1.Optimization of Preparation Technology for Zushima Gel Cream
Bin FAN ; Xiaofeng SHI ; Li LIN ; Junhan ZHANG ; Quhuan MA ; Wei SHEN ; Dongyan LIU ; Xindi WANG
Chinese Journal of Information on Traditional Chinese Medicine 2016;23(10):104-106
Objective To optimize preparation process of Zushima Gel Cream. Methods The comprehensive evaluation set sensory evaluation, initial adhesive force, viscous force, and peeling strength score as indexes. The mixing time, refining temperature, mixing speed, and powder adding sequence were investigation factors. Orthogonal experiment was used to optimize forming process. Results Conditions of optimized preparation process were as following: add Zushima powder in Viscomate NP-700 and glycerol; mixing time was 5 min; refining temperature was 40 ℃; mixing speed was 100 r/min. Conclusion The preparation process is good and optimized Zushima Gel Cream has a good adhesive force, good glossiness and excipients. The preparation process is good.
2.Performance evaluation of 20 blood glucose meters for home use testing
Junhan WANG ; Gang HUANG ; Rong LU ; Hong JIANG ; Min FENG ; Wei YAO ; Yanming CHEN ; Hongyun HU
International Journal of Laboratory Medicine 2015;(6):808-810
Objective To evaluate the precision and accuracy of blood glucose meter(BGM ) for community home use testing . Methods According to the In Vitro Diagnostic Test Systems‐Requirements for Blood Glucose Monitoring Systems for Self‐Testing in Managing Diabetes Mellitus in DIN EN ISO15197 :2013 .Capillary blood and venous blood were tested by BGM and the laborato‐ry biochemical analyzer respectively .The measurement results of each BGM were compared with the results of the biochemical ana‐lyzer for conducting the bias analysis .Results In evaluated 20 BGM ,none of them met the requirements of ISO15197 :2013(when blood glucose concentrations < 5 .5 mmol/L ,the bias in 95% of detection results is within the range of ± 0 .83 mmol/L ;when blood glucose concentrations ≥ 5 .5 mmol/L ,the bias in 95% of detection results is within the range of ± 15% .Only 11 imported BGM (55% ) met the state standard .Conclusion The bias of 20 BGM ranged - 28 .7% - 3 .8% ,with the average bias of - 12 .2% . These detection results will bring the large risk of therapy in the diabetic patients .The regular and standardized evaluation of BGM performance may ensure the quality of blood glucose self - monitoring .
3.Characterization and correction of astigmatism in children aged 6-12 years from urban and suburban counties of Xi'an city, Shaanxi Province, China
Junhan WEI ; Lu YE ; Qian YAO ; Rui LIU ; Guoyun ZHANG
International Eye Science 2025;25(5):831-838
AIM: To analyze the prevalence, severity, types, and correction of astigmatism in children, and provide scientific evidences for the prevention and treatment of refractive errors.METHODS: This cross-sectional study included 29 153 children aged 6-12 years from Xi'an and Lantian County, Shaanxi Province, China. Visual acuity and non-cycloplegic refraction were measured. Astigmatism was defined as an absolute cylindrical power ≥0.5 D in the right eye. Differences in astigmatism severity, type distribution, and refractive correction were analyzed across age, gender, and region.RESULTS:The prevalence of astigmatism increased with age, peaking at 11 years old(62.88%). Boys(57.10%)had a higher prevalence than girls(54.86%), and the municipal areas(58.29%)had a higher prevalence than county areas(51.75%). Mild astigmatism was the most common(63.82%), with moderate astigmatism increasing with age. The highest prevalence of high astigmatism was observed in 11-years-old children(9.68%). Compound myopic astigmatism(59.28%)and mixed astigmatism(25.16%)were the most frequent types. With increasing age, compound myopic astigmatism increased, while simple myopic, simple hyperopic, and compound hyperopic astigmatism decreased. Mixed astigmatism increased from ages 6 to 7, but declined from ages 7 to 12. For astigmatic axis types, with-the-rule astigmatism was the most prevalent(81.06%)and increased with age, peaking at 11 years(85.74%). Against-the-rule astigmatism showed a declining trend, while oblique astigmatism remained relatively stable. Distribution differences in astigmatism types and axes by gender and region were observed. Significant differences in astigmatism severity, types, and axis types across different ages, genders, and regions were observed(all P<0.05). The overall refractive correction rate for children with astigmatism was only 40.18%.CONCLUSION: The overall prevalence of astigmatism among children aged 6-12 years in Shaanxi Province was 56.02%, with higher prevalence observed in boys and in municipal areas. Age, gender, and region significantly influenced the prevalence of astigmatism. Notably, less than half of the children with astigmatism received refractive correction, highlighting the need for increased attention from parents and relevant authorities.