1.Major concerns regarding food services based on news media reports during the COVID-19 outbreak using the topic modeling approach
Hyejin YOON ; Taejin KIM ; Chang-Sik KIM ; Namgyu KIM
Nutrition Research and Practice 2021;15(S1):S110-121
BACKGROUND/OBJECTIVES:
Coronavirus disease 2019 (COVID-19) cases were first reported in December 2019, in China, and an increasing number of cases have since been detected all over the world. The purpose of this study was to collect significant news media reports on food services during the COVID-19 crisis and identify public communication and significant concerns regarding COVID-19 for suggesting future directions for the food industry and services.
SUBJECTS/METHODS:
News articles pertaining to food services were extracted from the home pages of major news media websites such as BBC, CNN, and Fox News between March 2020 and February 2021. The retrieved data was sorted and analyzed using Python software.
RESULTS:
The results of text analytics were presented in the format of the topic label and category for individual topics. The food and health category presented the effects of the COVID-19 pandemic on food and health, such as an increase in delivery services. The policy category was indicative of a change in government policy. The lifestyle change category addressed topics such as an increase in social media usage.
CONCLUSIONS
This study is the first to analyze major news media (i.e., BBC, CNN, and Fox News) data related to food services in the context of the COVID-19 pandemic. Text analytics research on the food services domain revealed different categories such as food and health, policy, and lifestyle change. Therefore, this study contributes to the body of knowledge on food services research, through the use of text analytics to elicit findings from media sources.
2.Vitrification, in vitro fertilization, and development of Atg7 deficient mouse oocytes.
Soyoung BANG ; Geun Kyung LEE ; Hyejin SHIN ; Chang Suk SUH ; Hyunjung Jade LIM
Clinical and Experimental Reproductive Medicine 2016;43(1):9-14
OBJECTIVE: Autophagy contributes to the clearance and recycling of macromolecules and organelles in response to stress. We previously reported that vitrified mouse oocytes show acute increases in autophagy during warming. Herein, we investigate the potential role of Atg7 in oocyte vitrification by using an oocyte-specific deletion model of the Atg7 gene, a crucial upstream gene in the autophagic pathway. METHODS: Oocyte-specific Atg7 deficient mice were generated by crossing Atg7 floxed mice and Zp3-Cre transgenic mice. The oocytes were vitrified-warmed and then subjected to in vitro fertilization and development. The rates of survival, fertilization, and development were assessed in the Atg7 deficient oocytes in comparison with the wildtype oocytes. Light chain 3 (LC3) immunofluorescence staining was performed to determine whether this method effectively evaluates the autophagy status of oocytes. RESULTS: The survival rate of vitrified-warmed Atg7(f/f);Zp3-Cre (Atg7(d/d)) metaphase II (MII) oocytes was not significantly different from that of the wildtype (Atg7(f/f)) oocytes. Fertilization and development in the Atg7(d/d) oocytes were significantly lower than the Atg7(f/f) oocytes, comparable to the Atg5d/d oocytes previously described. Notably, the developmental rate improved slightly in vitrified-warmed Atg7(d/d) MII oocytes when compared to fresh Atg7(d/d) oocytes. LC3 immunofluorescence staining showed that this method can be reliably used to assess autophagic activation in oocytes. CONCLUSION: We confirmed that the LC3-positive signal is nearly absent in Atg7(d/d) oocytes. While autophagy is induced during the warming process after vitrification of MII oocytes, the Atg7 gene is not essential for survival of vitrified-warmed oocytes. Thus, induction of autophagy during warming of vitrified MII oocytes seems to be a natural response to manage cold or other cellular stresses.
Animals
;
Autophagy
;
Fertilization
;
Fertilization in Vitro*
;
Fluorescent Antibody Technique
;
Genes, vif
;
Metaphase
;
Mice*
;
Mice, Transgenic
;
Oocytes*
;
Organelles
;
Recycling
;
Survival Rate
;
Vitrification*
3.A Case of Concomitant Inv(3)(q21q26) and Cryptic BCR/ABL1 Rearrangement in the Blast Crisis of Chronic Myeloid Leukemia.
