| 1. |
- Almroth, Gabriel, et al.
(författare)
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Long-term treatment results and the immunoglobulin G subclass distribution patterns of proteinase-3-antineutrophil cytoplasm antibody (ANCA) and myeloperoxidase-ANCA in ANCA-associated vasculitis
- 2009
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Ingår i: Scandinavian Journal of Urology and Nephrology. - : Informa UK Limited. - 0036-5599 .- 1651-2065. ; 43:2, s. 160-170
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Small vessel vasculitis associated with antibodies to neutrophil cytoplasm antigens has been denominated antineutrophil cytoplasm antibody (ANCA)-associated vasculitis (AAV).Material and methods: Ninety-eight patients with various forms of AAV with renal involvement were studied retrospectively with regard to treatment, side-effects and outcome. The immunoglobulin G (IgG) subclass distribution patterns in serum were determined in 51 patients with nephelometry and those of anti-proteinase-3 (PR3) and anti-myeloperoxidase (MPO) in 44 patients by enzyme-linked immunosorbent assay.Results: Fifty-nine patients with a mean age of 63 years were given treatment with intermittent intravenous regimens of cyclophosphamide and continuous corticosteroids, whereas 39 patients with a mean age of 58 years were given continuous oral treatment. Malignancy, mainly due to skin tumours, was more common in AAV than in the general population. The total IgG subclass distribution pattern was asymmetric. The response to PR3 was of IgG1, IgG3 and IgG4 isotypes, while IgG1 and IgG3 predominated in the response to MPO.Conclusion: The aberrant IgG subclass distribution pattern detected in the autoantibodies may be of importance in the pathogenesis of AAV.
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| 2. |
- Backteman, K, et al.
(författare)
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A rapid and reliable flow cytometric routine method for counting leucocytes in leucocyte-depleted platelet concentrates
- 2002
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Ingår i: Vox Sanguinis. - : Wiley. - 0042-9007 .- 1423-0410. ; 83:1, s. 29-34
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Tidskriftsartikel (refereegranskat)abstract
- Background and Objectives: To ensure a proper quality control it is important to use a reliable method to count low numbers of leucocytes in leucocyte-reduced platelet concentrates (PCs). Materials and Methods: A modified flow cytometric method for counting low numbers of leucocytes, based on a reference population contained in tubes with an exact number of fluorescent beads and staining with propidium iodide was used. To increase the number of events, the original sample volume was increased. Results: There was a good correlation in the number of leucocytes (r = 0.99) between the modified flow cytometric method and microscopy of samples from unfiltered and expected numbers from serially diluted PCs. Samples from leucocyte-reduced PCs obtained by apheresis or filtered buffy coats showed no correlation between results from the modified flow cytometric method and microscopy (Nageotte). Conclusion: Counting by microscopy gave a lower number of leucocytes than the modified flow cytometric method when counting a low number of cells. However, analysis of the serially diluted PCs proved that the modified flow cytometric method was reliable and rapid, making it suitable for clinical routine use.
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| 3. |
- Berlin, Gösta, et al.
(författare)
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Effects of age, gender and menstrual cycle on platelet function assessed by impedance aggregometry
- 2019
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Ingår i: Platelets. - : TAYLOR & FRANCIS INC. - 0953-7104 .- 1369-1635. ; 30:4, s. 473-479
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Tidskriftsartikel (refereegranskat)abstract
- Platelets are needed to prevent or arrest bleeding and aggregate at the site of injury upon vascular damage. Platelets express receptors for estrogens which might affect the function of the platelets and their hemostatic ability. The aim was to identify possible differences in platelet function related to age, gender, and phases of the menstrual cycle by use of impedance aggregometry with Multiplate. In the first part of the study, platelet function was assessed in 60 healthy individuals (30 men and 30 women) in each of three age groups (20-25, 40-45, and 60-65 years). In the second part of the study, the platelet function was analyzed on four occasions during the menstrual cycle in women without oral contraceptives (OCs) (n = 17) and compared to 19 women on OCs and 18 men of similar age (20-40 years). For the women on OCs, aggregation was analyzed once during the tablet-free week and once late during the period with OCs. The men were sampled once. Women of younger age (amp;lt;45 years) had significantly higher agonist-induced aggregation response than both men and post-menopausal women (60-65 years). The agonist-induced aggregation response did not differ between phases of the menstrual cycle or OC use. The results suggest that estradiol and/or progesterone affect spontaneous aggregation since it was found to be lowest in the mid-luteal phase. Spontaneous aggregation was significantly lower in women on OCs than in both men and women without OCs. Our findings indicate that fertile age is associated with higher aggregation response capacity of the platelets, possibly to prevent excessive bleeding during menstruation, but this response capacity is not altered during the menstrual cycle or by use of OCs.
