1.Malignant Transformation of Meningioma With TERT Promoter Mutation: A Case Report
Yoontae HONG ; Nayoung HAN ; Ho-Shin GWAK
Brain Tumor Research and Treatment 2024;12(3):192-199
High-grade meningiomas make up a relatively minor proportion of meningiomas, which are one of the most common types of primary intracranial tumors in adults. Though rare, a considerable portion of highgrade meningiomas arise from malignant transformation of benign meningiomas. The 2021 World Health Organization (WHO) classification criteria introduced molecular markers in the diagnosis and grading of central nervous system (CNS) tumors and assigned certain genomic mutations to grade 3 meningiomas. We report a case of a 54-year-old male patient who underwent stepwise malignant transformation of meningioma from WHO grade 1 to grade 3 within 10 years, during the course of five surgeries followed by adjuvant stereotactic radiosurgery and radiotherapy. We performed next-generation sequencing (NGS) on the most recent grade 3 meningioma specimen and found that it carried a telomerase reverse transcriptase promoter (TERTp) mutation (c.-124C>T) in accordance with the 2021 WHO criteria for grade 3 meningiomas. We then retrospectively examined the previous grade 1 and 2 specimens and found them to have the same mutation. We reviewed the significance of molecular markers in the diagnosis of meningiomas, possible genetic alterations associated with their malignant transformation, and what measures could be taken to effectively manage meningiomas considering NGS findings.
2.Malignant Transformation of Meningioma With TERT Promoter Mutation: A Case Report
Yoontae HONG ; Nayoung HAN ; Ho-Shin GWAK
Brain Tumor Research and Treatment 2024;12(3):192-199
High-grade meningiomas make up a relatively minor proportion of meningiomas, which are one of the most common types of primary intracranial tumors in adults. Though rare, a considerable portion of highgrade meningiomas arise from malignant transformation of benign meningiomas. The 2021 World Health Organization (WHO) classification criteria introduced molecular markers in the diagnosis and grading of central nervous system (CNS) tumors and assigned certain genomic mutations to grade 3 meningiomas. We report a case of a 54-year-old male patient who underwent stepwise malignant transformation of meningioma from WHO grade 1 to grade 3 within 10 years, during the course of five surgeries followed by adjuvant stereotactic radiosurgery and radiotherapy. We performed next-generation sequencing (NGS) on the most recent grade 3 meningioma specimen and found that it carried a telomerase reverse transcriptase promoter (TERTp) mutation (c.-124C>T) in accordance with the 2021 WHO criteria for grade 3 meningiomas. We then retrospectively examined the previous grade 1 and 2 specimens and found them to have the same mutation. We reviewed the significance of molecular markers in the diagnosis of meningiomas, possible genetic alterations associated with their malignant transformation, and what measures could be taken to effectively manage meningiomas considering NGS findings.
3.Malignant Transformation of Meningioma With TERT Promoter Mutation: A Case Report
Yoontae HONG ; Nayoung HAN ; Ho-Shin GWAK
Brain Tumor Research and Treatment 2024;12(3):192-199
High-grade meningiomas make up a relatively minor proportion of meningiomas, which are one of the most common types of primary intracranial tumors in adults. Though rare, a considerable portion of highgrade meningiomas arise from malignant transformation of benign meningiomas. The 2021 World Health Organization (WHO) classification criteria introduced molecular markers in the diagnosis and grading of central nervous system (CNS) tumors and assigned certain genomic mutations to grade 3 meningiomas. We report a case of a 54-year-old male patient who underwent stepwise malignant transformation of meningioma from WHO grade 1 to grade 3 within 10 years, during the course of five surgeries followed by adjuvant stereotactic radiosurgery and radiotherapy. We performed next-generation sequencing (NGS) on the most recent grade 3 meningioma specimen and found that it carried a telomerase reverse transcriptase promoter (TERTp) mutation (c.-124C>T) in accordance with the 2021 WHO criteria for grade 3 meningiomas. We then retrospectively examined the previous grade 1 and 2 specimens and found them to have the same mutation. We reviewed the significance of molecular markers in the diagnosis of meningiomas, possible genetic alterations associated with their malignant transformation, and what measures could be taken to effectively manage meningiomas considering NGS findings.
