1.Prognostic Significance of 24-Hour Ambulatory Blood Pressure and Holter Monitoring in Patients without Atrial Fibrillation
Sojeong PARK ; Jisoo PARK ; Yeonjoo CHOI ; Sanghoon SHIN ; Junbeom PARK
The Ewha Medical Journal 2023;46(3):e6-
Objectives:
This study investigated the 24-hour ambulatory blood pressure monitoring (ABPM) and Holter parameters for evaluating their prognostic significance of cardiovascular events including stroke in population without atrial fibrillation (AF).
Methods:
Among 3,199 patients that underwent ABPM, 335 who also underwent Holter recordings were selected in a tertiary hospital. Seventeen patients who had been documented with AF on Holter monitoring or diagnosed with AF were excluded, and finally 318 patients were analyzed. The association between cardiovascular events and ABPM/Holter parameters was analyzed by a logistic regression model, and the risk factors were estimated by a Cox hazard model. Age, sex, and histories of cardiovascular disease were adjusted by a multivariable analysis, and the cut-off values were suggested by a Kaplan-Meyer analysis.
Results:
During the total follow-up (28.5±1.7 months), 13 (4.1%) stroke, 6 (1.9%) heart failure, and 12 (3.8%) acute coronary syndrome incidences were observed. In the univariate analysis of the ABPM parameters, an increment in the night systolic BP (hazard ratio=1.034, P=0.020) and night diastolic BP (hazard ratio=1.063, P=0.031) significantly elevated the risk of a stroke occurrence. According to the Kaplan-Meyer analysis, there was a significant difference in the stroke incidence between the groups divided by a cut-off value of the night systolic BP of 120 mmHg (P=0.014) and night diastolic BP of 75 mmHg (P=0.023).
Conclusion
In a population without AF, the nocturnal BP was a significant predictor of a stroke incidence. At this point, the cut-off value of mean 120/75 mmHg in 24 ABPM was advisable.
2.Spectral Analysis of Fetal Heart Rate Variability in Fetal Distress.
Yeonhee CHEON ; Dongjoo KIM ; Daeyoung CHUNG ; Kyungtae PARK ; Youngbo SHIM ; Chulseung LEW ; Sanghoon YI ; Jongchul SHIN ; Hyunggeun LEE ; Soopyung KIM
Korean Journal of Obstetrics and Gynecology 2001;44(5):845-851
OBJECTIVE: To evaluate the usefulness of power spectral analysis on fetal heart rate variability as a new diagnostic method of fetal distress. STUDY DESIGN: Among 76 pregnant women who underwent computerized electronic fetal monitoring and cord blood gas analysis, we divided them into 3 groups, i.e.; normal fetus group (36), presumed distress group (26) and acidemic distress group (14). In order to perform linear analysis on the raw data of the fetal heart rate, after resampling, we performed Fourier transformation and investigated power distributions among very low frequency (VLF), low frequency (LF), high frequency (HF) bands, and autonomic balance (LF/HF). RESULTS: The results of the spectral analysis showed that in normal fetus group, the difference in the distribution of power spectrums of VLF, LF and HF was significantly higher than in presumed distress group and acidemic distress group. In fetal distress, the LF and VLF value (0.0023, 0.0437) were good predictors (sensitivity 97.5%, 75.0% and specificity 86.1%, 94.4%). The LF value (0.0013) was a good predictor in fetal acidemia (sensitivity 97.5% and specificity 86.1%). CONCLUSIONS: A computerized spectral analysis of fetal heart rate variation is a good predictor of fetal distress, which is made automatically and objectively.
Female
;
Fetal Blood
;
Fetal Distress*
;
Fetal Heart*
;
Fetal Monitoring
;
Fetus
;
Fourier Analysis
;
Heart Rate, Fetal*
;
Humans
;
Pregnancy
;
Pregnant Women
;
Sensitivity and Specificity
3.Dexamethasone Inhibits TGF-β1-Induced Cell Migration by Regulating the ERK and AKT Pathways in Human Colon Cancer Cells Via CYR61.
