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Clinical applications of next-generation sequencing in colorectal cancers

World Journal of Gastroenterology 2013年第40期19卷 6784-6793页

作者： tae-Min Kim Sug-Hyung Lee Yeun-jun Chung MRC Cancer Evolution Research Center College of MedicineThe Catholic University of KoreaSeoul 137-701South Korea Integrated Research Center for Genome Polymorphism Department of MicrobiologyCollege of MedicineThe Catholic University of KoreaSeoul 137-701South Korea Department of Pathology College of MedicineThe Catholic University of KoreaSeoul 137-701South Korea

Like other solid tumors,colorectal cancer(CRC) is a genomic disorder in which various types of genomic alterations,such as point mutations,genomic rearrangements,gene fusions,or chromosomal copy number alterations,can contribute to the initiation and progression of the disease. The advent of a new DNA sequencing technology known as next-generation sequencing(NGS) has revolutionized the speed and throughput of cataloguing such cancer-related genomic alterations. Now the challenge is how to exploit this advanced technology to better understand the underlying molecular mechanism of colorectal carcinogenesis and to identify clinically relevant genetic biomarkers for diagnosis and personalized therapeutics. In this review,we will introduce NGS-based cancer genomics studies focusing on those of CRC,including a recent large-scale report from the Cancer Genome Atlas. We will mainly discuss how NGS-based exome-,whole genome- and methylome-sequencing have extended our understanding of colorectal carcinogenesis. We will also introduce the unique genomic features of CRC discovered by NGS technologies,such as the relationship with bacterial pathogens and the massive genomic rearrangements of chromothripsis. Finally,we will discuss the necessary steps prior to development of a clinical application of NGS-related findings for the advanced management of patients with CRC.

关键词： Next-generation sequencing Cancer genomics Colorectal cancers Personalized medicine The cancer genome atlas

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Complication after nipple-areolar complex tattooing performed by a non-medical person:A case report

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World Journal of Clinical Cases 2022年第34期10卷 12781-12786页

作者： Je Yeon Byeon tae Hoon Kim Hwan-jun Choi Plastic and Reconstructive Surgery Soonchunhyang University HospitalCheonan KS002South Korea

BACKGROUND Compared to earlier,there has been an increase in the tattoo procedures for cosmetic purposes;and there has also been an increase in the tattoo procedures performed by non-medical *** South Korea,only tattoos performed by a doctor are considered legal;however,there is still some debate over whether tattoo procedures performed by non-healthcare providers should be considered *** SUMMARY A 28-year-old woman visited our hospital with pain in both nipples and heat sensation over the last 4 *** had a history of a nipple tattoo performed by an unlicensed *** bleeding was noted in both areolar areas,and the exudate mixed with pus and orange color ink was *** medication and tulle with foam dressing were performed under the impression of cellulitis and allergic *** 4 wk,nipples remained dark brown in color,resulting in a color mismatch between the nipple and orange-colored *** size of the areola was also found to be distinctly asymmetrical after *** complication may have been caused by the use of illegal ink or unsanitary procedures,or a problem may have occurred in the post-tattoo management *** Doctors use approved ink,aseptic procedure and appropriate postoperative care,and appropriate management can be performed in case of complications.

关键词： Infections Nipples Tattooing Licensure Case report

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Neuronal injury and tumor necrosis factor-alpha immunoreactivity in the rat hippocampus in the early period of asphyxia-induced cardiac arrest under normothermia

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Neural Regeneration Research 2017年第12期12卷 2007-2013页