4.Malignant Transformation of Meningioma With TERT Promoter Mutation: A Case Report
Yoontae HONG ; Nayoung HAN ; Ho-Shin GWAK
Brain Tumor Research and Treatment 2024;12(3):192-199
High-grade meningiomas make up a relatively minor proportion of meningiomas, which are one of the most common types of primary intracranial tumors in adults. Though rare, a considerable portion of highgrade meningiomas arise from malignant transformation of benign meningiomas. The 2021 World Health Organization (WHO) classification criteria introduced molecular markers in the diagnosis and grading of central nervous system (CNS) tumors and assigned certain genomic mutations to grade 3 meningiomas. We report a case of a 54-year-old male patient who underwent stepwise malignant transformation of meningioma from WHO grade 1 to grade 3 within 10 years, during the course of five surgeries followed by adjuvant stereotactic radiosurgery and radiotherapy. We performed next-generation sequencing (NGS) on the most recent grade 3 meningioma specimen and found that it carried a telomerase reverse transcriptase promoter (TERTp) mutation (c.-124C>T) in accordance with the 2021 WHO criteria for grade 3 meningiomas. We then retrospectively examined the previous grade 1 and 2 specimens and found them to have the same mutation. We reviewed the significance of molecular markers in the diagnosis of meningiomas, possible genetic alterations associated with their malignant transformation, and what measures could be taken to effectively manage meningiomas considering NGS findings.
5.Review of Atrophic Gastritis and Intestinal Metaplasia as a Premalignant Lesion of Gastric Cancer.
Journal of Cancer Prevention 2015;20(1):25-40
Atrophic gastritis (AG) and intestinal metaplasia (IM) are the main precursor lesions of gastric cancer as the incidence of gastric cancer increases in the gastric mucosa involved with AG and IM. The prevalence of AG and IM vary depending on countries, even it represents diverse results in the same nation. Usually AG is antecedent of IM but the etiologies of AG and IM are not always the same. The sensitivity and specificity of diagnostic methods to detect AG and IM are different. Furthermore, the management strategy of AG and IM has not been established, yet. Helicobacter pylori infection has been proved as the most important cause of AG and IM. Thus the eradication of H. pylori is very important to prevent the progression to gastric cancer which is still placed in the high rank in morbidity and mortality among cancers. However, the reversibility of AG and IM by eradication of H. pylori which was assumed to be certain by meta-analysis is; however, controversial now. Therefore, the understanding and early diagnosis of AG and IM are very important, especially, in high incidence area of gastric cancer such as Republic of Korea.
Early Diagnosis
;
Gastric Mucosa
;
Gastritis, Atrophic*
;
Helicobacter pylori
;
Incidence
;
Metaplasia*
;
Mortality
;
Prevalence
;
Republic of Korea
;
Sensitivity and Specificity
;
Stomach Neoplasms*
6.Recurrent L3 Chordoma Presented as Intradural Extramedullary Mass With Distant Metastasis: A Case Report
Soo Jin JANG ; Nayoung HAN ; Eun Kyeong HONG ; Ho-Shin GWAK
Brain Tumor Research and Treatment 2022;10(2):123-128
Here, we report a rare case of L3 chordoma progressed to an intradural extramedullary (IDEM) mass and distant metastasis to the fascia lata. A 64-year old female patient presented to a local university hospital due to back pain and received excisional biopsy for a L3 destructive bony lesion. Local radiation therapy was initially administered, assuming a malignancy of unknown origin, but she developed cerebrospinal fluid leakage during adjuvant radiation therapy, which was managed by wound revision and lumbar drainage. As the destructive lesion progressed, she visited our hospital for a second opinion 3 months after the biopsy. After review of outside pathology, we diagnosed the lesion to be a chordoma, and performed a L3 corpectomy with cage and plate fixation. One and a half years later, positron emission tomography and computed tomography (PET-CT) revealed a right tensor fascia lata hypermetabolic lesion. Excisional biopsy confirmed a distant metastasis of the chordoma. One year later, she complained of L2 radiating pain. PET-CT and CT myelogram revealed an IDEM lesion. Surgical excision confirmed the transdural invasion of the chordoma. To our knowledge, this is the first report of an iatrogenic IDEM invasion and distant metastasis to the tensor of the fascia lata by a L3 chordoma.
