| 1. |
- Dieckmann, Regis, et al.
(författare)
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Antieosinophil Antibodies Alone or in Combination with Antineutrophil Cytoplasmic Antibodies (ANCA) Detected in Different Autoimmune Conditions
- 2023
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Ingår i: Journal of Immunology Research. - 2314-8861 .- 2314-7156. ; 2023
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Tidskriftsartikel (refereegranskat)abstract
- Circulating antieosinophil antibodies (AEOSA) have been associated with various autoimmune conditions affecting the liver, kidneys, lungs, and joints but are not part of routine clinical diagnostics. While analyzing human sera for antineutrophil cytoplasmic antibodies (ANCA) by indirect immunofluorescence (IIF) on granulocytes, 0.8% of analyzed samples were found to be reactive with eosinophils. Our aim was to determine the diagnostic relevance and antigenic specificity of AEOSA. AEOSA were seen either in combination with an myeloperoxidase (MPO)-positive p-ANCA (44%; AEOSA+/ANCA+) or on their own (56%; AEOSA+/ANCA-). AEOSA/ANCA positivity was seen in patients with thyroid disease (44%) or vasculitis (31%), while AEOSA+/ANCA- pattern was more common in patients with autoimmune disorders of the gastrointestinal tract and/or liver. Eosinophil peroxidase (EPX) was the main target recognized in 66% of the AEOSA+ sera by enzyme-linked immunosorbent assay (ELISA). Eosinophil cationic protein (ECP) and eosinophil-derived neurotoxin (EDN) were also identified as target antigens but less frequently and only in combination with EPX. In conclusion, we confirmed that EPX is a major target of AEOSA, illustrating the high antigenic potential of EPX. Our results also demonstrate the presence of concomitant AEOSA/ANCA positivity in a defined patient group. Further research should aim to elucidate the association of AEOSA with autoimmunity.
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| 2. |
- Herlitz, Johan, et al.
(författare)
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Suspicion and treatment of severe sepsis : An overview of the prehospital chain of care
- 2012
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Ingår i: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine. - : BioMed Central. - 1757-7241. ; 20:42
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Tidskriftsartikel (refereegranskat)abstract
- BackgroundSepsis is a life-threatening condition where the risk of death has been reported to be even higher than that associated with the major complications of atherosclerosis, i.e. myocardial infarction and stroke. In all three conditions, early treatment could limit organ dysfunction and thereby improve the prognosis.AimTo describe what has been published in the literature a/ with regard to the association between delay until start of treatment and outcome in sepsis with the emphasis on the pre-hospital phase and b/ to present published data and the opportunity to improve various links in the pre-hospital chain of care in sepsis.MethodsA literature search was performed on the PubMed, Embase (Ovid SP) and Cochrane Library databases.ResultsIn overall terms, we found a small number of articles (n=12 of 1,162 unique hits) which addressed the prehospital phase. For each hour of delay until the start of antibiotics, the prognosis appeared to become worse. However, there was no evidence that prehospital treatment improved the prognosis.Studies indicated that about half of the patients with severe sepsis used the emergency medical service (EMS) for transport to hospital. Patients who used the EMS experienced a shorter delay to treatment with antibiotics and the start of early goal-directed therapy (EGDT). Among EMS-transported patients, those in whom the EMS staff already suspected sepsis at the scene had a shorter delay to treatment with antibiotics and the start of EGDT.There are insufficient data on other links in the prehospital chain of care, i.e. patients, bystanders and dispatchers.ConclusionSevere sepsis is a life-threatening condition. Previous studies suggest that, with every hour of delay until the start of antibiotics, the prognosis deteriorates. About half of the patients use the EMS. We need to know more about the present situation with regard to the different links in the prehospital chain of care in sepsis.
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| 3. |
- Perman, Jeanna, 1981, et al.
(författare)
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The VLDL receptor promotes lipotoxicity and increases mortality in mice following an acute myocardial infarction.
- 2011
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Ingår i: The Journal of clinical investigation. - : American Society for Clinical Investigation. - 1558-8238 .- 0021-9738. ; 121:7, s. 2625-40
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Tidskriftsartikel (refereegranskat)abstract
- Impaired cardiac function is associated with myocardial triglyceride accumulation, but it is not clear how the lipids accumulate or whether this accumulation is detrimental. Here we show that hypoxia/ischemia-induced accumulation of lipids in HL-1 cardiomyocytes and mouse hearts is dependent on expression of the VLDL receptor (VLDLR). Hypoxia-induced VLDLR expression in HL-1 cells was dependent on HIF-1α through its interaction with a hypoxia-responsive element in the Vldlr promoter, and VLDLR promoted the endocytosis of lipoproteins. Furthermore, VLDLR expression was higher in ischemic compared with nonischemic left ventricles from human hearts and was correlated with the total lipid droplet area in the cardiomyocytes. Importantly, Vldlr-/- mice showed improved survival and decreased infarct area following an induced myocardial infarction. ER stress, which leads to apoptosis, is known to be involved in ischemic heart disease. We found that ischemia-induced ER stress and apoptosis in mouse hearts were reduced in Vldlr-/- mice and in mice treated with antibodies specific for VLDLR. These findings suggest that VLDLR-induced lipid accumulation in the ischemic heart worsens survival by increasing ER stress and apoptosis.
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| 4. |
- Ravn-Fischer, Annica, 1974, et al.
(författare)
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Inequalities in the early treatment of women and men with acute chest pain?
