1.Concerning about the influence of diabetes on the incidence of age-related macular degeneration
Chinese Journal of Experimental Ophthalmology 2011;29(1):1-3
Age-related macular degeneration(AMD)is a kind of degenerative diseases with complex pathogenesis and stimulation of multiple factors.It has become one of the major diseases causing-blindness in the elderly population in China.Recently,some epidemiological findings demonstrated that diabetes mellitus possibly is one of risk factors for AMD,and this will offers a new approach for the prevention and treatment of AMD.Thus,it is very important for US to strengthen the research of mechanism of AMD impacted by diabetes mellitus,pay more attention to the progress of AMD,search for a scientific and rational therapeutic way of improving the prognosis and elevate the quality of life in the patients with diabetes mellitus.
3.Imaging features of coronary sinus and its tributaries in Chinese using multislice computed tomography
Yong SUN ; Xia SHENG ; Jian'An WANG ;
Chinese Journal of Emergency Medicine 2006;0(08):-
Objective To observe the imaging features of coronary sinus (CS) and its tributaries in Chinese by using multislice computed tomography (MSCT).Methods One hundred patients [74 men,26 women,average age (58.10?1.78)] were scanned by MSCT,3D images reconstructed and the vessels courses evaluated.Results The CS and great cardiac vein (GCV),middle cardiac vein (MCV) were visualized in all patients,as well as left posterior vein (LPV) was showed only in 82 patients.The average width of CS was (1.98?0.41),(1.08?0.06)cm,and the average area was (2.144?0.37)cm~2.The diameter of MCV was (0.49?0.04) cm and its angle with CS was (73.98?5.82)?.The GCV remained in the same axis as the CS in the left atrioventricular groove,its average diameter was (0.35?0.03)cm.The LPV's average diameter was (0.33?0.05)cm and its average angle with GCV was (74.32?7.81)?.The MCV and LPV in most of the patients drained to the CS at an angle less than 90?,and this angulation might cause technical difficulties during inserting a left ventricular pacing lead.Conclusion MSCT is a simple and feasible method to visualize the imaging features of CS and its main tributaries,and in the clinical,it can be used to evaluate patient's coronary vein system before cardiac interventional procedure such as left ventricular pacing lead implantation.
4.Biosynthesis of indigo and indirubin by whole-cell catalyst designed by combination of protein engineering and metabolic engineering.
Yang LI ; Junge ZHU ; Jianjun WANG ; Huanzhang XIA ; Sheng WU
Chinese Journal of Biotechnology 2016;32(1):41-50
The phenylacetone monooxygenase, isolated from Thermobifida fusca, mainly catalyzes Baeyer-Villiger oxidation reaction towards aromatic compounds. Met446 plays a vital role in catalytic promiscuity, based on the structure and function of phenylacetone monooxygenase. Mutation in Met446 locus can offer enzyme new catalytic feature to activate C-H bond, oxidizing indole to finally generate indigo and indirubin, but the yield was only 1.89 mg/L. In order to further improve the biosynthesis efficiency of the whole-cell catalyst, metabolic engineering was applied to change glucose metabolism pathway of Escherichia coli. Blocking glucose isomerase gene pgi led to pentose phosphate pathway instead of the glycolytic pathway to become the major metabolic pathways of glucose, which provided more cofactor NADPH needed in enzymatic oxidation of indole. Engineering the host E. coli led to synthesis of indigo and indirubin efficiency further increased to 25 mg/L. Combination of protein and metabolic engineering to design efficient whole-cell catalysts not only improves the synthesis of indigo and indirubin, but also provides a novel strategy for whole-cell catalyst development.
Escherichia coli
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genetics
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metabolism
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Glucose
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metabolism
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Indigo Carmine
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metabolism
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Indoles
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metabolism
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Industrial Microbiology
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methods
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Metabolic Engineering
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Metabolic Networks and Pathways
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Protein Engineering
6.Non-specific steroid cell tumor of the ovary with myelolipoma.
Jin WANG ; Cai-xia SHENG ; Jing-yao XU
Chinese Journal of Pathology 2005;34(9):609-610
Adrenal Gland Neoplasms
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metabolism
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pathology
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surgery
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Adult
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Diagnosis, Differential
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Female
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Hormones, Ectopic
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secretion
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Humans
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Inhibins
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metabolism
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Keratin-8
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metabolism
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Myelolipoma
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metabolism
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pathology
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surgery
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Ovarian Neoplasms
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metabolism
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pathology
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secretion
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surgery
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Vimentin
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metabolism
7."Hypothesis Evaluation and Testing:""Scientific Tests, Pre-Mortem and Post-Mortem Evaluation"", Leading Chinese Medicine Hypothesis into the Scientific Hypothesis---Series of Studies on the Modern Basic Theory of Traditional Chinese Medicine (Part 2-Ⅳ)"
Mingqi QIAO ; Dongmei GAO ; Sheng WEI ; Xiaoru WANG ; Xia LI
World Science and Technology-Modernization of Traditional Chinese Medicine 2014;(11):2286-2295
Around the core issue how to evaluate and test hypothesis, starting from the concept of hypothesis and scientific hypothesis, learning form recent progress and understanding at home and abroad, we have analyzed the type of scientific hypothesis, test methods and pre-mortem and post-mortem evaluation criteria in depth, established scientific vision and discipline ruler, explored the awareness level of the Chinese medicine hypothesis, pointed out the problems and gaps. Whereby, we have analyzed and demonstrated brain regulating five internal organs concept of wholism scientific hypothesis, and proven it belongs to the scientific hypothesis. We were confident that these works mentioned above would lead the theoretical reform changing Chinese medicine hypothesis from traditional description to the nature clarification.
