1.The Development of Ion Beam Bioengineering by Literature Analysis in China
Tao YAN ; Xian-Xian ZENG ; Guan LI ;
China Biotechnology 2006;0(04):-
The ion beam bioengineering study articles for 1994 -2003 years were retrieved, the research material and the level of the research, magazine, the ion source and the fund source were analysed and counted. The results indicate that the ion beam bioengineering of China get a fast development under the support of the nation and the local government and college. The development in the field of microbe is the fastest. in 21st century, the local government and colleges gradually enlarge the support of the ion beam bioengineering, some articles are under the support of enterprise researcher and fund. The contents of these articles mainly about application study. After analysing the data, the future of ion beam bioengineering of China was forecasted.
2.CT and MRI Diagnosis of Ovarian Clear Cell Carcinoma
Xiaoqing SHI ; Yongmei LI ; Chun ZENG ; Jingjie WANG ; Xian LI
Chinese Journal of Medical Imaging 2015;(11):848-853
Purpose To retrospectively analyze and summarize the image features of rare ovarian clear cell carcinoma (OCCC), and to provide basis for clinical diagnosis. Materials and Methods CT and MRI features of 30 cases of OCCC confirmed by pathology were retrospectively analyzed. Sixteen of all the patients underwent pre- and post-contrast CT scan. And 14 patients underwent pre- and post-contrast MRI scans. Results ① CT features: unilateral mass was revealed in 15 cases and bilateral mass was in 1 case. The maximum diameter of the mass ranged from 8 to 23.7 cm, mean (12.86±3.96) cm. One mass was irregular, 4 masses revealed incomplete capsule, and 4 masses had septa in the mass. CT value of cystic part of the mass was 20-30 HU, and which of solid part was 28-53 HU. On post-contrast CT images, the septa and solid component of the mass showed marked enhancement and delay enhancement, while the cystic component showed no enhancement. ② MRI features: Unilateral mass was revealed in 13 cases and bilateral mass was in 1 case. The maximum diameter of the mass ranged from 9.2 to 30.0 cm, mean (14.03±4.72) cm. One mass was irregular, 2 masses revealed incomplete capsule, and 2 masses had septa in the mass. The cystic component showed heterogenous signal intensity on T1WI, and high signal intensity on T2WI. There was no enhancement on post-contrast images. The solid component showed iso-intensity on T1WI, high signal intensity on T2WI, and diffused restricted on diffusion-weighted images. There was markedly enhancement on post-contrast images. ③ Blood supply of the tumor: In 8 cases, the branch of enlarged ipsilateral ovarian artery fed the tumors. In other 16 cases, the masses were surrounded by enlarged ipsilateral ovarian vein. Conclusion The characteristic CT and MRI features of OCCC include: a cystic solid mass with complete capsule; the solid component projects into the cavity, which could be hypervascular and marked enhanced.
4.Comparative analysis of WBC,N%,CRP and PCT detection in bacterial infections
Qingyong ZHANG ; Sheng XIAN ; Jingjing ZENG ; Chunlong LI ; Chunhua LUO
International Journal of Laboratory Medicine 2015;(3):289-290
Objective To investigate and compare the applications of white blood cell count (WBC),neutrophil percentage (N%),C reactive protein (CRP)and procalcitonin (PCT)in the detection of bacterial infections.Methods Patients were randomly recruited in the study,70 patients with bacterial infection disease were recruited in the study as bacterial infection group,81 patients without bacterial infection were enrolled as no infection group.WBC,N%,CRP and PCT were detected,then comparative analysis of test results performed.Results Compared with no bacterial infection group,WBC,N%,CRP and PCT were increased in bacterial infection group(P <0.05),CRP and PCT increased obviously.The positive rate of WBC,N%,CRP and PCT in bacterial infection group was significantly higher than that of no bacterial infection group(P <0.05).In the bacterial infection group,the positive rate of N%,CRP and PCT was significantly higher than that of WBC(P <0.05),the positive rate of CRP was higher than PCT(P <0.05).But the positive rate of CRP was relatively high,and PCT was low in no bacterial infection group,suggesting that the false positive rate of CRP was higher,while that of PCT was lower,which had higher specificity.Conclusion WBC,N%,CRP and PCT all have clinical value for bacterial infections diagnosis.For the diagnosis of bacterial infections,N%,CRP and PCT is superior to WBC.CRP is more sensitive,but less specific,therefore,PCT with higher specificity was more suitable in the diagnosis of bacterial infections.
