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  4. Selective medial septum lesions in healthy rats induce longitudinal changes in microstructure of limbic regions, behavioral alterations, and increased susceptibility to status epilepticus

Selective medial septum lesions in healthy rats induce longitudinal changes in microstructure of limbic regions, behavioral alterations, and increased susceptibility to status epilepticus

Luna-Munguia H, Gasca-Martinez D, Garay-Cortes A, Coutiño D, Regalado M, de Los Rios E, Villaseñor P, Hidalgo-Flores F, Flores-Guapo K, Benito BY, Concha L (2024) Selective medial septum lesions in healthy rats induce longitudinal changes in microstructure of limbic regions, behavioral alterations, and increased susceptibility to status epilepticus. Mol Neurobiol 61(10):1-21. doi: 10.1007/s12035-024-04069-9 PMID: 38443731

Objective: To evaluate tissue changes after lesioning the medial septum (MS) of normal rats and assess how the depletion of specific neuronal populations alters the animals’ behavior and susceptibility to establishing a pilocarpine-induced status epilepticus.

Summary: Behaviorally, the GAT1-saporin injection impacted spatial memory formation, while 192-IgG-saporin triggered anxiety-like behaviors. Regarding the pilocarpine-induced status epilepticus, an increased mortality rate was observed. Selective septo-hippocampal modulation impacts the integrity of limbic regions crucial for certain behavioral skills and could represent a precursor for epilepsy development.

Usage: Injection of 192-IgG-SAP (375 ng/μl dissolved in sterile 0.1X PBS) and GAT1-SAP (325 ng/μl dissolved in sterile 0.1X PBS) into the MS to selectively target choline neuron or GABA populations of the medial septum, respectively.

Related Products: GAT1-SAP (Cat. #IT-32), 192-IgG-SAP (Cat. #IT-01)

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