作者： Hyun-Jin tae Il jun Kang tae-Kyeong Lee Jeong Hwi Cho Jae-Chul Lee Myoung Cheol Shin Yoon Sung Kim jun Hwi Cho Jong-Dai Kim Ji Hyeon Ahn Joon ha Park In-Shik Kim Hyang-Ah Lee Yang Hee Kim Moo-Ho Won Young Joo Lee Bio-Safety Research Institute College of Veterinary Medicine Chonbuk National University Iksan South Korea Department of Food Science and Nutrition Hallym University Chuncheon South Korea Department of Neurobiology School of Medicine Kangwon National University Chuncheon South Korea Department of Emergency Medicine School of Medicine Kangwon National University Chuncheon South Korea Department of Emergency Medicine Samcheok Medical Center Samcheok South Korea Division of Food Biotechnology School of Biotechnology Kangwon National University Chuncheon South Korea Department of Biomedical Science Research Institute of Bioscience and Biotechnology Hallym University Chuncheon South Korea Department of Obstetrics and Gynecology School of Medicine Kangwon National University Chuncheon South Korea Department of Surgery School of Medicine Kangwon National University Chuncheon South Korea Department of Emergency Medicine Seoul Hospital College of Medicine Sooncheonhyang University Seoul South Korea

Low survival rate occurs in patients who initially experience a spontaneous return of circulation after cardiac arrest（CA）. In this study, we induced asphyxial CA in adult male Sprague-Daley rats, maintained their body temperature at 37 ± 0.5°C, and then observed the survival rate during the post-resuscitation phase. We examined neuronal damage in the hippocampus using cresyl violet（CV） and Fluore-Jade B（F-J B） staining, and pro-inflammatory response using ionized calcium-binding adapter molecule 1（Iba-1）, glial fibrillary acidic protein（GFAP）, and tumor necrosis factor-alpha（TNF-α） immunohistochemistry in the hippocampus after asphyxial CA in rats under normothermia. Our results show that the survival rate decreased gradually post-CA（about 63% at 6 hours, 37% at 1 day, and 8% at 2 days post-CA）. Rats were sacrificed at these points in time post-CA, and no neuronal damage was found in the hippocampus until 1 day post-CA. However, some neurons in the stratum pyramidale of the CA region in the hippocampus were dead 2 days post-CA. Iba-1 immunoreactive microglia in the CA1 region did not change until 1 day postCA, and they were activated（enlarged cell bodies with short and thicken processes） in all layers 2 days postCA. Meanwhile, GFAP-immunoreactive astrocytes did not change significantly until 2 days post-CA. TNF-α immunoreactivity decreased significantly in neurons of the stratum pyramidale in the CA1 region 6 hours post-CA, decreased gradually until 1 day post-CA, and increased significantly again 2 days post-CA. These findings suggest that low survival rate of normothermic rats in the early period of asphyxia-induced CA is related to increased TNF-α immunoreactivity, but not to neuronal damage in the hippocampal CA1 region.

关键词： nerve regeneration post-cardiac arrest syndrome normothermia neuronal damage gliosis tumor necrosis factor-alpha neural regeneration

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Posterior reversible encephalopathy syndrome in a patient with metastatic breast cancer:A case report

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World Journal of Clinical Cases 2022年第7期10卷 2281-2285页

作者： Chae Hyun Song Seung jun Lee ha Ra Jeon Department of Physical Medicine and Rehabilitation National Health Insurance Service Ilsan HospitalGoyang-si Gyeonggi-do 10444South Korea Department of Physical Medicine and Rehabilitation National Health Insurance Service Ilsan HospitalGoyang-si Gyeonggi-do ASI/KR/KS009/GoyangSouth Korea

