Biomedical subjects

Wanda Stankiewicz

Publications and source records attributed to Wanda Stankiewicz.

11 recordsLinked to original sources

PubMed2006

Immunotropic influence of 900 MHz microwave GSM signal on human blood immune cells activated in vitro.

In an earlier study we reported that G(o) phase peripheral blood mononulclear cells (PBMC) exposed to low-level (SAR = 0.18 W/kg) pulse-modulated 1300 MHz microwaves and subsequently cultured, demonstrate changed immune activity (Dabrowski et al., 2003). We investigated whether cultured immune cells induced into the active phases of cell cycle (G(1), S) and then exposed to microwaves will also be sensitive to electromagnetic field. An anechoic chamber of our design containing a microplate with cultured cells and an antenna emitting microwaves (900 MHz simulated GSM signal, 27 V/m, SAR 0.024 W/kg) was placed inside the ASSAB incubator. The microcultures of PBMC exposed to microwaves demonstrated significantly higher response to mitogens and higher immunogenic activity of monocytes (LM index) than control cultures. LM index, described in detail elsewhere (Dabrowski et al., 2001), represents the monokine influence on lymphocyte mitogenic response. The results suggest that immune activity of responding lymphocytes and monocytes can be additionally intensified by 900 MHz microwaves.

Cell Cycle↗

PubMed2005

[Aspects of biological activity of T and NK lymphocytes in children with adenoid hypertrophy and concomitant otitis media with effusion].

UNLABELLED: The aim of this study was to inquire whether it has got an influence on the number and activity of peripheral blood T and NK cells. MATERIAL AND METHODS: The examined group consisted of 51 children with adenoid hypertrophy. The first group consisted of 17 children with only one episode of otitis media with effusion (ome). The second group consisted of 14 children with more than 4 episodes of ome and the third group consisted of 20 children with adenoid hypertrophy without ome. Evaluation of percentage of CD4+, CD8+ and NK subsets with co-expression of CD69, HLA-DR molecules in peripheral blood was performed by flow cytometry method. In examined groups with ome the decrease of CD4 number was compensated by increase of the number of NK and CD19 cells. In these groups the increase of CD69 and HLA-DR expression on the examined subsets was observed. The results suggest that in recurrent otitis media with effusion may be one of the factors causing T lymphocytes deficiency. Obtained results might be one of the criteria of using adenoidectomy.

Adenoids↗

PubMed2005

[Immunoregulatory disorders in chronic sinusitis in patients with atopy].

UNLABELLED: Disorders of immunoregulatory activity of T lymphocytes and excessive immunogenic activity of antigen presenting cells are recognised as an important pathogenic elements in allergic diseases. Successful prevention of development of these pathomechanisms determines the effectiveness of administered therapy. The aim of presented investigations was to assess the kind and the degree of immune disorders in the group of 40 patients with chronic allergic sinusitis (CAS). The range of evaluated parameters comprised the indices of immune competence of T cells in microcultures of mononuclear cells isolated from the blood (response to mitogens PHA and Con A, saturation of IL-2 receptors, T-cell suppressive activity--SAT index), indices of immunogenic activity of monocytes (LM index correlated with the ratio of concentrations of IL-1 beta/IL-1ra, concentrations of IL-1beta, IL-1ra, IL-4 and IL-6 in the culture supernatants). The results were compared with the similar estimations performed in the group of 20 healthy blood donors. RESULTS: The obtained results demonstrated significant deficiency of T cell immune competence in the group of patients suffering from CAS (hyperreactivity of non-matured T cells to Con A, decreased saturation of IL-2 receptors, deficient T-cell suppressive activity and quantitative deficiency of TCD8 cells). In contrast to that, the immunogenic activity of monocytes was significantly elevated in the group of CAS patients as compared to the control group (significantly higher values of LM index, considerable increased concentrations of IL-1b, IL-4 and IL-6). CONCLUSIONS: The observed immunoregulatory deficiency of T-cell population and increased immunogenic activity of antigen presenting cells (monocytes) in CAS patients seem to suggest that the routine antiinflammatory treatment in these patients should be supplemented with the immunocorrective therapy aimed to restore the deficient thymus-dependent immune competence.

Adult↗

PubMed2005

[Nitric oxide as indicator of paranasal sinusitis].

