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Chronic oral nicotine administration and withdrawal regulate the expression of neuropeptide Y and its receptors in the mesocorticolimbic system

التفاصيل البيبلوغرافية
العنوان: Chronic oral nicotine administration and withdrawal regulate the expression of neuropeptide Y and its receptors in the mesocorticolimbic system
المؤلفون: Burcu Balkan, Ersin O. Koylu, Ali Birdogan, Ramazan C. Gokmen, Buket Aypar, Elif Salur, Aysegul Keser, Lutfiye Kanit, Fulya Tuzcu, Oguz Gozen, Meliha Ozturk Bintepe
المصدر: Neuropeptides. 90:102184
بيانات النشر: Elsevier BV, 2021.
سنة النشر: 2021
مصطلحات موضوعية: Male, Corticotropin-Releasing-Factor, Administration, Oral, Hippocampus, Gamma-Aminobutyric-Acid, Nicotine, Endocrinology, Mesencephalon, Anxiolytic-Like, Morphine-Withdrawal, Medial Prefrontal Cortex, Limbic System, Neuropeptide Y, Elevated Plus-Maze, Nicotinic Agonists, Receptor, Behavior, Animal, Restraint Stress, General Medicine, Neuropeptide Y receptor, Substance Withdrawal Syndrome, Nicotine withdrawal, medicine.anatomical_structure, Neurology, medicine.drug, medicine.medical_specialty, Prefrontal Cortex, Antagonist Biie0246, Motor Activity, Nucleus accumbens, Amygdala, Cellular and Molecular Neuroscience, Drug withdrawal, Internal medicine, medicine, Animals, RNA, Messenger, Rats, Wistar, Anxiety-Like Behavior, Endocrine and Autonomic Systems, business.industry, medicine.disease, Rats, Receptors, Neuropeptide Y, Mesocorticolimbic system withdrawal, Brain Reward Function, business
الوصف: Neuropeptide Y (NPY) and its receptors are involved in the regulation of mood, stress, and anxiety. In parallel, NPY signaling may play a vital role in the negative affective state induced by drug withdrawal. This study examined the changes in the transcript levels of NPY, Y1, Y2, and Y5 receptors in the mesocorticolimbic system during chronic nicotine exposure and withdrawal. Rats were administered with nicotine (initial dose: 25 mu g/ml, maintenance dose: 50 mu g/ml, free base) in drinking water for 12 weeks. Control group received only tap water. In the final week of the study, some of the nicotine-treated animals continued to receive nicotine (0-W), whereas some were withdrawn for either 24 (24-W) or 48 (48-W) h. All animals were decapitated after the evaluation of somatic signs (frequency of gasps, eye blinks, ptosis, shakes, teeth chatter) and the duration of locomotor activity and immobility. mRNA levels of NPY, Y1, Y2, and Y5 receptors in the mesocorticolimbic system were measured by quantitative real-time PCR (qRT-PCR). Results showed that nicotine withdrawal increased overall somatic signs. Moreover, chronic nicotine treatment increased the duration of locomotor activity, whereas withdrawal increased the duration of immobility. qRT-PCR analysis revealed that chronic nicotine treatment increased NPY mRNA levels in the hippocampus. On the other hand, 24- and 48-h withdrawals increased NPY mRNA levels in the amygdala and medial prefrontal cortex (mPFC), Y1 and Y2 mRNA levels in the nucleus accumbens and mPFC, and Y5 mRNA levels in the mPFC. These findings suggest that nicotine withdrawal enhances NPY signaling in the mesocorticolimbic system, which could be an important mechanism involved in regulating the negative affective state triggered during nicotine withdrawal.
Ege University Scientific Research Projects Coordination Unit [18-BAUM-001, TYL-2019-20469]
This study was supported financially by Ege University Scientific Research Projects Coordination Unit (Project Numbers: 18-BAUM-001 and TYL-2019-20469) .
تدمد: 0143-4179
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::54589403cf9b0f8472460daf5e02ca19
https://doi.org/10.1016/j.npep.2021.102184
حقوق: CLOSED
رقم الأكسشن: edsair.doi.dedup.....54589403cf9b0f8472460daf5e02ca19
قاعدة البيانات: OpenAIRE
الوصف
تدمد:01434179