5. Influence of nape acupuncture therapy on swallowing function of patients with cerebral infarction
Medical Journal of Chinese People's Liberation Army 2019;44(4):322-326
Objective To observe the influence of nape acupuncture therapy on swallowing function of patients with cerebral infarction. Methods Eighty patients with dysphagia after cerebral infarction were recruited and randomly allocated to the nape acupuncture group and the control group, 40 each group. Both groups were given general medicine therapy and swallowing functional training, while the nape acupuncture group was given nape acupuncture based on the control group, and fiberoptic nasopharyngoscopy was used for the swallowing function before and after treatment. Rosenbek Penetration-Aspiration Scale (PAS) score of 5ml pudding food, 5ml and 10ml liquid food, and the scores for bedside water-swallowing test and standardized swallowing assessment (SSA) were obtained. Before and after treatment, the differences between the two groups were identified respectively. Results After treatment, the scores of SSA and PAS of swallowing of 3 kinds of food in both groups were significantly improved compared with those before treatment (P<0.05). The improvement of SSA and PAS scores of 5ml and 10ml liquid food in the nape acupuncture group were superior to the control group (P<0.05). The total effective rate of the nape acupunture group was significantly higher than that of control group (χ2=5.00, P<0.05). Conclusion Nape acupuncture therapy may significantly improve the swallowing function of patients with dysphagia following cerebral infarction.
6.Construction and Application of Space Resource Course Based on Network Platform of World University Town: Case Study of Community Rehabilitation Course
Zhian LUO ; Dan WANG ; Fusheng LI ; Dexin ZENG ; Xian LONG
Chinese Journal of Rehabilitation Theory and Practice 2013;19(2):196-198
Educational informationization is the focus of education and teaching reform. World University Town provided a very good platform for information and network teaching. This paper, taking the community rehabilitation course as an example, introduced the function ofWorld University Town in course construction and described the concepts, ideas, procedures and application effect.
7.Identification of chemical components of mahuang decoction by GC-MS and UPLC-Q-TOF-MS.
Rui LI ; Cen ZENG ; Ping WANG ; Xian-Li MENG ; Yong ZENG
China Journal of Chinese Materia Medica 2014;39(4):704-709
Since the polyjuice potion ingredient is complex, we need to develop an analysis method with well separation and high stability to perform qualitative analysis. After dividing chemical components of Mahuang Decoction into fat-soluble and water-soluble constituents by gradient extraction, GC-MS was used to analyze the chemical components of the ethyl acetate extraction. The results showed that forty compounds had been identified by NIST MS search 2.0 standard mass spectrometry Library and literatures. Next, UPLC-Q-TOF-MS was applied to idendify the chemical components of the water extraction. The results showed that thirty-nine compounds had been identified by MZmine-2.9.1, Isotope Pattern, fragmentation regularity of mass spectrometry and literatures. This experiment will provide evidences for elucidation of the effective substance in Mahuang decoction and can be used as a simple, shortcut method for analysis and identification for the polyjuice potion.
Chromatography, High Pressure Liquid
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methods
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Ephedra
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chemistry
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Ephedra sinica
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chemistry
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Gas Chromatography-Mass Spectrometry
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methods
8.Relationship between TMPRSS2: ERG and the pathological grade of prostate cancer.
Fa-xian YI ; Hong LI ; Qiang WEI ; Xiang LI ; Hao ZENG
National Journal of Andrology 2015;21(10):887-891
OBJECTIVETo study the relationship between TMPRSS2: ERG gene fusion and the pathological grade of prostate cancer (PCa).
METHODSWe collected fresh prostatic tissue samples from 62 patients with PCa and another 10 with benign prostatic hyperplasia ( BPH) and included 9 cancer cell strains as the control. We examined the TMPRSS2:ERG fusion gene in the PCa samples by nest RT-PCR, compared the Gleason scores between the TMPRSS2:ERG-positive and -negative cases, and analyzed the association of TMPRSS2: ERG fusion with the pathological features of PCa.
