2.To enhance the diagnosis and treatment of liver fibrosis.
Chinese Journal of Hepatology 2012;20(8):561-562
Antiviral Agents
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therapeutic use
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Biomarkers
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blood
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Biopsy
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Diagnostic Imaging
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methods
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Drug Therapy, Combination
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Drugs, Chinese Herbal
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therapeutic use
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Hepatitis B, Chronic
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complications
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diagnosis
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pathology
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Humans
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Liver
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pathology
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Liver Cirrhosis
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diagnosis
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drug therapy
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pathology
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Reproducibility of Results
5.Ulnar impaction syndrome caused by manipulating of keyboard and mouse.
Hai-tao SONG ; Zhong-wu REN ; Lian-cheng LIU
Chinese Journal of Industrial Hygiene and Occupational Diseases 2009;27(12):769-771
Adolescent
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Adult
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Female
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Humans
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Male
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Middle Aged
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Occupational Diseases
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diagnosis
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etiology
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Ulna
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injuries
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Wrist Injuries
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diagnosis
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etiology
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Young Adult
6.Applied Value of 64-slice Spiral CT Angiography in Diagnosing Arterial Diseases of the Lower Extremities
Hai ZHONG ; Guangrui SHAO ; Zhuodong XU ; Cheng LIU
Journal of Practical Radiology 2000;0(02):-
Objective To assess the role and its tecnhique superiority of 64-slice spiral CT angiography(CTA) in lower limb arterial diseases.Methods MSCT studies in 33 cases suspected diseases of lower limb arteries was performed,the helical scans covered the extent of renal artery to the artery of the lower extremity.3D reconstruction of vessel was done in Wizard workstation.The manifestations of MSCTA were compared with that of conventional angiography . Results Of the 693 segments of arteria , 683 were assessable on both DSA and CTA.Using the DSA images as the standard reference,the sensitivity,specificity and accuracy of CTA were 97.6%(95% CI,94.9%~100.7%),98.9%(95% CI,98.0%~99.8%),98.7%(95% CI,97.9%~99.5%)in detecting the segments occluded . With the regard the detection of segments that had more than moderate stenosis , the sensitivity , specificity and accuracy of MIP were 98.9% ( 95% CI , 97.4%~100.4%),99.4%( 95% CI, 98.7%~100.1%) and 99.3%(95% CI, 92.4%~99.9%).Conclusion In assessment of diseases of lower limb arteries with 64-slice spiral CT angiography is equal to DSA basically, it is a highly accurate and non-invasive angiography in diagnosing arterial diseases of the lower extremities.
7.Recording method of mouse pattern electroretinogram
Hai-xia, CHENG ; Song-tao, YUAN ; Qing-huai, LIU
Chinese Journal of Experimental Ophthalmology 2012;30(1):50-53
BackgroundMouse has been used in laboratory studies as the model of ocular diseases.Electroretinogram (ERG)is a non-invasive method for primary examination to evaluate retinal function.Though flash ERG has been widely applied in the mouse ocular disease model for the functional assessment of the retinal outer layer,pattern ERG(PERG) is seldom used for inner retinal evaluation.ObjeetiveThe present experimental study was to investigate the recording parameters and method,wave characteristics of PERG and influencing factors in mouse,and to build the foundation for further research.Methods Thirty C57BL/6 mice aged 6 weeks old were included in this research.RETLport ( Roland Consult,Germany) was adopted for the recording of PERG.The positive needle electrode was placed in the cornea,and the reference and earth electrodes were placed under the derma in the cheek and tail.The PERG under different temporal frequencies (0.5,1.0,2.0 and 4.0 Hz),and special frequencies (0.05,0.10,0.20 cpd) were recorded in a photopic environment,and different contrast ratio (95% and 99% ) of stimulator or different transmission bands ( 1-100 Hz,5-30 Hz) in the same temporal frequency and spatial frequency were regulated to analyze the influence on mouse PERG.The use of animals was in compliance to the Regulations for the Administration of Affairs Concerning Experimental Animals by the State Science and Technology Commission.ResultsThe latency of N1 PERG showed a negative N1wave at around 37 ms and positive P wave at about 86 ms in adult mice.The amplitude of N1-P was 2-6 μV.Different spatial frequency,temporal frequency and contrast can affect the final results,and the different temporal frequencies were statistically significant.The wave was stable and the amplitude was unaffected at 5-30 Hz transmission bands with pronounced interference (mean amplitude of N1-P waves were(3.40±0.71),(5.08±0.88),(3.21±1.54),(3.85±1.96)μV in 0.5,1.0,2.0,4.0 Hz,F=7.43,P=0.00).ConclusionsPERG wave from adult mouse is similar to that from human.It is a useful method in evaluating the inner retinal function.Appropriate stimulating parameters are critical for recording.
