1.Catalpa bignonioides extract improves exercise performance through regulation of growth and metabolism in skeletal muscles
Hoibin Jeong ; Dong-joo Lee ; Sung-Pil Kwon ; SeonJu Park ; Song-Rae Kim ; Seung Hyun Kim ; Jae-Il Park ; Deug-chan Lee ; Kyung-Min Choi ; WonWoo Lee ; Ji-Won Park ; Bohyun Yun ; Su-Hyeon Cho ; Kil-Nam Kim
Asian Pacific Journal of Tropical Biomedicine 2024;14(2):47-54
Objective: To evaluate the effects of Catalpa bignonioides fruit extract on the promotion of muscle growth and muscular capacity in vitro and in vivo. Methods: Cell viability was measured using the 3-(4,5-dimethylthiazol- 2-yl)-2,5-diphenyltetrazolium bromide assay. Cell proliferation was assessed using a 5-bromo-2’-deoxyuridine (BrdU) assay kit. Western blot analysis was performed to determine the protein expressions of related factors. The effects of Catalpa bignonioides extract were investigated in mice using the treadmill exhaustion test and whole-limb grip strength assay. Chemical composition analysis was performed using high-performance liquid chromatography (HPLC). Results: Catalpa bignonioides extract increased the proliferation of C2C12 mouse myoblasts by activating the Akt/mTOR signaling pathway. It also induced metabolic changes, increasing the number of mitochondria and glucose metabolism by phosphorylating adenosine monophosphate-activated protein kinase. In an in vivo study, the extract-treated mice showed improved motor abilities, such as muscular endurance and grip strength. Additionally, HPLC analysis showed that vanillic acid may be the main component of the Catalpa bignonioides extract that enhanced muscle strength. Conclusions: Catalpa bignonioides improves exercise performance through regulation of growth and metabolism in skeletal muscles, suggesting its potential as an effective natural agent for improving muscular strength.
2.Esthetic restoration of maxillary anterior teeth considering facial features in digital diagnostic wax-up: a case report
Sung-Ji GONG ; Sang-Won PARK ; Hyun-Pil LIM ; Kwi-dug YUN ; Chan PARK ; Woohyung JANG
Journal of Dental Rehabilitation and Applied Science 2024;40(3):179-188
To enhance the predictability of aesthetic treatment outcomes in aesthetic prosthetic restorations, considerations must include analysis of facial features, the relationship between teeth and lips, proportions of tooth width/length, gingival form, and more.Traditional diagnostic wax-ups have limitations in considering the patient’s facial features and are unable to facilitate rapid formmodifications. With recent advancements in digital technology, it is now possible to digitize the patient’s facial features in three dimensions, enabling the design of restorations that harmonize with facial features. These digital workflows not only improve efficiency but also provide patients with faster visualization of treatment outcomes, thereby enhancing motivation. Therefore, in this case, a treatment plan is devised to utilize digital diagnostic wax-ups considering the patient’s facial features for the finalprosthetic design.
3.Esthetic restoration of maxillary anterior teeth considering facial features in digital diagnostic wax-up: a case report
Sung-Ji GONG ; Sang-Won PARK ; Hyun-Pil LIM ; Kwi-dug YUN ; Chan PARK ; Woohyung JANG
Journal of Dental Rehabilitation and Applied Science 2024;40(3):179-188
To enhance the predictability of aesthetic treatment outcomes in aesthetic prosthetic restorations, considerations must include analysis of facial features, the relationship between teeth and lips, proportions of tooth width/length, gingival form, and more.Traditional diagnostic wax-ups have limitations in considering the patient’s facial features and are unable to facilitate rapid formmodifications. With recent advancements in digital technology, it is now possible to digitize the patient’s facial features in three dimensions, enabling the design of restorations that harmonize with facial features. These digital workflows not only improve efficiency but also provide patients with faster visualization of treatment outcomes, thereby enhancing motivation. Therefore, in this case, a treatment plan is devised to utilize digital diagnostic wax-ups considering the patient’s facial features for the finalprosthetic design.
