1.Clinical efficacy of radical intensity-modulated radiotherapy combined with reduction in dose of prophylactic irradiation in treatment of stage Ⅲ small cell lung cancer
Zhiyan LIU ; Kai JI ; Weishuai LIU ; Lujun ZHAO ; Ping WANG
Chinese Journal of Radiation Oncology 2014;23(2):123-126
Objective To evaluate the clinical efficacy and toxicities of radical intensity-modulated radiotherapy (IMRT) combined with reduction in dose of prophylactic irradiation in the treatment of stage Ⅲ small cell lung cancer (SCLC).Methods A retrospective analysis was performed on the clinical data of 40 patients with stage Ⅲ SCLC who were admitted from January 2010 to August 2012.The prescribed dose was 60 Gy in 30 fractions to the primary gross tumor volume and was 54 Gy in 30 fractions to the planning target volume.All patients received induction chemotherapy,31 patients received adjuvant chemotherapy,and 22 patients received concurrent chemoradiotherapy;the platinum-based chemotherapy combined with etoposide or teniposide was adopted.Prophylactic cranial irradiation (25 Gy in 10 fractions) was administered to 17 patients.The short-term tumor response was evaluated by RECIST 1.0,and radiation-related toxicities were assessed by CTCAE 4.0.Overall survival (OS),local recurrence-free survival (LRFS),and progression-free survival (PFS) were calculated by Kaplan-Meier method.Results The short-term tumor response rate was 98%.The follow-up rate was 100%.Twenty-two patients were followed up for at least 2 years.The 1-and 2-year OS rates were 84% and 48%,respectively; the LRFS rates were 89% and 85%,respectively; the PFS rates were 61% and 41%,respectively.Grade 0-1 radiation-related pneumonia was observed in 65%(26/40) of all patients,grade 2 in 25% (10/40),grade 3 in 5% (2/40),and grade 5 in 5% (2/40).Grade 0-1 radiation-related esophagitis was observed in 53% (21/40) of all patients,grade 2 in 43% (17/40),and grade 3 in 5 % (2/40).Conclusions Preliminary results from this study suggested that IMRT combined with reduction in dose of prophylactic irradiation is safe and effective in patients with stage Ⅲ SCLC and is worth further evaluation in a large,prospective,randomized study.
2.Combined application of MS-275 and curcumin in inhibiting cell survival signaling pathways and inducing apoptosis of prostate cancer cells
Zhiyan DU ; Ming ZHAO ; Yuanji XU ; Jian MA ; Xiaodan YU
Medical Journal of Chinese People's Liberation Army 1981;0(06):-
Objective Curcumin and MS-275,an inhibitor of histone deacetylase (HDAC),are promising anti-tumor agents. The aim of present study was to investigate the mechanisms of apoptosis induced by combined use of MS-275 in low dosage and curcumin in prostate cancer cell line DU145. Methods MTT assay was used to evaluate the lethal effect on DU145 cells by solitary use of MS-275 and or combined with curcumin. The changes in cell life cycle was detected by flow cytometry. The expressions of the survival signaling pathways were determined by Western blotting. Results Solitary application of MS-275 or curcumin may inhibit the growth of DU145 cells in a time and dose-dependent manner. The combination of MS-275 (1?mol/L) and curcumin (20?mol/L) exhibited obvious cytotoxic effect on cell viability,which was only 45.9% 48h after the combined treatment. Cell cycle assay showed that the combination of MS-275 and curcumin resulted in obvious appearance of sub-G1 phase in DU145 cells,implying that the cell apoptosis had been induced. The results of Western blotting showed that after treatment of MS-275 or curcumin singly,the phosphorylation level of Akt and ERK kinase declined slightly,however,when MS-275 and curcumin were used together,there appeared a prominent inhibitory effect on Akt and ERK kinase,indicated by a sharp decline of their phosphorylation level,and at the same time,the level of cleaved PARP,a hallmark of apoptosis,was increased in DU145 cells. Conclusion Combined use of MS-275 and curcumin may exert a synergistic cytotoxic effect on the viability of DU145 cells,and exhibit an inhibitory activity on Akt and ERK kinases to induce apoptosis.
