1.Comparison of the antioxidant and anti-inflammatory activities in RAW264.7 Macrophages of Cuscuta australis R. Brown extracts prepared using different extraction methods
Yu-Jin HEO ; Su-Yun LYU ; Mina LEE ; Hae-In LEE
Journal of Nutrition and Health 2024;57(6):619-629
Purpose:
Cuscuta australis R. Brown (CA) is a parasitic plant that attaches to host plants and disrupts the growth, nutrient absorption, and overall development of leguminous plants.However, CA is known to contain various bioactive components, including vitamin A, β-carotene, lutein, and kaempferol, which have demonstrated pharmacological effects in immune responses. This study aims to investigate the potential benefits of CA extracts obtained using different extraction methods to explore its potential as a novel natural resource for applications in the food and pharmaceutical industries.
Methods:
In this study, water (CAW), ethanol (CAE), and hot water (CAHW) extracts of CA were prepared to investigate their antioxidant and anti-inflammatory effects in RAW264.7 cells.
Results:
The CAHW group exhibited the highest levels of antioxidant compounds, such as total polyphenols and flavonoids, resulting in a significantly higher ferric reducing antioxidant power compared to the other groups. The 1,1-diphenyl-2-picrylhydrazyl and 2,2-azino-bis-3-ethylen-benzothiazoline-6-sulfonate radical scavenging activities were also high in the CAHW and CAE groups but were lower compared to the positive control, ascorbic acid. In RAW264.7 cells, CA extracts at concentrations of 50, 100, and 200 μg/mL showed no cytotoxicity, and nitric oxide (NO) production was reduced in a dose-dependent manner.At a concentration of 200 μg/mL, all the CA extracts exhibited significant anti-inflammatory activity by modulating the nuclear factor kappa B signaling pathway, effectively resulting in the down-regulation of inflammation-related genes such as cyclooxygenase-2, inducible NO synthase, tumor necrosis factor-alpha, and interleukin-6 in RAW264.7 cells, with the CAHW extract demonstrating the most potent inhibitory effect among all the CA extract groups.
Conclusion
Overall, CA extraction is effective for both antioxidant and anti-inflammatory activities, with the hot water extraction method proving to be the most effective.
2.Comparison of the antioxidant and anti-inflammatory activities in RAW264.7 Macrophages of Cuscuta australis R. Brown extracts prepared using different extraction methods
Yu-Jin HEO ; Su-Yun LYU ; Mina LEE ; Hae-In LEE
Journal of Nutrition and Health 2024;57(6):619-629
Purpose:
Cuscuta australis R. Brown (CA) is a parasitic plant that attaches to host plants and disrupts the growth, nutrient absorption, and overall development of leguminous plants.However, CA is known to contain various bioactive components, including vitamin A, β-carotene, lutein, and kaempferol, which have demonstrated pharmacological effects in immune responses. This study aims to investigate the potential benefits of CA extracts obtained using different extraction methods to explore its potential as a novel natural resource for applications in the food and pharmaceutical industries.
Methods:
In this study, water (CAW), ethanol (CAE), and hot water (CAHW) extracts of CA were prepared to investigate their antioxidant and anti-inflammatory effects in RAW264.7 cells.
Results:
The CAHW group exhibited the highest levels of antioxidant compounds, such as total polyphenols and flavonoids, resulting in a significantly higher ferric reducing antioxidant power compared to the other groups. The 1,1-diphenyl-2-picrylhydrazyl and 2,2-azino-bis-3-ethylen-benzothiazoline-6-sulfonate radical scavenging activities were also high in the CAHW and CAE groups but were lower compared to the positive control, ascorbic acid. In RAW264.7 cells, CA extracts at concentrations of 50, 100, and 200 μg/mL showed no cytotoxicity, and nitric oxide (NO) production was reduced in a dose-dependent manner.At a concentration of 200 μg/mL, all the CA extracts exhibited significant anti-inflammatory activity by modulating the nuclear factor kappa B signaling pathway, effectively resulting in the down-regulation of inflammation-related genes such as cyclooxygenase-2, inducible NO synthase, tumor necrosis factor-alpha, and interleukin-6 in RAW264.7 cells, with the CAHW extract demonstrating the most potent inhibitory effect among all the CA extract groups.
Conclusion
Overall, CA extraction is effective for both antioxidant and anti-inflammatory activities, with the hot water extraction method proving to be the most effective.
