1.SVEP1, PKHD1, and P53 expression in primary liver cancer and its clinical significance
Yalei WANG ; Zhiqiang QIU ; Lu CHEN ; Runfen CHENG ; Jingyi WANG ; Baocun SUN
Chinese Journal of Clinical Oncology 2019;46(3):105-110
Objective: To detect the expression of SVEP1, PKHD1 and P53 in primary liver cancer tissues by immunohistochemistry for predicting the recurrence of liver cancer. Methods: The clinical data of 103 patients with primary liver cancer who underwent surgical resection at Tianjin Medical University Cancer Institute and Hospital were gathered from January 2013 to January 2014 and analyzed retrospectively. Expression values of three different proteins were used to develop separate immunohistochemical scores for the prog-nosis of recurrence in patients. The patients were classified into either a high-risk or a low-risk group based on their immunohisto-chemical scores through ROC curve analysis. The difference in recurrence ratio between the two groups was then compared using the common research index of disease-free survival (DFS). Results: The median age of the total patients was 55 years (range 21-88 years), the median AFP level was 70.6 (range 1.03-718840.0) μg/L, the median CA19-9 level was 22.89 (range 0.6-1000.0) kU/L, and the medi-an tumor size was 4.5 (1.0-27.0) cm. The expression levels of SVEP1, PKHD1, and P53 in primary liver tumors were detected by immu-nohistochemistry and assigned separate immunohistochemical scores. The areas under the ROC curves of the immunohistochemical scores of SVEP1, PKHD1, and P53 were 0.861, 0.829, and 0.716, respectively. The critical values of SVEP1, PKHD1, and P53 were 4, 4, and 1 point, respectively (P<0.001). The three-year DFS rates among the SVEP1 high-risk (expression≤4 points) and low-risk groups (expression>4 points) were 4.1% and 51.7%, respectively. Similarly, the three-year survival rates among the PKHD1 high-risk (expres-sion≤4 points) and low-risk groups (expression>4 points) were 5.3% and 51.9%, respectively. The three-year DFS rates among the P53 high-risk (expression>1 point) and the low-risk group (expression≤1 point) were 6.3% and 27.3%, respectively. The survival differenc-es between all the pairs were statistically significant (P<0.001,<0.001, and 0.003 respectively). When PKHD1 was used in combination with SVEP1, the ROC curve had an area of 0.897 (P<0.001) with a sensitivity of 76.5% and a specificity of 94.4%. Conclusions: The accu-racy of P53 data for predicting primary liver cancer recurrence is insufficient and therefore it is not recommended for use. SVEP1 and PKHD1 data achieve sufficient accuracy for predicting the recurrence of primary liver cancer. Since SVEP1 data impart a higher specifici-ty and PKHD1 data impart a higher sensitivity to the prognosis scores, the combined use of the two markers is better than being used individually.
2.Design and Implementation of Medical Wireless Gateway Based on Several Communication Protocols.
Yipeng XING ; Guojing WANG ; Yalei LU ; Weidong WANG
Chinese Journal of Medical Instrumentation 2018;42(1):31-34
We designed a multi-functional medical wireless gateway based on Zigbee Bluetooth and WiFi Technology to monitor the medical physiological status of subjects in real time. On the one hand, the gateway acts as the Zigbee coordinator, organizing the Zigbee network and controlling multiple medical digital terminals. On the other hand, the gateway implements a heterogeneous wireless network. It establishes the communication between the medical digital terminals and the host computers or hand-held devices. In addition, we developed a display interface based on the LabVIEW platform, implemented the display and storage of various physiological data on the host computer, and verified the availability of the medical wireless gateway.
Computer Communication Networks
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Monitoring, Physiologic
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Wireless Technology
3.A preliminary Study on Clinical Characteristics and Toxicology Mechanism of Tripterygium wilfordii Induced Liver Injury
Tao YANG ; Yalei ZHANG ; Tingting ZHU ; Lu XING ; Yuting LIU ; Chenghai LIU
World Science and Technology-Modernization of Traditional Chinese Medicine 2018;20(11):2027-2032
Tripterygium wilfordii Hook. F. (TWF) belongs to celastraceae under Tripterygium family. It is a traditional Chinese medicine with a variety of pharmacological effects such as anti- inflammatory, analgesic, anti- tumor, immunomodulation and so on, which is applied for many diseases because of its significant effects. However, its toxic and side effects frequently occur, especially liver injury, affecting its safety in clinical practice. In this paper, the clinical characteristics of liver injury of TWF were preliminarily explored by combining with literature analysis and single center clinical epidemiological investigation. Furthermore, the main toxic constituents and mechanism of TWF are reviewed. Finally, the key issues have been raised and analyzed on clinical diagnosis, clinical characteristics and toxicological mechanism of liver injury of TWF, and brought forward the future research directions.