1.Analysis of patch test in 186 patients with rosacea
Shuanglu LIAO ; Jing PAN ; Yaqi ZHENG ; Yan WU ; Haixia LI ; Shaomin ZHONG
Chinese Journal of Laboratory Medicine 2025;48(6):701-706
Objective:To analyze patch test results in patients with rosacea, investigate the prevalence of contact sensitization, and identify common allergens, to provide relevant evidence for the diagnosis, treatment, and preventive interventions for rosacea.Methods:A cross-sectional retrospective survey was conducted to analyze the positive contact allergy rate and allergen distribution in 186 rosacea patients who underwent the 60-item China Standard Series Patch Test (CB-1000) at the Department of Dermatology, Peking University First Hospital, from January 2023 to September 2024.Results:Among the 186 patients, 159(85.5%) showed positive reactions in patch tests. The top three allergens with the highest positivity rates were: metal salts, preservatives and fragrances. The top 10 individual allergens with the highest positivity rates were: nickelsulfate hexahydrate 46.8%(87/186), cobaltchloride hexahydrate 29.0%(54/186), hydroperoxides of linalool 15.1%(28/186), carba mix 14.0%(26/186), propolis 9.7%(18/186), fragrance mix Ⅰ 8.6%(16/186), methyl dibromo glutaronitrile 8.1%(15/186), Peru balsam 7.5%(14/186), gold sodium thiosulfate dihydrate 7.5%(14/186), and hydroperoxides of limonene 7.5%(14/186). The overall positivity rate for cosmetics-related allergens was 56.5% (105/186), with the top five allergens being: hydroperoxide of linalool 15.1%(28/186), propolis 9.7%(18/186), fragrance mix Ⅰ 8.6%(16/186), methyl dibromo glutaronitrile 8.1%(15/186), and Peru balsam 7.5%(14/186).Conclusion:The overall positivity rate for patch test allergens in rosacea patients is high. The most common allergen types are metal salts, preservatives, and fragrance agents. Cosmetics-related allergens also show a high positivity rate. Rosacea patients should avoid exposure to these allergens.
2.Analysis of the current status of skin contact allergy of wearable devices
Yaqi ZHENG ; Yunhong HAO ; Shuanglu LIAO ; Qinyang XIAO ; Wenxuan ZHANG ; Haixia LI ; Shaomin ZHONG
Chinese Journal of Laboratory Medicine 2025;48(6):686-692
In recent years, the wearable device market has been developing rapidly. Wearable devices with personalized health management and chronic disease monitoring are widely used in daily life by virtue of their powerful performance and convenience. However, with the popularization of these devices, skin adverse reactions caused by prolonged wearable wear are gradually increasing, among which allergic contact dermatitis (ACD) is the most common. Common allergens such as acrylates, methacrylates, rosin, chromium and nickel are widely present in adhesives and device components and are the main causes of ACD. Understanding the presence of potential sensitizers in wearable devices can help in diagnostic patch testing in users experiencing skin reactions caused by the device. Future innovations in wearable device materials will focus on the adoption of safer bonding technologies and biocompatible materials to reduce the risk of allergy. The introduction of new materials brings both development opportunities and challenges. Educating users on proper device usage, identifying specific allergens, selecting hypoallergenic materials, and optimizing device maintenance are important for reducing the risk of ACD.
3.Chemical Composition and Biological Activity of Dendrobium primulinum
Runqi GU ; Qinchang LIAO ; Ying ZHOU ; Canyu HE ; Yaqi ZHAO ; Chenxi ZHUANG ; Yupeng LI
Journal of Kunming Medical University 2025;46(3):7-10
Objective To study the chemical composition of and identify its active components.Methods The chemical constituents of Dendrobium Primulinum were extracted using solvents,followed by separation through silica gel and gel column chromatography,with structural identification performed via spectral analysis.The in vitro activity screening of some compounds was conducted using the MTT assay.Results Seven compounds were isolated and identified from Dendrobium primulinum,namely 7-dihydroxy-2,4-methoxyphenanthrene(1),densiflorol B(2),3,4,7-trihydroxy-2-methoxy-9,10-dihydrophenanthrene(3),thunalbene(4),phillygenin(5),3 β-hydroxy-5 α,8 α-epidioxyergosta-6,22-diene(6)、4-hydroxy-3,5-dimethoxy--cinnamaldehyde(7).Antitumor activity tests were performed on compounds 1 to 5,revealing that compound 1 exhibited strong inhibitory activity against the MCF-7/S cell line,with an IC50 of 5.13 μM.Conclusion Compounds 1 to 6 are reported for the first time from Dendrobium primulinum,while compound 7 is reported for the first time from this genus.
