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NT3 and NGF effects on early sympathetic neurons. E7.5 sympathetic explants were grown for 4 days with NGF or NT3. All markers analyzed were expressed at similar levels in the two cultures. Although there was a discernible trend for TRKC (and in some experiments for cholinergic markers) to be slightly elevated in NT3-treated compared with NGF-treated cultures, the differences were less than 2-fold.