3.Comparison of the antioxidant and anti-inflammatory activities in RAW264.7 Macrophages of Cuscuta australis R. Brown extracts prepared using different extraction methods
Yu-Jin HEO ; Su-Yun LYU ; Mina LEE ; Hae-In LEE
Journal of Nutrition and Health 2024;57(6):619-629
Purpose:
Cuscuta australis R. Brown (CA) is a parasitic plant that attaches to host plants and disrupts the growth, nutrient absorption, and overall development of leguminous plants.However, CA is known to contain various bioactive components, including vitamin A, β-carotene, lutein, and kaempferol, which have demonstrated pharmacological effects in immune responses. This study aims to investigate the potential benefits of CA extracts obtained using different extraction methods to explore its potential as a novel natural resource for applications in the food and pharmaceutical industries.
Methods:
In this study, water (CAW), ethanol (CAE), and hot water (CAHW) extracts of CA were prepared to investigate their antioxidant and anti-inflammatory effects in RAW264.7 cells.
Results:
The CAHW group exhibited the highest levels of antioxidant compounds, such as total polyphenols and flavonoids, resulting in a significantly higher ferric reducing antioxidant power compared to the other groups. The 1,1-diphenyl-2-picrylhydrazyl and 2,2-azino-bis-3-ethylen-benzothiazoline-6-sulfonate radical scavenging activities were also high in the CAHW and CAE groups but were lower compared to the positive control, ascorbic acid. In RAW264.7 cells, CA extracts at concentrations of 50, 100, and 200 μg/mL showed no cytotoxicity, and nitric oxide (NO) production was reduced in a dose-dependent manner.At a concentration of 200 μg/mL, all the CA extracts exhibited significant anti-inflammatory activity by modulating the nuclear factor kappa B signaling pathway, effectively resulting in the down-regulation of inflammation-related genes such as cyclooxygenase-2, inducible NO synthase, tumor necrosis factor-alpha, and interleukin-6 in RAW264.7 cells, with the CAHW extract demonstrating the most potent inhibitory effect among all the CA extract groups.
Conclusion
Overall, CA extraction is effective for both antioxidant and anti-inflammatory activities, with the hot water extraction method proving to be the most effective.
4.Integration of conventional and digital approach in full mouth rehabilitation of a patient with severe tooth wear
On-Yu CHEON ; Jeong-Woo YUN ; Su-Min KIM ; Yu-Ri HEO ; Mee-Kyoung SON
Oral Biology Research 2025;49(1):6-
This report presents the case of severe tooth wear and vertical dimension loss in a 71-year-old male patient. A combined conventional and digital approach was employed for full-mouth rehabilitation. After determining an increase in the vertical dimension of 5.5 mm using an anterior jig and diagnostic wax-up, provisional restorations were fabricated and adjusted throughout the adaptation period.For the fabrication of the final prosthesis, digital methodologies such as oral scanning and occlusal acquisition were performed. To obtain precise margin data, a die model was fabricated using the traditional impression method, followed by model scanning, which was then combined with intraoral scan data. The final prosthesis was made of zirconia to enhance esthetics and strength. Consequently, the treatment enhanced both function and esthetics, leading to high patient satisfaction with the outcomes.
5.Expression of RUNX3 in Human Gastric Cancer.
Sung Hwa JANG ; Dong Gue SHIN ; Il Myung KIM ; Byung Ook YOU ; Jin YOON ; Sang Su PARK ; Sung Gu KANG ; Yun Kyung LEE ; Su Hak HEO ; Ik Hang CHO
Journal of the Korean Gastric Cancer Association 2007;7(4):185-192
PURPOSE: RUNX3, a novel tumor suppressor, is frequently inactivated in gastric cancer. In the present study, we examined the pattern of RUNX3 expression in gastric cancer cells from gastric cancer specimens and the impact of its alteration on clinical outcome. MATERIALS AND METHODS: A total of 124 samples of both gastric cancer and normal tissue were obtained from 124 patients who underwent curative gastrectomy at the Seoul Medical Center from January 2001 to December 2005. RUNX3 expression was determined by immunohistochemical staining, and the results were analyzed. Statistical analysis wabased on clinicopathological findings and differences in survival rates. RESULTS: The mean age of the patients was 61 years, and the male:female ratio was 1.9:1. The expression rate of RUNX3 was 59.7% (74/124). The expression rate was higher in differentiated gastric cancers (nucleus: 9.1%, cytoplasm: 57.6%) than in the undifferentiated types (nucleus: 5.2%, cytoplasm: 46.6%) (P=0.133). The 5-year survival rates according to RUNX3 expression determined from cancer tissue were 88.9% for the nucleus +/- cytoplasm(+) group of patients, 76.1% for the cytoplasm only (+) group of patients, and 65.3% for the RUNX3 negative expression group of patients (P=0.626). Only UICC TNM staging showed statistical significance related to the survival rate, as determined by multivariate analysis. CONCLUSION: The RUNX3 expression rate was higher in differentiated gastric cancer than in the undifferentiated types without significance. Although RUNX3 expression predicted better survival, based on multivariate analysis, the finding was not statistically significant. More cases should be further evaluated.
