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Sökning: WFRF:(Svensson Johan) > Göteborgs universitet

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1.
  • Jansson, Anton, 1983, et al. (författare)
  • Humaniora i välfärdssamhället : En inledning
  • 2023
  • Ingår i: Humaniora i välfärdssamhället : Kunskapshistorier om efterkrigstiden - Kunskapshistorier om efterkrigstiden. - Göteborg : Makadam. - 2002-2131. - 9789170614019 - 9789170619014 ; 49, s. 9-29
  • Bokkapitel (refereegranskat)
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2.
  • Almqvist, Erik, et al. (författare)
  • Increased plasma concentrations of N-terminal pro-B-type natriuretic peptide in patients with mild primary hyperparathyroidism.
  • 2006
  • Ingår i: Clinical endocrinology. - : Wiley. - 0300-0664 .- 1365-2265. ; 65:6, s. 760-6
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: Primary hyperparathyroidism (PHPT) is associated with heart disease. The aims of the present study were to evaluate how cardiac function and secretion of N-terminal pro-B-type natriuretic peptide (NT-proBNP) correlate in patients with mild PHPT, and how the plasma level of NT-proBNP is influenced by cure of the parathyroid disease. DESIGN AND PATIENTS: Forty-two patients with PHPT without symptoms of heart disease were examined before and 1 year after curative parathyroidectomy. MEASUREMENTS: Plasma or serum concentrations of NT-proBNP, calcium, PTH, creatinine, oestradiol, testosterone and SHBG were measured. Cardiac function was evaluated by equilibrium radionuclide angiography (ERNA). RESULTS: At baseline, NT-proBNP levels correlated negatively with systolic function [left ventricular ejection fraction (LVEF), P < 0.001]. Twelve per cent of the patients had NT-proBNP levels above normal reference values preoperatively. One year postoperatively, the corresponding proportion was 21%. The mean plasma concentration of NT-proBNP increased after parathyroidectomy (P < 0.01) in parallel with a dip in diastolic function (peak filling rate, P < 0.05) and a falling trend in systolic function (LVEF, P = 0.08). The postoperative percentage changes in circulating NT-proBNP and total oestradiol correlated positively (P < 0.05). CONCLUSIONS: Patients with mild PHPT and normal renal function may have high levels of circulating NT-proBNP despite the absence of symptomatic heart disease. Cure of the parathyroid disease is followed by a further increase in NT-proBNP secretion in parallel with ERNA measures, indicating subclinical changes in heart function. These results are in line with data indicating an association between PHPT and increased risk of premature death.
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3.
  • Axelsson, Christer, 1955, et al. (författare)
  • Clinical consequences of the introduction of mechanical chest compression in the EMS-system for treatment of hospital cardiac arrest. A pilot study.
  • 2006
  • Ingår i: Resuscitation. - 0300-9572. ; :71, s. 47-55
  • Tidskriftsartikel (refereegranskat)abstract
    • Gothenburg EMS-system, GoteborgAIM: To evaluate the outcome among patients suffering from out-of-hospital cardiac arrest (OHCA) after the introduction of mechanical chest compression (MCC) compared with standard cardiopulmonary resuscitation (SCPR) in two emergency medical service (EMS) systems. METHODS: The inclusion criterion was witnessed OHCA. The exclusion criteria were age < 18 years, the following judged etiologies behind OHCA: trauma, pregnancy, hypothermia, intoxication, hanging and drowning or return of spontaneous circulation (ROSC) prior to the arrival of the advanced life support (ALS) unit. Two MCC devices were allocated during six-month periods between four ALS units for a period of two years (cluster randomisation). RESULTS: In all, 328 patients fulfilled the criteria for participation and 159 were allocated to the MCC tier (the device was used in 66% of cases) and 169 to the SCPR tier. In the MCC tier, 51% had ROSC (primary end-point) versus 51% in the SCPR tier. The corresponding values for hospital admission alive (secondary end-point) were 38% and 37% (NS). In the subset of patients in whom the device was used, the percentage who had ROSC was 49% versus 50% in a control group matched for age, initial rhythm, aetiology, bystander-/crew-witnessed status and delay to CPR. The percentage of patients discharged alive from hospital after OHCA was 8% versus 10% (NS) for all patients and 2% versus 4%, respectively (NS) for the patients in the subset (where the device was used and the matched control population). CONCLUSION: In this pilot study, the results did not support the hypothesis that the introduction of mechanical chest compression in OHCA improves outcome. However, there is room for further improvement in the use of the device. The hypothesis that this will improve outcome needs to be tested in further prospective trials.
