1.Research and development of portable hypertension therapeutic apparatus based on biofeedback mechanism.
Rong HUANG ; Hongmei HE ; Xitian PI ; Ziji DIAO ; Suwen ZHAO
Journal of Biomedical Engineering 2014;31(3):586-589
Non-drug treatment of hypertension has become a research hotspot, which might overcome the heavy economic burden and side effects of drug treatment for the patients. Because of the good treatment effect and convenient operation, a new treatment based on slow breathing training is increasingly becoming a kind of physical therapy for hypertension. This paper explains the principle of hypertension treatment based on slow breathing training method, and introduces the overall structure of the portable blood pressure controlling instrument, including breathing detection circuit, the core control module, audio module, memory module and man-machine interaction module. We give a brief introduction to the instrument and the software in this paper. The prototype testing results showed that the treatment had a significant effect on controlling the blood pressure.
Biofeedback, Psychology
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methods
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Blood Pressure
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Humans
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Hypertension
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therapy
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Physical Therapy Modalities
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instrumentation
2.Effects of pelvic orientation on the anteveration measurement of simulated acetabular cup
Xuejun DU ; Weiming LIAO ; Ming FU ; Aishan HE ; Zibo YANG ; Yan KANG ; Peihui WU ; Hao ZHANG ; Ziji ZHANG
Chinese Journal of Tissue Engineering Research 2010;14(9):1581-1585
BACKGROUND: Acetabular cup orientation using a standard radiograph of the pelvis is quite common method to assess artificial hip replacement nowadays. Non-standardization of pelvic orientation affected accuracy of measurement results, and it is difficult to compare. OBJECTIVE: To make sure how pelvis tilting affect the anteveration of the cup and to elevate clinical accuracy and compare study comparability. METHODS: Designed a simulated acetabular cup with serial concentric circles which pass through the same polars and represent anteveration of 0°, 10°, 20°, 30°, 40°, Loaded the simulated acetabular cup at an inclination of 35°, 40°, 45°, 50°, 55° to6 cadaver pelves, Made the pelves tilt around the frontal axis and sagittal axis with 5° each time in a scope of+30°. Takestandard radiograph of the pelvis accordingly. Radiograph was photographed end frontal angle of dip was measured. RESULTS AND CONCLUSION: Pelvic tilt of about 1° causes measuring errors of anteveration 0. 61 °-0. 73°. The anteveration decreased at both acetabular cups when pelvic posterior tilt and at the acetabular cup that near the X-ray source as pelvic lateral tilt. The anteveration rose at both acetabular cups when pelvic anterior tilt and at the acetabular cup that away from the X-ray source as pelvic lateral tilt. During clinical evaluation, pelvic orientation effects on measurement results should be considered.
3.Resisin stimulates the expression of CCL3 and CCL4 in chondrocytes
Ziji ZHANG ; Yan KANG ; Zibo YANG ; Changhe HOU ; Guangxin HUANG ; Weishen CHEN ; Puyi SHENG ; Aishan HE ; Ming FU ; Weiming LIAO ; Zhiqi ZHANG
Chinese Journal of Tissue Engineering Research 2015;(15):2297-2304
BACKGROUND:Previous studies have indicated that resistin stimulates a large set of chemokines in chondrocytes that are known to be important in inflammatory joint lesions.
OBJECTIVE:To further investigate the mechanism of co-regulation roles of transcription and post-transcription in the up-regulation of two chemokine genes CCL3 and CCL4 in chondrocytes in response to resistin.
METHODS:Human chondrocytes, T/C-28a2 and ATDC5 cels were cultured. The function of resistin on the chemokine genes, and the expression of C/EBPβ, nuclear factor-κB isoforms and chondrogenic specific miRNAs were tested by qPCR. The co-regulation of C/EBPβ and nuclear factor-κB was investigated by nuclear factor-κB inhibitor (IKK-NBD) and C/EBPβ inhibitor (SB303580) treatments, and subcelular localization was detected with or without resistin stimulation.
RESULTS AND CONCLUSION:Resistin could increase the expression of chemokine genes independently. Chondrocytes reacted in a non-restrictedly cel-specific manner to resistin; C/EBPβ inhibitor, nuclear factor-κB and some chondrogenic specific miRNAs in a combinatorial manner regulated chemokine gene expression. The activity of C/EBPβ was augmented by a transient increase in activity of nuclear factor-κB, and both transcription factors acted independently on the chemokine genes, CCL3 and CCL4.
