scholarly journals Comparative cytogenetic analysis of early reproductive losses depending of maternal age

2018 ◽  
Vol 23 ◽  
pp. 226-231
Author(s):  
I. R. Tkach ◽  
N. L. Huleyuk ◽  
D. V. Zastavna ◽  
K. O. Sosnina ◽  
G. M. Bezkorovaina ◽  
...  
Keyword(s):  
Older Women ◽  
Maternal Age ◽  
Pregnancy Loss ◽  
Chorionic Villus ◽  
Human Reproduction ◽  
Intrauterine Development ◽  
Autosomal Trisomy ◽  
High Incidence ◽  
Reproductive Loss ◽  
Reproductive Losses

Aim. Human reproduction characterized by a high incidence of aneuploidies. Approximately 99 % of conceptions with anomalies of karyotype terminate of pregnancy loss, mainly during the first 14 weeks of intrauterine development. The frequency and spectrum of karyotype anomalies in the chorionic villus of early reproductive losses were studied depending of maternal age. Methods. Banding cytogenetic and interphase mFISH with the centromeric probe panel for chromosomes 13, 14, 15, 16, 17, 18, 21, 22, X and Y were used. Results. The contribution of different karyotype abnormalities in the genesis of the early reproductive losses depends on the age of the woman, namely, with age significantly increases the proportion of aneuploidy due to autosomal trisomies and reduced contribution of polyploidy and gonosomal monosomy. The main autosomal trisomy in the material of lost pregnancies from women under the age of 35 is 16, 21 and 15, 22, 13 and 18 in order of decreasing frequency, and from older women 16, 15, 22, 21, 13 and 14. Conclusions. The structure and rate of karyotype anomalies in the material of lost pregnancies varies with maternal age. Keywords: early reproductive loss, maternal age, karyotype abnormalities.

Dual and multiple trisomies: analysis of 38 cases from 13 thousand karyotyped embryos and fetuses

2017 ◽  
pp. 109-115
Author(s):  
N.P. Veropotvelyan ◽  
Keyword(s):  
Prenatal Diagnosis ◽  
High Risk ◽  
Pregnant Women ◽  
Maternal Age ◽  
Chromosomal Abnormalities ◽  
Chorionic Villus ◽  
Primary Group ◽  
Chorionic Villus Sampling ◽  
Missed Abortion ◽  
Reproductive Losses

The study presents data of different authors, as well as its own data on the frequency of multiple trisomies among the early reproductive losses in the I trimester of pregnancy and live fetuses in pregnant women at high risk of chromosomal abnormalities (CA) in I and II trimesters of gestation. The objective: determining the frequency of occurrence of double (DT) and multiple trisomies (MT) among the early reproductive losses in the I trimester of pregnancy and live fetuses in pregnant women at high risk of occurrence of HA in I and II trimesters of gestation; establishment of the most common combinations of diesel fuel and the timing of their deaths compared with single regular trisomy; comparative assessment materinskogo age with single, double and multiple trisomies. Patients and methods. During the period from 1997 to 2016, the first (primary) group of products in 1808 the concept of missed abortion (ST) of I trimester was formed from women who live in Dnepropetrovsk, Zaporozhye, Kirovograd, Cherkasy, Kherson, Mykolaiv regions. The average term of the ST was 8±3 weeks. The average age of women was 29±2 years. The second group (control) consisted of 1572 sample product concepts received during medical abortion in women (mostly residents of Krivoy Rog) in the period of 5-11 weeks of pregnancy, the average age was 32 years. The third group was made prenatally karyotyped fruits (n = 9689) pregnant women with high risk of HA of the above regions of Ukraine, directed the Centre to invasive prenatal diagnosis for individual indications: maternal age, changes in the fetus by ultrasound (characteristic malformations and echo markers HA) and high risk of HA on the results of the combined prenatal screening I and II trimesters. From 11 th to 14 th week of pregnancy, chorionic villus sampling was performed (n=1329), with the 16th week – platsentotsentez (n=2240), 18 th and 24 th week – amniocentesis (n=6120). Results. A comparative evaluation of maternal age and the prevalence anembriony among multiple trisomies. Analyzed 13,069 karyotyped embryonic and fetal I-II trimester of which have found 40 cases of multiple trisomies – 31 cases in the group in 1808 missed abortion (2.84% of total HA), 3 cases including 1 572 induced medabortov and 7 cases during 9689 prenatal research (0.51% of HA). Determined to share the double trisomies preembrionalny, fetal, early, middle and late periods of fetal development. Conclusion. There were no significant differences either in terms of destruction of single and multiple trisomies or in maternal age or in fractions anembrionalnyh pregnancies in these groups. Key words: multiple trisomies, double trisomy, missed abortion, prenatal diagnosis.

