All of the evidence provided on Hippocampome.org are quotes from scientific texts.
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EXPRESSION: negative (inference)
ANIMAL: rat
PROTOCOL: immunohistochemistry
Page location: p971, left mid
"Parvalbumin-immunoreactive neurons were seen in strata oriens and pyramidale, but not in strata radiatum and lacunosum-moleculare of the CA1 and CA3, while parvalbumin-immunoreactive fibers were found in all strata, but more concentrated in the stratum pyramidale."
Interpretation notes: Glutamatergic and GABAergic types in CA3 SLM_SR are negative for PV
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 types in CA3 SLM_SR are negative for PV
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negative inference