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Focuses on the importance of cytoplasmic asters for cell cycle progression in cloned mouse embryos. Presence of cytoplasmic asters in the unfertilized murine oocytes which act as microtubule-organizing centers following fertilization; Examination of the role of asters during the first cell cycle of mouse nuclear transfer embryos; Localization of cytoplasmic asters by staining with an anti-alpha tubulin antibody.

The article reports that Vpr nuclear localization is crucial for efficient HIV-1 replication in CD4 cells. According to recent research published in the journal "Virology," the human immunodeficiency virus type 1 (HIV-1) accessory protein Vpr appears to make a substantial contribution to the replication of HIV-1 in established T cell lines when HIV-1 is present at very low multiplicities of infection. However, the role of Vpr in viral replication in primary CD4+ T cells remains to be clarified.

Discusses the abstract of the article "Tissue-specific distribution of donor mitochondrial DNA in cloned mice produced by somatic cell nuclear transfer," by K. Inoue and colleagues, published in a 2004 issue of the periodical "Genesis".

Discusses the abstract of the study "Retinoic acid controls blood vessel formation by modulating endothelial and mural cell interaction via suppression of Tie2 signaling in vascular progenitor cells," by Y. Suzuki et al published in an issue of "Blood".