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Dietary folate deficiency in pseudopregnant mice has no effect on homeobox A10 promoter methylation or expression. 2012

Chunlan Long, and Junlin He, and Xueqing Liu, and Xuemei Chen, and Rufei Gao, and Yingxiong Wang, and Yubin Ding
Laboratory of Reproductive Biology, Chongqing Medical University, Chongqing, People's Republic of China.

During the reproductive cycle, a number of genes controlling endometrial changes are regulated by DNA methylation, a common epigenetic modification. Because dietary folate affects DNA methylation, we determined whether a folate-deficient diet (FDD) alters DNA methylation in endometria of pseudopregnant mice, focusing on the homeobox A10 (Hoxa10) promoter. Mice were given an FDD or control diet for 40 to 45 days and examined on day 5 of pseudopregnancy. Compared to control mice, FDD mice had lower folate levels in liver and serum (P = .004). However, the FDD did not significantly affect DNA methylation within the cytosine-guanine dinucleotide (CpG)-rich Hoxa10 promoter, even when specific CpG sites were examined (P > .05). In endometrial tissue sections, the localization of anti-Hoxa10 staining was unchanged in FDD mice. Therefore, folate deficiency did not significantly affect promoter methylation or expression of Hoxa10.

UI MeSH Term Description Entries
D008099 Liver A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances. Livers
D011401 Promoter Regions, Genetic DNA sequences which are recognized (directly or indirectly) and bound by a DNA-dependent RNA polymerase during the initiation of transcription. Highly conserved sequences within the promoter include the Pribnow box in bacteria and the TATA BOX in eukaryotes. rRNA Promoter,Early Promoters, Genetic,Late Promoters, Genetic,Middle Promoters, Genetic,Promoter Regions,Promoter, Genetic,Promotor Regions,Promotor, Genetic,Pseudopromoter, Genetic,Early Promoter, Genetic,Genetic Late Promoter,Genetic Middle Promoters,Genetic Promoter,Genetic Promoter Region,Genetic Promoter Regions,Genetic Promoters,Genetic Promotor,Genetic Promotors,Genetic Pseudopromoter,Genetic Pseudopromoters,Late Promoter, Genetic,Middle Promoter, Genetic,Promoter Region,Promoter Region, Genetic,Promoter, Genetic Early,Promoter, rRNA,Promoters, Genetic,Promoters, Genetic Middle,Promoters, rRNA,Promotor Region,Promotors, Genetic,Pseudopromoters, Genetic,Region, Genetic Promoter,Region, Promoter,Region, Promotor,Regions, Genetic Promoter,Regions, Promoter,Regions, Promotor,rRNA Promoters
D011555 Pseudopregnancy An acyclic state that resembles PREGNANCY in that there is no ovarian cycle, ESTROUS CYCLE, or MENSTRUAL CYCLE. Unlike pregnancy, there is no EMBRYO IMPLANTATION. Pseudopregnancy can be experimentally induced to form DECIDUOMA in the UTERUS. Pseudocyesis,Pseudopregnancies
D004032 Diet Regular course of eating and drinking adopted by a person or animal. Diets
D004717 Endometrium The mucous membrane lining of the uterine cavity that is hormonally responsive during the MENSTRUAL CYCLE and PREGNANCY. The endometrium undergoes cyclic changes that characterize MENSTRUATION. After successful FERTILIZATION, it serves to sustain the developing embryo. Endometria
D005260 Female Females
D005492 Folic Acid A member of the vitamin B family that stimulates the hematopoietic system. It is present in the liver and kidney and is found in mushrooms, spinach, yeast, green leaves, and grasses (POACEAE). Folic acid is used in the treatment and prevention of folate deficiencies and megaloblastic anemia. Pteroylglutamic Acid,Vitamin M,Folacin,Folate,Folic Acid, (D)-Isomer,Folic Acid, (DL)-Isomer,Folic Acid, Calcium Salt (1:1),Folic Acid, Monopotassium Salt,Folic Acid, Monosodium Salt,Folic Acid, Potassium Salt,Folic Acid, Sodium Salt,Folvite,Vitamin B9,B9, Vitamin
D005494 Folic Acid Deficiency A nutritional condition produced by a deficiency of FOLIC ACID in the diet. Many plant and animal tissues contain folic acid, abundant in green leafy vegetables, yeast, liver, and mushrooms but destroyed by long-term cooking. Alcohol interferes with its intermediate metabolism and absorption. Folic acid deficiency may develop in long-term anticonvulsant therapy or with use of oral contraceptives. This deficiency causes anemia, macrocytic anemia, and megaloblastic anemia. It is indistinguishable from vitamin B 12 deficiency in peripheral blood and bone marrow findings, but the neurologic lesions seen in B 12 deficiency do not occur. (Merck Manual, 16th ed) Deficiency, Folic Acid,Acid Deficiencies, Folic,Acid Deficiency, Folic,Deficiencies, Folic Acid,Folic Acid Deficiencies
D000080905 Homeobox A10 Proteins Sequence-specific transcription factor which is part of a developmental regulatory system that provides cells with specific positional identities on the anterior-posterior axis of tissues. They bind to the DNA sequence 5'-AA[AT]TTTTATTAC-3'. HOXA 10 Proteins,HOXA10 Proteins,Homeo Box A10 Proteins,Homeobox A10,10 Proteins, HOXA,A10 Proteins, Homeobox,A10, Homeobox,Proteins, HOXA 10,Proteins, HOXA10
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia

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