نتایج جستجو برای: chromosomal anomaly
تعداد نتایج: 85966 فیلتر نتایج به سال:
One of the major causes of spontaneous abortion before the fourth month of pregnancy is chromosomal abnormalities. We report an unusual case of a familial balanced chromosomal translocation in a consanguineous couple who experienced 4 spontaneous abortions. Chromosomal studies were performed on the basis of G-banding technique at high resolution and revealed 46, XX, t (16 6) (p12 q26) and 46, X...
Background: Chromosomal aberrations can be one of the causes of fertility problems, including infertility or frequent abortions. Identification of chromosomal aberrations by clinical diagnostic techniques has been primarily performed through standard karyotyping. In this screening, the prevalence of these disorders were checking in individuals with fertility problems from west population of Ira...
Objectives: Although antenatal anomaly screening tests (AAST) provide valuable information about fetal health, performed to prevent the birth of children with chromosomal abnormalities, uncontrolled stress while performing such may negatively affect mother’s mental health. This study aimed systematically review clinical trial studies in which reducing pregnant women’s anxiety and concern proces...
Chronic lymphocytic leukemia (CLL) is known as type of originating from clonal mature B lymphocytes and has genetic heterogeneity. Many studies have been done to clarify the genome CLL. In these studies, del(13q) reported most common chromosomal aberration. Although this anomaly associated with good prognosis when isolated, patients clinical addition, in many gene mutations including TP53, NOTC...
background chromosomal abnormality plays an important role in different types of miscarriages. objectives the present study was designed to investigation chromosomal anomalies in three groups of couples with recurrent abortion (ra), spontaneous abortion (sa) and still birth (sb). patients and methods in this retrospective study, the frequency of chromosomal aberrations was investigated among 26...
Background: Extracardiac malformations can be seen in 20-45% of infants with congenital heart disease (CHD). Chromosomal abnormalities exist in 5-10% of patients with CHD. The aim of this study was to assess the frequency of overt extra cardiac malformations in children with CHD. Methods: This descriptive epidemiologic study was conducted on 720 patients with CHD referred to the pediatric ca...
Background: Nonlethal genetic damage is the basis for carcinogenesis. As various gene aberrations accumulate, malignant tumors are formed, regardless of whether the genetic damage is subtle or large enough to be distinguished in a karyotype. The study of chromosomal changes in tumor cells is important in the identification of oncogenes and tumor suppressor genes by molecular cloning of genes in...
One of the anomalies of the capital market is accrual anomaly. This anomaly refers to the negative relationship between returns and accruals. In the case of accrual anomaly, two behavioral and rational expectations have been raised. The main purpose of this study is to explain accrual anomaly using a new approach to distinguish an anomaly interpretation of risk interpretation. For this purpos...
The pathogenetic relationship between high-grade prostatic intraepithelial neoplasia (PIN), prostatic carcinoma, and metastases is poorly understood. We used fluorescence in situ hybridization (FISH) with centromere-specific probes for chromosomes 7, 8, 10, 12, and Y to evaluate numeric chromosomal anomalies in PIN (68 foci), localized prostatic carcinoma (78 foci), and lymph node metastases (8...
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