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    Genotoxicity of pyrethrin misuse as chamomile substitute
    (Bayrakol Medical Publisher, 2024) Cicekliyurt, Merve M.; Akkus, Gulsum; Tufan, Begum Dermenci; Ipek, Hande; Yalcin, Sibel Oymak
    Aim: Chrysanthemum cinerariaefolium is a white-yellow, daisy-like plant known for more than one hundred fifty years of insecticide property. Although active ingredients of Chrysanthemum cinerariaefolium, pyrethrin is less toxic than organophosphate insecticides, adverse effects on immune system have been demonstrated in numerous animal studies. In our study, the genotoxic potential of accidental consumption (by mixing or unintentional causes) of Chrysanthemum cinerariaefolium instead of chamomile (Matricaria recutita) is investigated. Material and Methods: Lymphocyte isolation was performed from five male, five female donors from peripheral blood samples. Cytotoxic and genotoxic effects of pyrethrin were investigated in human peripheral lymphocyte cultures with chromosome abnormalities (CA). Micronucleus (MN), mitotic index (MI), and nucleus division index (NDI) were calculated. Cultures were treated with mixed doses of pyrethrin and chamomile in different ratios. Results: All doses compared with negative control MN, binucleate, tetranucleate, and MI were significantly increased. In the MN assay, micronucleus formation has been increased due to the gradual increase of pyrethrin/chamomile concentration. In chromosome anomaly test, results differed compared with negative and positive control, and in 24 and 48-hour applications of 1/1 mixed pyrethrin and chamomile samples were founded genotoxically. Discussion: As a result, we have observed pyrethrin has dose-related toxicity increase within the combination. We conclude that the effect of long-term accidental consumption trigger MN, binucleate, tetranucleate formation together with chromosome and chromatin type aberrations.
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    In silico molecular docking and in vitro analysis of atomoxetine
    (Taylor & Francis Ltd, 2025) Bolat, Nurullah; Hiz-celikliyurt, Merve Meliha; Akinci, Erhan; Akkus, Gulsum; Gunay, Melih; Korkmaz, Sukru Alperen
    Although atomoxetine, a selective norepinephrine reuptake inhibitor, is widely used in the treatment of attention-deficit/hyperactivity disorder (ADHD), there is limited data on its cytogenetic effects. This study aimed to investigate the cytotoxicity and genotoxicity of atomoxetine in vivo and silico. Chromosome aberration and micronucleus assays were used to analyze the genotoxic effect of atomoxetine in human peripheral blood lymphocytes under culture conditions. The mitotic index was assessed for cytotoxic potential. For the docking analysis, DNA receptor (1BNA) was prepared with ChimeraX, and the Atomoxetine molecule was optimized by Avogadro2.0 software. In silico molecular docking analysis was carried out utilizing SwissDock online platform. The results obtained were visualized using ChimeraX and Pymol software. Atomoxetine doses of 9.6 mu g/mL (equal to about 1.2 mg/kg as a maintenance dose), 14.4 mu g/mL (equal about to 1.8 mg/kg as the highest dose systematically tested), 48.0 mu g/mL (equal about to 6 mg/kg as five times the maintenance dose) and 96.0 mu g/mL (equal about to 12 mg/kg as ten times the maintenance dose) were analyzed. The findings clearly indicate that atomoxetine has no genotoxic effect at the therapeutic dose. However, we observed genotoxic effects at 48.0 and 96.0 mu g/mL doses. No strong binding affinity occurs in silico analyses. As one of the initial inquiries into the in silico and in vivo appraisal of atomoxetine's genotoxic impacts, the research has established that atomoxetine does not significantly affect the frequency of chromosomal damage or micronucleus formation. Genotoxic effects should be kept in mind at doses above clinical practice.