1.Capsosiphon fulvescens suppresses LPS-stimulated inflammatory responses by suppressing TLR4/NF-κB activation in RAW264.7 murine macrophages
Seon Yeong Ji ; EunJin Bang ; Hyun Hwangbo ; Min Yeong Kim ; Da Hye Kim ; Su Hyun Hong ; Shin- Hyung Park ; Chang-Young Kwon ; Gi-Young Kim ; You-Jin Jeon ; Suengmok Cho ; Yung Hyun Choi
Asian Pacific Journal of Tropical Biomedicine 2024;14(3):115-126
Objective: To evaluate the effects of Capsosiphon fulvescens (C. fulvescens) ethanolic extract on inflammation in lipopolysaccharide (LPS)-induced RAW296.7 macrophages. Methods: The protective effects of C. fulvescens ethanolic extract on LPS-induced inflammation in RAW264.7 macrophages were assessed using biochemical analysis, including enzyme-linked immunosorbent assay, quantitative reverse transcription-polymerase chain reaction, and Western blot analysis. To examine reactive oxygen species (ROS) production, flow cytometry analysis, and immunofluorescence staining were used. Furthermore, the modulatory effect of C. fulvescens ethanolic extract on NF-κB activation was investigated. Results: C. fulvescens ethanolic extract significantly attenuated LPS-induced levels of pro-inflammatory cytokines and notably reduced the secretion and mRNA levels of LPS-mediated matrix metalloproteinases. In addition, C. fulvescens ethanolic extract decreased ROS production and suppressed the TLR4/NF-κB signaling pathway. Conclusions: C. fulvescens ethanolic extract alleviates inflammation as well as oxidative stress by modulating the TLR4/NF-κB signaling in LPS-induced RAW264.7 macrophages. C. fulvescens can be used as a potential therapeutic agent to suppress inflammation and oxidative stress-associated diseases.
2.Observation of neutrophil extracellular traps in the development of diabetic nephropathy using diabetic murine models
You Hyun JEON ; Se-Hyun OH ; Soo-Jung JUNG ; Eun-Joo OH ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Ji-Young CHOI ; Sun-Hee PARK ; Chan-Duck KIM ; Yong-Lim KIM ; Chang-Won HONG ; Jang-Hee CHO
Laboratory Animal Research 2024;40(4):424-434
Background:
Diabetic nephropathy (DN) is a progressive complication among patients with diabetes and the most common cause of end-stage kidney disease. Neutrophil extracellular traps (NETs) are known to play a role in kidney disease, thus this study aimed to determine their role in the development of diabetic kidney disease using diabetic murine models.
Results:
Protein and histological analyses revealed that db/db mice and streptozotocin DN models expressed no significant NET-related proteins, myeloperoxidase, citrullinated histone H3 (citH3), neutrophil elastase, and lymphocyte antigen 6 complex locus G6D (Ly6G). However, the inflamed individuals in the DN model showed that citH3 and Ly6G were highly deposited in the renal system based on immunohistochemistry images. In vitro, NET treatment did not induce apoptosis in glomerular endothelial and renal tubular epithelial cells. NET inhibition by DNase administration demonstrated no significant changes in cell apoptosis.
Conclusions
NET-related proteins were only expressed in the DN model with tubulointerstitial inflammation. Our study revealed that NETs are only induced in mice with hyperglycemia-induced inflammation.
3.Observation of neutrophil extracellular traps in the development of diabetic nephropathy using diabetic murine models
You Hyun JEON ; Se-Hyun OH ; Soo-Jung JUNG ; Eun-Joo OH ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Ji-Young CHOI ; Sun-Hee PARK ; Chan-Duck KIM ; Yong-Lim KIM ; Chang-Won HONG ; Jang-Hee CHO
Laboratory Animal Research 2024;40(4):424-434
Background:
Diabetic nephropathy (DN) is a progressive complication among patients with diabetes and the most common cause of end-stage kidney disease. Neutrophil extracellular traps (NETs) are known to play a role in kidney disease, thus this study aimed to determine their role in the development of diabetic kidney disease using diabetic murine models.
