1.The research progress of fire needling treatment for vitiligo
Meijiao BAI ; Yingnan WU ; Baixue LIU ; Xiuyan WANG ; Xijun YU
International Journal of Traditional Chinese Medicine 2017;39(7):666-668
The study of vitiligo has made a huge progress due to the development of medical technology. Some new treatment idea, methods and integrated therapies have been considered as the trending alternatives. This paper summarized the treatment of different regular treatment combined with fire needling for vitiligo in clinic.
2.Effects of Chinese herbal medicine Guanxinkang on expression of PPARγ-LXRα-ABCA1 pathway in ApoE-knockout mice with atherosclerosis.
Meijiao MAO ; Junping HU ; Cong WANG ; Yiyi ZHANG ; Ping LIU
Journal of Integrative Medicine 2012;10(7):814-20
To observe the effects of Guanxinkang (GXK) decoction, a compound traditional Chinese herbal medicine, on expressions of peroxisome proliferator-activated receptor γ (PPARγ), liver X receptor α (LXRα) and ATP-binding cassette transporter A1 (ABCA1) in apolipoprotein E (ApoE)-knockout mice with atherosclerosis.
3.Effects of Chinese herbal medicine Guanxinkang on lipid metabolism and serum C-reactive protein, amyloid A protein and fibrinogen in apolipoprotein E-knockout mice with atherosclerosis.
Meijiao MAO ; Junping HU ; Furong CHEN ; Yiyi ZHANG ; Ping LIU
Journal of Integrative Medicine 2011;9(3):306-12
To observe the effects of Guanxinkang (GXK) decoction, a compound traditional Chinese herbal medicine, on serum lipids and apolipoprotein A I (ApoA I), apolipoprotein B (ApoB), apolipoprotein E (ApoE), C-reactive protein (CRP), serum amyloid A protein (SAA) and fibrinogen (Fbg) concentrations of ApoE-knockout mice with atherosclerosis, and to explore the mechanism of GXK decoction in anti-atherosclerosis.
4.Exploring the investigation level for individual monitoring for medical radiation workers in Guangdong province
Weizhen GUO ; Xiaolian LIU ; Meijiao QIU ; Mingfang LI ; Sufen ZHANG ; Weiji MAI ; Yuxin JIA
Chinese Journal of Radiological Medicine and Protection 2021;41(2):128-133
Objective:To explore the investigation level of individual monitoring for medical radiation workers.Methods:Monitoring and analysis of individual doses to the medical radiation workers in Guangdong province were performed, from 2016 to 2019, by the Individual Dose Monitoring Department of Guangdong Provincial Hospital for Occupational Disease Prevention and Control.Results:The numbers of monitored workers were diagnostic radiology 53 674, dental radiology 2 563, nuclear medicine 5 001, radiotherapy 16 687, interventional radiology 22 272 and others 2 087 from 2016 to 2019, of which the number of individuals with doses in excess of investigation level 1.25 mSv, were 76, 6, 18, 28, 133 and 2 respectively. The non-real doses made up 67.1 %, 100 %, 55.6 %, 82.1 %, 76.7 % and 100 % of their respective totals. Their 99th percentile doses P99 were 0.37, 0.39, 0.67, 0.35, 0.54 and 0.30 mSv, and the average periodic dose equivalent were 0.07, 0.06, 0.11, 0.06, 0.07 and 0.05 mSv respectively, indicating a statistically significant difference existing in the average annual effective dose between groups ( Z=-26.139--2.681, P<0.001). Conclusions:Due to non-reality of doses in excess of investigation levels and high labor cost, it is suggested to currently use 0.40 mSv per 3 months as investigation level for diagnostic radiology, dental radiology, radiotherapy and others, and 0.70 mSv per 3 months as for nuclear medicine and interventional radiology.