Cytoplasm
;
Gastrectomy
;
Humans*
;
Multivariate Analysis
;
Neoplasm Staging
;
Prognosis
;
Seoul
;
Stomach Neoplasms*
;
Survival Rate
6.Effects of Acute Exercise on Mitochondrial Function, Dynamics, and Mitophagy in Rat Cardiac and Skeletal Muscles
Su Zi YOO ; Mi Hyun NO ; Jun Won HEO ; Dong Ho PARK ; Ju Hee KANG ; Joon Hee KIM ; Dae Yun SEO ; Jin HAN ; Su Jeen JUNG ; Hyo Bum KWAK
International Neurourology Journal 2019;23(Suppl 1):S22-S31
PURPOSE:
This study aimed to investigate the effects of single-bout exercise on mitochondrial function, dynamics (fusion, fission), and mitophagy in cardiac and skeletal muscles.
METHODS:
Fischer 344 rats (4 months old) were randomly divided into the control (CON) or acute exercise (EX) group (n=10 each). The rats performed a single bout of treadmill exercise for 60 minutes. Mitochondrial function (e.g., O₂ respiration, H₂O₂ emission, Ca²⺠retention capacity), mitochondrial fusion (e.g., Mfn1, Mfn2, Opa1), mitochondrial fission (e.g., Drp1, Fis1), and mitophagy (e.g., Parkin, Pink1, LC3II, Bnip3) were measured in permeabilized cardiac (e.g., left ventricle) and skeletal (e.g., soleus, white gastrocnemius) muscles.
RESULTS:
Mitochondrial O₂ respiration and Ca²⺠retention capacity were significantly increased in all tissues of the EX group compared with the CON group. Mitochondrial H₂O₂ emissions showed tissue-specific results; the emissions showed no significant differences in the left ventricle or soleus (type I fibers) but was significantly increased in the white gastrocnemius (type II fibers) after acute exercise. Mitochondrial fusion and fission were not altered in any tissues of the EX group. Mitophagy showed tissue-specific differences: It was not changed in the left ventricle or white gastrocnemius, whereas Parkin and LC3II were significantly elevated in the soleus muscle.
CONCLUSIONS
A single bout of aerobic exercise may improve mitochondrial function (e.g., O₂ respiration and Ca²⺠retention capacity) in the heart and skeletal muscles without changes in mitochondrial dynamics or mitophagy.
7.Antepartum Expectant Management of Placenta Previa, Inpatient Versus Outpatient.
Sun Hui PARK ; Jae Doc KIM ; Min JEONG ; Yun Su HEO ; Jong Hyeon KIM ; Yong Ju JEONG ; Sung Nam CHO ; Jong Duk KIM
Korean Journal of Obstetrics and Gynecology 2003;46(6):1140-1144
OBJECTIVE: Our purpose was to determine the outcome of inpatient and outpatient management of placenta previa. METHODS: Sixty women with the initial diagnosis of placenta previa at 30 to 37 weeks' gestation who required hospitalization for no or minimal vaginal bleeding were stabilized and then randomized to receive either inpatient or outpatient expectant management. Thirty inpatients were treated at bed rest with minimal ambulation, received corticosteroids until 33 weeks of gestation and underwent ultrasonographic examination at 2 week intervals to assess fetal growth and placental location. Thirty outpatients were discharged after 2 or 3 days of hospitalization, and also received corticosteroids every week until 33 weeks of gestation and underwent ultrasonographic examination at 2 weeks intervals. All subjects who reached 37 weeks' gestation with persistent placenta previa underwent cesarean section electively. RESULTS: There were no differences between inpatients and outpatients for mean age, parity, gestational age at diagnosis, gestational age at first bleeding, and number of prior cesarean sections. There were no significant differences in the maternal and neonatal outcome measures as measured by time pregnancy prolonged, transfusions, cesarean hysterectomy, gestational age at delivery, birth weight, and neonatal morbidity. Significant difference observed only in maternal total hospital stay (p<0.01) as inpatient is 29.5+/-21.4 days and outpatient is 10.1+/-7.5 days. CONCLUSION: In selected patients, outpatient management of placenta previa can be reduced maternal total hospital stay. There were no apparent differences in the maternal and neonatal outcome of the two groups.
