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  1. Article ; Online: Erratum to: Dose-related effect of statins in patients with endovascular coiling or microsurgical clipping for aneurysmal subarachnoid hemorrhage: updated study-level meta-analysis.

    Choi, Kyu-Sun / Kim, Jae Min / Yi, Hyeong-Joong / Lee, Seon-Heui / Lim, Taeho / Kim, Wonhee / Cho, Youngsuk / Cheong, Jin-Hwan

    European journal of clinical pharmacology

    2017  Volume 73, Issue 9, Page(s) 1083

    Language English
    Publishing date 2017-09
    Publishing country Germany
    Document type Published Erratum
    ZDB-ID 121960-1
    ISSN 1432-1041 ; 0031-6970
    ISSN (online) 1432-1041
    ISSN 0031-6970
    DOI 10.1007/s00228-017-2294-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Toxic epidermal necrolysis induced by lamotrigine treatment in a child.

    Yi, Youngsuk / Lee, Jeong Ho / Suh, Eun Sook

    Korean journal of pediatrics

    2014  Volume 57, Issue 3, Page(s) 153–156

    Abstract: Toxic epidermal necrolysis is an unpredictable and severe adverse drug reaction. In toxic epidermal necrolysis, epidermal damage appears to result from keratinocyte apoptosis. This condition is triggered by many factors, principally drugs such as ... ...

    Abstract Toxic epidermal necrolysis is an unpredictable and severe adverse drug reaction. In toxic epidermal necrolysis, epidermal damage appears to result from keratinocyte apoptosis. This condition is triggered by many factors, principally drugs such as antiepileptic medications, antibiotics (particularly sulfonamide), nonsteroidal anti-inflammatory drugs, allopurinol, and nevirapine. Lamotrigine has been reported potentially cause serious cutaneous reactions, and concomitant use of valproic acid with lamotrigine significantly increases this risk. We describe a case of an 11-year-old girl with tic and major depressive disorders who developed toxic epidermal necrolysis after treatment with lamotrigine, and who was diagnosed both clinically and pathologically. Children are more susceptible to lamotrigine-induced rash than adults, and risk of serious rash can be lessened by strict adherence to dosing guidelines. Unfortunately, in our case, the patient was administered a higher dose than the required regimen. Therefore, clinicians should strictly adhere to the dose regimen when using lamotrigine, especially in children.
    Language English
    Publishing date 2014-03-31
    Publishing country Korea (South)
    Document type Journal Article
    ZDB-ID 2594966-4
    ISSN 2092-7258 ; 1738-1061
    ISSN (online) 2092-7258
    ISSN 1738-1061
    DOI 10.3345/kjp.2014.57.3.153
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Prognostic Value of Echocardiography for Left Ventricular Dysfunction After Aneurysmal Subarachnoid Hemorrhage: A Systematic Review and Meta-Analysis.

    Kim, Wonhee / Choi, Kyu-Sun / Lim, Taeho / Ahn, Chiwon / Cho, Youngsuk / Yi, Hyeong-Joong / Lee, Seon-Heui

    World neurosurgery

    2019  Volume 126, Page(s) e1099–e1111

    Abstract: Objective: Cardiac dysfunction may worsen outcomes after aneurysmal subarachnoid hemorrhage (SAH). This study quantitatively assessed the prognostic value of left ventricular dysfunction with respect to functional outcomes and mortality in patients with ...