3.Relationship and clinical significance between mutated BRAF with prophylactic cen-tral-neck nodal dissection in papillary thyroid carcinoma
Yujie ZHANG ; Baoguo LIU ; Zhiyan ZHAO ; Jindong SHENG ; Dongdong FENG
Journal of Peking University(Health Sciences) 2016;48(3):502-506
Objective:To evaluate the molecular diagnosis marker of papillary thyroid carcinoma (PTC),the relationship between lymphatic metastasis of central neck compartment PTC,and the opera-tion indication of prophylactic central neck dissection.Methods:We conducted a retrospective study, including 275 PTC patients and detected their BRAF mutation rates during 201 2 and 201 4 and explored the risk factors of the central node lymphatic metastasis by Logistic regression model.Results:Of the 275 PTC patients,224 (81 .5%)were female and 51 (1 8.5%)were male.BRAF mutational rates were 53.8% (1 48 /275)and lymphatic metastasis 57.8% (1 59 /275).Multivariate analysis showed calcifica-tion (ORadjusted =1 .47,95%CI:1 .1 0 -1 .98,P =0.01 ),tumor diameter (ORadjusted =1 .48,95%CI:1 .04 -2.30,P =0.048)and age (ORadjusted =1 .48,95%CI:1 .04 -2.30,P =0.048)were associa-ted with lymphatic metastasis.In stratified analysis,BRAF mutation (ORadjusted =3.1 9,95%CI:1 .1 8 -9.43,P =0.023 )in clear boarder group and BRAF mutation (ORadjusted =4.84,95% CI:1 .68 -1 3.84,P =0.003)in calcification group were more likely to have lymphatic metastases.Conclusion:Central neck metastasis takes up a high ratio in papillary thyroid cancer patients,BRAF mutation in pa-pillary thyroid carcinoma is a characteristic molecular event.Furthermore,patients with calcification un-der ultrasound detection,lower age group and longer tumor diameter are more susceptible to suffer central neck metastasis.Especially for stratified analysis,non-calcified BRAF mutation or BRAF mutation with clear border under ultrasound detection are more susceptible to suffer central neck metastasis,and radical prophylactic central neck dissection should be carried on for these patients.
4.Post-operative radiotherapy improves survival in patients with soft tissue malignant fibrous histiocytoma
Zhiyan LIU ; Jun WANG ; Ping WANG ; Lujun ZHAO ; Zhiwei FANG ; Ruifeng XUE
Chinese Journal of Radiation Oncology 2009;18(5):398-401
stage, post-operative radiotherapy are prognostic factors in patients with soft tissue MFH. Post-operative radiotherapy may be the best modality in improving the prognosis of MFH.
5.3521 project-based master design of regional health information construction framework
Zhiyan HAN ; Tianmin ZHEN ; Jingliang GU ; Fang ZHAO ; Weijie DOU ; Nan WEN ; Jingli LI ; Xia MA
Chinese Journal of Medical Library and Information Science 2014;(3):19-22
The functional framework of information management system for regional medical and health institutions was established according to the 5 application systems (public health, medical service, medical support, drug supply support and general management ) and the target to develop 2 databases ( a resident electronic health records data-base and a resident electronic medical records database ) and an operational network put forward in the overall framework of health information construction during The National Twelfth-5 Year Plan Period, based on the functional position of health institutions at different levels.The difficulties to realize the target of the national 3521 project and its prospects were pointed out.
6.Studies on library information service model:A visualization analysis
Jingli LI ; Yu XIE ; Tianmin ZHEN ; Jingliang GU ; Fang ZHAO ; Zhiyan HAN ; Kuimeng SONG
Chinese Journal of Medical Library and Information Science 2015;(4):27-31
The distribution of authors, institutions that published papers, and key words in CNKI-covered papers on library information service model was analyzed, which showed that there are a number of high production authors in China engaged in studies on library information service model but the number of cooperative studies is few, aca-demic libraries are active in performing related studies but public libraries seldom participate in such studies, the related studies are focused on the application of information technologies and the personal demands of users.