scholarly journals Factors Associated with Recent Increase of Multiple Births in Spain

2008 ◽  
Vol 11 (1) ◽  
pp. 70-76 ◽  
Author(s):  
Vicente Fuster ◽  
Pilar Zuluaga ◽  
Sonia Colantonio ◽  
Clemente de Blas
Keyword(s):  
Older Women ◽  
Maternal Age ◽  
Reference Group ◽  
Population Based ◽  
Factors Associated ◽  
Relative Contribution ◽  
High Incidence ◽  
Spanish Women ◽  
Opposite Sex ◽  
Mother’S Age

AbstractThe increased incidence of multiple deliveries in Spain, in addition to changes in age at maternity and parity, is attributed to assisted reproductive treatments, but the relative contribution of the latter to this rise remains uncertain, due to the scarce information provided by clinics practicing those treatments. Population based data (1984–2004), including information on mother's age, nationality, marital status, date of delivery, and the characteristics of each (parity, single or multiple), and sex of newborns were provided by the Spanish Institute of Statistics. Twinning and triplet deliveries relate to maternal age, parity, and nationality. For younger ages (≤ 19, 20–24, 25–29) rates remained constant over time, but for older women (30–34, 35–39, ≥ 40) rates increased after 1994. From 1984 to 2004 the percentage of twins of opposite sex increased from 24.31 to 36.58 per cent. Since 1997, Spanish and non-Spanish mothers differentiate with respect to multiple maternity at ages over 30. In addition to unmarried Spanish women, immigrants constitute a reliable reference group that determines the convenience of segregating information on multiple deliveries respecting origin. The proportion of twins and triplets of opposite sex, maternal age, and parity patterns observed are concordant with a differential access to reproductive treatments depending on the woman's age. The present norm regulating the maximum number of fertilizations per cycle and the demand for these treatments explain the high incidence of multiple deliveries in Spain. A modified logistic curve predicts a stabilization of multiple deliveries, which will probably continue to be high in Spain.

scholarly journals Chromosomal Aneuploidy Associated With Clinical Characteristics of Pregnancy Loss

2021 ◽  
Vol 12 ◽  
Author(s):  
Chongjuan Gu ◽  
Kuanrong Li ◽  
Ru Li ◽  
Ling Li ◽  
Xiaojun Li ◽  
...  
Keyword(s):  
Clinical Features ◽  
Maternal Age ◽  
Clinical Characteristics ◽  
Pregnancy Loss ◽  
Sex Chromosome ◽  
Yolk Sac ◽  
Chromosome Abnormalities ◽  
Autosomal Trisomy ◽  
Chromosomal Aneuploidy ◽  
Sex Chromosome Abnormalities