    Abstract Objective: Cardiac dysfunction may worsen outcomes after aneurysmal subarachnoid hemorrhage (SAH). This study quantitatively assessed the prognostic value of left ventricular dysfunction with respect to functional outcomes and mortality in patients with aneurysmal SAH.
    Methods: We searched MEDLINE and EMBASE databases to retrieve relevant studies evaluating echocardiographic left ventricular dysfunction following aneurysmal SAH. Fourteen relevant observational studies evaluating 2234 patients were finally included in this study.
    Results: Echocardiographic regional wall motion abnormalities (RWMA) and neurogenic cardiomyopathy (NCM) of the left ventricle occurring after SAH were significantly related to an increase of in-hospital mortality (in 8 studies for RWMA, odds ratio [OR] 2.37; 95% confidence interval [CI] 1.74-3.25 and in 5 studies for NCM, OR 2.82; 95% CI 1.2-6.6). Decreased ejection fraction on echocardiography was not associated with the increase of in-hospital mortality (in 4 studies, OR 1.76; 95% CI 0.86-3.61). The heterogeneities of decreased ejection fraction and NCM were significantly resolved by analyzing only the studies based on echocardiogram measurements obtained within 72 hours after admission.
    Conclusions: The present meta-analysis suggests that the identification of echocardiographic left ventricular dysfunction identified by RWMA and NCM after SAH could provide better prognostic information for in-hospital mortality.
    MeSH term(s) Echocardiography ; Humans ; Observational Studies as Topic ; Prognosis ; Subarachnoid Hemorrhage/complications ; Subarachnoid Hemorrhage/mortality ; Ventricular Dysfunction, Left/diagnosis ; Ventricular Dysfunction, Left/etiology ; Ventricular Dysfunction, Left/mortality
    Language English
    Publishing date 2019-03-14
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Systematic Review
    ZDB-ID 2534351-8
    ISSN 1878-8769 ; 1878-8750
    ISSN (online) 1878-8769
    ISSN 1878-8750
    DOI 10.1016/j.wneu.2019.03.054
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Efficacy and safety of erythropoietin in patients with traumatic brain injury: A systematic review and meta-analysis.

    Lee, Juncheol / Cho, Youngsuk / Choi, Kyu-Sun / Kim, Wonhee / Jang, Bo-Hyoung / Shin, Hyungoo / Ahn, Chiwon / Lim, Tae Ho / Yi, Hyeong-Joong

    The American journal of emergency medicine

    2018  Volume 37, Issue 6, Page(s) 1101–1107

    Abstract: Objective: The purpose of this study was to evaluate the effects of erythropoietin (EPO) on mortality and neurological outcomes in patients with traumatic brain injury (TBI).: Materials and methods: Electronic databases of studies published up to ... ...

    Abstract Objective: The purpose of this study was to evaluate the effects of erythropoietin (EPO) on mortality and neurological outcomes in patients with traumatic brain injury (TBI).
    Materials and methods: Electronic databases of studies published up to January 5, 2017 were searched to retrieve relevant investigations comparing the outcomes of EPO-treated patients and untreated patients following TBI. We calculated the relative risk (RR) of mortality, neurologic outcomes, and deep vein thrombosis (DVT) with corresponding 95% confidence interval (CI) using meta-analysis.
    Results: Six randomized controlled clinical trials met the eligibility criteria. In total, 1041 patients were included among the studies. EPO was found to significantly reduce the occurrence of mortality (RR 0.68 [95% CI 0.50-0.95]; P = 0.02), but did not significantly reduce poor functional outcome (RR 1.22 [95% CI 0.82-1.81]; P = 0.33). There were no significant differences in the occurrence of complications, such as DVT, between the treatment groups (RR -0.02 [95% CI -0.06-0.02]; P = 0.81).
    Conclusions: Results of the present meta-analysis suggest that the use of EPO may prevent death following TBI without causing adverse events, such as deep vein thrombosis. However, the role of EPO in improving neurological outcome(s) remains unclear. Further well-designed, randomized controlled trials using modified protocols and involving specific patient populations are required to clarify this issue, and to verify the findings.
    MeSH term(s) Humans ; Age Factors ; Brain Injuries, Traumatic/drug therapy ; Chi-Square Distribution ; Erythropoietin/pharmacology ; Erythropoietin/standards ; Erythropoietin/therapeutic use ; Randomized Controlled Trials as Topic/statistics & numerical data
    Chemical Substances Erythropoietin (11096-26-7)
    Language English
    Publishing date 2018-08-29
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Systematic Review
    ZDB-ID 605890-5
    ISSN 1532-8171 ; 0735-6757
    ISSN (online) 1532-8171
    ISSN 0735-6757
    DOI 10.1016/j.ajem.2018.08.072
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Prognostic role of copeptin after traumatic brain injury: A systematic review and meta-analysis of observational studies.

    Choi, Kyu-Sun / Cho, Youngsuk / Jang, Bo-Hyoung / Kim, Wonhee / Ahn, Chiwon / Lim, Tae Ho / Yi, Hyoung-Joong

    The American journal of emergency medicine

    2017  Volume 35, Issue 10, Page(s) 1444–1450

    Abstract: Purpose: Copeptin, the C-terminal portion of provasopressin, has emerged as a novel prognostic marker in neurocritical care, such as in traumatic brain injury (TBI). The aim of this study was to quantitatively assess the prognostic significance of ... ...

