Atsuo Ogura

Paternal expression of a novel imprinted gene, Peg12/Frat3, in the mouse 7C region homologous to the Prader-Willi syndrome region.

Faithful expression of imprinted genes in cloned mice.

Adenovirus-mediated gene delivery and in vitro microinsemination produce offspring from infertile male mice.

Early death of mice cloned from somatic cells.

Erasing genomic imprinting memory in mouse clone embryos produced from day 11.5 primordial germ cells.

Restoration of spermatogenesis by lentiviral gene transfer: offspring from infertile mice.

Production of mitochondrial DNA transgenic mice using zygotes.

Analysis of the mechanism for chromatin remodeling in embryos reconstructed by somatic nuclear transfer.

[Abnormalities of mice cloned from somatic cells].

Regulation of spermatogenesis by testis-specific, cytoplasmic poly(A) polymerase TPAP.

Allogeneic offspring produced by male germ line stem cell transplantation into infertile mouse testis.

Fertilization of oocytes and birth of normal pups following intracytoplasmic injection with spermatids in mastomys (Praomys coucha).

Improved postimplantation development of rabbit nuclear transfer embryos by activation with inositol 1,4,5-trisphosphate.

Long-term proliferation in culture and germline transmission of mouse male germline stem cells.

Pregnancy by the tubal transfer of embryos developed after injection of round spermatids into oocyte cytoplasm of the cynomolgus monkey (Macaca fascicularis).

Effects of donor cell type and genotype on the efficiency of mouse somatic cell cloning.

The novel dominant mutation Dspd leads to a severe spermiogenesis defect in mice.

Do cloned mammals skip a reprogramming step?

The Sall3 locus is an epigenetic hotspot of aberrant DNA methylation associated with placentomegaly of cloned mice.

Microinsemination with first-wave round spermatids from immature male mice.

Changes in the localization of type I, III and IV collagen mRNAs in the kidneys of hereditary nephritic (ICGN) mice with renal fibrosis.

Oligo-astheno-teratozoospermia in mice lacking Cnot7, a regulator of retinoid X receptor beta.

Anemia with chronic renal disorder and disrupted metabolism of erythropoietin in ICR-derived glomerulonephritis (ICGN) mice.

Tissue-specific distribution of donor mitochondrial DNA in cloned mice produced by somatic cell nuclear transfer.

Improvement of anemia associated with chronic renal failure by recombinant human erythropoietin treatment in ICR-derived glomerulonephritis (ICGN) mice.

Cytoplasmic asters are required for progression past the first cell cycle in cloned mouse embryos.

Spermatogenesis from epiblast and primordial germ cells following transplantation into postnatal mouse testis.

Long-term culture of mouse male germline stem cells under serum-or feeder-free conditions.

Generation of pluripotent stem cells from neonatal mouse testis.

Birth of offspring after transfer of Mongolian gerbil (Meriones unguiculatus) embryos cryopreserved by vitrification.

Decreased expression of matrix metalloproteinases and tissue inhibitors of metalloproteinase in the kidneys of hereditary nephrotic (ICGN) mice.

Birth of mice produced by germ cell nuclear transfer.

Ubiquitin C-terminal hydrolase L-1 is essential for the early apoptotic wave of germinal cells and for sperm quality control during spermatogenesis.

A mutation in the serum and glucocorticoid-inducible kinase-like kinase (Sgkl) gene is associated with defective hair growth in mice.

Dynamic rearrangement of telomeres during spermatogenesis in mice.

Effect of human erythropoietin (hEPO) treatment on anemia in ICR-derived glomerulonephritis (ICGN) mice.

Generation of cloned mice by direct nuclear transfer from natural killer T cells.

Differential development of rabbit embryos following microinsemination with sperm and spermatids.

Transforming growth factor-beta1 mediated up-regulation of lysyl oxidase in the kidneys of hereditary nephrotic mouse with chronic renal fibrosis.

Noninvasive visualization of molecular events in the mammalian zygote.

Genetic and epigenetic properties of mouse male germline stem cells during long-term culture.

Variation in gene expression and aberrantly regulated chromosome regions in cloned mice.

Microinsemination and nuclear transfer using male germ cells.

Dysfunction of erythropoietin-producing interstitial cells in the kidneys of ICR-derived glomerulonephritis (ICGN) mice.

Anchorage-independent growth of mouse male germline stem cells in vitro.

Deletion of Peg10, an imprinted gene acquired from a retrotransposon, causes early embryonic lethality.

Improvement of cumulus-free oocyte maturation in vitro and its application to microinsemination with primary spermatocytes in mice.

Erythropoietin-producing cells in the liver of ICR-derived glomerulonephritis (ICGN) mice.

The critical roles of serum/glucocorticoid-regulated kinase 3 (SGK3) in the hair follicle morphogenesis and homeostasis: the allelic difference provides novel insights into hair follicle biology.

