1.Prenatal assessment of normal fetal pulmonary grey-scale and lung volume by three-dimensional ultrasonography
Zhen HAN ; Xiaoye ZHENG ; Hongwei YAN ; Wenli GOU
Journal of Pharmaceutical Analysis 2010;22(4):270-272
Objective To quantitatively analyze the fetal lung echo and right lung volume in the third trimester by real-time three-dimensional ultrasound (3-D US) and evaluate the feasibility of fetal lung maturity. Methods A total of 732 women with normal singleton pregnancies between 28 and 42 weeks of gestation underwent ultrasound examination. The 3-D US equipment with a 3.5-5MHz transabdominal transducer was used for the fetal biometric measurement. The echogenicity ratio between fetal lung and liver was compared. The fetal lung volume was calculated by the rotational multiplanar technique for volume measurement (VOCAL). Results The right fetal lung volume increased with the increase of gestational age with a linear positive correlation (r=0.884, P<0.01). After 34 weeks, the echogenicity ratio of fetal lung to liver was more than 1.1. Conclusion The echogenicity of lung/liver and fetal lung volume could be used as normal fetal predictable indicators for fetal lung maturity.
2.Major factors that influence the development of traditional Chinese medicine culture creative industry in Shandong Province
Yan SONG ; Zhiyan HAN ; Kuimeng SONG ; Weijie DOU ; Tianmin ZHEN
Chinese Journal of Medical Library and Information Science 2016;25(12):30-33
It is one of the important tasks to promote the development of traditional Chinese medicine culture crea-tive industry in constructing the culture-rich Shandong Province. The major factors that influence the development of traditional Chinese medicine culture creative industry in Shandong Province and the ranks of their importance were thus analyzed by questionnaire survey and hierarchy analysis, respectively. Certain suggestions were put for-ward for the development of traditional Chinese medicine culture creative industry in Shandong Province.
3."Analysis on Medical Industry Strategies in ""Internet + Medical"" Background"
Yan SONG ; Zhiyan HAN ; Kuimeng SONG ; Weijie DOU ; Tianmin ZHEN
Journal of Medical Informatics 2017;38(5):52-55
The paper objectively analyzes the opportunities and challenges of Internet + medical,and puts forward relevant strategies and recommendations for deeply integratingInternet +into the traditional medical industry in several aspects,including strengthening the construction of Internet infrastructure in the medical industry,regulating the market access and improving the industry standards,as well as establishing and improving relevant supporting laws,regulations and policies.
4.Dimethylated arsenics-promoted skin and lung tumorigenesis through the induction of oxidative stress in mice
Yan, AN ; Hua, YIN ; Zhen, LI ; San-xiong, WANG ; Zheng-hui, WANG ; Bu-lin, HAN ; Xian-zhen, KONG
Chinese Journal of Endemiology 2009;28(1):10-13
Objective To examine the possibility that a candidate causal species of the skin and lung tumor promotion induced by exposure to dimethylarsinic acid(DMAv)and dimethylarsinous acid(DMAⅢ),caused by the induction of oxidative stress in mice.Methods Two stages lung tumotigensis animal model induced by lung tumor initiator(4-nitroquinoline 1-oxide,4NQO)and promoter(DMAv)in ddY mice,was used to examine the effect of(-)epigallocatechin gallate(EGCG)on DMAv promoting lung tumorigenesis.Two stages skin tumorigenesis animal model induced by skin tumor initiator[dimethylbenz(α)anthracene,DMBA]and promoter(DMAⅢ)in hairless mice.was used to examine the effects of DMAⅢ in skin tumorigenesis and histopathology.The goxo-2'-deoxyguanosine (8-oxodG)in lung and epidermis were analyzed by HPLC.Results The incidence of lung tumors and 8-oxodG level of lung tissue decreased significantly in 4NQO+DMAv+EGCG group.compared with 4NQO+DMAv group (0.89±0.30 vs 4.00±0.82,1.21±0.09 vs 1.53±0.32,P<0.01).The incidence of severe keratosis in DMBA+ DMIⅢ group was more than that in DMBA group(25 vs 10,P<0.05).An significant elevation of 8-oxodG in epidermis was observed in 0.5 h[(1.67±0.17)/105 dG],1.0 h[(1.62±012)/105 dG],2.0 h[(1.66±023)/105dG], 3.0 h[(1.60±0.15)/105 dG],compared with 0 h[(1.25±0.11)/105 dG],being significant(P<0.05).Conclusion tumor promotion due to DMAv administration is mediated by DMAⅢ through the induction of oxidative stress.
