was an almost linear correlation between the content of EPO measured by the radioimmunoassay and the number of eosinophils in a mixed cell extract from reference material, indicating the eosinophil origin of EPO. The content of EPO was estimated to be 15.0 micrograms/10(6) eosinophils.
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| 4. |
- Dahlén, Inger, et al.
(författare)
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Changes in inflammatory markers following treatment of acute exacerbationsof obstructive pulmonary disease
- 2001
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Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 95:11, s. 891-897
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Tidskriftsartikel (refereegranskat)abstract
- The aim ofthe study was to investigate changes in inflammatory markers following emergency treatment of obstructive pulmonary disease. The study comprised 43 patients. After acute treatment, they were given either 30 mg of prednisolone p.o. or 1600 microg of inhaled budeson de daily for 1 week. Over the following 3 weeks, all the patients were given 1600 microg of inhaled budesonide daily. Blood samples for measurements of eosinophil cationic protein (S-ECP), eosinophil peroxidase (S-EPO), total eos nophil count (B-Eos), myeloperoxidase (S-MPO) and human neutrophil lipocaline (HNL) were taken and spirometry was performed before emergency treatment and after 1 and 4 weeks. There was no difference in the improvement in forced expiratory volume in 1 sec (FEV1) between patients given prednisolone or budesonide. Patients with an improvement in FEV1 of >20% of baseline after 1 and 4 weeks displayed a larger decrease in eosinophil markers. The correlation between deltaFEV1 and deltaS-ECP was r= -0.37, P < 0.05, deltaS-EPO -0.40, P < 0.01 and deltaB-Eos -0.44, P < 0.01, after 4 weeks. This correlation was highly significant in patients who had smoked < or = 5 pack-years, while the correlation was not significant in patients with a longer smoking history and chronic airflow limitation (best FEV <80% of predicted). We conclude that the change in eosinophil markers is correlated to the improvement in lung function in non-smokers or short-term smokers following the emergency treatment of obstructive pulmonary disease. This study indicates that following eosinophil markers is more useful in patients with asthma than patients with COPD.
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| 5. |
- Dahlén, Inger, et al.
(författare)
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Inflammatory markers in acute exacerbations of obstructive pulmonary disease : predictive value in relation to smoking history
- 1999
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Ingår i: Respiratory Medicine. - 0954-6111 .- 1532-3064. ; 93:10, s. 744-751
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to investigate the relationship between the effect of emergency treatment and inflammatory markers in patients with acute exacerbations of obstructive pulmonary disease, especially with respect to smoking history. We investigated 50 unselected patients with acute bronchial obstruction. Blood, urine and sputum samples were taken and analysed for eosinophil and neutrophil markers. The patients were observed for at least 2 h and recordings of forced expiratory volume in 1 s (FEV1) were taken. They were re-examined after 1 and 4 weeks. The absolute levels of inflammatory markers did not differ significantly between non- or short-term smokers (< or = 5 pack-years) and long-term smokers (> 5 pack-years) with the exception of myeloperoxidase in serum (S-MPO), which was higher in long-term smokers. The patients with higher levels of eosinophil markers before emergency treatment experienced a greater improvement in lung function. In non- or short-term smokers this relationship was found in blood and urine, whereas in long-term smokers it was seen in sputum. No correlation was found between neutrophil markers and changes in lung function. We conclude that patients with obstructive pulmonary disease with acute exacerbations and high levels of eosinophil markers respond well to treatment.
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| 6. |
- Guintivano, Jerry, et al.
(författare)
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Meta-Analyses of Genome-Wide Association Studies for Postpartum Depression
- 2023
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Ingår i: American Journal of Psychiatry. - : American Psychiatric Association Publishing. - 0002-953X .- 1535-7228. ; 180:12, s. 884-895
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Postpartum depression (PPD) is a common subtype of major depressive disorder (MDD) that is more heritable, yet is understudied in psychiatric genetics. The authors conducted meta-analyses of genome-wide association studies (GWASs) to investigate the genetic architecture of PPD.METHOD: Meta-analyses were conducted on 18 cohorts of European ancestry (17,339 PPD cases and 53,426 controls), one cohort of East Asian ancestry (975 cases and 3,780 controls), and one cohort of African ancestry (456 cases and 1,255 controls), totaling 18,770 PPD cases and 58,461 controls. Post-GWAS analyses included 1) single-nucleotide polymorphism (SNP)-based heritability ([Formula: see text]), 2) genetic correlations between PPD and other phenotypes, and 3) enrichment of the PPD GWAS findings in 27 human tissues and 265 cell types from the mouse central and peripheral nervous system.RESULTS: No SNP achieved genome-wide significance in the European or the trans-ancestry meta-analyses. The [Formula: see text] of PPD was 0.14 (SE=0.02). Significant genetic correlations were estimated for PPD with MDD, bipolar disorder, anxiety disorders, posttraumatic stress disorder, insomnia, age at menarche, and polycystic ovary syndrome. Cell-type enrichment analyses implicate inhibitory neurons in the thalamus and cholinergic neurons within septal nuclei of the hypothalamus, a pattern that differs from MDD.CONCLUSIONS: While more samples are needed to reach genome-wide levels of significance, the results presented confirm PPD as a polygenic and heritable phenotype. There is also evidence that despite a high correlation with MDD, PPD may have unique genetic components. Cell enrichment results suggest GABAergic neurons, which converge on a common mechanism with the only medication approved by the U.S. Food and Drug Administration for PPD (brexanolone).