7.Identification of differentially expressed miRNAs associated with chronic kidney disease-mineral bone disorder
Kim Im KYUNG ; Jeong SOHYUN ; Han NAYOUNG ; Oh Mi JUNG ; Oh KOOK-HWAN ; Kim IN-WHA
Frontiers of Medicine 2017;11(3):378-385
The purpose of this study is to characterize a meta-signature of differentially expressed mRNA in chronic kidney disease (CKD) to predict putative microRNA (miRNA) in CKD-mineral bone disorder (CKD-MBD) and confirm the changes in these genes and miRNA expression under uremic conditions by using a cell culture system.PubMed searches using MeSH terms and keywords related to CKD,uremia,and mRNA arrays were conducted.Through a computational analysis,a meta-signature that characterizes the significant intersection of differentially expressed mRNA and expected miRNAs associated with CKD-MBD was determined.Additionally,changes in gene and miRNA expressions under uremic conditions were confirmed with human Saos-2 osteoblast-like cells.A statistically significant mRNA meta-signature of upregulated and downregulated mRNA levels was identified.Furthermore,miRNA expression profiles were inferred,and computational analyses were performed with the imputed microRNA regulation based on weighted ranked expression and putative microRNA targets (IMRE) method to identify miRNAs associated with CKD occurrence.TLR4 and miR-146b levels were significantly associated with CKD-MBD.TLR4 levels were significantly downregulated,whereas pri-miR-146b and miR-146b were upregulated in the presence of uremic toxins in human Saos-2 osteoblast-like cells.Differentially expressed miRNAs associated with CKD-MBD were identified through a computational analysis,and changes in gene and miRNA expressions were confirmed with an in vitro cell culture system.
8.Qualitative Study for Medication Use among Visually Impaired in Korea.
Heejo KOO ; Sunmee JANG ; Jung Mi OH ; Nayoung HAN ; Euna HAN
Korean Journal of Clinical Pharmacy 2016;26(1):24-32
OBJECTIVE: The visually impaired have limited access to health care services and related information, and thus, they can have serious hurdles against properly taking medications. Despite that it is important to improve self-care ability of the visually impaired for correct medication use, there have been few studies investigating their needs for health care services in Korea, particularly focusing on proper medication usage. This study is to explore safety-related issues regarding mediation usage among the visually impaired based on in-depth interview. We particularly focus on any obstacles for safe use of medicines including experience on medication-related adverse effects in order to provide preliminary evidence for policy measures to improve proper medication use among the visually impaired. METHODS: Study sample was visually impaired individuals who resided in Seoul area and were registered in the National Association of Visually Impaired. The association helped the process of recruiting the study participants. In-depth interview for each study participants was conducted. Each interview was recorded and later converted into a written script to extract core contents for the analysis. RESULTS: The study participants comprised of three women (42.9%) and four men (57.1%). One was in his 20's, and there were four participants in 30's and two in 40's. Fully impaired participants were majority (5 out of 7). Limitation to physical access to health care providers and health information were the key factors to hamper safe medication utilization among the study participants. Difficulty reading medication information and may take the wrong medication or incorrect doses of medication, resulting in serious consequences, including overdose or inadequate treatment of health problems. Visually impaired patients report increased anxiety related to medication management and must rely on others to obtain necessary drug information. Pharmacists have a unique opportunity to pursue accurate medication adherence in this special population. This article reviews literature illustrating how severe medication mismanagement can occur in the visually impaired elderly and presents resources and solutions for pharmacists to take a larger role in adherence management in this population. CONCLUSION: The visually impaired had difficulties reading medication information and identifying medicines, and took incorrect doses of medications. Public support for safe medication use and medication management among the visually impaired is necessary.