BACKGROUND Posterior reversible encephalopathy syndrome(PRES)is a neurotoxic encephalopathic state with clinical symptoms such as headache,altered consciousness,visual disturbances,and *** edema occurs predominantly in the posterior occipital and parietal lobes of the *** is caused by various diseases,and its mechanism remains ***,it can be easily diagnosed based on characteristic lesions on magnetic resonance *** SUMMARY A 51-year-old woman with unremarkable past medical history presented with progressively worsening back pain since 2 *** examinations revealed paralumbar muscle tenderness,a large lesion on the right breast and several masslike lesions on both *** blood pressure(BP)was elevated(150/90 mmHg),and did not respond to antihypertensive *** the seventh day of hospitalization,she exhibited a confused mental status and generalized tonicclonic *** magnetic resonance imaging,bilateral cortical and subcortical edema of the occipital lobes,suggestive of PRES,was *** serum calcium was 15.8 mg/*** two days of treatment with nicardipine,elcatonin,and zolendronic acid,her BP was 130/91 mmHg and serum calcium was 10.1 mg/*** patient regained consciousness and her mental status ***-positron emission tomography revealed right breast cancer with extensive *** Although rare,hypercalcemia can lead to PRES by causing uncontrolled *** diagnosis can help prevent severe mental disturbances and even death.

关键词： Posterior reversible encephalopathy syndrome Breast cancer Hypercalcemia Hypertension Case report

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Production of high-purity Mg metal from dolomite through novel molten salt electrolysis and vacuum distillation

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Journal of Magnesium and Alloys 2023年第4期11卷 1308-1320页

作者： Hyeong-jun Jeoung tae-Hyuk Lee Jin-Young Lee Kyung-Woo Yi jungshin Kang Korea Institute of Geoscience and Mineral Resources 124 Gwahak-ro Yuseong-guDaejeon 34132Republic of Korea Department of Materials Science and Engineering Seoul National University1 Gwanak-roGwanak-guSeoul 08826Republic of Korea Department of Resources Engineering University of Science and Technology217 Gajeong-ro Yuseong-guDaejeon 34113Republic of Korea School of Materials Science and Engineering Pusan National University2 Busandaehak-roGeumjeong-guBusan 46241Republic of Korea

In this study,a novel Mg production process for producing high-purity Mg metal from dolomite was *** the electrolysis of calcined dolomite was conducted using Cu cathode and C anode in MgF_(2)–LiF molten salt at 1083–1173 K by applying an average current of 1.42–1.46 A for 9.50–21.0 h,the current efficiency of 66.4–88.6%was *** produced Mg alloys consisted of MgCu_(2)and Cu(Mg)or MgCu_(2)and CuMg_(2)phases,depending on the Mg concentration in the Mg *** the electrolysis of calcined dolomite was conducted in MgF_(2)–LiF–CaF_(2)molten salt at 1083 K,the current efficiency was 40.9–71.4%,owing to undesired reactions such as electroreduction of Ca^(2+)or/and CO_(3)^(2−)***,the current efficiency increased from 40.9%to 63.2%by utilizing a Pt anode,because the occurrence of CO_(3)^(2−)ions in the molten salt was *** vacuum distillation of the obtained Mg alloys at 1300 K for 10 h,Mg metal with a purity of 99.9996–99.9998%was ***,the feasibility of this novel process for the production of high-purity Mg metal from dolomite was demonstrated.

关键词： High-purity magnesium Dolomite Magnesium oxide Electrolytic process Copper metal cathode Vacuum distillation

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YouTube as a source of patient information on gallstone disease

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World Journal of Gastroenterology 2014年第14期20卷 4066-4070页

作者： jun Suh Lee Ho Seok Seo tae Ho Hong Department of Surgery Armed Forces Capital Hospital Department of Surgery Seoul St. Mary’s HospitalCollege of MedicineThe Catholic University of Korea

AIM: To investigate the quality of YouTube videos on gallstone disease and to assess viewer response according to quality.