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| 7. |
- Karawajczyk, G., et al.
(författare)
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The differential release of eosinophil granule proteins : Studies on patients with acute bacterial and viral infections
- 1995
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Ingår i: Clinical and Experimental Allergy. - 0954-7894 .- 1365-2222. ; 25:8, s. 713-719
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Earlier in vitro studies have suggested that the eosinophil may release its granule proteins selectively depending on the stimulus to which the cell is exposed. OBJECTIVE: The object of the present study was to study the question of selective release in vivo by means of serum measurements of the two eosinophil granule proteins eosinophil cationic protein (ECP) and eosinophil peroxidase (EPO) in acute infections. METHODS: Fourty-six subjects with acute infections were studied before treatment, 20 with bacterial infections and 26 with viral infections. Serum ECP, EPO and MPO were measured by specific RIA. RESULTS: In acute bacterial infections ECP, but not EPO, was significantly raised in serum (P < 0.0001) compared with non-infected healthy subjects. In acute bacterial infections ECP was significantly correlated to the levels of the neutrophil marker myeloperoxidase (MPO) (rs = 0.96, P < 0.0001) but not to EPO. In acute viral infections neither ECP nor EPO were on average raised. However, almost 20% the patients had elevated levels of bot proteins. In the viral infections the serum-levels of ECP and EPO were correlated (rs = 0.63, P < 0.001), but no correlation was found with MPO. CONCLUSION: It is concluded that eosinophils are activated during acute bacterial infections and that this activation results in the preferential mobilisation of ECP. The simultaneous assay of the two eosinophil proteins, ECP and EPO, may give new insight into the role of the eosinophil in disease.
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| 8. |
- Magnusson, J, et al.
(författare)
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A kinetic study in adults with food hypersensitivity assessed as eosinophil activation in fecal samples
- 2003
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Ingår i: Clinical and Experimental Allergy. - : Wiley. - 0954-7894 .- 1365-2222. ; 33:8
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Immune-mediated food hypersensitivity affecting the gut is difficult to evaluate, and objective tools to diagnose local gastrointestinal (GI) inflammatory reactions are lacking. OBJECTIVES: To determine whether allergic manifestations in adults with a history of food-related GI symptoms could be assessed in feces during symptomatic and non-symptomatic periods, using the surrogate markers, eosinophil cationic protein (ECP), eosinophil protein X (EPX) and myeloperoxidase (MPO). METHODS: Thirteen subjects with food hypersensitivity-related GI symptoms, confirmed by a positive double-blind placebo-controlled food challenge (DBPCFC), were subjected to an open kinetic food challenge design for 6 weeks. Symptoms were recorded and scored during the 3-week study period and stool samples were obtained every day. The surrogate markers ECP, EPX and MPO were measured in the supernatants from feces samples. RESULTS: A significant increase in abdominal pain, distension and flatulence was observed during challenge, with a gradual decrease during elimination diet. Both between days and subjects, EPX levels were more frequently increased compared to ECP and MPO. Individuals with a history of a short duration of symptoms had significantly higher mean levels of EPX and MPO than those with a longer duration of symptoms. CONCLUSIONS: An overall increase in levels of eosinophil markers, in particular EPX, was observed in feces from patients with food-related GI symptoms. However, rather than being a tool to differentiate symptomatic from non-symptomatic periods, EPX might be used for detecting an ongoing clinical or subclinical chronic inflammation, that may have an impact on the patient's clinical course of GI symptoms.
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| 9. |
- Xu, S Y, et al.
(författare)
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Purification and characterization of a human neutrophil lipocalin (HNL) from the secondary granules of human neutrophils
- 1994
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Ingår i: Scandinavian Journal of Clinical and Laboratory Investigation. - 0036-5513 .- 1502-7686. ; 54:5, s. 365-376
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Tidskriftsartikel (refereegranskat)abstract
- A 45 kDa-protein was purified from the granules of human neutrophils. The protein consists of two apparently identical subunits. The isoelectric point was pH8.40, and the molecular weight 45kDa (unreduced) or 24kDa (reduced). Treatment of the protein with Endoglucosidase F resulted in a reduction in the molecular weight to 20 kDa, indicating the presence of N-linked carbohydrate. The extinction coefficient was E1%lcm = 13.76 at 280nm. The 60 amino acid sequence revealed up to 65% sequence homology with rat α2-microglobulin-related protein, which belongs to the lipocalin family. The protein co-sedimented with secondary (specific) granule marker proteins and correlated to the neutrophil content of Lactoferrin (r = 0.81,p<0.001) and was estimated to be 0.59 fig 10-6 cells. Release studies showed that the neutrophils released 51.4 ± 9.0% of the total cellular content of the protein when they were exposed to serum-opsonized particles, which was much higher than the release of Myeloperoxidase (12.7 ±3.5%) and Lactoferrin (22.9 ± 4.7%). The N-terminal and four tryptic fragment amino acid sequence of the protein was identical with an N-formyl peptide binding 24 kDa protein and gelatinase associated protein of human neutrophils. In conclusion, we have purified and characterized a protein, human neutrophil lipocalin (HNL), from the secondary granules of human neutrophils and shown that it is readily mobilized from the neutrophils upon stimulation.
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| 10. |
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- 2019
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Tidskriftsartikel (refereegranskat)
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