Aged
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Anxiety
;
Delivery of Health Care
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Female
;
Health Services Accessibility
;
Humans
;
Korea*
;
Male
;
Medication Adherence
;
Negotiating
;
Pharmacists
;
Self Care
;
Seoul
9.Pharmaceutical Care Services of Community Pharmacies in Korea Through the Review of Literature.
Hyun Soon SOHN ; Hyojung KIM ; Hyekyung PARK ; Nayoung HAN ; Jung Mi OH ; Eunhee JI
Korean Journal of Clinical Pharmacy 2015;25(1):18-26
BACKGROUND: The recent change in pharmaceutical education system following the paradigm shift to patient-oriented pharmacy service requires an in-depth discussion to reorganize a future direction and establish a basis for maximizing social values of community pharmacy service. OBJECTIVE: This study was conducted to review the current status of community pharmacy service provision in Korea based on published literatures. METHODS: The electronic databases of National Digital Science Library and Electronic National Assembly Library were used to search the journal articles and dissertation papers. A search term "community pharmacy" was used and the published period was limited to papers published after year 2001, when the legal separation of prescribing and dispensing was implemented. Relevant study reports were also searched manually. Information about pharmacy service provision and study outcomes were retrieved from the selected papers, and classified by predefined individual service scope. RESULTS: A total 33 papers reporting services provided by community pharmacies were selected (journal article 11, dissertation paper 17, and study report 5). Pharmacy services identified in these papers could be classified into prescription dispensing service, pharmaceutical care service, self medication service, other products service, and health promotion service. Twenty papers reported prescription dispensing services, three papers reported pharmaceutical care service, and only two papers reported health promotion service. Current community pharmacy services are highly dependent on prescription drugs while expanded services such as pharmaceutical care and health promotion are peripheral. Most prevalent research topic was medication counseling service (18 papers), reflecting that community pharmacists generally consider it to be the most important and fundamental service. Overall, current pharmacy services are very limited and focus on prescription dispensing service. CONCLUSION: At this point of time requiring expansion and quality improvement of community pharmacy services, we suggest further lively discussion to strengthen pharmacist's functional identity and set conditions for providing socially expected services.
Community Pharmacy Services
;
Counseling
;
Education, Pharmacy
;
Health Promotion
;
Humans
;
Korea*
;
Pharmaceutical Services*
;
Pharmacies*
;
Pharmacists
;
Prescription Drugs
;
Prescriptions
;
Quality Improvement
;
Self Medication
;
Social Values
10.Formulation of the Scope and Key Questions of the Guideline Recommendations for Immunosuppressive Treatment in Kidney Transplantation
Seungyeon HUH ; Nayoung HAN ; Minji SOHN ; Junghwa RYU ; Jaeseok YANG ; Jung Mi OH
Korean Journal of Clinical Pharmacy 2019;29(1):18-24
BACKGROUND: Although a growing number of guidelines and clinical researches are available for immunosuppressive treatment of post-transplantation, there is no clinical practice guideline for the care of kidney transplant recipients in Korea. Selection of a researchable question is the most important step in conducting qualified guideline development. Thus, we aimed to formulate key questions for Korean guideline to aid clinical decision-making for immunosuppressive treatment. METHODS: Based on previous published guidelines review, a first survey was constructed with 29 questions in the range of immunosuppressive treatments. The experts were asked to rate the clinical importance of the question using a 5-point Likert scale. The questions reached 60% or more from the first survey and additional new questions were included in the second survey. In analyzing the responses to items rated on the 9-point scale, consensus agreement on each question was defined as 75% or more of experts rating 7 to 9. RESULTS: In the first survey, 50 experts were included. Among the 29 questions, 27 were derived to get 60% or more importance and 3 new questions were additionally identified. Through the second survey, 9 questions were selected that experts reached consensus on 75% and over of the options. Finally, we developed key questions using PICO (patient, intervention, comparison, and outcome) methodology. CONCLUSION: The experts reached a high level of consensus on many of key questions in the survey. Final key questions provide direction for developing clinical practice guideline in the immunosuppressive treatment of transplantation.
Clinical Decision-Making
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Consensus
;
Kidney Transplantation
;
Kidney
;
Korea
;
Transplant Recipients