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Sökning: WFRF:(Ahlbeck Lars 1964 )

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1.
  • Senti, Gabriela, et al. (författare)
  • Intralymphatic Immunotherapy : Update and Unmet Needs.
  • 2019
  • Ingår i: International Archives of Allergy and Immunology. - : S. Karger. - 1018-2438 .- 1423-0097. ; 178:2, s. 141-149
  • Forskningsöversikt (refereegranskat)abstract
    • Allergen-specific immunotherapy (AIT) is the only allergy treatment that confers long-term symptom amelioration for patients suffering from allergy. The most frequently used allergen application route is subcutaneous injection (SCIT), commonly taken as the gold standard, followed by sublingual (SLIT) or oral (OIT) application of allergen preparations. This is an up-to-date review of the clinical evidence for a novel route of allergen application, i.e., directly into lymph nodes - intralymphatic immunotherapy (ILIT). The major advantages of ILIT over the current AIT approaches are its short duration and the low allergen doses administered. The whole treatment consists of merely 3 ultrasound-guided injections into inguinal lymph nodes 1 month apart. While the number of patients included in randomised controlled trials is still limited, the clinical results for ILIT are encouraging, but more clinical trials are needed, as well as more preclinical work for optimising formulations.
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2.
  • Ahlbeck, Lars, 1964- (författare)
  • Astma lathund : Astma hos vuxna
  • 2018
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • Åtta till tio procent av den vuxna befolkningen har astma. Av dessa har 65 procent lindrig, 25 procent medelsvår och 10 procent svår astma. Astma är en heterogen sjukdom, där en kronisk luftvägsinflammation oftast föreligger.Sjukdomen kännetecknas av återkommande luftvägssymtom såsom pip i bröstet, andnöd, trånghetskänsla i bröstet och hosta som varierar över tiden tillsammans med en variabel luftvägsobstruktion.
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3.
  • Ahlbeck, Lars, 1964-, et al. (författare)
  • Astma lathund : Astma hos barn
  • 2019
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • Eftersom få läkemedelsstudier utförs på barn är många av dagens läkemedel som ges till barn ofullständigt dokumenterade vad gäller dosering, effekt och säkerhet. Barn får många läkemedel utanför godkänd produktresumé (off-label), som licensläkemedel eller som apoteksberett läkemedel. I brist på vetenskaplig dokumentation har barnläkarna tvingats att utveckla egna behandlingsrekommendationer som vilar på beprövad erfarenhet. Det gör att det kan föreligga skillnader mellan riktlinjer både på lokal och på nationell nivå. Vidare är diagnostiken svårare eftersom lungfunktionstester inte är möjligt på små- och förskolebarn. Våra rekommendationer vilar på referenserna sist i denna lathund.
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5.
  • Ahlbeck, Lars, 1964-, et al. (författare)
  • Differences in patient perception of appropriate level of care
  • 1996
  • Ingår i: European Journal of General Practice. - : Taylor & Francis. - 1381-4788 .- 1751-1402. ; 2:3, s. 109-112
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives: The principle of achieving the most cost-effective level of care in relation to needs is an essential aim for all health care systems. However, it is not certain that the corresponding knowledge and attitudes with respect to the appropriate level of care for different symptoms can be found in the general population. There may be age-related differences in illness behaviour that manifest in ‘overutilisation’ of the system. We studied illness behaviour with regard to attitudes and inclination to seek care for different symptoms at various levels in the health care system.Methods: The study group consisted of a random selection of 296 persons, born in the 1940s, ′50s and ′60s, and living in a defined region in Sweden. In a questionnaire they had to choose between different levels of care for twelve symptom descriptions with varying degrees of severity. The answers were scored according to the level of care, adequacy and overutilisation.Results: The vast majority of participants chose an adequate level of care. However, overutilisation was found, particularly among women born in the 1960s and to some extent among men born in the 1940s. These two groups together constituted about 70% of all the individuals who tended to overutilise the health care in their expressed preferences.Conclusions: These individuals do not receive cost-effective care, or the most adequate care with regard to their needs. The results indicate, however, that the problem was more a question of attitude rather than a lack of knowledge and information.
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6.
  • Ahlbeck, Lars, 1964-, et al. (författare)
  • Intralymphatic allergen immunotherapy against pollen allergy. A 3-year open follow-up study of 10 patients
  • 2018
  • Ingår i: Annals of Allergy, Asthma & Immunology. - : Elsevier. - 1081-1206 .- 1534-4436. ; 121:5, s. 626-627
  • Tidskriftsartikel (refereegranskat)abstract
    • To date, allergen immunotherapy (AIT) is the only treatment that affects the long-term development of allergic rhinoconjunctivitis and induces clinical tolerance primarily by stimulating regulatory T (Treg) cells, attenuating T helper 2 (Th2) responses and synthesis of blocking antibodies1. Conventional AIT with subcutaneous injections, sublingual tablets or drops is effective, but consumes time and resources 2.
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7.
