1.Observation of anterior chamber angle change before and after laser iridectomy in primary angle closure glaucoma patients with Stratus optical coherence tomography
Wei-Jia DAI ; Hui-Qing YANG ; Xiu-Yun PAN ;
Ophthalmology in China 1993;0(04):-
Objective To explore the clinical application and outlook of anterior segment observation with Stratus optical coherence tomography(Stratus OCT).Design Prospective case series.Participants 56 eyes in 38 patients with primary angle closure glaucoma (PACG).Methods Morphological changes of anterior chamber angle (ACA) were observed with Stratus OCT before and 4 weeks after laser iridectomy.Opening status of ACA were described and measured with Photoshop software.Main Outcome Measures Opening degree of ACA and ratio of anterior chamber depth to thickness of cornea.Results To a great deal of extent,Stratus OCT could be used to observe the appearance of ACA. Clear images of ACA could be acquired.The ACA before laser was (15.67?5.33) degree and significantly reopened to(26.56?8.17) degree after laser iridectomy (P=0.000).The ratio of anterior chamber depth to thickness of cornea was also changed from (0.39?0.13) pre-treatment to (0.89?0.32) pest-treatment(P=0.000).Conclusions Stratus OCT could be applied to observe the changes of opening degree of ACA easily.The standard of quantization should be consummated in the future.
3.Worldwide trends in epidemiology and control of tuberculosis
Daniel GNINAFON ; Bing LI ; Xue-Wei ZHAO ; Qing-Yu XIU
Academic Journal of Second Military Medical University 2006;27(3):303-310
Tuberculosis (TB) is a global burden disease and is being resurrected as a major worldwide public health problem after two decades of neglect.In 1993,the World Health Organization (WHO) declared that TB had been a global emergency because of the scale of the epidemic and the urgent need to improve global tuberculosis control.China is one of the countries with the largest population,and also the top of the 22 TB high-burden countries in the world.In the United States,the longstanding downward trend in TB incidence was interrupted in the mid-to-late 1980s,where the national TB incidence peaked in 1992.Sub-Saharan Africa is one of the three regions to dominate the worldwide distribution of notified TB cases.Of the 15 countries with the highest estimated tuberculosis incidence rates in the world,13 are in sub-Saharan Africa,where HIV is the most important single predictor of tuberculosis incidence.The largest share of the global burden of HIV-related tuberculosis falls on this region.The reasons for the persisting global tuberculosis burden include increased poverty in some regions,immigration from countries with high tuberculosis prevalence,the impact of HIV,and most importantly,the failure to maintain the necessary public health infrastructure under the mistaken belief that tuberculosis was a problem of the past.Relying on currently available methods of diagnosis and treatment,the DOT strategy promoted by the WHO for global tuberculosis control is effective,affordable,and adaptable in different settings.
4.Clinical Significance of Monitoring Indexes of Oxygen Exchange in Neonatal Respiratory Distress Syndrome
yu-dan, HUANG ; er-li, QU ; xiu-rui, DENG ; qing, CHEN ; wei-dong, SU
Journal of Applied Clinical Pediatrics 1992;0(06):-
0.05).Conclusion Indexes of oxygen function may become criteria of early diagnosing NRDS,observing effect of treatment and guidance of ventilation weaning.
5.Effect of drying methods on monoterpenes, phenolic acids and flavonoids in Mentha haplocalyx.
Shao-qing ZHU ; Zhen-hua ZHU ; Sheng GUO ; Yu-yang ZHAO ; Xue-jun LU ; Xiu-xiu SHA ; Da-wei QIAN ; Jin-ao DUAN
China Journal of Chinese Materia Medica 2015;40(24):4860-4867
To provide a scientific basis for the selection of the appropriate drying method for Mentha Haplocalyx Herba (MHH), determine 2 monoterpenes, 4 phenolic acids and 5 flavonoids in MHH by GC-MS and UPLC-TQ-MS methods, and investigate the effects of the drying methods on the changes in contents of these analytes. The qualities of products obtained with different drying methods were evaluated by the multivariate statistical method of Technique for Order Preference by Similarity to Ideal Solution (TOPSIS). Results showed that the drying methods had the greatest impact on menthol, caffeic acid, and rosemary acid, which were followed by chlorogenic acid and diosmetin-7-O-glucoside. The contents in these analytes processed with hot-air-drying method were higher than those with microwave-drying and infrared-drying methods at the same temperatures. The contents in these analytes processed under low temperature (40-45 °C) were higher than those under higher temperature (60-70 °C). Above all, the contents in phenolic acids processed with microwave fixation (exposed under microwave at 100 °C for several minutes) were obviously higher than those of not being processed, showing an inhibition of some enzymes in samples after fixation. The TOPSIS evaluation showed that the variable temperature drying method of 'Hot-Air 45-60 °C' was the most suitable approach for the primary drying processing of MHH. The results could provide the scientific basis for the selection of appropriate drying method for MHH, and helpful reference for the primary drying proces of herbs containing volatile chemical components.
