Immunology

Pathway to resolve allergic asthma is discovered

A group of Brazilian researchers succeeded in preventing allergic asthma from progressing in experimental models by increasing the amount of a certain protein. This increase, in turn, blocked the CD4+ T lymphocytes responsible ...

Autism spectrum disorders

Autism linked to egg cells' difficulty creating large proteins

New work from Carnegie's Ethan Greenblatt and Allan Spradling reveals that the genetic factors underlying fragile X syndrome, and potentially other autism-related disorders, stem from defects in the cell's ability to create ...

Genetics

Why does making new egg cells require so much cell death?

A highly detailed study of how the roundworm C. elegans forms oocytes suggests that the egg-making process leads to the formation and subsequent destruction of cells with an extra nucleus, but that some cellular materials ...

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Ovum

An ovum (plural ova, from the Latin word ovum meaning egg or egg cell) is a haploid female reproductive cell or gamete. Both animals and embryophytes have ova. The term ovule is used for the young ovum of an animal, as well as the plant structure that carries the female gametophyte and egg cell and develops into a seed after fertilization. In lower plants and algae, the ovum is also often called oosphere.

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