Hyejin LEE ; Chihyun CHO ; Min Jung KWON ; Myung Hyun NAM ; Chang Kyu LEE ; Young Kee KIM
Laboratory Medicine Online 2011;1(3):163-167
Structural abnormalities of the long arm of chromosome 3 (3q) have been associated with elevated platelet count and hyperplasia of megakaryocytes with dysplasia in various hematological malignancies. Some cases of chronic myeloid leukemia (CML) may acquire inv(3) (q21q26) or t(3;3)(q21;q26), and such a finding usually indicates accelerated or blast phase of their disease. We report a case of concomitant inv(3) (q21q26) and cryptic BCR/ABL1 rearrangement in the blast crisis of CML. The patient was 17-year-old male and showed marked leukocytosis and thrombocytosis at admission. Leukocyte differentials showed eosinophilia, basophilia and increased blasts. The bone marrow was hypercellular with granulocytic hyperplasia, and dysmorphic megakaryocytes were frequently observed. Conventional cytogenetic analysis revealed only an inv(3)(q21q26) and no Philadelphia chromosome was observed. FISH and RT-PCR analyses confirmed cryptic BCR/ABL1 rearrangement. The patient responded poorly with imatinib and induction chemotherapy, and expired during the course of 2nd chemotherapy with increased dose of imatinib.
Adolescent
;
Arm
;
Benzamides
;
Blast Crisis
;
Bone Marrow
;
Chromosomes, Human, Pair 3
;
Cytogenetic Analysis
;
Eosinophilia
;
Hematologic Neoplasms
;
Humans
;
Hyperplasia
;
Induction Chemotherapy
;
Leukemia, Myelogenous, Chronic, BCR-ABL Positive
;
Leukocytes
;
Leukocytosis
;
Male
;
Megakaryocytes
;
Philadelphia Chromosome
;
Piperazines
;
Platelet Count
;
Pyrimidines
;
Thrombocytosis
;
Imatinib Mesylate
4.The Optimal Pulse Oxygen Saturation in Very Low Birth Weight or Very Preterm Infants.
Sunyoung YOU ; Hyejin KANG ; Minjung KIM ; Mea Young CHANG
Journal of the Korean Society of Neonatology 2011;18(2):320-327
PURPOSE: To determine the effect of changing practice guidelines designed to avoid hyperoxia or hypoxia in very low birth weight or very preterm infants. METHODS: We analyzed a database of <1,500 g birth weight or <32 weeks of gestation infants who were born and admitted to the neonatal intensive care unit of Chungnam National University Hospital from January 2007 to July 2010. First, we defined the relationship between arterial partial pressure of oxygen (PaO2) and pulse oxygen saturation (SpO2). When we evaluated 96 pairs of PaO2 and SpO2 measurements, oxygen saturation was 90-94% at a PaO2 of 43-79 mmHg on the oxyhemoglobin dissociation curve, according to pulse oximetry. Based on this observation, a change in practice was instituted in August 2008 with the objective of avoiding hypoxia and hyperoxia in preterm infants with targeting a SpO2 90-94% (period II). Before the change in practice, high alarms for SpO2 were set at 100% and low alarms at 95% (period I). RESULTS: Sixty-eight infants the met enrollment criteria and 38 (56%) were born during period II, after the change in SpO2 targets. Demographic characteristics, except gender, were similar between the infants born in both periods. After correcting for the effect of confounding factors, the rates for mortality, severe retinopathy of prematurity, and IVH attended to be lower than those for infants in period II. No difference in the rate of patent ductus arteriosus needed to treat was observed. CONCLUSION: A change in the practice guidelines aimed at avoiding low oxygen saturation and hyperoxia did not increase neonatal complication rates and showed promising results, suggesting decreased mortality and improvements in short term morbidity. It is still unclear what range of oxygen saturation is appropriate for very preterm infants but the more careful saturation targeting guideline should be considered to prevent hypoxemic events and hyperoxia.
