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Abstract：
OBJECTIVE: Combinations of different classes of antidepressants (including herbal adjuvants) have been used as an alternative means of achieving better results in the treatment of depressed patients. However, studies characterizing the interactions between herbal adjuvants and antidepressants are lacking. This study is the first to investigate the interaction between diene valepotriates (VAL) from Valeriana glechomifolia, a species with antidepressant-like effects, and imipramine (IMI), desipramine (DESI) and bupropion (BUP). The interactions were assessed via isobolographic analyses, which represent a tool for evaluating interactions between drugs.
METHODS: The interaction between VAL and each antidepressant was evaluated in mice given concurrent oral administration of each drug with fixed ED50 ratios and subjected to a forced swimming test (FST). Spontaneous locomotion was measured in the open field test.
RESULTS: The drug combinations produced a dose-dependent anti-immobility effect in the FST without altering mouse locomotor activity. Isobolographic analysis revealed that VAL resulted in synergistic interactions in combination with each of the antidepressants tested.
CONCLUSIONS: The synergistic interactions between VAL and IMI, DESI and BUP highlight the potential for VAL to serve as adjuvants to antidepressant drugs and suggest that VAL does not directly target the same sites on neuronal transporters as the antidepressants.
METHODS: The interaction between VAL and each antidepressant was evaluated in mice given concurrent oral administration of each drug with fixed ED50 ratios and subjected to a forced swimming test (FST). Spontaneous locomotion was measured in the open field test.
RESULTS: The drug combinations produced a dose-dependent anti-immobility effect in the FST without altering mouse locomotor activity. Isobolographic analysis revealed that VAL resulted in synergistic interactions in combination with each of the antidepressants tested.
CONCLUSIONS: The synergistic interactions between VAL and IMI, DESI and BUP highlight the potential for VAL to serve as adjuvants to antidepressant drugs and suggest that VAL does not directly target the same sites on neuronal transporters as the antidepressants.
摘要：
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