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| 4. |
- Berlin, Gösta, 1944-, et al.
(författare)
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Granulocyttransfusion bör övervägas vid neutropeni och allvarlig infektion [Granulocyte transfusion – when and how should it be used?]
- 2018
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Ingår i: Läkartidningen. - Stockholm, Sweden : Läkartidningen Förlag. - 0023-7205 .- 1652-7518. ; 115
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Forskningsöversikt (refereegranskat)abstract
- There are no randomized controlled trials proving the clinical benefit of granulocyte transfusions. However, clinical experience and a number of case studies suggest that granulocyte transfusions may be life-saving in certain situations. In our opinion granulocyte transfusions should be considered for patients with profound neutropenia and severe, life-threatening infection not responding to antibiotic or antifungal therapy. Since the clinical effect seems to be dose-dependent, the granulocyte concentrate should contain a large number of cells, which usually means that the donor should be mobilized with steroids and G-CSF. Regular blood donors as well as relatives to the patient can be used for granulocyte donations with apheresis technique after information of the process. Granulocyte transfusion should be given daily as long as the indication remains. The clinical efficacy of the transfusions should be evaluated daily.
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| 5. |
- Berlin, Gösta, 1944-, et al.
(författare)
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Low-O2 affinity erythrocytes improve performance of ischemic myocardium
- 2002
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Ingår i: Journal of applied physiology. - : American Physiological Society. - 8750-7587 .- 1522-1601. ; 92:3, s. 1267-1276
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Tidskriftsartikel (refereegranskat)abstract
- O2 transport and O2 diffusion interact in providing O2 to tissue, but the extent to which diffusion may be critical in the heart is unclear. If O2 diffusion limits mitochondrial oxygenation, a change in blood O2 affinity at constant total O2 transport should alter cardiac O2 consumption (VO2) and function. To test this hypothesis, we perfused isolated isovolumically working rabbit hearts with erythrocytes at physiological blood-gas values and P50 (PO2 required to half-saturate hemoglobin) values at Ph of 7.4 of 17 ▒ 1 Torr (2,3-bisphosphoglycerate depletion) and 33 ▒ 5 Torr (inositol hexaphosphate incorporation). When perfused at 40 and 20% of normal coronary flow, mean VO2 decreased from the control value by 37 and 46% (P < 0.001), and function, expressed as cardiac work, decreased by 38 and 52%, respectively (P < 0.001). Perfusion at higher P50 during low-flow ischemia improved VO2 by 20% (P < 0.001) and function by 36% (P < 0.02). There was also modest improvement at basal flow (P < 0.02 and P < 0.002, respectively). The improvement in VO2 and function due to the P50 increase demonstrates the importance of O2 diffusion in this cardiac ischemia model.
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| 6. |
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| 7. |
- Berlin, Gösta, et al.
(författare)
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Östergötland satsar på klinisk forskning
- 2011
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Ingår i: Läkartidningen. - Stockhom : Läkartidningen Förlag AB. - 0023-7205 .- 1652-7518. ; 108:3, s. 81-84
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Tidskriftsartikel (övrigt vetenskapligt/konstnärligt)abstract
- Flera rapporter har visat att svensk klinisk forskning under senare år har tappat mark i förhållande till omvärlden.Inom Östergötland har landstinget och den medicinska fakulteten vid Linköpings universitet (Hälsouniversitet) tagit gemensamma initiativ för att ge bättre förutsättningar för klinisk forskning kombinerat med sjukvårdsarbete. Åtgärdsplanen »FoU i befattningsutvecklingen« slår fast sjukvårdens uppdrag och roll inom klinisk forskning. Årliga FoU-bokslut görs för sjukvårdsenheterna. Projektet »Från student till docent« syftar till att rekrytera studenter från de olika utbildningarna i vård och medicin till forskning redan under studietiden och därefter ge möjligheter att bedriva forskarutbildning och fortsatt forskning kombinerat med klinisk karriär. Tidsbegränsade forskningsbefattningar inom sjukvården har inrättats för medarbetare med legitimationsyrken. Infrastrukturen kring klinisk forskning med olika typer av kompetensstöd för den enskilda forskaren har stärkts.