4.Esthetic restoration of maxillary anterior teeth considering facial features in digital diagnostic wax-up: a case report
Sung-Ji GONG ; Sang-Won PARK ; Hyun-Pil LIM ; Kwi-dug YUN ; Chan PARK ; Woohyung JANG
Journal of Dental Rehabilitation and Applied Science 2024;40(3):179-188
To enhance the predictability of aesthetic treatment outcomes in aesthetic prosthetic restorations, considerations must include analysis of facial features, the relationship between teeth and lips, proportions of tooth width/length, gingival form, and more.Traditional diagnostic wax-ups have limitations in considering the patient’s facial features and are unable to facilitate rapid formmodifications. With recent advancements in digital technology, it is now possible to digitize the patient’s facial features in three dimensions, enabling the design of restorations that harmonize with facial features. These digital workflows not only improve efficiency but also provide patients with faster visualization of treatment outcomes, thereby enhancing motivation. Therefore, in this case, a treatment plan is devised to utilize digital diagnostic wax-ups considering the patient’s facial features for the finalprosthetic design.
5.Explanatory Power and Prognostic Implications of Factors Associated with Troponin Elevation in Acute Ischemic Stroke
Sung-Ho AHN ; Ji-Sung LEE ; Mi-Sook YUN ; Jung-Hee HAN ; Soo-Young KIM ; Young-Hak KIM ; Sang-Hyun LEE ; Min-Gyu PARK ; Kyung-Pil PARK ; Dong-Wha KANG ; Jong S. KIM ; Sun U. KWON
Journal of Stroke 2023;25(1):141-150
Background:
and Purpose We investigated the impact of comorbidity burden on troponin elevation, with separate consideration of neurological conditions, in patients with acute ischemic stroke (AIS).
Methods:
This prospective, observational cohort study consecutively enrolled patients with AIS for 2 years. Serum cardiac troponin I was repeatedly measured, and disease-related biomarkers were collected for diagnosis of preassigned comorbidities, including atrial fibrillation (AF), ischemic heart disease (IHD), myocardial hypertrophy (MH), heart failure (HF), renal insufficiency (RI), and active cancer. The severity of neurological deficits and insular cortical ischemic lesions were assessed as neurological conditions. Adjusted associations between these factors and troponin elevation were determined using a multivariate ordinal logistic regression model and area under the receiver operating characteristic curve (AUC). Cox proportional hazards model was used to determine the prognostic significance of comorbidity beyond neurological conditions.
Results:
Among 1,092 patients (66.5±12.4 years, 63.3% male), 145 (13.3%) and 335 (30.7%) had elevated (≥0.040 ng/mL) and minimally-elevated (0.040–0.010 ng/mL) troponin, respectively. In the adjusted analysis, AF, MH, HF, RI, active cancer, and neurological deficits were associated with troponin elevation. The multivariate model with six comorbidities and two neurological conditions exhibited an AUC of 0.729 (95% confidence interval [CI], 0.698–0.759). In Cox regression, AF, IHD, and HF were associated with adverse cardio-cerebrovascular events, whereas HF and active cancer were associated with mortality.
Conclusion
Troponin elevation in patients with AIS can be explained by the burden of comorbidities in combination with neurological status, which explains the prognostic significance of troponin assay.
6.Clinical Sensitivity of the (1–3)-β-D-glucan Test for Predicting Candidemia
Yun Woo LEE ; So Yun LIM ; Sol JIN ; Hye Jin PARK ; Heungsup SUNG ; Mi-Na KIM ; Seongman BAE ; Jiwon JUNG ; Min Jae KIM ; Sung-Han KIM ; Sang-Oh LEE ; Sang-Ho CHOI ; Yang Soo KIM ; Yong Pil CHONG
Annals of Laboratory Medicine 2023;43(4):381-385
The sensitivity of the (1–3)-β-D-glucan (BDG) diagnostic test for candidemia varies in different clinical settings, and its usefulness in early diagnosis of candidemia is suboptimal. We evaluated the sensitivity of the test for early candidemia prediction. All adult patients with culture-proven candidemia who underwent a serum Goldstream Fungus (1–3)-β-D-Glucan Test within seven days prior to candidemia onset at a tertiary referral hospital between January 2017 and May 2021 were included. Any-positive BDG results within seven days prior to candidemia onset were obtained in 38 out of 93 (40.9%) patients. The positive rate increased when the test was performed near the day of candidemia onset (P=0.04) but reached only 52% on the day of candidemia onset. We observed no significant differences between BDG-positive and -negative groups in terms of underlying disease, risk factors for candidemia, clinical presentation, origin of candidemia, and 30-day mortality. Candida albicans was significantly associated with positive BDG results than with all-negative BDG results (P=0.04). The Goldstream BDG test is unreliable for candidemia prediction because of its low sensitivity. Negative BDG results in patients with a high risk of invasive candidiasis should be interpreted with caution.
