1.Development of an Intervertebral Disc Degeneration Model using Newzealand White Rabbits.
Kwangyoung SO ; Yongsoo CHOI ; Daehyun YOON ; Jihoon RYU ; Brian JOHNSTONE ; Jung U YOO
Journal of Korean Society of Spine Surgery 2011;18(4):179-185
STUDY DESIGN: An experimental animal study. OBJECTIVES: To create a more appropriate disc degeneration model which shows how Interleukin 1alpha may induce the activation of metalloproteinases within the nucleus pulposus. SUMMARY OF LITERATURE REVIEW: There are few disc degeneration models wherein there is activation of metalloproteinases within the nucleus pulposus without structural destruction of the intervertebral disc. MATERIALS AND METHODS: Three consecutive intervertebral discs in New Zealand White Rabbits were exposed. Each disc was injected with 0.1ml of saline (Saline group), 0.1ml of 1microg/ml (IL-1 group), 0.1ml of 10microg/ml (IL-10 group) of IL-1alpha through a 30-gauge needle. The lumbar spine was harvested 12 weeks after operation. We then analyzed radiographic findings and histological changes. RESULTS: There was no difference in the radiological disc height index among the three groups; 0.071 in saline group, 0.045 in IL-1 group and 0.058 in IL-10 group (p=0.194). The histological cellularity of the nucleus pulposus revealed a decrease in the number of cells (p=0.0001, 1.42 in saline group vs. 3.00 in IL-10 group; p=0.001, 2.00 in IL-1 group and 3.00 in IL-10). The histological matrix of the nucleus pulposus was 1.42 in saline group and 2.42 in IL-10(p=0.007), which meant that there had been condensation of the extracellular nucleus pulposus matrix. CONCLUSIONS: The results of this study demonstrate that interleukin-1alpha may contribute to degradation of the nucleus pulposus. This is useful for future study into the effects of the cytokine inhibitor on matrix regeneration and cellularity in the nucleus pulposus in intervertebral disc disease.
Animals
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European Continental Ancestry Group
;
Humans
;
Interleukin-1
;
Interleukin-10
;
Interleukin-1alpha
;
Intervertebral Disc
;
Intervertebral Disc Degeneration
;
Intervertebral Disc Displacement
;
Metalloproteases
;
Needles
;
Rabbits
;
Regeneration
;
Spine
2.Esophageal Stricture Caused by the Ingestion of Undissolved Picosulfate Powder
Daehyun KIM ; Byungha CHO ; Jong Wook CHOI ; Ki Bae KIM ; Seon Mee PARK
Clinical Endoscopy 2021;54(1):122-126
Picosulfate solution is widely used as a small volume bowel cleansing agent and is considered to be effective and relatively safe. A case of a 75-year-old woman ingested picosulfate powder and drank a small volume of water, subsequently experienced severe burning pain in the chest. Endoscopy was performed and showed a submucosal hemorrhage and exudative ulcers at the mid to lower esophagus. At 2 weeks, her symptoms improved with conservative treatment. However, liquid food dysphagia developed 11 weeks after ingestion. A follow-up endoscopy revealed multiple esophageal strictures, which were treated with a fully covered metal stent and esophageal balloon dilation. Consequently, the esophageal strictures improved after one year. As this case demonstrates, detailed information about picosulfate powder ingestion after dissolving it in more than 200 mL of water should be presented to patients to avoid esophageal injury.
3.Effect of paternal folate deficiency on placental folate content and folate receptor alpha expression in rats.
Hye Won KIM ; Yun Jung CHOI ; Ki Nam KIM ; Tsunenobu TAMURA ; Namsoo CHANG
Nutrition Research and Practice 2011;5(2):112-116
We investigated the effect of paternal folate status on folate content and expression of the folate transporter folate receptor alpha (FRalpha) in rat placental tissues. Rats were mated after males were fed a diet containing 0 mg of folic acid/kg of diet (paternal folate-deficient, PD) or 8 mg folic acid/kg of diet (paternal folate-supplemented, PS) for 4 weeks. At 20 days of gestation, the litter size, placental weight, and fetal weight were measured, and placental folate content (n = 8/group) and expression of FRalpha (n = 10/group) were analyzed by microbiological assay and Western blot analysis, respectively. Although there was no difference observed in litter size or fetal weight, but significant reduction (10%) in the weight of the placenta was observed in the PD group compared to that in the PS group. In the PD group, placental folate content was significantly lower (by 35%), whereas FRalpha expression was higher (by 130%) compared to the PS group. Our results suggest that paternal folate status plays a critical role in regulating placental folate metabolism and transport.
