Adult hippocampal neurogenesis buffers stress responses and depressive behavior methods
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Methods Summary
All procedures followed the Institute of Laboratory Animal Research guidelines and were approved by the Animal Care and Use Committee of the National Institute of Mental Health. Transgenic mice expressing HSV-TK under the GFAP promoter were generated from a previously-generated plasmid using standard techniques and bred on a mixed C57Bl/6:CD-1 background. Male v-WT and v-TK mice were treated with valganciclovir for 8 weeks (dexamethasone experiment), 10-19 weeks (endocrine), 12 weeks (behavior) or 4 weeks (histology; histology after 12 weeks in ), beginning at 8 weeks of age. Male C57Bl/6 mice were irradiated under pentobarbital anesthesia, as described previously, and tested 9 weeks later. For immunohistochemical analyses, mice were given BrdU 6 weeks (for PVN analysis) or 24 hours prior to sacrifice, brain sections were immunostained as previously described, and labeled cells were...
Methods Summary
Serum corticosterone was measured by radioimmunoassay (MP Biomedicals) from submandibular blood samples obtained directly from the home cage condition or after exploration of a novel box, restraint, or isoflurane exposure. For the dexamethasone suppression test, dexamethasone (Sigma; 50 µg/kg in propylene glycol) or vehicle were injected 90 min prior to restraint, and blood was sampled immediately following 10 min restraint.
Methods Summary
Behavioral tests were performed following 30 min of restraint or directly from the home cage. Different cohorts of mice were tested in the NSF test, elevated plus maze, forced swim test and sucrose preference test as previously described.,,, Statistical analyses were performed by t-test, log-rank test, or ANOVA with Fisher's LSD test for post hoc comparisons. Significance was set at P<0.05.
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Evidence quotes (3)
All procedures followed the Institute of Laboratory Animal Research guidelines and were approved by the Animal Care and Use Committee of the National Institute of Mental Health. Transgenic mice expressing HSV-TK under the GFAP promoter were generated from a previously-generated plasmid using standard techniques and bred on a mixed C57Bl/6:CD-1 background. Male v-WT and v-TK mice were treated with valganciclovir for 8 weeks (dexamethasone experiment), 10-19 weeks (endocrine), 12 weeks (behavior) or 4 weeks (histology; histology after 12 weeks in ), beginning at 8 weeks of age. Male C57Bl/6 mice were irradiated under pentobarbital anesthesia, as described previously, and tested 9 weeks later. For immunohistochemical analyses, mice were given BrdU 6 weeks (for PVN analysis) or 24 hours prior to sacrifice, brain sections were immunostained as previously described, and labeled cells were counted stereologically.
Serum corticosterone was measured by radioimmunoassay (MP Biomedicals) from submandibular blood samples obtained directly from the home cage condition or after exploration of a novel box, restraint, or isoflurane exposure. For the dexamethasone suppression test, dexamethasone (Sigma; 50 µg/kg in propylene glycol) or vehicle were injected 90 min prior to restraint, and blood was sampled immediately following 10 min restraint.
Behavioral tests were performed following 30 min of restraint or directly from the home cage. Different cohorts of mice were tested in the NSF test, elevated plus maze, forced swim test and sucrose preference test as previously described.,,, Statistical analyses were performed by t-test, log-rank test, or ANOVA with Fisher's LSD test for post hoc comparisons. Significance was set at P<0.05.
Machine-readable layer
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