    Abstract Purpose: Copeptin, the C-terminal portion of provasopressin, has emerged as a novel prognostic marker in neurocritical care, such as in traumatic brain injury (TBI). The aim of this study was to quantitatively assess the prognostic significance of initial plasma copeptin levels in the neurological outcome and mortality after traumatic brain injury.
    Materials and methods: Six relevant studies with data from 552 patients were included in this meta-analysis.
    Results: The plasma copeptin levels were found to be significantly higher in patients who died than in the survivors (standardized mean difference [SMD], 1.80). In the four studies reporting Glasgow outcome scale (GOS) data, patients with unfavorable outcomes had significantly higher copeptin levels than those with favorable outcomes (SMD, 1.62). The plasma copeptin level predicted mortality and unfavorable outcomes (AUC, 0.873; AUC, 0.876).
    Conclusions: The present meta-analysis suggests that early measurement of plasma copeptin levels can provide better prognostic information about the functional outcome and mortality in patients with TBI.
    MeSH term(s) Biomarkers/blood ; Brain Injuries, Traumatic/blood ; Brain Injuries, Traumatic/diagnosis ; Brain Injuries, Traumatic/mortality ; Glycopeptides/blood ; Humans ; Prognosis
    Chemical Substances Biomarkers ; Glycopeptides ; copeptins
    Language English
    Publishing date 2017-04-19
    Publishing country United States
    Document type Journal Article ; Meta-Analysis ; Review ; Systematic Review
    ZDB-ID 605890-5
    ISSN 1532-8171 ; 0735-6757
    ISSN (online) 1532-8171
    ISSN 0735-6757
    DOI 10.1016/j.ajem.2017.04.038
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Dose-related effect of statins in patients with endovascular coiling or microsurgical clipping for aneurysmal subarachnoid hemorrhage: updated study-level meta-analysis.

    Choi, Kyu-Sun / Kim, Jae Min / Yi, Hyeong-Joong / Lee, Seon-Heui / Lim, Taeho / Kim, Wonhee / Cho, Youngsuk / Cheong, Jin-Hwan

    European journal of clinical pharmacology

    2017  Volume 73, Issue 9, Page(s) 1071–1081

    Abstract: Purpose: We aimed to quantitatively assess the effects of short-term statin use on delayed ischemic neurologic deficits (DINDs) and clinical outcomes in patients with aneurysmal subarachnoid hemorrhage (SAH) through a meta-analysis of the available ... ...

    Abstract Purpose: We aimed to quantitatively assess the effects of short-term statin use on delayed ischemic neurologic deficits (DINDs) and clinical outcomes in patients with aneurysmal subarachnoid hemorrhage (SAH) through a meta-analysis of the available evidence.
    Methods: We searched the electronic databases up to April 8, 2016 to retrieve relevant studies comparing the outcomes between immediate statin-treated in statin-naïve patients and untreated patients following aneurysmal SAH. Meta-analysis was performed using Review Manager 5.3.
    Results: Eight randomized controlled clinical trials (RCTs) and 5 observational studies involving 2148 patients met the eligibility criteria. In the RCTs, statins were found to significantly reduce the occurrence of DINDs (relative risk (RR), 0.76; 95% confidence interval (CI), 0.61-0.94; P = 0.01), but did not significantly reduce poor functional outcomes (RR, 1.01; 95% CI, 0.87-1.16; P = 0.93) or mortality (RR, 0.80; 95% CI, 0.58-1.11; P = 0.18). In observational studies, statin use was not associated with any reduction in DINDs, poor outcome, or mortality. Meta-analysis of RCTs indicated a significant reduction in DINDs and mortality in patients with high-dose statin use (RR, 0.63; 95% CI, 0.42-0.95; P = 0.03; I
    Conclusion: The present meta-analysis suggests that statin use may prevent DINDs in patients with aneurysmal SAH. Based on our findings, the role of statins in improving neurological outcome was limited. However, the risk of DINDs and mortality decreased with higher statin doses in a dose-dependent manner. Hence, further well-designed RCTs with modified protocols in specific patients are required.
    Language English
    Publishing date 2017-09
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 121960-1
    ISSN 1432-1041 ; 0031-6970
    ISSN (online) 1432-1041
    ISSN 0031-6970
    DOI 10.1007/s00228-017-2221-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: Current advances in retroviral gene therapy.

