Cytogenetic Analysis of Patients with Primary Amenorrhea in Southwest of Iran
نویسندگان
چکیده
Background and Objectives: Primary amenorrhea is not a disease but a symptom that may result from several quite different causes. Common hormonal cause of primary amenorrhea includes constitutional delay, hypothalamic –pituitary dysfunction, chronic systemic disease and absent ovarian function. The aim of this study was to estimate the incidence of the chromosomal abnormality referred for karyotyping in patients with primary amenorrhea in southwest of Iran. Material and Methods: Chromosomal analysis was carried out in 220 such cases that were referred from different parts of the south of Iran. The standard protocol for peripheral blood lymphocyte culture was followed for metaphase chromosome preparation and conventional analysis of G-banded chromosome. Results: The frequency of abnormal karyotypes was 20% in primary amenorrhea. The chromosomal abnormalities can be classified into five main types with or without mosaicism. 1-The most frequent karyotype was X chromosome aneuploidies (10%,n=22) 2-Male karyotype 46, XY was present in 5.5 % (n=12). 3-Structural anomalies of the X chromosome were detected in 3.2% (n=7) . 4-Mosaicism of male chromosome constitution and X chromosome aneuploidy was present in two (0.9%) cases (45XO/46XY). 5-Mosaicism of X chromosome aneuploidy and structural anomalies of X chromosome was found in one (0.45%) case [45, X/46X, i (Xq)]. Conclusion: The present study has emphasized that karyotyping is necessary in evaluation of primary amenorrhea. This study also revealed the incidence of chromosomal abnormalities in women with primary amenorrhea in southwest of Iran is similar to that reported in previous
منابع مشابه
Cytogenetic Analysis of Patients with Primary Amenorrhea in Southwest of Iran
Background and Objectives: Primary amenorrhea is not a disease but a symptom that may result from several quite different causes[NN1] . Common hormonal cause of primary amenorrhea includes constitutional delay, hypothalamic –pituitary dysfunction, chronic systemic disease and absent ovarian function. The aim of this study was to estimate the incidence of the chromosomal abnormality referred ...
متن کاملFrequency and the Type of Chromosomal Abnormalities in Patients with Primary Amenorrhea in Northeast of Iran
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Chromosomal abnormality in patients with secondary amenorrhea.
BACKGROUND Secondary amenorrhea is a condition in which there is cessation of menses after at least one menstruation. It is a symptom of different diseases, such as hormonal disturbances which range from pituitary to ovarian origin, as well as chromosomal abnormalities. Knowledge of the distinct cause of secondary amenorrhea is of tremendous benefit for the management and monitoring of patients...
متن کاملFrequency and the Type of Chromosomal Abnormalities in Patients with Primary Amenorrhea in Northeast of Iran
OBJECTIVE(S) Primary and secondary amenorrhea are different from each other in that the former refers to a physiological failure in the onset of spontaneous menarche during the time when it is expected. whereas the latter involves the cessation of normal menstruation any time prior to menopause. In this study we aimed to investigate chromosomal abnormalities in patients with Primary Amenorrhea ...
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BACKGROUND Androgen insensitivity syndrome (AIS) or testicular feminization is a partial or complete inability of cell response to androgen. The cause is enzymatic defect in synthesis of testosterone, resulting sexually immature phenotypically female, with primary amenorrhea. There are three categories of AIS, complete, partial and mild, depending on the degree of external genital masculinizati...
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