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| 8. |
- Berlin, Johan, 1975, et al.
(författare)
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Etnografiska observationer
- 2009
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Ingår i: Kommunal Ekonomi och Politik. - Lund : Studentlitteratur. - 1402-8700. ; 13:4, s. 65-68
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Recension (övrigt vetenskapligt/konstnärligt)
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| 9. |
- Blaha, M., et al.
(författare)
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Analysis of extracorporeal photopheresis within the frame of the WAA register
- 2021
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Ingår i: Transfusion and apheresis science. - : Elsevier. - 1473-0502 .- 1878-1683. ; 60:5
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Tidskriftsartikel (refereegranskat)abstract
- The aim of the study was to investigate safety and if extracorporeal photopheresis (ECP) may change health criteria (HC) and quality of life (QoL).Material and method: 560 patients (33 % women) were treated with ECP for a total of 13,871 procedures during a 17-years period. Mean age was 48 years (±18, range 3−81 years). Self-estimation of QoL was graded: 0 (suicidal) up to 10 (best ever) and HC: 0 (Bed ridden, ICU condition) up to 10 (athletic). Adverse events were analyzed. ANOVA and paired comparisons were performed.Results: Patients were treated due to graft versus host disease (GVHD, n = 317), skin lymphoma (n = 70), solid organ transplants (n = 47), skin diseases (n = 20) and other diseases (n = 106). Adverse events (AEs) were registered in 5.4 % of the first treatments and in 1.2 % of the subsequent procedures. Severe AEs were present in 0.04 % of all procedures. No patient died due to the procedure. Tingling and stitching were the most common AE. For those with GVHD an improvement was noticed within approximately 10 procedures of ECP in the severity stage, QoL (from a mean of 6.1 to 6.8, p < 0.002) and the HC (6.1 -> 6.4, p < 0.014) and improved further with added procedures.Conclusion: Photopheresis is an established therapy with few side effects. The present study of soft variables indicate that GVHD shows benefits upon ECP within approximately 10 procedures in regard to the severity of mainly skin GVHD, and lower baseline levels of HC and QoL.
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| 10. |
- Ernerudh, Jan, 1952-, et al.
(författare)
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Effect of photopheresis on lymphocyte population in children with newly diagnosed type 1 diabetes
- 2004
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Ingår i: Clinical and Diagnostic Laboratory Immunology. - 1071-412X. ; 11:5, s. 856-861
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Tidskriftsartikel (refereegranskat)abstract
- In recent years photopheresis has been claimed to be an effective form of immunomodulation. It has also been shown to have an effect on the disease process at the onset of type 1 diabetes. In a double-blind, placebo-controlled randomized study, we analyzed if the effect of photopheresis in children with newly diagnosed diabetes is related to changes in the balance of lymhocyte populations. We also analyzed if lymphocyte subsets were related to recent infection, mild or aggressive disease manifestations, heredity, or gender. Nineteen children received active treatment with photopheresis, while 21 children received sham pheresis (placebo group). No influence of a history of previous infection, heredity, or certain clinical parameters on lymphocyte subsets was found. At the onset of type 1 diabetes, girls showed a higher proportion and a larger number of T cells (CD3+) and T-helper cells (CD4+) and a higher proportion of naïve CD4 +CD45RA+ cells. In the placebo group, an increase in the number of subsets with the activated phenotype in both the CD4 (CD29 +) and the CD8 (CD11a+) compartments was noted during the course of the study. These changes did not occur in the photopheresis group. No relation between lymphocyte subsets and clinical outcome was found 1 year after the treatment with photopheresis. In conclusion, we found no major effect of photopheresis on lymphocyte populations in a group of children with newly diagnosed type 1 diabetes. However, in the placebo group the proportions of activated CD4 and CD8 cells increased over time. Since these changes did not occur in the actively treated group, our findings suggest that photopheresis may have some suppressive effects.
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