نتایج جستجو برای: 24 bp duplication
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how to cite this article: mozafari h, taghikhani m, khatami sh, alaei mr, vaisi-raygani a, rahimi z. chitotriosidase activity and gene polymorphism in iranian patients with gaucher disease and sibling carriers. iran j child neurol. autumn 2016; 10(4):62-70. abstract objective chitotriosidase (ct) activity is a useful biomarker for diagnosis and monitoring of gaucher disease (gd). its applicatio...
conclusions in conclusion, chit1 24 bp duplication might not be a candidate gene for susceptibility to ptb. larger studies are necessary to confirm these findings in various populations. results homozygous wild type, heterozygous and homozygous mutant frequencies of chit1 24 bp duplication polymorphism were 43.9%, 43.9% and 12.2% in controls and 42.8%, 45.1% and 12.1% in ptb patients. we found ...
Human plasma chitotriosidase activity is a commonly used diagnostic and therapeutic biomarker for non-neuronopathic Gaucher disease. Chitotriosidase deficiency is common in non-African populations and is primarily caused by a 24 bp duplication in the encoding gene (CHIT1). Allele frequencies for the 24 bp duplication range from 20-50 % outside Africa. The present study found chitotriosidase def...
BACKGROUND The human chitinase chitotriosidase enzyme, which is encoded by the CHIT1 gene, is produced by macrophages, and may be important in immune responses to chitin-containing organisms, such as fungi. Plasma chitotriosidase activity is used to diagnose and monitor some forms of lysosomal storage disorders, such as Gaucher's and Niemann-Pick disease. However, homozygous duplication of a 24...
OBJECTIVE Chitotriosidase (CT) activity is a useful biomarker for diagnosis and monitoring of Gaucher disease (GD). Its application is limited by some variants in the CT gene. Two main polymorphisms are 24 bp duplication and G102S led to reduce CT activity. The aim of this study was to determine these variants influencing on plasma CT activity. MATERIALS & METHODS Blood samples were collected...
The human genome encodes a gene for an enzymatically active chitinase (CHIT1) located in a single copy on Chromosome 1, which is highly expressed by activated macrophages and in other cells of the innate immune response. Several dysfunctional mutations are known in CHIT1, including a 24-bp duplication in Exon 10 causing catalytic deficiency. This duplication is a common variant conserved in man...
We analyzed the mutational hotspot region of SRSF2 (Pro95) in 275 cases with chronic myelomonocytic leukemia (CMML). In addition, ASXL1, CBL, EZH2, JAK2V617F, KRAS, NRAS, RUNX1, and TET2 mutations were investigated in subcohorts. Mutations in SRSF2 (SRSF2mut) were detected in 47% (129 of 275) of all cases. In detail, 120 cases had a missense mutation at Pro95, leading to a change to Pro95His, P...
We analyzed the mutational hotspot region of SRSF2 (Pro95) in 275 cases with chronic myelomonocytic leukemia (CMML). In addition, ASXL1, CBL, EZH2, JAK2V617F, KRAS, NRAS, RUNX1, and TET2 mutations were investigated in subcohorts. Mutations in SRSF2 (SRSF2mut) were detected in 47% (129 of 275) of all cases. In detail, 120 cases had a missense mutation at Pro95, leading to a change to Pro95His, P...
Tnr1 (235 bp long) is a transposable element in rice. Polymerase chain reactions (PCRs) done with a primer(s) that hybridizes to terminal inverted repeat sequences (TIRs) of Tnr1 detected new Tnr1 members with one or two insertions in rice genomes. Six identified insertion sequences (Tnr4, Tnr5, Tnr11, Tnr12, Tnr13 and RIRE9) did not have extensive homology to known transposable elements, rathe...
Somatic mutations in the mitochondrial DNA (mtDNA) displacement loop (D-loop) region have been frequently detected in various human cancers. In a previous study, we identified a polyplasmic 260-bp tandem duplication and triplication mutation in the mtDNA D-loop of one gastric cancer. In the present study, we adopted a more sensitive back-to-back polymerase chain reaction method to screen for th...
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