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Fully grown oocytes have the natural ability to transform 2 terminally differentiated gametes into a totipotent zygote representing the acquisition of totipotency. This process wholly depends on maternal-effect factors (MFs). MFs stored in the eggs are therefore likely to be able to induce cellular reprogramming to a totipotency state. Here we report the generation of totipotent-like stem cells from mESCs using 4MFs Hsf1 , Zar1 , Padi6 , and Npm2 , designated as MFiTLSCs. MFiTLSCs exhibited a unique and inherent capability to differentiate into embryonic and extraembryonic derivatives. Transcriptomic analysis revealed that MFiTLSCs are enriched with 2-cell-specific genes that appear to synergistically induce a transcriptional repressive state, in that parental genomes are remodeled to a poised transcriptional repression state while totipotency is established following fertilization. This method to derive MFiTLSCs could help advance the understanding of fate determinations of totipotent stem cells in a physiological context and establish a foundation for the development of oocyte biology-based reprogramming technology. [ABSTRACT FROM AUTHOR]

Aim: This Study Aimed to Assess the Intention to Have a Third Child among Millennial Parents (25–40 years old) with Two Children in a City in Eastern China and to Explore the Influencing Factors Related to Fertility Intention. Design: A cross‐sectional design study. Methods: A convenience sampling method was used to enrol participants of childbearing age who visited two tertiary hospitals in Hang zhou, a city in eastern China, from June 2021 to March 2022. We conducted a face‐to‐face questionnaire survey with 520 participants and calculated the prevalence of intention‐related factors. Multivariate logistic regression was used to analyse the independent influencing factors of fertility intention. Results: In total, 105 (20.2%) participants had the intention to have a third child. The results showed that 'employment status', 'age', 'reasons for wanting a third child', the considered 'biggest barrier to having a third child', 'views on the three‐child policy', 'desired free services', 'supporting work policies' and 'assistance policies' were significant independent influencing factors of intention to have a third child (p‐value < 0.05). The intention of the participants 'over 30 years old' was 2.466 times that of those '30 years old and under', and 'older age/personal health status' was considered the 'biggest barrier to having a third child'. Regarding policy and social reasons, the participants who need 'medical assistance' policy negatively affect the intention to have a third child (OR = 0.453, 95% CI = 0.247–0.830). Implications for Healthcare/Nursing: Nursing plays an important role in health promotion. Nurses can help couples make wise decisions about fertility by providing professional consultation, education, evaluation and support. They can also provide corresponding nursing and guidance to improve couples' health quality and overall reproductive success. Conclusions: The general level of intention to have a third child of Millennial parents with two children is still low. The participants who are 'housewives/househusbands', 'over 30 years old', and satisfied with the state of 'medical assistance' have higher fertility intentions. Patient or Public Contribution: It is particularly meaningful for the policymakers to improve the social support system and raise universal awareness to encourage childbirth. [ABSTRACT FROM AUTHOR]

Objective To study the repair function and mechanism of TRPM7 interference vector in hypoxic myocardial cell line (H9C2). Methods The hypoxia/reoxygenation model of H9C2 cardiomyocytes was established and the TRPM7 interference expression vector was constructed to transfect H9C2 cells. The expression of HIF1-α and TRPM7 in H9C2 cells was detected by RT-qPCR and Western blot. [Ca2+]i and apoptosis was determined by flow cytometry. Results When H9C2 cells were transfected with TRPM7 interference vector, the expression of HIF1-α TTRPM7, the [Ca2+]i concentration and the apoptosis rate all decreased. Conclusions TRPM7 interference vector has significant repairing effect on hypoxia H9C2 cardiomyocytes, and the mechanism may be mediated PI3K/Akt pathway.