scholarly journals Selegiline Recovers Synaptic Plasticity in the Medial Prefrontal Cortex and Improves Corresponding Depression-Like Behavior in a Mouse Model of Parkinson’s Disease

2019 ◽  
Vol 13 ◽  
Author(s):  
Motoki Okano ◽  
Kazue Takahata ◽  
Junya Sugimoto ◽  
Shizuko Muraoka
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Prefrontal Cortex ◽  
Synaptic Plasticity ◽  
Mouse Model ◽  
Medial Prefrontal Cortex

scholarly journals Loss of Non-Apoptotic Role of Caspase-3 in the PINK1 Mouse Model of Parkinson’s Disease

2019 ◽  
Vol 20 (14) ◽  
pp. 3407 ◽  
Author(s):  
Paola Imbriani ◽  
Annalisa Tassone ◽  
Maria Meringolo ◽  
Giulia Ponterio ◽  
Graziella Madeo ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Synaptic Plasticity ◽  
Mouse Model ◽  
Caspase 3 ◽  
Cysteine Proteases ◽  
Synaptic Function ◽  
Adult Brain ◽  
Striatal Slices

Caspases are a family of conserved cysteine proteases that play key roles in multiple cellular processes, including programmed cell death and inflammation. Recent evidence shows that caspases are also involved in crucial non-apoptotic functions, such as dendrite development, axon pruning, and synaptic plasticity mechanisms underlying learning and memory processes. The activated form of caspase-3, which is known to trigger widespread damage and degeneration, can also modulate synaptic function in the adult brain. Thus, in the present study, we tested the hypothesis that caspase-3 modulates synaptic plasticity at corticostriatal synapses in the phosphatase and tensin homolog (PTEN) induced kinase 1 (PINK1) mouse model of Parkinson’s disease (PD). Loss of PINK1 has been previously associated with an impairment of corticostriatal long-term depression (LTD), rescued by amphetamine-induced dopamine release. Here, we show that caspase-3 activity, measured after LTD induction, is significantly decreased in the PINK1 knockout model compared with wild-type mice. Accordingly, pretreatment of striatal slices with the caspase-3 activator α-(Trichloromethyl)-4-pyridineethanol (PETCM) rescues a physiological LTD in PINK1 knockout mice. Furthermore, the inhibition of caspase-3 prevents the amphetamine-induced rescue of LTD in the same model. Our data support a hormesis-based double role of caspase-3; when massively activated, it induces apoptosis, while at lower level of activation, it modulates physiological phenomena, like the expression of corticostriatal LTD. Exploring the non-apoptotic activation of caspase-3 may contribute to clarify the mechanisms involved in synaptic failure in PD, as well as in view of new potential pharmacological targets.

High γ‐Aminobutyric Acid Content Within the Medial Prefrontal Cortex Is a Functional Signature of Somatic Symptoms Disorder in Patients With Parkinson's Disease

2020 ◽  
Vol 35 (12) ◽  
pp. 2184-2192
Author(s):  
Stefano Delli Pizzi ◽  
Raffaella Franciotti ◽  
Antonio Ferretti ◽  
Richard A.E. Edden ◽  
Helge J. Zöllner ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Prefrontal Cortex ◽  
Medial Prefrontal Cortex ◽  
Acid Content ◽  
Somatic Symptoms ◽  
Aminobutyric Acid

Lateralized response of oxytocinase activity in the medial prefrontal cortex of a unilateral rat model of Parkinson's disease

2010 ◽  
Vol 213 (2) ◽  
pp. 328-331 ◽  
Author(s):  
Inmaculada Banegas ◽  
Isabel Prieto ◽  
Francisco Vives ◽  
Francisco Alba ◽  
Marc de Gasparo ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Prefrontal Cortex ◽  
Medial Prefrontal Cortex ◽  
Rat Model
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