Animals
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Blotting, Western
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Diet
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Fetal Weight
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Folate Receptor 1
;
Folic Acid
;
Humans
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Litter Size
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Male
;
Placenta
;
Pregnancy
;
Rats
4.Intrahousehold discrepancy regarding food insecurity within intermarried couples of Vietnamese wives and Korean husbands in South Korea.
Ha Ney CHOI ; Hye Won CHUNG ; Ji Yun HWANG ; Namsoo CHANG
Nutrition Research and Practice 2011;5(5):471-480
Our previous studies have demonstrated the inadequate nutritional status of Vietnamese female marriage immigrants in Korea. Major possible reasons include food insecurity due to economic problems as well as a lack of adjustment to unfamiliar Korean foods and limited access to Vietnamese foods; however, no study has investigated food insecurity among such intermarried couples. This study was performed to investigate the prevalence of food insecurity in Korean-husband-Vietnamese-wife couples and to determine whether they exhibit an intrahousehold discrepancy regarding food insecurity. A cross-sectional analysis of the Cohort of Intermarried Women in Korea study was performed with 84 intermarried couples. Among the 84 Vietnamese immigrants, 48.8% and 41.7% had food insecurity due to economic problems and a lack of foods appealing to their appetite, respectively. There was a marked discrepancy in reporting food insecurity between Vietnamese wives (22.6-38.1%) and their Korean husbands (6.0-15.5%). Vietnamese wives were five and two times more food-insecure due to economic problems and no foods appealing to their appetite, respectively, than their Korean spouses. A follow-up study is needed to investigate the causes of this discrepancy and ways of reducing food insecurity among female marriage immigrants living in low-income, rural communities.
Appetite
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Asian Continental Ancestry Group
;
Cohort Studies
;
Cross-Sectional Studies
;
Emigrants and Immigrants
;
Family Characteristics
;
Female
;
Food Supply
;
Humans
;
Korea
;
Marriage
;
Nutritional Status
;
Prevalence
;
Republic of Korea
;
Rural Population
;
Spouses
5.Individualized diabetes nutrition education improves compliance with diet prescription.
Hae mi LIM ; Ji Eun PARK ; Young Ju CHOI ; Kap Bum HUH ; Wha Young KIM
Nutrition Research and Practice 2009;3(4):315-322
This study was designed to evaluate the effect of individualized diabetes nutrition education. The nutrition education program was open to all type 2 diabetes patients visiting the clinic center and finally 67 patients agreed to join the program. To compare with 67 education group subjects, 34 subjects were selected by medical record review. The education program consisted of one class session for 1-2 hours long in a small group of 4~5 patients. A meal planning using the food exchange system was provided according to the diet prescription and food habits of each subject. Measurements of clinical outcomes and dietary intakes were performed at baseline and 3 months after the education session. After 3 months, subjects in education group showed improvement in dietary behavior and food exchange knowledge. In education group, intakes of protein, calcium, phosphorus, vitamin B2, and folate per 1,000 kcal/day were significantly increased and cholesterol intake was significantly decreased. They also showed significant reductions in body weight, body mass index (BMI), and fasting blood concentrations of glucose (FBS), HbA1c, total cholesterol, and triglyceride. However, no such improvements were observed in control group. To evaluate telephone consultation effect, after the nutrition education session, 34 subjects of the 67 education group received telephone follow-up consultation once a month for 3 months. The others (33 subjects) had no further contact after the nutrition education session. Subjects in the telephone follow-up group showed a decrease in BMI, FBS, and HbA1c. Moreover, the subjects who did not receive telephone follow-up also showed significant decreases in BMI and FBS. These results indicated that our individually planned education program for one session was effective in rectifying dietary behavior problems and improving food exchange knowledge, and quality of diet, leading to an improvement in the clinical outcomes. In conclusion, our individualized nutrition education was effective in adherence to diet recommendation and in improving glycemic control and lipid concentrations, while follow-up by telephone helped to encourage the adherence to diet prescription.