    Yi, Youngsuk / Noh, Moon Jong / Lee, Kwan Hee

    Current gene therapy

    2011  Volume 11, Issue 3, Page(s) 218–228

    Abstract: There have been major changes since the incidents of leukemia development in X-SCID patients after the treatments using retroviral gene therapy. Due to the risk of oncogenesis caused by retroviral insertional activation of host genes, most of the efforts ...

    Abstract There have been major changes since the incidents of leukemia development in X-SCID patients after the treatments using retroviral gene therapy. Due to the risk of oncogenesis caused by retroviral insertional activation of host genes, most of the efforts focused on the lentiviral therapies. However, a relative clonal dominance was detected in a patient with β-thalassemia Major, two years after the subject received genetically modified hematopoietic stem cells using lentiviral vectors. This disappointing result of the recent clinical trial using lentiviral vector tells us that the current and most advanced vector systems does not have enough safety. In this review, various safety features that have been tried for the retroviral gene therapy are introduced and the possible new ways of improvements are discussed. Additional feature of chromatin insulators, co-transduction of a suicidal gene under the control of an inducible promoter, conditional expression of the transgene only in appropriate target cells, targeted transduction, cell type-specific expression, targeted local administration, splitting of the viral genome, and site specific insertion of retroviral vector are discussed here.
    MeSH term(s) Chromatin/metabolism ; Genes, Transgenic, Suicide/genetics ; Genetic Therapy/methods ; Genetic Therapy/trends ; Genetic Vectors/genetics ; Humans ; Mutagenesis, Insertional ; Retroviridae/genetics ; beta-Thalassemia/genetics ; beta-Thalassemia/therapy
    Chemical Substances Chromatin
    Language English
    Publishing date 2011-05-09
    Publishing country United Arab Emirates
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review
    ZDB-ID 2146187-9
    ISSN 1875-5631 ; 1566-5232
    ISSN (online) 1875-5631
    ISSN 1566-5232
    DOI 10.2174/156652311795684740
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Retention of cardiopulmonary resuscitation skills after hands-only training versus conventional training in novices: a randomized controlled trial.

    Kim, Young Joon / Cho, Youngsuk / Cho, Gyu Chong / Ji, Hyun Kyung / Han, Song Yi / Lee, Jin Hyuck

    Clinical and experimental emergency medicine

    2017  Volume 4, Issue 2, Page(s) 88–93

    Abstract: Objective: Cardiopulmonary resuscitation (CPR) training can improve performance during simulated cardiac arrest; however, retention of skills after training remains uncertain. Recently, hands-only CPR has been shown to be as effective as conventional ... ...

    Abstract Objective: Cardiopulmonary resuscitation (CPR) training can improve performance during simulated cardiac arrest; however, retention of skills after training remains uncertain. Recently, hands-only CPR has been shown to be as effective as conventional CPR. The purpose of this study is to compare the retention rate of CPR skills in laypersons after hands-only or conventional CPR training.
    Methods: Participants were randomly assigned to 1 of 2 CPR training methods: 80 minutes of hands-only CPR training or 180 minutes of conventional CPR training. Each participant's CPR skills were evaluated at the end of training and 3 months thereafter using the Resusci Anne manikin with a skill-reporting software.
    Results: In total, 252 participants completed training; there were 125 in the hands-only CPR group and 127 in the conventional CPR group. After 3 months, 118 participants were randomly selected to complete a post-training test. The hands-only CPR group showed a significant decrease in average compression rate (P=0.015), average compression depth (P=0.031), and proportion of adequate compression depth (P=0.011). In contrast, there was no difference in the skills of the conventional CPR group after 3 months.
    Conclusion: Conventional CPR training appears to be more effective for the retention of chest compression skills than hands-only CPR training; however, the retention of artificial ventilation skills after conventional CPR training is poor.
    Language English
    Publishing date 2017-06-30
    Publishing country Korea (South)
    Document type Journal Article
    ISSN 2383-4625
    ISSN 2383-4625
    DOI 10.15441/ceem.16.175
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Short poly(A) tails are protected from deadenylation by the LARP1-PABP complex.

    Park, Joha / Kim, Myeonghwan / Yi, Hyerim / Baeg, Kyungmin / Choi, Yongkuk / Lee, Young-Suk / Lim, Jaechul / Kim, V Narry

    Nature structural & molecular biology

    2023  Volume 30, Issue 3, Page(s) 330–338

    Abstract: Deadenylation generally constitutes the first and pivotal step in eukaryotic messenger RNA decay. Despite its importance in posttranscriptional regulations, the kinetics of deadenylation and its regulation remain largely unexplored. Here we identify La ... ...

