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  1. Article ; Online: Presence of anti-Ro/SSA antibody may be associated with anti-aquaporin-4 antibody positivity in neuromyelitis optica spectrum disorder.

    Park, Jae-Hyun / Hwang, Jaechun / Min, Ju-Hong / Kim, Byoung Joon / Kang, Eun-Suk / Lee, Kwang Ho

    Journal of the neurological sciences

    2015  Volume 348, Issue 1-2, Page(s) 132–135

    Abstract: ... syndrome and anti-Ro/SSA antibody (SSA-Ab) positivity in Asian populations.: Objective: We evaluated ... the clinical significance of anti-Ro/SSA antibody positivity in patients with NMO spectrum disorder (NMOSD ...

    Abstract Background: Neuromyelitis optica (NMO) is often associated with systemic autoimmune diseases or serological markers of non-organ-specific autoimmunity, and has been most frequently associated with Sjögren's syndrome and anti-Ro/SSA antibody (SSA-Ab) positivity in Asian populations.
    Objective: We evaluated the clinical significance of anti-Ro/SSA antibody positivity in patients with NMO spectrum disorder (NMOSD).
    Methods: We retrospectively collected data from 106 consecutive patients with NMOSD and reviewed clinical features and laboratory findings. All patients underwent tests for SSA-Ab and anti-aquaporin-4 antibody (AQP4-Ab) using cell-based indirect immunofluorescence assays.
    Results: Among 106 patients, 20 (18.9%) were positive for SSA-Ab. Of 48 AQP4-Ab-positive patients, 18 (37.5%) had SSA-Ab. AQP4-Ab seropositivity was 90.0% in patients positive for SSA-Ab, and 32.6% in patients without SSA-Ab (p<0.001). Presence of SSA-Ab was associated with systemic autoimmune diseases, including Sjögren's syndrome (p<0.001) and systemic lupus erythematosus (p=0.003), and with the presence of non-organ-specific autoantibodies such as anti-nuclear antibody and anti-dsDNA antibody in patients with NMOSD, but was not associated with annualized relapse rate or final Expanded Disability Status Scale score independent of AQP4-Ab positivity.
    Conclusion: We found that the presence of SSA-Ab was highly associated with seropositivity for AQP4-Ab in patients with NMOSD.
    MeSH term(s) Adult ; Antibodies, Antinuclear/blood ; Aquaporin 4/immunology ; Autoantibodies/blood ; Female ; Humans ; Lupus Erythematosus, Systemic/immunology ; Male ; Middle Aged ; Neuromyelitis Optica/immunology ; Sjogren's Syndrome/immunology
    Chemical Substances AQP4 protein, human ; Antibodies, Antinuclear ; Aquaporin 4 ; Autoantibodies ; SS-A antibodies
    Language English
    Publishing date 2015-01-15
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 80160-4
    ISSN 1878-5883 ; 0022-510X ; 0374-8642
    ISSN (online) 1878-5883
    ISSN 0022-510X ; 0374-8642
    DOI 10.1016/j.jns.2014.11.020
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book: Chŭngnye ro pon chŏngsin hanŭihak

    Hwang, Ŭi-wan / Kim, Chong-u

    2006  

    Title variant Neuropsychiatry in Oriental medicine and Qi ; Chŏngsin hanŭihak
    Author's details Hwang Ŭi-wan, Kim Chong-u kongjŏ
    MeSH term(s) Mental Disorders/therapy ; Medicine, East Asian Traditional ; Nervous System Diseases/therapy
    Language Korean
    Size 281 p. :, ill. ;, 23 cm.
    Edition 1-pʻan.
    Publisher Chimmundang
    Publishing place Kyŏnggi-do Pʻaju-si
    Document type Book
    Note Includes index.
    ISBN 8930312756 ; 9788930312752
    Database Catalogue of the US National Library of Medicine (NLM)

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  3. Article: Tertiary treatment of biologically treated piggery wastewater using vibratory shear-enhanced RO membrane.

    Lee, J / Kim, S / Choi, J / Hwang, H / Cha, M / Kim, J

    Water science and technology : a journal of the International Association on Water Pollution Research

    2004  Volume 49, Issue 5-6, Page(s) 435–442

    Abstract: ... wastewater using vibratory shear enhanced RO membrane (VSEP RO). Through a simple process combination ... utilizing Bioceramic SBR(BCS) and VSEP RO, at Gimhae plant livestock wastewater is treated excellently ... to meet the strict effluent standards. Application of RO membrane directly to the biologically treated ...

