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Intracytoplasmic sperm injection induces transgenerational abnormalities in mice.

ABSTRACT: In vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) are 2 major assisted reproductive techniques (ARTs) used widely to treat infertility. Recently, spermatogonial transplantation emerged as a new ART to restore fertility to young patients with cancer after cancer therapy. To examine the influence of germ cell manipulation on behavior of offspring, we produced F1 offspring by a combination of two ARTs, spermatogonial transplantation and ICSI. When these animals were compared with F1 offspring produced by ICSI using fresh wild-type sperm, not only spermatogonial transplantation-ICSI mice but also ICSI-only control mice exhibited behavioral abnormalities, which persisted in the F2 generation. Furthermore, although these F1 offspring appeared normal, F2 offspring produced by IVF using F1 sperm and wild-type oocytes showed various types of congenital abnormalities, including anophthalmia, hydrocephalus, and missing limbs. Therefore, ARTs can induce morphological and functional defects in mice, some of which become evident only after germline transmission.

SUBMITTER: Kanatsu-Shinohara M

PROVIDER: S-EPMC10645388 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature

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Intracytoplasmic sperm injection induces transgenerational abnormalities in mice.

Kanatsu-Shinohara Mito M Shiromoto Yusuke Y Ogonuki Narumi N Inoue Kimiko K Hattori Satoko S Miura Kento K Watanabe Naomi N Hasegawa Ayumi A Mochida Keiji K Yamamoto Takuya T Miyakawa Tsuyoshi T Ogura Atsuo A Shinohara Takashi T

The Journal of clinical investigation 20231115 22

In vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI) are 2 major assisted reproductive techniques (ARTs) used widely to treat infertility. Recently, spermatogonial transplantation emerged as a new ART to restore fertility to young patients with cancer after cancer therapy. To examine the influence of germ cell manipulation on behavior of offspring, we produced F1 offspring by a combination of two ARTs, spermatogonial transplantation and ICSI. When these animals were compared ...[more]

PMID: 37966118

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Project description:BackgroundWhile most research has focused on the association between intracytoplasmic sperm injection (ICSI) and neurodevelopmental disorders in children, relatively little attention has been given to its metabolic effects. Previous studies have reported that low serum lipid levels are associated with mental health problems. Our objective was to analyze the impact of ICSI on metabolic alterations compared to their in vitro fertilization (IVF) counterparts in male offspring, as well as its interaction with paternal overweight/obesity.MethodsWe recruited families between January 2006 and December 2017 at the Center for Reproductive Medicine, Shandong University, China. Prospective data of offspring were obtained for body mass index (BMI), blood pressure, glucose, and lipid profile in their 0-11 years old. Linear mixed models were utilized to compute the mean difference and 95% confidence intervals (CI).ResultsA total of 14,196 offspring visits were identified. In offspring aged 4-11 years, ICSI-conceived offspring exhibited significantly lower fasting glucose z-scores, total cholesterol z-scores, and low-density lipoprotein cholesterol (LDL-C) z-scores compared with their IVF counterparts (fasting glucose z-score: adjusted mean difference: - 0.13, 95% CI: - 0.23 to - 0.03; total cholesterol z-score: adjusted mean difference: - 0.13, 95% CI: - 0.23 to - 0.02; LDL-C z-score: adjusted mean difference: - 0.12, 95% CI: - 0.22 to - 0.01). Paternal overweight/obesity significantly influenced the relationship between ICSI and metabolic changes in offspring. In offspring born from fathers with overweight/obesity, ICSI-conceived offspring displayed significantly lower fasting glucose and total cholesterol z-scores than their IVF controls (fasting glucose z-score: adjusted mean difference: - 0.20, 95% CI: - 0.32 to - 0.08; total cholesterol z-score: adjusted mean difference: - 0.15, 95% CI: - 0.27 to - 0.02). In offspring born to fathers with normal weight, ICSI-conceived offspring showed significantly lower systolic blood pressure z-scores compared to those conceived via the IVF procedures (adjusted mean difference: - 0.21, 95% CI: - 0.37 to - 0.05).ConclusionsThe findings of this study suggested that ICSI was associated with altered glucose and lipid profiles compared to their IVF controls, characterized by lower fasting glucose z-scores, total cholesterol z-scores, and LDL-C z-scores. Encouraging fathers to reduce their body weight could potentially improve the metabolic health of their ICSI-conceived children.

Project description:ObjectiveTo compare cumulative live birth rate (CLBR) and cost-effectiveness of intracytoplasmic sperm injection (ICSI) vs. conventional in vitro fertilization (cIVF).DesignRetrospective cohort study of cycles reported to the Society for Assisted Reproductive Technology Clinic Outcomes Reporting System.SettingSociety for Assisted Reproductive Technology (SART) member IVF clinics in the United States.PatientsPatients with unexplained infertility who underwent first autologous retrieval cycles between January 2017 and December 2019 with linked fresh and frozen embryo transfers through December 2021.InterventionsICSI vs. cIVF.Main outcome measuresThe primary outcome was CLBR, defined as ≤1 live birth from a retrieval cycle and all linked embryo transfers. Secondary outcomes included two pronuclear (2PN) per oocyte retrieved, miscarriage rate, and total number of transferred or frozen embryos per 2PN. Subsamples with and without preimplantation genetic testing for aneuploidy (PGT-A) were analyzed. Outcomes were adjusted for age, body mass index, number of oocytes retrieved, length of follow-up, and clinic ICSI use rate.ResultsA total of 18,805 patients with unexplained infertility were included. No difference in CLBR was found among cycles without genetic testing (54.4% ICSI vs. 57.5% cIVF) and with PGT-A (47.6% ICSI vs. 51.8% cIVF). Intracytoplasmic sperm injection cycles without genetic testing had a higher miscarriage rate (16.4% vs. 14.4%) but no difference was seen in cycles with PGT-A (13.9% ICSI vs. 13.2% cIVF). Intracytoplasmic sperm injection cycles had a significantly lower ratio of 2PN per oocyte retrieved without genetic testing (59.7% vs. 60.9%) and with PGT-A (63.3% vs. 65.8%). The ratio of embryos transferred or frozen per 2PN was not significantly different in cycles without genetic testing (49.4% vs. 49.6%) or with PGT-A (54.2% vs. 55.2%). Total fertilization failure occurred in 216 patients (4%) who underwent cIVF and in 153 patients (1.1%) who used ICSI.Compared with cIVF alone, an estimated additional $11,011,500 was charged to patients for ICSI without genetic testing and $9,010,500 was charged to patients for ICSI with PGT-A over 2 years by Society for Assisted Reproductive Technology clinics. On the basis of total fertilization failure rates, 35 patients would require treatment with routine ICSI to avoid a single cycle of total fertilization failure with cIVF.ConclusionsRoutine use of ICSI in unexplained infertility is not warranted due to the additional cost and lack of CLBR benefit.

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Intracytoplasmic sperm injection induces transgenerational abnormalities in mice.

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Intracytoplasmic sperm injection induces transgenerational abnormalities in mice.

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