ObjectiveEmbryonic aneuploidy is found in about half of sporadic pregnancy losses and the associations between the chromosomal aneuploidy and clinical characteristics of pregnancy loss remain unclear. The aims of this study were to evaluate the associations between chromosomal aneuploidy of products of conception (POC) and clinical features of pregnancy loss.MethodsWe conducted a retrospective cohort study including 1,102 women experienced singleton pregnancy loss and underwent chromosomal microarray analysis (CMA) detection of POC in our hospital. The results of molecular karyotypes and clinical features including maternal age, history of pregnancy loss, gestational age, vaginal bleeding and ultrasonographic findings were extracted from the medical records. χ2 test was used to compare categorical data between groups.Results631 (57.26%) POC specimens were detected to be chromosomal aneuploidy. Aneuploid rates were significantly higher in women >35 years (P < 0.001) and pregnancy loss <11 gestational weeks (P = 0.044), but the rates of sex chromosome abnormalities and triploid were significantly higher in women ≤35 years (P < 0.001, P = 0.002) and the rates of viable autosomal trisomy and sex chromosome abnormalities were significantly high in those women with pregnancy loss ≥11 weeks (P < 0.001, P < 0.001). Aneuploid rate was overall similar between the sporadic and the recurrent pregnancy loss (RPL) (P = 0.404), but the rate of sex chromosome abnormalities was higher in women with sporadic pregnancy loss (P = 0.03). Aneuploid rates were higher in subjects with yolk sac or embryo than in those without (P < 0.001 and P = 0.001).ConclusionAdvanced maternal age is mainly associated with autosomal trisomy, while sex chromosome abnormalities and triploid might be more likely to occur in younger women. Aneuploidy rates might be no association with previous pregnancy loss except for sex chromosome abnormalities. Pregnancy loss without yolk sac or embryo might be less related to embryonic aneuploidy, and other factors should be emphasized.

scholarly journals Comprehensive analysis of early pregnancy loss based on cytogenetic findings from a tertiary referral center

2021 ◽  
Author(s):  
Xiaoqing wu ◽  
Linjuan Su ◽  
Xiaorui Xie ◽  
Deqin He ◽  
Xuemei Chen ◽  
...  
Keyword(s):  
Live Birth ◽  
Maternal Age ◽  
Pregnancy Loss ◽  
Chromosomal Abnormalities ◽  
Clinical Information ◽  
Comprehensive Analysis ◽  
Abnormal Karyotype ◽  
Birth History ◽  
Autosomal Trisomy ◽  
Natural Conception

Abstract Background Pregnancy loss is one of the most common complications during pregnancy. Clinical consultation and comprehensive understanding of the etiology are critical for reducing anxiety, distress, and depression. This study aimed to perform a comprehensive analysis for products of conception (POC) in miscarriage based on genetic etiology and clinical information. Methods Retrospective observation was performed on cytogenetic findings of 1252 POC form spontaneous pregnancy loss over an 11-year period. The frequencies and profiles of chromosomal abnormalities were discussed according to the classification of women with different maternal age, previous miscarriage history, normal live birth history, and different mode of conception. Results A total of 667 (53.2%) chromosomal abnormalities were observed, including 597 (47.7%) cases of numerical abnormalities, 33 (2.6%) cases of unbalanced structural abnormalities, 32 (2.6%) cases of mosaicism, and 5 (0.4%) cases of balanced rearrangement. In group of women above 40 years of age, the detection rates of chromosomal abnormalities and viable autosomal trisomy were significantly higher than those in groups of ≤ 29, 30 ~ 34, 35 ~ 39 years of age (p < 0.05). The detection rate of abnormal karyotype in women with normal live birth history was 61.1%, significantly higher than 52.5% in women without normal live birth history (p < 0.05). There was no significant difference among women without, with 1–2, and ≥ 3 previous miscarriages in the rate of abnormal karyotype (p > 0.05), and viable autosomal trisomy was less common in women with ≥ 3 previous miscarriages. The frequency of chromosomal abnormalities was 49.0% and 41.0% in women with assisted conception and natural conception (p > 0.05), respectively, and monosomy X was more frequently detected in women with natural conception. Conclusion The frequencies and profiles of chromosomal abnormalities in early miscarriages are strongly associated with clinical information including the maternal age, previous miscarriage, live birth history, and mode of conception. Even in women with a first miscarriage, or with a history of normal live births, chromosomal analysis of POC should be recommended for etiological assessment.

