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Translocation recurrent miscarriage

Rola F Turki, Mourad Assidi, Huda A Banni, Hanan A Zahed, Sajjad Karim, Hans-Juergen Schulten, Muhammad Abu-Elmagd, Abdulrahim A Rouzi, Osama Bajouh, Hassan S Jamal, Mohammed H Al-Qahtani, Adel M Abuzenadah
BACKGROUND: Recurrent pregnancy loss (RPL) or recurrent spontaneous abortion is an obstetric complication that affects couples at reproductive age. Previous reports documented a clear relationship between parents with chromosomal abnormalities and both recurrent miscarriages and infertility. However, limited data is available from the Arabian Peninsula which is known by higher rates of consanguineous marriages. The main goal of this study was to determine the prevalence of chromosomal abnormalities and thrombophilic polymorphisms, and to correlate them with RPL and consanguinity in Saudi Arabia...
October 10, 2016: BMC Medical Genetics
Jyotsna Pundir, Laurice Magdalani, Tarek El-Toukhy
OBJECTIVE: To assess PGD outcome using FISH analysis in couples with a history of recurrent miscarriage associated with a parental carrier of reciprocal translocation. STUDY DESIGN: Couples in whom one partner was a carrier of a reciprocal translocation and had a history of two or more miscarriages and a low risk of a live born offspring with an unbalanced chromosomal rearrangement, underwent PGD treatment between 2000 and 2012. RESULTS: 91 couples started 171 fresh and 11 frozen PGD cycles...
August 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Keiichi Kato, Naoki Aoyama, Nami Kawasaki, Hiroko Hayashi, Tang Xiaohui, Takashi Abe, Tomoko Kuroda
Forty-six reciprocal and six Robertsonian translocation carrier couples who experienced recurrent pregnancy loss underwent fluorescence in situ hybridization-based preimplantation genetic diagnosis (PGD) for the presence of the two translocated chromosomes. Out of 52 couples, 17 (33%) were undergoing infertility treatment. In total, 239 PGD cycles as oocyte retrieval (OR) were applied. The transferrable rate of negatively diagnosed embryos at the cleavage stage was 26.3%; 71 embryos were transferred as single blastocysts...
August 2016: Journal of Human Genetics
Jiansheng Zhu, Hui Liu, Junxiang Tang, Muhammad Riaz Khan, Baolong Wang, Ihtisham Bukhari
BACKGROUND: Chromosomal abnormalities are the most common cause of recurrent abortions and miscarriages (RAM), but micro-variations on chromosomes causing RAM have never been previously studied. Single nucleotide polymorphisms (SNPs) are the single nucleotide variations frequently present at genome with the density of at least one common (>20% allele frequency) SNP per kilobase pair. It has already been reported that SNP array examination for chromosomal abnormalities has better performance than the conventional cytogenetic karyotyping...
2016: British Journal of Biomedical Science
H L Wang, B Wu, K M Guo, R H Tian
Infertility as a psychological problem has gained increasing attention. Male partners among infertile couples have elevated levels of psychological distress, which could affect semen quality, result in hormonal abnormalities, and increase the occurrence of early miscarriage. Infertile women are more vulnerable to psychological distress and require psychological support. Subfertile women who conceive after assisted reproduction have higher stress, anxiety, and depression levels. Psychological interventions have been shown to have beneficial effects on infertility patients...
2016: Genetics and Molecular Research: GMR
Jiandong Shen, Wei Wu, Chao Gao, Humphrey Ochin, Dianyun Qu, Jiazi Xie, Li Gao, Yadong Zhou, Yugui Cui, Jiayin Liu
BACKGROUND: About 10 -15 % of all clinically recognized pregnancies result in spontaneous miscarriages, and chromosomal abnormalities are the most common reason. The conventional karyotyping on chorionic villus samples (CVSs) is limited by cell culture and its resolution. This study aimed at evaluating the efficiency of the application of high throughput genetic technology, including array comparative genomic hybridization (array CGH) and next generation sequencing (NGS) on the chromosomal copy number analysis of CVSs from early spontaneous miscarriages...
2016: Molecular Cytogenetics
Fu-Ju Tian, Chuan-Mei Qin, Xiao-Cui Li, Fan Wu, Xiao-Rui Liu, Wang-Ming Xu, Yi Lin
Fetal trophoblasts invade endometrium and establish a complex interaction with the maternal microenvironment during early pregnancy. However, the molecular mechanisms regulating trophoblast migration and invasion at the maternal-fetal interface remain poorly understood. Immunohistochemistry and immunoblotting have shown that stathmin-1 (STMN1) was down-regulated significantly in placental villi tissue and trophoblasts from patients with recurrent miscarriage. In vitro, overexpression of STMN1 promoted human trophoblast proliferation, migration, and invasion, whereas knockdown of STMN1 inhibited these processes...
