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OBJECTIVE: Aim: To study the role of certain neurotransmitters (brain-derived neurotrophic factor (BDNF), 5-hydroxytryptamine (5-HT)), metalloenzymes (matrix met-alloproteinase-9) (MMP-9) and hormones (ghrelin) in the pathogenesis of mental disorders associated with stress under the impact of traumatic events. PATIENTS AND METHODS: Materials and methods: We conducted a systematic search of major electronic medical databases published before October 1, 2022. Such keywords as (post-traumatic stress disorder OR PTSD), (Brain-derived neurotrophic factor OR BDNF), (matrix metalloproteinase-9 OR MMP-9), (serotonin OR 5-HT), ghrelin, melatonin identified relevant studies. All articles were reviewed, including original studies, systematic reviews and meta-analyses. CONCLUSION: Conclusions: Unfortunately, the imbalance of neurotransmitter systems of the brain remains not fully understood under such a condition at this stage of world science development. Their role remains unclear both during the immediate exposure to the stress factor and in the remote period. Therefore, under¬standing the mechanisms underlying the systemic consequences of PTSD is crucial for the development of prediction models and timely rational therapy.
Romash et al. (2023) studied this question.