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4.
  • Claesson, Andreas, et al. (författare)
  • Characteristics and outcome among patients suffering out-of-hospital cardiac arrest due to drowning.
  • 2008
  • Ingår i: Resuscitation. - : Elsevier BV. - 0300-9572 .- 1873-1570. ; 76:3, s. 381-7
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To describe the characteristics and outcome among patients with out-of-hospital cardiac arrest (OHCA) caused by drowning as compared with OHCA caused by a cardiac etiology (outside home). PATIENTS AND METHODS: All the patients included in the Swedish OHCA Registry between 1990 and 2005 which were not crew witnessed, in whom cardio-pulmonary resuscitation (CPR) was attempted, were evaluated for inclusion. Those caused by drowning were compared with those with a cardiac etiology (outside home). RESULTS: Patients with OHCA due to drowning (n=255) differed from patients with OHCA with a cardiac etiology (n=7494) as they were younger, less frequently suffered a witnessed OHCA, more frequently received bystander CPR and less frequently were found in a shockable rhythm. Patients with OHCA due to drowning had a prolonged ambulance response time as compared with patients with OHCA with a cardiac etiology. Patients with OHCA due to drowning had a survival rate to 1 month of 11.5% as compared with 8.8% among patients with OHCA due to a cardiac etiology (NS). Among patients with OHCA due to drowning, only one independent predictor of survival was defined, i.e. time from calling for an ambulance until the arrival of the rescue team, with a much higher survival among patients with a shorter ambulance response time. CONCLUSION: Among patients with OHCA 0.9% were caused by drowning. They had a similar survival rate to 1 month as compared with OHCA outside home with a cardiac etiology. The factor associated with survival was the ambulance response time; a higher survival with a shorter response time.
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5.
  • de Peppo, Giuseppe Maria, 1981, et al. (författare)
  • Human embryonic mesodermal progenitors highly resemble human mesenchymal stem cells and display high potential for tissue engineering applications.
  • 2010
  • Ingår i: Tissue engineering. Part A. - : Mary Ann Liebert Inc. - 1937-335X .- 1937-3341. ; 16:7, s. 2161-82
  • Tidskriftsartikel (refereegranskat)abstract
    • Adult stem cells, such as human mesenchymal stem cells (hMSCs), show limited proliferative capacity and, after long-term culture, lose their differentiation capacity and are therefore not an optimal cell source for tissue engineering. Human embryonic stem cells (hESCs) constitute an important new resource in this field, but one major drawback is the risk of tumor formation in the recipients. One alternative is to use progenitor cells derived from hESCs that are more lineage restricted but do not form teratomas. We have recently derived a cell line from hESCs denoted hESC-derived mesodermal progenitors (hES-MPs), and here, using genome-wide microarray analysis, we report that the process of hES-MPs derivation results in a significantly altered expression of hESC characteristic genes to an expression level highly similar to that of hMSCs. However, hES-MPs displayed a significantly higher proliferative capacity and longer telomeres. The hES-MPs also displayed lower expression of HLA class II proteins before and after interferon-gamma treatment, indicating that these cells may somewhat be immunoprivileged and potentially used for HLA-incompatible transplantation. The hES-MPs are thus an appealing alternative to hMSCs in tissue engineering applications and stem-cell-based therapies for mesodermal tissues.
