1.Jolkinolide B Ameliorates Liver Inflammation and Lipogenesis by Regulating JAK/STAT3 Pathway
Hye-Rin NOH ; Guoyan SUI ; Jin Woo LEE ; Feng WANG ; Jeong-Su PARK ; Yuanqiang MA ; Hwan MA ; Ji-Won JEONG ; Dong-Su SHIN ; Xuefeng WU ; Bang-Yeon HWANG ; Yoon Seok ROH
Biomolecules & Therapeutics 2024;32(6):793-800
Hepatic dysregulation of lipid metabolism exacerbates inflammation and enhances the progression of metabolic dysfunction-associated steatotic liver disease (MASLD). STAT3 has been linked to lipid metabolism and inflammation. Jolkinolide B (JB), derived from Euphorbia fischeriana, is known for its pharmacological anti-inflammatory and anti-tumor properties. Therefore, this study investigated whether JB affects MASLD prevention by regulating STAT3 signaling. JB attenuated steatosis and inflammatory responses in palmitic acid (PA)-treated hepatocytes. Additionally, JB treatment reduced the mRNA expression of de-novo lipogenic genes, such as acetyl-CoA carboxylase and stearoyl-CoA desaturase 1. Interestingly, JB-mediated reduction in inflammation and lipogenesis was dependent on STAT3 signaling. JB consistently modulated mitochondrial dysfunction and the mRNA expression of inflammatory cytokines by inhibiting PA-induced JAK/STAT3 activation. This study suggests that JB is a potential therapeutic agent to prevent major stages of MASLD through inhibition of JAK/STAT3 signaling in hepatocytes.
2.Jolkinolide B Ameliorates Liver Inflammation and Lipogenesis by Regulating JAK/STAT3 Pathway
Hye-Rin NOH ; Guoyan SUI ; Jin Woo LEE ; Feng WANG ; Jeong-Su PARK ; Yuanqiang MA ; Hwan MA ; Ji-Won JEONG ; Dong-Su SHIN ; Xuefeng WU ; Bang-Yeon HWANG ; Yoon Seok ROH
Biomolecules & Therapeutics 2024;32(6):793-800
Hepatic dysregulation of lipid metabolism exacerbates inflammation and enhances the progression of metabolic dysfunction-associated steatotic liver disease (MASLD). STAT3 has been linked to lipid metabolism and inflammation. Jolkinolide B (JB), derived from Euphorbia fischeriana, is known for its pharmacological anti-inflammatory and anti-tumor properties. Therefore, this study investigated whether JB affects MASLD prevention by regulating STAT3 signaling. JB attenuated steatosis and inflammatory responses in palmitic acid (PA)-treated hepatocytes. Additionally, JB treatment reduced the mRNA expression of de-novo lipogenic genes, such as acetyl-CoA carboxylase and stearoyl-CoA desaturase 1. Interestingly, JB-mediated reduction in inflammation and lipogenesis was dependent on STAT3 signaling. JB consistently modulated mitochondrial dysfunction and the mRNA expression of inflammatory cytokines by inhibiting PA-induced JAK/STAT3 activation. This study suggests that JB is a potential therapeutic agent to prevent major stages of MASLD through inhibition of JAK/STAT3 signaling in hepatocytes.
3.Jolkinolide B Ameliorates Liver Inflammation and Lipogenesis by Regulating JAK/STAT3 Pathway
Hye-Rin NOH ; Guoyan SUI ; Jin Woo LEE ; Feng WANG ; Jeong-Su PARK ; Yuanqiang MA ; Hwan MA ; Ji-Won JEONG ; Dong-Su SHIN ; Xuefeng WU ; Bang-Yeon HWANG ; Yoon Seok ROH
Biomolecules & Therapeutics 2024;32(6):793-800
Hepatic dysregulation of lipid metabolism exacerbates inflammation and enhances the progression of metabolic dysfunction-associated steatotic liver disease (MASLD). STAT3 has been linked to lipid metabolism and inflammation. Jolkinolide B (JB), derived from Euphorbia fischeriana, is known for its pharmacological anti-inflammatory and anti-tumor properties. Therefore, this study investigated whether JB affects MASLD prevention by regulating STAT3 signaling. JB attenuated steatosis and inflammatory responses in palmitic acid (PA)-treated hepatocytes. Additionally, JB treatment reduced the mRNA expression of de-novo lipogenic genes, such as acetyl-CoA carboxylase and stearoyl-CoA desaturase 1. Interestingly, JB-mediated reduction in inflammation and lipogenesis was dependent on STAT3 signaling. JB consistently modulated mitochondrial dysfunction and the mRNA expression of inflammatory cytokines by inhibiting PA-induced JAK/STAT3 activation. This study suggests that JB is a potential therapeutic agent to prevent major stages of MASLD through inhibition of JAK/STAT3 signaling in hepatocytes.