    Abstract This study presents a good example for the tertiary treatment of biologically treated piggery wastewater using vibratory shear enhanced RO membrane (VSEP RO). Through a simple process combination, utilizing Bioceramic SBR(BCS) and VSEP RO, at Gimhae plant livestock wastewater is treated excellently to meet the strict effluent standards. Application of RO membrane directly to the biologically treated effluent has been successful without any pretreatment to reduce high suspended solids. The combination of VESP UF followed by RO filtration processes produced a higher recovery rate in the 3-week pilot test.
    MeSH term(s) Animals ; Bioreactors ; Ceramics ; Filtration ; Manure ; Mechanics ; Membranes, Artificial ; Osmosis ; Oxygen/metabolism ; Swine ; Vibration ; Waste Disposal, Fluid/methods
    Chemical Substances Manure ; Membranes, Artificial ; Oxygen (S88TT14065)
    Language English
    Publishing date 2004
    Publishing country England
    Document type Journal Article
    ZDB-ID 764273-8
    ISSN 1996-9732 ; 0273-1223
    ISSN (online) 1996-9732
    ISSN 0273-1223
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Targeted Delivery of Erythropoietin Hybridized with Magnetic Nanocarriers for the Treatment of Central Nervous System Injury

    Hwang CH

    International Journal of Nanomedicine, Vol Volume 15, Pp 9683-

    A Literature Review

    2020  Volume 9701

    Abstract: ... Sejong Hospital, Chungnam National University, College of Medicine, 30099, 20, Bodeum 7-Ro, Sejong ... Chang Ho Hwang Department of Physical and Rehabilitation Medicine, Chungnam National University ...

    Abstract Chang Ho Hwang Department of Physical and Rehabilitation Medicine, Chungnam National University Sejong Hospital, Chungnam National University College of Medicine, Sejong, Republic of KoreaCorrespondence: Chang Ho HwangDepartment of Physical and Rehabilitation Medicine, Chungnam National University Sejong Hospital, Chungnam National University, College of Medicine, 30099, 20, Bodeum 7-Ro, Sejong, Republic of KoreaTel + 82-44-995-4715Fax +82-44-995-2461Email chhwang1220@cnu.ac.krAbstract: Although the incidence of central nervous system injuries has continued to rise, no promising treatments have been elucidated. Erythropoietin plays an important role in neuroprotection and neuroregeneration as well as in erythropoiesis. Moreover, the current worldwide use of erythropoietin in the treatment of hematologic diseases allows for its ready application in patients with central nervous system injuries. However, erythropoietin has a very short therapeutic time window (within 6– 8 hours) after injury, and it has both hematopoietic and nonhematopoietic receptors, which exhibit heterogenic and phylogenetic differences. These differences lead to limited amounts of erythropoietin binding to in situ erythropoietin receptors. The lack of high-quality evidence for clinical use and the promising results of in vitro/in vivo models necessitate fast targeted delivery agents such as nanocarriers. Among current nanocarriers, noncovalent polymer-entrapping or polymer-adsorbing erythropoietin obtained by nanospray drying may be the most promising. With the incorporation of magnetic nanocarriers into an erythropoietin polymer, spatiotemporal external magnetic navigation is another area of great interest for targeted delivery within the therapeutic time window. Intravenous administration is the most readily used route. Manufactured erythropoietin nanocarriers should be clearly characterized using bioengineering analyses of the in vivo size distribution and the quality of entrapment or adsorption. Further preclinical trials are required to ...
    Keywords erythropoietin ; nanoparticles ; polymers ; magnetics ; central nervous system ; regeneration ; Medicine (General) ; R5-920
    Language English
    Publishing date 2020-12-01T00:00:00Z
    Publisher Dove Medical Press
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Dysfunction of NMDA receptors in neuronal models of an autism spectrum disorder patient with a DSCAM mutation and in Dscam-knockout mice.

    Lim, Chae-Seok / Kim, Min Jung / Choi, Ja Eun / Islam, Md Ariful / Lee, You-Kyung / Xiong, Yinyi / Shim, Kyu-Won / Yang, Jung-Eun / Lee, Ro Un / Lee, Jiah / Park, Pojeong / Kwak, Ji-Hye / Seo, Hyunhyo / Kim, Chul Hoon / Lee, Jae-Hyung / Lee, Yong-Seok / Hwang, Su-Kyeong / Lee, Kyungmin / Lee, Jin-A /
    Kaang, Bong-Kiun

    Molecular psychiatry

    2021  Volume 26, Issue 12, Page(s) 7538–7549

    Abstract: Heterogeneity in the etiopathology of autism spectrum disorders (ASD) limits the development of generic remedies, requires individualistic and patient-specific research. Recent progress in human-induced pluripotent stem cell (iPSC) technology provides a ... ...