scholarly journals Telomere lengths in women with early reproductive losses

2019 ◽  
Vol 24 ◽  
pp. 202-207
Author(s):  
N. I. Huleyuk ◽  
D. V. Zastavna ◽  
M. Tyrka
Keyword(s):  
Older Women ◽  
Reproductive Function ◽  
Peripheral Blood Lymphocytes ◽  
Control Group ◽  
Healthy Children ◽  
Rt Pcr ◽  
Reproductive Loss ◽  
Reproductive Losses ◽  
History Of ◽  
Polymerase Chain

Aim. Study of the relative telomere lengths in women with a history of early reproductive losses. Methods. Relative Telomere Length (RTL) was studied in the peripheral blood lymphocytes using a real time polymerase chain reaction (RT-PCR). Results. RTL was studied in 281 women, among which 169 - with early reproductive losses (ERL) (surveyed group) and 112 - have healthy children and no reproductive losses in history (control group). For women under the age of 35, the average RTL value is significantly higher than that of older women, P = 0.003597. In women with ERL, RTL is significantly lower than that of women with a preserved reproductive function, P = 0.0000001. The value of RTL is significantly lower in women with ERL under 35 years compared with control, P = 0.0000001, and is similar to value of RTL in women in the control group at the age of 36, P> 0.05. Conclusions. The telomere lengths is significantly lower in both older women and women with ERL. The similarity of RTLvalue in women with ERL up to 35 years of age and in women with a preserved reproductive function at the age of 36 years testifies to the telomeric theory of reproductive aging. Keywords: telomeres, RT-PCR, women, age, early reproductive loss.

Heterotrisomy recurrence risk: a practical maternal age-dependent approach for excess trisomy 21 risk calculation after a previous autosomal trisomy

2016 ◽  
Vol 30 (13) ◽  
pp. 1613-1615
Author(s):  
Maribel Grande ◽  
Iosifina Stergiotou ◽  
Virginia Borobio ◽  
Joan Sabrià ◽  
Anna Soler ◽  
...  
Keyword(s):  
Trisomy 21 ◽  
Maternal Age ◽  
Recurrence Risk ◽  
Risk Calculation ◽  
Autosomal Trisomy ◽  
Age Dependent

Chromosome analyses in couples with repeated pregnancy loss

1982 ◽  
Vol 14 (1) ◽  
pp. 33-52 ◽  
Author(s):  
T. Andrews ◽  
D. F. Roberts
Keyword(s):  
Pregnancy Loss ◽  
Abnormal Karyotype ◽  
Control Series ◽  
Chromosome Anomalies ◽  
Reproductive Loss ◽  
Obvious Reason ◽  
Repeated Pregnancy Loss

SummaryCytogenetic investigations were undertaken on 120 couples in Newcastle with repeated pregnancy loss for which no anatomical or other obvious reason could be established. The level of major chromosome anomalies was high, with 6·7% of couples showing one member with an abnormal karyotype. One major anomaly occurred in a control series of 240 random newborns. The couples also showed an elevated incidence of chromosomal heteromorphisms. Similar studies in the literature are reviewed. It seems that major chromosome anomalies make an appreciable contribution to repeated reproductive loss, but proof of the involvement of minor chromosome variants though suspected is less clear.

scholarly journals Uncovering Prolonged Grief Reactions Subsequent to a Reproductive Loss: Implications for the Primary Care Provider

2021 ◽  
Vol 12 ◽  
Author(s):  
Kathryn R. Grauerholz ◽  
Shandeigh N. Berry ◽  
Rebecca M. Capuano ◽  
Jillian M. Early
Keyword(s):  
Mental Health ◽  
Primary Care ◽  
Pregnancy Loss ◽  
The United States ◽  
Time Span ◽  
Health Conditions ◽  
Relationship Problems ◽  
Mental Health Conditions ◽  
Reproductive Loss ◽  
Grief Reactions

