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PubMed1987

[Q-band chromosome polymorphism in couples with reproductive disorders].

A comparative analysis of Q-band polymorphisms was conducted in phenotypically normal individuals and couples with repeated spontaneous abortions. In the group of pathology reduction of the following phenomena was found: frequencies of brilliant fluorescence in bands 4p11q11, 14p11, 14p13, 15p11, 21p13; the mean numbers of the brilliant fluorescent segments per cell per individual; frequencies of extremely large ("marker") Q-bands. All these findings coincided with our earlier published data on reduction of the C-heterochromatin amount in the same group of pathology.

Abortion, Spontaneous↗
PubMed1987

[Quantitative analysis of C-segments of chromosomes 1, 9, 16 and Y in couples with reproductive disorders].

A comparative analysis of structural variability of C-bands on chromosomes 1, 9, 16 and Y was conducted in 50 phenotypically normal adults and 25 couples with repeated spontaneous abortions. Reduction of both the total amount of heterochromatin in the cell and the lengths of these regions on chromosomes 1, 9, and 16 is revealed in the group of pathology. No differences were found in the lengths of C-bands on Y chromosome.

Abortion, Habitual↗
PubMed1979

[Human chromosome polymorphism and disordered reproductive function. I. Routine chromosome variants].

Routine polymorphic variants of chromosomes of 58 married couples with reproductive failure (two or more spontaneous abortions, stillbirths and malformed children) and 48 control couples, having two or more normal children and no spontaneous abortions and stillbirths, were investigated by conventional staining technique. Extreme variants of chromosomes 1, 9, 16, 17, 13--15, 21--22 and Y were found in 17.2% of subjects with reproductive loss and in 15.6% of control individuals. No significant differences in frequencies of scored routine variants were noted between married couples with reproductive failure and couples with normal reproduction.

Abortion, Habitual↗