1.Fingerprint of Zedoary turmeric oil by GC
Xiang LI ; Yantao SUN ; Zhenqiu ZHANG
Chinese Traditional Patent Medicine 2010;(2):176-179
AIM: To establish the method of fingerprinting analysis onZedoary turmeric oil by GC. Zedoary turmeric oil for the quality control of reference. METHODS: GC method was used to determine the fingerprint and its similarity of Zedoary turmeric oil calculated on Excel and cluster analysis. RESULTS: Seventeen samples of Zedoary turmeric oil indicated that there was a little similarity among them. Based on the cluster analysis, all the Zedoary turmeric oils could be divided into two categories, self-made and market purchasing oil, the latter oils purchased from Liaoning province and Jiangsu province varied considerably. Every category had a common fingerprint mode with clear resemblance. CONCLUSION: When finding the difference between the self-made and the marketpurchasing Zedoary turmeric oil, quality control requires serious consideration.
2.Progress in diagnosis and treatment of children allergic rhinitis.
Yunchao XIN ; Yutuo ZHANG ; Yantao LIN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2015;29(5):400-403
Children allergic rhinitis, referred to as children allergic rhinitis (AR), is a kind of non-infectious inflammation of the nasal mucosa mediated by IgE with the main symtoms of paroxysmal sneezing, rhinorrhoea, nasal itching and nasal obstruction when the susceptible individuals contact the allergen. It is a high reaction disease of the respiratory mucosa common with childhood, which has serious implications to the Children's quality of life, study, rest and growth. The global sampling survey reveals that the morbidity is about 14%, of which 10% in our country and there is an upward trend year by year. At present, drug therapy is still one of the most important methods for children AR. Definite diagnosis, standardized drug therapy and the development of new specific immune therapy make children AR in a good control . This review updates the diagnosis and treatment for children AR, referring to the newest guide by WHO about allergic rhinitis and its impact on asthma (ARIA).
Asthma
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Child
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Humans
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Nasal Mucosa
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physiopathology
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Quality of Life
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Rhinitis, Allergic
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diagnosis
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therapy
3.Sintering character of nanocrystal calcium-deficient apatite
Yantao ZHAO ; Dagang GUO ; Yumei ZHANG
Journal of Practical Stomatology 1996;0(02):-
Objective:To study the sintering character of calcium-deficient apatite.Methods:Calcium-deficient apatite synthesised by wet chemical method was sintered at different temperature and then its chemical composition, phase structure and morphology were examined by FT-IR spectroscopy, X-ray diffraction (XRD) and field emission scanning microscopy (FESEM) respectively.Results:When the heating temperature is below 500 ℃, apatite crystal kept a stable size with a diameter of 12-26 nm and a length of 30-66 nm. After sintered at 600 ℃ for 2 h, apatite crystal were with a diameter of 25-40 nm and a length of 75-100 nm. Around 800 ℃ for 2 h, apatite was decomposed into Ca_3(PO_4)_2.The crystal size of the Ca_3(PO_4)_2 surpassed 200 nm in diameter and length. NH_4+ ion could be removed at temperature beyond 300 ℃.Conclusion: Calcium-deficient apatite has it's specific sintering character.
4.Fingerprint of Zedoary turmeric oil by GC
Xiang LI ; Yantao SUN ; Zhenqiu ZHANG
Chinese Traditional Patent Medicine 1992;0(02):-
AIM: To establish the method of fingerprinting analysis on Zedoary turmeric oil by GC.Zedoary turmeric oil for the quality control of reference. METHODS: GC method was used to determine the fingerprint and its similarity of Zedoary turmeric oil calculated on Excel and cluster analysis. RESULTS: Seventeen samples of Zedoary turmeric oil indicated that there was a little similarity among them.Based on the cluster analysis,all the Zedoary turmeric oils could be divided into two categories,self-made and market purchasing oil,the latter oils purchased from Liaoning province and Jiangsu province varied considerably.Every category had a common fingerprint mode with clear resemblance. CONCLUSION: When finding the difference between the self-made and the market purchasing Zedoary turmeric oil,quality control requires serious consideration.