Squamous cell carcinoma antigen (SCCAg) is one of the most common markers used in diagnosis of head and neck cancer and larynx cancer. We tested correlations between level of SCC Ag and tumor size, presence of lymph node metastasis, clinical advances of tumour and histopathological diagnosis. Pretreatment level of SCC antigen was evaluated in 34 patients with squamous cell carcinoma of the larynx. Microparticle enzyme immunoassay was used to measure the SCCAg level. Elevated SCCAg serum levels were found in 41% of patients. The magnitude of the marker elevations were correlated with lymph node metastases (N0 versus N2, and N1 versus N2). Our date indicate that in patients with larynx cancer SCCAg does not appear to be a sensitive marker in the primary diagnosis. However, seem to be useful marker for monitoring nodal invasion.

Adult↗

PubMed2005

[Effectiveness of Broncho-Vaxom in prevention of recurrent upper respiratory tract infection in children].

AIM OF THE STUDY: Evaluation of effectiveness of immunostimulating treatment with Broncho-Vaxom and his influence on concentration of proinflammatory cytokines in children with recurrent upper respiratory tract infection. MATERIAL AND METHODS: The study comprised 32 children (the average age 8 years and 4 months) with recurrent upper respiratory tract infection received immunostimulating treatment with Broncho-Vaxom. 20 children (the average age 7 years and 8 months) with recurrent upper respiratory tract infection which did not receive treatment with Broncho-Vaxom consisted the control group. In all children clinical state and concentration of cytokines TNF-alpha and, IL-1beta, IL-6, IL-8 in serum was examined. Period of observation in both groups carried out 24 months. Follow-up was executed after 6 months. RESULTS: In children treated with Broncho-Vaxom statistically significant (p<0.01) decrease in frequency of occurrence as well as shortening of duration of upper respiratory tract infection were observed. In children treated with Broncho-Vaxom statistically significant (p<0.01) decrease of serum concentration of TNF-alpha and in time of observation. The statistically significant changes were not observed in serum concentrations IL-1beta in time of observation. It was statistically significant (p<0.01) affirmed the rise of serum concentration of IL-6 in time of observation, the largest growth of concentration this cytokine stepped out in 1 year of treatment. The statistically significant (p<0.01) increase of concentration cytokine IL-8 in the first year of treatment as well as statistically significant (p<0.05) decrease of concentration this cytokine after end of treatment. CONCLUSION: The treatment with Broncho-Vaxom shows the high effectiveness in prevention of recurrent upper respiratory tract infection in children as well as the influences of profitable changes in profile of serum cytokines which can impact on limitation the inflammation process in the upper respiratory tract.

Adjuvants, Immunologic↗

PubMed2004

[Cancer antigen 125 as a marker of ascites in patients with liver cirrhosis].

Cancer antigen 125 (CA-125) is usually used to monitor the course of epithelial ovarian cancer. It has recently been reported that liver cirrhosis is associated with elevated serum CA-125, especially in the presence of ascites. The aim of the study was to evaluate CA-125 as a marker of ascites in patients with liver cirrhosis. Seventy-two (72) patients with liver cirrhosis of different aetiology were studied. Ca-125 levels were measured in stored serum collected from the patients. Ca-125 concentrations were elevated in patients with liver cirrhosis and ascites, irrespective of patients' sex and cirrhosis aetiology. CA-125 concentrations were normal in cases of liver cirrhosis without ascites. Elevated cancer antigen 125 is a sensitive marker of cirrhotic ascites. An inappropriate use of this test in cases of liver cirrhosis in females may suggest the ovarian cancer incident and lead to unnecessary surgical intervention.

Ascites↗

PubMed2003

[IL-8 and T-lymphocytes expressing adhesion molecules LFA-1 (CD11a/CD18), Mac-1 (CD11b/CD18) Lsel in lower respiratory tract obstructive disease].

Chemokines and T-lymphocytes play an important role in lower respiratory tract inflammation. This study evaluated the concentration of IL-8 and count of T-lymphocytes expressing adhesion molecules LFA-1, Mac-1, Lsel and their correlation in patients with asthma and COPD in periods of exacerbation and clinical improvement (after seven days of anti-inflammatory treatment). In all subjects bronchoscopic examination with BAL procedure were done in exacerbation period and after seven days of treatment. The concentration of IL-8 was measured by ELISA, and the expression of adhesion molecules by biotin-streptavidin methods. The highest concentration of IL-8 was observed in asthma patients in clinical improvement period, and the highest count of T-lymphocytes was observed in patients with COPD in remission phase. Increased concentration of chemokines could have been influenced by type of treatment administered, especially beta 2-mimetics. The significant correlation observed in COPD patients between IL-8 concentration and counts of T-cells expressing LFA-1 (r = 0.44), Mac-1 (r = 0.49), Lsel (r = 0.42) in exacerbation period suggest a chemotactic influence of IL-8 on T-lymphocytes.

Acute Disease↗

PubMed2003

[The role of immunoregulatory disorders in pathogenesis of bronchial asthma].