  • Ahlbeck, Lars, 1964- (författare)
  • Intralymphatic Immunotherapy : A Novel Route to Ameliorate Allergic Rhinitis Due to Pollen
  • 2024
  • Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
    • Allergy to pollen and animal dander is a major public health problem. Close to 30% of the population have symptoms from the upper and/or lower respiratory tract when they meet fur animals or pollen. Whereas symptom-relieving medications have a good to sufficient effect on about 80% of those affected, a large group of 10–20% have severe symptoms, despite medication, with an impact on well-being and ability to work. In Sweden, the annual cost of allergy was calculated at €1.3 billion in 2014.Immunotherapy is effective in treating and preventing pollen allergy and allergic asthma, but is expensive, complicated, requiring 40 injections, and takes more than three years to complete if subcutaneous injections are used. Tablets placed under the tongue are another method, with one tablet taken every day for three years. Only 1.5‰ receive such treatment, yet just over 3% would need it.With intralymphatic immunotherapy, a small dose of allergen is given in a lymph node in the groin on 3 occasions, one month apart. As this method takes only eight weeks, it is a much faster and less costly treatment. However, although several studies have shown that the treatment is safe, its efficacy remains the subject of doubt.Our pilot study in 2012, with a 3-year follow-up to 2015, showed encouraging results, and was followed by a double-blind randomised study with 72 participants from 2014 to 2018. The research subjects then received treatment with birch and grass pollen extract or one extract and a placebo. Regardless of treatment, symptoms, quality of life and medication consumption improved during the birch and grass pollen seasons in the 3 years after treatment. Increased frequencies of T-regulatory lymphocytes may explain the non-specific effects.In 2017 to 2018, we conducted a double-blind study with 38 participants, half of whom received placebo and half, active treatment. In this study, we saw no difference between the treatment groups in the first year after treatment. However, after discontinuation and unblinding in 2019, i.e., two years after treatment, the actively treated group improved in terms of symptoms, and quality of life was improved compared with the placebo group despite less need for medication. T-regulatory lymphocytes increased one year after treatment only in the actively treated group.A long-term follow-up of the research subjects from our two larger studies in 2022, i.e., five to eight years after treatment, showed in the double-blind study without a pure placebo that the scores for symptoms, medication use, and quality of life remained as low as after the first three years. In the placebo-controlled study, a statistically significant improvement in symptoms remained during the grass pollen season. Analysing the two studies together, symptom improvement was significant even during the birch pollen season. Thus, although the effect does not seem to diminish, those who did not receive birch, but only grass, needed to use more medication during the birch pollen season in 2022, seven to eight years after treatment. Moreover, those who did not receive grass but only birch needed more medication during the grass pollen season. This may suggest that the non-specific effect begins to wane after seven to eight years.Allergy to pollen is a major problem for individuals and society, where symptom-relieving treatment with drugs is not enough for many. They can be helped with immunotherapy, which takes at least three years, is expensive and fraught with side effects. In contrast, intralymphatic immunotherapy involves three injections over eight weeks. Our three studies show that the treatment is safe and indicate that it has a clinical effect up to eight years after treatment. T-regulatory cells appear to be important to the immunological mechanism, leading to tolerance to pollen.
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8.
  • Ahlbeck, Lars, 1964-, et al. (författare)
  • Intralymphatic immunotherapy with one or two allergens renders similar clinical response in patients with allergic rhinitis due to birch and grass pollen
  • 2022
  • Ingår i: Clinical and Experimental Allergy. - Chichester, United Kingdom : Wiley-Blackwell Publishing Inc.. - 0954-7894 .- 1365-2222. ; 52:6, s. 747-759
  • Tidskriftsartikel (refereegranskat)abstract
    • IntroductionThere is a need for a fast, efficient and safe way to induce tolerance in patients with severe allergic rhinitis. Intralymphatic immune therapy has been shown to be effective. MethodsPatients with severe birch and timothy allergy were randomized and received three doses of 0.1 ml of birch and 5-grass allergen extracts (10,000 SQ units/ml, ALK-Abello), or birch and placebo or 5-grass and placebo by ultrasound-guided injections into inguinal lymph nodes at monthly intervals. Rhinoconjunctivitis total symptom score, medication score and rhinoconjunctivitis quality of life questionnaire were evaluated before treatment and after each birch and grass pollen season during three subsequent years. Circulating proportions of T helper subsets and allergen-induced cytokine and chemokine production were analysed by flow cytometry and Luminex.Results The three groups reported fewer symptoms, lower use of medication and improved quality of life during the birch and grass pollen seasons each year after treatment at an almost similar rate independently of treatment with one or two allergens. Mild local pain was the most common adverse event. IgE levels to birch decreased, whereas birch-induced IL-10 secretion increased in all three groups. IgG4 levels to birch and timothy and skin prick test reactivity remained mainly unchanged. Conjunctival challenge tests with timothy extract showed a higher threshold for allergen. In all three groups, regulatory T cell frequencies were increased 3 years after treatment.Conclusions Intralymphatic immunotherapy with one or two allergens in patients with grass and birch pollen allergy was safe, effective and may be associated with bystander immune modulatory responses.
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9.
  • Nyström Kronander, Ulla, 1957-, et al. (författare)
  • Atopi, allergi och överkänslighet
  • 2018
  • Ingår i: Läkemedelsboken. - : Läkemedelsverket.
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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10.
  • Nyström, Ulla, 1957-, et al. (författare)
  • Allergi och annan överkänslighet
  • 2018. - 6
  • Ingår i: Internmedicin. - Stockholm : Liber. - 9789147113262 ; , s. 31-58
  • Bokkapitel (övrigt vetenskapligt/konstnärligt)
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