OBJECTIVES: To characterize the usage patterns of new types of tobacco products (NTTPs) to develop effective strategies for the regulation of NTTPs in Korea. METHODS: We conducted focus group interviews to identify the NTTP usage patterns of research subjects. The NTTPs were limited to electronic cigarettes (e-cigarettes), waterpipe tobacco, and rolling tobacco. We categorized 30 research subjects into 4 groups. The e-cigarette group was divided into adult and adolescent groups. Each group contained 7-8 subjects. An interview lasting approximately 2 hours was conducted with each group. RESULTS: Ninety percent of NTTP users used an NTTP in combination with conventional cigarettes. Subjects mostly bought NTTPs online, unlike how they bought cigarettes. Additionally, a great deal of information, such as how to use NTTPs and descriptions of NTTP products, was exchanged through online or offline societies. The primary reason why the subjects used NTTPs was that NTTPs offer a greater range of flavors and aromas than cigarettes. Moreover, NTTPs were felt to be less repulsive than cigarettes. NTTPs were not used as a cigarette substitute; rather, they were mostly used in places and situations where traditional cigarette smoking was not allowed. CONCLUSIONS: Based on the results of this study, the government should conduct studies on the effects of the combined use of NTTPs and cigarettes on the human body, obtain and provide accurate data regarding NTTP use, and develop and implement polices to ban NTTP advertising, which may arouse adolescents' curiosity, and the addition of flavoring substances to tobacco products.
Adolescent ; Adult ; Electronic Cigarettes ; Exploratory Behavior ; Focus Groups* ; Human Body ; Humans ; Korea ; Research Subjects ; Smoking ; Tobacco Products* ; Tobacco*

Tobacco products are rapidly evolving. Since the World Health Organization Framework Convention on Tobacco Control came to effect in 2005, the parties of the treaty have been aiming to control tobacco use. Moreover, the social norm of smoking has changed. These changes have prompted the tobacco industry to evolve their products and business model. There have been several evolutions in tobacco products. Firstly, new tobacco products, such as electronic cigarettes and heated tobacco products were introduced into markets that were previously dominated by conventional cigarettes. Thus, smokers are able to select alternative tobacco products. Secondly, new devices for tobacco use, including universal serial bus, smart watch, and car key devices, have been developed and released. These devices are popular among females and youth, who wish to hide their smoking behavior. Thirdly, nicotine, which is used in tobacco products, has also evolved. Typically, ‘free-base nicotine’ has been the main form used in tobacco products, because it helps to deliver nicotine quickly to the smoker's brain. However, a new form of nicotine, ‘nicotine salt’, is used in electronic cigarettes. It can deliver a more highly concentrated dose of nicotine to the smoker’s brain. To regulate these evolving products, laws are required to prevent the easy access of new tobacco products in the Korean market and therefore, a new organization for monitoring the evolution of tobacco products is required. Additionally, we need to encourage young people and scholars to develop interest in tobacco product control, thus ensuring adequate regulation of new tobacco products.

Tobacco products are rapidly evolving. Since the World Health Organization Framework Convention on Tobacco Control came to effect in 2005, the parties of the treaty have been aiming to control tobacco use. Moreover, the social norm of smoking has changed. These changes have prompted the tobacco industry to evolve their products and business model. There have been several evolutions in tobacco products. Firstly, new tobacco products, such as electronic cigarettes and heated tobacco products were introduced into markets that were previously dominated by conventional cigarettes. Thus, smokers are able to select alternative tobacco products. Secondly, new devices for tobacco use, including universal serial bus, smart watch, and car key devices, have been developed and released. These devices are popular among females and youth, who wish to hide their smoking behavior. Thirdly, nicotine, which is used in tobacco products, has also evolved. Typically, ‘free-base nicotine’ has been the main form used in tobacco products, because it helps to deliver nicotine quickly to the smoker's brain. However, a new form of nicotine, ‘nicotine salt’, is used in electronic cigarettes. It can deliver a more highly concentrated dose of nicotine to the smoker’s brain. To regulate these evolving products, laws are required to prevent the easy access of new tobacco products in the Korean market and therefore, a new organization for monitoring the evolution of tobacco products is required. Additionally, we need to encourage young people and scholars to develop interest in tobacco product control, thus ensuring adequate regulation of new tobacco products.
Adolescent ; Brain ; Commerce ; Electronic Cigarettes ; Female ; Hot Temperature ; Humans ; International Cooperation ; Jurisprudence ; Nicotine ; Smoke ; Smoking ; Social Norms ; Tobacco Industry ; Tobacco Products ; Tobacco Use ; Tobacco ; World Health Organization