Clonal origin of germ cell colonies after spermatogonial transplantation in mice.

Inefficient reprogramming of the hematopoietic stem cell genome following nuclear transfer.

Production of knockout mice by random or targeted mutagenesis in spermatogonial stem cells.

Intra-strain polymorphisms are detected but no genomic alteration is found in cloned mice.

Spermatozoa and spermatids retrieved from frozen reproductive organs or frozen whole bodies of male mice can produce normal offspring.

Chorioallantoic placenta defects in cloned mice.

Expression of imprinted genes in cloned mice.

Leukemia inhibitory factor enhances formation of germ cell colonies in neonatal mouse testis culture.

Production of functional spermatids from mouse germline stem cells in ectopically reconstituted seminiferous tubules.

Differential developmental ability of embryos cloned from tissue-specific stem cells.

Efficient production of intersubspecific hybrid mice and embryonic stem cells by intracytoplasmic sperm injection.

Adenovirus-mediated gene delivery into mouse spermatogonial stem cells.

Production of cloned mice by somatic cell nuclear transfer.

Akt mediates self-renewal division of mouse spermatogonial stem cells.

Isolation, characterization, and in vitro and in vivo differentiation of putative thecal stem cells.

A novel mouse model for invariant NKT cell study.

The developmental ability of vitrified oocytes from different mouse strains assessed by parthenogenetic activation and intracytoplasmic sperm injection.

Production of knockout mice by gene targeting in multipotent germline stem cells.

Centromeric DNA hypomethylation as an epigenetic signature discriminates between germ and somatic cell lineages.

Role of retrotransposon-derived imprinted gene, Rtl1, in the feto-maternal interface of mouse placenta.

Pluripotency of a single spermatogonial stem cell in mice.

Birth of normal offspring from mouse eggs activated by a phospholipase Czeta protein lacking three EF-hand domains.

Functional assessment of centrosomes of spermatozoa and spermatids microinjected into rabbit oocytes.

Reduced fertility of mouse epididymal sperm lacking Prss21/Tesp5 is rescued by sperm exposure to uterine microenvironment.

Stable embryonic stem cell lines in rabbits: potential small animal models for human research.

Heritable imprinting defect caused by epigenetic abnormalities in mouse spermatogonial stem cells.

Effects of Akt signaling on nuclear reprogramming.

Efficient production of androgenetic embryos by round spermatid injection.

Large-scale production of growing oocytes in vitro from neonatal mouse ovaries.

Colorimetric detection of loop-mediated isothermal amplification reaction by using hydroxy naphthol blue.

Basic FGF and Activin/Nodal but not LIF signaling sustain undifferentiated status of rabbit embryonic stem cells.

A high-speed congenic strategy using first-wave male germ cells.

The mouse resources at the RIKEN BioResource center.

Changes in allele-specific association of histone modifications at the imprinting control regions during mouse preimplantation development.

Sex-reversed somatic cell cloning in the mouse.

A practical novel method for ensuring stable capacitation of spermatozoa from cryopreserved C57BL/6J sperm suspension.

Equilibrium vitrification of mouse embryos.

Genetic influences in mouse spermatogonial stem cell self-renewal.

BMP4 induction of trophoblast from mouse embryonic stem cells in defined culture conditions on laminin.

Rapid detection of Pseudomonas aeruginosa in mouse feces by colorimetric loop-mediated isothermal amplification.

The effect on intracytoplasmic sperm injection outcome of genotype, male germ cell stage and freeze-thawing in mice.

Generation of induced pluripotent stem cells in rabbits: potential experimental models for human regenerative medicine.

Serum- and feeder-free culture of mouse germline stem cells.

Impeding Xist expression from the active X chromosome improves mouse somatic cell nuclear transfer.

Generation of functional oocytes and spermatids from fetal primordial germ cells after ectopic transplantation in adult mice.

[Cloning mice: from aspects of donor cells].

Production of mouse embryonic stem cell lines from maturing oocytes by direct conversion of meiosis into mitosis.

In vitro production of functional sperm in cultured neonatal mouse testes.

Birth of normal mice following round spermatid injection without artificial oocyte activation.

Intracytoplasmic sperm injection induces transcriptome perturbation without any transgenerational effect.

In vitro production of fertile sperm from murine spermatogonial stem cell lines.

Optimization of a Protocol for Cryopreservation of Mouse Spermatozoa Using Cryotubes.

RNAi-mediated knockdown of Xist can rescue the impaired postimplantation development of cloned mouse embryos.

ES cell differentiation system recapitulates the establishment of imprinted gene expression in a cell-type-specific manner.

Efficient Production of Offspring from Japanese Wild-Derived Strains of Mice (Mus musculus molossinus) by Improved Assisted Reproductive Technologies.