7.Osteoporosis Is Associated with an Increased Risk of Colorectal Adenoma and High-Risk Adenoma: A Retrospective, Multicenter, Cross-Sectional, Case-Control Study
Ji Hyung NAM ; Myung KOH ; Hyoun Woo KANG ; Kum Hei RYU ; Dong Seok LEE ; Su Hwan KIM ; Dong Kee JANG ; Ji Bong JEONG ; Ji Won KIM ; Kook Lae LEE ; Dong Jun OH ; Yun Jeong LIM ; Seong-Joon KOH ; Jong Pil IM ; Joo Sung KIM
Gut and Liver 2022;16(2):269-276
Background/Aims:
The protective effects of vitamin D and calcium on colorectal neoplasms are known. Bone mineral density (BMD) may be a reliable biomarker that reflects the long-term anticancer effect of vitamin D and calcium. This study aimed to evaluate the association between BMD and colorectal adenomas including high-risk adenoma.
Methods:
A multicenter, cross-sectional, case-control study was conducted among participants with average risk of colorectal cancer who underwent BMD and screening colonoscopy between 2015 and 2019. The main outcome was the detection of colorectal neoplasms. The variable under consideration was low BMD (osteopenia/osteoporosis). The logistic regression model included baseline demographics, components of metabolic syndrome, fatty liver disease status, and aspirin and multivitamin use.
Results:
A total of 2,109 subjects were enrolled. The mean age was 52.1±10.8 years and 42.6% were male. The adenoma detection rate was 43%. Colorectal adenoma and high-risk adenoma were both more prevalent in subjects with low BMD than those with normal BMD (48.2% vs 38.8% and 12.1% vs 9.1%). In the univariate analysis, old age, male sex, smoking, metabolic components, fatty liver, and osteoporosis were significantly associated with the risk of adenoma and high-risk adenoma. In the multivariate analysis, osteoporosis was independently associated with risk of colorectal adenoma (odds ratio [OR], 1.65; 95% confidence interval [CI], 1.11 to 2.46; p=0.014) and high-risk adenoma (OR, 1.94; 95% CI, 1.14 to 3.29; p=0.014).
Conclusions
Osteoporosis is an independent risk factor of colorectal adenoma and high-risk adenoma
8.Suicidality and Its Risk Factor in Migraine Patients
Jong-Geun SEO ; Byun-Kun KIM ; Min Kyung CHU ; Soo-Jin CHO ; Pil-Wook CHUNG ; Heui-Soo MOON ; Byung-Su KIM ; Jin-Young AHN ; Jong-Hee SOHN ; Jae-Myun CHUNG ; Yun-Ju CHOI ; Hye-Jin MOON ; Sung-Pa PARK
Journal of the Korean Neurological Association 2022;40(3):228-234
Background:
Migraine patients have a higher frequency of suicidality than people without migraine. The aim of this study was to identify suicidality and its risk factors in migraine patients.
Methods:
We enrolled 358 migraine patients from 11 hospitals. We collected data regarding their clinical characteristics and the patients completes the questionnaires. We also interviewed patients with the Mini International Neuropsychiatric Interview (MINI)plus version 5.0.0 to identify their suicidality. The International Classification of Headache Disorders, third edition, beta version was used in headache diagnosis.
Results:
The frequency of suicidality in migraine patients was 118 (33.0%). Migraine patients with suicidality were more likely to have a major depressive disorder or generalized anxiety disorder than those without suicidality. Among variables, risk factors for suicidality in migraine patients were female (odds ratio [OR], 4.110; 95% confidence interval [CI], 1.55310.878; p=0.004), attack duration (OR, 2.559; 95% CI, 1.2105.413; p=0.011), Patient Health Questionnaire9 (OR, 1.111; 95% CI, 1.0381.189; p=0.002), and Generalized Anxiety Disorder7 (OR, 1.194; 95% CI, 1.1011.294; p<0.001).
Conclusions
Suicidality in migraine patients is common. Therefore, clinicians who take care of migraine patients should be concerned about suicidality and its risk factors such as female gender, attack duration, depression or anxiety.
