Recurrent Abortion
Mostrando 13-23 de 23 artigos, teses e dissertações.
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13. Paternal pericentric inversion of chromosome 4 as a cause of recurrent pregnancy loss.
A paternal pericentric inversion of chromosome 4 was ascertained through karyotype analysis of an abortus specimen proven to be 46,XX,rec(4),dup q, inv (4)(p13q28). The relationship of paternal pericentric inversion to pregnancy loss is discussed, and a recommendation for karyotype analysis of recurrent abortion specimens is made.
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14. Increased frequency of lymphocytic mitotic non-disjunction in recurrent spontaneous aborters.
Hypermodal chromosomal spreads occurred significantly more frequently in lymphocytes from couples with recurrent spontaneous abortion than from comparison populations. Previously, we reported a similarly increased frequency in couples with aneuploid offspring. Considering the frequency of aneuploidy among first trimester spontaneous abortions, we suggest tha
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15. Hla-Sharing, Recurrent Spontaneous Abortion, and the Genetic Hypothesis
A number of studies indicates that there is a high sharing of HLA antigens in couples having recurrent spontaneous abortions. The genetic hypothesis to explain this phenomenon suggests that this fetal loss results from homozygosity of recessive lethal or deleterious alleles in gametic disequilibrium with HLA antigens. Theory predicting the lethality rate is
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16. Proliferative responses to recall antigens are associated with pregnancy outcome in women with a history of recurrent spontaneous abortion.
Maternal tolerance of the fetal hemiallograft suggests that immunomodulation occurs during gestation. Therefore, recurrent spontaneous abortion (RSA) may represent a failure of the immune changes that maintain pregnancy. We hypothesized that fertile women but not women with RSA may lose their immune responses to recall antigens when pregnant. This phenomenon
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17. Serotypes of Ureaplasma urealyticum isolated from normal pregnant women and patients with pregnancy complications.
To compare the distribution of Ureaplasma urealyticum serotypes 1 to 10 in different patient populations, the serotypes of 240 U. urealyticum strains from 207 patients were determined by the indirect immunofluorescence test by using U. urealyticum antisera 1 to 10. Strains were obtained from the following four patient groups: group 1, 24 couples in which the
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18. Immunoadsorbent plasmapheresis for a patient with antiphospholipid syndrome during pregnancy.
The case of a 34 year old woman with systemic lupus erythematosus with a history of three previous recurrent abortions and lupus anticoagulant and anticardiolipin antibodies is reported. Immunoadsorbent plasmapheresis with a dextran sulphate column was used to remove lupus anticoagulant, anticardiolipin antibodies, and antibodies to DNA during her fourth pre
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19. Pregnancy after treatment with hydroxyurea in a patient with primary thrombocythaemia and a history of recurrent abortion.
A 28 year old patient with primary thrombocythaemia, who had had two stillbirths in the third trimester, is reported. She was successfully treated with hydroxyurea and delivered a healthy 6lb boy by elective caesarean section. The ease with which this treatment can be given, its high level of tolerance among patients, and its low cost are likely to increase
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20. Maternal uniparental disomy of chromosome 13 in a phenotypically normal child.
A case of maternal uniparental disomy of chromosome 13 is described. The subject is a phenotypically normal male who inherited a t(13;13)(p11.2;p11.2) from his mother who is a carrier of this translocation. The mother was ascertained through a history of recurrent abortion and is phenotypically normal. The translocation in both subjects was studied by cytoge
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21. Clinical aspects of Campylobacter jejuni infections in adults.
Campylobacter jejuni is an almost ubiquitous, microaerophilic, gram-negative rod. Outbreaks have been associated with drinking raw milk or contaminated water and eating poultry. Campylobacter jejuni accounts for 3.2% to 6.1% of cases of diarrheal illness in the general population of the United States, and infected patients frequently present with abdominal p
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22. Skewed X-Chromosome Inactivation Is Associated with Trisomy in Women Ascertained on the Basis of Recurrent Spontaneous Abortion or Chromosomally Abnormal Pregnancies
An increase in extremely skewed X-chromosome inactivation (XCI) (⩾90%) among women who experienced recurrent spontaneous abortion (RSA) has been previously reported. To further delineate the etiology of this association, we have evaluated XCI status in 207 women who experience RSA. A significant excess of trisomic losses was observed among the women who ha
The American Society of Human Genetics.
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23. Upper and lower neural tube defects: an alternate hypothesis.
It has been suggested that neural tube defects (NTDs) of the upper type (anencephaly, encephalocele, and thoracic spina bifida) may have a pathogenesis different from those of the lower type (lumbosacral spina bifida), since recurrent cases within a sibship were said always to be concordant with respect to NTD type. Also, spontaneous abortion, additional mal