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6.
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7.
  • Flach, Carl-Fredrik, 1977, et al. (författare)
  • Does antifouling paint select for antibiotic resistance?
  • 2017
  • Ingår i: Science of the Total Environment. - : Elsevier BV. - 0048-9697 .- 1879-1026. ; 590, s. 461-468
  • Tidskriftsartikel (refereegranskat)abstract
    • There is concern that heavy metals and biocides contribute to the development of antibiotic resistance via co-selection. Most antifouling paints contain high amounts of such substances, which risks turning painted ship hulls into highly mobile refuges and breeding grounds for antibiotic-resistant bacteria. The objectives of this study were to start investigate if heavy-metal based antifouling paints can pose a risk for co-selection of antibiotic-resistant bacteria and, if so, identify the underlying genetic basis. Plastic panels with one side painted with copper and zinc-containing antifouling paint were submerged in a Swedish marina and biofilms from both sides of the panels were harvested after 2.5-4 weeks. DNA was isolated from the biofilms and subjected to metagenomic sequencing. Biofilm bacteria were cultured on marine agar supplemented with tetracycline, gentamicin, copper sulfate or zinc sulfate. Biofilm communities from painted surfaces displayed lower taxonomic diversity and enrichment of Gammaproteobacteria. Bacteria from these communities showed increased resistance to both heavy metals and tetracycline but not to gentamicin. Significantly higher abundance of metal and biocide resistance genes was observed, whereas mobile antibiotic resistance genes were not enriched in these communities. In contrast, we found an enrichment of chromosomal RND efflux system genes, including such with documented ability to confer decreased susceptibility to both antibiotics and biocides/heavy metals. This was paralleled by increased abundances of integron-associated integrase and ISCR transposase genes. The results show that the heavy metal-based antifouling paint exerts a strong selection pressure on marine bacterial communities and can co-select for certain antibiotic-resistant bacteria, likely by favoring species and strains carrying genes that provide cross-resistance. Although this does not indicate an immediate risk for promotion of mobile antibiotic resistance, the clear increase of genes involved in mobilizing DNA provides a foundation for increased opportunities for gene transfer in such communities, which might also involve yet unknown resistance mechanisms.
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8.
  • Herlitz, Johan, 1949, et al. (författare)
  • Association between interval between call for ambulance and return of spontaneous circulation and survival in out-of-hospital cardiac arrest
  • 2006
  • Ingår i: Resuscitation. - : Elsevier BV. - 0300-9572 .- 1873-1570. ; 71:1, s. 40-6
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To describe the association between the interval between the call for ambulance and return of spontaneous circulation (ROSC) and survival in out-of-hospital cardiac arrest. PATIENTS: All patients suffering an out-of-hospital cardiac arrest in whom cardiopulmonary resuscitation (CPR) was started, included in the Swedish Cardiac Arrest Registry (SCAR) for whom information about the time of calling for an ambulance and the time of ROSC was available. RESULTS: Among 26,192 patients who were included in SCAR and were not witnessed by the ambulance crew, information about the time of call for an ambulance and the time of ROSC was available in 4847 patients (19%). There was a very strong relationship between the interval between call for an ambulance and ROSC and survival to one month. If the interval was less than or equal to 5 min, 47% survived to one month. If the interval exceeded 30 min, only 5% (n = 35) survived to one month. The vast majority of the latter survivors had a shockable rhythm either on admission of the rescue team or at some time during resuscitation. CONCLUSION: Among patients who have ROSC after an out-of-hospital cardiac arrest, there is a very strong association between the interval between the call for ambulance and ROSC and survival to one month. However, even if this delay is very long (> 30 min after calling for an ambulance), a small percentage will ultimately survive; they are mainly patients who at some time during resuscitation have a shockable rhythm. The overall percentage of patients for whom CPR continued for more than 30 min who are alive one month later can be assumed to be extremely low.