    Abstract Deadenylation generally constitutes the first and pivotal step in eukaryotic messenger RNA decay. Despite its importance in posttranscriptional regulations, the kinetics of deadenylation and its regulation remain largely unexplored. Here we identify La ribonucleoprotein 1, translational regulator (LARP1) as a general decelerator of deadenylation, which acts mainly in the 30-60-nucleotide (nt) poly(A) length window. We measured the steady-state and pulse-chased distribution of poly(A)-tail length, and found that deadenylation slows down in the 30-60-nt range. LARP1 associates preferentially with short tails and its depletion results in accelerated deadenylation specifically in the 30-60-nt range. Consistently, LARP1 knockdown leads to a global reduction of messenger RNA abundance. LARP1 interferes with the CCR4-NOT-mediated deadenylation in vitro by forming a ternary complex with poly(A)-binding protein (PABP) and poly(A). Together, our work reveals a dynamic nature of deadenylation kinetics and a role of LARP1 as a poly(A) length-specific barricade that creates a threshold for deadenylation.
    MeSH term(s) Exoribonucleases/metabolism ; RNA-Binding Proteins/metabolism ; Poly(A)-Binding Proteins/genetics ; Gene Expression Regulation ; RNA, Messenger/genetics ; RNA, Messenger/metabolism ; Poly A/metabolism
    Chemical Substances Exoribonucleases (EC 3.1.-) ; RNA-Binding Proteins ; Poly(A)-Binding Proteins ; RNA, Messenger ; Poly A (24937-83-5)
    Language English
    Publishing date 2023-02-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2126708-X
    ISSN 1545-9985 ; 1545-9993
    ISSN (online) 1545-9985
    ISSN 1545-9993
    DOI 10.1038/s41594-023-00930-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Retroviral gene therapy: safety issues and possible solutions.

    Yi, Youngsuk / Hahm, Sung Ho / Lee, Kwan Hee

    Current gene therapy

    2004  Volume 5, Issue 1, Page(s) 25–35

    Abstract: The recent incidents of leukemia development in X-SCID patients after a successful treatment of the disease with retroviral gene therapy raised concerns regarding the safety of the use of retroviral vectors in clinical gene therapy. In this review, we ... ...

    Abstract The recent incidents of leukemia development in X-SCID patients after a successful treatment of the disease with retroviral gene therapy raised concerns regarding the safety of the use of retroviral vectors in clinical gene therapy. In this review, we have tried to re-evaluate the safety issues related to the use of retroviral vectors in human clinical trials and to suggest possible appropriate solutions to the issues. As revealed by the X-SCID incident, oncogenesis caused by retroviral insertional activation of host genes is one of the most prominent risks. An ultimate solution to this problem will be in re-engineering retroviral vectors so that the retroviral insertion takes place only at the desired specific sites of the host cell chromosome. This is, however, a technically demanding tasks, and it will take years to develop retroviral vectors with targeted insertion capability. In the mean time, the use of chromatin insulators can reduce chances for retrovirus-mediated oncogenesis by inhibiting non-specific activation of nearby cellular proto-oncogenes. Co-transduction of a suicidal gene under the control of an inducible promoter could also be one of the important safety features, since destruction of transduced cells can be triggered if abnormal growth is observed. Additionally, conditional expression of the transgene only in appropriate target cells via the combination of targeted transduction, cell type-specific expression, and targeted local administration will increase the overall safety of the retroviral systems. Finally, splitting of the viral genome, use of self-inactivating (SIN) retroviral vectors, or complete removal of the coding sequences for gag, pol, and env genes is desirable to virtually eliminate the possibility of generation of replication competent retroviruses (RCR).
    MeSH term(s) Gene Transfer Techniques ; Genetic Therapy/methods ; Genetic Vectors ; Humans ; Retroviridae/genetics ; Safety
    Language English
    Publishing date 2004-12-27
    Publishing country United Arab Emirates
    Document type Journal Article ; Review
    ZDB-ID 2146187-9
    ISSN 1566-5232
    ISSN 1566-5232
    DOI 10.2174/1566523052997514
    Database MEDical Literature Analysis and Retrieval System OnLINE

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