Neural cell proliferation and survival in the hippocampus of adult CaV 2.1 calcium ion channel mutant mice.

Tottering mutant mice carry a mutation in the pore-forming subunit (α1A) of Ca2.1 (P/Q-type) voltage-gated calcium ion (Ca) channels resulting in reduced neuronal Ca current density. We assessed male tottering mice for spatial learning using the Morris water maze.

Variations by sex in anatomical and morphological features of the tongue of Egyptian goose (Alopochen aegyptiacus).

Tongue specimens were collected from 18 healthy adult Egyptian geese (Alopochen aegyptiacus) of both sexes. We measured and analyzed the whole, anterior, middle and posterior length and width of the tongue parts. The dorsal mucosal surface of each tongue was investigated by SEM.

Effects of quillaja saponin (Quillaja saponaria) on early embryonic zebrafish (Danio rerio) development.

Although much attention has focused on environmental contamination by heavy metals, pesticides, and polychlorinated biphenyls, potential deleterious effects of naturally occurring organic compounds have received much less consideration. Saponins, which are glycosides found in many plants, are important, environmentally ubiquitous organic compounds. Saponins have both beneficial and deleterious effects in adults, but little is known about how saponins effect early vertebrate embryonic development.