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JYMS : Journal of Yeungnam Medical Science

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Man Joong Jeon 3 Articles
Estimation of Secondhand Smoke Exposure in Clubs Based on Urinary Cotinine Levels.
Yu Jin Lee, Young Ji Lee, Man Joong Jeon, Joon Sakong
Yeungnam Univ J Med. 2011;28(1):45-53.   Published online June 30, 2011
DOI: https://doi.org/10.12701/yujm.2011.28.1.45
  • 1,505 View
  • 2 Download
  • 1 Crossref
AbstractAbstract PDF
BACKGROUND
Increasing numbers of young people go to clubs. In Korea, however, no studies have been conducted regarding the exposure of club patrons to secondhand smoke. The present study was conducted to evaluate the degree of club customers' exposure to secondhand smoke. METHODS: The study subjects included 10 male and 12 female non-smokers. The investigational site was a club located in Daegu. Urine samples were collected before exposure to secondhand smoke in the club and 6 hours after a 3-hour exposure. The urine cotinine levels were measured via the LC-MS/MS method. A survey was conducted to collect data regarding the subjects' smoking experiences and the degree of exposure to secondhand smoke in their daily lives. RESULTS: The average urine cotinine level increased from 1.09 microg/L to 5.55 microg/L (p<0.05). No significant difference existed in the change in urine cotinine level between the male and female subjects. In addition, there was no significant difference in the change in urine cotinine level by the degree of exposure to secondhand smoke in daily life. CONCLUSIONS: The average urine cotinine level in all the subjects significantly increased after exposure to secondhand smoke. This is the first study on exposure to secondhand smoke in clubs; these results can be used to craft measures that reduce exposure to secondhand smoke in public places, such as clubs.

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  • Level of Blood Lead and Urine Cotinine of Residents by Area
    Yu-Jin Oh, Hyoung-Wook Kim, Yun-Jae Kim, Yoon-Deok Han, Sung-Hyeon Jung, Jong-Dae Lee, Bong-Ki Jang, Jin-Heon Lee, Bu-Soon Son
    Journal of Environmental Science International.2019; 28(3): 329.     CrossRef
Neurobehavioral Performance Test of Workers Exposed to Mixed Organic Solvents.
Chang Yoon Kim, Joon Sakong, Jong Hak Chung, Ree Joo, Man Joong Jeon, Nag Jung Sung, Sang Kyu Kim
Yeungnam Univ J Med. 1997;14(2):314-328.   Published online December 31, 1997
DOI: https://doi.org/10.12701/yujm.1997.14.2.314
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  • 4 Download
  • 2 Crossref
AbstractAbstract PDF
A cross-sectional study was performed to evaluate the effects of chronic exposure to low-dose solvent on neurobehavioral performance of 48 male workers exposed to organic solvents. A control group of 50 workers was selected from same factories. Each worker completed a medical and occupational questionnaire and four tests of Neurobehavioral Core Test Battery. These included Benton visual retention test, digit symbol, digit span, and pursuit aiming. Comparison of mean performance showed a significantly poorer performance on digit symbol, digit span, and pursuit aiming. In univariate analysis, age contributed to poor performance on Benton visual retention test and educational level was found to reduce the performance on symbol digit in both groups. Amount of alcohol intake was found to reduce the performance on digit symbol and smoking appeared to slow pursuit aiming in the exposure group. In multiple regression analysis, controlling for age, educational level, alcohol, and smoking, solvent exposure was found to be associated with performance of digit span, and number of correct dot of pursuit aiming. Age on Benton visual retention, educational level on digit symbol, and smoking on pursuit aiming were found to be a significant factors on each test items. This study suggest that short-term memory, and perception can be affected easily by chronic exposure of organic solvents which air concentration level were under the Threshold Limit Value.

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  • An aggravated return-to-work case of organic solvent induced chronic toxic encephalopathy
    Sangyun Seo, Jungwon Kim
    Annals of Occupational and Environmental Medicine.2018;[Epub]     CrossRef
  • Occupational Psychiatric Disorders in Korea
    Kyeong-Sook Choi, Seong-Kyu Kang
    Journal of Korean Medical Science.2010; 25(Suppl): S87.     CrossRef
Effects of Ethanol on Neurobehavioral Performance.
Man Joong Jeon, Joon Sakong, Pock Soo Kang, Moon Chan Kim, Hak Soo Kim
Yeungnam Univ J Med. 1997;14(1):183-196.   Published online June 30, 1997
DOI: https://doi.org/10.12701/yujm.1997.14.1.183
  • 1,354 View
  • 4 Download
  • 1 Crossref
AbstractAbstract PDF
An experimental study was performed to investigate. The subjects drank 0.5g/kg ethanol and performed 7 items of SPES(simple reaction time, color word stress, digit classification, finger tapping speed, numerical ability, symbol digit coding, memory digit span). 20 students of medical college participated in the study during August, 1996. After ethanol intake, performance of 4 items(simple reaction time, digit classification, finger tapping speed, symbol digit coding) significantly showed to be decreased. The function of perception - response speed and steady movement were found to be more sensitive to ethanol than that of short - term memory, numerical ability and specification of color. No significant association were found between smoking, alcohol drinking, BMI(body mass index) and the effects of ethanol on neurobehavioral performance.

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  • Assessment of Availability of Korean Computerized Neurobehavioral Test in Patients with Brain Injury
    Tae-Hoon Kim, Man-Joong Jeon, Joon Sakong
    The Journal of the Korea Contents Association.2013; 13(6): 339.     CrossRef

JYMS : Journal of Yeungnam Medical Science