The Effectiveness of GABA Agonist in Decreasing Expression of NR2B Subunit of N-Methyl-D-Aspartate (NMDA) Receptor in Neuropathic Mice by Partial Sciatic Nerve Ligation (PSNL) Method
| Main Authors: | FAJRIN, FIFTEEN APRILA, KHOTIB, JUNAIDI, SUSILO, IMAM |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Fakultas Farmasi Universitas Indonesia
, 2017
|
| Online Access: |
http://jifi.farmasi.univpancasila.ac.id/index.php/jifi/article/view/40 http://jifi.farmasi.univpancasila.ac.id/index.php/jifi/article/view/40/26 |
Daftar Isi:
- Neuropathy pain is a pain that caused by nerves injury. Nowadays, treatment for neuropathic pain change to drugs that works as GABA agonist and cause reimbalance between excitatory and inhibitory neurotransmitter in central nervous system (CNS). The present study was designed to investigate the effectiveness of gabapentin and baclofen in decreasing N-Methyl-D-Aspartate (NMDA) receptor NR2B subunit activity in neuropathic pain. Fourty mice were divided into 8 groups i.e sham, negative control, gabapentin (10, 30, 100 nmol) and baclofen (1, 10, 30 nmol). Neuropathic pain was induced by ligation of sciatic nerve with Partial Sciatic Nerve Ligation (PSNL) method). Treatments were administrated intrathecally once a day for seven consecutive days, at a week after induction. On day 15th, mice were sacrified and the spinal cord were removed quickly. The expression of NMDA receptor NR2B subunit were examined with imunohistochemistry and data were analyzed by one way anova. The result from this research was gabapentin and baclofen administration significantly decrease expression of NMDA receptor NR2B subunit in mice compared to sham group. The higher the dose, the more effective to decrease the number of neuron that express NR2B. The conclusion of this research was gabapentin and baclofen treat neuropatic pain by decreased the number of NMDA receptor NR2B subunit.
- Nyeri neuropati merupakan nyeri yang disebabkan oleh trauma atau cedera pada saraf. Saat ini, terapi untuk mengatasi nyeri neuropati beralih pada agonis GABA yang menyebabkan kembalinya keseimbangan antara neurotransmitter eksitatori dan inhibitori di sistem saraf pusat (SSP). Penelitian ini bertujuan untuk membuktikan efektivitas dari gabapentin dan baclofen dalam menurunkan ekspresi dari reseptor N-Methyl-D-Aspartate (NMDA) subunit NR2B pada nyeri neuropati. Empat puluh mencit dibagi kedalam 8 kelompok yaitu: sham, kontrol negatif, gabapentin (10, 30, 100 nmol) dan baclofen (1, 10, 30 nmol). Nyeri neuropati diinduksi dengan ligasi pada saraf sciatic dengan metode Partial Sciatic Nerve Ligation (PSNL). Senyawa uji diberikan setiap hari selama tujuh hari, satu minggu setelah induksi. Pada hari ke-15, mencit dikorbankan dan diambil bagian spinal cord. Ekspresi reseptor NMDA subunit NR2B diamati dengan imunohistokimia dan data dianalisis menggunakan anova satu arah. Hasil dari penelitian ini menunjukkan gabapentin dan baclofen menurunkan ekspresi reseptor NMDA subunit NR2B (dose dependent) dibandingkan kelompok sham. Kesimpulan dari penelitian ini bahwa gabapentin dan baclofen dapat mengatasi nyeri neuropati melalui penurunan aktivitas reseptor NMDA subunit NR2B.