Home Bratislava Medical Journal 2019 Bratislava Medical Journal Vol.120, No.4, p.256–262, 2019

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

Impact factor 1.564


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Bratislava Medical Journal Vol.120, No.4, p.256–262, 2019

Title: Low concentration of morphine protects against cell death, oxidative stress and calcium accumulation by nicotine in PC12 cells
Author: K. Amini, H. Zhaleh, R. Tahvilian, V. Farnia

Abstract: OBJECTIVE: Nicotine causes cell death in many cell lines. Morphine at low concentrations has protective effects against cell death. We investigated the effects of low concentration of morphine on nicotine-induced cell death in PC12 cells.
MATERIALS AND METHODS: PC12 are cells that grow in DMEM culture medium. Cell viability was detected by MTT test and cells cytotoxicity was measured by LDH test. The activity of caspase-3 was diagnosed by the caspase activity colorimetric assay kit, and detection of mitochondrial membrane potential was confirmed by rhodamine 123 and TUNEL test was performed for DNA fragmentation detection. The fura-2 AM and also rhod 2-AM was used for measurement of intracellular calcium (Ca2+) ic and mitochondrial calcium (Ca2+) m and finally, measurement of antioxidant enzyme activities was assessed.
RESULTS: The low concentration of morphine increased cell viability and suppressed cell cytotoxicity, cell death and the formation of mitochondrial membrane potential compared to nicotine treated cells.  It also reduced the intracellular calcium (Ca2+) ic and mitochondrial calcium (Ca2+)m concentration, respectively.
CONCLUSION: Morphine as a pain reducer drug, in low concentrations, can protect PC12 cells from nicotine-induced cell death (Fig. 7, Ref. 59).

Keywords: morphine, nicotine, apoptosis, cell death
Published online: 26-Apr-2019
Year: 2019, Volume: 120, Issue: 4 Page From: 256, Page To: 262

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