Results:
Protein and histological analyses revealed that db/db mice and streptozotocin DN models expressed no significant NET-related proteins, myeloperoxidase, citrullinated histone H3 (citH3), neutrophil elastase, and lymphocyte antigen 6 complex locus G6D (Ly6G). However, the inflamed individuals in the DN model showed that citH3 and Ly6G were highly deposited in the renal system based on immunohistochemistry images. In vitro, NET treatment did not induce apoptosis in glomerular endothelial and renal tubular epithelial cells. NET inhibition by DNase administration demonstrated no significant changes in cell apoptosis.
Conclusions
NET-related proteins were only expressed in the DN model with tubulointerstitial inflammation. Our study revealed that NETs are only induced in mice with hyperglycemia-induced inflammation.
4.Observation of neutrophil extracellular traps in the development of diabetic nephropathy using diabetic murine models
You Hyun JEON ; Se-Hyun OH ; Soo-Jung JUNG ; Eun-Joo OH ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Ji-Young CHOI ; Sun-Hee PARK ; Chan-Duck KIM ; Yong-Lim KIM ; Chang-Won HONG ; Jang-Hee CHO
Laboratory Animal Research 2024;40(4):424-434
Background:
Diabetic nephropathy (DN) is a progressive complication among patients with diabetes and the most common cause of end-stage kidney disease. Neutrophil extracellular traps (NETs) are known to play a role in kidney disease, thus this study aimed to determine their role in the development of diabetic kidney disease using diabetic murine models.
Results:
Protein and histological analyses revealed that db/db mice and streptozotocin DN models expressed no significant NET-related proteins, myeloperoxidase, citrullinated histone H3 (citH3), neutrophil elastase, and lymphocyte antigen 6 complex locus G6D (Ly6G). However, the inflamed individuals in the DN model showed that citH3 and Ly6G were highly deposited in the renal system based on immunohistochemistry images. In vitro, NET treatment did not induce apoptosis in glomerular endothelial and renal tubular epithelial cells. NET inhibition by DNase administration demonstrated no significant changes in cell apoptosis.
Conclusions
NET-related proteins were only expressed in the DN model with tubulointerstitial inflammation. Our study revealed that NETs are only induced in mice with hyperglycemia-induced inflammation.
5.Observation of neutrophil extracellular traps in the development of diabetic nephropathy using diabetic murine models
You Hyun JEON ; Se-Hyun OH ; Soo-Jung JUNG ; Eun-Joo OH ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Ji-Young CHOI ; Sun-Hee PARK ; Chan-Duck KIM ; Yong-Lim KIM ; Chang-Won HONG ; Jang-Hee CHO
Laboratory Animal Research 2024;40(4):424-434
Background:
Diabetic nephropathy (DN) is a progressive complication among patients with diabetes and the most common cause of end-stage kidney disease. Neutrophil extracellular traps (NETs) are known to play a role in kidney disease, thus this study aimed to determine their role in the development of diabetic kidney disease using diabetic murine models.
Results:
Protein and histological analyses revealed that db/db mice and streptozotocin DN models expressed no significant NET-related proteins, myeloperoxidase, citrullinated histone H3 (citH3), neutrophil elastase, and lymphocyte antigen 6 complex locus G6D (Ly6G). However, the inflamed individuals in the DN model showed that citH3 and Ly6G were highly deposited in the renal system based on immunohistochemistry images. In vitro, NET treatment did not induce apoptosis in glomerular endothelial and renal tubular epithelial cells. NET inhibition by DNase administration demonstrated no significant changes in cell apoptosis.
Conclusions
NET-related proteins were only expressed in the DN model with tubulointerstitial inflammation. Our study revealed that NETs are only induced in mice with hyperglycemia-induced inflammation.
6.Observation of neutrophil extracellular traps in the development of diabetic nephropathy using diabetic murine models
You Hyun JEON ; Se-Hyun OH ; Soo-Jung JUNG ; Eun-Joo OH ; Jeong-Hoon LIM ; Hee-Yeon JUNG ; Ji-Young CHOI ; Sun-Hee PARK ; Chan-Duck KIM ; Yong-Lim KIM ; Chang-Won HONG ; Jang-Hee CHO
Laboratory Animal Research 2024;40(4):424-434
Background:
Diabetic nephropathy (DN) is a progressive complication among patients with diabetes and the most common cause of end-stage kidney disease. Neutrophil extracellular traps (NETs) are known to play a role in kidney disease, thus this study aimed to determine their role in the development of diabetic kidney disease using diabetic murine models.
