1.Comparing the efficacy of combined versus single immune cell adaptive therapy targeting colorectal cancer
Denis Nchang CHE ; NaHye LEE ; Hyo-Jung LEE ; Yea-Won KIM ; Solongo BATTULGA ; Ha Na LEE ; Won-Kook HAM ; Hyunah LEE ; Mi Young LEE ; Dawoon KIM ; Haengji KANG ; Subin YUN ; Jinju PARK ; Daeyoun David WON ; Jong Kyun LEE
Annals of Coloproctology 2024;40(2):121-135
Purpose:
Colorectal cancer (CRC) is the most frequent cancer with limited therapeutic achievements. Recently, adoptive cellular immunotherapy has been developed as an antitumor therapy. However, its efficacy has not been tested in CRC. This study investigated the ability of an immune cell cocktail of dendritic cells (DCs), T cells, and natural killer (NK) cells to overcome immunological hurdles and improve the therapeutic efficacy of cell therapy for CRC.
Methods:
CRC lysate-pulsed monocyte-derived DCs (Mo-DCs), CRC antigen-specifically expanded T cells (CTL), and in vitro-expanded NK cells were cultured from patient peripheral blood mononuclear cells (PBMC). The ability of the combined immune cells to kill autologous tumor cells was investigated by co-culturing the combined immune cells with patient-derived tumor cells.
Results:
The Mo-DCs produced expressed T cell co-stimulating molecules like CD80, CD86, human leukocyte antigen (HLA)-DR and HLA-ABC, at high levels and were capable of activating naive T cells. The expanded T cells were predominantly CD8 T cells with high levels of CD8 effector memory cells and low levels of regulatory T cells. The NK cells expressed high levels of activating receptors and were capable of killing other cancer cell lines (K562 and HT29). The immune cell cocktail demonstrated a higher ability to kill autologous tumor cells than single types. An in vivo preclinical study confirmed the safety of the combined immune cell adaptive therapy showing no therapy-related death or general toxicity symptoms.
Conclusion
The results suggested that combined immune cell adaptive therapy could overcome the limited efficacy of cell immunotherapy.
2.Evaluation of fracture strength and translucency of 3D printing resin crown for carious primary anterior tooth
Young-Jun HAM ; Joon-Haeng LEE ; Jong-Su KIM ; Jong-Bin KIM ; Mi-Ran HAN ; Ji-Sun SHIN
Journal of Korean Academy of Oral Health 2023;47(1):40-46
Objectives:
The purpose of this study was to compare the fracture strength and traslucency of 3D printing resin crowns according to different thicknesses.
Methods:
Resin crowns were designed with CAD software and a 3D scanner, using scanned data of the #61 tooth model. Resin Crowns with different thicknesses were printed using a 3D printer, and subsequently divided into four groups according to thickness (0.3, 0.5, 0.7, and 1.0 mm). Fracture strength was compared among groups with a resin strip crown of 1.0 mm thickness. Compressive force was applied using a universal testing machine at 30° along the lingual surface at 1 mm/min cross head speed. For translucency evaluation, thin square specimens were printed of thicknesses 0.3, 0.5, 0.7, and 1.0 mm, and translucency was measured using a spectrophotometer.
Results:
As a result of fracture strength measurement, fracture strength increased as thickness increased, and a significant difference was observed solely between thicknesses of 0.3 and 0.5 mm, and the thicknesses of 0.3 and 0.5 mm (P<0.05). Translucency decreased as thickness increased, and similarly, a significant difference was observed only between thicknesses of 0.3 and 0.5 mm and the thicknesses of 0.7 and 1.0 mm (P<0.05).
Conclusions
A 3D printing resin crown can be used as a clinical option for restoring a primary anterior tooth affected by caries.
