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Correlation between immune and neuronal parameters and stress perception in allergic asthmatics
R A Joachim1, O Noga, V Sagach
1Department of Internal Medicine and Psychosomatics, Charité Center for Internal Medicine and Dermatology, Charité-Universitaetsmedizin, Berlin, Germany. ricarda.joachim@charite.de
Summary
Stress significantly worsens asthma by increasing pro-inflammatory T cells, particularly TNF-alpha. This study links perceived stress to higher TNF-alpha levels and BDNF in asthmatic patients, suggesting stress management as a complementary therapy.
Area of Science:
- Immunology
- Pulmonology
- Psychoneuroimmunology
Background:
- Asthma is a chronic respiratory condition characterized by airway inflammation and hyperresponsiveness.
- The precise mechanisms linking psychological stress to asthma exacerbation remain unclear.
- Stress may exacerbate asthma by promoting a pro-inflammatory environment.
Purpose of the Study:
- To investigate the relationship between perceived stress and cytokine profiles in circulating lymphocytes of asthmatic patients.
- To explore the correlation between stress, inflammation markers, and lung function in asthma.
Main Methods:
- Evaluated stress perception, lung function, and serum neurotrophins (NGF, BDNF) in allergic asthmatics and healthy controls.
- Assessed intracellular cytokine production (IL-4, IFN-gamma, TNF-alpha) in lymphocytes via flow cytometry after mitogen stimulation.
- Compared cytokine profiles and neurotrophin levels between asthmatic and control groups.
Main Results:
- Asthmatic patients exhibited higher percentages of TNF-alpha-producing T cells compared to controls.
- In asthmatics, perceived stress correlated positively with TNF-alpha-producing T cells and serum BDNF levels.
- Forced expiratory volume (FEV1) showed a negative correlation with serum BDNF levels in asthmatic patients.
Conclusions:
- Findings support the hypothesis that stress exacerbates allergic asthma through a pro-inflammatory cytokine profile.
- Stress management may serve as an effective adjunctive therapy for allergic asthma.
- Targeting stress pathways could offer novel therapeutic strategies for asthma control.
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