Results:
Protein and histological analyses revealed that db/db mice and streptozotocin DN models expressed no significant NET-related proteins, myeloperoxidase, citrullinated histone H3 (citH3), neutrophil elastase, and lymphocyte antigen 6 complex locus G6D (Ly6G). However, the inflamed individuals in the DN model showed that citH3 and Ly6G were highly deposited in the renal system based on immunohistochemistry images. In vitro, NET treatment did not induce apoptosis in glomerular endothelial and renal tubular epithelial cells. NET inhibition by DNase administration demonstrated no significant changes in cell apoptosis.
Conclusions
NET-related proteins were only expressed in the DN model with tubulointerstitial inflammation. Our study revealed that NETs are only induced in mice with hyperglycemia-induced inflammation.
7.Healthcare Utilization and Discrepancies by Income Level Among Patients With Newly Diagnosed Type 2 Diabetes in Korea: An Analysis of National Health Insurance Sample Cohort Data
Eun Jee PARK ; Nam Ju JI ; Chang Hoon YOU ; Weon Young LEE
Journal of Preventive Medicine and Public Health 2024;57(5):471-479
Objectives:
The use of qualitative healthcare services or its discrepancy between different income levels of the type 2 diabetes (T2D) patients has seldom been studied concurrently. The present study is unique that regarding T2D patients of early stages of diagnosis. Aimed to assess the utilization of qualitative healthcare services and influence of income levels on the inequality of care among newly diagnosed patients with T2D.
Methods:
A retrospective cohort study of 7590 patients was conducted by the National Health Insurance Service National Sample Cohort 2.0 from 2002 to 2015. Insured employee in 2013 with no history of T2D between 2002 and 2012 were included. The standard of diabetes care includes hemoglobin A1c (HbAlc; 4 times/y), eyes (once/y) and lipid abnormalities (once/y). Multivariate logistic regression analysis was performed to examine the difference between income levels and inequality of care.
Results:
From years 1 to 3, rates of appropriate screening fell from 16.9% to 14.1% (HbA1c), 15.8% to 14.5% (eye), and 59.2% to 33.2% (lipid abnormalities). Relative to income class 5 (the highest-income group), HbA1 screening was significantly less common in class 2 (year 2: odds ratio [OR], 0.78; 95% confidence interval [CI], 0.61 to 0.99; year 3: OR, 0.79; 95% CI, 0.69 to 0.91). In year 1, lipid screening was less common in class 1 (OR, 0.84; 95% CI, 0.73 to 0.98) than in class 5, a trend that continued in year 2. Eye screening rates were consistently lower in class 1 than in class 5 (year 1: OR, 0.73; 95% CI, 0.60 to 0.89; year 2: OR, 0.63; 95% CI, 0.50 to 0.78; year 3: OR, 0.81; 95% CI, 0.67 to 0.99).
Conclusions
Newly diagnosed T2D patients have shown low rate of HbA1c and screening for diabetic-related complications and experienced inequality in relation to receiving qualitative diabetes care by income levels.
8.High vegetable consumption and regular exercise are associated with better quality of life in patients with gout
Hyunsue DO ; Hyo Jin CHOI ; Byoongyong CHOI ; Chang-Nam SON ; Sang-Hyon KIM ; You-Jung HA ; Ji Hyoun KIM ; Min Jung KIM ; Kichul SHIN ; Hyun-Ok KIM ; Ran SONG ; Sung Won LEE ; Joong Kyong AHN ; Seung-Geun LEE ; Chang Hoon LEE ; Kyeong Min SON ; Ki Won MOON
The Korean Journal of Internal Medicine 2024;39(5):845-854
Background/Aims:
The Gout Impact Scale (GIS), a part of the Gout Assessment Questionnaire 2.0, is used to measure gout-specific health-related quality of life (HRQOL). Although several studies have been conducted on the factors affecting the HRQOL of patients with gout, few have focused on lifestyle factors. This study aimed to investigate the correlation between lifestyle habits and HRQOL using the GIS in patients with gout.