关键词： YouTube Gallstone disease Gallstone Gallbladder Cholecystitis

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Effects of traditional Chinese herbal medicine San-HuangXie-Xin-Tang on gastrointestinal motility in mice

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World Journal of Gastroenterology 2015年第4期21卷 1117-1124页

作者： Min Woo Hwang tae Seok Ahn Noo Ri Hong han-Sol Jeong Myeong Ho jung Ki-tae ha Byung Joo Kim Department of Sasang Constitutional Medicine College of Korean MedicineKyung Hee UniversitySeoul 130-701South Korea School of Korean Medicine Pusan National UniversityYangsan 626-870South Korea

AIM: To investigate the effects of San-Huang-Xie-XinTang(SHXXT), a herbal product used in traditional Chinese medicine, on gastrointestinal(GI) motility in ***: The in vivo effects of SHXXT on GI motility were investigated by measuring the intestinal transit rates(ITRs) using Evans blue in normal mice and in mice with experimentally induced GI motility dysfunction(GMD).RESULTS: In normal ICR mice, ITRs were significantly and dose-dependently increased by SHXXT(0.1-1 g/kg). GMD was induced by injecting acetic acid or streptozotocin intraperitoneally. The ITRs of GMD mice were significantly reduced compared to normal mice, and these reductions were significantly and dose-dependently inhibited by SHXXT(0.1-1 g/kg).CONCLUSION: These results suggest that SHXXT is a novel candidate for the development of a prokinetic agent that may prevent or alleviate GMD.

关键词： Gastrointestinal disorders San-Huang-XieXin-Tang M

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Expression rates of p16,p53 in head and neck cutaneous squamous cell carcinoma based on human-papillomavirus positivity

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World Journal of Clinical Cases 2025年第9期13卷 13-23页

作者： ha-Jong Nam Heongrae Ryu Da-Woon Lee Je Yeon Byeon jun Hyuk Kim Ji Hye Lee Soomin Lim Hwan jun Choi Department of Plastic and Reconstructive Surgery Soonchunhyang University Gumi HospitalGumi-si 39371South Korea Department of Plastic and Reconstructive Surgery College of MedicineSoonchunhyang UniversityCheonan-si 31151South Korea Department of Pathology Soonchunhyang University HospitalCheonan-si 31151South Korea Bachelor of Medicine and Bachelor of Surgery University College LondonMedical SchoolLondon WC1E 6DEUnited Kingdom

BACKGROUND The high prevalence of human papillomavirus(HPV)infection in oropharyngeal squamous cell carcinoma(SCC)is well established,and p16 expression is a strong ***-related tumors exhibit unique mechanisms that target p16 and p53 ***,research on HPV prevalence and the combined predictive value of p16 and p53 expression in head and neck cutaneous SCC(HNCSCC),particularly in Asian populations,remains *** retrospective study surveyed 62 patients with HNSCC(2011-2020),excluding those with facial warts or other skin *** To explore the prevalence of HPV and the predictive value of p16 and p53 expression in HNCSCC in Asian *** All patients underwent wide excision and *** staining for HPV,p16,and p53 yielded positive and negative *** relevance of each marker was investigated by categorizing the tumor locations into high-risk and middle-risk zones based on recurrence *** Of the 62 patients,20(32.26%)were male,with an average age of 82.27 years(range 26-103 years).High-risk included 19 cases(30.65%),with the eyelid and lip being the most common sites(five cases,8.06%).Middle-risk included 43 cases(69.35%),with the cheek being the most common(29 cases,46.77%).The p16 expression was detected in 24 patients(38.71%),p53 expression in 42 patients(72.58%),and HPV in five patients(8.06%).No significant association was found between p16 expression and the presence of HPV(P>0.99),with a positive predictive value of 8.33%.CONCLUSION This study revealed that p16,a surrogate HPV marker in oropharyngeal SCC,is not reliable in HNCSCC,providing valuable insights for further research in Asian populations.