- 2012
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Ingår i: American Journal of Emergency Medicine. - : W.B. Saunders Co.. - 0735-6757 .- 1532-8171. ; 30:8, s. 1515-1521
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Tidskriftsartikel (refereegranskat)abstract
- PURPOSE: The aim of this study was to identify sex differences in the early chain of care for patients with chest pain. DESIGN: This is a retrospective study performed at 3 centers including all patients admitted to the emergency department because of chest pain, during a 3-month period in 2008, in the municipality of Göteborg. Chest pain or discomfort in the chest was the only inclusion criterion. There were no exclusion criteria. DATA SOURCES: Data were retrospectively collected from ambulance and medical records and electrocardiogram (ECG), echocardiography, and laboratory databases. MAIN FINDINGS: A total of 2588 visits (1248 women and 1340 men) made by 2393 patients were included. When adjusting for baseline variables, female sex was significantly associated with a prolonged delay time (defined as above median) between (a) admission to hospital and admission to a hospital ward (odds ratio [OR], 1.59; 95% confidence interval [CI], 1.25-2.03), (b) first physical contact and first dose of aspirin (OR, 2.22; 95% CI, 1.30-3.82), and (c) admission to hospital and coronary angiography (OR, 2.50; 95% CI, 1.29-5.13). Delay time to the first ECG recording did not differ significantly between women and men. PRINCIPAL CONCLUSIONS: Among patients hospitalized due to chest pain, when adjusting for differences at baseline, female sex was associated with a prolonged delay time until admission to a hospital ward, to administration of aspirin, and to performing a coronary angiography. There was no difference in delay to the first ECG recording.
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| 5. |
- Thang, ND, et al.
(författare)
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Characteristics of and outcome for patients with chest pain in relation to transport by the emergency medical services in a 20-year perspective
- 2012
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Ingår i: American Journal of Emergency Medicine. - : Elsevier BV. - 0735-6757 .- 1532-8171. ; 30:9, s. 1788-1795
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Tidskriftsartikel (refereegranskat)abstract
- AIM: The aims of this study were to describe the characteristics of and outcome of patients with chest pain in relation to transport by the emergency medical services (EMS) and to describe possible changes in this relationship in a 20-year perspective. METHODS: In the 2 periods, 1986 to 1987 and 2008, all patients with chest pain admitted to hospitals in Gothenburg, Sweden, were retrospectively evaluated in terms of previous history, final diagnosis, and mortality. P values were age adjusted. RESULTS: In 1986 to 1987 and 2008, 34% of 4270 patients with chest pain and 39% of 2286 patients, respectively, were transported to the hospital by the EMS (P = .0001). In both periods, patients who used EMS were older and had a higher prevalence of previous cardiovascular diseases and more often had a final diagnosis of acute myocardial infarction (AMI) than those who did not use EMS. The EMS users were more frequently hospitalized in 1986 to 1987 than in 2008 (P < .0001). Emergency medical service use was related to a significantly higher age-adjusted 1-year mortality in both periods for all patients with chest pain as well as for those hospitalized. Among hospitalized patients with myocardial ischemia and among patients with a final diagnosis of AMI, EMS use was associated with a higher 30-day mortality in 1986 to 1987. Regardless of the use of EMS, there was a decrease in the proportion of patients developing AMI as well as the rate of death at 30 days and 1 year in 2008 as compared with 1986 to 1987. CONCLUSIONS: For 20 years, the proportion of patients with chest pain using the EMS increased. EMS users were more frequently hospitalized in 1986 to 1987 than in 2008. In overall terms, mortality was higher among EMS users than among nonusers in both periods. Among hospitalized patients with myocardial ischemia and among patients with a final diagnosis of AMI, EMS use was associated with a higher 30-day mortality only in 1986 to 1987.
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| 6. |
- Thang, Nguyen Dang, et al.
(författare)
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Patients admitted to hospital with chest pain - Changes in a 20-year perspective.
- 2013
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Ingår i: International journal of cardiology. - : Elsevier BV. - 1874-1754 .- 0167-5273. ; 166:1, s. 141-146
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: To describe the differences in characteristics and outcome between two consecutive series of patients admitted to hospital with chest pain in a 20-year perspective. Particular emphasis is placed on changes in outcome in relation to the initial electrocardiogram (ECG). SUBJECTS: In the two periods, 1986-1987 and 2008, all patients with chest pain admitted to the study hospitals in Gothenburg, Sweden, were included. RESULTS: Five thousand and sixteen patients were registered in a period of 21months in 1986-1987 and 2287 patients were registered during 3months in 2008. In a comparison of the two time periods, the age of chest pain patients was not significantly different (mean age 60.1±17.8years in 1986-1987 and 59.8±19.1years in 2008, p=0.50). There was a lower prevalence of previous angina pectoris, congestive heart failure and current smoking in the second period, whereas a history of acute myocardial infarction, hypertension and diabetes mellitus had become more prevalent. The use of cardio-protective drugs increased and ECG changes indicating acute myocardial ischemia on admission to hospital decreased. Length of hospitalisation was reduced from a median of 5days to 3days (p<0.0001). A significant decrease in 30-day and 1-year mortality was found (3.8% in 1986-1987 vs 2.0% in 2008 and 9.9% vs 6.3% respectively, p<0.0001 for both comparisons). CONCLUSIONS: During a period of 20years, the characteristics and outcome of patients admitted to hospital with chest pain changed. The most important changes were a lower prevalence of ECG signs indicating acute myocardial ischemia on admission, shorter hospitalisation time and a lower 30-day and 1-year mortality.
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