Sanghoon HAN ; Ngoc Thuy BUI ; Manh Tin HO ; Young Mee KIM ; Moonjae CHO ; Dong Bok SHIN
Cancer Research and Treatment 2016;48(3):1141-1153
PURPOSE: One of the features in cancer development is the migration of cancer cells to form metastatic lesions. CYR61 protein promotes migration and the epithelial-mesenchymal transition in several cancer cell types. Evidence suggests that CYR61 and dexamethasone are relevant to colorectal cancer. However, relationships between them and colorectal cancer are still unclear. Understanding the molecular mechanism of colorectal cancer progression related with CYR61 and dexamethasone, which is widely used for combination chemotherapy, is necessary for improved therapy. MATERIALS AND METHODS: We used colorectal cancer cells, HCT116, co-treated with transforming growth factor β1 (TGF-β1) and dexamethasone to examine the inhibitory migration effect of dexamethasone by migratory assay. Alternatively, both migratory pathways, expression of AKT and ERK, and the target factor CYR61 was also tested by co-treatment with TGF-β1 and dexamethasone. RESULTS: We report that dexamethasone significantly inhibited TGF-β1-induced cell migration, without affecting cell proliferation. Importantly, we observed that TGF-β1 promoted the epithelial-mesenchymal transition process and that dexamethasone co-treatment abolished this effect. ERK and AKT signaling pathways were found to mediate TGF-β1-induced migration, which was inhibited by dexamethasone. In addition, TGF-β1 treatment induced CYR61 expression whereas dexamethasone reduced it. These observations were compatible with the modulation of migration observed following treatment of HCT116 cells with human recombinant CYR61 and anti-CYR61 antibody. Our results also indicated that TGF-β1 enhanced collagen I and reduced matrix metalloproteinase 1 expression, which was reversed by dexamethasone treatment. CONCLUSION: These findings suggested that dexamethasone inhibits AKT and ERK phosphorylation, leading to decreased CYR61 expression, which in turn blocks TGF-β1-induced migration.
Cell Movement*
;
Cell Proliferation
;
Collagen
;
Colon*
;
Colonic Neoplasms*
;
Colorectal Neoplasms
;
Cysteine-Rich Protein 61
;
Dexamethasone*
;
Drug Therapy, Combination
;
Epithelial-Mesenchymal Transition
;
HCT116 Cells
;
Humans*
;
Matrix Metalloproteinase 1
;
Phosphorylation
;
Transforming Growth Factors
4.A Case of White Fibrous Papulosis of the Neck.
Jung Hoon YANG ; Jung Woong SHIN ; Sung Yul LEE ; Moon Kyun CHO ; You In BAE ; Sanghoon LEE
Korean Journal of Dermatology 2010;48(9):817-819
White fibrous papulosis of the neck is a rare skin disease that manifests with tiny papules that are distributed on the neck. Thick collagen bundles in the papillary dermis and diminution of the elastic fiber are characteristic on histologic examination. It is thought to be a normal aging process of the skin or an associated disorder. We report here on a case of white fibrous papulosis of the neck of a 49-year-old Korean woman.
Aging
;
Collagen
;
Dermis
;
Elastic Tissue
;
Female
;
Humans
;
Middle Aged
;
Neck
;
Skin
;
Skin Diseases
5.A Case of Nevus Anelasticus.
Jung Woong SHIN ; Dae Hyun KIM ; Young Lip PARK ; Jong Suk LEE ; Sung Yul LEE ; Sanghoon LEE
Korean Journal of Dermatology 2010;48(2):139-142
Nevus anelasticus is an elastic tissue disorder that is characterized by perifollicular papules and the fragmentation or absence of elastic tissue. A 17-year-old female presented with multiple erythematous papules on her lower back. These skin lesions first appeared a few years ago and at that time she presented with multiple, flat tapped, coalescing pinkish-red papules that were 0.5 to 1 centimeters in diameter. Histopathologic examination revealed the loss of elastic tissue, with fragmentation of the residual elastic fibers in the upper and mid dermis, and the pattern of the dermal collagen was normal. Herein we report on a rare case of nevus anelasticus and we review the relevant literature.
Adolescent
;
Collagen
;
Dermis
;
Elastic Tissue
;
Female
;
Humans
;
Nevus
;
Skin
6.The Four Primitive Reflexes in the Normal Elderly People.