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9.
  • Herlitz, Johan, 1949, et al. (författare)
  • Can we define patients with no chance of survival after out-of-hospital cardiac arrest?
  • 2004
  • Ingår i: Heart. - : BMJ. - 1468-201X .- 1355-6037. ; 90:10, s. 1114-8
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To evaluate whether subgroups of patients with no chance of survival can be defined among patients with out-of-hospital cardiac arrest. PATIENTS: Patients in the Swedish cardiac arrest registry who fulfilled the following criteria were surveyed: cardiopulmonary resuscitation (CPR) was attempted; the arrest was not crew witnessed; and patients were found in a non-shockable rhythm. SETTING: Various ambulance organisations in Sweden. DESIGN: Prospective observational study. RESULTS: Among the 16,712 patients who fulfilled the inclusion criteria, the following factors were independently associated with a lower chance of survival one month after cardiac arrest: no bystander CPR; non-witnessed cardiac arrest; cardiac arrest occurring at home; increasing interval between call for and arrival of the ambulance; and increasing age. When these factors were considered simultaneously two groups with no survivors were defined. In both groups patients were found in a non-shockable rhythm, no bystander CPR was attempted, the arrest was non-witnessed, the arrest took place at home. In one group the interval between call for and arrival of ambulance exceeded 12 minutes. In the other group patients were older than 80 years and the interval between call for and arrival of the ambulance exceeded eight minutes. CONCLUSION: Among patients who had an out-of-hospital cardiac arrest and were found in a non-shockable rhythm the following factors were associated with a low chance of survival: no bystander CPR, non-witnessed cardiac arrest, the arrest took place at home, increasing interval between call for and arrival of ambulance, and increasing age. When these factors were considered simultaneously, groups with no survivors could be defined. In such groups the ambulance crew may refrain from starting CPR.
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10.
  • Herlitz, Johan, 1949, et al. (författare)
  • Changes in demographic factors and mortality after out-of-hospital cardiac arrest in Sweden
  • 2005
  • Ingår i: Coron Artery Dis. - : Ovid Technologies (Wolters Kluwer Health). - 0954-6928 .- 1473-5830. ; 16:1, s. 51-7
  • Tidskriftsartikel (refereegranskat)abstract
    • OBJECTIVE: To describe changes between 1992 and 2003 in age, sex, factors at resuscitation and survival among patients suffering from out-of-hospital cardiac arrest in Sweden. METHODS: This was a prospective observational study including various ambulance organizations in Sweden. Patients suffering from out-of-hospital cardiac arrest between 1992 and 2003 included in the Swedish Cardiac Arrest Registry were followed for survival to 1 month. RESULTS: In all 19 791 cases took part in the survey. There was a slight increase in mean age from 68 to 70 years (P = 0.025) and an increase of females from 29 to 32% (P = 0.0001). There was a change in witnessed status (P < 0.0001) with an increase in crew-witnessed cases and a decrease in non-witnessed cases. There was a decrease in cases of a cardiac etiology from 75 to 61% (P < 0.0001) and a decrease in the percentage found in ventricular fibrillation from 36 to 25% (P < 0.0001). When crew-witnessed cases were excluded the proportion receiving bystander cardiopulmonary resuscitation (CPR) increased from 30 to 42% (P < 0.0001). There was a slight increase in the overall proportion of patients hospitalized alive from 16 to 20% (P = 0.032). There was no significant change in the overall proportion of survivors at 1 month after cardiac arrest (4.5% in 1992 and 5.0% in 2003). CONCLUSIONS: Among patients suffering from out-of-hospital cardiac arrest in Sweden some changes took place. The most important ones were a decrease in the proportion of patients found in ventricular fibrillation and an increase in the proportion of patients receiving bystander CPR. The proportion of patients admitted alive to hospital increased moderately, whereas the proportion of patients alive after 1 month remained unchanged.
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