5.The performance of plastic scintillator detector in photon and electron beam
Meijiao WANG ; Kaining YAO ; Sha LI ; Haizhen YUE ; Zhuolun LIU ; Fan JIANG ; Hao WU ; Ruoxi WANG
Chinese Journal of Radiological Medicine and Protection 2021;41(3):205-211
Objective:To investigate the performance of W2 plastic scintillator in megavolt photon and electron beams.Methods:The photon and electron beam energy provided by linear accelerator was used to collect data of the W2 scintillator. The parameters include the electrometer reading stability, W2 dose and dose rate linearity, and angular response. And the dose uncertainty of the W2 correction factors was also investigated.Results:The standard deviation of the electrometer reading stability was between 0.03 and 0.47. The linear regression factors of W2 dose were all 1.0; the maximum deviation of the dose rates was 0.61%. The Cerenkov light radiation correction factor(CLR) for 6 and 10 MV were 0.741 and 0.746, respectively, and the CLR for 6, 9, 12 and 15 MeV were 0.750, 0.753, 0.757 and 0.757, respectively. The maximum deviation of dose uncertainty for 15 MeV was 3.15%.Conclusions:The signal obtained by the blue and green channel was no angular dependence, the same as the high-energy electron beam, which verified that the Cerenkov radiation correction factor has good linearity. W2 plastic scintillator can be applied to non-coplanar radiotherapy dosimetry.
6.Modeling the correlations between radiation dose and scanning parameters of XVI cone beam CT
Zhengxian LI ; Jingjing ZHAO ; Meijiao WANG ; Li ZHOU ; Dong LIU ; Bosheng WANG ; Shaofei ZONG ; Jingchao MA ; Yibao ZHANG
Chinese Journal of Radiological Medicine and Protection 2017;37(8):618-622
Objective To quantify the correlations between Elekta XVI cone beam CT dose and various scanning protocols,providing mathematical models to assess the protocol-dependency of imaging dose during imnage guided radiotherapy.Methods Based on standard protocols and various combinations of kVp and mA on an XVI mounted on an Elekta Versa HD accelerator,the air KERMA was measured at various positions in a standard PTW CTDI body phantom using calibrated PTW 30009 kV chamber and UNIDOS webline electrometer.Weighted CT dose index (CTDIw) was computed thereafter.SigmaPlot 10.0 was used to fit the measurements against mA and/or kVp yielding empirical functions.Results Under standard protocols,the CTDIw of Varian OBI was only 11.23% (chest) and 9.15% (pelvis) of Elekta XVI.Using the default and other 4 investigated kVp values,the central and peripheral KERMA were both proportional to mA,and vet the slope value a varied dramatically from 0.479 to 6.679.Major affecting factors included kVp settings,measurement locations,and dosimetric mnetrics,etc.None linear regressions were used to fit kVp against KERMA at various locations and CTDIw (R2 > 0.997).The differences between all coefficients were statistically significant (P < 0.05).The impact of changing both mA and kVp on the dose to phantom center can be described as mGy =(5.917-0.197 ×kVp+0.002 × kVp2-5.063 × 10-6 × kVp3) × mA.Conclusions Imaging dose of Elekta XVI is strongly dependent on scanning paraneters.The proposed mathematical models can be used as efficient and robust indicators of such dependency.
7. Clinical study on massage combined with external application of Xiaoji powder on Shenque point in treating children's functional constipation with gastrointestinal heat accumulation syndrome
Meijiao LIN ; Junhong WANG ; Yuqing LIU
International Journal of Traditional Chinese Medicine 2019;41(11):1205-1207
Objective:
To evaluate the effect of massage combined with external application of
8.Cost?effective analysis of seasonal influenza vaccine in elderly Chinese population
Chen CHEN ; Guoen LIU ; Meijiao WANG ; Tianfu GAO ; Huiping JIA ; Han YANG ; Luzhao FENG
Chinese Journal of Preventive Medicine 2019;53(10):993-999
Objective To evaluate the cost?effectiveness of seasonal influenza vaccination, compared to no vaccination, for the elderly aged ≥60 years old in China. Methods A static life?time Markov model is conducted to simulate the Chinese elderly population aged≥60 years old. Taking the health care system perspective, one?year analytic cycle length is used for each influenza season. The model was assumed to be repeated until the individual reaches 100 years old. Three interventions were evaluated, including no vaccination, annual trivalent influenza vaccination, and annual quadrivalent influenza vaccination. Using the threshold of 3 times GDP per capita per Quality?adjusted life year (QALY) (193 932/QALY), the incremental cost?effectiveness ratio (ICER) was calculated to compare the cost?effectiveness of every two interventions.Model inputs like data for costs and utilities were from studies on Chinese population if they were available. QALY was used to measure health utility. One?way sensitivity analysis and probabilistic sensitivity analysis were adopted to quantify the level of confidence of the model output. Results The total influenza associated costs of no vaccination would be 603 CNY per person, while the total costs of annual trivalent vaccination would be 1 027 CNY. Using trivalent vaccine would result in 0.007 QALY gained per person compared to no vaccination, with an increased cost of 424 CNY per person. The ICER of trivalent vaccination over no vaccination for all the elderly population in China would be 64 026 CNY per QALY gained, which was less than the threshold of 3 times GDP per capita. The total costs of annual quadrivalent vaccination would be 1 988 CNY. Using quadrivalent vaccine would result in 0.008 additional QALY gained per person compared to no vaccination, with an increased cost of 1 385 CNY per person. The ICER of quadrivalent vaccination over no vaccination would be 174 081 CNY per QALY gained, which was less than the threshold of 3 times GDP per capita. Conclusion Vaccinating elderly population would improve health utilities at higher health care costs for the elderly. Using the threshold of 3 times GDP per capita per QALY (193 932/QALY), both trivalent and quadrivalent vaccination would be cost?effective compared to no vaccination in elderly Chinese population.