3.Inverse association of improved adherence to dietary guidelines with metabolic syndrome: the Seoul Metabolic Syndrome Management program
Dongwoo HAM ; YoungYun CHO ; Mi-Suk PARK ; Yun-Sug PARK ; Sun-Young KIM ; Hye-Min SEOL ; Yoo Mi PARK ; Sunok WOO ; Hyojee JOUNG ; Do-Sun LIM
Nutrition Research and Practice 2020;14(6):621-636
BACKGROUND/OBJECTIVES:
The Seoul Metabolic Syndrome Management (SMESY) program is a 1-yr lifestyle modification program targeting metabolic syndrome (MetS) in Seoul residents. This study investigated the associations between adherence to dietary guidelines and MetS among the SMESY program participants.
SUBJECTS/METHODS:
Data of 54,385 participants aged 20–64 yrs who completed the SMESY program in 2015, had information on adherence to dietary guidelines, and were not medicated for diabetes, hypertension, or dyslipidemia were analyzed. Participants underwent MetS screening and completed a lifestyle questionnaire including adherence to 10 dietary guidelines before and after participation. Participants were classified according to the number of MetS risk factors at baseline (MetS group, ≥ 3; risk group, 1–2; healthy group, none). Adherence to dietary guidelines was determined from the number of “yes” responses regarding the fulfillment of each guideline on ≥ 5 days/week. Multiple logistic regression was used to evaluate associations between newly diagnosed MetS and changes in adherence to dietary guidelines.
RESULTS:
In the MetS group, MetS prevalence decreased after the SMESY program (men, −41.9%p; women, −48.7%p), and all risk factors were significantly improved (P < 0.0001). All groups exhibited improved adherence to all dietary guidelines after participation (P < 0.0001). In the MetS group with positively changed adherence scores, the MetS prevalence decreased by −44.1%p for men and −49.5%p for women, whereas the prevalence in those with negative changes decreased by −38.1%p for men and −48.6%p for women. In the risk group, those with positively changed adherence scores had significantly decreased odds ratios (ORs) for newly diagnosed MetS compared with those with negative changes (OR, 0.70; 95% confidence interval [CI], 0.61–0.80 for men; OR, 0.88; 95% CI, 0.79–0.99 for women).
CONCLUSIONS
The SMESY program may effectively reduce the risk of MetS among adults with risk factors by improving adherence to dietary guidelines.
4.Pain Passport as a tool to improve analgesic use in children with suspected fractures in emergency departments
Soyun HWANG ; Yoo Jin CHOI ; Jae Yun JUNG ; Yeongho CHOI ; Eun Mi HAM ; Joong Wan PARK ; Hyuksool KWON ; Do Kyun KIM ; Young Ho KWAK
The Korean Journal of Pain 2020;33(4):386-394
Background:
In the emergency department (ED), adequate pain control is essential for managing patients; however, children with pain are known to receive less analgesia than adults with pain. We introduce the Pain Passport to improve pain management in paediatric patients with suspected fractures in the ED.
Methods:
This was a before-and-after study. We reviewed the medical records of paediatric patients who were primarily diagnosed with fractures from May to August 2015. After the introduction of the Pain Passport, eligible children were enrolled from May to August 2016. Demographics, analgesic administration rates, time intervals between ED arrival and analgesic administration, and satisfaction scores were obtained. We compared the analgesic prescription rate between the two periods using multiple logistic regression.
Results:
A total of 58 patients were analysed. The baseline characteristics of subjects during the two periods were not significantly different. Before the introduction of the Pain Passport, 9 children (31.0%) were given analgesics, while after the introduction of the Pain Passport, a significantly higher percentage of patients (24/29, 82.8%) were treated with analgesics (P < 0.001). The median administration times were 112 (interquartile range [IQR], 64-150) minutes in the pre-intervention period and 24 (IQR, 20-74) minutes in the post-intervention period. The median satisfaction score for the post-intervention period was 4 (IQR, 3-5). The adjusted odds ratio for providing analgesics in the post-intervention period was 25.91 (95% confidence interval, 4.36-154.02).
