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Hippocampal neuron numbers in male and female sea lions known or suspected of previous exposure to domoic acid.
| Granule cell layer |
Hilus | CA3 | CA2 | CA1 | |
|---|---|---|---|---|---|
| Male (n=4 animals, 4 hippocampi) | 2,000,000 ± 560,000 | 103,000 ± 9,000 | 597,000 ± 82,000 | 143,000 ± 35,000 | 1,550,000 ± 270,000 |
| Female (n=10 animals, 13 affected hippocampi) | 820,000 ± 190,000* | 54,000 ± 10,000* | 368,000 ± 52,000* | 106,000 ± 14,000 | 1,150,000 ± 120,000 |
Values represent neurons/hippocampus (mean ± sem).
p<0.05, t test.