    Abstract Heterogeneity in the etiopathology of autism spectrum disorders (ASD) limits the development of generic remedies, requires individualistic and patient-specific research. Recent progress in human-induced pluripotent stem cell (iPSC) technology provides a novel platform for modeling ASDs for studying complex neuronal phenotypes. In this study, we generated telencephalic induced neuronal (iN) cells from iPSCs derived from an ASD patient with a heterozygous point mutation in the DSCAM gene. The mRNA of DSCAM and the density of DSCAM in dendrites were significantly decreased in ASD compared to control iN cells. RNA sequencing analysis revealed that several synaptic function-related genes including NMDA receptor subunits were downregulated in ASD iN cells. Moreover, NMDA receptor (R)-mediated currents were significantly reduced in ASD compared to control iN cells. Normal NMDA-R-mediated current levels were rescued by expressing wild-type DSCAM in ASD iN cells, and reduced currents were observed by truncated DSCAM expression in control iN cells. shRNA-mediated DSCAM knockdown in control iN cells resulted in the downregulation of an NMDA-R subunit, which was rescued by the overexpression of shRNA-resistant DSCAM. Furthermore, DSCAM was co-localized with NMDA-R components in the dendritic spines of iN cells whereas their co-localizations were significantly reduced in ASD iN cells. Levels of phospho-ERK1/2 were significantly lower in ASD iN cells, suggesting a potential mechanism. A neural stem cell-specific Dscam heterozygous knockout mouse model, showing deficits in social interaction and social memory with reduced NMDA-R currents. These data suggest that DSCAM mutation causes pathological symptoms of ASD by dysregulating NMDA-R function.
    MeSH term(s) Animals ; Autism Spectrum Disorder/metabolism ; Cell Adhesion Molecules/genetics ; Humans ; Mice ; Mice, Knockout ; Mutation/genetics ; Neurons/metabolism ; Receptors, N-Methyl-D-Aspartate/genetics ; Receptors, N-Methyl-D-Aspartate/metabolism
    Chemical Substances Cell Adhesion Molecules ; DSCAM protein, human ; Dscam protein, mouse ; Receptors, N-Methyl-D-Aspartate
    Language English
    Publishing date 2021-07-12
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1330655-8
    ISSN 1476-5578 ; 1359-4184
    ISSN (online) 1476-5578
    ISSN 1359-4184
    DOI 10.1038/s41380-021-01216-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Comparison of the association intensity of creatinine and cystatin C with hyperphosphatemia and hyperparathyroidism in patients with chronic kidney disease.

    Min, Byungju / Yun, Sung-Ro / Yoon, Se-Hee / Kim, Jong-Dai / Hwang, Wan Jin / Hwang, Won Min / Park, Yohan

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 3855

    Abstract: Herein, we compared the association intensity of estimated glomerular filtration rate (eGFR) equations using creatinine (Cr) or cystatin C (CysC) with hyperphosphatemia and secondary hyperparathyroidism occurrence, which reflect the physiological changes ...

    Abstract Herein, we compared the association intensity of estimated glomerular filtration rate (eGFR) equations using creatinine (Cr) or cystatin C (CysC) with hyperphosphatemia and secondary hyperparathyroidism occurrence, which reflect the physiological changes occurring during chronic kidney disease (CKD) progression. This study included 639 patients treated between January 2019 and February 2022. The patients were divided into low- and high-difference groups based on the median value of the difference between the Cr-based eGFR (eGFR
    MeSH term(s) Humans ; Aged ; Cystatin C ; Creatinine ; Hyperphosphatemia/complications ; Glomerular Filtration Rate/physiology ; Renal Insufficiency, Chronic ; Hyperparathyroidism, Secondary/complications
    Chemical Substances Cystatin C ; Creatinine (AYI8EX34EU)
    Language English
    Publishing date 2023-03-08
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-31048-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Spatiotemporal Analysis of Out-of-Hospital Cardiac Arrest Incidence and Survival Outcomes in Korea (2009-2021).

    Lee, Naae / Jung, Seungpil / Ro, Young Sun / Park, Jeong Ho / Hwang, Seung-Sik

    Journal of Korean medical science

    2024  Volume 39, Issue 9, Page(s) e86

    Abstract: Background: Out-of-hospital cardiac arrest is a major public health concern in Korea. Identifying spatiotemporal patterns of out-of-hospital cardiac arrest incidence and survival outcomes is crucial for effective resource allocation and targeted ... ...