Conclusions
Patient-centred pain scoring with the Pain Passport improved pain management in patients with suspected fractures in the paediatric ED.
5.Susceptibility of the Index Urinary Tract Infection to Prophylactic Antibiotics Is a Predictive Factor of Breakthrough Urinary Tract Infection in Children with Primary Vesicoureteral Reflux Receiving Continuous Antibiotic Prophylaxis
Jun Nyung LEE ; Kyeong Hyeon BYEON ; Myeong Jin WOO ; Hee Sun BAEK ; Min Hyun CHO ; Shin Young JEONG ; So Mi LEE ; Ji Yeon HAM ; Yun Sok HA ; Hyun Tae KIM ; Eun Sang YOO ; Tae Gyun KWON ; Sung Kwang CHUNG
Journal of Korean Medical Science 2019;34(21):e156-
BACKGROUND: Few studies have reported on breakthrough urinary tract infection (UTI) associated with the susceptibility of index UTI to prophylactic antibiotics in children with primary vesicoureteral reflux (VUR) receiving continuous antibiotic prophylaxis (CAP). We assessed the impact of the susceptibility of index UTI to prophylactic antibiotics in breakthrough UTIs in children with primary VUR receiving CAP. METHODS: We retrospectively reviewed the medical records of 81 children with primary VUR who were diagnosed after febrile or symptomatic UTI and subsequently received trimethoprim-sulfamethoxazole (TMP-SMX) as CAP between January 2010 and December 2013. We allocated children to a susceptible group or a resistant group based on the susceptibility of index UTI to TMP-SMX. We evaluated patient demographics and clinical outcomes after CAP according to the susceptibility of index UTI to TMP-SMX. Multivariate analysis was used to identify the predictive factors for breakthrough UTI. RESULTS: Of the 81 children, 42 were classified into the susceptible group and 39 into the resistant group. The proportion of breakthrough UTI was 31.0% (13/42) in the susceptible group and 53.8% (21/39) in the resistant group (P = 0.037). Progression of renal scarring was observed in 0% of children in the susceptible group and 15% in the resistant group (P = 0.053). Multivariate analysis showed that TMP-SMX resistance and initial renal scarring were significant predictors of breakthrough UTI. CONCLUSION: Susceptibility of index UTI to prophylactic antibiotics is a risk factor of breakthrough UTI and is associated with poor clinical outcomes in children with primary VUR receiving CAP.
Anti-Bacterial Agents
;
Antibiotic Prophylaxis
;
Child
;
Cicatrix
;
Demography
;
Humans
;
Medical Records
;
Multivariate Analysis
;
Retrospective Studies
;
Risk Factors
;
Trimethoprim, Sulfamethoxazole Drug Combination
;
Urinary Tract Infections
;
Urinary Tract
;
Vesico-Ureteral Reflux
6.Incidence and Risk Factors of Recurrent Falls in the Elderly Visiting the Emergency Department after a Fall
Ri Na JEONG ; Ja Hyun HO ; Youn Yong CHUNG ; Ki Hyun PARK ; Jung A KIM ; Moo Young KIM ; Eun Mi HAM
Korean Journal of Family Practice 2019;9(6):554-559
BACKGROUND: Several studies have evaluated risk factors for falls; however, the risk factors for recurrent falls are poorly understood. Therefore, this study evaluated the prevalence and factors associated with recurrent falls.METHODS: This study included 250 patients aged over 65 years, all of whom visited the emergency department (ED) at Seoul Medical Center following a fall from January 2016 to December 2017. We reviewed the patients' medical records for demographic data and medical history. Previous fall history, use of gait-aids, residence type, and fall recurrence were assessed via individual telephone calls.RESULTS: During the follow-up period, 21.6% (n=54) of the 250 subjects experienced recurrent falls. Logistic regression analyses showed that fall recurrence was significantly associated with a previous fall history and the residence type. Subjects who lived in basement-level residences had a significantly higher risk of fall recurrence compared to those who lived in ground-level residences (odds ratio, 8.910; 95% confidence interval, 1.082–73.366).CONCLUSION: This study revealed a high incidence of fall recurrence in older adults who visited the ED due to falls. Our results suggest that careful evaluation and intervention are essential, especially in elderly individuals with fall histories and those who live in residences associated with ncreased risk of falls.
