negative inference; confirmed by additional inferences
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EXPRESSION: negative (inference)
ANIMAL: rat
PROTOCOL: immunohistochemistry
Page location: p 311, right bottom
"In the case of parvalbumin-VIP [vasoactive intestinal polypeptide] co-localization, only those VIP cells within or close to stratum pyramidale were examined, since parvalbumin cells are absent in other layers. Thus, all VIP-positive cells in the distal part of stratum radiatum or in stratum lacunosum-moleculare are considered parvalbumin-negative by their position. None of the 136 VIP-immunopositive cells near stratum pyramidale in CA1 and the 36 in CA3 showed parvalbumin immunofluorescence (Fig. 8E, F). In addition, 15 large multipolar VIPpositive basket cells were selected from different sections, but those were also negative for parvalbumin. This finding demonstrates that there is a basket cell type different from those containing parvalbumin but which is characterized by the coexistence of VIP and CCK [cholecystokinin]."
Interpretation notes: Glutamatergic and GABAergic PV+ types in CA3 SLM_SR_SL_SP_SO are probably VIP- by contrapositive logic; Clopper-Pearson confidence interval lower bound = 90.3% (n = 36/36)
EXPRESSION: negative (inference)
ANIMAL: rat
PROTOCOL: immunohistochemistry
Page location: p841, Table 1
"TABLE 1. Proportion of a1 subunit-immunoreactive neurons containing GABA,
calcium-binding proteins and neuropeptide "
Interpretation notes: Glutamatergic and GABAergic GABAa alpha1+ types in CA3 SLM_SR_SL_SP_SO are probably VIP-
EXPRESSION: negative (inference)
ANIMAL: rat
PROTOCOL: immunohistochemistry
Page location: p841, Table 2
"TABLE 2. Proportion of neurons stained for GABA, calcium-binding proteins
and neuropeptides expressing the a1 subunit-immunoreactivity "
Interpretation notes: Glutamatergic and GABAergic GABAa alpha1+ types in CA3 SLM_SR_SL_SP_SO are probably VIP- by contrapositive logic
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negative inference; confirmed by additional inferences
