We investigated the associations of rs6280, rs6295, rs6265, rs16965628, and rs7322347 with schizophrenia in a case-control study, and associations of these genetic variants with several clinical features. We also investigated markers of inflammatory response (C-reactive protein, IL-2, IL-6, IL-10), the activity of leukocytic elastase (LE) and α1-proteinase inhibitor (a1-PI), antibodies to S100B and myelin basic protein (MBP) in schizophrenia. Clinical symptoms were assessed on three scales: Positive and Negative Syndrome Scale, The Bush - Francis Catatonia Rating Scale and Frontal Assessment Battery. All SNPs were typed using predesigned TaqMan SNP genotyping assays. The biomarkers related to the immune system were routinely tested using ELISA kits. The association with schizophrenia was found for rs6280 ( = 0.05) and rs7322347 ( = 0.0013). We found differences between groups by parameters of LE and a1-PI and LE/a1-PI ( < 0.001). And IL-6 was evaluated in the schizophrenia group ( < 0.001). We showed that patients with the TT allele ( rs6265) had more severe impairments in frontal lobe function. a1-PI can serve as a marker for assessing the severity of frontal lobe damage in patients with frontal dementia. We found some biological parameters reflecting the severity of frontal dysfunction in schizophrenia.
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| http://dx.doi.org/10.3389/fpsyt.2021.655178 | DOI Listing |
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