Karina Jahnz-Różyk

Prof. Dr. Karina Jahnz-Różyk

orcid

Research Focus & Metrics

Academic Career Length

40Years (1987-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

View All Publications
6 April 2005 in Allergy
Verified
Journal Article
Closed access
PDF file
KJKarina Jahnz-Różyk
Karina Jahnz-Różyk
TTTomasz Targowski
Tomasz Targowski
EPE. Paluchowska
E. Paluchowska
WOW. Owczarek
W. Owczarek
AKA. Kucharczyk
A. Kucharczyk

20 November 2023 in Allergy
Verified
Journal Article
Open access
Magdalena Zemelka-WiacekMagdalena Zemelka-Wiacek
Magdalena Zemelka-Wiacek
IAIoana Agache
Ioana Agache
CACezmi A. Akdis
Cezmi A. Akdis
MAMubeccel Akdis
Mubeccel Akdis
TCThomas B Casale
Thomas B Casale
Marek JutelMarek Jutel
Marek Jutel
The importance of allergen immunotherapy (AIT) is multifaceted, encompassing both clinical and quality‐of‐life improvements and cost‐effectiveness in the long term. Key mechanisms of allergen tolerance induced by AIT include changes in memory type allergen‐specific T‐ and B‐cell responses towards a regulatory phenotype with decreased Type 2 responses, suppression of allergen‐specific IgE and increased IgG1 and IgG4, decreased mast cell and eosinophil numbers in allergic tissues and increased activation thresholds. The potential of novel patient enrolment strategies for AIT is taking into account recent advances in biomarkers discoveries, molecular allergy diagnostics and mobile health applications contributing to a personalized approach enhancement that can increase AIT efficacy and compliance. Artificial intelligence can help manage and interpret complex and heterogeneous data, including big data from omics and non‐omics research, potentially predict disease subtypes, identify biomarkers and monitor patient responses to AIT. Novel AIT preparations, such as synthetic compounds, innovative carrier systems and adjuvants, are also of great promise. Advances in clinical trial models, including adaptive, complex and hybrid designs as well as real‐world evidence, allow more flexibility and cost reduction. The analyses of AIT cost‐effectiveness show a clear long‐term advantage compared to pharmacotherapy. Important research questions, such as defining clinical endpoints, biomarkers of patient selection and efficacy, mechanisms and the modulation of the placebo effect and alternatives to conventional field trials, including allergen exposure chamber studies are still to be elucidated. This review demonstrates that AIT is still in its growth phase and shows immense development prospects.

6 August 2013 in PLOS ONE
Verified
Journal Article
Open access
PDF file
ATAles Tichopad
Ales Tichopad
CRCraig Roberts
Craig Roberts
IGIgor Gembula
Igor Gembula
PHPetr Hajek
Petr Hajek
ASAnna Skoczynska
Anna Skoczynska
VKVitězslav Kolek
Vitězslav Kolek
We estimate and describe the incidence rates, mortality, and cost of CAP (community-acquired pneumonia), in both inpatient and outpatient settings, in the Czech Republic (CZ), Slovakia (SK), Poland (PL), and Hungary (HU). A retrospective analysis was conducted on administrative data from the health ministry and insurance reimbursement claims with a primary diagnosis of pneumonia in 2009 to determine hospitalization rates, costs, and mortality in adults ≥50 years of age. Patient chart reviews were conducted to estimate the number of outpatient cases. Among all adults ≥50 years, the incidence of hospitalized CAP per 100,000 person years was: 456.6 (CZ), 504.6 (SK), 363.9 (PL), and 845.3 (HU). The average fatality rate for all adults ≥50 is 19.1%, and for each country; 21.7% (CZ), 20.9% (SK), 18.6% (PL), 17.8% (HU). Incidence, fatality, and likelihood of hospitalization increased with advancing age. Total healthcare costs of CAP in EUR was 12,579,543 (CZ); 9,160,774 (SK); 22,409,085 (PL); and 18,298,449 (HU); with hospitalization representing over 90% of the direct costs of treatment. The burden of CAP increases with advancing age in four CEE countries, with hospitalizations driving the costs of CAP upwards in the elderly population. Mortality rates are generally higher than reported in Western EU countries.