Seung Hwan LEE ; Moon Ho PARK ; Kun Woo PARK ; Chol SHIN ; Sanghoon CHA ; Dae Hie LEE ; Min Kyu PARK
Journal of the Korean Neurological Association 2001;19(4):380-383
BACKGROUND: The primitive reflexes such as palmomental, glabella, snout, nuchocephalic reflexes may appear in a variety of diseases of the central nervous system. In this study, we investigated the frequencies of these primitive reflexes in the healthy elderly Korean population that have never been studied before. METHODS: Randomly selected 103 vol-unteers aged older than 60 years were examined by neurologists with a systemic neurological examination which included primitive reflexes and by radiologists with neuroimaging. Seven subjects were excluded from the study due to abnormal findings in the MRI of one subject and unusual neurological signs in 6 subjects. RESULTS: The overall mean age of the subjects was 66.5 years. One or more of the primitive reflexes were seen in 26 (24.9%) subjects. Eighteen (17.2%) subjects showed the palmomental reflex; eleven (10.5%) subjects showed the glabella reflex; five (4.8%) sub-jects showed the snout reflex; and one (1.0%) subject showed the nuchocephalic reflex. One subject had palmomental, glabella as well as snout reflexes, and five subjects had two primitive reflexes at the same time. CONCLUSIONS: Despite the normal findings from the neurological examinations and neuroimaging, 24.9% of healthy aged people had one or more primitive reflexes. The presence of these primitive reflexes as an isolated phenomenon may not imply brain lesions. (J Korean Neurol Assoc 19(4):380~383, 2001)
Aged*
;
Brain
;
Central Nervous System
;
Humans
;
Magnetic Resonance Imaging
;
Neuroimaging
;
Neurologic Examination
;
Reflex*
7.Aortic Aneurysm Screening in a High-Risk Population: A Non-Contrast Computed Tomography Study in Korean Males with Hypertension.
In Jeong CHO ; Sung Yeol JANG ; Hyuk Jae CHANG ; Sanghoon SHIN ; Chi Young SHIM ; Geu Ru HONG ; Namsik CHUNG
Korean Circulation Journal 2014;44(3):162-169
BACKGROUND AND OBJECTIVES: Screening strategies for aortic aneurysm (AA) according to risk factors and ethnicity are controversial. This study explored the prevalence of AA and determined whether screening is necessary in a population of multiple risk factors. SUBJECTS AND METHODS: From June, 2012 to April, 2013, 542 consecutive elderly (> or =65 years) male hypertensive patients without a history of AA were prospectively enrolled. After excluding 15 patients (2.8%) with aortic valve surgery, 30 patients (5.5%) with suboptimal computed tomography (CT) images, the remaining 496 patients (age 73+/-5 years) comprised the study population. Maximal diameters of the thoracic and abdominal aorta were measured using non-contrast CT. RESULTS: The prevalence of thoracic AA (TAA, diameter > or =40 mm) and abdominal AA (AAA, diameter > or =30 mm) was 36.5% (181/496) and 6.0% (30/496), respectively. In the multivariate logistic regression analysis, determinants for TAA were age {odds ratio (OR) 1.059, 95% confidence interval (CI) 1.018-1.101, p=0.005}, dyslipidemia (OR 0.621, 95% CI 0.418-0.923, p=0.018), body surface area (OR 11.92, 95% CI 2.787-50.97, p=0.001), diastolic blood pressure (OR 1.029, 95% CI 1.009-1.049, p=0.004) and AAA (OR 3.070, 95% CI 1.398-6.754, p=0.005). In contrast, AAA was independently associated with dysplipidemia (OR 2.792, 95% CI 1.091-7.143, p=0.032), current/past smokerfs (OR 4.074, 95% CI 1.160-14.31, p=0.028), and TAA (OR 3.367, 95% CI 1.550-7.313, p=0.002). CONCLUSION: The prevalence of AA was significant and TAA was more prevalent than AAA in elderly Korean males with hypertension. Future research should establish distinct screening strategies for TAA and AAA according to risk factors and ethnicity.
Aged
;
Aneurysm
;
Aorta
;
Aorta, Abdominal
;
Aortic Aneurysm*
;
Aortic Valve
;
Blood Pressure
;
Body Surface Area
;
Dyslipidemias
;
Humans
;
Hypertension*
;
Logistic Models
;
Male
;
Mass Screening*
;
Prevalence
;
Prospective Studies
;
Risk Factors
8.Spontaneous regression of cardiac sarcoidosis resulting in total occlusion of coronary artery and ventricular aneurysm.
Seok Jong RYU ; Yong Kook HONG ; Sanghoon SHIN ; Sungjun CHO ; Se Jung YOON
The Korean Journal of Internal Medicine 2017;32(3):571-572
No abstract available.
Aneurysm*
;
Coronary Vessels*
;
Sarcoidosis*
9.Spontaneous regression of cardiac sarcoidosis resulting in total occlusion of coronary artery and ventricular aneurysm.
Seok Jong RYU ; Yong Kook HONG ; Sanghoon SHIN ; Sungjun CHO ; Se Jung YOON
The Korean Journal of Internal Medicine 2017;32(3):571-572
No abstract available.
Aneurysm*
;
Coronary Vessels*
;
Sarcoidosis*