Fluorescence in situ hybridization analysis of peripheral blood cells in Pearson marrow-pancreas syndrome

2001 ◽  
Vol 139 (3) ◽  
pp. 452-455 ◽  
Author(s):  
Itaru Yanagihara ◽  
Koji Inui ◽  
Keiko Yanagihara ◽  
Yong-Dong Park ◽  
Junko Tanaka ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Fluorescence In Situ Hybridization ◽  
Peripheral Blood ◽  
Blood Cells ◽  
Hybridization Analysis ◽  
Peripheral Blood Cells

Detection of Chromosomal Abnormalities in Chronic Lymphocytic Leukemia Increased by Interphase Fluorescence In Situ Hybridization in TPA-Stimulated Peripheral Blood Cells.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 4927-4927
Author(s):  
Anna Aventin ◽  
Jana Sanchez
Keyword(s):  
In Situ Hybridization ◽  
Chronic Lymphocytic Leukemia ◽  
Fluorescence In Situ Hybridization ◽  
Peripheral Blood ◽  
Blood Cells ◽  
Chromosomal Abnormalities ◽  
Lymphocytic Leukemia ◽  
Peripheral Blood Cells ◽  
Trisomy 12

Abstract Chromosomal abnormalities, namely deletion 11q-,13q-, 17p- and trisomy 12, have prognostic significance for patients with chronic lymphocytic leukemia (CLL). Several studies have demonstrated that the interphase fluorescence in situ hybridization technique (I-FISH) in CLL identifies such genomic aberrations in a higher frequency than classical karyotyping, including stimulated cultures using B-cell specific mitogens. However, there appears to be no information in the literature comparing I-FISH on non-cultured and cultured cells in CLL. A total of 56 samples from 49 patients with CLL were studied using commercially available probes for chromosomes 11q22.3(ATM), 13q14(13S272), 17p13(p53) and 12 centromere(D12Z3). We compared the results obtained by I-FISH-PBMC and those by interphase fluorescence in situ hybridization on TPA-stimulated peripheral blood cells (I-FISH-TPA) used for conventional cytogenetics in order to evaluate the usefulness of I-FISH-TPA. The proportion of abnormal nuclei obtained with the I-FISH-TPA was higher than that found with I-FISH-PBMC (P<0.001). Consequently, 15 cases with a negative or borderline result by I-FISH-PBMC became positive by I-FISH-TPA for deletion 11q- (n=2), 13q- (n= 9) and trisomy 12 (n=4). In all but one of these, chromosomal abnormalities were reconfirmed by either metaphase-FISH or conventional G-banding. Disease detection thus increased from 51% with I-FISH-PBMC to 78% with I-FISH-TPA. Interestingly, all 15 cases which reached the diagnostic thresholds for deletion 11q-,13q- and trisomy 12 had a slight lymphocytosis. An absolute lymphocyte count <8.7×109/l was found to be the critical threshold (P=0.037) below which I-FISH-TPA should be performed rather than I-FISH-PBMC. We have shown that I-FISH-TPA can not only detect a higher proportion of abnormal interphase nuclei but can also identify abnormal CLL cases which may be overlooked by I-FISH-PBMC, especially those with low absolute lymphocyte counts. I-FISH-TPA is thus a reliable technique for clinical diagnostics in CLL.

scholarly journals Fluorescence in situ hybridization analysis of hindgut bacteria associated with the development of equine laminitis

2008 ◽  
Vol 10 (10) ◽  
pp. 2901-2901 ◽  
Author(s):  
Gabriel J. Milinovich ◽  
Darren J. Trott ◽  
Paul C. Burrell ◽  
Emma L. Croser ◽  
Rafat A. M. Al Jassim ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Fluorescence In Situ Hybridization ◽  
Hybridization Analysis

Fluorescence In Situ Hybridization Analysis of Sex-Chromosome Mosaicism in Azoospermic Men

2001 ◽  
Vol 22 (6) ◽  
pp. 970-972 ◽  
Author(s):  
HIROSHI OKADA ◽  
MASAKI DOBASHI ◽  
TAKAFUMI YAMAZAKI ◽  
MASATO FUJISAWA ◽  
SOICHI ARAKAWA ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Fluorescence In Situ Hybridization ◽  
Sex Chromosome ◽  
Hybridization Analysis ◽  
Chromosome Mosaicism
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