Syed Ahsan Raza, DVM, Ph.D.


I am a postdoctoral researcher since February 2018 in our research group. My scientific interests circulate around brain circuits involved in different forms of memories in rodents. Specifically, with the combination of state-of-the-art methods including viral tracing, engram tagging, in vivo pharmacology, pharmacogenetics and rodent behaviors, I am focusing on how the local GABAergic interneuron control and fine tune the local as well of remote brain circuits in long term fear memory.




DVM, University of Veterinary and Animal Sciences, Lahore, Pakistan 2008
M.Sc. in Molecular Biology, University of Skövde, Sweden 2011
Ph.D. in Neurobiology, Otto-von-Guericke-University Magdeburg, Germany 2018

Contact information
E-mail: ahsan.raza[at]
Telephone: +49(391)-67 55119



Bayraktar G, Yuanxiang P, Confettura AD, Gomes GM, Raza SA, Stork O, Tajima S, Suetake I, Karpova A, Yildirim F, Kreutz MR. (2020) Synaptic control of DNA methylation involves activity-dependent degradation of DNMT3A1 in the nucleus. Neuropsychopharmacology. Epub ahead of print. doi: 10.1038/s41386-020-0780-2.

Çal??kan G, Raza SA, Demiray YE, Kul E, Sandhu KV, Stork O. (2019) Depletion of dietary phytoestrogens reduces hippocampal plasticity and contextual fear memory stability in adult male mouse. Nutritonal Neuroscience, Epub ahead of print Dec 9:1-12. doi:10.1080/1028415X.2019.1698826.

Andres-Alonso M, Ammar MR, Butnaru I, Gomes GM, Acuña Sanhueza G, Raman R, Yuanxiang P, Borgmeyer M, Lopez-Rojas J, Raza SA, Brice N, Hausrat TJ, Macharadze T, Diaz-Gonzalez S, Carlton M, Failla AV, Stork O, Schweizer M, Gundelfinger ED,  Kneussel M, Spilker C, Karpova A, Kreutz MR. (2019) SIPA1L2 controls trafficking and local signaling of TrkB-containing amphisomes at presynaptic terminals. Nature Communications 10(1):5448. doi: 10.1038/s41467-019-13224-z.

Mikhaylova M, Bär J, van Bommel B, Schätzle P, YuanXiang P, Raman R, Hradsky J, Konietzny A, Loktionov EY, Reddy PP, Lopez-Rojas J, Spilker C, Kobler O, Raza SA, Stork O, Hoogenraad CC, Kreutz MR. (2018) Caldendrin Directly Couples Postsynaptic Calcium Signals to Actin Remodeling in Dendritic Spines. Neuron  97(5):1110-1125.e14. doi: 10.1016/j.neuron.2018.01.046.

Raza SA, Albrecht A, Çal??kan G, Müller B, Demiray YE, Ludewig S, Meis S, Faber N, Hartig R, Schraven B, Lessmann V, Schwegler H, Stork O. (2017) HIPP neurons in the dentate gyrus mediate the cholinergic modulation of background context memory salience. Nature Communications  8(1):189. doi: 10.1038/s41467-017-00205-3

Çal??kan G, Müller I, Semtner M, Winkelmann A, Raza AS, Hollnagel JO, Rösler A, Heinemann U, Stork O, Meier JC. (2016) Identification of Parvalbumin Interneurons as Cellular Substrate of Fear Memory Persistence. Cerebral Cortex 26(5):2325-40. doi: 10.1093/cercor/bhw001

LSA Fellow Project: Role of local-circuit neurons in the formation and over-generalization of remote fear memory

PI: Dr. Ahsan Raza