9.Cost?effective analysis of seasonal influenza vaccine in elderly Chinese population
Chen CHEN ; Guoen LIU ; Meijiao WANG ; Tianfu GAO ; Huiping JIA ; Han YANG ; Luzhao FENG
Chinese Journal of Preventive Medicine 2019;53(10):993-999
Objective To evaluate the cost?effectiveness of seasonal influenza vaccination, compared to no vaccination, for the elderly aged ≥60 years old in China. Methods A static life?time Markov model is conducted to simulate the Chinese elderly population aged≥60 years old. Taking the health care system perspective, one?year analytic cycle length is used for each influenza season. The model was assumed to be repeated until the individual reaches 100 years old. Three interventions were evaluated, including no vaccination, annual trivalent influenza vaccination, and annual quadrivalent influenza vaccination. Using the threshold of 3 times GDP per capita per Quality?adjusted life year (QALY) (193 932/QALY), the incremental cost?effectiveness ratio (ICER) was calculated to compare the cost?effectiveness of every two interventions.Model inputs like data for costs and utilities were from studies on Chinese population if they were available. QALY was used to measure health utility. One?way sensitivity analysis and probabilistic sensitivity analysis were adopted to quantify the level of confidence of the model output. Results The total influenza associated costs of no vaccination would be 603 CNY per person, while the total costs of annual trivalent vaccination would be 1 027 CNY. Using trivalent vaccine would result in 0.007 QALY gained per person compared to no vaccination, with an increased cost of 424 CNY per person. The ICER of trivalent vaccination over no vaccination for all the elderly population in China would be 64 026 CNY per QALY gained, which was less than the threshold of 3 times GDP per capita. The total costs of annual quadrivalent vaccination would be 1 988 CNY. Using quadrivalent vaccine would result in 0.008 additional QALY gained per person compared to no vaccination, with an increased cost of 1 385 CNY per person. The ICER of quadrivalent vaccination over no vaccination would be 174 081 CNY per QALY gained, which was less than the threshold of 3 times GDP per capita. Conclusion Vaccinating elderly population would improve health utilities at higher health care costs for the elderly. Using the threshold of 3 times GDP per capita per QALY (193 932/QALY), both trivalent and quadrivalent vaccination would be cost?effective compared to no vaccination in elderly Chinese population.
10.Effects of meditation relaxation therapy on sleep quality and emotion among breast cancer patients with chemotherapy
Yanting WEI ; Shulin LI ; Meijiao LIU
Chinese Journal of Modern Nursing 2018;24(24):2930-2932
Objective To explore the effects of meditation relaxation therapy on sleep quality and emotion among breast cancer patients with chemotherapy. Methods From October 2016 to September 2017, we selected 140 breast cancer patients with modified radical mastectomy and chemotherapy by convenience sampling. Patients treated between October 2016 and March 2017 were in control group, while patients treated between April and September 2017 were in observation group, 70 cases in each group. Patients of control group received conventional nursing. On the basis of control group, patients of observation group were treated with meditation relaxation therapy. Finally, patients were evaluated with the Pittsburgh Sleep Quality Index (PSQI), SAS and SDS before and after intervention. Results After intervention, the total score of PSQI, SAS and SDS of patients of observation group was (4.13±2.41), (44.4±5.12) and (39.4±4.93) respectively lower than those of control group (t=-2.138, 3.901, -4.654;P<0.05). Conclusions Meditation relaxation therapy can improve the sleep quality, anxiety and depression, and it can also promote psychosomatic rehabilitation.