1.The analysis of artifacts in 64-slice spiral CT coronary angiography
Lihua LIANG ; Jufang WU ; Yaoqiang CHEN ; Manjia LI ; Xinping SHEN ; Liling CHEN ; Jin LI
Chinese Journal of Radiology 2008;42(9):923-926
Objective To investigate the reasons of artifacts in 64-slice spiral CT coronary angiography.Methods One hundred patients with diagnosed or suspected coronary artery disease underwent retrospectively ECG-gated 64-slice spiral CT coronary angiogruphy.Maximum intensity projection(MIP),muhiplanar reformation(MPR)and volume rendering technique(VRT)were reconstructed.The reasons of artifacts were assessed by two experienced radiologists.Results A total of 1347 segments(1347/1500,89.8%)were reviewed,the artifacts were found in 192 segments(14.2%).Breath movement was the moat common artifact(124/192).and the other reasons included fast rate and irregular rhythm of the heart beat (42/192).while the phase mismatch was the third reason(22/192).Conclusions The common artifacts of 64-slice spiral CT coronary angiography includes breath movement,fast rate and irregular rhythm of heart beat and phage mismatch.Breath-holding control,low rate and regular rhythm of heart beat,muhiphage reconstruction are suggested for the accurate diagnosis.
2.Therapeutic Effect of Guanxin Prescription No.1 for Coronary Heart Disease and Its Influence on Homocysteine
Yong CHEN ; Suilin YE ; Weiqiang LIU ; Yaoqiang WU ; Bing SHAO ; Haoting HE
Journal of Guangzhou University of Traditional Chinese Medicine 2000;0(04):-
Objective To observe the therapeutic effect of Guanxin Prescription No.1 (GP1)for coronary heart disease (CHD)and its influence on homocysteine (Hcy).Methods Sixty CHD patients were equally randomized into two groups.Both of the two groups received routine western medicine,and the treatment group additionally received GP1 (mainly composed of Radix Codonopsis,Radix Ophiopogonis,Fructus Schisandrae Chinensis,Rhizoma Polygonati Odorati,Rhizoma Chuanxiong,Rhizoma Anemarrhenae,Radix Salviae Miltiorrhizae,Radix Notoginseng,Radix Curcumae,etc).Four weeks constituted one treatment course.The total therapeutic effect and the effect on angina pectoris (AP)and electrocardiogram (ECG)were evaluated after treatment.Meanwhile,the changes of blood lipid levels,serum Hcy and internal-middle thickness (IMT)of carotid artery were observed.Results The total therapeutic effect and the effect on AP and ECG in the treatment group were superior to those in the control group (P0.05 compared with those before treatment).The decrease of serum Hcy level was obvious in the treatment group than that in the control group (P
3. Expressions of hypoxia inducible factor-1α and autophagy related protein Beclin-1 in colon cancer and their clinical significances
Zhongguo LI ; Yaoqiang WU ; Hongwei XUE ; Fuxiang YU
Cancer Research and Clinic 2019;31(11):751-755
Objective:
To investigate the expressions of hypoxia inducible factor-1α (HIF-1α) and autophagy related protein Beclin-1 in colon cancer and their clinical significances.
Methods:
From January 2017 to December 2018, 120 patients with colon cancer who were admitted to Dandong First Hospital were selected. The expressions of HIF-1α and Beclin-1 in colon cancer and corresponding adjacent tissues were detected by immunohistochemical SABC method. The relationship of the expressions of HIF-1α and Beclin-1 with the clinicopathological features of colon cancer patients was also discussed. The expressions of HIF-1α and Beclin-1 in 20 pairs of fresh colon cancer and paracancerous tissues were detected by Western blot.
Results:
The results of immunohistochemistry showed that the positive expression rates of HIF-1α and Beclin-1 proteins in colon cancer tissues were significantly higher than those in paracancerous tissues [75.0% (90/120) vs. 21.7% (26/120), 60.8% (73/120) vs. 12.5% (15/120)], and the differences were statistically significant (χ 2 values were 68.343 and 60.359, both
4. Expression of HOXA terminal transcript antisense RNA in hepatocellular carcinoma tissues and its effect on proliferation, invasion and migration of hepatocellular carcinoma HepG2 cells
Daxin CHEN ; Yaoqiang WU ; Feng JIANG ; Haiyang LI ; Hongyang LYU
Cancer Research and Clinic 2019;31(9):581-585
Objective:
To investigate the expression of HOXA terminal transcript antisense RNA (HOTTIP) in hepatocellular carcinoma (HCC) tissues and to explore its effect on proliferation, invasion and migration in HepG2 cells.
Methods:
A total of 60 cases with HCC tissues undergoing excision surgery and 60 cases of corresponding paracancerous tissues from January 2012 to June 2018 in Dandong First Hospital of Liaoning Province were collected. The expressions of HOTTIP in HCC tissues and paracancerous tissues were detected by using real-time quantitative polymerase chain reaction (RT-qPCR), and the relationship between the expression and clinicopathological features was analyzed. HepG2 cell line with high expression of HOTTIP constructed by cell transfer technique was treated as the experimental group, and the empty plasmid pcDNA3.1-NC was treated as the control group. The effect of HOTTIP on the proliferation of HepG2 cells was detected by using CCK-8 method, and the effect of HOTTIP on invasion and migration of HepG2 cells was detected by using Transwell assay.
Results:
The expression of HOTTIP mRNA in HCC tissues was higher than that in paracancerous tissues, and there was no statistically significant difference (1.9±0.6 vs. 0.9±0.7,
5. Analysis of children influenza surveillance results in Wenzhou from 2009 to 2014
Dong CHEN ; Baochang SUN ; Yanjun ZHANG ; Yaoqiang DU ; Chengchao YU ; Maomao WU ; Keke WU ; Wenli ZHENG
Chinese Journal of Experimental and Clinical Virology 2018;32(3):292-296
Objective:
To analyze the etiology and epidemiological characteristics of influenza in Wenzhou from 2009 to 2014, so as to provide the scientific basis for control and prevention of influenza.
Methods:
Throat swab specimens of influenza like illness (ILI) were collected from national influenza surveillance sentinel hospitals for nucleic acid detection with real-time PCR and virus isolation, culture and sequencing, and the results were analyzed with statistical methods.
Results:
During the 8 years, a total of 10 577 089 cases from outpatient and emergency department were monitored in sentinel hospitals. There were 337 896 ILI cases with an average ILI treatment rate of 3.19%. A total of 4 046 ILI samples were detected in children, 511 were positive for influenza, the positive rate was 12.63%. Among the detected influenza types, type B had the highest proportion, followed by H3N2. Among the 6 age groups, the number of flu patients was the highest in 0-3 years old group, the positive rate in 10-12 years old group was the highest (35.03%). There were 28 and 45 amino acid sequence mutations of HA fragment in influenza A and B, respectively, which included multiple mutation of 391 and 145 amino acids. The phylogenetic analysis showed that the strains of type B were different in different years, and Yamagata evolved into Y1 and Y2 two branches.
Conclusions
The prevalence peaks of influenza in children occurred in winter and spring in Wenzhou city, accompanied by small peaks in summer. Three subtypes of serotypes B, H3N2 and A(H1N1) dominated alternatively in Wenzhou during the 8 years. We should focus on strengthening the prevention and control of influenza in preschool children and primary and secondary school students.