The clinical significance of betaine, an osmolyte with a key role in methyl group metabolism

M Lever, S Slow - Clinical biochemistry, 2010 - Elsevier
Betaine is an essential osmolyte and source of methyl groups and comes from either the diet
or by the oxidation of choline. Its metabolism methylates homocysteine to methionine, also …

[HTML][HTML] Invited review: Management strategies capable of improving the reproductive performance of heat-stressed dairy cattle

VM Negrón-Pérez, DW Fausnacht, ML Rhoads - Journal of dairy science, 2019 - Elsevier
Impaired fertility during periods of heat stress is the culmination of numerous physiological
responses to heat stress, ranging from reduced estrus expression and altered follicular …

[HTML][HTML] Acute dietary zinc deficiency before conception compromises oocyte epigenetic programming and disrupts embryonic development

X Tian, FJ Diaz - Developmental biology, 2013 - Elsevier
Recent findings show that zinc is an important factor necessary for regulating the meiotic cell
cycle and ovulation. However, the role of zinc in promoting oocyte quality and …

Dynamic regulation of DNA methyltransferases in human oocytes and preimplantation embryos after assisted reproductive technologies

L Petrussa, H Van de Velde… - Molecular human …, 2014 - academic.oup.com
DNA methylation is a key epigenetic modification which is essential for normal embryonic
development. Major epigenetic reprogramming takes place during gametogenesis and in …

One-carbon metabolism and epigenetic regulation of embryo development

J Xu, KD Sinclair - Reproduction, Fertility and Development, 2015 - CSIRO Publishing
One-carbon (1C) metabolism consists of an integrated series of metabolic pathways that
include the folate cycle and methionine remethylation and trans-sulfuration pathways. Most …

Micro RNA‐29b regulates DNA methylation by targeting Dnmt3a/3b and Tet1/2/3 in porcine early embryo development

Z Zhang, Y Cao, Y Zhai, X Ma, X An… - Development, growth …, 2018 - Wiley Online Library
Micro RNA‐29b (miR‐29b) is a member of the miR‐29 family, which targets DNA
methyltransferases (DNMT s) and ten eleven translocation enzymes (TET s), thereby …

Dietary methionine supplementation during the estrous cycle improves follicular development and estrogen synthesis in rats

G Yang, S Li, S Cai, J Zhou, Q Ye, S Zhang, F Chen… - Food & Function, 2024 - pubs.rsc.org
The follicle is an important unit for the synthesis of steroid hormones and the oocyte
development and maturation in mammals. However, the effect of methionine supply on …

Both the folate cycle and betaine‐homocysteine methyltransferase contribute methyl groups for DNA methylation in mouse blastocysts

B Zhang, MM Denomme, CR White… - The FASEB …, 2015 - Wiley Online Library
The embryonic pattern of global DNA methylation is first established in the inner cell mass
(ICM) of the mouse blastocyst. The methyl donor S‐adenosylmethionine (SAM) is produced …

[HTML][HTML] Effects of choline on the phenotype of the cultured bovine preimplantation embryo

E Estrada-Cortés, VM Negrón-Peréz, P Tríbulo… - Journal of dairy …, 2020 - Elsevier
Choline is a precursor of acetylcholine, phosphatidylcholine, and the methyl-donor betaine.
Reports indicate that supplementation with rumen-protected choline improves postpartum …

Interspecific variation in one-carbon metabolism within the ovarian follicle, oocyte, and preimplantation embryo: consequences for epigenetic programming of DNA …

CE Clare, V Pestinger, WY Kwong, DAR Tutt… - International Journal of …, 2021 - mdpi.com
One-carbon (1C) metabolism provides methyl groups for the synthesis and/or methylation of
purines and pyrimidines, biogenic amines, proteins, and phospholipids. Our understanding …