نتایج جستجو برای: chromosomal sensitivity
تعداد نتایج: 380653 فیلتر نتایج به سال:
Background: Cirrhinus mrigala, one of the important fish widely consumed in India, was used for karyological observations and to evaluate the toxic effect of butachlor, an extensively used herbicide in rice fields in terms of chromosomal aberration test. Methods: Fishes were collected from “National Fish Seed Farm” Jyotisar with mean body weight of 20-50g. The experimental fishes were kept i...
A primer set of oligonucleotides (S18 and S19) from the ompC gene of Salmonella has been evaluated for specific detection of Salmonella by polymerase chain reaction (PCR). This primer set successfully amplified 40 Salmonella serovars (60 isolates), but not 24 non-Salmonella bacteria (42 isolates) that have been tested so far. The uniqueness of these primer sequences was also confirmed. The sens...
Background: Sperm chromatin insufficiencies leading to low sperm count and quality, infertility and transmission of chromosomal microdeletion and aneuploidies to next generations can be due to exposure to environmental pollutions, chemicals and natural or manmade ionizing radiation. In this project which has continued for more than 10 years and is unique in many technical aspects in Iran and in...
Background & Aims: The study of karyotype in several cases is the first step in the diagnosis of genetic disorders. The purpose of this study was to investigate the karyotype of a number of individuals with a range of possible genetic disorders. Materials & Methods: This researchis a descriptive cross-sectional study. Sampling was done after obtaining necessary permissions and written consent ...
Background Cytogenetic study of reproductive wastage is an important aspect in determining the genetic background of early embryogenesis. Approximately 15 to 20% of all pregnancies in humans are terminated as recurrent spontaneous abortions (RSAs). The aim of this study was to detect chromosome abnormalities in couples with RSAs and to compare our results with those reported previously. Materia...
introduction: infertility is a significant multifactorial disorder that can be caused by chromosomal abnormalities. in this study, we aimed to cytogenetically investigate male and female patients admitted to the genetic diagnostic laboratory of kayseri educational hospital in kayseri, turkey with varied clinical prediagnoses of infertility. materials and methods: chromosomes from cultured perip...
Background and Objective: Failure to thrive (FTT) is a sign that describes a particular problem rather than a diagnosis and explain growth failure or more advanced failure to gain weight appropriately. The aim of this study was to determine the prevalence and type of chromosomal abnormalities in patients presented with FTT. Materials and Method: One hundred FTT cases with clinical impressio...
Background Embryo morphology has been proposed as an alternative marker of chromosomal status. The objective of this retrospective cohort study was to investigate the association between the chromosomal status on day 3 of embryo development and blastocyst morphology.Embryo morphology has been proposed as an alternative marker of chromosomal status. The objective of this retrospective cohort stu...
Background: It is reported that high frequency of chromosomal aberrations in peripheral blood lymphocytes of individuals is a marker of cancer predisposition. The aim of this study was to investigate the in vitro frequency of chromosomal damage in lymphocytes of patients with head and neck cancer against gamma irradiation compared with those in healthy individuals. Methods: In a case and con...
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