Methods:
We used data from the Urate-Lowering TheRApy in Gout (ULTRA) registry, a prospective cohort of Korean patients with gout treated at multiple centers nationwide. The patients were aged ≥18 years and met the 2015 American College of Rheumatology/European League Against Rheumatism gout classification criteria. They were asked to complete a GIS and questions regarding their lifestyle habits at enrollment.
Results:
The study included 232 patients. ‘Gout concern overall’ scores in the GIS were significantly lower in patients who exercised more frequently and consumed soft drinks and meat less, and ‘well-being during attack’ scores were significantly lower in patients who consumed vegetables and exercised more frequently. The frequency of vegetable consumption had a negative linear relationship with the ‘well-being during attack’ and ‘gout concern during attack’ scores (p = 0.01, p = 0.001, respectively). The frequency of exercise had a negative linear relationship with the ‘gout concern overall’ and ‘gout concern during attack’ scores (p = 0.04 and p = 0.002, respectively).
Conclusions
Patients with gout who frequently consumed vegetables and exercised regularly experienced less impact of gout, exhibiting a better GIS that represented HRQOL.
9.Comparative outcomes of acute colonic diverticulitis in immunocompromised versus immunocompetent patients: a systematic review and meta-analysis
Jae Gon LEE ; Yong Eun PARK ; Ji Young CHANG ; Hyun Joo SONG ; Duk Hwan KIM ; Young Joo YANG ; Byung Chang KIM ; Shin Hee LEE ; Myung-Won YOU ; Seong-Eun KIM
Intestinal Research 2023;21(4):481-492
Background/Aims:
Immunocompromised patients with acute colonic diverticulitis are at high risk for complications and failure of non-surgical treatment. However, evidence on the comparative outcomes of immunocompromised and immunocompetent patients with diverticulitis is lacking. This systematic review and meta-analysis investigated the outcomes of medical treatment in immunocompromised and immunocompetent patients with diverticulitis.
Methods:
A comprehensive literature search was conducted in PubMed, Embase, and the Cochrane Library. Studies comparing the clinical outcomes of immunocompromised and immunocompetent patients with diverticulitis were included.
Results:
A total of 10 studies with 1,946,461 subjects were included in the quantitative synthesis. The risk of emergency surgery and postoperative mortality after emergency surgery was significantly higher in immunocompromised patients than in immunocompetent patients with diverticulitis (risk ratio [RR], 1.76; 95% confidence interval [CI], 1.31–2.38 and RR, 3.05; 95% CI, 1.70–5.45, respectively). Overall risk of complications associated with diverticulitis was non-significantly higher in immunocompromised than in immunocompetent patients (RR, 1.24; 95% CI, 0.95–1.63). Overall mortality irrespective of surgery was significantly higher in immunocompromised than in immunocompetent patients with diverticulitis (RR, 3.65; 95% CI, 1.73–7.69). By contrast, postoperative mortality after elective surgery was not significantly different between immunocompromised and immunocompetent patients with diverticulitis. In subgroup analysis, the risk of emergency surgery and recurrence was significantly higher in immunocompromised patients with complicated diverticulitis, whereas no significant difference was shown in mild disease.
Conclusions
Immunocompromised patients with diverticulitis should be given the best medical treatment with multidisciplinary approach because they had increased risks of surgery, postoperative morbidity, and mortality than immunocompetent patients.
10.Erratum: Assessment of Disease Severity and Quality of Life in Patients with Atopic Dermatitis from South Korea
Sang Wook SON ; Ji Hyun LEE ; Jiyoung AHN ; Sung Eun CHANG ; Eung Ho CHOI ; Tae Young HAN ; Yong Hyun JANG ; Hye One KIM ; Moon-Bum KIM ; You Chan KIM ; Hyun Chang KO ; Joo Yeon KO ; Sang Eun LEE ; Yang Won LEE ; Bark-Lynn LEW ; Chan Ho NA ; Chang Ook PARK ; Chun Wook PARK ; Kui Young PARK ; Kun PARK ; Young Lip PARK ; Joo Young ROH ; Young-Joon SEO ; Min Kyung SHIN ; Sujin LEE ; Sang Hyun CHO
Annals of Dermatology 2023;35(1):86-87


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