5.Dynamic expression of peroxiredoxin 6 in retina of experimental diabetic rat
Hui, QI ; Ya-zhen, WU ; Yan, JIN ; Ning, HAN ; Bin, FAN
Chinese Journal of Experimental Ophthalmology 2011;29(4):332-335
Background Oxidative stress plays an important role in the pathogenesis of diabetic complications.Peroxiredoxin 6(Prx6) is a doubly-functional protein.and its ability to eliminate phospholipid hydroperoxides is essential. Objective The aim of this study was to investigate the dynamic expression of Prx6 in the retina of streptozotocin(STZ)-induced diabetes and explore its correlation with the progression of diabetic retinopathy. Methods Diabetes was induced by an intraperitoneal injection of streptozotocin(STZ)in 48 clean Wistar rats.The rats were sacrificed at 1,2,and 4 months after the injection of STZ,and expressions of Prx6 protein and Prx6 mRNA in the retina was determined by immunohistochemistry and reverse transcription polymerase chain reaction.Another 12 matched normal Wistar rats were used as the control group. Results The resuh of immunohistochemistry showed that Prx6 protein was expressed in the cytoplasm of the outer nuclear layer(ONL)and inner nuclear layer(INL)in normal rats,and low expression of Prx6 protein was observed in the ganglion cell layer (GCL).In the first month,Prx6 protein was strongly expressed in the INL and the ONL of diabetic rats.However.two and three months after STZ administration,the expression of Prx6 protein was absent in the retina,showing a considerable difference among different course groups(F=22 967.63,P<0.05).Furthermore,the expression trend of Prx6 mRNA in the retina was similar to that of the Prx6 protein with a significant difference among different course groups(F=942.84,P<0.05). Conclusion It is conceivable that normal maintenance of Prx6 expression may be important to the prevention of diabetic retinopathy.We hypothesize that oxidative impairments in the retina that develop over time may partly contribute towards the development of retinal dysfunction,which eventually leads to retinal degeneration during the progressive phase of STZ-induced diabetes in adult rats.
6.The 2 nd phase of research for the visual cortical functional mediating stereopsis in children anisometropic amblyopia:evidence from fMRI
Lei, YANG ; Zhen-Guo, YAN ; Hong, CAO ; Yue-Dong, HAN ; Qiang-Hua, MA ; Jian-Jun, YE
International Eye Science 2015;(8):1413-1415
AIM:To evaluate the recovery about the visual cortex function of stereopsis in anisometropic amblyopia after regular amblyopia treatment 6, 12 and 18mo with blood oxygenation level dependent - function magnetic resonance imaging techniques ( BOLD-fMRI) .
METHODS: In this study, self-controlled study before and after treatment was used, and blocks-designed fMRI was performed on 11 children which was the first phase of research for amblyopic treatment. Functional MRI data were processed by using SPM8 which based on the Matlab 7. 12. 0. 635. Through the hypothesis drive method, the differences range of activated area in each group were compared by before and after amblyopia treatment matched t-test.
RESULTS: The functional area that was left occipital lobe (BA18), middle occipital gyrus (BA19), limbic lobe (BA19), lingualis gyrus of the right occipital lobe (BA17) and the bilateral parietal lobe ( BA7 ) expanded after amblyopia treatment 6, 12mo, compared those treatment phase, mean t value was 1. 5762, 1. 6856 respectively (P<0. 001). However, the difference of activated intensity was lower after 18mo, mean t value was 1. 1473 (0. 001
CONCLUSION: In children anisometropic amblyopia, the speed of function reconstruction about visual cortical functional mediating stereopsis increase slowly after amblyopia treatment 1a.
7.CNKI-based visual analysis of reform in public hospitals
Xia MA ; Tianmin ZHEN ; Zhiyan HAN ; Nan WEN ; Weijie DOU ; Jingli LI ; Yan SONG ; Kuimeng SONG
Chinese Journal of Medical Library and Information Science 2015;(2):28-33
The key words, social network and author cooperation network in papers ( published in 2003-2014 ) on reform in domestic public hospitals were analyzed using Ucinet and CiteSpace visual softwares with CNKI as the data source.The current situation in reform in domestic public hospitals was revealed by mining its research hotspots, progress and author cooperation .Some suggestions were put forward for strengthening the reform in domestic public hospitals .