Tobacco products are rapidly evolving. Since the World Health Organization Framework Convention on Tobacco Control came to effect in 2005, the parties of the treaty have been aiming to control tobacco use. Moreover, the social norm of smoking has changed. These changes have prompted the tobacco industry to evolve their products and business model. There have been several evolutions in tobacco products. Firstly, new tobacco products, such as electronic cigarettes and heated tobacco products were introduced into markets that were previously dominated by conventional cigarettes. Thus, smokers are able to select alternative tobacco products. Secondly, new devices for tobacco use, including universal serial bus, smart watch, and car key devices, have been developed and released. These devices are popular among females and youth, who wish to hide their smoking behavior. Thirdly, nicotine, which is used in tobacco products, has also evolved. Typically, ‘free-base nicotine’ has been the main form used in tobacco products, because it helps to deliver nicotine quickly to the smoker's brain. However, a new form of nicotine, ‘nicotine salt’, is used in electronic cigarettes. It can deliver a more highly concentrated dose of nicotine to the smoker’s brain. To regulate these evolving products, laws are required to prevent the easy access of new tobacco products in the Korean market and therefore, a new organization for monitoring the evolution of tobacco products is required. Additionally, we need to encourage young people and scholars to develop interest in tobacco product control, thus ensuring adequate regulation of new tobacco products.

BACKGROUND: There is a well recognized interlaboratory variation in the results using the polymerase chain reaction(PCR) to detect the IS6110 sequence. The clinical utility of a commercially developed PCR test(Amplicor) in bronchial washings for detecting pulmonary tuberculosis in smear negative patients was evaluated. The sensitivity and specificity of Amplicor was compared with that of an in-house PCR test used for detecting the IS6110 sequence of Mycobacterium tuberculosis(M.tbc) in the bronchial washing fluid. METHODS: 66 patients whose sputum smear for M.tbc were negative or who could not produce any sputum were recruited from January 1999 to July 1999. They all had a bronchoscopy performed to determine if there were signs of hemoptysis, patients who could not cough up sputum, lung lesion that exclude pulmonary tuberculosis. Pulmonary tuberculosis was diagnosed on the basis of a positive culture or a response to anti-tuberculosis therapy. RESULTS: 19 patients with tuberculosis were identified and samples from 16 patients were later confirmed by culture. Bronchial washing for Amplicor PCR revealed a sensitivity, specificity, positive and negative predictive values of 94.7%, 97.9%, 94.7%, 97.9%, respectively. Using IS6110 based PCR, the sensitivity, specificity, positive and negative predictive values were of 73.7%, 87.2%, 70%, 89.1% respectively. CONCLUSION: Bronchial washing for Amplicor PCR proved to be more useful than IS6110 based PCR in rapidly diagnosing smear negative pulmonary pulmoary tuberculosis in patients where tuberculosis was likely to be differential and rapid diagnosis was essential for optimal treatment.
Bronchoscopy ; Cough ; Diagnosis* ; Hemoptysis ; Humans ; Lung ; Mycobacterium ; Polymerase Chain Reaction* ; Sensitivity and Specificity ; Sputum ; Tuberculosis ; Tuberculosis, Pulmonary*

BACKGROUND AND OBJECTIVES: A blood transfusion is almost inevitable in neonatal cardiac surgery. This study aimed to assess the feasibility of using autologous cord blood for a cardiopulmonary bypass (CPB) priming as an alternative to an allo-transfusion in neonatal cardiac surgery. SUBJECTS AND METHODS: From January 2012 to December 2014, cord blood had been collected during delivery after informed consent and was stored immediately into a blood bank. Eight neonatal patients had their own cord blood used for CPB priming during cardiac surgery. RESULTS: All patients underwent surgery for their complex congenital heart disease. The median age and body weight at surgery was 11 days (from 0 to 21 days) and 3.2 kg (from 2.2 to 3.7 kg). The median amount and hematocrit of collected cord blood was 72.5 mL (from 43 to 105 mL) and 48.7% (from 32.0 to 51.2%). The median preoperative hematocrit of neonates was 36.5% (from 31.0 to 45.0%); the median volume of CPB priming was 130 mL (From 120 to 140 mL). Seven out of eight patients did not need an allo-transfusion in CPB priming and only one neonate used 20 mL of packed red blood cells in CPB priming to obtain the target hematocrit. CONCLUSION: Autologous cord blood can be used for CPB priming as alternative to packed red blood cells in neonatal congenital cardiac surgery in order to reduce allo-transfusion.
Blood Banks ; Blood Transfusion ; Body Weight ; Cardiopulmonary Bypass* ; Erythrocytes ; Fetal Blood* ; Heart Defects, Congenital ; Hematocrit ; Humans ; Infant, Newborn ; Informed Consent ; Thoracic Surgery*

