GEO DataSets

(Submitter supplied) Background: DNA methylation (DNAme) erasure and reacquisition occurs during prenatal male germ cell development; some further remodelling takes place after birth during spermatogenesis. Environmental insults during germline epigenetic reprogramming may affect DNAme, presenting a potential mechanism for transmission of environmental exposures across multiple generations. Objectives: We investigated how germ cell DNAme is impacted by lifetime exposures to diets containing either low or high, clinically relevant, levels of the methyl donor folic acid and whether resulting DNAme alterations were inherited in germ cells of male offspring of subsequent generations. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL17021

77 Samples

Download data: TXT

(Submitter supplied) This study examined the potential transgenerational actions of the herbicide atrazine. The F1 generation offspring (directly exposed as a fetus) derived from the F0 generation exposed gestating female rats did not develop disease, but weighed less compared to controls. The F2 generation (grand-offspring) was found to have increased frequency of testis disease, increased frequency of tumor development in males and females (predominately mammary tumors), early onset puberty in males, and decreased body weight in females compared to controls. more...

Organism:

Rattus norvegicus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL18694

80 Samples

Download data: CSV

(Submitter supplied) Study question: Do short-term and long-term exposures to low dose folic acid supplementation alter DNA methylation in sperm? Summary answer: No alterations in sperm DNA methylation patterns were found following the administration of low dose folic acid supplements of 400 μg/day for 90 days (short-term exposure) or when pre-fortification of food with folic acid and post-fortification sperm samples (long-term exposure) were compared. more...

Organism:

Homo sapiens

Type:

Methylation profiling by genome tiling array

Platform:

GPL13534

46 Samples

Download data: TXT

(Submitter supplied) 5, 10-Methylenetetrahydrofolate reductase (MTHFR) is a crucial enzyme in the folate metabolic pathway with a key role in generating methyl groups. As MTHFR deficiency impacts male fertility and sperm DNA methylation, there is the potential for epimutations to be passed to the next generation. Here, we assessed whether the impact of MTHFR deficiency on testis morphology and sperm DNA methylation is exacerbated across generations. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL17021

21 Samples

Download data: TXT

(Submitter supplied) Environmental factors have been shown to induce the epigenetic transgenerational inheritance of disease through the germline. This study was designed to investigate DDT induced concurrent alterations of a number of different epigenetic processes including DNA methylation and histone retention in sperm. Gestating female rats were exposed transiently to DDT during fetal gonadal development and then F1, F2 and F3 generation sperm were analyzed.

Organism:

Rattus norvegicus

Type:

Genome binding/occupancy profiling by high throughput sequencing; Methylation profiling by high throughput sequencing

Platform:

GPL18694

30 Samples

Download data: CSV

(Submitter supplied) Female and male rats of an outbred female Sprague Dawley rats were administered daily intraperitoneal injections of vinclozolin (100 mg/kg BW/day), or DDT (25 mg/kg BW/day) or dimethyl sulfoxide (DMSO) in oil (1 µl/kg BW/day vehicle). Treatment lineages are designated “control” or “vinclozolin” or “DDT” lineages. The gestating female rats treated were designated as the F0 generation. The offspring of the F0 generation rats were the F1. more...

Organism:

Rattus norvegicus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL18694

23 Samples

Download data: CSV

(Submitter supplied) We hypothesized that the availability of folate, a soluble B vitamin, would alter the levels of DNA methylation in spermatogenesis with consequences for the sperm epigenome and pregnancy outcomes. We fed male mice with either a folate-deficient or a folate-sufficient diet throughout life. Males fed the folate-deficient diet had offspring with increased birth defects, which included craniofacial and musculoskeletal malformations. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL10787

8 Samples

Download data: TXT

(Submitter supplied) Preterm birth (PTB), spontaneous parturition prior to 37 weeks gestation, is the leading cause of neonatal mortality. We previously demonstrated that developmental exposure of male mice (F1 animals) to the environmental endocrine disruptor 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) was associated with reduced sperm quantity/quality in adulthood and their control mating partners frequently delivered preterm. more...