RESULTSThe TMPRSS2: ERG fusion gene was detected in 28 (45.16%) of the PCa cases, but in none of the 10 BPH cases or the 9 cancer cell strains. No statistically significant differences were found in the Gleason scores between the TMPRSS2:ERG-positive and -negative cases (Z = -0.609, P = 0.542), but the primary Gleason score was markedly higher in the former than in the latter (Z = -2.600, P = 0.009). Univariate logistic regression analysis showed that TMPRSS2:ERG was associated with the cribriform growth pattern (OR = 6.250, P = 0.002), foamy gland morphology (OR = 6.666, P = 0.023), and signet-ring cells (OR = 3.240, P = 0.035), but multivariate logistic regression analysis manifested that it was associated with the cribriform growth pattern only (OR = 3.750, P = 0.033).
CONCLUSIONTMPRSS2:ERG gene fusion was associated with higher pathological grades of prostate cancer.
Gene Fusion ; Humans ; Male ; Oncogene Proteins, Fusion ; genetics ; Prostatic Hyperplasia ; genetics ; Prostatic Neoplasms ; genetics ; pathology
9.Detection of the expression level of Toll-like receptor3 by establishing real-time fluorescence quantitative method
Zai-Xing YANG ; Yan LIANG ; Chang LI ; Xian-Ming ZENG ; Ye ZHU ; Ren-Qian ZHONG ;
Chinese Journal of Laboratory Medicine 2003;0(10):-
Objective To establish a specific fluorescence quantitative method for determining the mRNA expression of Toll-like receptor3(TLR3)in peripheral blood mononuclear cells(PBMCs).Methods Using the Beacon Designer 2.1 software,specific primers and Taqman-MGB probe were designed.The plasmid pMD18-T-TLR3 was constructed as calibrator and the amplified fragment was obtained by reverse- transcript-PCR(RT-PCR).RNA quantification based on cycle threshold values(Ct)was used to establish the standard curve.According to which,the TLR3 mRNA levels in 30 normal individuals,20 patients with primary biliary cirrhosis(PBC)and 20 ones with chronic liver cirrhosis induced by HBV were calculated automatically by software after the fluorescence of PCR product was detected continuously during amplification.Results The linear detection range of the assay for TLR3 gene and ?-actin was 10~2-10~8(r= -0.9974)and 10~3~10~8(r=-0.9984),respectively.The coefficient of variation of both intra-and inter- assay reproducibility for high concentration sample were 6.7% and 8.7%,respectively,and those for low concentration sample were 12.3% and 14.0%.The TLR3 mRNA expression level ranges from 3.46?10~2- 4.51?10~3 copies/?g RNA,4.92?10~2-1.42?10~4 copies/?g RNA and 2.58?10~2-7.17?10~3 copies/?g RNA for 30 healthy individuals,20 PBC patients and 20 ones with chronic liver cirrhosis induced by HBV, respectively.Conclusion We have successfully set up a FQ-RT-PCR method for detecting TLR3 mRNA, which may be used as an excellent tool for the clinic and basic study on the expression of TLR3 gene.
10.Clinical application of incision cataract extraction after manual fragmentation and emulsification of nucleus for traumatic lenssubluxation and cataract
Xian-Guo, ZENG ; Shou-Guo, ZHONG ; Jing-Ping, FENG ; Qiang-Bing, DENG ; Li, GAO
International Eye Science 2015;(4):699-700
AIM: To observe the surgical effects of the taumatic lens subluxation and cataract after manual fragmentation and emulsification of nucleus and foldable intraocular lens implantation.
METHODS: A 3. 0mm tunnel limbus incision was operated through the predicted bulbar conjunctiva and sclera on 26 cases ( 26 eyes ) with taumatic lens subluxation ( suspensory ligament rupture range less than 120 ) and cataract (Ⅰ ~ Ⅲ) . And after the manual fragmentation and emulsification of nucleus, foldable intraocular lens was implantated. Intraocular lens loop was imbedded in the middle of the lens zonular ligament breakup to reset the pouch. The surgical complications and postoperative vision changes were observed.
RESULTS:Three month after operation, 22 eyes had a intraocular lens centric position taking up 85% of the whole. Four eyes had a slightly eccentric position ( 1 ~2mm), taking up 15% of the whole. 21 eyes had their visual acuity 0. 5~0. 8, taking up 81% of the whole. Five eyes of visual acuity was 0. 2~0. 8. Within 24h intraocular pressure of 12 eyes (46%) after operation were elevated, and returned to normal after 2~7d. There was no severe complication during operation and postoperation.
CONCLUSION: The manual fragmentation and emulsification of nucleus and foldable intraocular lens implantation of the traumatic lens subluxation and the cataract through the 3. 0mm corneal sclera limbus tunnel incision is a simple and effective surgery.