The alteration of alternative splicing patterns has an effect on the quantification of functional proteins, leading to phenotype variation. The splicing quantitative trait locus (sQTL) is one of the main genetic elements affecting splicing patterns. Here, we report the results of genome-wide sQTLs across 141 strains of Arabidopsis thaliana with publicly available next generation sequencing datasets. As a result, we found 1,694 candidate sQTLs in Arabidopsis thaliana at a false discovery rate of 0.01. Furthermore, among the candidate sQTLs, we found 25 sQTLs that overlapped with the list of previously examined trait-associated single nucleotide polymorphisms (SNPs). In summary, this sQTL analysis provides new insight into genetic elements affecting alternative splicing patterns in Arabidopsis thaliana and the mechanism of previously reported trait-associated SNPs.
Alternative Splicing ; Arabidopsis* ; Dataset ; Phenotype ; Polymorphism, Single Nucleotide ; Quantitative Trait Loci*

Although the Korean government introduced a tobacco tax increase in 2015 and pictorial health warnings on tobacco packages in 2016, the smoking prevalence among Korean adult men has remained steady. More efforts and effective tobacco control policies are needed to tackle the highest smoking prevalence among the member countries of the Organization for Economic Cooperation and Development. Plain or standardized packaging of tobacco products has been evaluated as an effective tobacco control policy after its introduction in Australia in 2012. The purpose of this study was to raise awareness of the need to introduce plain packaging of tobacco products in Korea. This study presents information on the following topics: what plain packaging of tobacco products is; the purposes of this policy; the reasons why we need to implement this policy in Korea; the scientific evidence regarding the effects of plain packaging of tobacco products; international developments in the plain packaging of tobacco products; and what we need to consider in order to prepare for the implementation of this policy in Korea. We propose that introducing plain packaging of tobacco products would be beneficial for reinforcing tobacco control policies in Korea and would simultaneously contribute to implementing articles 11 and 13 of the Framework Convention on Tobacco Control. Further studies must be carried out to develop a plain or standardized packaging design of tobacco products in Korea and to prevent the tobacco industry from interrupting the introduction of this policy in Korea, based on other countries' experience.
Adult ; Australia ; Humans ; Korea ; Male ; Organisation for Economic Co-Operation and Development ; Prevalence ; Product Packaging ; Smoke ; Smoking ; Taxes ; Tobacco Industry ; Tobacco Products ; Tobacco

Although the Korean government introduced a tobacco tax increase in 2015 and pictorial health warnings on tobacco packages in 2016, the smoking prevalence among Korean adult men has remained steady. More efforts and effective tobacco control policies are needed to tackle the highest smoking prevalence among the member countries of the Organization for Economic Cooperation and Development. Plain or standardized packaging of tobacco products has been evaluated as an effective tobacco control policy after its introduction in Australia in 2012. The purpose of this study was to raise awareness of the need to introduce plain packaging of tobacco products in Korea. This study presents information on the following topics: what plain packaging of tobacco products is; the purposes of this policy; the reasons why we need to implement this policy in Korea; the scientific evidence regarding the effects of plain packaging of tobacco products; international developments in the plain packaging of tobacco products; and what we need to consider in order to prepare for the implementation of this policy in Korea. We propose that introducing plain packaging of tobacco products would be beneficial for reinforcing tobacco control policies in Korea and would simultaneously contribute to implementing articles 11 and 13 of the Framework Convention on Tobacco Control. Further studies must be carried out to develop a plain or standardized packaging design of tobacco products in Korea and to prevent the tobacco industry from interrupting the introduction of this policy in Korea, based on other countries' experience.

Objectives: ：Maltreatment is one of representative risk factor for psychiatric illnesses. While several studies indicate the relationship between physical activity and maltreatment, there was lack of study using objective measurements. This study was conducted to find the biomarkers of physical activity related to maltreatment experiences in healthy adults using wearable device. Methods: ：A total of 60 healthy adults were recruited; 15 subjects reported maltreatment experiences. Physical activity and sleep data were collected using Fitbit for 2 weeks. Child maltreatment experiences were assessed by Adverse Childhood Experiences (ACE). Symptoms were measured using the Insomnia Severity Index (ISI), Morningness-Eveningness Questionnaire (MEQ), Patient Health Questionnaire-9 (PHQ-9), and Generalized Anxiety Disorder-7 (GAD-7). Results: ：The child maltreatment group showed lower movement distance (p=0.025) and number of walks (p=0.010) compared to the control group. After controlling for anxiety and depressive symptoms in women, maltreatment group represented significant reduction in light activities (p=0.021) as well as movement distance (p=0.024) and number of walks (p=0.011). There was no significant difference in sleep variables between the two groups. Conclusions ：Even in healthy participants, maltreatment experiences can negatively affect daily light physical activity.