1.Intermittent Administration of Parathyroid Hormone for Orthodontic Tooth Movement in Mongrel Dogs: Preliminary Study
Won-Ho KIM ; Bo Ram LEE ; Hey-Yun KIM ; Minji KIM ; Jin-Woo KIM
Journal of Korean Dental Science 2023;16(2):182-191
Purpose:
This study investigated the orthodontic tooth movement after weekly parathyroid hormone (PTH) injection in mongrel dogs and analyzes bone formation activity on the tension and pressure sides of the tooth movement in mongrel dogs.
Materials and Methods:
Three mongrel dogs were used in this study. The first premolar was extracted and orthodontic force using 150 g of closed coil springs between the canine and second premolar was applied. The low-dose PTH group (PTH_1) and high-dose PTH group (PTH_2) received weekly injections of 1.61 μg/kg and 3.23 μg/kg of PTH, respectively. The control group received weekly injections of 1 ml of saline. Clinical, histomorphometric analysis were carried out.Result: The orthodontic tooth movement was greatest in the PTH_2 group and the lowest in the control group. Fluorescence staining images showed higher bone remodeling on the tension side of the tooth movement in the PTH_1 and PTH_2 groups. PTH_2 group showed a thicker labeling band than the PTH_1 group. PTH_2 group showed the highest mineral apposition rate and bone formation rate, followed by the PTH_1 group and the control group.
Conclusion
Weekly intermittent PTH injection, especially in the short-term and at higher doses with orthodontic force, successfully increased orthodontic tooth movement and bone remodeling in mongrel dogs.
2.Associated Factors for Asthma Severity in Korean Children: A Korean Childhood Asthma Study
Eun LEE ; Dae Jin SONG ; Woo Kyung KIM ; Dong In SUH ; Hey Sung BAEK ; Meeyong SHIN ; Young YOO ; Jin Tack KIM ; Ji Won KWON ; Gwang Cheon JANG ; Dae Hyun LIM ; Hyeon Jong YANG ; Hwan Soo KIM ; Ju Hee SEO ; Sung Il WOO ; Hyung Young KIM ; Youn Ho SHIN ; Ju Suk LEE ; Jisun YOON ; Sungsu JUNG ; Minkyu HAN ; Eunjin EOM ; Jinho YU
Allergy, Asthma & Immunology Research 2020;12(1):86-98
PURPOSE: Childhood asthma has a considerable social impact and economic burden, especially in severe asthma. This study aimed to identify the proportion of childhood asthma severity and to evaluate associated factors for greater asthma severity. METHODS: This study was performed on 667 children aged 5–15 years with asthma from the nationwide 19 hospitals in the Korean childhood Asthma Study (KAS). Asthma was classified as mild intermittent, mild persistent, and moderate/severe persistent groups according to the National Asthma Education and Prevention Program recommendations. Multinomial logistic regression models were used to identify the associated factors for greater asthma severity. RESULTS: Mild persistent asthma was most prevalent (39.0%), followed by mild intermittent (37.6%), moderate persistent (22.8%), and severe persistent asthma (0.6%). Onset later than 6 years of age (adjusted odds ratio [aOR], 1.69 for mild persistent asthma; aOR, 1.92 for moderate/severe persistent asthma) tended to increase asthma severity. Exposure to environmental tobacco smoke (aOR, 1.53 for mild persistent asthma; aOR, 1.85 for moderate/severe persistent asthma), and current dog ownership with sensitization to dog dander (aOR, 5.86 for mild persistent asthma; aOR, 6.90 for moderate/severe persistent asthma) showed increasing trends with greater asthma severity. Lower maternal education levels (aOR, 2.32) and no usage of an air purifier in exposure to high levels of outdoor air pollution (aOR, 1.76) were associated with moderate/severe persistent asthma. CONCLUSIONS: Modification of identified environmental factors associated with greater asthma severity might help better control childhood asthma, thereby reducing the disease burden due to childhood asthma.