5.Research of micro sleeping monitor and evaluation system.
Caibing ZHU ; Yantao SONG ; Lanlan WEI ; Jilun YE ; Xu ZHANG
Chinese Journal of Medical Instrumentation 2013;37(6):414-431
By studying of the pathology of human sleep and respiration disorder diseases, the method of sleep and respiration measurement, the evaluation index, a kind of micro sleep monitor and evaluation system was designed. Based on the methods of spectrum absorption and force changing, using high performance pulse oxygen saturation monitoring technology and respiration monitoring technology, developing a low-cost, high usability sleep monitor system which is convenience for family using. It can measure the signal of human oxygen saturation and chest respiration, can improve the quality of signal and reliable from arithmetic and sensor installing.
Humans
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Monitoring, Physiologic
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instrumentation
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methods
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Oximetry
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instrumentation
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methods
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Respiration
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Sleep
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physiology
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Software Design
6.A method for impedance measurements based on EEG acquisition system.
Jilun YE ; Lanlan WEI ; Fan WANG ; Yantao SONG ; Xu ZHANG
Chinese Journal of Medical Instrumentation 2014;38(4):240-250
In the bioelectric measurement, the electrode impedance detection is an important index to the signal quality evaluation and sensor electrode contact condition. In this paper, a method of accurately measuring the electrode impedance based on EEG measurement system was put forward, the method is based on the constant current source excitation signals which are added to the human body, by monitoring the human voltage to measure the electrode impedance. And different reference resistor calibration calculation in different sections was used to reduce the effect of constant current source on the precision of measurement results to improve the measurement accuracy.
Calibration
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Electric Impedance
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Electroencephalography
7.Investigation on effect of dual-source CT scanning patterns on radiation dose and image quality of head and neck
Yantao NIU ; Yongxian ZHANG ; Senlin GUO ; Binbin YU
Chinese Journal of Radiological Medicine and Protection 2016;36(12):943-946
Objective To study the impact on the radiation dose,organ doses of eye lens and thyroid and image quality with different scanning modes in head and neck CT scan.Methods The simulation phantom of head and neck was scanned by using fixed scanning condition (120 kV and 200 mAs),as well as the combinations of automatic tube current modulation (CARE Dose 4D),automatic tube voltage modulation technique (CARE kV) and partial angle scanning mode (X-CARE) respectively.Six kinds of scanning modes were adopted,including 120 kV +200 mAs,120 kV + 200 mAs + X-CARE,CARE Dose 4D + 120 kV,CARE Dose 4D + 120 kV + X-CARE,CARE Dose 4D + CARE kV,CARE Dose 4D + CARE kV + X-CARE.Two thermolumineseece dosimeters (TLDs) were exposed at the skin surface positions of eye lens and thyroid,and the values measured with two TLDs were averaged.The CT dose index volume (CTDIvol) and dose length product (DLP) for every scan were recorded,and the contrast to noise ratio (CNR) in eye lens section and thyroid section were measured.Results The crgan doses of lens and thyroid were 19.8 and 26 mGy at 120 kV and 200 mAs,as well as 13.3 and 22.2 mGv at X-CARE mode.Compared with the manual selection of 120 kV,the combination of CARE kV and CARE Dose 4D made the values of CTDIvol drop from 13.1 to 10.1 mGy,the doses of eye lens and thyroid from 16.6 and 20.8 mGy to 23.7 and 19.9 mGy respectively,while the image quality reducedsignificantly.Compared with CARE Dose 4D + 120 kV,the organ doses of eye lens and thyroid were reduced from 20.8 and 23.7 mGy to 9.6 and 15.1 mGy for with additional X-CARE,while CTDIvol dropped from 13.1 to 9.3 mGy.When the combination of CARE Dose 4D + CARE kV + X-CARE was used,CTDIvol and organ doses were reduced to a minimum,when the CNRs of head and neck were also minimized.Conclusions The scanning mode CARE Dose 4D + 120 kV + X-CARE for head and CARE Dose 4D + CARE kV for neck can effectively reduce the radiation dose while keeping good image quality.When requirements for image quality are not high,CARE Dose 4D + CARE kV + X-CARE mode can be selected to reduce the radiation dose significantly.
