1
|
Melado L, Lawrenz B, Nogueira D, Raberi A, Patel R, Bayram A, Elkhatib I, Fatemi H. Features of chromosomal abnormalities in relation to consanguinity: analysis of 10,556 blastocysts from IVF/ICSI cycles with PGT-A from consanguineous and non-consanguineous couples. Sci Rep 2023; 13:8857. [PMID: 37258645 DOI: 10.1038/s41598-023-36014-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Accepted: 05/27/2023] [Indexed: 06/02/2023] Open
Abstract
Consanguineous marriage is defined as marriage between first or second-degree cousins, with high prevalence in many cultures and societies. Descendants from consanguineous unions have an increased risk for genetic diseases. Additionally, in consanguineous couples, chromosomal disjunction during embryogenesis could also be affected, increasing the risk of chromosomal errors. Nowadays, genomic testing allows to identify new genetic syndromes and variants related to copy-number variations (CNV), including whole chromosome, segmental and micro-segmental errors. This is the first study evaluating chromosomal ploidy status on blastocysts formed from consanguineous couples during IVF/ICSI treatments with Preimplantation Genetic Testing for Aneuploidies (PGT-A), compared to non-consanguineous couples. Although consanguine couples were significantly younger, no differences were observed between groups for fertilisation rate, blastulation rate and euploidy rate, once adjusted by age. Nevertheless, the number of blastocysts biopsied on day 5 was lower for consanguine couples. Segmental errors, and aneuploidies of chromosomes 13 and 14 were the most prominent abnormalities in relation to consanguinity, together with errors in chromosome 16 and sex chromosomes when the female partner was younger than 35. Once euploid blastocysts were considered for subsequent frozen embryo transfer, pregnancy outcomes were similar in both groups. The current findings point toward the fact that in consanguine unions, not only the risk of having a child with genetic disorders is increased, but also the risk of specific chromosomal abnormalities seems to be increased. Premarital counselling and tailored reproductive treatments should be offered to these couples.
Collapse
Affiliation(s)
- Laura Melado
- Medical Department, ART Fertility Clinics, Marina Village Villa B22 - 23, PO Box 60202, Abu Dhabi, UAE.
| | - Barbara Lawrenz
- Medical Department, ART Fertility Clinics, Marina Village Villa B22 - 23, PO Box 60202, Abu Dhabi, UAE
| | - Daniela Nogueira
- Medical Department, ART Fertility Clinics, Marina Village Villa B22 - 23, PO Box 60202, Abu Dhabi, UAE
- ART Fertility Clinics, Gurgaon, India
| | - Araz Raberi
- Medical Department, ART Fertility Clinics, Marina Village Villa B22 - 23, PO Box 60202, Abu Dhabi, UAE
| | | | - Asina Bayram
- Medical Department, ART Fertility Clinics, Marina Village Villa B22 - 23, PO Box 60202, Abu Dhabi, UAE
| | - Ibrahim Elkhatib
- Medical Department, ART Fertility Clinics, Marina Village Villa B22 - 23, PO Box 60202, Abu Dhabi, UAE
| | - Human Fatemi
- Medical Department, ART Fertility Clinics, Marina Village Villa B22 - 23, PO Box 60202, Abu Dhabi, UAE
| |
Collapse
|
2
|
Kotani T, Ushida T, Nakamura N, Imai K, Iitani Y, Tano S, Iwagaki S, Takahashi Y, Ito M, Hayakawa M, Kajiyama H. 5p deletion with congenital diaphragmatic hernia: a case report. J Med Case Rep 2022; 16:390. [PMID: 36261840 PMCID: PMC9580161 DOI: 10.1186/s13256-022-03579-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 08/19/2022] [Indexed: 11/18/2022] Open
Abstract
Background 5p deletion syndrome is known as cri-du-chat syndrome, but there are no reports on congenital diaphragmatic hernia complications associated with it. Case presentation A 28-year-old primigravida Japanese woman was referred for 5 mm of nuchal translucency. Fetal growth restriction was found at 20 weeks, and a left-sided congenital diaphragmatic hernia was diagnosed at 24 weeks. The karyotype of the fetus was diagnosed as 46, XX, del(5)(p14) and referred to our hospital. At 36 + 6 weeks, a 1524 g female infant was delivered after premature membrane rupture, with Apgar scores of 4 and 6 at 1 and 5 minutes, respectively. The baby was intubated immediately with sedation and muscle relaxation, after birth for initial treatment for congenital diaphragmatic hernia. The peripheral blood karyotype was consistent with the prenatal result. The infant was discharged alive, without any respiratory support, after the defect of the diaphragm was repaired. Conclusion The results of this study may be helpful for antenatal genetic counseling.
Collapse
Affiliation(s)
- Tomomi Kotani
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan. .,Division of Perinatology, Center for Maternal-Neonatal Care, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan.
| | - Takafumi Ushida
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Noriyuki Nakamura
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Kenji Imai
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan.,Division of Perinatology, Center for Maternal-Neonatal Care, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan
| | - Yukako Iitani
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Sho Tano
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| | - Shigenori Iwagaki
- Division of Fetal-Maternal Medicine, Gifu Prefectural General Medical Center, 4-6-1, Noishiki, Gifu, 500-8717, Japan
| | - Yuichiro Takahashi
- Division of Fetal-Maternal Medicine, Gifu Prefectural General Medical Center, 4-6-1, Noishiki, Gifu, 500-8717, Japan
| | - Miharu Ito
- Division of Neonatology, Center for Maternal-Neonatal Care, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan
| | - Masahiro Hayakawa
- Division of Neonatology, Center for Maternal-Neonatal Care, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Japan
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Japan
| |
Collapse
|