Abstract
A large number of studies have reported that sensory gating disorders represented by P50 inhibition may be involved in the pathophysiological process of schizophrenia. However, few studies have explored the relationship between sensory gating disorders and cognitive dysfunction in patients with schizophrenia. This study aimed to explore sex differences in the relationship between cognitive and P50 deficits in patients with chronic schizophrenia, which has not been reported. A total of 183 chronic schizophrenia patients (128 males and 55 females) and 166 healthy controls (76 males and 90 females) participated in this study. The MATRICS Consensus Cognitive Battery (MCCB) was measured for cognitive function and P50 components for the sensory gating in all participants. The Positive and Negative Syndrome Scales (PANSS) was used to assess the psychopathological symptoms in patients. Female patients performed significantly better than male patients in several cognitive domains of MCCB (all p < 0.01). There were no significant differences in P50 components between male and female patients (all p > 0.05). Further analysis showed that in female patients, latency of S2 was negatively correlated with reasoning and problem-solving domain of MCCB (p < 0.05), and P50 ratio was negatively correlated with social cognition domain of MCCB (p < 0.05). In male patients, there was no any correlation between P50 and cognitive domains of MCCB. Our results suggest that there is a sex difference in the association between P50 deficiency and cognitive impairment in Chinese Han patients with schizophrenia.
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The data that support the findings of this study are available on request from the corresponding author.
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Funding
This study was funded by the CAS International Cooperation Research Program (153111KYSB20190004), the CAS Pioneer Hundred Talents Program and the CAS Key Lab of Mental Health. These sources had no further role in this study design, in the data collection and analysis, in the writing of the report and in the decision to submit the paper for publication.
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The research protocol was approved by the Institutional Review Board (IRB), Beijing Hui-Long-Guan hospital. Participants who were willing to participate in our study signed a written informed consent. The authors assert that all procedures contributing to this work comply with the ethical standards of the relevant national and institutional committees on human experimentation and with the Helsinki Declaration of 1975, as revised in 2008.
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Wang, D., Xia, L., Zhang, Z. et al. Sex difference in association between cognitive and P50 deficits in patients with chronic schizophrenia. Arch Womens Ment Health 26, 793–801 (2023). https://doi.org/10.1007/s00737-023-01367-4
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DOI: https://doi.org/10.1007/s00737-023-01367-4