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. Author manuscript; available in PMC: 2011 May 19.
Published in final edited form as: J Comp Neurol. 2010 Mar 1;518(5):647–667. doi: 10.1002/cne.22235

TABLE 3.

Parameters of Stereological Electron Microscopic (EM) Synapse Counts in the Dentate Gyrus

Thick sections/rat 11.2 ± 2
EM sample sites/rat 6
Counting frame size (μm) 3.69 × 5.11
Dissector height (# ultrathin sections)
 Granule cell layer 150
 Inner third molecular layer 100
 Outer two-thirds molecular layer 100
No. ultrathin sections/thick section 813 ± 26
GABA-positive synapses counted/rat 1167 ± 103
GABA-negative synapses counted/rat 3073 ± 184
GABA-negative synapse sizes measured/rat 226 ± 12

Values indicate mean ± SEM unless specified otherwise. Data were collected from 14 rats: six controls, three at 5 days after status epilepticus, and five epileptic animals.