1 May 2010 in Cytokine
Verified
Journal Article
Closed access
WOWitold Owczarek
Witold Owczarek
MPMagdalena Paplińska-Goryca
Magdalena Paplińska-Goryca
TTTomasz Targowski
Tomasz Targowski
KJKarina Jahnz-Różyk
Karina Jahnz-Różyk
EPElwira Paluchowska
Elwira Paluchowska
BKBeata Kasztelewicz
Beata Kasztelewicz

28 October 2013 in Human Vaccines & Immunotherapeutics
Verified
Journal Article
Open access
GKGábor Kovács
Gábor Kovács
ZKZoltán Kaló
Zoltán Kaló
KJKarina Jahnz-Różyk
Karina Jahnz-Różyk
JKJan Kyncl
Jan Kyncl
ACAgnes Csohan
Agnes Csohan
BMBérengère Macabeo
Bérengère Macabeo
Influenza affects 5–15% of the population during an epidemic. In Western Europe, vaccination of at-risk groups forms the cornerstone of influenza prevention. However, vaccination coverage of the elderly (>65 y) is often low in Central and Eastern Europe (CEE); potentially because a paucity of country-specific data limits evidence-based policy making. Therefore the medical and economic burden of influenza were estimated in elderly populations in the Czech Republic, Hungary, Kazakhstan, Poland, Romania, and Ukraine. Data covering national influenza vaccination policies, surveillance and reporting, healthcare costs, populations, and epidemiology were obtained via literature review, open-access websites and databases, and interviews with experts. A simplified model of patient treatment flow incorporating cost, population, and incidence/prevalence data was used to calculate the influenza burden per country. In the elderly, influenza represented a large burden on the assessed healthcare systems, with yearly exc...

1 September 2020 in International Journal of General Medicine
Verified
Journal Article
Open access
PDF file
EWEwa Wiesik-Szewczyk
Ewa Wiesik-Szewczyk
AFAnna Felis-Giemza
Anna Felis-Giemza
MDMirosław Dziuk
Mirosław Dziuk
KJKarina Jahnz-Różyk
Karina Jahnz-Różyk
A 32-year-old-man, with a history of chronic urticaria from the age of 27, diagnosed with an adult-onset Still’s disease and received a low dose of glucocorticoids, methotrexate and tocilizumab. Despite the long-term combined treatments, he suffered from chronic urticaria, low-grade fever and bone pain. He was found to have high inflammatory markers, hypogammaglobulinemia, monoclonal IgM – kappa light chain in serum and increased radiotracer uptake in the whole bone scintigraphy. No pathological variants for monogenic autoinflammatory diseases were present in the genome exome sequencing. These investigations confirmed the diagnosis of Schnitzler syndrome, which is an exception before the age of 35. Switching from tocilizumab to interleukin 1 receptor inhibitor, anakinra led to a full clinical response and normalisation of inflammatory markers. Patients with a history of fever and chronic urticaria are routinely tested for monoclonal gammopathy in the context of malignancy, but it should also be considered as a sign of the autoinflammatory syndrome. The Schnitzler syndrome and the adult-onset Still’s disease share common features, so the diagnosis requires a thorough investigation to establish an optimal treatment. In the diagnostic algorithm, monoclonal gammopathy is usually considered red flag for malignancy but might be overlooked as a criterion of Schnitzler syndrome, particularly in young adults. We confirm that the interleukin 1 inhibitor should be the first line of therapy in Schnitzler syndrome, and in the presented case we found it more effective than the interleukin 6 blockade. The main goal of this paper is to increase awareness of Schnitzler syndrome among health care professionals. We aim to present features which can be helpful in differential diagnosis.