Long Term Optimisation of F8 Gene Mutation Screening by DHPLC

2005 ◽  
pp. 341-343
Author(s):  
C. Klein ◽  
H. Singer ◽  
M. Lim-Eimer ◽  
M. Watzka ◽  
V. Ivaskevicius ◽  
...  
2008 ◽  
Vol 83 (6) ◽  
pp. 630-638 ◽  
Author(s):  
Iacopo Olivotto ◽  
Francesca Girolami ◽  
Michael J. Ackerman ◽  
Stefano Nistri ◽  
J. Martijn Bos ◽  
...  

Author(s):  
Nasrollah SALEH-GOHARI ◽  
Kolsoum SAEIDI ◽  
Sima ZIAADINI-DASHTKHAKI

Background: β-thalassemia is characterized by reduced synthesis of the hemoglobin beta chain that results in microcytic hypochromic anemia and reduced amounts of hemoglobin A (HbA) on hemoglobin analysis. β-thalassemias are caused by mutations in the β-globin gene, inherited in an autosomal recessive manner. Determining molecular defects in couples carrying β-thalassemia is a prerequisite for prenatal diagnosis of the disease. In this regards, database of β-globin gene haplotypes facilitates mutation detection of the gene and helps genetic counselors to reach the goals of β-thalassemia prevention program. Methods: In this cross-sectional study, 255 couples attended genetic counseling between December 2017 and January 2019 in Afzalipour Hospital, Kerman University of Medical Scinces, Kerman, Iran as suspicious of βthalassemia carriers. Furthermore, they were investigated using amplification refractory mutations system-polymerase chain reaction and restriction fragment length polymorphism methods for mutation screening and haplotype analysis of polymorphic sites in β-globin gene cluster, respectively. Results: We identified 20 different types of β-globin gene mutation in 449 β-thalassemia carriers. Analysis of the pattern of Hind III/Gγ, Hinf I/5′β, Hinc II/3′Ψβ, Rsa I/5′β, AvaII/β and Hind III/Aγ polymorphic sites in 257 alleles of informative families revealed 17 different haplotypes. Haplotype 1 (77.24%) showed strong linkage with the most common mutation IVSI-5 while haplotype 5 (66.67%) was associated with the second frequent mutation IVSII-1. Conclusion: To our knowledge, these β-globin haplotypes are reported for the first time which are different with those found in other parts of Iran. The current haplotypes pattern data makes the counseling of β-thalassemia carriers more straightforward and the process of mutation screening faster and more accurate.


2009 ◽  
Vol 117 (08) ◽  
pp. 391-394 ◽  
Author(s):  
A. Lopez ◽  
S. Foscaldi ◽  
M. Pérez ◽  
G. Krochik ◽  
M. Rodríguez ◽  
...  

2017 ◽  
Vol 27 ◽  
pp. S140
Author(s):  
R. Rossi ◽  
C. Scotton ◽  
P. Barton ◽  
R. Buchan ◽  
R. Walsh ◽  
...  

2015 ◽  
Vol 124 (1_suppl) ◽  
pp. 94S-99S ◽  
Author(s):  
Hidekane Yoshimura ◽  
Chie Oshikawa ◽  
Jun Nakayama ◽  
Hideaki Moteki ◽  
Shin-ichi Usami

Objective: This study examines the CLRN1 gene mutation analysis in Japanese patients who were diagnosed with Usher syndrome type 3 (USH3) on the basis of clinical findings. Methods: Genetic analysis using massively parallel DNA sequencing (MPS) was conducted to search for 9 causative USH genes in 2 USH3 patients. Results: We identified the novel pathogenic mutation in the CLRN1 gene in 2 patients. The missense mutation was confirmed by functional prediction software and segregation analysis. Both patients were diagnosed as having USH3 caused by the CLRN1 gene mutation. Conclusion: This is the first report of USH3 with a CLRN1 gene mutation in Asian populations. Validating the presence of clinical findings is imperative for properly differentiating among USH subtypes. In addition, mutation screening using MPS enables the identification of causative mutations in USH. The clinical diagnosis of this phenotypically variable disease can then be confirmed.


2015 ◽  
Vol 25 ◽  
pp. S204
Author(s):  
K. Takayama ◽  
S. Mitsuhashi ◽  
I. Nonaka ◽  
S. Noguchi ◽  
I. Nishino

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