    Abstract Background: Out-of-hospital cardiac arrest is a major public health concern in Korea. Identifying spatiotemporal patterns of out-of-hospital cardiac arrest incidence and survival outcomes is crucial for effective resource allocation and targeted interventions. Thus, this study aimed to investigate the spatiotemporal epidemiology of out-of-hospital cardiac arrest in Korea, with a focus on identifying high-risk areas and populations and examining factors associated with prehospital outcomes.
    Methods: We conducted this population-based observational study using data from the Korean out-of-hospital cardiac arrest registry from January 2009 to December 2021. Using a Bayesian spatiotemporal model based on the Integrated Nested Laplace Approximation, we calculated the standardized incidence ratio and assessed the relative risk to compare the spatial and temporal distributions over time. The primary outcome was out-of-hospital cardiac arrest incidence, and the secondary outcomes included prehospital return of spontaneous circulation, survival to hospital admission and discharge, and good neurological outcomes.
    Results: Although the number of cases increased over time, the spatiotemporal analysis exhibited a discernible temporal pattern in the standardized incidence ratio of out-of-hospital cardiac arrest with a gradual decline over time (1.07; 95% credible interval [CrI], 1.04-1.09 in 2009 vs. 1.00; 95% CrI, 0.98-1.03 in 2021). The district-specific risk ratios of survival outcomes were more favorable in the metropolitan and major metropolitan areas. In particular, the neurological outcomes were significantly improved from relative risk 0.35 (0.31-0.39) in 2009 to 1.75 (1.65-1.86) in 2021.
    Conclusion: This study emphasized the significance of small-area analyses in identifying high-risk regions and populations using spatiotemporal analyses. These findings have implications for public health planning efforts to alleviate the burden of out-of-hospital cardiac arrest in Korea.
    MeSH term(s) Humans ; Cardiopulmonary Resuscitation ; Emergency Medical Services ; Out-of-Hospital Cardiac Arrest/epidemiology ; Incidence ; Bayes Theorem ; Spatio-Temporal Analysis ; Republic of Korea/epidemiology ; Survival Analysis
    Language English
    Publishing date 2024-03-11
    Publishing country Korea (South)
    Document type Observational Study ; Journal Article
    ZDB-ID 639262-3
    ISSN 1598-6357 ; 1011-8934
    ISSN (online) 1598-6357
    ISSN 1011-8934
    DOI 10.3346/jkms.2024.39.e86
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: The risk of pediatric cardiovascular diseases in offspring born to mothers with systemic lupus erythematosus: a nationwide study.

    Cha, Jong Ho / Hwang, Jae Kyoon / Choi, Young-Jin / Na, Jae Yoon

    Frontiers in pediatrics

    2023  Volume 11, Page(s) 1294823

    Abstract: ... affecting women, has been linked to various complications during pregnancy. The transfer of anti-Ro/SSA ...

    Abstract Background: Systemic lupus erythematosus (SLE), a common autoimmune disease predominantly affecting women, has been linked to various complications during pregnancy. The transfer of anti-Ro/SSA antibodies from SLE-affected mothers to their offspring can lead to neonatal lupus and cardiac issues. This study investigated the association between maternal SLE and the risk of pediatric cardiovascular disorders.
    Methods: The study utilized South Korea's National Health Insurance Service (NHIS) database, covering 3,505,737 children born between 2007 and 2017 and tracked until 2020. Maternal SLE cases were identified using the World Health Organization's International Classification of Diseases Tenth revision (ICD-10) codes and linked with delivery records. Cardiologic disorders were categorized into congenital heart disease (CHD), arrhythmic disorders, and acquired heart disease. Propensity score matching with 1:4 ratios was applied to the set control group.
    Results: Among 3,505,737 children, 0.7% (
    Conclusions: Maternal SLE is associated with congenital and acquired cardiac disorders in offspring, including structural, arrhythmic, and MCLS. This study highlights the need for continuous cardiovascular monitoring from the prenatal stage to preadolescence in these children due to multifactorial influences involving maternal autoantibodies, genetic predisposition, and environmental factors.
    Language English
    Publishing date 2023-12-05
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711999-3
    ISSN 2296-2360
    ISSN 2296-2360
    DOI 10.3389/fped.2023.1294823
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Transformed cells maintain survival by downregulating autophagy at a high cell confluency.

    Kim, Hye-Gyo / Ro, Myeong-Han / Hwang, Sung-Hee / Lee, Michael

    Journal of cellular physiology

    2023  Volume 238, Issue 10, Page(s) 2468–2480

    Abstract: Autophagy plays a dual role in tumorigenesis by functioning as both a tumor suppressor and promoter, depending on the stage of tumorigenesis. However, it is still unclear at what stage the role of autophagy changes during tumorigenesis. Herein, we ... ...