9.Clinical Usefulness of Virtual Ablation Guided Catheter Ablation of Atrial Fibrillation Targeting Restitution Parameter-Guided Catheter Ablation: CUVIA-REGAB Prospective Randomized Study
Young CHOI ; Byounghyun LIM ; Song-Yi YANG ; So-Hyun YANG ; Oh-Seok KWON ; Daehoon KIM ; Yun Gi KIM ; Je-Wook PARK ; Hee Tae YU ; Tae-Hoon KIM ; Pil-Sung YANG ; Jae-Sun UHM ; Jamin SHIM ; Sung Hwan KIM ; Jung-Hoon SUNG ; Jong-il CHOI ; Boyoung JOUNG ; Moon-Hyoung LEE ; Young-Hoon KIM ; Yong-Seog OH ; Hui-Nam PAK ; For the CUVIA-REGAB Investigators
Korean Circulation Journal 2022;52(9):699-711
Background and Objectives:
We investigated whether extra-pulmonary vein (PV) ablation targeting a high maximal slope of the action potential duration restitution curve (Smax) improves the rhythm outcome of persistent atrial fibrillation (PeAF) ablation.
Methods:
In this open-label, multi-center, randomized, and controlled trial, 178 PeAF patients were randomized with 1:1 ratio to computational modeling-guided virtual Smax ablation (V-Smax) or empirical ablation (E-ABL) groups. Smax maps were generated by computational modeling based on atrial substrate maps acquired during clinical procedures in sinus rhythm. Smax maps were generated during the clinical PV isolation (PVI). The V-Smax group underwent an additional extra-PV ablation after PVI targeting the virtual high Smax sites.
Results:
After a mean follow-up period of 12.3±5.2 months, the clinical recurrence rates (25.6% vs. 23.9% in the V-Smax and the E-ABL group, p=0.880) or recurrence appearing as atrial tachycardia (11.1% vs. 5.7%, p=0.169) did not differ between the 2 groups. The postablation cardioversion rate was higher in the V-Smax group than E-ABL group (14.4% vs. 5.7%, p=0.027). Among antiarrhythmic drug-free patients (n=129), the AF freedom rate was 78.7% in the V-Smax group and 80.9% in the E-ABL group (p=0.776). The total procedure time was longer in the V-Smax group (p=0.008), but no significant difference was found in the major complication rates (p=0.497) between the groups.
Conclusions
Unlike a dominant frequency ablation, the computational modeling-guided V-Smax ablation did not improve the rhythm outcome of the PeAF ablation and had a longer procedure time.
10.Differences in the heritability of craniofacial skeletal and dental characteristics between twin pairs with skeletal Class I and II malocclusions
Heon-Mook PARK ; Pil-Jong KIM ; Joohon SUNG ; Yun-Mi SONG ; Hong-Gee KIM ; Young Ho KIM ; Seung-Hak BAEK
The Korean Journal of Orthodontics 2021;51(6):407-418
Objective:
To investigate differences in the heritability of skeletodental characteristics between twin pairs with skeletal Class I and Class II malocclusions.
Methods:
Forty Korean adult twin pairs were divided into Class I (C-I) group (0° ≤ angle between point A, nasion, and point B [ANB]) ≤ 4°; mean age, 40.7 years) and Class II (C-II) group (ANB > 4°; mean age, 43.0 years). Each group comprised 14 monozygotic and 6 dizygotic twin pairs. Thirty-three cephalometric variables were measured using lateral cephalograms and were categorized as the anteroposterior, vertical, dental, mandible, and cranial base characteristics. The ACE model was used to calculate heritability (A > 0.7, high heritability). Thereafter, principal component analysis (PCA) was performed.
Results:
Twin pairs in C-I group exhibited high heritability values in the facial anteroposterior characteristics, inclination of the maxillary and mandibular incisors, mandibular body length, and cranial base angles. Twin pairs in C-II group showed high heritability values in vertical facial height, ramus height, effective mandibular length, and cranial base length. PCA extracted eight components with 88.3% in the C-I group and seven components with 91.0% cumulative explanation in the C-II group.
Conclusions
Differences in the heritability of skeletodental characteristics between twin pairs with skeletal Class I and II malocclusions might provide valuable information for growth prediction and treatment planning.

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