Author

Sydney N. Gregg

University of Pittsburgh

Listed by name: these papers carry no ORCID for this author, so different people with the same name may be mixed together.

Biology Disciplines

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Neuroscience· 2

Signature Assays, Organisms & Methods

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Organism:Drosophila· 2 Approach:experimental assay· 2 Research Focus:cell type annotation· 1 Assay:electronic health records· 1

Frequent Co-Authors

Brigitte F. SchmidtiD· 2 shared Edwin S. LevitaniD· 2 shared Junghun Kim· 2 shared Markus K. KloseiD· 2 shared Xiju XiaiD· 2 shared Yulong LiiD· 2 shared David L. DeitcheriD· 1 shared Dinara BulgariiD· 1 shared

Activity by Year

2023-2026 · peak 1/yr

Co-Author Collaboration Network

9 top collaborators · 36 mutual co-author links

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2 shared papersNeuroscience

Brigitte F. SchmidtORCID

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2 papers

Recent·Most cited

NeurosciencebioRxivPreprintJul 30, 2026

Adult Clock Neuron Somatic Neuropeptide Release and Cytonemes Regulate Sleep

Markus K. Klose, Patricia K. Rivlin, Dinara Bulgari…·Edwin S. Levitan

The paper investigates how s-LNv clock neurons regulate sleep through neuropeptide release and cytoneme-mediated communication with l-LNv neurons.

DOI 10.64898/2026.07.27.741016

Drosophilaexperimental assay

𝕏 PostBluesky

NeurosciencebioRxivPreprintDec 1, 2023

Desynchronized Somas and Terminals in a Morning Clock Neuron: Presynaptic Ca2+ Spiking and Native Neuropeptide Release Peak As Somatic Ca2+ Declines

Markus K. Klose, Junghun Kim, Sydney N. Gregg…·Edwin S. Levitan

The paper investigates the timing mismatch between somatic Ca2+ activity and neuropeptide release in Drosophila sLNv neurons, finding that terminal Ca2+ spiking and neuropeptide release peak midmorning, hours before their behavioral effects.

3 citations

Drosophilaelectronic health records

𝕏 PostBluesky