1.The Pre-attentive Processes of Chinese Tones Transmitted by Cochlear Implant Users and Normal Hearing Subjects
Lijun YANG ; Keli CAO ; Chaogang WEI
Journal of Audiology and Speech Pathology 2009;17(3):271-275
Objective Event related potentials (ERP), especially mismatch negativity (MMN), as index, was utilized to study the processing of Chinese tones recognized by cochlear implant (CI) users and normal hearing subjects. Methods The auditory materials were Chinese words with four tones consisting of three different oddball blocks. The ERP and MMN of CI users and normal hearing subjects were recorded and analyzed in relation to the discrimination of those tones as tested. Results The ERP and MMN of CI users and normal hearing subjects were presented. The MMN of CI users includes two negative waves: the first negative wave (MMN1) occurred approxi-mately 100 ms, and the second wave (MMN2) at 300 ms. The MMN of normal hearing subjects includes two nega-tive waves too: the first negative wave (MMN1) occurred approximately 150 ms, and the second wave (MMN2) al-so at 300 ms. The MMN1 peak latency of CI users was obviously shorter than that of normal hearing subjects and the MMN2 peak latency of CI users shorter than that of normal hearing subjects too, but the difference of MMN2 peak latency between CI users and normal hearing subjects was not as significant as that of MMN1. Conclusion In the preattentive stage, CI users could process Chinese tones as normal hearing subjects, but compared with the pro-cessing of normal hearing subjects, there are some differences in the processing of CI users.
2.The expression and prognostic significance of Fibulin-5 in gastric carcinoma
Chaogang YANG ; Xiaohua LENG ; Jinxuan HOU ; Bin XIONG
Chinese Journal of General Surgery 2017;32(3):247-250
Objective To study the expression of Fibulin-5 in gastric cancer and its correlation with the prognosis of gastric cancer.Methods Tissue chips from 90 gastric cancer cases were used to study the expression of Fibulin-5 protein in cancer tissue and para-carcinoma tissue by immunohistochemistry,and analyze the correlation of Fibulin-5 expression and clinical pathological characteristics.Results The expression of Fibulin-5 in gastric cancer tissue was higher than that of para-carcinoma tissue [cytoplasm:(6.2±4.2) vs.(5.1 ±3.7);nucleus:(7.2 ±3.8) vs.(4.9 ±2.5),all P<0.05],which was positively related with patient's age (r =0.213,P =0.044) in the cytoplasm of cancerous tissue.The expression of Fibulin-5 in the cytoplasm of cancerous tissue was negatively related with patient's overall survival (25% vs.56%,P =0.027),which was an independent predictor (P =0.037).Conclusion Fibulin-5 is an independent prognostic factor of gastric cancer,its expression might be related with shortend patient's survival time.
3.Clinical research progress of acupuncture and moxibustion and Tuina therapy in the treatment of hemiplegia due to cerebral apoplexy
Chaogang WU ; Zheng WEN ; Wei ZHANG ; Xuyin YANG ; Jingyang LIU
International Journal of Traditional Chinese Medicine 2020;42(6):612-615
This paper reviews the clinical researches on acupuncture and moxibustion and Tuina therapy for hemiplegia, due to cerebral apoplexy. It is found that acupuncture and Tuina therapy mainly includes acupuncture, moxibustion, massage, electroacupuncture, as well as the combination of acupuncture and Chinese medicine, acupuncture and massage therapy or the combination of modern rehabilitation technics. The researches showed that all treatments have good clinical effect and few adverse reactions. However, most of the researches focus on self-control, and lacks comparability. There stilllacks strict RCT and unified standard of operation scheme. Besides, the researches on the mechanism should be strengthened.
4.The value of biparametric MRI in the detection of prostate cancer
Yueyue ZHANG ; Wenlu ZHAO ; Chaogang WEI ; Tong CHEN ; Mengjuan LI ; Shuo YANG ; Shuangxiu TAN ; Beibei HU ; Qi MA ; Yongsheng ZHANG ; Boxin XUE ; Junkang SHEN
Chinese Journal of Radiology 2019;53(2):109-114
Objective To explore the difference in efficacy between multiparametric MRI (Mp-MRI) based on prostate imaging reporting and data system version 2 (PI-RADS v2) and abbreviated biparametric MRI (Bp-MRI) in detecting prostate cancer (PCa) and clinically significant prostate cancer (csPCa), and to evaluate the consistency of image interpretation between different readers. Methods The imaging, pathological and clinical data of patients with prostatic Mp-MRI in our hospital from February 2015 to June 2018 were retrospectively analyzed. At the beginning, 250 patients were randomly selected. Two radiologists visually evaluated the images of those patients using two 5-point scoring schemes based on Mp-MRI and Bp-MRI. The remaining cases were independently proceeded by one of the radiologists using two schemes respectively. Weighted Kappa test was used to assess the consistency of the results interpreted by the two radiologists. The receiver operating characteristic (ROC) curve was used to evaluate the efficiency of the two scoring schemes in detecting PCa and csPCa, and with Z test to investigate whether there was any difference in detection efficiency between the two schemes. Results Nine hundred and seventy eight patients were eventually enrolled in the study. The results of the consistency assessment showed that there was good agreement between the two radiologists, whether using Mp-MRI or Bp-MRI, with the weighted Kappa coefficient of 0.800 and 0.812, respectively. The ROC curve analysis showed that the area under the curve (AUC) of PCa detected by Mp-MRI and Bp-MRI was 0.873 and 0.879, respectively, and the AUC of csPCa detected was 0.922 and 0.932, respectively. In addition, there was no statistically significant difference between the AUC of PCa and csPCa detected by the two schemes (P>0.05). Conclusion The Bp-MRI scoring scheme has good stability in the evaluation of benign and malignant prostate, and its detection efficiency of PCa or csPCa is not lower than that of standard Mp-MRI based on PI-RADS v2.