4.Analysis of patch test in 186 patients with rosacea
Shuanglu LIAO ; Jing PAN ; Yaqi ZHENG ; Yan WU ; Haixia LI ; Shaomin ZHONG
Chinese Journal of Laboratory Medicine 2025;48(6):701-706
Objective:To analyze patch test results in patients with rosacea, investigate the prevalence of contact sensitization, and identify common allergens, to provide relevant evidence for the diagnosis, treatment, and preventive interventions for rosacea.Methods:A cross-sectional retrospective survey was conducted to analyze the positive contact allergy rate and allergen distribution in 186 rosacea patients who underwent the 60-item China Standard Series Patch Test (CB-1000) at the Department of Dermatology, Peking University First Hospital, from January 2023 to September 2024.Results:Among the 186 patients, 159(85.5%) showed positive reactions in patch tests. The top three allergens with the highest positivity rates were: metal salts, preservatives and fragrances. The top 10 individual allergens with the highest positivity rates were: nickelsulfate hexahydrate 46.8%(87/186), cobaltchloride hexahydrate 29.0%(54/186), hydroperoxides of linalool 15.1%(28/186), carba mix 14.0%(26/186), propolis 9.7%(18/186), fragrance mix Ⅰ 8.6%(16/186), methyl dibromo glutaronitrile 8.1%(15/186), Peru balsam 7.5%(14/186), gold sodium thiosulfate dihydrate 7.5%(14/186), and hydroperoxides of limonene 7.5%(14/186). The overall positivity rate for cosmetics-related allergens was 56.5% (105/186), with the top five allergens being: hydroperoxide of linalool 15.1%(28/186), propolis 9.7%(18/186), fragrance mix Ⅰ 8.6%(16/186), methyl dibromo glutaronitrile 8.1%(15/186), and Peru balsam 7.5%(14/186).Conclusion:The overall positivity rate for patch test allergens in rosacea patients is high. The most common allergen types are metal salts, preservatives, and fragrance agents. Cosmetics-related allergens also show a high positivity rate. Rosacea patients should avoid exposure to these allergens.
5.Analysis of the current status of skin contact allergy of wearable devices
Yaqi ZHENG ; Yunhong HAO ; Shuanglu LIAO ; Qinyang XIAO ; Wenxuan ZHANG ; Haixia LI ; Shaomin ZHONG
Chinese Journal of Laboratory Medicine 2025;48(6):686-692
In recent years, the wearable device market has been developing rapidly. Wearable devices with personalized health management and chronic disease monitoring are widely used in daily life by virtue of their powerful performance and convenience. However, with the popularization of these devices, skin adverse reactions caused by prolonged wearable wear are gradually increasing, among which allergic contact dermatitis (ACD) is the most common. Common allergens such as acrylates, methacrylates, rosin, chromium and nickel are widely present in adhesives and device components and are the main causes of ACD. Understanding the presence of potential sensitizers in wearable devices can help in diagnostic patch testing in users experiencing skin reactions caused by the device. Future innovations in wearable device materials will focus on the adoption of safer bonding technologies and biocompatible materials to reduce the risk of allergy. The introduction of new materials brings both development opportunities and challenges. Educating users on proper device usage, identifying specific allergens, selecting hypoallergenic materials, and optimizing device maintenance are important for reducing the risk of ACD.