October 2015: American Journal of Pathology
Shinichiro Ikuma, Takeshi Sato, Mayumi Sugiura-Ogasawara, Motoi Nagayoshi, Atsushi Tanaka, Satoru Takeda
BACKGROUND: Established causes of recurrent pregnancy loss (RPL) include antiphospholipid syndrome, uterine anomalies, parental chromosomal abnormalities, particularly translocations, and abnormal embryonic karyotypes. The number of centers performing preimplantation genetic diagnosis (PGD) for patients with translocations has steadily increased worldwide. The live birth rate with PGD was reported to be 27-54%. The live birth rate with natural conception was reported to be 37-63% on the first trial and 65-83% cumulatively...
2015: PloS One
Alexandre Rouen, Alinoë Lavillaureix, Capucine Hyon, Solveig Heide, Sylvain Clède, Richard Balet, Esther Kott, Nino Guy Cassuto, Jean-Pierre Siffroi
While chromosomal translocations are usually associated with a normal phenotype, they can still cause male infertility as well as recurrent miscarriages and fetal malformations related to their transmission in an unbalanced state. The distinction between balanced and unbalanced spermatozoa on morphological criteria is still unfeasible. However, we previously showed that: i) spermatozoa with an unbalanced content have a higher rate of DNA fragmentation; and ii) that density gradient centrifugation partially separates balanced from unbalanced sperm cells...
March 2015: Reproductive Biomedicine Online
Mayumi Sugiura-Ogasawara
Recurrent pregnancy loss (RPL) was defined as two or more miscarriages. Antiphospholipid syndrome, uterine anomalies, and parental chromosomal abnormalities, particularly translocation and abnormal embryonic karyotype, are identifiable causes of RPL. Obesity may increase the risk of sporadic miscarriage in pregnancies conceived spontaneously. Obesity with body mass index (BMI)>30 kg/m2 is an independent risk factor for further miscarriage with odds ratio 1.7-3.5 in patients with early RPL. Obesity is associated with euploid miscarriage...
May 2015: Best Practice & Research. Clinical Obstetrics & Gynaecology
Eriko Asano, Takeshi Ebara, Chisato Yamada-Namikawa, Tamao Kitaori, Nobuhiro Suzumori, Kinue Katano, Yasuhiko Ozaki, Makoto Nakanishi, Mayumi Sugiura-Ogasawara
BACKGROUND: Established causes of recurrent pregnancy loss (RPL) include antiphospholipid syndrome, uterine anomalies, parental chromosomal abnormalities, particularly translocations and abnormal embryonic karyotype. A systematic review concluded that coagulation factor XII (FXII) deficiency was associated with RPL. However, it could not be established whether the 46 C/T SNP of FXII or low activity of FXII was a risk factor for RPL, because of the small sample size. METHODS AND FINDINGS: We conducted a cross-sectional and cohort study in 279 patients with two or more unexplained consecutive pregnancy losses and 100 fertile women...
2014: PloS One
G De Krom, Y H J M Arens, E Coonen, C M A Van Ravenswaaij-Arts, M Meijer-Hoogeveen, J L H Evers, R J T Van Golde, C E M De Die-Smulders
STUDY QUESTION: Do clinical characteristics of recurrent miscarriage couples with a chromosomal abnormality and who opt for PGD differ from couples that decline PGD after extensive genetic counselling? SUMMARY ANSWER: No differences in clinical characteristics are identified between recurrent miscarriage couples carrying a structural chromosomal abnormality who opt for PGD compared with those that decline PGD after extensive genetic counselling. WHAT IS KNOWN ALREADY: Couples who have experienced two or more miscarriages (recurrent miscarriage) are at increased recurrence risk if one of the partners carries a structural chromosomal abnormality...
February 2015: Human Reproduction
Mohammad Hasanzadeh-NazarAbadi, Fatemeh Baghbani, Iman Namazi, Salmeh Mirzaee
BACKGROUND: Approximately 205 million pregnancies occur each year in the worldwide. On the other hand, Spontaneous abortion has been reported in 15-20% of all diagnosed pregnancies. The most common cause of spontaneous abortion is chromosomal abnormalities of the embryo. Robertsonian translocation carriers specially 21-14 are the most common balanced rearrangement among the carrier couples with the history of spontaneous abortion. In order to search for balanced chromosomal rearrangement and cytogenetic disorders, 10 members of related family with consanguinity marriage with the history of recurrent miscarriage were assessed...
