1.Practice and experience of Editorial office of Genes & Diseases in launching and managing English journals
Qiushan TANG ; Ping LUO ; Xueying ZHANG ; Zongshun TANG ; Zhengyang CAI
Chinese Journal of Medical Education Research 2014;13(10):1073-1077
Currently,China is confronted with the situation of high quality papers and low impact journals.Quality and quantity of English science,technology and medical(STM) journals in our country can not meet the publishing demand of scientific research papers,which becomes the inner boost of developing English STM journals.Along with the implementation of Project for Enhancing International Impact of China STM Journals,a growing number of STM journals launched international cooperation in journal publishing.This paper introduced Genes & Diseases' strategy of launching and managing English journals in cooperation with foreign publisher.Genes & Diseases strictly follows international publishing practice.The editorial office of Genes & Diseases fully aroused the enthusiasm of editors,editorial board members and the editor-in-chief to solicit manuscripts.Meanwhile,the office of Genes & Diseases took advantages of website,social media,Emails,meeting and academic activity,etc to promote the journals.All these experiences can be used as references for those intended or already started to lunch English STM journal.
4.Creation of Consistent Burn Wounds: A Rat Model.
Elijah Zhengyang CAI ; Chuan Han ANG ; Ashvin RAJU ; Kong Bing TAN ; Eileen Chor Hoong HING ; Yihua LOO ; Yong Chiat WONG ; Hanjing LEE ; Jane LIM ; Shabbir M MOOCHHALA ; Charlotte A E HAUSER ; Thiam Chye LIM
Archives of Plastic Surgery 2014;41(4):317-324
BACKGROUND: Burn infliction techniques are poorly described in rat models. An accurate study can only be achieved with wounds that are uniform in size and depth. We describe a simple reproducible method for creating consistent burn wounds in rats. METHODS: Ten male Sprague-Dawley rats were anesthetized and dorsum shaved. A 100 g cylindrical stainless-steel rod (1 cm diameter) was heated to 100degrees C in boiling water. Temperature was monitored using a thermocouple. We performed two consecutive toe-pinch tests on different limbs to assess the depth of sedation. Burn infliction was limited to the loin. The skin was pulled upwards, away from the underlying viscera, creating a flat surface. The rod rested on its own weight for 5, 10, and 20 seconds at three different sites on each rat. Wounds were evaluated for size, morphology and depth. RESULTS: Average wound size was 0.9957 cm2 (standard deviation [SD] 0.1845) (n=30). Wounds created with duration of 5 seconds were pale, with an indistinct margin of erythema. Wounds of 10 and 20 seconds were well-defined, uniformly brown with a rim of erythema. Average depths of tissue damage were 1.30 mm (SD 0.424), 2.35 mm (SD 0.071), and 2.60 mm (SD 0.283) for duration of 5, 10, 20 seconds respectively. Burn duration of 5 seconds resulted in full-thickness damage. Burn duration of 10 seconds and 20 seconds resulted in full-thickness damage, involving subjacent skeletal muscle. CONCLUSIONS: This is a simple reproducible method for creating burn wounds consistent in size and depth in a rat burn model.
Animals
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Burns*
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Erythema
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Extremities
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Hot Temperature
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Humans
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Male
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Models, Animal*
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Muscle, Skeletal
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Rats
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Rats, Sprague-Dawley
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Skin
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Viscera
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Water
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Wounds and Injuries*
5.Bio-Conjugated Polycaprolactone Membranes: A Novel Wound Dressing.
Elijah Zhengyang CAI ; Erin Yiling TEO ; Lim JING ; Yun Pei KOH ; Tan Si QIAN ; Feng WEN ; James Wai Kit LEE ; Eileen Chor Hoong HING ; Yan Lin YAP ; Hanjing LEE ; Chuen Neng LEE ; Swee Hin TEOH ; Jane LIM ; Thiam Chye LIM
Archives of Plastic Surgery 2014;41(6):638-646
BACKGROUND: The combination of polycaprolactone and hyaluronic acid creates an ideal environment for wound healing. Hyaluronic acid maintains a moist wound environment and accelerates the in-growth of granulation tissue. Polycaprolactone has excellent mechanical strength, limits inflammation and is biocompatible. This study evaluates the safety and efficacy of bio-conjugated polycaprolactone membranes (BPM) as a wound dressing. METHODS: 16 New Zealand white rabbits were sedated and local anaesthesia was administered. Two 3.0x3.0 cm full-thickness wounds were created on the dorsum of each rabbit, between the lowest rib and the pelvic bone. The wounds were dressed with either BPM (n=12) or Mepitel (n=12) (control), a polyamide-silicon wound dressing. These were evaluated macroscopically on the 7th, 14th, 21st, and 28th postoperative days for granulation, re-epithelialization, infection, and wound size, and histologically for epidermal and dermal regeneration. RESULTS: Both groups showed a comparable extent of granulation and re-epithelialization. No signs of infection were observed. There was no significant difference (P>0.05) in wound size between the two groups. BPM (n=6): 8.33 cm2, 4.90 cm2, 3.12 cm2, 1.84 cm2; Mepitel (n=6): 10.29 cm2, 5.53 cm2, 3.63 cm2, 2.02 cm2; at the 7th, 14th, 21st, and 28th postoperative days. The extents of epidermal and dermal regeneration were comparable between the two groups. CONCLUSIONS: BPM is comparable to Mepitel as a safe and efficacious wound dressing.