Organism:

Mus musculus

Type:

Methylation profiling by genome tiling array

Platform:

GPL10324

8 Samples

Download data: TXT

(Submitter supplied) Spermatogonial stem cell transplantation (SSCT) is proposed as a fertility therapy for childhood cancer survivors. SSCT starts with cryopreserving a testicular biopsy prior to gonadotoxic treatments such as cancer treatments. When the childhood cancer survivor reaches adulthood and desires biological children, the biopsy is thawed and SSCs are propagated in vitro and subsequently auto-transplanted back into their testis. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL21493

26 Samples

Download data: TSV

(Submitter supplied) The dynamic patterning of DNA and histone methylation during oocyte development presents a potentially susceptible time for epigenetic disruption due to early life environmental exposure of future mothers. We investigated whether maternal exposure to folic acid deficient (FD) and supplemented (FS) diets starting in utero could affect oocytes and cause adverse developmental and epigenetic effects in next generation progeny. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL13112

45 Samples

Download data: TXT

(Submitter supplied) Parental environmental exposures can strongly influence descendant risks for adult disease. Metabolic disorders arise from the intersection of environmental and genetic risk factors, with epigenetic inheritance being at the center of the familial cycle of transgenerational disease. How paternal high-fat diet changes the sperm chromatin leading to the acquisition of metabolic disease in offspring remains controversial and ill-defined. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL21103 GPL24247

75 Samples

Download data: BW, GTF

(Submitter supplied) STUDY QUESTION: Could clinically-relevant moderate and/or high dose maternal folic acid supplementation prevent aberrant developmental and epigenetic outcomes associated with assisted reproductive technologies (ART)? SUMMARY ANSWER: Our results demonstrate dose-dependent and sex-specific effects of folic acid supplementation in ART and provide evidence that moderate dose supplements may be optimal for both sexes. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL13112

84 Samples

Download data: TXT

(Submitter supplied) In previous studies, the pesticide DDT was shown to promote the transgenerational inheritance of sperm differential DNA methylation regions (DMRs), also called epimutations, which can mediate this epigenetic inheritance. In the current study, the developmental origins of the transgenerational DMRs during gametogenesis have been investigated. Male control and DDT lineage F3 generation rats were used to isolate embryonic day 16 (E16) prospermatogonia, postnatal day 10 (P10) spermatogonia, adult pachytene spermatocytes, round spermatids, caput epididymal spermatozoa, and caudal sperm. more...

Organism:

Rattus norvegicus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL18694

36 Samples

Download data: CSV

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL21103

18 Samples

Download data: BEDGRAPH

(Submitter supplied) The environmental factors such as pesticides could affect the developmental processes and cause the phenotypic changes. Moreover, the changes could be transferred to a subsequent generation via gametes. In this project we studied whether the pesticide chlordecone could cause the developmental effects and cause the transgenerational inheritance in outbred mouse strain. Mice were treated during development at dose 100 µg/kg/day and the progeny of exposed mice were crossed for three generations. more...

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL21103

9 Samples

Download data: BEDGRAPH

(Submitter supplied) RNA seq project designed to understand the role of pesticide on transription of mRNA in the testis. We treated adult female mice with chlordecone with doses 0 (control), 100 Xg/kg/day and 1 mg/kg/day during gestation period E6- E15. Male born from Chlordecone- treated mice were crossed for a three generations. The testes from F3 generations were taken for mRNA extraction. For mRNA extraction we used columb. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21103

9 Samples

Download data: BEDGRAPH

(Submitter supplied) Environmental compounds including fungicides, plastics, pesticides, dioxin and hydrocarbons can promote the epigenetic transgenerational inheritance of adult-onset disease in future generation progeny following ancestral exposure during the critical period of fetal gonadal sex determination. This study examined the actions of the pesticide methoxychlor to promote the epigenetic transgenerational inheritance of adult-onset disease and associated differential DNA methylation regions (i.e. more...

Organism:

Rattus norvegicus

Type:

Methylation profiling by genome tiling array

Platform:

GPL18610

3 Samples

Download data: CSV, XYS

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Methylation profiling by genome tiling array; Methylation profiling by high throughput sequencing

Platform:

GPL24247

24 Samples

Download data: TXT

(Submitter supplied) 5,10-Methylenetetrahydrofolate reductase (MTHFR) is an enzyme that plays a key role in providing methyl groups for DNA methylation, including during spermatogenesis. A common genetic variant in humans (MTHFR 677C>T), results in reduced enzyme activity and has been linked to various disorders, including male infertility. A new animal model has been created by reproducing the human equivalent of the polymorphism in mice using CRISPR/Cas9. more...

Organism:

Mus musculus

Type:

Methylation profiling by high throughput sequencing

Platform:

GPL24247

24 Samples

Download data: TXT

(Submitter supplied) Environmental factors during fetal development can induce a permanent epigenetic change in the germ line (sperm) that then transmits epigenetic transgenerational inheritance of adult-onset disease in the absence of any subsequent exposure. The epigenetic transgenerational actions of various environmental compounds and relevant mixtures were investigated with the use of a pesticide mixture (permethrin and insect repellant DEET), a plastic mixture (bisphenol A and phthalates), dioxin (TCDD) and a hydrocarbon mixture (jet fuel, JP8). more...

Organism:

Rattus norvegicus

Type:

Methylation profiling by genome tiling array

Platform:

GPL18610

15 Samples

Download data: CSV, GFF, PAIR