Objective To investigate the serum levels of long non-coding RNA(lncRNA)HOX transcript antisense RNA(HOTAIR)and homeobox A11 antisense RNA(LncRNA HOXA11-AS)in patients with traumatic brain injury(TBI),and their relationship with cognitive function.Methods From January 2022 to December 2023,106 TBI patients who visited Fuling Hospital Affiliated to Chongqing University were regarded as the TBI group.They were separated into a cognitive impairment group(n=44)and a non-cognitive impairment group(n=62)based on whether they experienced cognitive impairment.78 healthy individuals who underwent physical examinations in Fuling Hospital Affiliated to Chongqing University were regarded as the control group.Real-time fluorescence quantitative PCR(qRT-DCR)method was applied to detect serum LncRNA HOTAIR and LncRNA HOXA11-AS levels.Spearman and Pearson methods were used to analyze the correlation between serum LncRNA HOTAIR and LncRNA HOXA11-AS levels,cognitive function,and inflammatory factors in TBI patients.Receiver operating characteristic(ROC)curve was applied to analyze the predictive value of serum LncRNA HOTAIR and LncRNA HOXA11-AS for cognitive impairment in TBI patients.Logistic regression was applied to analyze the impacts of serum LncRNA HOTAIR and LncRNA HOXA11-AS expression on cognitive impairment after TBI.Results Compared with the control group,the expression levels of serum LncRNA HOTAIR(1.75±0.29 vs 1.03±0.15)and LncRNA HOXA11-AS(1.59±0.35 vs 0.99±0.18)in the TBI group were significantly increased,and the differences were statistically significant(t=20.034,13.846,all P<0.05).The cognitively impaired group had significantly higher serum LncRNA HOTAIR,LncRNA HOXA11-AS,tumor necrosis factor-α(TNF-α),interleukin 1β(IL-1β)and interleukin 6(IL-6)levels were significantly higher in the cognitive impairment group than in the group without cognitive impairment(t=3.011～9.615),and Montreal Cognitive Assessment(MoCA)scale was considerably lower than that of the no cognitive impairment group(t=17.633),and the differences were statistical significance(all P<0.05).Spearman correlation analysis showed that the expression levels of serum LncRNA HOTAIR and LncRNA HOXA11-AS in TBI patients were negatively correlated with MoCA scores(r=-0.515,-0.430,all P<0.001),Pearson correlation analysis showed that the expression levels of serum LncRNA HOTAIR and LncRNA HOXA11-AS were positively correlated with TNF-α,IL-1βand IL-6 levels(r=0.423,0.397,0.452,0.437,0.512,0.390,all P<0.001).The AUC(95%CI)of serum LncRNA HOTAIR and LncRNA HOXA11-AS alone and in combination predicted cognitive impairment after TBI was 0.896(0.822～0.947),0.864(0.784～0.923)and 0.960(0.903～0.988),respectively,the combined predictive value of the two was better than that of individual prediction(Z=2.457,2.998,all P<0.05).Logistic regression analysis showed that elevated expression levels of serum LncRNA HOTAIR and LncRNA HOXA11-AS were risk factors for cognitive impairment in TBII patients,while MoCA score was a protective factor(all P<0.05).Conclusion The levels of serum LncRNA HOTAIR and LncRNA HOXA11-AS have certain value in the functional impairment of TBI patients,and they may participate in the occurrence and progression of cognitive impairment in TBI patients by regulating the levels of inflammatory factors in the body.

Objective To investigate the serum levels of long non-coding RNA(lncRNA)HOX transcript antisense RNA(HOTAIR)and homeobox A11 antisense RNA(LncRNA HOXA11-AS)in patients with traumatic brain injury(TBI),and their relationship with cognitive function.Methods From January 2022 to December 2023,106 TBI patients who visited Fuling Hospital Affiliated to Chongqing University were regarded as the TBI group.They were separated into a cognitive impairment group(n=44)and a non-cognitive impairment group(n=62)based on whether they experienced cognitive impairment.78 healthy individuals who underwent physical examinations in Fuling Hospital Affiliated to Chongqing University were regarded as the control group.Real-time fluorescence quantitative PCR(qRT-DCR)method was applied to detect serum LncRNA HOTAIR and LncRNA HOXA11-AS levels.Spearman and Pearson methods were used to analyze the correlation between serum LncRNA HOTAIR and LncRNA HOXA11-AS levels,cognitive function,and inflammatory factors in TBI patients.Receiver operating characteristic(ROC)curve was applied to analyze the predictive value of serum LncRNA HOTAIR and LncRNA HOXA11-AS for cognitive impairment in TBI patients.Logistic regression was applied to analyze the impacts of serum LncRNA HOTAIR and LncRNA HOXA11-AS expression on cognitive impairment after TBI.Results Compared with the control group,the expression levels of serum LncRNA HOTAIR(1.75±0.29 vs 1.03±0.15)and LncRNA HOXA11-AS(1.59±0.35 vs 0.99±0.18)in the TBI group were significantly increased,and the differences were statistically significant(t=20.034,13.846,all P<0.05).The cognitively impaired group had significantly higher serum LncRNA HOTAIR,LncRNA HOXA11-AS,tumor necrosis factor-α(TNF-α),interleukin 1β(IL-1β)and interleukin 6(IL-6)levels were significantly higher in the cognitive impairment group than in the group without cognitive impairment(t=3.011～9.615),and Montreal Cognitive Assessment(MoCA)scale was considerably lower than that of the no cognitive impairment group(t=17.633),and the differences were statistical significance(all P<0.05).Spearman correlation analysis showed that the expression levels of serum LncRNA HOTAIR and LncRNA HOXA11-AS in TBI patients were negatively correlated with MoCA scores(r=-0.515,-0.430,all P<0.001),Pearson correlation analysis showed that the expression levels of serum LncRNA HOTAIR and LncRNA HOXA11-AS were positively correlated with TNF-α,IL-1βand IL-6 levels(r=0.423,0.397,0.452,0.437,0.512,0.390,all P<0.001).The AUC(95%CI)of serum LncRNA HOTAIR and LncRNA HOXA11-AS alone and in combination predicted cognitive impairment after TBI was 0.896(0.822～0.947),0.864(0.784～0.923)and 0.960(0.903～0.988),respectively,the combined predictive value of the two was better than that of individual prediction(Z=2.457,2.998,all P<0.05).Logistic regression analysis showed that elevated expression levels of serum LncRNA HOTAIR and LncRNA HOXA11-AS were risk factors for cognitive impairment in TBII patients,while MoCA score was a protective factor(all P<0.05).Conclusion The levels of serum LncRNA HOTAIR and LncRNA HOXA11-AS have certain value in the functional impairment of TBI patients,and they may participate in the occurrence and progression of cognitive impairment in TBI patients by regulating the levels of inflammatory factors in the body.