Bandages*
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Granulation Tissue
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Hyaluronic Acid
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Inflammation
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Membranes*
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Pelvic Bones
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Rabbits
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Re-Epithelialization
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Regeneration
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Ribs
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Skin
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Wound Healing
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Wounds and Injuries*
6.Tuberculosis care: enhancing directly observed therapy in a peri-urban, low socioeconomic status neighbourhood.
Elijah Zhengyang CAI ; Si Min CHUA ; Monica TAN ; Paul Anantharajah TAMBYAH
Singapore medical journal 2019;60(7):334-336
Tuberculosis (TB) is a major health issue in the Philippines. TB-Care was introduced in 2011 to tackle pulmonary TB among the urban poor in Payatas, Quezon City, Philippines. We evaluated the efficacy of TB-Care in increasing treatment success and compliance rates. This retrospective case series reviewed 44 patients with pulmonary TB enrolled in TB-Care from 2013 to 2014. Diagnosis and treatment of pulmonary TB was made in accordance with World Health Organization guidelines. Treatment outcomes included cure, completed treatment, successfully treated, failed treatment and transferred to another facility. 14 (73.7%) out of 19 patients tested were bacteriologically cured. The average 100% compliance rate was 90.8% over six months. The programme successfully treated 39 (88.6%) patients. This was comparable to the overall national treatment success rate of 90% for Philippines and 79% for Singapore, with higher compliance rates than were previously reported in this community.
7.Optimizing outdoor smoking points outside large exhibition halls based on real-time on-site PM2.5 and CO2 monitoring
Jin SUN ; Chenxi YAN ; Zhuohui ZHAO ; Chenchen XIE ; Zhengyang GONG ; Hao TANG ; Kunlei LE ; Yuzhi CHENG ; Zhuyan YIN ; Jingyi YUAN ; De CHEN ; Yunfei CAI
Journal of Environmental and Occupational Medicine 2024;41(6):673-680
Background Improper settings of outdoor smoking points in public places may increase the risk of secondhand smoke exposure among the population. Conducting research on air pollution in and around smoking spots and related influencing factors can provide valuable insights for optimizing the setting of outdoor smoking points. Objective To investigate the influence of the number of smokers at outdoor smoking points and the distance on the diffusion characteristics of surrounding air pollutants, in order to optimize the setting of outdoor smoking points. Methods Surrounding the exhibition halls in the China International Import Expo (CIIE), two outdoor smoking points were randomly selected, one on the first floor (ground level) and the other on the second floor (16 m above ground), respectively. At 0, 3, 6, and 9 m from the smoking points in the same direction, validated portable air pollutant monitors were used to measure the real-time fine particulate matter (PM2.5) and carbon dioxide (CO2) concentrations for consecutive 5 d during the exhibition, as well as the environmental meteorological factors at 0 m with weather meters including wind speed, wind direction, and air pressure. An open outdoor atmospheric background sampling point was selected on each of the two floors to carry out parallel sampling. Simultaneously, the number of smokers at each smoking point were double recorded per minute. The relationships between the number of smokers, distance from the smoking points, and ambient PM2.5 and CO2 concentrations were evaluated by generalized additive regression models for time-series data after adjustment of confounders such as temperature, relative humidity, and wind speed. Results The median numbers of smokers at smoking points on the first and second floors were 6 [interquartile range (IQR): 3, 9] and 9 (IQR: 6, 13), respectively. Windless (wind speed <0.6 m·s−1) occupied most of the time (85.9%) at both locations. The average concentration of ambient PM2.5 at the smoking points (0 m) [mean ± standard deviation, (106±114) μg·m−3] was 4.2 times higher than that of the atmospheric background [(25±7) μg·m−3], the PM2.5 concentration showed a gradient decline with the increase of distance from the smoking points, and the average PM2.5 concentration at 9 m points [(35±22) μg·m−3] was close to the background level (1.4 times higher). The maximum concentration of CO2 [(628±23) μmol·mol−1] was observed at 0 m, and its average value was 1.3 times higher than that of the atmospheric background [(481±40) μmol·mol−1], and there was no gradient decrease in CO2 concentration with increasing distance at 0, 3, 6, and 9 m points. The regression analyses showed that, taking smoking point as the reference, every 3 m increase in distance was associated with a decrease of ambient PM2.5 by 24.6 [95% confidence interval (95%CI): 23.5, 25.8] μg·m−3 (23.2%) and CO2 by 54.1 (95%CI: 53.1, 55.1) μmol·mol−1 (8.6%). Every one extra smoker at the smoking point was associated with an average increase of PM2.5 and CO2 by 2.0 (95%CI: 1.7, 2.8) μg·m−3 and 1.0 (95%CI: 0.7,1.2) μmol·mol−1, respectively. The sensitivity analysis indicated that, under windless conditions, the concentrations of PM2.5 and CO2 at the smoking points were even higher but the decreasing and dispersion characteristics remained consistent. Conclusion Outdoor smoking points could significantly increase the PM2.5 concentrations in the surrounding air and the risks of secondhand smoke exposure, despite of the noticeable decreasing trend with increasing distance. Considering the inevitable poor dispersion conditions such as windless and light wind, outdoor smoking points are recommended to be set at least 9 m or farther away from non-smoking areas.