IntroductionThere is a paucity of clinical guidelines for the routine assessment of maladaptive reproductive grief reactions in outpatient primary care and OB-GYN settings in the United States. Because of the disenfranchised nature of perinatal grief reactions, many clinicians may be apt to miss or dismiss a grief reaction that was not identified in the perinatal period. A significant number of those experiencing a reproductive loss exhibit signs of anxiety, depression, or post-traumatic stress disorder. Reproductive losses are typically screened for and recorded numerically as part of a woman’s well-visit intake, yet this process often fails to identify patients emotionally troubled by a prior pregnancy loss.Materials and MethodsA summative content analysis of 164 recent website blogs from female participants who self-reported having experienced a miscarriage or abortion in their lifetime was conducted. The narratives were reviewed for details regarding the time span between the pregnancy loss and the composition of the blog post. The stories were analyzed for subsequent relationship problems and detrimental mental health conditions. Maladaptive reactions were contrasted for those that indicated a greater than 12 months’ time-lapse and those who had not.ResultsMore than a third (39.6%) of the women reported in the narrative that at least one year or more had passed since experiencing the miscarriage or abortion. For those women, the median time span between the loss and composing the blog was 4 years with a range of 47 years. Mental health conditions attributed to the reproductive loss by those who reported longer bereavement times included subsequent relationship problems, substance misuse, depression, suicidal ideation, and PTSD. The percent of reported maladaptive issues was more than double (136.9% vs. 63.6%) for those who reported that a year or more had passed since the loss of the pregnancy.DiscussionGrief reactions following the loss of a pregnancy may be prolonged or delayed for several months which can contribute to adverse biopsychosocial outcomes. Recognition and treatment of maladaptive grief reactions following a pregnancy loss are critical. Screening methods should be enhanced for clinicians in medical office settings to help identify and expedite the appropriate mental health assistance.

scholarly journals Puzzle Out the Reason behind Habitual Miscarriage

2020 ◽  
pp. 92-98
Author(s):  
Waqas Ahmad ◽  
Shahid Bilal ◽  
Sarah Azhar ◽  
Muhammad Aitmaud Uddolah Khan ◽  
Nasima Iqbal ◽  
...  
Keyword(s):  
Risk Factors ◽  
Maternal Age ◽  
Pregnancy Loss ◽  
Recurrent Pregnancy Loss ◽  
Multinomial Logistic Regression ◽  
Strong Association ◽  
Multinomial Logistic Regression Model ◽  
Multiple Risk Factors ◽  
Bivariate Correlation ◽  
History Of

Aims: As no data is available in Pakistan so the aim of current study is to find out the link of multiple risk factors with recurrent pregnancy loss (RPL) in Pakistan. Study Design: Case control study. Place and Duration of Study: Study conducted in Obstetrics and Gynecology Clinic of Benazir Bhutto Hospital, Holy Family Hospital Rawalpindi and Polyclinic Hospital Islamabad from November 2018 to April 2019. Methodology: Subjects were investigated on the basis of an in depth Performa. For data analysis Statistical package for social sciences version-20 was used. Beside this, height in cm, weight in kg and blood pressure in mmHg were recorded. All the statistical calculations were performed by using SPSS 20. For association analysis of qualitative variables Spearman bivariate correlation was calculated while for numerical variables ANOVA was applied. Multinomial logistic regression model was used and the odd ratio and relative risk were calculated. Results: Among cases 91.34% were having spontaneous miscarriage and majority (64.86%) were during first trimester. Spearman bivariate correlation reported a strong association of recurrent pregnancy loss with the risk factors including family history, smoking, obesity, history of hypertension and history of diabetes, having highly significant p-values, on the hand, significant association of maternal age with the frequency of recurrent pregnancy loss was found but not with the paternal age and parity. The multinomial logistic regression model showed that smokers were19.012 times more prone to develop recurrent pregnancy loss. Conclusion: The multiple risk factors including maternal age, obesity, smoking, family history, body mass index, hypertension and diabetes have a strong association with the recurrent pregnancy loss. So keeping these risk factors in mind a careful evaluation of each pregnancy is necessary to reduce the risk of recurrent pregnancy loss.

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