Anoxia
;
Birth Weight
;
Blood Gas Analysis
;
Dissociative Disorders
;
Ductus Arteriosus, Patent
;
Humans
;
Hyperoxia
;
Infant
;
Infant, Newborn
;
Infant, Premature
;
Infant, Very Low Birth Weight
;
Intensive Care, Neonatal
;
Oximetry
;
Oxygen
;
Oxyhemoglobins
;
Partial Pressure
;
Pregnancy
;
Retinopathy of Prematurity
5.Generation and characterization of integration-free induced pluripotent stem cells from patients with autoimmune disease.
Mi Young SON ; Mi Ok LEE ; Hyejin JEON ; Binna SEOL ; Jung Hwa KIM ; Jae Suk CHANG ; Yee Sook CHO
Experimental & Molecular Medicine 2016;48(5):e232-
Autoimmune diseases (AIDs), a heterogeneous group of immune-mediated disorders, are a major and growing health problem. Although AIDs are currently treated primarily with anti-inflammatory and immunosuppressive drugs, the use of stem cell transplantation in patients with AIDs is becoming increasingly common. However, stem cell transplantation therapy has limitations, including a shortage of available stem cells and immune rejection of cells from nonautologous sources. Induced pluripotent stem cell (iPSC) technology, which allows the generation of patient-specific pluripotent stem cells, could offer an alternative source for clinical applications of stem cell therapies in AID patients. We used nonintegrating oriP/EBNA-1-based episomal vectors to reprogram dermal fibroblasts from patients with AIDs such as ankylosing spondylitis (AS), Sjögren's syndrome (SS) and systemic lupus erythematosus (SLE). The pluripotency and multilineage differentiation capacity of each patient-specific iPSC line was validated. The safety of these iPSCs for use in stem cell transplantation is indicated by the fact that all AID-specific iPSCs are integrated transgene free. Finally, all AID-specific iPSCs derived in this study could be differentiated into cells of hematopoietic and mesenchymal lineages in vitro as shown by flow cytometric analysis and induction of terminal differentiation potential. Our results demonstrate the successful generation of integration-free iPSCs from patients with AS, SS and SLE. These findings support the possibility of using iPSC technology in autologous and allogeneic cell replacement therapy for various AIDs, including AS, SS and SLE.
Autoimmune Diseases*
;
Fibroblasts
;
Humans
;
In Vitro Techniques
;
Induced Pluripotent Stem Cells*
;
Lupus Erythematosus, Systemic
;
Pluripotent Stem Cells
;
Spondylitis, Ankylosing
;
Stem Cell Transplantation
;
Stem Cells
;
Transgenes
6.Meal skipping habits and nutritional status among Ghanaian students living in Korea.
Monica E DZATSE ; Eun Kyung KIM ; Hyesook KIM ; Hyejin KIM ; Aswathy VIJAYAKUMAR ; Namsoo CHANG
Journal of Nutrition and Health 2017;50(4):376-382
PURPOSE: The consistent rise in the number of foreign students in Korea demands an accurate and detailed investigation into their dietary practices and nutritional status. For these international students, assimilation into new cultures can be stressful. The influence this process may have on dietary behaviors as well as overall health cannot be overlooked. METHODS: The researchers in this study sought to investigate the nutritional status and dietary practices of Ghanaian students studying in Korea. A total of 81 Ghanaian male students with an average age of 29.4 ± 4.0 years were sampled between May and June 2016. Investigations were carried out on the general characteristics of the participants, their daily food and nutrient intakes using a 24-h dietary recall method, meal skipping practices, and the nutritional quality of their diets based on their meal skipping habits. RESULTS: The study revealed that the daily nutrient intake of subjects did not fully meet the daily recommended nutrient intake (RNI) established by Ghanaian Ministry of Health and the World Health Organization (WHO) and Food and Agriculture Organization (FAO), particularly for energy, calcium, iron, zinc, and vitamin B2 requirements. The Nutrient Adequacy Ratio (NAR) for calcium was very low, posing a deficiency risk to the participants. Meal skipping practices among participants changed significantly after arriving in Korea. The study also compared the diet quality indicators (Nutrient Adequacy Ratio and Mean Adequacy Ratio) of those who skipped meals ≥ 7 times/week with those who skipped meals < 7 times/week. Participants who skipped meals ≥ 7 times/week were shown to have lower dietary intakes of vitamins B1 and B2 than those who skipped meals < 7 times/week. CONCLUSION: Ultimately, the study found that meal skipping among Ghanaian students was common, and their daily nutrient intakes did not meet the set dietary standards. Those who skipped meals ≥ 7 times/week had lower dietary intakes of vitamins B1 and B2 than those who skipped meals < 7 times/week. Based on our study findings, we recommend that nutrition education should be organized for the Ghanaian student community in Korea using our results as a template to draw up a nutrition program that is culturally appropriate.