Body Mass Index
;
Body Weight
;
Calcium
;
Cholesterol
;
Compliance
;
Diet
;
Fasting
;
Folic Acid
;
Follow-Up Studies
;
Food Habits
;
Glucose
;
Humans
;
Meals
;
Medical Records
;
Phosphorus
;
Prescriptions
;
Riboflavin
;
Telephone
6.Anti-stress effects of ginseng via down-regulation of tyrosine hydroxylase (TH) and dopamine beta-hydroxylase (DBH) gene expression in immobilization-stressed rats and PC12 cells.
Yangha KIM ; Eun Ha CHOI ; Miae DOO ; Joo Yeon KIM ; Chul Jin KIM ; Chong Tai KIM ; In Hwan KIM
Nutrition Research and Practice 2010;4(4):270-275
Catecholamines are among the first molecules that displayed a kind of response to prolonged or repeated stress. It is well established that long-term stress leads to the induction of catecholamine biosynthetic enzymes such as tyrosine hydroxylase (TH) and dopamine beta-hydroxylase (DBH) in adrenal medulla. The aim of the present study was to evaluate the effects of ginseng on TH and DBH mRNA expression. Repeated (2 h daily, 14 days) immobilization stress resulted in a significant increase of TH and DBH mRNA levels in rat adrenal medulla. However, ginseng treatment reversed the stress-induced increase of TH and DBH mRNA expression in the immobilization-stressed rats. Nicotine as a ligand of the nicotinic acetylcholine receptor (nAChR) in adrenal medulla stimulates catecholamine secretion and activates TH and DBH gene expression. Nicotine treatment increased mRNA levels of TH and DBH by 3.3- and 3.1-fold in PC12 cells. The ginseng total saponin exhibited a significant reversal in the nicotine-induced increase of TH and DBH mRNA expression, decreasing the mRNA levels of TH and DBH by 57.2% and 48.9%, respectively in PC12 cells. In conclusion, immobilization stress induced catecholamine biosynthetic enzymes gene expression, while ginseng appeared to restore homeostasis via suppression of TH and DBH gene expression. In part, the regulatory activity in the TH and DBH gene expression of ginseng may account for the anti-stress action produced by ginseng.
Adrenal Medulla
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Animals
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Catecholamines
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Dopamine
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Dopamine beta-Hydroxylase
;
Down-Regulation
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Gene Expression
;
Homeostasis
;
Immobilization
;
Nicotine
;
Panax
;
PC12 Cells
;
Rats
;
Receptors, Nicotinic
;
RNA, Messenger
;
Saponins
;
Tyrosine
;
Tyrosine 3-Monooxygenase
7.Anti-phospholipase A2 receptor antibody as a prognostic marker in patients with primary membranous nephropathy.
Eun Joo SONG ; Kye Hwa JEONG ; Young Ae YANG ; Jeong Hoon LIM ; Hee Yeon JUNG ; Ji Young CHOI ; Jang Hee CHO ; Chan Duck KIM ; Yong Lim KIM ; Sun Hee PARK
Kidney Research and Clinical Practice 2018;37(3):248-256
BACKGROUND: Phospholipase A2 receptor (PLA2R) has been identified as a major autoantigen in primary membranous nephropathy (MN). We evaluated the association between anti-PLA2R antibodies and clinical outcome in Korean patients with primary MN. METHODS: A total of 66 patients with biopsy-proven MN were included. Serum level of anti-PLA2R antibodies was measured by enzyme-linked immunosorbent assay. Biochemical parameters were estimated initially and at follow-up. RESULTS: Anti-PLA2R antibodies were detected in 52.1% and 27.8% of patients with primary and secondary MN, respectively. Forty-eight patients with primary MN were grouped based on presence or absence of anti-PLA2R antibodies. Proteinuria was more severe in anti-PLA2R-positive patients than in anti-PLA2R-negative patients (urine protein/creatinine ratio 7.922 ± 3.985 g/g vs. 4.318 ± 3.304 g/g, P = 0.001), and anti-PLA2R antibody level was positively correlated with proteinuria. The incidence of chronic kidney disease stage ≥ 3 was higher in anti-PLA2R-positive patients compared with anti-PLA2R-negative patients (P = 0.004). The probabilities of spontaneous remission were higher in anti-PLA2R-negative patients compared with anti-PLA2R-positive patients (P < 0.001). Multivariate analysis demonstrated that anti-PLA2R antibodies are an independent risk factor for developing chronic kidney disease stage ≥ 3 and for not reaching spontaneous remission. CONCLUSION: Detection of anti-PLA2R antibodies at diagnosis in patients with primary MN can predict prognosis and guide treatment decisions.