Accidental Falls
;
Adult
;
Aged
;
Emergencies
;
Emergency Service, Hospital
;
Follow-Up Studies
;
Housing for the Elderly
;
Humans
;
Incidence
;
Logistic Models
;
Medical Records
;
Prevalence
;
Recurrence
;
Risk Factors
;
Seoul
;
Telephone
7.Development of Model for 「The Survey on School Foodservice Program」
Hae Young LEE ; Bo Sook YI ; Jina CHA ; Sun Ok HAM ; Moon Kyung PARK ; Mi Nam LEE ; Hye Young KIM ; Haeng Hwa KANG ; Jin Wook KWON ; Yun Hui JEONG
Korean Journal of Community Nutrition 2019;24(1):60-76
OBJECTIVES: The purpose of this study was to develop a systematic and standardized「The Survey on School Foodservice Program」that can identify the current status of school meals on the nationwide level. METHODS: This study was carried out in six steps of the analysis of report/investigation data related to school foodservice in metropolitan and provincial offices of education, analysis of preceding research related to the actual status of school foodservice, field verification of the actual condition of the school foodservice site, development of a draft of「The Survey on School Foodservice Program」, pilot study of a draft of 「The Survey on School Foodservice Program」, and suggestions of a final model of「The Survey on School Foodservice Program」from August to December, 2017. Statistical analysis was performed for frequency analysis and descriptive analysis using the SPSS program ver. 23. RESULTS: A draft of「The Survey on School Foodservice Program」was developed by analyzing the current status of report/research data on school meals in metropolitan and provincial offices of education, analyzing the preceding research on school meals, and identifying the actual conditions at school foodservice sites. To verify the validity of the school foodservice survey questionnaire, 1,031 schools were sampled from a total of 10,251 schools and the pilot test of ‘2017 School Foodservice Survey’ was conducted. The final model of「The Survey on School Foodservice Program」consisted of 12 survey sections, 29 survey categories, and 433 survey items, and the survey cycle was set for one year and three years for each survey item. CONCLUSIONS: Based on the objective statistical data through「The Survey on School Foodservice Program」, it is possible to develop the school foodservice policy, which will help establish the reliability of the school meals.
Education
;
Humans
;
Meals
;
Pilot Projects
8.Development of Model for 「The Survey on School Foodservice Program」
Hae Young LEE ; Bo Sook YI ; Jina CHA ; Sun Ok HAM ; Moon Kyung PARK ; Mi Nam LEE ; Hye Young KIM ; Haeng Hwa KANG ; Jin Wook KWON ; Yun Hui JEONG
Korean Journal of Community Nutrition 2019;24(1):60-76
OBJECTIVES: The purpose of this study was to develop a systematic and standardized「The Survey on School Foodservice Program」that can identify the current status of school meals on the nationwide level. METHODS: This study was carried out in six steps of the analysis of report/investigation data related to school foodservice in metropolitan and provincial offices of education, analysis of preceding research related to the actual status of school foodservice, field verification of the actual condition of the school foodservice site, development of a draft of「The Survey on School Foodservice Program」, pilot study of a draft of 「The Survey on School Foodservice Program」, and suggestions of a final model of「The Survey on School Foodservice Program」from August to December, 2017. Statistical analysis was performed for frequency analysis and descriptive analysis using the SPSS program ver. 23. RESULTS: A draft of「The Survey on School Foodservice Program」was developed by analyzing the current status of report/research data on school meals in metropolitan and provincial offices of education, analyzing the preceding research on school meals, and identifying the actual conditions at school foodservice sites. To verify the validity of the school foodservice survey questionnaire, 1,031 schools were sampled from a total of 10,251 schools and the pilot test of ‘2017 School Foodservice Survey’ was conducted. The final model of「The Survey on School Foodservice Program」consisted of 12 survey sections, 29 survey categories, and 433 survey items, and the survey cycle was set for one year and three years for each survey item. CONCLUSIONS: Based on the objective statistical data through「The Survey on School Foodservice Program」, it is possible to develop the school foodservice policy, which will help establish the reliability of the school meals.