8.Emergency Drug Supply Mechanism in Women and Children’s Special Hospital During Earthquake Disaster
Qunfen XU ; Yunzhu LIN ; Yantao LIU ; Lingli ZHANG
China Pharmacy 2007;0(34):-
OBJECTIVE:To explore an emergency drug supply mechanism for women and children’s special hospital during earthquake disaster. METHODS: The practice of drug supply in our hospital after "5?12" Wenchuan earthquake was analyzed. RESULTS: The daily and post-earthquake medicine supply of the hospital was guaranteed,including the drugs which supply to the medical treatment rescues team in the disaster area;and the principle and approach of emergency drug supply in women and children's special hospital during earthquake disaster has been established. CONCLUSIONS: The emer-gency drug supply in women and children’s special hospital should cover drugs used for wounded women and children in addition to those special drugs used for earthquake injuries. All the links including drug plan,drug purchase,quantity monitoring and drugs needed for rescue should be considered in detail to form a fast and smooth hospital emergency drug supply mechanism.
9.Construction of a lentivirus vector for RNA interference of myosin Va and its effect on motility and migration of PG cells
Linxiang LAN ; Yantao DU ; Wei ZHAO ; Zhiqian ZHANG
Acta Anatomica Sinica 2009;40(6):891-896
Objective To construct a lentivirus vector for RNA interference targeting myosin Va gene and to observe its effect on motility and migration of human pulmonary giant cell carcinoma PG cells. Methods Based on the efficient target sequence for myosin Va RNAi, two pairs of oligo DNA containing myosin Va RNAi target sequence or scramble sequence were synthesized and inserted into pSuper vector, followed by sequence analysis. The expressing cassette H1 promoter-shM5A/shCON from the recombinant pSuper plasmid was then transferred to the lentivirus vector plenti4, and the recombinant lentivirus was packaged. PG cells were transduced with the packaged lentivirus and the positive cells were screened by zeocin selection. RT-PCR was performed to determine the myosin Va RNAi efficiency in zeocin-resistant PG cells, and wounding assay and Boyden chamber assay were utilized to examine the capabilities of motility and migration in myosin Va RNAi PG cells. Results Restriction enzyme digestion and sequencing confirmed the successful construction of the lentivirus vector containing myosin Va RNAi target or scramble sequence. RT-PCR result showed that myosin Va mRNA levels were remarkably reduced in lentivirus-based myosin Va RNAi PG cells. The abilities of motility and migration were also significantly inhibited in lentivirus-based myosin Va RNAi PG cells, as demonstrated in wounding assay and Boyden chamber assay.Conclusion Myosin Va RNAi lentivirus vector was successfully constructed and efficiently repressed myosin Va expression in PG cells. Repression of myosin Va by RNAi led to the inhibition of PG cells motility and migration, indicating that there might exist correlation between the expression of myosin Va and cancer progression.
10.Calculation of Jobs Intensity for Optimization of Shift Schemes
Li CHEN ; Fang WANG ; Yantao LIU ; Lingli ZHANG
China Pharmacy 2007;0(28):-
OBJECTIVE:To explore and extend a reasonable scheduling mode suitable for outpatient pharmacy.METHODS:The traditional scheduling mode was studied,and the fluctuation of the job intensity of dispensing personnel was revealed by drawing charts.In view of the disadvantage of the traditional scheduling mode,a new scheduling mode using mathematical conversion was adopted.RESULTS:Due to the new scheduling mode,the fluctuation of job intensity and the total man-hours were significantly decreased.CONCLUSIONS:Computing work intensity can help reasonably distribute and utilize the present human resources.