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RISS 인기검색어
- 검색키워드
- 저자 : Hossein Allahyari (검색결과 2 건)
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Allahyari, Abolghasem,Sadeghi, Masoud,Ayatollahi, Hossein,Yazdi, Hamed Najjaran,Tavakol, Mohammad Asian Pacific Journal of Cancer Prevention 2016 Asian Pacific journal of cancer prevention Vol.17 No.9
Background: FLT3 is mutated in about 1/3 of acute myelogenous leukemia (AML) patients. The aim of the present study was to report the prevalence of FLT3 mutations and comparison with prognostic factors in AML patients in the Northeastern of Iran. Materials and Methods: This cross-sectional study concerned 100 AML cases diagnosed based on bone marrow aspiration and peripheral blood. DNA for every AML patient was extracted and underwent PCR with FLT3-ITD primers. Results: The mean age at diagnosis was 28.5 years (range, 1-66 years), 52 patients (52%) being male. Out of 100 AML patients, 21 (21%) had FLT3 mutation, (17 with FLT3-ITD, 81%, and 4 with FLT3-D825, 19%). Of the 21, 14 (66.7%) had heterozygous mutation. There was no significant difference between age, sex and organomegaly between patients with FLT3 mutation versus FLT3 wild-type. Conclusions: Our frequency of FLT3 is in line with earlier fidnings of approximately 20 to 30% and also the prevalence of FLT3-ITD is more than FLT3-D35 mutation. There was no significant difference between prognostic factors (age and sex) in the patients with FLT3 mutation versus FLT3 wild-type. The prevalence of FLT3 heterozygous mutations is more that homozygous mutations in AML patients.
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Mahmood Nazeri,Hossein Allahyari,Hossein Goldansaz 한국응용곤충학회 2018 Journal of Asia-Pacific Entomology Vol.21 No.3
Induced plant responses to herbivory can alter plant quality and influence subsequent interactions with organisms that use that plant as food source. In this study, we conducted several experiments in order to understand whether preference and performance of the cotton aphid, Aphis gossypii (Hem: Aphididae) and the spider mite, Tetranychus urticae (Acari: Tetranychidae) are affected by the previous herbivory of conspecific or heterospecific species on cucumber plants. Longevity, fecundity and pre-imaginal development time were measured as performance criteria. In addition, we explored whether these effects are local or systemic. In the case of performance experiments, the results varied from negative to neutral depending on the performance criteria, no positive effect was observed in studied interactions. Also, depending on performance criteria, the previous herbivory affected the plant systemically, or locally. Results of preference experiments indicated that mites and aphids prefer to settle and produce offspring on control leaf disc to prevent detrimental effects of the previous herbivory. Spider mites showed a stronger preference than aphids in the detection of induced leaf discs, which resulted in more mites being present and laying more egg on control leaf disc in both local and systemic treatments. Performing both preference and performance experiments, not only reveals the effect of herbivores on each other's mediated by the plant but also reveals more information about the sensitivity of herbivores to change in the quality of their host.
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