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Relationship of meteorological factors and air pollutants with medical care utilization for gastroesophageal reflux disease in urban area

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World Journal of Gastroenterology 2020年第39期26卷 6074-6086页

作者： Ho Seok Seo Jinwook Hong jaehun jung Division of Gastrointestinal Surgery Department of SurgerySeoul St.Mary’s HospitalCollege of MedicineThe Catholic University of KoreaSeoul 06591South Korea Artificial Intelligence and Big-Data Convergence Center Gil Medical CenterGachon University College of Medicine and ScienceIncheon 21565South Korea Department of Preventive Medicine Gachon University College of MedicineIncheon 21565South Korea

BACKGROUND Gastroesophageal reflux disease(GERD)is a highly prevalent disease of the upper gastrointestinal tract,and it is associated with environmental and lifestyle *** to an increasing interest in the environment,several groups are studying the effects of meteorological factors and air pollutants(MFAPs)on disease *** To identify MFAPs effect on GERD-related medical *** Data on GERD-related medical utilization from 2002 to 2017 were obtained from the National Health Insurance Service of Korea,while those on MFAPs were obtained from eight metropolitan areas and *** total,20071900 instances of GERD-related medical utilizations were identified,and 200000 MFAPs were randomly selected from the eight metropolitan *** were analyzed using a multivariable generalized additive Poisson regression model to control for time trends,seasonality,and day of the *** Five MFAPs were selected for the prediction ***-related medical utilization increased with the levels of particulate matter with a diameter≤2.5μm(PM2.5)and carbon monoxide(CO).S-shaped and inverted U-shaped changes were observed in average temperature and air pollutants,*** time lag of each variable was significant around nine days after *** Using five MFAPs,the final model significantly predicted GERD-related medical *** particular,PM2.5 and CO were identified as risk or aggravating factors for GERD.

关键词： Gastroesophageal reflux disease Air pollution Meteorological factor Particulate matter Carbon monoxide

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Development of exosome membrane materialsfused microbubbles for enhanced stability and efficient drug delivery of ultrasound contrast agent

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Acta Pharmaceutica Sinica B 2023年第12期13卷 4983-4998页

作者： Yongho Jang Jeehun Park Pilsu Kim Eun-Joo Park Hyungjin Sun Yujin Baek jaehun jung Tai-kyong Song Junsang Doh Hyuncheol Kim Department of Chemical and Biomolecular Engineering Sogang UniversitySeoul 04107Republic of Korea Research Institute of Advanced Materials(RIAM) Institute of Engineering ResearchSeoul National UniversitySeoul 08826Republic of Korea Department of Electronic Engineering Sogang UniversitySeoul 04107Republic of Korea Biomedical Research Institute&Department of Radiology Seoul National University HospitalSeoul 03080Republic of Korea Interdisciplinary Program in Bioengineering Seoul National UniversitySeoul 08826Republic of Korea Department of Materials Science and Engineering Seoul National UniversitySeoul 08826Republic of Korea Institute of Engineering Research Bio-MAX InstituteSeoul National UniversitySeoul 08826Republic of Korea Department of Biomedical Engineering Sogang UniversitySeoul 04107Republic of Korea

Lipid-coated microbubbles are widely used as an ultrasound contrast agent,as well as drug delivery ***,the two main limitations in ultrasound diagnosis and drug delivery using microbubbles are the short half-life in the blood system,and the difficulty of surface modification of microbubbles for active *** exosome,a type of extracellular vesicle,has a preferentially targeting ability for its original *** this study,exosome-fused microbubbles(Exo-MBs)were developed by embedding the exosome membrane proteins into *** a result,the stability of Exo-MBs is improved over the conventional *** the same principle that under the exposure of ultrasound,microbubbles are cavitated and self-assembled into nano-sized particles,and Exo-MBs are self-assembled into exosome membrane proteins-embedded nanoparticles(Exo-NPs).The Exo-NPs showed favorable targeting properties to their original cells.A photosensitizer,chlorin e6,was loaded into Exo-MBs to evaluate therapeutic efficacy as a drug *** higher therapeutic efficacy of photodynamic therapy was confirmed,followed by cancer immunotherapy from immunogenic cell *** have therefore developed a novel ultrasound image-guided drug delivery platform that overcomes the shortcomings of the conventional ultrasound contrast agent and is capable of simultaneous photodynamic therapy and cancer immunotherapy.

