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석면함유 슬레이트 지붕 물받이 퇴적물 중 석면 섬유 함유율
임지현,한솔민,김현석,신유민,박시은,허정윤,김민영,장봉기 순천향대학교 기초과학연구소 2022 순천향자연과학연구 논문집 Vol.28 No.1,2
This study attempted to determine the degree of asbestos release from the aging slate roof by comparing the asbestos content in the slate roof rain gutter with a colored steel plate (tin plate) over the slate roof. Four slate roof houses located in Haengmok-ri, Asan-si, Chungcheongnam-do, and one house constructed with a colored steel plate on the slate roof were selected to collect the sediment of the roof rain gutter. The asbestos fiber content was calculated by a point counting method using a polarization microscope after pretreatment with conversion treatment and hydrochloric acid treatment. The average asbestos content of the four slate roof rain gutter were 1.89%. However, asbestos was not detected in the Slate covering roof rain gutter, which were constructed on the slate roof. Asbestos fiber content was the highest at 2.89% in the slate roof rain gutter installed in 1976, followed by 2.44% in 1953. From the above results, it is necessary to minimize secondary damage as asbestos fibers released from slate roof houses to the surrounding atmosphere or leaked from slate roofs as rainwater may cause soil pollution and seriously affect residents' health. Although covering with colored steel plates (tin plates) has been shown to prevent the leakage of asbestos fibers to some extent, it is believed that a policy alternative to remove the slate roof as soon as possible is needed to solve the fundamental problem.
Activated Leukocyte Cell Adhesion Molecule Stimulates the T-Cell Response in Allergic Asthma
Kim, Mi Na,Hong, Jung Yeon,Shim, Doo Hee,Sol, In Suk,Kim, Yun Seon,Lee, Ji Hyun,Kim, Kyung Won,Lee, Jae Myun,Sohn, Myung Hyun American Thoracic Society 2018 American journal of respiratory and critical care Vol.197 No.8
<P>Conclusions: ALCAM contributes to OVA-induced allergic asthma by stimulating T-cell activation and proliferation, suggesting it as a potential therapeutic target for allergic asthma.</P>
( Sol Ji Yoon ),( Hee Won Jung ),( Sun Wook Kim ),( Jung Yeon Choi ),( Kwang Il Kim ),( Cheol Ho Kim ) 대한내과학회 2014 대한내과학회 추계학술발표논문집 Vol.2014 No.1
Introduction: Increased short-term blood pressure variability (BPV) has been known to be related with target organ damages independent of blood pressure (BP) level. However, the effect of age on the relationship between BPV and left ventricular hypertrophy (LVH) has not been evaluated. We aimed to investigate the relationships between age, BPV, and LVH in a cross sectional study. Methods: Among the 3, 762 participants of the Korean ambulatory BP (KOR-ABP) registry, we assessed the data of 1, 606 (42. 7%) participants who had the record of echocardiography. As an index for 24-hour BPV, the average real variability (ARV) of systolic and diastolic BP was analyzed. We used left ventricular mass index (LVMI, LV mass divided by body surface area) as an index for LVH (LVH; > 95 g/m2 in women, > 115 g/m2 in men). Results: Mean age was 57. 2 (SD 14. 2) years, 857 (53. 4%) were men, and 953 (59. 3%) had hypertension (BP >140/90 mmHg or taking antihypertensive medications). Age was not associated with 24-hour average systolic BP (B=0. 037, P=0. 211), but associated with 24-hour average diastolic BP (B=-0. 18, P<0. 001) by linear regression analysis. However, age was associated with both 24-hour ARV of systolic (B=0. 06, P<0. 001) and diastolic (B=0. 03, P=0. 014) BP. There were signifi cant relationships of age and BPV on the presence of LVH, thus the older participants with increased BPV showed higher risk of having LVH. (figure) Conclusion: In KOR-ABP registry, age was associated with short-term BPV. Furthermore, there exist significant interactive effects of age and BPV on left ventricular hypertrophy.
Prescription Patterns and Burden of Pediatric Asthma in Korea
Sol, In Suk,Kim, Yoon Hee,Kim, Soo Yeon,Choi, Sun Ha,Kim, Jong Deok,Kim, Bo Ok,Moon, Ji Eun,Kim, Kyung Won,Sohn, Myung Hyun The Korean Academy of Asthma, Allergy and Clinical 2019 Allergy, Asthma & Immunology Research Vol.11 No.2
<P><B>Purpose</B></P><P>This study aimed to estimate the prevalence, prescription pattern and burden of pediatric asthma in Korea by analyzing the National Health Insurance (NHI) claims data.</P><P><B>Methods</B></P><P>We retrospectively analyzed the insurance claim records from the Korean NHI claims database from January 2010 to December 2014. Asthmatic patients were defined as children younger than 18 years, with appropriate 10th Revision of the International Classification of Diseases codes (J45 or J46) and a prescription for 1 or more asthma maintenance medications at the same date. Hospitalization and emergency department visits for asthma were defined as use of short-acting beta<SUB>2</SUB>-agonists during hospital visits among asthmatic patients.</P><P><B>Results</B></P><P>There were 1,172,807 asthmatic children in 2010, which increased steadily to 1,590,228 in 2014 in Korea. The prevalence showed an increasing trend annually for all ages. The mean prevalence by age in those older than 2 years decreased during the study period (from 39.4% in the 2–3 year age group to 2.6% in the 15–18 year age group). In an outpatient prescription, leukotriene receptor antagonists were the most commonly prescribed medication for all ages. Patients older than 6 years for whom inhaled corticosteroids were prescribed comprised less than 15% of asthmatic patients. The total direct medical cost for asthma between 2010 and 2014 ranged from $376 to $483 million. Asthma-related medical cost per person reached its peak in $366 in 2011 and decreased to $275 in 2014.</P><P><B>Conclusions</B></P><P>The prevalence of pediatric asthma increased annually and decreased with age. Individual cost of asthma showed a decreasing trend in Korean children.</P>