关键词： Squamous cell carcinoma Oropharyngeal Non-oropharyngeal Human papillomavirus The p16 The p53

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Optimal energy-efficiency capacity and sensing tradeoff for hybrid spectrum sharing in CRN

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The Journal of China Universities of Posts and Telecommunications 2012年第2期19卷 1-8页

作者： QIU Tao XU Wen-jun SONG tae HE Zhi-qiang TIAN Bao-yu School of Information and Communications Engineering Beijing University of Posts and TelecommunicationsBeijing 100876China

This paper investigates the tradeoff between energy-efficiency capacity and spectrum sensing under hybrid spectrum sharing model, where the spectrum sharing method is based on sensing results of secondary user （SU）. The metric ＇bits per joule＇, which captures the effect of energy overhead in spectrum sensing, is adopted to evaluate energy-efficiency capacity. We first formulize the tradeoff between energy-efficiency capacity and spectrum sensing as an optimization problem with mixture constraint of sensing time and detection threshold. Under some certain condition on the domain of detection threshold, i.e. in which we can＇t improve energy-efficiency capacity through increasing the detection probability, the original optimization problem can be reduced to a new unconstrained one, which only relates to sensing time. Then the existence and uniqueness of optimal sensing time to achieve maximum energy-efficiency capacity are discussed and a low-complexity algorithm is proposed to obtain the optimal solution. Finally, numerical simulation is performed to verify the theoretical analysis results. The simulation results indicate that hybrid spectrum sharing is remarkably beneficial to energy-efficient transmission in cognitive radio networks （CRN）. And the proposed algorithm can quickly converge to the optimal solution.

关键词： energy-efficiency capacity spectrum sensing hybrid spectrum sharing cognitive radio network (CRN)

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Delayed hypersensitivity reaction resulting in maculopapular-type eruption due to entecavir in the treatment of chronic hepatitis B

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World Journal of Gastroenterology 2014年第42期20卷 15931-15936页

作者： Jeong tae Kim Hye Won Jeong Ki Hwa Choi tae Young Yoon Nohyun Sung Young Ki Choi Eun ha Kim Hee Bok Chae Department of Internal Medicine College of Medicine and Medical Research Institute Chungbuk National University Department of Dermatology College of Medicine and Medical Research Institute Chungbuk National University Department of Pathology College of Medicine and Medical Research Institute Chungbuk National University Department of Microbiology College of Medicine and Medical Research Institute Chunguk National University

Several clinical trials have demonstrated the potent antiviral efficacy of entecavir (ETV), and this relatively new nucleoside analogue drug has rapidly become a frequently prescribed therapy for chronic hepatitis B (CHB) worldwide. While the studies have also shown a good overall safety profile for ETV, adverse drug reactions (ADRs) in patients with advanced cirrhosis have been reported and represent a broad spectrum of drug-induced injuries, including lactic acidosis, myalgia, neuropathy, azotemia, hypophosphatemia, muscular weakness, and pancreatitis, as well as immune-mediated responses (i.e., allergic reactions). Cutaneous ADRs associated with ETV are very rare, with only two case reports in the publicly available literature; both of these cases were classified as unspecified hypersensitivity allergic (type I) ADR, but neither were reported as pathologically proven or as evaluated by cytokine release analysis. Here, we report the case of a 45-year-old woman who presented with a generalized maculopapular rash after one week of ETV treatment for lamivudine-resistant CHB. The patient reported having experienced a similar skin eruption during a previous three-month regimen of ETV, for which she had self-discontinued the medication. Histopathological analysis of a skin biopsy showed acanthotic epidermis with focal parakeratosis and a perivascular lymphocytic infiltrate admixed with interstitial eosinophils in the papillary and reticular dermis, consistent with a diagnosis of drug sensitivity. A lymphocyte stimulation test showed significantly enhanced IL-4, indicating a classification of type IVb delayed hypersensitivity. The patient was switched to an adefovir-lamivudine combination regimen and the skin eruption resolved two weeks after the ETV withdrawal. This case represents the first pathologically and immunologically evidenced ETV-induced delayed type hypersensitivity skin reaction reported to date. Physicians should be aware of the potential, although rare, fo

关键词： Entecavir Delayed type hypersensitivity Maculopapular drug eruption Dermatology Adverse drug reaction Chronic hepatitis B

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