4.Isolation of High Purity Mouse Mesenchymal Stem Cells through Depleting Macrophages Using Liposomal Clodronate
Ju Han SONG ; Jung-Woo KIM ; Mi Nam LEE ; Sin-Hye OH ; Xianyu PIAO ; Zhao WANG ; Seung-Hee KWON ; Ok-Su KIM ; Jeong-Tae KOH
Tissue Engineering and Regenerative Medicine 2022;19(3):565-575
BACKGROUND:
The use of mouse bone marrow mesenchymal stem cells (mBMSCs) represents a promising strategy for performing preclinical studies in the field of cell-based regenerative medicine; however, mBMSCs obtained via conventional isolation methods have two drawbacks, i.e., (i) they are heterogeneous due to frequent macrophage contamination, and (ii) they require long-term culturing for expansion.
METHODS:
In the present study, we report a novel strategy to generate highly pure mBMSCs using liposomal clodronate.This approach is based on the properties of the two cell populations, i.e., BMSCs (to adhere to the plasticware in culture dishes) and macrophages (to phagocytose liposomes).
RESULTS:
Liposomal clodronate added during the first passage of whole bone marrow culture was selectively engulfed by macrophages in the heterogeneous cell population, resulting in their effective elimination without affecting the MSCs.This method allowed the generation of numerous high-purity Sca-1 + CD44 + F4/80 - mBMSCs ([ 95%) with just one passaging. Comparative studies with mBMSCs obtained using conventional methods revealed that the mBMSCs obtained in the present study had remarkably improved experimental utilities, as demonstrated by in vitro multilineage differentiation and in vivo ectopic bone formation assays.
CONCLUSION
Our newly developed method, which enables the isolation of mBMSCs using simple and convenient protocol, will aid preclinical studies based on the use of MSCs.
5.Hypoglycemic Cognitive Impairment Presenting as Anomic Aphasia.
Chan Hyuk LEE ; Seung Ho JEON ; Ju Hee CHAE ; Su Jeong WANG ; Byoung Min JEONG ; Hyun Jun SHIN ; Han Uk RYU ; Tae Ho YANG ; Man Wook SEO ; Byoung Soo SHIN
Journal of the Korean Neurological Association 2017;35(3):176-178
No abstract available.
Anomia*
;
Cognition Disorders*
;
Hypoglycemia
6.Concurrence of Acute Cerebral Infarction and Peripheral Neuropathy Associated with Hypereosinophilic Syndrome.
Chan Hyuk LEE ; Seung Ho JEON ; Ju Hee CHAE ; Su Jeong WANG ; Byoung Min JEONG ; Hyun Jun SHIN ; Han Uk RYU ; Tae Ho YANG ; Man Wook SEO ; Byoung Soo SHIN
Journal of the Korean Neurological Association 2017;35(3):138-141
Hypereosinophilic syndrome is a rare disorder involving the eosin concentration being elevated to more than 1500/µL in the peripheral blood for 6 months, and it causes various complications in the heart, skin, and nervous and respiratory systems. The simultaneous occurrence of neurological complications of hypereosinophilic syndrome is rare. Here we report a patient with hypereosinophilic syndrome who suffered from acute cerebral infarction and peripheral neuropathy during the same period.
Cerebral Infarction*
;
Eosine Yellowish-(YS)
;
Heart
;
Humans
;
Hypereosinophilic Syndrome*
;
Peripheral Nervous System Diseases*
;
Respiratory System
;
Skin
7.Interposition of the Posterior Cruciate Ligament into the Medial Compartment of the Knee Joint on Coronal Magnetic Resonance Imaging.