关键词： Exosomes Microbubbles Photodynamic therapy Ultrasound Sonoporation Cancer immunotherapy Drug delivery

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Association of chronic viral hepatitis B with insulin resistance

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World Journal of Gastroenterology 2012年第42期18卷 6120-6126页

作者： Jeong Gyu Lee Sangyeoup Lee Yun Jin Kim Byung Mann Cho Joo Sung Park Hyung Hoi Kim jaehun Cheong Dong Wook Jeong Yu Hyun Lee Young Hye Cho Mi Jin Bae Eun jung Choi Department of Family Medicine Pusan National University School of MedicineBeomeo-ri Mulgeum-eupYangsan 626-770South Korea Department of Family Medicine Medical Research InstitutePusan National University HospitalBusan 602-739South Korea Medical Education Unit Pusan National University School of MedicineBeomeo-ri Mulgeum-eupYangsan 626-770South Korea Family Medicine Clinic Yangsan Pusan National University HospitalBeomeo-ri Mulgeum-eupYangsan 626-770South Korea Department of Preventive Medicine and Occupational Medicine Pusan National University School of MedicineBeomeo-ri Mulgeum-eupYangsan 626-770South Korea Department of Family Medicine Dong-A University Medical CenterBusan 602-715South Korea Department of Laboratory Medicine Biomedical Informatics UnitPusan National University School of MedicineBeomeo-ri Mulgeum-eupYangsan 626-770South Korea Department of Molecular Biology College of Natural SciencesPusan National UniversityBusan 602-739South Korea

AIM:To investigate the relationship between chronic viral hepatitis B(CVHB) and insulin resistance(IR) in Korean ***:A total of 7880 adults(3851 men,4029 women) who underwent a comprehensive medical examination were enrolled in this *** diagnosed with either diabetes mellitus,or any other disorder that could influence their insulin sensitivity,were ***,metabolic risk factors,hepatitis B surface antigen,hepatitis B surface antibody,hepatitis B core antibody,fasting plasma glucose and insulin were measured for all *** model assessment(HOMA),quantitative insulin check index(QUICKI),and Mf fm index were used for determining insulin *** participant was categorized into a negative,recovery,or CVHB *** compare variables between groups,a t-test and/or one-way analysis of variance were *** correlation coefficients were computed to present the association between insulin resistance and other *** logistic regression analysis was used to assess the independent association between CVHB and ***:The mean age of men and women were 48.9 and 48.6 years,*** in the CVHB group had significantly higher waist circumference [(86.0 ± 7.7 cm vs 87.3 ± 7.8 cm,P = 0.004 in men),(78.3 ± 8.6 cm vs 80.5 ± 8.5 cm,P < 0.001 in women)],cystatin C [(0.96 ± 0.15 mg/dL vs 1.02 ± 0.22 mg/dL,P < 0.001 in men),(0.84 ± 0.15 mg/dL vs 0.90 ± 0.16 mg/dL,P < 0.001 in women)],fasting insulin [(5.47 ± 3.38 U/mL vs 6.12 ± 4.62 U/mL,P < 0.001 in men),(4.57 ± 2.82 U/mL vs 5.06 ± 3.10 U/mL,P < 0.001 in women)] and HOMA index [(1.24 ± 0.86 vs 1.43 ± 1.24,P < 0.001 in men),(1.02 ± 0.76 vs 1.13 ± 0.87,P = 0.033 in women)] compared to control *** HOMA index revealed a positive correlation with body mass index(BMI)(r = 0.378,P < 0.001),waist circumference(r =0.356,P < 0.001),percent body fat(r = 0.296,P < 0.001),systolic blood pressure(r = 0.202,P < 0.001),total cholesterol(r = 0.134,P < 0.00

关键词： Hepatitis B Insulin resistance Diabetes mellitus type 2 Metabolic syndrome

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