Modulating the default mode network: Antidepressant efficacy of transcutaneous electrical cranial-auricular acupoints stimulation targeting the insula.

BACKGROUND: Transcutaneous electrical cranial-auricular acupoint stimulation (TECAS) is a novel non-invasive therapy for major depressive disorder (MDD) that stimulates acupoints innervated by the trigeminal and auricular vagus nerves. However, there are few neuroimaging studies involving the TECAS for the treatment of MDD. Therefore, this study aimed to investigate the treatment response and neurological effects of TECAS using resting-state functional magnetic resonance imaging (rs-fMRI). METHOD: A total of 34 patients with mild-to-moderate MDD and 34 demographically matched healthy controls (HCs) were recruited. After an eight-week treatment the primary outcome was clinical response, defined as a baseline-to-endpoint ≥ 50 % reduction in the 17-item Hamilton Depression Rating Scale (HAMD-17). The low-frequency fluctuations (ALFF) method were used to investigate the brain abnormalities of MDD patients and HCs, and altered brain networks were analyzed between pre- and post-treatment using seed-based functional connectivity (FC) analysis. RESULTS: We found no significant differences in terms of gender, age, and years of education between the two groups. After treatment, the response rate was 58.82 %. Compared to HCs, MDD patients showed lower ALFF values in the left insula(t = -4.298,P < 0.005), the insula-based FC revealed in the right middle frontal gyrus (MFG)/ right superior frontal gyrus, orbital part (ORBsupmed) (t = -5.29,P < 0.005) and the right anterior cingulate gyrus (ACC)were decreased (t = -6.08,P < 0.005). Furthermore, Compared to pre-treatment, abnormal FC values in the ACC /orbital superior frontal gyrus (SFG) (t = 3.42,P < 0.005) and left superior frontal gyrus (SFG)/ supplement motor area (SMA) were enhanced (t = 3.34,P < 0.005). CONCLUSION: TECAS exhibits antidepressant efficacy, particularly influencing the insula-based functional connections within the Default Mode Network (DMN) related to emotion processing in individuals with MDD.

The short term follow-up observation of premature infants with congenital HCMV infections / 中国医师杂志

Objective To investigate correlative complication and disorders in growth of premature infants with congenital CMV infections before one year old.Methods Fifty-eight infected premature infants and sixty control premature infants were followed up prospectively for one year.The differences were compared between two groups with incidence of correlative complication.Physical growth,liver function,neurosonographic and audiologic examination were used to identify the sequelae of CMV infections.Results The numbers of infants with infantile hepatitis syndrome,encephalopathy of premature infant and SNHL were significantly higher in infected group than in control group(x2 =4.52,15.09,12.71,P ＜0.05).No difference between groups was found on physical growth.However,the significant difference between two groups was observed on abnormal for liver function of 3 and 6 months(x2 =8.33,17.28,P ＜ 0.05),neurosonographic after birth and 3 months(x2 =15.09,5.38,P ＜0.05),audiologic examination of 3 and 6 months(x2 =17.01,8.04,P ＜ 0.05).Conclusions These data suggest that congenital CMV infections may be associated with hepatitis syndrome,encephalopathy of premature infant and SNHL in premature infants.Liver function,neurosonograpphic imaging and ABRs were useful in the evaluation of the premature infants with congenital CMV infections.