7.Characteristic Analysis on Polycentric TCM Syndromes in 400 Cases of Children Abnormal Sweating
Zhiyan JIANG ; Jing MA ; Yonghong JIANG ; Zheng XUE ; Jun ZHAO ; Binbin XU ; Weibin CHEN ; Min WU
Chinese Journal of Information on Traditional Chinese Medicine 2015;(7):21-24
Objective To analyze the characteristics of TCM syndromes of children abnormal sweating;To investigate the correlation between diseases and primary and secondary syndromes. Methods Through a multi-center epidemiology investigation, 400 cases were collected to statistically analyze the five TCM syndromes of children abnormal sweating, and characteristics of each syndrome were analyzed. Results In the 400 cases of children abnormal sweating, there were 129 cases (32.25%) of dysfunction of lung-wei pattern, 50 cases (12.50%) of nutrient qi and defensive qi discordance, 84 cases (21.00%) of qi and yin deficiency pattern, 57 cases (14.25%) of dampness heat forced steamed pattern, and 80 cases (20.00%) of qi and yang deficiency pattern. Spontaneous sweating and night sweating were found in the four patterns besides qi and yin deficiency pattern, and night sweating can be mainly found in qi and yin deficiency. Each type is consistent in the syndrome differentiation and cluster analysis. Conclusion Spontaneous sweating and night sweating, each has the certification of yin and yang. Spontaneous sweating can be caused by yin deficiency while night sweating can be caused by yang deficiency. Each pattern of children abnormal sweating has its own syndrome characteristic, which can provide the basis for clinical diagnosis and treatment.
8.Relationship between the curative effect of chemoradiotherapy and brain metastasis in limited-disease small cell lung cancer
Zhiyan LIU ; Ningbo LIU ; Baozhong ZHANG ; Ping WANG ; Zhiyong YUAN ; Lujun ZHAO
Chinese Journal of Clinical Oncology 2015;(15):756-759
Objective:To determine the relationship between the curative effect of chemo radiotherapy and brain metastasis in limited-disease small cell lung cancer (LD-SCLC). Methods:Data of 149 patients with LD-SCLC who had undergone chemoradiother-apy between April 2009 and April 2012 were analyzed. The curative effect of chemoradiotherapy was evaluated using RECIST version 1.1, which includes complete response (CR), partial response (PR), stable disease (SD), and progression of disease (PD). The objective relief includes CR and PR. Survival was analyzed using Kaplan-Meier method.χ2 text was used to analyze the correlation between the factors. Results:The median overall survival (OS) was 20.0 months, and the 3-year OS rate was 33.0%. Brain metastasis occurred in 43 (28.8%) out of the 149 patients. Among the 43 cases, 12 (29.3%), 9 (11.8%), and 22 (68.8%) had CR, PR, and SD/PD, respectively (P=0.007). The curative effect of chemoradiotherapy correlates with the rate of brain metastasis (17.8%vs. 68.8%, P=0.027). Signifi-cant differences were found between the curative effect and the brain metastasis-free survival (BMFS) (P=0.005). The 2-year BMSF for CR patients was 79.5%, and the corresponding 2-year BMSF for PR, SD, and PD patients was 71.9%, 45.8%, and 49.6%, respectively. Further analysis showed that the performance of prophylactic cranial irradiation (PCI) had an important effect on the OS (P=0.007) of patients who achieved objective relief. Conclusion:The BMFS of patients with LD-SCLC who achieved CR after chemoradiotherapy is favorable, with low rate of brain metastasis. Patients who received PCI had a better OS. Thus, we suggest that timely PCI should be considered for the patients who achieved CR.
9.Application of social network analysis in domestic medical and health field and its enlightenments
Xia MA ; Tianmin ZHEN ; Jingliang GU ; Fang ZHAO ; Jingli LI ; Zhiyan HAN ; Weijie DOU ; Nan WEN
Chinese Journal of Medical Library and Information Science 2014;(10):18-21
Social network analysis has been a study hot spot in academic circle in recent years and is applied in several fields.After a brief description of its basic theories and study methods, its application in domestic medical and health field were analyzed with its key study hot spots summarized and its problems pointed out, in order to provide the methods that can learned in domestic medical and health studies.
10.SoLoMo-based mobile service in libraries of medical colleges and universities
Jingli LI ; Tianmin ZHEN ; Fang ZHAO ; Jingliang GU ; Weijie DOU ; Xia MA ; Zhiyan HAN ; Nan WEN
Chinese Journal of Medical Library and Information Science 2014;(10):30-32,43
Mobile service in libraries of domestic medical colleges and universities was investigated.The specific characteristics of specialized courses offered in medical colleges and universities, the special nature of medical sub-jects, and the unique features of medical library users were described with suggestions put forward for expanding the mobile service in libraries of domestic medical colleges and universities.