Publication: Chlamydia Pneumoniae Varlığının, Kronik Obstrüktif Akciğer Hastalığı Akut Alevlenmesinde Mikroimmünofloresan Testi ve Real-Time Pcr Yöntemi ile Araştırılması
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ÖZET Chlamydia pneumoniae, pnömoni, bronşit, farenjit ve astım ile ilişkili olduğu bilinen solunum yollarının sık rastlanan bir patojenidir. Bu çalışmada, kronik obstnlktif akciğer hastalığı (KOAH) akut alevlenmesi olan hastalarda mikroirnmûnofloresan (MIF) testi ve polimeraz zincir reaksiyonu (PCR) ile C. pneumoniae infeksiyonunun rolünü araştırmayı amaçladık. KOAH akut alevlenmesi olan 69 hastanın balgam (n=61) ve boğaz süröntü (n=69) örneği ile, 64 kişilik kontrol grubunun boğaz sürüntü (n=64) örneğinde C. pneumoniae varlığını göstermek için, Real-Time PCR metodu kullanıldı. Her iki grupta C. pneumoniae1 ya karşı oluşan antikorlar akut dönemde serolojik olarak MIF testi ile araştırıldı. C. pneumoniae akut infeksiyonu, MIF test ve/veya Real-Time PCR metodu ile hastaların 15 (%21.7)' inde saptandı. PCR metodu ile KOAH hastalarının 12 (%17.4)' sinde C. pneumoniae pozitifliği saptandı. Serolojik olarak MIF testi ile hastaların 5 (%7.2)' inde akut infeksiyon bulundu (2 hastada IgM pozitifliği, 3 hastada >1 -5 Yİ IgG titre pozitifliği). İki hasta hem PCR hem de MEF metodu ile pozitif saptandı. Diğer yandan, kontrol grubunda MIF ile akut infeksiyon saptanmadı. PCR metodu ile kontrol grubundan 5 (%7.8) kişide C. pneumoniae pozitifliği vardı. C. pneumoniae akut infeksiyonu yönünden iki grup arasında istatistiksel anlamlı fark bulundu (p<0.05). PCR metodunun kullanımmda, balgam ve boğaz sürüntü örnekleri karşılaştırıldığında aralarında anlamlı fark yoktu (p>0.05). C. pneumoniae IgG seropozitifliği hastalarda % 82.6, kontrol grubunda % 62.5 idi (p<0.05). C. pneumoniae kronik persistan infeksiyonu hastaların % 43.5 'inde, kontrol grubunun % 23.4 'ünde saptandı (p<0.05). Sonuç olarak, bulgularımız C. pneumoniae' nın KOAH akut alevlenme patogenezinde rolü olabileceğini göstermektedir. Bununla birlikte Real-Time PCR, C. pneumoniae infeksiyonu tanısında kullanışlı bir metod olabilir ve balgam ile boğaz sürüntü örneklerinin her ikisinden de bu yöntemde fâydalrnabilinir. Anahtar Kelimeler: Chlamydia pneumoniae, KOAH, balgam, boğaz sürüntüsü, Real- Time PCR, mikroirnmûnofloresan test VHl
ABSTRACT Chlamydia pneumoniae is a common respiratory tract pathogen known to be associated with pneumonia, bronchitis, pharyngitis and asthma. We aimed to study the role of C. pneumoniae infections in patients with acute exacerbation of chronic obstructive pulmonary disease (COPD) using micro-immunoflourescence (MIF) test and polymerase chain reaction (PCR) method. Real-Time PCR was used to screen throat swab (n=69) and sputum (n=61) samples from 69 patients with acute exacerbation of COPD and throat swab (n=64) samples from 64 healthy individuals. Acute serological determination of antibodies to C. pneumoniae was performed by MIF test in both groups. C. pneumoniae in infection was detected in 15 (21.7%) patients by MIF test and/or Real-Time PCR method. Twelve (1 7.4%) patients of COPD group were positive for C. pneumoniae by PCR method. Serological evidences of acute infection were found in 5 (7.2%) patients by MIF test (IgM positive for 2 patients; IgG titer > 1:512 positive for 3 patients). Two patients were positive by either PCR or MIF methods. On the other hand, acute infection was not detected in control group by MEF test Five (7.8 %) persons of control group were positive for C. pneumoniae by PCR method. The presence of acute C. pneumoniae infection in between two groups was statistically significant (p<0.05). However, no statistically significant differences was found between sputum and throat swab samples by using PCR method (pX).05). C. pneumoniae IgG seropositivity was 82.6% in COPD patients and 62.5% in control group (p<0.05). Chronic persistent C. pneumoniae infection was detected in 43.5% of COPD patients and 23.4% of control group (p<0.05). In conclusion, our findings suggested that C. pneumoniae may have a role in the pathogenesis of acute exacerbation of COPD. In addition, Real-Time PCR may be a useful method in the diagnosis of C. pneumoniae infection and could be utilized for both of sputum and throat swabs samples. Key Words: Chlamydia pneumoniae, COPD, sputum, throat swab, Real-Time PCR, microimmunonuorescence test. IX
ABSTRACT Chlamydia pneumoniae is a common respiratory tract pathogen known to be associated with pneumonia, bronchitis, pharyngitis and asthma. We aimed to study the role of C. pneumoniae infections in patients with acute exacerbation of chronic obstructive pulmonary disease (COPD) using micro-immunoflourescence (MIF) test and polymerase chain reaction (PCR) method. Real-Time PCR was used to screen throat swab (n=69) and sputum (n=61) samples from 69 patients with acute exacerbation of COPD and throat swab (n=64) samples from 64 healthy individuals. Acute serological determination of antibodies to C. pneumoniae was performed by MIF test in both groups. C. pneumoniae in infection was detected in 15 (21.7%) patients by MIF test and/or Real-Time PCR method. Twelve (1 7.4%) patients of COPD group were positive for C. pneumoniae by PCR method. Serological evidences of acute infection were found in 5 (7.2%) patients by MIF test (IgM positive for 2 patients; IgG titer > 1:512 positive for 3 patients). Two patients were positive by either PCR or MIF methods. On the other hand, acute infection was not detected in control group by MEF test Five (7.8 %) persons of control group were positive for C. pneumoniae by PCR method. The presence of acute C. pneumoniae infection in between two groups was statistically significant (p<0.05). However, no statistically significant differences was found between sputum and throat swab samples by using PCR method (pX).05). C. pneumoniae IgG seropositivity was 82.6% in COPD patients and 62.5% in control group (p<0.05). Chronic persistent C. pneumoniae infection was detected in 43.5% of COPD patients and 23.4% of control group (p<0.05). In conclusion, our findings suggested that C. pneumoniae may have a role in the pathogenesis of acute exacerbation of COPD. In addition, Real-Time PCR may be a useful method in the diagnosis of C. pneumoniae infection and could be utilized for both of sputum and throat swabs samples. Key Words: Chlamydia pneumoniae, COPD, sputum, throat swab, Real-Time PCR, microimmunonuorescence test. IX
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Tez (tıpta uzmanlık) -- Ondokuz Mayıs Üniversitesi, 2001
Libra Kayıt No: 35653
Libra Kayıt No: 35653
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