Agriculture
;
Calcium
;
Diet
;
Education
;
Humans
;
Iron
;
Korea*
;
Male
;
Meals*
;
Methods
;
Nutritional Status*
;
Nutritive Value
;
Riboflavin
;
Vitamins
;
World Health Organization
;
Zinc
7.Health Inequities in Cancer Incidence According to Economic Status and Regions Are Still Existed Even under Universal Health Coverage System in Korea: A Nationwide Population Based Study Using the National Health Insurance Database
Youngs CHANG ; Soo-Hee HWANG ; Sang-A CHO ; Hyejin LEE ; Eunbyul CHO ; Jin Yong LEE
Cancer Research and Treatment 2024;56(2):380-403
Purpose:
The purpose of this study is to determine the level of health equity in relation to cancer incidence.
Materials and Methods:
We used the National Health Insurance claims data of the National Health Insurance Service between 2005 and 2022 and annual health insurance and medical aid beneficiaries between 2011 and 2021 to investigate the disparities of cancer incidence. We calculated age-sex standardized cancer incidence rates by cancer and year according to the type of insurance and the trend over time using the annual percentage change. We also compared the hospital type of the first diagnosis by cancer type and year and cancer incidence rates by cancer type and region in 2021 according to the type of insurance.
Results:
The total cancer incidence increased from 255,971 in 2011 to 325,772 cases in 2021. The absolute difference of total cancer incidence rate between the NHI beneficiaries and the medical aid (MA) recipients increased from 510.1 cases per 100,000 population to 536.9 cases per 100,000 population. The odds ratio of total cancer incidence for the MA recipients increased from 1.79 (95% confidence interval [CI], 1.77 to 1.82) to 1.90 (95% CI, 1.88 to 1.93). Disparities in access to hospitals and regional cancer incidence were profound.
Conclusion
This study examined health inequities in relation to cancer incidence over the last decade. Cancer incidence was higher in the MA recipients, and the gap was widening. We also found that regional differences in cancer incidence still exist and are getting worse. Investigating these disparities between the NHI beneficiaries and the MA recipients is crucial for implementing of public health policies to reduce health inequities.
8.A case of myeloid neoplasm with the PDGFRB rearrangement and eosinophilia.
Sang Eon JANG ; Hye Jin KANG ; Yoon Hwan CHANG ; Dong Soon LEE ; Hyeon Tae KIM ; Kyung Won KOH ; Sung Hyun YANG
Korean Journal of Medicine 2010;78(3):386-390
Myeloid neoplasm with the platelet-derived growth factor receptor beta (PDGFRB) rearrangement is a myeloproliferative neoplasm. Patients with this disease often have prominent eosinophilia or monocytosis and the presence of t(5;12)(q31~33;p12) or a variant translocation with expression of an ETV6-PDGFRB fusion gene or the PDGFRB rearrangement. We report an 82-year-old woman with a myeloid neoplasm, with the PDGFRB rearrangement, who presented with a dry cough, eosinophilia and thrombocytosis. The chromosome study of the bone marrow showed 46,XX,ins(1;5)(q22;q33q13.3), and fluorescence in situ hybridization (FISH) analysis revealed rearrangement of the PDGFRB gene. The patient was successfully treated with low-dose imatinib.