6.The exploration of instructional design of Chinese medicine gynecology in non-medicine medical doctoral program
Jie GAO ; Yaqi LIAO ; Ling ZHU ; Songping LUO
Chinese Journal of Medical Education Research 2016;15(5):517-520
The National Excellent Course of Gynecology of Chinese Medicine is a main clinical subject of TCM,which puts emphasis on clinical application.The non-medical doctoral students are lack of the knowledge of traditional Chinese medicine and clinical experience,and the existing classroom teaching has the problem of the basic theory of traditional Chinese medicine being out of line with the clinical application,which has become the hindering factors of TCM gynecology teaching.By designing and perfecting the process of preparation before class-classroom teaching-discussion teaching-clinical probation-after class feedback,the related teaching teachers better improve the non medical doctoral students' ability to put the traditional Chinese medicine gynecology basic knowledge into clinical practice,which is well received by the students.
7.Professor OUYANG Hui-qing's explorations and practice on teaching of traditional Chinese medicine
Yaqi LIAO ; Songping LUO ; Jieming HUANG ; Limian XU ; Ying ZHAO
Chinese Journal of Medical Education Research 2013;(1):51-55
Professor OUYANG Hui-qing's gradually formed her own teaching concept of traditional Chinese medicine through long-term teaching practice:the most important teaching aim is to cultivate talents of traditional Chinese medicine.Clinical practice together with classroom teaching can promote the growing knowledge of medical students.Clinical practices are necessary and should penetrate culture and academic tradition of traditional Chinese medicine.OUYANG Hui-qing's concepts on talents are:cultivating teaching faculties is the key to the development of the teaching team,the core of construction of the teaching and research section,and the basis of construction of the discipline.OUYANG Hui-qing's management concepts are:the dean of the teaching and research section is the practitioner of personnel training practice and the undertaker of teaching team development.
8.Intraperitoneal application of chemotherapy in cervical cancer
Yaqi LI ; Xun GONG ; Lianying LUO ; Yan MA ; Yu ZHANG ; Weiting YANG ; Zhongxiu WU ; Guofang LIAO
Chinese Journal of Primary Medicine and Pharmacy 2012;19(2):203-204
Objective To observe the clinical efficacy and toxicity of intraperitoneal chemotherapy combined with intravenous chemotherapy in treatment of cervical cancer.Methods The experimental group of 40 patients received systemic chemotherapy of docetaxel and cisplatin combined abdominal intraperitoneal high-frequency hyperthermia in the control group,40 patients received docetaxel plus cisplatin chemotherapy,The efficacy and toxicity were observed.Results The complete remission rate of observotion group was 82.5%,significantly higher than 62.5% in control group.Effective rate in observation group was 92.5% and also significantly higher than 75.0% in control gronp.After 6 cycles of chemotherapy,the improvement of the experimental group was 85.0% higher than 57.5 % in control gronp.The differemles between the two groups was statistically significant(P < 0.05); the main side effects during chemotherapy are gastrointestinal reactions,since the cells decreased,hair loss,the difference was not statistically significant(P >0.05).Conclusion The chemotherapy of docetaxel and cisplatin intraperitoneal chemotherapy can significantly improve the treatment of cervical cancer,without increasing side effects.
9.Research on Chinese medical educator-LUO Yuan-kai's Ideas of Education (2)
Yaqi LIAO ; Songping LUO ; Yan WANG
Chinese Journal of Medical Education Research 2011;10(5):524-528
LUO Yuan-kai's idea on running the school, the school orientation, education and management and also the concept medical subject development is the most important part of his educational ideas, and it is the real practice and development of his educational ideas on higher Chinese medical education, and it is the practical support on how he became the famous Chinese medical educator and made his greatest educational achievement.
10.Research on Chinese medical educator - LUO Yuan-kai's ideas of education (3)
Yaqi LIAO ; Songping LUO ; Yan WANG
Chinese Journal of Medical Education Research 2011;10(6):641-644
LUO Yuan-kai's caring about Chinese medicine, taking his responsibility on teaching Chinese medicine and of course, his great knowledge, all made him a good educator. He made great contribution to Chinese higher medical education. His idea of education is the valuable spiritual wealth of Chinese higher medical education and has also profound inspiration to the development and innovation of 21st century's Chinese medical education.

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