Air Filters
;
Air Pollution
;
Animals
;
Asthma
;
Child
;
Dander
;
Dogs
;
Education
;
Environmental Exposure
;
Humans
;
Logistic Models
;
Odds Ratio
;
Ownership
;
Risk Factors
;
Smoke
;
Social Change
;
Tobacco
3.Attitude Toward Illness and Treatment in Adherent Schizophrenia Patients: A Qualitative Study
Journal of Korean Neuropsychiatric Association 2020;59(2):159-165
Objectives:
The adherence to antipsychotics is essential for relapse prevention in schizophrenia. Although 40–60% of schizophrenia patients suffer from non-adherence problems, some patients had consistently good adherence. They are clinically desirable examples of non-adherent patients. This qualitative study aimed to explore the actors influencing medication adherence in people with schizophrenia with good adherence to the patients’ perspectives.
Methods:
In-depth semi-structured interviews were conducted with 23 subjects with schizophrenia. Narratives were elicited on the attitudes toward illness and treatment, familiar support for treatment, and perceived stigma about psychosis over time.
Results:
In the process of changing from non-adherence to adherence, symptomatic relapse, involuntary treatment, and familial support played leading roles. The patients’ experiences on their own made them accept the illness and necessity of medications. Once the patients accepted the need for treatments, side effects and social stigma did not influence their adherence. Reducing psychotic symptoms was the priority of the treatment effects on the patients’ perspectives.
Conclusion
Adherence in schizophrenia requires multiple factors that affect the attitude toward illness and medication over time. Therefore, it is necessary to understand the specific process of adherence and develop the relevant interventions to facilitate those processes over time.
4.Prescribing Pattern of Clozapine and Clinical Factors associated with Discontinuation of Clozapine
Korean Journal of Schizophrenia Research 2019;22(1):1-7
OBJECTIVES: Clozapine is the drug of choice in treatment-resistant schizophrenia. However, its use is often delayed and a significant proportion of clozapine treated patients fails to respond and experience potentially dangerous side-effects. The aim of this retrospective study was to describe the clinical characteristics of patients started on clozapine and the rate and reason of discontinuation of clozapine. METHODS: Medical records of 83 patients started on clozapine during the period of 2012–2016 were reviewed. RESULTS: Clozapine started on patients in chronic phase; the mean age of start was 38.1 years old and the mean number of psychiatric admission was 6.5. A majority (80.7%) of the patients had been subjected to antipsychotic polypharmacy prior to clozapine and most (61.5%) of them were being treated with polypharmacy including clozapine. Overall, 39 (47.0%) subjects had continued clozapine whereas 15 (18.1%) discontinued it; 29 (34.9%) were lost to follow-up. The most common reason for discontinuation was side-effects (n=13) including six life-threatening cases, most of which occurred within 6 months of its start. CONCLUSION: This study demonstrated that there is some evidence of delays to clozapine use, high rates of polypharmacy and significant rate of discontinuation during the early phase of clozapine treatment.
Antipsychotic Agents
;
Clozapine
;
Humans
;
Lost to Follow-Up
;
Medical Records
;
Polypharmacy
;
Retrospective Studies
;
Schizophrenia
5.Triennial Report of Endocrinology and Metabolism, 2015 to 2017.
Eun Jung RHEE ; Hey Yeon JANG ; Won Young LEE
Endocrinology and Metabolism 2018;33(2):195-201
No abstract available.
Endocrinology*
;
Metabolism*
6.Erratum: In Vitro Evaluation of Allergen Potencies of Commercial House Dust Mite Sublingual Immunotherapy Reagents.
Kyung Hee PARK ; Mina SON ; Soo Young CHOI ; Hey Jung PARK ; Jae Hyun LEE ; Kyoung Yong JEONG ; Joo Shil LEE ; Jung Won PARK
Allergy, Asthma & Immunology Research 2017;9(2):187-187
Corrections for Table. 1 in page 125 are needed. We apologize for any inconvenience that this may have caused.
7.Clinical Evaluation of OneTouch Diabetes Management Software System in Patients with Type 2 Diabetes Mellitus.