Desiccation
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methods
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Flavonoids
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analysis
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Hydroxybenzoates
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analysis
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Mentha
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chemistry
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Monoterpenes
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analysis
6.Weibull distribution for modeling drying of Angelicae Sinensis Radix and its application in moisture dynamics.
Xiu-xiu SHA ; Shao-qing ZHU ; Jin-ao DUAN ; Sheng GUO ; Xue-jun LU ; Zhen-jiang GAO ; Hui YAN ; Da-wei QIAN
China Journal of Chinese Materia Medica 2015;40(11):2117-2122
To establish the water dynamics model for drying process of Angelicae Sinensis Radix, the Weibull distribution model was applied to study the moisture ratio variation curves, and compared the drying rate and drying activation energy with the drying methods of temperature controllable air drying, infrared drying under different temperatures (50, 60, 70 degrees C). The Weibull distribution model could well describe the drying curves, for the moisture ratio vs. drying time profiled of the model showed high correlation (R2 = 0. 994-0. 999). The result proved that the drying process of Angelicae Sinensis Radix belonged to falling-rate drying period. For the drying process, the scale parameter (a) was related to the drying temperature, and decreased as the temperature increases. The shape parameter (β) for the same drying method, drying temperature had little impact on the shape parameter. The moisture diffusion coefficient increase along with temperature increasing from 0.425 x 10(-9) m2 x s(-1) to 2.260 x 10(-9) m2 x s(-1). The activation energy for moisture diffusion was 68.82, 29.60 kJ x mol(-1) by temperature controllable air drying and infrared drying, respectively. Therefore, the Weibull distribution model can be used to predict the moisture removal of Angelicae Sinensis Radix in the drying process, which is great significance for the drying process of prediction, control and process optimization. The results provide the technical basis for the use of modern drying technology for industrial drying of Angelicae Sinensis Radix.
Angelica sinensis
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chemistry
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Desiccation
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methods
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Models, Theoretical
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Water
7.Expression of human mu-opioid receptor cDNA in CHO cell.
Wei LIU ; Hai-Qing DUAN ; Shu-Qin LI ; Xiu-Li LIU ; Zhao-Shan ZHANG
Chinese Journal of Biotechnology 2004;20(3):372-376
Opioid receptor, is classified into three subtypes, mu, kappa and delta, with the mu-type receptor plays important roles in opioid analgesia and opioid addiction. The cDNA encoding mu-type receptor was obtained by RT-PCR from human brain RNA and was cloned into pcDNA3.1(+). The resultant recombinant plasmid pcDNAMORs were transfected into CHO cells by liposome. After PCR identification, the positive clone were treated with agonist and antiagonist were tested for their competence of signal transduction. CHO cells that contained mu-opioid receptor in the expression vector pcDNA3.1(+) acquired naloxone-blockable high-affinity specific binding of morphine and DAMGO. The concentration of cAMP in CHO cells transfected with pcDNAMOR was reduced after binding to morphine and DAMGO, and increased after binding naloxone. These results indicate that the mu-type receptor expreesd on the CHO cell has similar biological property as the nature receptor. The availability of these specific cell lines will facilitate the drug development and promote our understanding the mechanism underlying opiate addiction.
Animals
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Brain Chemistry
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CHO Cells
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Cricetinae
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Cricetulus
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DNA, Complementary
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biosynthesis
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genetics
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Humans
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Receptors, Opioid, mu
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biosynthesis
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genetics
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Transfection
8.A systematic review and meta-analysis of type 2 diabetes mellitus treatment based on the "three-typed syndrome differentiation" theory in Chinese medicine.
Xiu-feng YAN ; Qing NI ; Jun-ping WEI ; Lan LIN
Chinese journal of integrative medicine 2014;20(8):633-640
OBJECTIVETo evaluate the efficacy and safety of "Three-Typed Syndrome Differentiation" (TTSD) in treating type 2 diabetes mellitus patients.
METHODSA systematic review and meta-analysis was done based on the clinical diabetes treatment literature of the "TTSD". Overseas databases like the PubMed/MEDLINE, EMBASE, Cochrane Library and Cochrane Central Register of Controlled Clinical Trials, and China databases like China Biology Medicine Disc (CBM), Chinese national Knowledge Infrastructure (CNKI), Wanfang database, and VIP database, without limitation on language, were included with the time limitation from Jan 1982 to Dec 2012 by retrieval of relative original clinical research articles.
