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Article
XRCC1 codon 194 polymorphism in Iraqi population

Author: Luma A. H. Al Obaidy
Journal: Iraqi Journal of Biotechnology المجلة العراقية للتقانات الحياتية ISSN: 18154794 Year: 2017 Volume: 16 Issue: 3 Pages: 194-199
Publisher: Baghdad University جامعة بغداد

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Abstract

XRCC1 is one of the DNA repair genes, which play an important role in maintains DNA stability via DNA repair by base excision repair and single strand break, As its acts as a scaffold to other repairing proteins. In this study the polymorphism at the codon 194 had been studied in (202) of Iraqi population, distributed in two groups (106) Arab and (96) Kurdish. The alleles for the 194 codon, were investigates by PCR-RFLP techniques. It's found that (94) represented 88.6% Arab individuals carrying the CC dominant homozygous genotype, while (12) individuals represented 11.4% who carry the CT heterozygous genotype, and no one had the recessive TT genotype. In Kurdish group (94) represented 97.9% individuals had the CC dominant homozygous genotype, while only (2) represented 2.1% had the CT heterozygous genotype, also no one had the recessive TT genotype. The allele frequency for the Arab individuals was 0.9434 for the C which encoding for Arginin and 0.0566 for the T allele which encoding for Tryptophan. In Kurdish individuals the frequency of C allele was 0.99 while the frequency of the T allele was 0.01. These results may indicates that the C allele is the most common allele in Iraqi population in both Arab and Kurdish, and there is a slightly high allele frequency were observed in Kurdish may due intermarriage leading to reduce the recessive allele in the population.


Article
Solar Photocatalytic of Reactive Blue Dye in Aqueous Suspension of V2O5

Authors: A.H. Al-Obaidy --- R.H. Al-Anbari --- E.A. Mohammed
Journal: Engineering and Technology Journal مجلة الهندسة والتكنولوجيا ISSN: 16816900 24120758 Year: 2017 Volume: 35 Issue: 1 Part (A) Engineering Pages: 1-8
Publisher: University of Technology الجامعة التكنولوجية

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Abstract

Decolorization of blue azo dye (Cibacron Blue FN-R) in simulated wastewater has been investigated as a function of solar photocatalytic process. Different parameters that affected on the removal efficiency, such as initial concentration of dye, pH of the solution, catalysis dosage, and H2O2 concentration, were evaluated to find the optimal operation conditions. From the experimental results, the desired pH value for solar photocatalytic V2O5 was 2 and the best catalysis dosage was 500mg/L. In addition, the most efficient H2O2 concentration was 100 mg/L for V2O5. The mathematical models that describe the photocatalytic process have been predicted by using response surface methodology (RSM). The decolorization efficiency by using V2O5 as solar photocatalytic can be reached to 97%.

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