The set of cellular and humoral elements which participate in the pathogenetic chain of bronchial asthma is regarded as characteristic for this disease. They include, among many others: mast cells, basophils, eosinophils, macrophages, Th2 phenotype lymphocytes, IgE antibodies, histamine, leukotrienes and some pro-inflammatory cytokines. The majority of them are effectory agents active at the end of pathogenic immune response. The therapy antagonizing their influences alleviates the symptoms but does not eliminate the cause of the illness. The authors call the attention to the pathogenic significance of immunoregulatory disorders which appear during the induction phase of immune response in patients with symptoms of bronchial asthma. On the basis of current literature and own, already published studies, the authors point to the significance of recently discovered and described thymus-dependent cellular population of regulatory T lymphocytes which are active in prevention of development of allergic and autoaggressive reactions. It is suggested that deficiency of regulatory T cell population caused by undesired environmental influence on thymic lymphopoiesis and the concomitant overstimulation of immunogenic antigen-presenting dendritic cells, create the conditions under which pathogenic immune response may well develop. Therefore, the possibility of introducing of prothymic immunocorrective treatment in bronchial asthma should be taken into account in further clinical studies.

Asthma↗

PubMed2002

Cellular and cytokine immunoregulation in patients with chronic obstructive pulmonary disease and bronchial asthma.

BACKGROUND: Different forms of chronic airway inflammation may involve diverse pathogenic elements. In general, deficient defence response is a feature of chronic obstructive pulmonary disease (COPD), whereas distorted immunoregulatory mechanisms lead to development of asthmatic symptoms. In addition to diverse effector mechanisms, the cellular and humoral elements participating in the development of immune response may appear to be different in COPD and bronchial asthma (BA) patients. AIMS: To evaluate the immunoregulatory properties of T cells and monocytes in cultures of peripheral blood mononuclear cells (PBMC) and to determine the chosen cytokine profiles in COPD and BA patients. METHODS: The microcultures of PBMC from COPD and BA patients were assessed for the T-cell response to mitogens, saturation of interleukin (IL)-2 receptors, T-cell suppressive activity and monokine influence on lymphocyte proliferation. Concomitantly, the cytokine (IL-1beta, interleukin-1 receptor antagonist, tumour necrosis factor-alpha, IL-4, IL-6, IL-8) concentrations were determined in the serum, the broncho-alveolar lavage fluid and in the culture supernatants. RESULTS: The T-lymphocyte reactions (response to phytohaemagglutinin, IL-2 receptor saturation, suppressive activity) were lower in BA patients than in COPD patients. Reversely, the immunogenic activity of monocytes (IL-1beta versus IL-1ra production) was higher in BA patients than in COPD patients. The highest values of cytokine concentrations were found in the culture supernatants. The concentrations of tumour necrosis factor-alpha, IL-4, IL-6 and IL-8 were significantly higher and the concentration of IL-1ra was lower in BA patients than in COPD patients. CONCLUSION: The assessments of cellular immunoregulatory properties and cytokine profiles in the cultures of blood mononuclear cells may prove helpful for diagnostic and therapeutic discrimination between BA and COPD patients.

Adult↗

PubMed2002

[Immunologic conditions for efficient vaccination].

The quality of the vaccine and the way of immune response determine the result of vaccination, its safety and efficiency. The border between expected benefits and unexpected adverse side effects is determined by the degree of immunoregulatory competence of immune system. On the grounds of current views on the role of immunoregulatory disorders in development of allergic and auto aggressive diseases, the authors consider the conditions in which the vaccinations may contribute for appearance of erroneous immune responses.

Humans↗

PubMed2002

[Selected inflammatory markers in patients with acute coronary syndrome].

The aim of the study was the assessment of selected inflammatory markers in patients with stable and unstable angina pectoris, in comparison to patients with dyslipidemia without coronary artery disease. The study group included 61 patients (37-79 years old), divided into three subgroups: group I. 26 (43%) with unstable angina, group 2. 19 (26%) with stable angina, group III. 16 (26%) dyslipidemia without coronary artery disease. We measured serum levels of cytokines (IL-1B, IL-1Ra, IL-2, IL-6, TNF-alpha), immunoglobulins (IgG, IgE, IgM), fibrinogen. C-reactive protein and subclass of lymphocytes T CD4 and T CD8. In stable and unstable angina pectoris group we found lower percentage of T CD4, T CD8 and higher level of TNF-alpha. In unstable angina group the level of IL-1 beta was lower and the concentration of C-reactive protein, IgE was higher in comparison to group without coronary artery disease. Observed immunoregulatory disorders confirm immune mechanism in the origin of unstable angina pectoris.

Adult↗