RESULTSNineteen articles where contains 1,840 diabetes patients were obtained, in which no adverse reactions were reported. Of these, 14 literatures involved the effect of fasting blood glucose (FBG), 10 involved that of postprandial 2-h blood glucose (P2hBG), and 19 involved the overall efficacy based on the national Chinese medicine (CM) diagnosis and treatment standard of diabetes. All the meta-analysis results prefer to the "TTSD" groups (CM+Western medicine Based on TTSD). The results show that, beside the efficacy of Western medicine, the concentrations of FBG and P2hBG in "TTSD" groups continue to drop with statistical significance. For "TTSD" groups, the FBG subsequently dropped 1.03 mmol/L, 95%CI [1.24,0.82] P <0.00001), the P2hBG subsequently dropped 1.09 mmol/L, 95% CI [1.61, 0.57] (P <0.0001), and the overall efficacies benefit 3.46 times those of Western medicine alone, 95% CI [2.67,4.48] (P <0.00001).
CONCLUSIONSThe CM by the diagnosis and treatment of type 2 diabetes based on TTSD might be safe and effective, and could better improve both blood glucose and the overall status of patients, including symptoms.
Blood Glucose ; metabolism ; Diabetes Mellitus, Type 2 ; blood ; drug therapy ; Fasting ; blood ; Humans ; Medicine, Chinese Traditional ; Postprandial Period ; Syndrome ; Treatment Outcome
9.Effects of 75 gram glucose oral tolerance test and standard meal test on insulin secretion function of islets of Langerhans and free fatty acid in patients with type 2 diabetes mellitus
Qi SUN ; Jing-Bo ZENG ; Kang YU ; Yu-Xiu LI ; Qiu-Ying LIU ; Wei QIN ; Qing-Rong PAN ; Heng WANG ;
Chinese Journal of General Practitioners 2005;0(07):-
Objective To observe the effects of 75 gram glucose oral tolerance test (75 g OGTT) and standard mixed meal test (SMMT) on insulin secretion function of the islets of Langerhans and plasma free fatty acid (FFA) in patients with type 2 diabetes mellitus.Methods Seventy-six patients with type 2 diabetes without using insulin and with no obvious complications were recruited for 75 g OGTT following overnight fasting on the first day and SMMT (bread 50 g,egg 50 g and milk 250 ml) on the 7th day.Blood specimens were collected from each patients before the tests and 30 min,60 min,120 min and 180 min after glucose or meal load to measure their levels of plasma glucose,serum insulin,C peptide,FFA and lipids (total cholesterol,triglyceride,high-density and low-density lipoprotein cholesterol).Results No difference in fasting plasma glucose,serum insulin,C peptide,FFA and lipids between 75 g OGTT and SMMT was found.Postprandial plasma glucose 30 min,60 min,120 min and 180 min after 75 g OGTT was significantly higher than that after SMMT,with (15.3?3.5) vs (9.9?3.4) mmol/L,(18.2?4.8) vs (12.8?4.0) mmol/L,(16.3?5.8) vs (12.2?4.9) mmol/L and (10.6?5.4) vs (9.5?4.5) mmol/L (F=28.1,P
10.Identification of a Thermoacidophilic Sulfolobus sp. Isolated from a Hot Spring in Tengchong Rehai
Bo CHEN ; Yun-Lin WEI ; Shen-Rong JING ; Xiu-Ling JI ; Yue-Qing LU ; Lian-Bing LIN ;
Microbiology 2008;0(12):-
An extremely thermoacidophilic isolate K4-1 was obtained from an acidic hot spring in Teng- chong Rehai, Yunnan province. Morphology, growth characteristics, utilization of carbon compounds, en- ergy sources and 16S rRNA gene sequence of K4-1 were studied. Cells of K4-1 are irregular cocci with monotrichous flagella. The strain grew aerobically in either a lithotrophic or a heterotrophic mode. Growth on elemental sulfur occurred through oxidation of sulfur. It grew optimally at 75?C and pH 3.5. On the basis of 16S rRNA gene sequence similarity, strain K4-1 was shown to belong to genus Sulfolobus, being related to the type strains of genus Sulfolobus (86.6%~94.3% similarity), and being most closely related to strain Sulfolobus tengchongensis RT8-4 (98.9% similarity). The GenBank accession number of strain K4-1 16S rRNA gene sequence is EU729124.