August 2014: Iranian Journal of Reproductive Medicine
Alina Teresa Midro, Barbara Panasiuk, Beata Stasiewicz-Jarocka, Marta Olszewska, Ewa Wiland, Marta Myśliwiec, Maciej Kurpisz, Lisa G Shaffer, Marzena Gajecka
Cumulative data obtained from two relatively large pedigrees of a unique reciprocal chromosomal translocation (RCT) t(1;11)(p36.22;q12.2) ascertained by three miscarriages (pedigree 1) and the birth of newborn with hydrocephalus and myelomeningocele (pedigree 2) were used to estimate recurrence risks for different pregnancy outcomes. Submicroscopic molecular characterization by fluorescent in situ hybridization (FISH) of RCT break points in representative carriers showed similar rearrangements in both families...
December 2014: Journal of Human Genetics
Alexia Chatziparasidou, Martine Nijs, Martha Moisidou, Oraiopoulou Chara, Christina Ioakeimidou, Christos Pappas, Nicos Christoforidis
BACKGROUND: Low (or poor) responder patients are women who require large doses of stimulation medications and produce less than an optimal number of oocytes during IVF cycles. Low responder patients produce few oocytes and embryos, which significantly reduces their chances for success in a preimplantation genetic diagnosis (PGD) cycle. Accumulation of vitrified oocytes or embryos before the actual PGD cycle is a possible strategy that might increase patient's chances for a healthy pregnancy...
2013: F1000Research
Eftychia Dimitriadou, Niels Van der Aa, Jiqiu Cheng, Thierry Voet, Joris R Vermeesch
BACKGROUND: Carriers of balanced translocations are at high risk for unbalanced gametes which can result in recurrent miscarriages or birth defects. Preimplantation genetic diagnosis (PGD) is often offered to select balanced embryos. This selection is currently mainly performed by array CGH on blastomeres. Current methodology does not take into account the phase of the cell cycle, despite the variable copy number status of different genomic regions in S phase. RESULTS: Cell lines derived from 3 patients with different chromosomal imbalances were used to evaluate the accuracy of single cell array CGH...
2014: Molecular Cytogenetics
S Zhang, L Gao, Y Liu, J Tan, Y Wang, R Zhang, Y Liu, H Chen, J Zhang
PURPOSE: The purpose of this study was to evaluate the relationship between fetal karyotype and parental chromosomal abnormalities, and assess the long-term reproductive outcomes in couples with recurrent miscarriages (RM). MATERIALS AND METHODS: The reproductive outcomes of 34 couples with abnormal karyotypes and RM were investigated. Ultrasound examinations were performed during pregnancy, fetal karyotypes were determined following miscarriages, and successful pregnancy outcomes were recorded...
2014: Clinical and Experimental Obstetrics & Gynecology
Lin Li, Haixiao Chen, Chenxing Yin, Chuanchun Yang, Bei Wang, Shuqi Zheng, Jixia Zhang, Wufang Fan
It is widely accepted that the incidence of chromosomal aberration is 10-15.2% in the azoospermic male; however, the exact genetic damages are currently unknown for more than 40% of azoospermia. To elucidate the causative gene defects, we used the next generation sequencing (NGS) to map the breakpoints of a chromosome insertion from an azoospermic male who carries a balanced, maternally inherited karyotype 46, XY, inv ins (18,7) (q22.1; q36.2q21.11). The analysis revealed that the breakage in chromosome 7 disrupts two genes, dipeptidyl aminopeptidase-like protein 6 (DPP6) and contactin-associated protein-like 2 (CACNA2D1), the former participates in regulation of voltage-gated potassium channels, and the latter is one of the components in voltage-gated calcium channels...
August 15, 2014: Gene
Usha R Dutta, Rajitha Ponnala, Ashwin Dalal
BACKGROUND: Recurrent miscarriage is a major concern in the couples with reproductive problems. The chromosomal abnormalities, mainly balanced rearrangements are reported in variable phenotypes and the prevalence of them is 2-8% in such couples. CASE PRESENTATION: In this study, the clinical, cytogenetic and molecular cytogenetic evaluations were performed on a couple with RM. The cytogenetic analysis of the husband revealed a balanced reciprocal translocation of t(18;22)(q21...
April 2014: Journal of Reproduction & Infertility
Christina B Ching, Edmund Ko, Bryan Hecht, Marissa Smith, Edmund Sabanegh
INTRODUCTION: Balanced chromosomal translocations are a relatively common (2-7%) finding among infertile couples. We report clinical features of males with translocations at our institution. MATERIALS AND METHODS: Data was collected on men presenting for infertility evaluation between July 2006 March 2010, including presentation, medical history, and infertility treatments. Criteria for genetic evaluation, consisting of karyotype and Y-linked microdeletion assay, included severe oligozoospermia or azoospermia (sperm concentration < 2...
May 2012: Current Urology
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