Chromosomal aberrations in chronic lymphocytic leukemia by interphase fluorescence in situ hybridization and their association with clinical features / 中国实验血液学杂志

This study was aimed to investigate the common chromosomal aberrations in chronic lymphocytic leukemia (CLL) and to explore the relationship between these chromosomal aberrations and clinical features of CLL. Sequence-specific DNA probes (D13S25, RB1, p53, ATM) and one centromeric probe CSP12 were applied to detect del(13q14), del(17p13), del(11q22-q23) and trisomy 12 by using interphase fluorescence in situ hybridization (I-FISH). 9 CLL patients with negative conventional cytogenetics or without mitotic figure were enrolled in this study. The threshold was established using 10 controls without hematopoietic malignancies. The results indicated that compared with the established threshold, all of the 9 CLL patients showed cytogenetic abnormalities. The detection using p53 and D13S25 showed positive in 7 cases, positive was observed in 5 cases by using ATM and in 4 cases by using both RB1 and CSP12. There was significant correlation between the ATM and the hemoglobin level of the patients. In addition, the elevated probability of gaining bulky lymphadenopathy was found in ATM positive patients. It is concluded that the I-FISH is a more rapid and sensitive technique for analysis of chromosome aberrations in CLL. A large series study with long-term follow-up is needed to reveal the role of cytogenetic abnormalities in the determination of CLL prognosis.

Meta-analysis on the relationship of chlamydia pneumonia infection and coronary heart disease / 中国医学科学院学报

<p><b>OBJECTIVE</b>To determine the relationship of chlamydia pneumonia (CP) infection and coronary heart disease (CHD).</p><p><b>METHODS</b>Studies published before 2004 that had reported on correlations between CHD and CP were collected. Studies were sorted into four sorts according to different testing methods. We determined to use either fixed effect model or random effect model according to the result of heterogeneity test. Meta-analysis was done by RevMan 4.2.</p><p><b>RESULTS</b>Totally 29 studies were included into the review. The odd ratio (OR) to review all literature enzyme-linked immunosorbent assay (ELISA), dot-immunogdd filtration assay (DIGFA), and micro-immunofluorescence (MIF) was 4.00 (3.07, 5.22), 2.86 (1.89, 4.32), 14.89 (1.46, 151.57), and 4.46 (3.15, 6.32).</p><p><b>CONCLUSION</b>CP infection is associated with CHD, CP infection may be one of the risk factors of CHD.</p>