Jung Min KIM ; Hey Jean LEE ; Keum Ok KIM ; Jong Chul WON ; Kyung Soo KO ; Byung Doo RHEE
Diabetes & Metabolism Journal 2016;40(2):129-139
BACKGROUND: OneTouch Diabetes Management Software (OTDMS) is an efficient way to track and monitor the blood glucose level. It is possible to download data from the OneTouch Ultra via the meter's data port, and to transform the numbers of the blood glucose level into a graph, a chart, or statistics. The objectives of this study were to evaluate whether the use of OTDMS in consultation hours would improve patients' knowledge of diabetes mellitus (DM), compliance, satisfaction with doctor and medical treatment, doctor-patient reliability, and glucose control. METHODS: All patients were randomized into either the OTDMS group using OneTouch Ultra or the control groups not using it. Both groups had conventional DM education and only the OTDMS group used data from OTDMS as explanation materials during consultation hours. At enrollment and after 6 months, we performed a questionnaire survey consisting of the diabetes knowledge test, items for compliance of treatment, patient's satisfaction, doctor-patient reliability, and glycosylated hemoglobin (HbA1c). RESULTS: We analyzed 6-month follow-up data from 92 patients (OTDMS 42 vs. control 50). Both groups showed significant improvements in HbA1c, diabetes knowledge, compliance, reliability, and satisfaction after 6 months. However, there were no significant differences between OTDMS and control groups overall. Only "weekly frequency of checking blood glucose level" of compliance and "trying to follow doctor's order" of reliability showed better results in the OTDMS group. CONCLUSION: Using the OTDMS system for explanation during consultation hours seems to be more helpful to improve patient's compliance and reliability, especially for checking blood glucose level and trying to follow the doctor's order.
Blood Glucose
;
Compliance
;
Diabetes Mellitus
;
Diabetes Mellitus, Type 2*
;
Disease Management
;
Education
;
Follow-Up Studies
;
Glucose
;
Hemoglobin A, Glycosylated
;
Humans
;
Self Care
8.Evaluation of the association between pollen count and the outbreak of allergic disease.
Ha Na KANG ; Hey Suk YUN ; Young Jin CHOI ; Jae Won OH ; Ui Young MIN ; Yoon Sook HEO ; Young Seop LEE ; Mijin KIM ; Kyu Rang KIM ; Baek Jo KIM
Allergy, Asthma & Respiratory Disease 2016;4(6):415-422
PURPOSE: This study focused on the evaluation of the relation between pollen concentration and the outbreak of allergic disease (symptom index), and this outcome would be necessary to upgrade risk grade for the pollen forecasting system. METHODS: Airborne particles carrying allergens, such as pollen, were collected daily at the Seoul and Guri area by using 7-day Burkard samplers for 6 years. A total of 596 Subjects were recruited from Hanyang University Seoul Hospital (n=144 for spring, n=139 for autumn), and Hanyang University Guri Hospital (n=157 for spring, n=156 for autumn). Symptom index was evaluated and recorded by phone calling to study subjects daily or asking questionnaire when they visit outpatient clinic every week. Statistical analysis of data was performed by using correlation coefficients and regression models with time series graph. RESULTS: Two peak seasons of pollen concentration were May and September in Korea. In skin prick tests, the sensitization rate to ragweed pollen was gradually increased in children. In the same period, sensitization rates to airborne pollen, especially oak, birch for spring, and Japanese hop for autumn were increased annually. There was a significantly relationship between symptom index of allergic patients and allergic pollen concentrations in this study. Especially symptom index was significantly correlated to the concentration of oak pollen of day 1 in spring and to the concentration of Japanese hop pollen of day 0 in autumn. CONCLUSION: Sensitization rates to pollens increased annually. There is a significant relationship between allergy symptom index and pollen concentration. There remains to confirm the Korean own risk grade of pollen allergy.
Allergens
;
Ambrosia
;
Ambulatory Care Facilities
;
Asian Continental Ancestry Group
;
Betula
;
Child
;
Forecasting
;
Humans
;
Hypersensitivity
;
Korea
;
Pollen*
;
Rhinitis, Allergic, Seasonal
;
Seasons
;
Seoul
;
Skin
9.Plasma secreted phospholipase A2 in asthmatic children: correlation with leptin levels and exercise induced bronchoconstriction.
