Skip to main content
User Image

عهود ظافر سلمان العمرى Ohoud Dahfer AlAmri

Assistant Professor

وكيلة قسم علم الحيوان (استاذ مساعد)

كلية العلوم
B.5, F.3, O.98
publication
Journal Article
2012

Ionizing radiation-induced DNA damage response identified in marine mussels, Mytilus sp

O, AlAmri, . 2012

There is growing concern over the potential detrimental impact of ionizing radiation on natural biota. The mechanistic cause-and-effect impact of ionizing radiation has yet to be characterized in any aquatic species. Adopting an integrated approach, including radiochemical analysis of environmental samples, we evaluate molecular responses to ionizing radiation in the marine mussel, Mytilus edulis. These responses included analyses of RAD51 mRNA expression, a gene involved in the repair of DNA double strand breaks, and induction of DNA strand breaks using the comet assay, in samples collected from a site impacted by low level ionizing radiation discharges. Based on activities of the radionuclides measured in sediment and mussel tissue at the discharge site, external and internal dose rates were low, at ca. 0.61 mGyh1 and significantly lower than the generic (all species) “no effect” dose rate of 10 uGyh1 , yet DNA strand breakage and RAD51 mRNA expression were both altered.

Issue Number
september 2012
Pages
107-112
more of publication
publications

Mannan oligosaccharide is one of the major components of the yeast cell wall. In the present study, the produc- tion, characterization, and bioactivity of yeast mannan were investigated.

by Ramy S. Yehia, Ahmed M. Saleh , Mohammad Bani Ismail, Saleh Al-Quraishy, Ohoud AlAmri, Rewaida Abdel-Gaber
2022
Published in:
Ohoud Alamri
publications

Background Rodentolepis nana (syn. Hymenolepis nana), the most common cyclophyllid tapeworm infecting rodents, is a well-studied gastrointestinal parasite in mice and belongs to the family…

2021
Published in:
Ohoud Alamri