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    Tytuł:
    Assessment of selected B cells populations in the workers of X-ray departments
    Autorzy:
    Kłuciński, Piotr
    Mazur, Bogdan
    Sędek, Łukasz
    Aptekorz, Małgorzata
    Cieślik, Paweł
    Hrycek, Antoni
    Martirosian, Gayane
    Powiązania:
    https://bibliotekanauki.pl/articles/2178855.pdf
    Data publikacji:
    2014-06-21
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    x-rays exposure
    B cells
    humoral immunity
    Opis:
    Objectives: Workers of X-ray departments are occupationally exposed to long-term low levels of ionizing radiation (LLIR), which may affect their humoral immunity. The aim of the study was to assess the influence of LLIR on the number and proportion of B cells (CD19+), B1 cells (CD5+CD19+) and memory B cells (CD27+CD19+) in peripheral blood of such workers. Materials and Methods: In the study group of 47 X-ray departments workers and the control group consisting of 38 persons, the number and percentage of CD19+, CD5+CD19+, CD27+CD19+ cells as well as CD5+CD19+/CD19+ and CD27+CD19+/CD19+ cell ratios were assessed using flow cytometry. Additionally, the study group was divided into 2 groups by the length of employment below and over 15 years and analysis adjusted for age and smoking habit was performed. Results: The total number of CD19+ cells showed significant increase in the group of workers in comparison with the persons from the control group, whereas the percentage of CD5+CD19+ cells as well as CD27+CD19+/CD19+ and CD5+CD19+/CD19+ cell ratios were lower. Percentage, number of CD5+CD19+ cells and CD5+CD19+/CD19+ cell ratio were significantly lower in the workers with length of employment longer than 15 years in comparison with those employed below 15 years. Moreover, we found positive associations between the number of CD19+ cells and employment as well as smoking habit, whereas the number of CD5+CD19+ cells was positively associated with cigarette smoking alone. Percentage of CD5+CD19+ cells as well as CD5+CD19+/CD19+ and CD27+CD19+/CD19+ cell ratios were negatively correlated with employment. Conclusions: The study suggests association between the suppressive influence of low level ionizing radiation on circulating in peripheral blood, especially of B1 cells as well as of memory B cells, in workers of X-ray units, which is adverse in relation to microbiological threat.
    Źródło:
    International Journal of Occupational Medicine and Environmental Health; 2014, 27, 3; 467-473
    1232-1087
    1896-494X
    Pojawia się w:
    International Journal of Occupational Medicine and Environmental Health
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Upper respiratory tract infections and influenza-like illnesses among healthcare workers: are serological tests useful in monitoring influenza and influenza-like illness?
    Autorzy:
    Toczek-Kubicka, Katarzyna
    Szenborn, Filip
    Kuchar, Ernest P.
    Szenborn, Leszek
    Powiązania:
    https://bibliotekanauki.pl/articles/2153866.pdf
    Data publikacji:
    2022-12-29
    Wydawca:
    Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
    Tematy:
    IgM antibodies
    vaccination
    humoral response
    influenza
    healthcare workers
    influenza-like illness
    Opis:
    Background Healthcare workers (HCWs) are at high risk for exposure to upper respiratory tract infections (URTIs) and influenza-like illnesses (ILIs). The present study aimed to surveil URTIs and ILIs and their impact among the Department of Pediatric Infectious Diseases in Wroclaw employees and evaluate their humoral response to influenza. Material and Methods Thirty-six HCWs participated in the first season and 32 HCWs in the second season during years of the study. The authors carried out a URTI/ILI surveillance, and all HCWs were asked to complete a weekly report during 2 influenza seasons: 2016/2017 (S1) and 2017/2018 (S2). In S1 both IgG and IgM antibodies against influenza A and B were assessed. The HCWs with symptoms of ILI were encouraged to undergo PCR tests for influenza. Results No significant differences in reporting URTI were found among vaccinated and non-vaccinated HCWs and HCWs and the control group. Depending on the year 5.5–17.2% of HCWs were treated with antibiotics because of URTI. In the study 58.7% of participants in S1 and 66.7% in S2 decide to work despite the URTI symptoms. There was no statistical relationship between the concentration of anti-influenza IgG and the number of URTIs and ILIs reported. Only vaccinated were willing to undergo voluntary influenza testing. Conclusions The URTI and ILI occur commonly in HCWs, and HCWs contract URTIs as often as the control group. Despite their medical education, HCWs work with the symptoms of infection and overuse antibiotics to treat the URTI. Serology testing is not able to follow the infection’s dynamics or identify the people immune to the influenza-like illness. The diagnostic value of IgM antibodies in acute influenza infection is negligible. Vaccinated HCWs are more focused on their health and are more willing to undergo influenza tests.
    Źródło:
    Medycyna Pracy; 2022, 73, 6; 441-447
    0465-5893
    2353-1339
    Pojawia się w:
    Medycyna Pracy
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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