Hyun Su KIM ; Young Cheol YOON ; Ki Jeong PARK ; Joon Ho WANG ; Bong Keun CHOE
Korean Journal of Radiology 2016;17(2):239-244
OBJECTIVE: The purpose of our study was to evaluate the overall prevalence and clinical significance of interposition of the posterior cruciate ligament (PCL) into the medial compartment of the knee joint in coronal magnetic resonance imaging (MRI). MATERIALS AND METHODS: We retrospectively reviewed 317 consecutive patients referred for knee MRI at our institution between October 2009 and December 2009. Interposition of the PCL into the medial compartment of the knee joint on proton coronal MRI was evaluated dichotomously (i.e., present or absent). We analyzed the interposition according to its prevalence as well as its relationship with right-left sidedness, gender, age, and disease categories (osteoarthritis, anterior cruciate ligament tear, and medial meniscus tear). RESULTS: Prevalence of interposition of PCL into the medial compartment of the knee joint was 47.0% (149/317). There was no right (50.0%, 83/166) to left (43.7%, 66/151) or male (50.3%, 87/173) to female (43.1%, 62/144) differences in the prevalence. There was no significant association between the prevalence and age, or the disease categories. CONCLUSION: Interposition of the PCL into the medial compartment of the knee joint is observed in almost half of patients on proton coronal MRI of the knee. Its presence is not associated with any particular factors including knee pathology and may be regarded as a normal MR finding.
Adolescent
;
Adult
;
Aged
;
Child
;
Female
;
Humans
;
Image Processing, Computer-Assisted
;
Knee Joint/*radiography
;
*Magnetic Resonance Imaging
;
Male
;
Menisci, Tibial/radiography
;
Middle Aged
;
Osteoarthritis/diagnosis/epidemiology/radiography
;
Posterior Cruciate Ligament/*radiography
;
Prevalence
;
Retrospective Studies
;
Young Adult
8.The Benefits of Combination Therapy with Esomeprazole and Rebamipide in Symptom Improvement in Reflux Esophagitis: An International Multicenter Study.
Su Jin HONG ; Soo Heon PARK ; Jeong Seop MOON ; Woon Geon SHIN ; Jae Gyu KIM ; Yong Chan LEE ; Dong Ho LEE ; Jae Young JANG ; Jae J KIM ; Hang Lak LEE ; Sang Woo LEE ; Young HWANGBO ; Jianming XU ; Bangmao WANG ; Zhanxiong XUE ; Fei LIU ; Yaozong YUAN ; Somchai LEELAKUSOLVONG ; Frederick DY
Gut and Liver 2016;10(6):910-916
BACKGROUND/AIMS: To investigate the effects of esomeprazole and rebamipide combination therapy on symptomatic improvement in patients with reflux esophagitis. METHODS: A total of 501 patients with reflux esophagitis were randomized into one of the following two treatment regimens: 40 mg esomeprazole plus 300 mg rebamipide daily (combination therapy group) or 40 mg esomeprazole daily (monotherapy group). We used a symptom questionnaire that evaluated heartburn, acid regurgitation, and four upper gastrointestinal symptoms. The primary efficacy end point was the mean decrease in the total symptom score. RESULTS: The mean decreases in the total symptom score at 4 weeks were estimated to be −18.1±13.8 in the combination therapy group and −15.1±11.9 in the monotherapy group (p=0.011). Changes in reflux symptoms from baseline after 4 weeks of treatment were −8.4±6.6 in the combination therapy group and −6.8±5.9 in the monotherapy group (p=0.009). CONCLUSIONS: Over a 4-week treatment course, esomeprazole and rebamipide combination therapy was more effective in decreasing the symptoms of reflux esophagitis than esomeprazole monotherapy.
Esomeprazole*
;
Esophagitis, Peptic*
;
Heartburn
;
Humans
9.The Benefits of Combination Therapy with Esomeprazole and Rebamipide in Symptom Improvement in Reflux Esophagitis: An International Multicenter Study.