4.Application of multiplex PCR for the screening of genotyping system for the rare blood groups Fy(a-), s-,k-,Di(b-) and Js(b-).
Wei JIAO ; Li XIE ; Hailan LI ; Jiao LAN ; Zhuning MO ; Ziji YANG ; Fei LIU ; Ruiping XIAO ; Yunlei HE ; Luyi YE ; Ziyan ZHU
Chinese Journal of Medical Genetics 2014;31(2):242-246
OBJECTIVETo screen rare blood groups Fy(a-), s-, k-, Di(b-) and Js(b-) in an ethnic Zhuang population.
METHODSSequence-specific primers were designed based on single nucleotide polymorphism (SNP) sites of blood group antigens Fy(b) and s. A specific multiplex PCR system I was established. Multiplex PCR system II was applied to detect alleles antigens Di(b), k, Js(b)1910 and Js(b) 2019 at the same time. The two systems was were used to screen for rare blood group antigens in 4490 randomly selected healthy donors of Guangxi Zhuang ethnic origin.
RESULTSWe successfully made the multiplex PCR system I. We detected the rare blood group antigens using the two PCR system. There are five Fy(a-), three s(-), two Di(b-) in 4490 Guangxi zhuang random samples. The multiplex PCR system I has achieved good accuracy and stability. With multiplex PCR systems I and II, 4490 samples were screened. Five Fy(a-), three s(-) and two Di(b-) samples were discovered.
CONCLUSIONMultiplex PCR is an effective methods, which can be used for high throughput screening of rare blood groups. The rare blood types of Guangxi Zhuang ethnic origin obtained through the screening can provide valuable information for compatible blood transfusion. Through screening we obtained precious rare blood type materials which can be used to improve the capability of compatible infusion and reduce the transfusion reactions.
Blood Group Antigens ; genetics ; Duffy Blood-Group System ; genetics ; Genotype ; Humans ; Multiplex Polymerase Chain Reaction ; methods ; Receptors, Cell Surface ; genetics
5.Quality evaluation of Plantago asiatica and fried Plantago asiatica based on fingerprint and analysis of chemical pattern recognition
Ziji HE ; Binxi WU ; Yuxin LI ; Zhibin SHEN ; Qiyue LIU ; Qiuhong WANG
China Pharmacy 2022;33(14):1700-1705
OBJECTIV E To establish the method for evaluating the quality o f Plantago asi atica and fried P. asiatica . METHODS The fingerprints of 15 batches of P. asiatica and 15 batches of fried P. asiatica were established by HPLC. The common peaks were identified with the Similarity Evaluation System for Chromatographic Fingerprinting of TCM (2012 edition), and similarity evaluation was performed. Analysis of chemical pattern recognition was performed by using SPSS 25.0 and SIMCA-P 14.1 software(cluster analysis ,principal component analysis and orthogonal partial least squares regression analysis ). The markers which affected the difference in the quality between P. asiatica and fried P. asiatica were screened with variable importance projection(VIP)value greater than 1. RESULTS There were 18 common peaks in the fingerprints of 15 batches of P. asiatica and 13 common peaks in the fingerprints of 15 batches of fried P. asiatica . A total of 8 common peaks were found in both of them. Their similarities were greater than 0.920. Two common peaks were identified as geniposidic acid ,acteoside. The results of cluster analysis showed that when the spacing was 10,the 30 batches of samples could be clustered into three categories ,with S 1-S5 as one,S16-S20 as one ,S6-S15 and S 21-S30 as one . The results of the pri ncipal component analysis showed that the cumulative variance contribution rate of the first two principal components was 82.575% . The results of the orthogonal partial least squares regression analysis showed that the VIP values of the three common peaks were greater than 1,namely peak E(acteoside), peak D (geniposidic acid ) and peak G. CONCLUSIONS Established fingerprints are stable ,simple sina.com and rapid. It can be used for the quality evaluation of P. asiatica and fried P. asiatica ,by combining with analysis of chemical pattern recognition. Acteoside ,geniposidic acid and the component represented by peak G may be the markers affecting the difference in quality of P. asiatica and fried P. asiatica .