Education
;
Humans
;
Meals
;
Pilot Projects
9.Relationships among Mood Status, Social Support, Symptom Experience and Quality of Life in Colorectal Cancer Patients - based on the Theory of Unpleasant Symptoms.
Hyun Jeong SEO ; Eun Jung RYU ; Mi Young HAM
Asian Oncology Nursing 2018;18(2):104-113
PURPOSE: This study is to determine the effects of Colorectal Neoplasms patients' stage, location of disease, functional status (physiological factor), mood (psychological factor), and social support (situational factor) on their symptom experience, and to verify the relationship between symptom experience and the quality of life. METHODS: The Theory of Unpleasant Symptoms was the framework for the study. A descriptive correlational design was used in analysis of data obtained from a sample of 113 Colorectal Neoplasms patients who were undergoing chemotherapy. RESULTS: Total mood disturbance and symptom experiences were negatively correlated with physical component score (PCS) and mental component score (MCS) of quality of life (r −.33 to r=−.51, p<.001; r=.40 to r=.50, p<.001). Multiple regression analysis revealed that the functional status and symptoms interference variables explained 29.2% of the variance in PCS of quality of life. Symptoms interference and age explained 30.6% of the variance in MCS of quality of life. CONCLUSION: Although overall depression levels were low in this sample, these findings suggest that insomnia and fatigue are related to depression and that depression is more closely associated with quality of life than are insomnia and fatigue.
Colorectal Neoplasms*
;
Depression
;
Drug Therapy
;
Fatigue
;
Humans
;
Quality of Life*
;
Sleep Initiation and Maintenance Disorders
10.Association between Health Behaviors and a Family History of Cancer among Korean Women.
Youngsun HAM ; Hea Young OH ; Sang Soo SEO ; Mi Kyung KIM
Cancer Research and Treatment 2016;48(2):806-814
PURPOSE: The aim of this study was to examine the health-related behaviors related to a family history of cancer (FHCA) among Korean women underwent cancer screening. MATERIALS AND METHODS: A total of 8,956 women who underwent cancer screenings during 2001-2011 at the National Cancer Center, Korea, were analyzed. The association between health-related behaviors and a FHCA were assessed using multivariate logistic regression. RESULTS: Compared to women with no FHCA, women with FHCA were more likely to smoke (adjusted odds ratio [aOR], 1.32; 95% confidence interval [CI], 1.06 to 1.65), to be exposed to passive smoking (aOR, 1.21; 95% CI, 1.15 to 1.65), and less likely to engage in regular exercise (aOR, 1.20; 95% CI, 1.01 to 1.41). Combined effects of selected health behaviors for FHCA were significant, although no statistically significant interactions were observed between selected health behaviors. Compared to women with no FHCA, women with FHCA were more likely to simultaneously smoke and be exposed to passive smoking (aOR, 1.65; 95% CI, 1.17 to 2.31) and to simultaneously smoke and be physically inactive (aOR, 1.62; 95% CI, 1.00 to 2.64). CONCLUSION: The study found that women with a FHCA exhibited unhealthy behaviors compared to women without FHCA. Higher emphasis on lifestyle modifications using a new standardized tool is strongly recommended for those with a FHCA, as well as individuals who are at high risk, together with their family members.
Early Detection of Cancer
;
Female
;
Health Behavior*
;
Humans
;
Korea
;
Life Style
;
Logistic Models
;
Mass Screening
;
Odds Ratio
;
Smoke
;
Tobacco Smoke Pollution

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