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Background: Several markers have been described to characterise the population structure and genetic diversity of Fasciola species (Fasciola hepatica(F. hepatica) and Fasciola gigantica (F. gigantica). However, sequence analysis of a single genomic locus cannot provide sufficient resolution for the genetic diversity of the Fasciola parasite whose genomes are ∼1.3 GB in size. Objectives: To gain a better understanding of the gene diversity of Fasciola isolates from western Iran and to identify the most informative markers as candidates for epidemiological studies, five housekeeping genes were evaluated using a multilocus sequence typing (MLST) approach. Methods: MLST analysis was developed based on five genes (ND1, Pepck, Pold, Cyt b and HSP70) after genomic DNA extraction, amplification and sequencing. Nucleotide diversity and phylogeny analysis were conducted on both concatenated MLST loci and each individual locus. A median joining haplotype network was created to examine the haplotypes relationship among Fasciola isolates. Results: Thirty‐three Fasciola isolates (19 F. hepatica and 14 F. gigantica) were included in the study. A total of 2971 bp was analysed for each isolate and 31 sequence types (STs) were identified among the 33 isolates (19 for F. hepatica and 14 for F. gigantica isolates). The STs produced 44 and 42 polymorphic sites and 17 and 14 haplotypes for F. hepatica and F. gigantica, respectively. Haplotype diversity was 0.982 ± 0.026 and 1.000 ± 0.027 and nucleotide diversity was 0.00200 and 0.00353 ± 0.00088 for F. hepatica and F. gigantica, respectively. There was a high degree of genetic diversity with a Simpson's index of diversity of 0.98 and 1 for F. hepatica and F. gigantica, respectively. While HSP70 and Pold haplotypes from Fasciola species were separated by one to three mutational steps, the haplotype networks of ND1 and Cyt b were more complex and numerous mutational steps were found, likely due to recombination. Conclusions: Although HSP70 and Pold genes from F. gigantica were invariant over the entire region of sequence coverage, MLST was useful for investigating the phylogenetic relationship of Fasciola species. The present study also provided insight into markers more suitable for phylogenetic studies and the genetic structure of Fasciola parasites. [ABSTRACT FROM AUTHOR]

Introduction: Considering the multiplicity of adenotonsillectomy in children 2-10-year old at the paediatric surgery centres, patient anxiety leads to an increase in surgical and anaesthetic complications. Patients' unfamiliarity with surgical and anaesthetic interventions may increase their stress. Midazolam premedication reduces patient anxiety. In previous studies, psychological preparation before surgery using understandable terms to children, has reduced their anxiety. The aim of this study was to compare and study behavioural reflections among the children in two groups: the first group was prescribed oral midazolam, and the second group received psychological preparation with the booklet about anaesthesia and anaesthesia-resident explanation.Materials and Methods: This study is a clinical trial conducted on 48 children undergoing adenotonsillectomy. Children in the first group (midazolam group) received oral midazolam 0.5 mg/kg, 20 min before surgery. A booklet containing pictures and information about anaesthesia and the operating room was given to the second group (psychological preparation group) the night before surgery and anaesthesia resident explained the booklet to the children. The anxiety level was measured in both groups using the State-Trait Anxiety Inventory for Children questionnaire the night before surgery and on the morning of surgery (after giving midazolam to Group II). The results were analysed using SPSS.Results: In this study, 58.3% of the first group and 45.8% of the second group were male. The mean age of the first and second groups was 8.45 ± 1.86 and 9.12 ± 1.72 years, respectively. The anxiety in the first group significantly decreased in the morning before surgery compared to the night before operation (P < 0.001). The anxiety in the second group significantly decreased in the morning before surgery compared to the night before as well (P < 0.001).Conclusion: The results showed that midazolam and psychological preparation prior to surgery can reduce the anxiety of children before adenotonsillectomy. [ABSTRACT FROM AUTHOR]