Adrenal Cortex Hormones
;
Bed Rest
;
Birth Weight
;
Cesarean Section
;
Diagnosis
;
Female
;
Fetal Development
;
Gestational Age
;
Hemorrhage
;
Hospitalization
;
Humans
;
Hysterectomy
;
Inpatients*
;
Length of Stay
;
Outcome Assessment (Health Care)
;
Outpatients*
;
Parity
;
Placenta Previa*
;
Placenta*
;
Pregnancy
;
Uterine Hemorrhage
;
Walking
8.A Case of Advanced Gastric Cancer Concomitant with Pyogenic Liver Abscess in the Patient with Subtotal Gastrectomy.
Dong Hee PARK ; Nae Yun HEO ; Heon SA-KONG ; Na Ri JEONG ; Su Jin JEONG ; Sung Jin OH ; Kyung Han NAM
The Korean Journal of Gastroenterology 2017;69(2):143-146
The hematogenous spreading of an infectious pathogen via the portal vein from a mucosal injury in the gastrointestinal tract has been considered as one of the pathologic mechanisms of pyogenic liver abscess. Several studies have presented the association between colorectal cancer and pyogenic liver abscess. However, the cases of stomach cancer concomitant with pyogenic liver abscess have rarely been reported in the world. Herein, we present a case of advanced gastric cancer concomitant with pyogenic liver abscess in a patient who previously underwent subtotal gastrectomy due to peptic ulcer perforation.
Colorectal Neoplasms
;
Gastrectomy*
;
Gastrointestinal Tract
;
Humans
;
Liver Abscess, Pyogenic*
;
Peptic Ulcer Perforation
;
Portal Vein
;
Stomach Neoplasms*
9.Rectal Ulcer Developed in Systemic Lupus Erythematosus without Ischemic Colitis
Ki Chang SOHN ; Won Gak HEO ; Min Su CHU ; Eui Joong KIM ; Jong Hyeok CHUNG ; Suck Chei CHOI ; Ki Jung YUN ; Geom Seog SEO
The Korean Journal of Gastroenterology 2019;73(5):299-302
Rectal involvement by systemic lupus erythematosus (SLE) is quite rare. Approximately 14 cases have been reported worldwide, but only one with ischemic colitis has been reported in Korea. A 17-year-old female patient was hospitalized with abdominal pain and hematochezia. Sigmoidoscopy revealed only a simple rectal ulcer without ischemic colitis. cytomegalovirus and bacterial infections were excluded. A sigmoidoscopic rectal biopsy indicated a rectal invasion by SLE, but the patient showed an acute worsening conditions that did not respond to treatment. This paper reports a case of rectal ulcer that developed in SLE without ischemic colitis with a review of the relevant literature.
Abdominal Pain
;
Adolescent
;
Bacterial Infections
;
Biopsy
;
Colitis, Ischemic
;
Cytomegalovirus
;
Female
;
Gastrointestinal Hemorrhage
;
Humans
;
Korea
;
Lupus Erythematosus, Systemic
;
Sigmoidoscopy
;
Ulcer
10.Rectal Ulcer Developed in Systemic Lupus Erythematosus without Ischemic Colitis
Ki Chang SOHN ; Won Gak HEO ; Min Su CHU ; Eui Joong KIM ; Jong Hyeok CHUNG ; Suck Chei CHOI ; Ki Jung YUN ; Geom Seog SEO
The Korean Journal of Gastroenterology 2019;73(5):299-302
Rectal involvement by systemic lupus erythematosus (SLE) is quite rare. Approximately 14 cases have been reported worldwide, but only one with ischemic colitis has been reported in Korea. A 17-year-old female patient was hospitalized with abdominal pain and hematochezia. Sigmoidoscopy revealed only a simple rectal ulcer without ischemic colitis. cytomegalovirus and bacterial infections were excluded. A sigmoidoscopic rectal biopsy indicated a rectal invasion by SLE, but the patient showed an acute worsening conditions that did not respond to treatment. This paper reports a case of rectal ulcer that developed in SLE without ischemic colitis with a review of the relevant literature.
Abdominal Pain
;
Adolescent
;
Bacterial Infections
;
Biopsy
;
Colitis, Ischemic
;
Cytomegalovirus
;
Female
;
Gastrointestinal Hemorrhage
;
Humans
;
Korea
;
Lupus Erythematosus, Systemic
;
Sigmoidoscopy
;
Ulcer