8.Comparison of the clinical efficacy of different treatments based on radical surgery in stage Ⅰb2 andⅡa2 cervical cancer:a prospective randomized control study
Xue LI ; Weimin KONG ; Chao HAN ; Zhen YAN ; Hui ZHAO ; Weiyuan ZHANG ; Jiandong WANG
Chinese Journal of Obstetrics and Gynecology 2016;51(7):524-529
Objective To compare the clinical efficacy of different treatments based on radical surgery in stage Ⅰ b2 and Ⅱ a2 cervical cancer through prospective randomized controlled study. Methods A total of 133 patients with stage Ⅰb2 and Ⅱa2 cervical cancer treated at Beijing Obstetrics and Gynecology Hospital of Capital Medical University during January 2009 to December 2012 were enrolled and randomly assigned to receive one of the following three treatments: preoperative intracavitary irradiation (PII) group, radical hysterectomy (RH) group, and neoadjuvant chemotherapy (NACT) group. Operation method included uterine extensive resection, pelvic lymph node excision, with or without para-aortic lymph node resection. The recent curative effect and side effect of preoperative treatment were observed. The operation time, intraoperative blood loss, surgical complications, postoperative pathological risk factors and postoperative adjuvant therapy and side effect, the survival situation were evaluated among the 3 groups. Results (1)The response rates were 88%(37/42) and 82%(37/45) respectively of the PII group and NACT group. The difference was insignificant (P=0.528). Side effects were less in the PII group. Only 5 patients (12%,5/42) had slight gastrointestinal reaction. Myelosuppression and gastrointestinal reaction in NACT group were 76%(34/45) and 67%(30/45) respectively, which were more serious than that in group PII group (P<0.05). (2) Intraoperative blood loss and operation time in PII group [(678 ± 239)ml and(181 ± 39)minutes] and NACT group [(625 ± 137)ml and(168 ± 25)minutes] had a decreasing trend compared with that in RH group [(711 ± 319) ml and (202 ± 64) minutes], but the differences were no significant (P>0.05). NACT group could shorten operation time compared with the RH group (P<0.05). The lymph node metastases rate were 30%(14/46), 29%(12/42)and 29%(13/45)and the deep stromal invasion rate were 22%(10/46), 31%(13/42)and 31%(14/45)in RH group, PII group and NACT group respectively (all P>0.05). The lymph-vascular space involvement (LVSI) in NACT group was significantly lower than that in RH group [31%(14/45) vs 57%(26/46), P=0.015]. The number of patients with histological risk factors in NACT group was higher thanthat in RH group [27%(12/45)vs 9%(4/46),P=0.024]. All surgery were successfully completed and no treatment-related deaths occurred in three groups. The incidence of 3-4 grade adverse reactions evaluated by the common terminology criteria for adverse event (CTCAE) was 13% (6/46), 14% (6/42), 18% (8/45) in RH group, PII group and NACT group respectively (P=0.855). Three-year disease free survival (PFS) were 74.0%, 78.5%and 80.0%, and 3-year overall survival (OS) were 80.4%, 83.3%and 84.4%in RH group, PII group and NACT group respectively (all P>0.05). Conclusions The recent curative effect of PII and NACT were similar. They couldn′t improve 3-year of PFS and OS of the patients withⅠb2 andⅡa2 stage cervical cancer. But NACT can reduce the operation difficulty and can reduce the incidence of postoperative pathological risk factors, which could reduce postoperative adjuvant therapy.
9.Significance of expression of MUC1 in primary liver carcinoma and cirrhotic liver tissues
Shifang YUAN ; Ling WANG ; Kaizong LI ; Kefeng DOU ; Zhen YAN ; Wei HAN ; Yingq ZHANG
Chinese Journal of General Surgery 2001;0(09):-
Objective To investigate the expression of MUC1 in primary liver carcinoma (PLC) and in cirrhotic liver tissue and its clinical significance in the diagnosis and immuotherapy of PLC. Methods The expression of MUC1 was examined by immunohistochemical analysis in 43 samples of primary liver carcinoma (PLC) , incluing 34 samples of hepatocellular carcinoma (HCC), 9 samples of cholangiocarcinoma (CC) ;and 12 samples of cirrhotic liver tissue and 6 samples of normal liver tissues. Results Immunohistochemical analysis showed over- expression of MUC1 in PLC , which aberrantly localized in the cancer cell membrane; while expression of MUC1 was detected only in 2 cirrhotic liver samples,and no expression in normal liver tissue. The expressional level of MUC1 in PLC was significantly higher than that in cirrhotic and normal liver tissue ( P 0.05),but the expressional levels between with portal cancer emboli group and without portal cancer embloli group was significant difference( P