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International Journal of Bioprinting                               Pregabalin impact on 3D neuronal models




            perturbs neuronal activity and oscillation; and (v) high-  regional identity in the forebrain, raising the possibility
            throughput 3D bioprinting technology demonstrated   that pregabalin may not be safe for use during pregnancy.
            its effectiveness, offering a promising approach to   In various regions of the world, pregabalin, which is
            accurately study the impacts of pregabalin on neuronal   an alkylated analog of GABA and bears similarity to
            models,  thereby  highlighting  its  potential  for  advancing   gabapentin, is utilized in the management of neuropathic
            neuropharmacological research. During the initial phases   conditions,  fibromyalgia, partial-onset  seizures,  and
            of brain development, the size of each developing neuronal   generalized anxiety disorders. Research has explored
            cell in the CNS is tightly controlled through the complex   off-label applications for treating restless legs syndrome
            interplay of signaling interactions that govern cell growth   and additional psychiatric conditions, including cyclical
            processes—namely, differentiation and proliferation. The   mood disorders. It is also used for leisure and recreational
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            complicated signaling interactions between the activities   purposes.  In one study, the majority of participants
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            of intrinsic and extrinsic elements determine the eventual   (more than 60%) used it recreationally.  Pregabalin is
            function of the cortical forebrain neurons. Neurons can   regarded as the final therapy of choice for neuropathic
            react to an infinite number of impulses, creating a neural   pain in pregnant women because of the paucity of safety
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            connection that allows them to effectively function during   studies in this setting.  Pregabalin use during pregnancy
            the active cell cycle. As a result, neurons transition into   has only recently been evaluated in a few studies, with no
            the cell cycle’s quiescent phase (G ) and commit to their   firm conclusions possible. Pregabalin can also easily cross
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            final differentiated state and function.  The forebrain   the BBB and placental barrier, as demonstrated in studies
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            plays a pivotal role in the CNS and is characterized by   involving  monkeys,  mice,  and  rats.  This  information  is
            three primary neuronal subtypes: cortical excitatory   crucial  when  selecting  medications  that  affect  the  CNS
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            glutamatergic neurons, inhibitory striatal medium   during development.  Further research is warranted to
            spiny  neurons,  and  cortical  GABAergic  interneurons.   assess the safety of pregabalin during pregnancy and for
            Debilitating neurological conditions are usually caused   fetal well-being.
            by forebrain neuronal dysfunction.  The complex and   This study examines the effects of prenatal exposure
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            dynamic  developmental  processes  of  the  mammalian   to pregabalin on the growth of cortical neurons, which
            cerebral cortex can be segmented into several stages that   are crucial for cognition, perception, and voluntary
            intersect during gestation. As cortical neurogenesis begins,   movement.  Pregabalin was administered to the primary
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            neuroepithelial cells construct a pseudostratified neural   mouse embryonic forebrain to determine whether it
            tube before transforming into radial glial cells (RGCs). 43,44    would negatively affect the survival of cortical neurons.
            Highly structured cortical layers are formed by cortical   We found that pregabalin B (PG) administration did not
            neurons that travel down radial fibers after being directly   affect cortical neuron viability, indicating that pregabalin
            or indirectly produced by RGCs in the ventricular zone.    at a dose of 10 µM is not harmful. This finding is in line
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            Precise genetic control is required for the timing and   with other studies that evaluated the possible toxicity of
            dynamics of these cellular activities, and any disruption   pregabalin in cellular models.  According to a previous
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            may result in cortical abnormalities. 45,46  Pediatric   study, pregabalin administration does not affect the vitality
            neurological dysfunction in humans is common and is   of ventral midbrain dopaminergic neurons.  A previous
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            caused by malformations of cortical development (MCDs),   study examining certain antiepileptic medications
            such as epilepsy, intellectual impairment, developmental   and pregnancy found that antiepileptics are linked to
            delay, and autism. 47                              decreased head circumference compared with lamotrigine,
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               In a previous study, we revealed that pregabalin   valproic acid, and carbamazepine.  According to another
            treatment affects the dopaminergic system.  Furthermore,   study, pregabalin use during pregnancy is linked to
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            in another of our previous studies, it was revealed that   poor gestational outcomes. Based on the findings of this
            pregabalin, at a therapeutic dose of 10 µM, does not affect   study, the effects of pregabalin use during pregnancy are
            the survival capacity of VMDNs but reduces ATP release   still not clearly understood. It has been suggested that
            and disrupts the morphogenesis and differentiation of   the selection of pregabalin be based on a risk-to-benefit
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            VMDNs.  In the present study, early pregabalin exposure   ratio assessment.
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            was found to interfere with the neurogenesis of cortical   Pregabalin at a dose of 10 µM has been found to
            forebrain neurons. These findings should be considered   significantly increase ATP release, which disrupts
            when making a judgment call regarding the therapeutic   cortical neuronal metabolic activity. These results align
            use of pregabalin during pregnancy. Pregabalin exposure   with the outcomes of our previous research, indicating
            drastically alters the expression of several transcription   that treatment with pregabalin and gabapentin at a
            factors and genes that  are thought to  be crucial for   concentration of 10 µM impairs the metabolic functions


            Volume 10 Issue 4 (2024)                       418                                doi: 10.36922/ijb.3010
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