    Abstract Autophagy plays a dual role in tumorigenesis by functioning as both a tumor suppressor and promoter, depending on the stage of tumorigenesis. However, it is still unclear at what stage the role of autophagy changes during tumorigenesis. Herein, we investigated the differences in the basal levels and roles of autophagy in five cell lines at different stages of cell transformation. We found that cell lines at higher transformation stages were more sensitive to the autophagy inhibitors, suggesting that autophagy plays a more important role as the transformation progresses. Our ptfLC3 imaging analysis to measure Atg5/LC3-dependent autophagy showed increased autophagic flux in transformed cells compared to untransformed cells. However, the Cyto-ID analysis, which measures Atg5-dependent and -independent autophagic flux, showed high levels of autophagosome formation not only in the transformed cells but also in the initiated cell and Atg5 KO cell line. These results indicate that Atg5-independent autophagy may be more critical in initiated and transformed cell lines than in untransformed cells. Specially, we observed that transformed cells maintained relatively high basal autophagy levels under rapidly proliferating conditions but exhibited much lower basal autophagy levels at high confluency; however, autophagic flux was not significantly reduced in untransformed cells, even at high confluency. In addition, when continuously cultured for 3 weeks without passage, senescent cells were significantly less sensitive to autophagy inhibition than their actively proliferating counterparts. These results imply that once a cell has switched from a proliferative state to a senescent state, the inhibition of autophagy has only a minimal effect. Taken together, our results suggest that autophagy can be differentially regulated in cells at different stages of tumorigenesis under stressful conditions.
    Language English
    Publishing date 2023-08-11
    Publishing country United States
    Document type Journal Article
    ZDB-ID 3116-1
    ISSN 1097-4652 ; 0021-9541
    ISSN (online) 1097-4652
    ISSN 0021-9541
    DOI 10.1002/jcp.31098
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Circulating Vitamin D Level and Risk of Sudden Cardiac Death and Cardiovascular Mortality: A Dose-Response Meta-Analysis of Prospective Studies.

    Kong, So Yeon / Jung, Eujene / Hwang, Seung-Sik / Ro, Young Sun / Shin, Sang Do / Cha, Kyoung-Chul / Hwang, Sung Oh

    Journal of Korean medical science

    2023  Volume 38, Issue 33, Page(s) e260

    Abstract: Background: We conducted a comprehensive meta-analysis of prospective cohort studies to analyze the effect of circulating vitamin D level on the risk of sudden cardiac death (SCD) and cardiovascular disease (CVD) mortality.: Methods: Prospective ... ...

    Abstract Background: We conducted a comprehensive meta-analysis of prospective cohort studies to analyze the effect of circulating vitamin D level on the risk of sudden cardiac death (SCD) and cardiovascular disease (CVD) mortality.
    Methods: Prospective cohort studies evaluating the association between circulating vitamin D and risk of SCD and CVD mortality were systematically searched in the PubMed and Embase. Extracted data were analyzed using a random effects model and results were expressed in terms of hazard ratio (HR) and 95% confidence interval (CI). Restricted cubic spline analysis was used to estimate the dose-response relationships.
    Results: Of the 1,321 records identified using the search strategy, a total of 19 cohort studies were included in the final meta-analysis. The pooled estimate of HR (95% CI) for low vs. high circulating vitamin D level was 1.75 (1.49-2.06) with I² value of 30.4%. In subgroup analysis, strong effects of circulating vitamin D were observed in healthy general population (pooled HR, 1.84; 95% CI, 1.43-2.38) and the clinical endpoint of SCD (pooled HRs, 2.68; 95% CI, 1.48-4.83). The dose-response analysis at the reference level of < 50 nmol/L showed a significant negative association between circulating vitamin D and risk of SCD and CVD mortality.
    Conclusion: Our meta-analysis of prospective cohort studies showed that lower circulating vitamin D level significantly increased the risk of SCD and CVD mortality.
    MeSH term(s) Humans ; Vitamin D ; Prospective Studies ; Death, Sudden, Cardiac/epidemiology ; Death, Sudden, Cardiac/etiology ; Health Status ; PubMed
    Chemical Substances Vitamin D (1406-16-2)
    Language English
    Publishing date 2023-08-21
    Publishing country Korea (South)
    Document type Meta-Analysis ; Systematic Review ; Journal Article
    ZDB-ID 639262-3
    ISSN 1598-6357 ; 1011-8934
    ISSN (online) 1598-6357
    ISSN 1011-8934
    DOI 10.3346/jkms.2023.38.e260
    Database MEDical Literature Analysis and Retrieval System OnLINE

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