Jueng Sup YOU ; Won Bok CHOI ; Yoon Young YI ; Soo In JEONG ; Joon Sup SONG ; Seong YANG ; Il Tae HWANG ; Ha Baik LEE ; Hey Sung BAEK
Allergy, Asthma & Respiratory Disease 2015;3(2):99-104
PURPOSE: Dysregulated cysteinyl leukotriene (CysLT) synthesis is prominent in exercise-induced bronchoconstriction (EIB). Secreted phospholipase A2 (sPLA2) plays a key regulatory role in the biosynthesis of CysLTs. We previously found that serum leptin levels correlate with (EIB) in children with asthma. The aim of this study was to address the relationship between plasma sPLA2/leptin levels and EIB. METHODS: Sixty-seven prepubertal children between the ages of 6 and 10 years were included in the study. They were asthmatics with EIB (n=25), asthmatics without EIB (n=21), and healthy subjects (n=21). We measured the plasma sPLA2 and leptin levels. We also performed pulmonary function tests at baseline, after bronchodilator inhalation, and after exercise. RESULTS: The sPLA2 and leptin levels were significantly higher in asthmatics with EIB than in those without and control subjects. In addition, sPLA2 levels were significantly correlated with body mass index (Speraman correlation coefficient r=0.343, P=0.023) and leptin levels (partial correlation coefficient r=318, P=0.033). The maximum decrease in % forced expiratory volume in 1 second after exercise was significantly correlated with both PLA2 levels (r=0.301, P=0.041) and leptin levels (r=0.346, P=0.018). CONCLUSION: The sPLA2 and leptin levels were significantly higher in asthmatics with EIB than in asthmatics without EIB and control subjects. In addition, sPLA2 levels were significantly correlated with leptin levels and EIB in asthmatic children.
Asthma
;
Body Mass Index
;
Bronchoconstriction*
;
Child*
;
Forced Expiratory Volume
;
Humans
;
Inhalation
;
Leptin*
;
Phospholipases A2*
;
Plasma*
;
Respiratory Function Tests
10.In Vitro Evaluation of Allergen Potencies of Commercial House Dust Mite Sublingual Immunotherapy Reagents.
Kyung Hee PARK ; Mina SON ; Soo Young CHOI ; Hey Jung PARK ; Jae Hyun LEE ; Kyoung Yong JEONG ; Joo Shil LEE ; Jung Won PARK
Allergy, Asthma & Immunology Research 2015;7(2):124-129
PURPOSE: The clinical efficacy of allergen-immunotherapy is known to be dose dependent. However, optimal maintenance dosage has not yet been determined for sublingual immunotherapy (SLIT). Furthermore, since companies adopt their own units for expression of allergenicity, the allergen concentrations of individual reagents cannot be compared easily. We sought to measure and compare the allergenicities of 3 commercially available house dust mite (HDM) SLIT regents and a subcutaneous immunotherapy reagent. METHODS: We measured the HDM allergenic potency of the maintenance dosages of three SLIT reagents: Staloral(R) (300 index of reactivity [IR] /mL, recommended maintenance dosage [MD]: 120 IR), SLITone(R) (1,000 standard therapeutic unit [STU]/mL, recommended MD: 200 STU), Wolwopharma(R) (100 microg/mL, recommended MD: 20 microg), and subcutaneous immunotherapy regents of Hollister-Stier (10,000 allergy unit [AU] /mL). The allergenic potency was assessed by measuring the total protein concentrations, mite group 1 and 2 allergens using 2-site ELISA, and an inhibition test against IgE specific to Dermatophagoides farinae and Dermatophagoides pteronyssinus. RESULTS: The protein content of the Wolwopharma(R) reagent was 1.5-261.4 times higher than that of the other 2 SLIT reagents. The concentration of group 1 major allergens in Staloral(R) (132.03 microg/mL) was 33- to 44.5-fold higher than in SLITone(R) (4.00 microg/mL) and Wolwopharma(R) (2.97 microg/mL). The concentration of group 2 major allergen was also 8.9- to 10.5-fold higher in Staloral(R) (15.7 microg/mL) than in SLITone(R) (1.8 microg/mL) or Wolwopharma(R) (1.5 microg/mL). An ELISA inhibition study against HDM-specific IgE showed that the allergen potency of Staloral(R) reagent is 8.5-fold and 21-fold higher than that of SLITone(R) or Wolwopharma(R), respectively. The differences between the maintenance dosages are further exaggerated by the differences in the recommended volumes of SLIT reagents. CONCLUSIONS: The allergen potencies of commercially available HDM SLIT reagents are markedly different. Consensus regarding the optimal allergen concentration for SLIT reagents used to treat HDM respiratory allergies is needed.
Allergens
;
Consensus
;
Dermatophagoides farinae
;
Dermatophagoides pteronyssinus
;
Enzyme-Linked Immunosorbent Assay
;
Hypersensitivity
;
Immunoglobulin E
;
Immunotherapy
;
Indicators and Reagents*
;
Mites
;
Pyroglyphidae*
;
Sublingual Immunotherapy*

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