8.How to Build and Evaluate A New Theory? Focusing on The Phenomenon, Explaining and Predicting, Promoting Chinese Medicine Theory from Phenomenon Description to Mechanism Clariifcation--Series of Studies on The Modern Basic Theory of Traditional Chinese Medicine (Part 2-V) (二)
Mingqi QIAO ; Sheng WEI ; Shaolian WANG ; Xia LI ; Rongrong XIN
World Science and Technology-Modernization of Traditional Chinese Medicine 2015;(6):1119-1126
The modernization of Traditional Chinese Medicine (TCM) is urgent need of the modern theory of TCM, is a consensus. But, How to establish and what kind of modern TCM theory, is far from a consensus. Based on the summarization of the common law in the construction of scientific theory, we are trying to give a answer that are expected to form a consensus. Firstly, we have illustrated the trend that the development of TCM theory should learn from the life and medical sciences theory function and value; Secondly, we have proven that TCM and TCM theory belongs to the traditional medicine and theory and pointed out the limitation of the traditional medicine, TCM and its theory. And then we have revealed the inevitable trend of traditional medicine, TCM and its theory development at home and abroad, logically obtained the inevitable choice of constructing the modern TCM basic theory; Lastly, we have analyzed the different discipline new theory construction process and method at home and abroad and discovered the common five steps rule, put forward three principles and five steps of constructing modern TCM basic theory, demonstrated its important role during the theoretical revolution promoting Chinese Medicine theory from phenomenon description to mechanism clarification and the scientific value of Chinese Medicine theory in the domestic and foreign development trend.
9.Meta-analysis of laparoscopic versus open partial nephrectomy
Zhao LUO ; Delin WANG ; Xia SHENG ; Wenbin LI
Chinese Journal of Urology 2013;(6):444-447
Objective To provide Meta-analysis evidence of laparoscopic partial nephrectomy (LPN) vs open partial nephrectomy (OPN) in assisting clinical decision making.Methods By searching CHKD,PUBMED,Wanfang and VIP database self-built library up to June 30,2012,both Chinese and English literatures of LPN and OPN efficacy in controlled study were included with strict exclusion criteria by two independent screenings of the literature.Data extraction and quality assessment were done by using the RevMan 5.1 META analysis software.Results A total of four English and six Chinese literature were included in this Meta-analysis.There were 1636 cases of partial nephrectomies.Of these patients,794 cases were treated with LPN,842 cases were treated with OPN.Meta analysis results showed that:in terms of operative time (SMD =0.10,95% CI-O.40-0.59,P =0.70),surgical complication (OR =1.03,95% CI0.73-1.44,P =0.88),positive surgical margin (OR =1.64,95 % CI0.83-3.23,P =0.16),warm ischemia time (SMD =1.07,95% CI-0.02-2.16,P =0.05),postoperative tumor recurrence (OR =0.58,95% CI 0.26-1.30,P =0.18),there was no significant difference.But in terms of intraoperative blood loss (SMD=-1.08,95%CI-1.57--0.59,P<0.01),postoperative hospital stay (SMD=-0.81,95%CI-0.97--0.65,P <0.01),the differences were significant in favor of LPN.Conclusion Comparing with OPN,LPN has advantages in intraoperative blood loss and post-operative hospital stay,no obvious advantages in operative time,surgical complications,positive surgical margin,warm ischemia time and tumor recurrence.
10.Clinical research of autohemotherapy combined with bacillus calmette-guerin polysaccharide and nucleic acid in treatment of facial steroid-dependent dermatitis
Zudong MENG ; Fangyi WU ; Yahong WANG ; Xia HUANG ; Yu WANG ; Xiaolan WANG ; Wanxiang SHENG
Chinese Journal of Postgraduates of Medicine 2013;36(30):7-8
Objective To observe the clinical effect and security of autohemotherapy combined with bacillus calmette-guerin polysaccharide and nucleic acid in treatment of facial steroid-dependent dermatitis.Methods The 74 patients with facial steroid-dependent dermatitis were divided into treatment group (38patients) and control group (36 patients) according to the treatment method.The patients in treatment group were treated with autohemotherapy combined with bacillus calmette-gnerin polysaccharide and nucleic acid 1 ml muscle injection,every 3 days a time for 4 weeks.The patients in control group were treated with bacillus calmette-guerin polysaccharide and nucleic acid,every 3 days a time for 4 weeks.The effect was compared between the two groups.Results The total effective rate in treatment group was 84.2%(32/38),in control group was 63.9%(23/36),there was significant difference between the two groups (P < 0.05).No serious adverse reaction was found in two groups.Conclusion Autohemotherapy combined with bacillus calmettegnerin polysaccharide and nucleic acid is safe and effective in treatment of facial steroid-dependent dermatitis.