8.Analysis of a survey results of iodine deficiency disorders in Sanmenxia city of Henan province in 2008
Yi-li, WEI ; Cheng, WEI ; Nan, LIU ; Hai-bo, ZHANG
Chinese Journal of Endemiology 2011;30(4):430-433
Objective To investigate the current situation of iodine deficiency disorders and the effect of control measures in Sanmenxia city of Henan province, and to formulate targeted control measures for iodine deficiency disorders. Methods In 2008, five villages(offices) were selected according to the east, west, south,north and center position in each county in 6 counties(cities, districts) of Lingbao, Shan, Hubin, Yima, Mianchi,and Lushi in Sanmenxia city. One primary school was selected in each village(office), fifty students aged 8 - 10 in each primary school were randomly selected to check thyroid and their urine and edible salt were collected to detect iodine. Thirty 5th-grade students in each school were selected to carry out the questionnaire survey of health education about iodine deficiency disorders. According to the east, west, south, north and center position, five potable water samples were selected to detect iodine in the village where the primary school was in. Questionnaire survey was also carried out among ten housewives in the village. Thyroid was examined by palpation;ammonium persulfate digestion-arsenic cerium catalytic spectrophotometry(WS/T 107-2006) was used to detect urinary iodine;direct titration(GB/T 13025-1999 ) was used to detect salt iodine;arsenic cerium catalytic spectrophotometry (GB/T 5750.5-2006) was used to detect water iodine. Results One thousand and five hundreds children aged 8 - 10 were analyzed in 6 counties(cities, districts), the rate of goiter was 3.30%(50/1500), the median of urinary iodine was 273.15 μg/L. One thousand and five hundreds salt samples were detected, the coverage rate of iodized salt was 99.93% (1499/1500), the qualified rate of iodized salt was 98.00% (1469/1499), the edible rate of qualified iodized salt was 97.93% (1469/1500), the coverage rate of non-iodized salt was 0.07% (1/1500), the median of salt iodine was 28.9 mg/kg. One hundred and fifty water samples were collected, the median of water iodine was 2.76 μg/L. The pass rate of the questionnaire survey of health education about iodine deficiency disorders was 97.11% (874/900) in students and 98.67% (296/300) in housewives, respectively. Conclusions The prevention and control of iodine deficiency disorders has achieved significant results and the monitoring indicators have reached the national standard for eliminating iodine deficiency disorders in Sanmenxia city.
9.Effect of Fuzheng Huayu recipe on CYP450 isozymes in normal and liver fibrosis rats.
Tian-hui ZHENG ; Wei LIU ; Shu-ping LI ; Tao YANG ; Chang-hong WANG ; Cheng-hai LIU
China Journal of Chinese Materia Medica 2015;40(6):1166-1172
To study the effect of Fuzheng Huayu recipe (FZHY) on five types of isozymes of cytochrome P450 (CYP450) of normal and liver fibrosis rats by using the cocktail probe method. Dimethylnitrosamine ( DMN) was injected to induce the liver fibrosis model. After the tail vein injection with Cocktail probe solutions prepared with five CYP450s probe substrates (phenacetin-CYP1A2, omeprazole-CYP2C9, tolbutamide-CYP2C19, dextromethorphan-CYP2D6, midazolam-CYP3A4), the plasma concentrations of the five probe substrates were determined by LC-MS/MS, and the pharmacokinetic parameters were calculated by PK solutions 2. After the oral administration with FZHY, normal rats given phenacetin, omeprazole, tolbutamide and dextromethorphan showed increase in AUC(0-t) and decrease in CL to varying degrees, indicating that FZHY obviously inhibited the activities of CYP1A2, CYP2C9, CYP2C19 and CYP2D6 in normal rats, but with no obvious effect on the activity of CYP3A4. After the oral administration with FZHY, liver fibrosis rats treated with CYP2C9 showed the significant increase in AUC(0-t) and significant decrease in Vd, hut with no obvious changes in the pharmacokinetic parameters of other four types of prove substances, suggesting that FZHY could significantly inhibit the activity of CYP2C9 in rats but had no effect on the activities of CYP1A2, CYP2C19, CYP2D6 and CYP3A4. The changes in the activity of CYP450 isozymes in liver fibrosis rats may be the reason for FZHY's different effects on CYP450 isozymes in normal and liver fibrosis rats.
Animals
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Cytochrome P-450 Enzyme System
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genetics
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metabolism
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Disease Models, Animal
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Drugs, Chinese Herbal
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administration & dosage
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chemistry
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pharmacokinetics
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Humans
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Isoenzymes
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genetics
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metabolism
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Liver Cirrhosis
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drug therapy
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enzymology
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genetics
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Male
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Mass Spectrometry
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Rats
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Rats, Wistar
10.Clinical analysis of Staphylococcus aureus resistance to methicillin in patients with coal worker's pneumoconiosis complicated by lung cancer.
Si-hai LIU ; Pei-yue LIU ; Wen FENG ; Jun-he DAI ; Cheng-dong QI ; Fang QIAN
Chinese Journal of Industrial Hygiene and Occupational Diseases 2004;22(5):391-392