Su Jin HONG ; Soo Heon PARK ; Jeong Seop MOON ; Woon Geon SHIN ; Jae Gyu KIM ; Yong Chan LEE ; Dong Ho LEE ; Jae Young JANG ; Jae J KIM ; Hang Lak LEE ; Sang Woo LEE ; Young HWANGBO ; Jianming XU ; Bangmao WANG ; Zhanxiong XUE ; Fei LIU ; Yaozong YUAN ; Somchai LEELAKUSOLVONG ; Frederick DY
Gut and Liver 2016;10(6):910-916
BACKGROUND/AIMS: To investigate the effects of esomeprazole and rebamipide combination therapy on symptomatic improvement in patients with reflux esophagitis. METHODS: A total of 501 patients with reflux esophagitis were randomized into one of the following two treatment regimens: 40 mg esomeprazole plus 300 mg rebamipide daily (combination therapy group) or 40 mg esomeprazole daily (monotherapy group). We used a symptom questionnaire that evaluated heartburn, acid regurgitation, and four upper gastrointestinal symptoms. The primary efficacy end point was the mean decrease in the total symptom score. RESULTS: The mean decreases in the total symptom score at 4 weeks were estimated to be −18.1±13.8 in the combination therapy group and −15.1±11.9 in the monotherapy group (p=0.011). Changes in reflux symptoms from baseline after 4 weeks of treatment were −8.4±6.6 in the combination therapy group and −6.8±5.9 in the monotherapy group (p=0.009). CONCLUSIONS: Over a 4-week treatment course, esomeprazole and rebamipide combination therapy was more effective in decreasing the symptoms of reflux esophagitis than esomeprazole monotherapy.
Esomeprazole*
;
Esophagitis, Peptic*
;
Heartburn
;
Humans
10.Optimal hemoglobin level for anemia treatment in a cohort of hemodialysis patients.
Mi Yeon JUNG ; Soon Young HWANG ; Yu Ah HONG ; Su Young OH ; Jae Hee SEO ; Young Mo LEE ; Sang Won PARK ; Jung Sun KIM ; Joon Kwang WANG ; Jeong Yup KIM ; Ji Eun LEE ; Gang Jee KO ; Heui Jung PYO ; Young Joo KWON
Kidney Research and Clinical Practice 2015;34(1):20-27
BACKGROUND: Anemia is a major risk factor that contributes to mortality in patients with chronic kidney disease. There is controversy over the optimal hemoglobin (Hb) target in these patients. This study investigated the association between Hb level and mortality in a cohort of hemodialysis (HD) patients in Korea. METHODS: This study was a multicenter prospective observational study of maintenance HD patients that was performed for 5 years in western Seoul, Korea. Three hundred and sixty-two participants were enrolled. Laboratory values and mortality were accessed every 6 months. Repeated measures of laboratory values in each interval were averaged to obtain one semiannual mean value. The Hb values were divided into six groups: (1) Hb<9 g/dL; (2) 9 g/dL< or =Hb<10 g/dL; (3) 10 g/dL< or =Hb<11 g/dL; (4) 11 g/dL< or =Hb<12 g/dL; (5) 12 g/dL< or =Hb<13 g/dL; and (6) Hb> or =13 g/dL. We analyzed the odds ratio for all-cause mortality, based on the Hb group, and adjusted for demographics and various laboratory values. Statistics were performed with SAS, version 9.1 software (SAS Institute Inc., Cary, NC, USA). RESULTS: Mortality odds ratios relative to the reference group (10-11 g/dL) in the fully adjusted model were 3.61 for<9 g/dL; 3.17 for 9-10 g/dL*; 4.65 for 11-12 g/dL*; 5.50 for 12-13 g/dL*; and 2.05 for> or =13 g/dL (* indicates P<0.05). CONCLUSION: In this study, a Hb level of 10-11 g/dL was associated with the lowest mortality among the groups with Hb level<13 g/dL. Larger interventional trials are warranted to determine the optimal Hb target for Korean HD patients.
Anemia*
;
Cohort Studies*
;
Demography
;
Humans
;
Korea
;
Mortality
;
Observational Study
;
Odds Ratio
;
Prospective Studies
;
Renal Dialysis*
;
Renal Insufficiency, Chronic
;
Risk Factors
;
Seoul

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