Aged, 80 and over
;
Benzamides
;
Bone Marrow
;
Cough
;
Eosinophilia
;
Female
;
Fluorescence
;
Humans
;
In Situ Hybridization
;
Piperazines
;
Pyrimidines
;
Receptor, Platelet-Derived Growth Factor beta
;
Receptors, Platelet-Derived Growth Factor
;
Thrombocytosis
;
Imatinib Mesylate
9.The presence of sharp-edged weapon related cut mark in Joseon skull discovered at the 16th century market district of Old Seoul City ruins in South Korea.
Hyejin LEE ; Chang Seok OH ; Jong Ha HONG ; Jeongsoo KIM ; Leehyeon HAN ; Jung Min PARK ; Dong Hoon SHIN
Anatomy & Cell Biology 2017;50(4):306-309
A human skull was discovered at the 16th-century drainage channel of market district ruins, one of the busiest streets in the capital of Joseon kingdom. By anthropological examination, we noticed the cut mark at the right occipital part of the cranium. Judging from the wound property, it might have been caused by a strong strike using a sharp-edged weapon. As no periosteal reaction or healing signs were observed at the cut mark, he might have died shortly after the skull wound was made. We speculated that this might have been of a civilian or soldier victim who died in a battle or the decapitated head of prisoner. This is the first report about the discovery of the skull damaged by sharp-edged weapon at the archaeological sites in the capital city of Joseon Kingdom.
Drainage
;
Head
;
Humans
;
Korea*
;
Military Personnel
;
Prisoners
;
Prisons
;
Seoul*
;
Skull*
;
Strikes, Employee
;
Weapons*
;
Wounds and Injuries
10.Epidemiologic Features of Parainfluenza Virus Type 1, 2 and 3 Infection in Seoul and a Neighboring Area, 2008-2011.
Hyejin LEE ; Chang Kyu LEE ; Myung Hyun NAM ; Kyoung Ho ROH ; Soo Young YOON ; Chae Seung LIM ; Yunjung CHO ; Young Kee KIM ; Kap No LEE ; Young YOO
Korean Journal of Clinical Microbiology 2012;15(2):54-59
BACKGROUND: Parainfluenza virus (PIV) is a significant cause of acute respiratory infections. Epidemiological information on PIV infection could be very helpful for patient management. The aim of this study was to investigate the epidemiology of PIV infection in Seoul and a neighboring area with regard to PIV type. METHODS: The diagnosis of PIV infection was made by virus isolation. The R-mix Too cell system (Diagnostic Hybrids, Inc., Athens, OH, USA) and D3 Ultra DFA Respiratory Virus Screening & ID kits (Diagnostic Hybrids, Inc.) were used for virus culture and identification. The medical records of patients with positive virus cultures were reviewed retrospectively. RESULTS: Seven hundred and ten PIV viruses (5.6%) were isolated from 12,723 specimens. The number of subjects with PIV type III, I and II was 357, 304 and 49, respectively. PIV infection showed a peak incidence in the first year of life regardless of subtypes. The most common diagnosis among all PIV subtypes was pneumonia. Lower respiratory tract infections constituted the majority (76.3%) of PIV infections. The most common diagnosis of PIV type I and II was croup and that of PIV type III was pneumonia. A difference in seasonal variation between subtypes was observed. PIV I (62.2%) was mainly isolated from July to September while PIV type III (86.8%) was isolated from April to July. CONCLUSION: Lower respiratory infection was most commonly found in hospitalized patients with PIV infection. Clinical features of PIV infection were similar those seen in Western PIV reports, with the exception of the seasonal outbreak pattern.
Chimera
;
Croup
;
Humans
;
Incidence
;
Mass Screening
;
Medical Records
;
Parainfluenza Virus 1, Human
;
Paramyxoviridae Infections
;
Pneumonia
;
Respiratory Tract Infections
;
Seasons
;
Viruses