Heterogeneity of nucleolar morphology in four‐cell mouse embryos after IVF: association with developmental potential DOI
Md. Wasim Bari,

Yoshiya Morishita,

Satoshi Kishigami

et al.

Animal Science Journal, Journal Year: 2023, Volume and Issue: 94(1)

Published: Jan. 1, 2023

In mammals, around fertilization, the nucleolus of embryos transforms into precursor bodies (NPBs), which continue to mature until blastocyst stage, leading distinct morphological changes. our study, we observed two types nucleolar morphology in mouse vitro fertilized at four-cell refer single (SN) and multiple nucleoli (MN). To visualize morphology, were immunostained with anti-NOPP140 antibody. These categorized five based on number blastomeres carrying SN: SN4/MN0, SN3/MN1, SN2/MN2, SN1/MN3, SN0/MN4, percentages 13, 27, 21, 23 9, respectively. Next, using a light microscope, divided without fixation groups: those least displaying SN (SN embryos) (MN embryos). Notably, significantly more developed blastocysts offspring 18.5 dpc compared MN embryos. Furthermore, displayed higher NANOG-positive cell lower body placental weights, resulting fetal/placental ratio. findings suggest close association between state stage subsequent developmental potential.

Language: Английский

Lithium Ions as Modulators of Complex Biological Processes: The Conundrum of Multiple Targets, Responsiveness and Non-Responsiveness, and the Potential to Prevent or Correct Dysregulation of Systems during Aging and in Disease DOI Creative Commons
David A. Hart

Biomolecules, Journal Year: 2024, Volume and Issue: 14(8), P. 905 - 905

Published: July 25, 2024

Lithium is one of the lightest elements on Earth and it has been in environment since formation galaxy. While a common element, not found to be an essential element biological processes, ranging from single cell organisms Homo sapiens. Instead, at early stage evolution, committed range such as sodium, potassium, calcium, magnesium, zinc, iron serve functions. Such ions critical functions ion channels, co-factors enzymes, cofactor oxygen transport, DNA replication, storage molecule bone liver, variety other roles processes. seemingly excluded major role lithium appear able modulate processes “correct” deviation normal activity, deficiency can have consequences. salts are low levels many foods water supplies, but effectiveness Li affect systems came recent prominence with work Cade, who reported that administrating calmed guinea pigs was subsequently effective relatively high doses “normalize” subset patients bipolar disorders. Because its ability pathways (e.g., cyclic AMP, GSK-3beta, inositol metabolism, NaK ATPases, neuro centers, immune-related events, respectively) both vitro vivo during development adult life, become useful tool better understand molecular regulation also provide insights into altered aging disease states. targets for action supports possible modulator dysregulation, presents conundrum researchers attempting elucidate specific primary target different tissues vivo. This review will discuss aspects state knowledge regarding some influenced, focusing those involving neural autoimmunity examples, mechanisms involved, examples how used study model systems, well suggesting areas where use could lead additional natural levels. In addition, caveats used, strengths weaknesses rodent models, background genetics strain mice or rats employed, sex animals cells discussed. Low-dose may excellent potential, alone combination interventions prevent alleviate aging-associated conditions progression.

Language: Английский

Citations

1

Developmental programming of reproduction and production in the offspring DOI
Vahid Akbarinejad, Robert A. Cushman

Animal Reproduction Science, Journal Year: 2024, Volume and Issue: 267, P. 107520 - 107520

Published: May 31, 2024

Language: Английский

Citations

0

Developmental programming of reproduction in sheep and goat: Association of fraternity size and sex ratio with reproductive performance of ewes and does at the first pregnancy DOI
Emadeddin Mobedi, Mehdi Vojgani,

Faramarz Gharagozlou

et al.

Animal Reproduction Science, Journal Year: 2024, Volume and Issue: 271, P. 107622 - 107622

Published: Oct. 25, 2024

Language: Английский

Citations

0

Early Cell Lineage Formation in Mammals: Complexity, Species Diversity, and Susceptibility to Disruptions Impacting Embryo Viability DOI Creative Commons
Keith E. Latham

Molecular Reproduction and Development, Journal Year: 2024, Volume and Issue: 91(10)

Published: Oct. 1, 2024

ABSTRACT The emergence of the earliest cell lineages in mammalian embryos is a complex process that utilizes an extensive network chromatin regulators, transcription factors, polarity and cellular signaling pathways. These factors pathways operate over protracted period time as cleave, undergo compaction, form blastocysts. first fate specification event separates pluripotent inner mass from trophectoderm lineage. second epiblast hypoblast. This review summarizes 50 years study these early lineage forming events, addressing complexity interacting molecules, functions drive them, interspecies differences, aspects mechanisms likely underlie their high susceptibility to disruption by numerous environmental can compromise embryo viability, such maternal health diet, toxins, other stressors.

Language: Английский

Citations

0

Intra‐uterine programming of future fertility DOI Creative Commons
Pascale Chavatte‐Palmer, Anne Couturier‐Tarrade, Delphine Rousseau‐Ralliard

et al.

Reproduction in Domestic Animals, Journal Year: 2023, Volume and Issue: 59(5)

Published: Nov. 9, 2023

Abstract The developmental origins of health and disease (DOHaD) shows that a relationship exists between parental environment at large, foeto‐placental development the risk for offspring to develop non‐transmittable disease(s) in adulthood. This concept has been validated both humans livestock. In mammals, after fertilization time spent free maternal reproductive tract, embryo develops placenta that, close with endometrium, is organ responsible exchanges dam foetus. Any modification can lead adaptive mechanisms affecting placental morphology, blood flow, foetal‐maternal (transporters) and/or endocrine function, ultimately modifying efficiency. Among deleterious environments, undernutrition, protein restriction, overnutrition, micronutrient deficiencies food contaminants be outlined. When capacities become insufficient, foetal growth formation no longer optimal, including gonadal maturation, which affect subsequent fertility. Since epigenetic have shown key programming, modifications gametes may also occur, leading inter‐generational effects. After briefly describing normal domestic species inter‐species differences, this review highlights current knowledge on intra‐uterine programming fertility focus animals underlines importance assess transgenerational effects when new breeding systems are developed face climate changes.

Language: Английский

Citations

1

Heterogeneity of nucleolar morphology in four‐cell mouse embryos after IVF: association with developmental potential DOI
Md. Wasim Bari,

Yoshiya Morishita,

Satoshi Kishigami

et al.

Animal Science Journal, Journal Year: 2023, Volume and Issue: 94(1)

Published: Jan. 1, 2023

In mammals, around fertilization, the nucleolus of embryos transforms into precursor bodies (NPBs), which continue to mature until blastocyst stage, leading distinct morphological changes. our study, we observed two types nucleolar morphology in mouse vitro fertilized at four-cell refer single (SN) and multiple nucleoli (MN). To visualize morphology, were immunostained with anti-NOPP140 antibody. These categorized five based on number blastomeres carrying SN: SN4/MN0, SN3/MN1, SN2/MN2, SN1/MN3, SN0/MN4, percentages 13, 27, 21, 23 9, respectively. Next, using a light microscope, divided without fixation groups: those least displaying SN (SN embryos) (MN embryos). Notably, significantly more developed blastocysts offspring 18.5 dpc compared MN embryos. Furthermore, displayed higher NANOG-positive cell lower body placental weights, resulting fetal/placental ratio. findings suggest close association between state stage subsequent developmental potential.

Language: Английский

Citations

0