Antibodies
;
Diagnosis
;
Enzyme-Linked Immunosorbent Assay
;
Follow-Up Studies
;
Glomerulonephritis, Membranous*
;
Humans
;
Incidence
;
Multivariate Analysis
;
Prognosis
;
Proteinuria
;
Receptors, Phospholipase A2
;
Remission, Spontaneous
;
Renal Insufficiency, Chronic
;
Risk Factors
8.Anti-phospholipase A2 receptor antibody as a prognostic marker in patients with primary membranous nephropathy Volume 37, Issue 3, September 2018, Pages 248–256.
Eun Joo SONG ; Kye Hwa JEONG ; Young Ae YANG ; Jeong Hoon LIM ; Hee Yeon JUNG ; Ji Young CHOI ; Jang Hee CHO ; Chan Duck KIM ; Yong Lim KIM ; Sun Hee PARK
Kidney Research and Clinical Practice 2018;37(4):426-426
In the article, there was an error in Figure 3.
Glomerulonephritis, Membranous*
;
Humans
9.Synovectomy of the Rheumatoid Knee Using Intra-articular Injection of 165Dy Hydroxide Macroaggregates
Sugjun KIM ; Sooyoung LEE ; Daegeun JEON ; Jongseok LEE ; Taewan KIM ; Donghwan CHUNG ; Hyunsoo PARK ; Sungwoon HONG ; Sangmoo LIM ; Changwoon CHOI ; Seongyou KIM ; Daehyun YOO ; Sangcheol BAE ; Inhong LEE ; Sungsoo JUNG ; Jaebum JUN
The Journal of the Korean Orthopaedic Association 1996;31(5):1013-1017
165Dy Hydroxide Macroaggregates(165Dy HMA) has a short half life(2.3 hours) and a size range of 3-5µm that give the advantage of reduced leakage and a shorter hospital stay. This report will show the results of a prospective open study on the efficacy and safety of 165Dy HMA in 178 knees of 141 patients with chronic synovitis refractory to conventional antirheumatic therapy. The final global assessment was classified as good, fair or poor. Extra-articular leakage of 165Dy HMA was determined by the scintigraphic evaluation of liver, groin and knee joints. The optimum radiation dose was 250 mCi. The mean follow up periods were 32.4(14-112) weeks. Thirty seven percent of the knees showed good results, 48% fair results and 15% poor results. In the knees with stage I radiographic changes, 82% showed improvement including 32% of the patients with good results. In the knees with stage II radiographic changes, 90% showed improvement including 42% of the patients with good results. The mean period of improvement for the 158 knees that responded to treatment was 41.4(24-106) weeks. Leakage of radioactivity from the injected joint was minimal. Adverse reactions were rare(radiation burn : 4 cases, transient postinjection swelling : 14 cases). In conclusion, 165Dy HMA radiation synovectomy is a safe and useful therapy for chromic synovitis of the rheumatoid knees.
Arthritis, Rheumatoid
;
Burns
;
Follow-Up Studies
;
Groin
;
Humans
;
Injections, Intra-Articular
;
Joints
;
Knee Joint
;
Knee
;
Length of Stay
;
Liver
;
Prospective Studies
;
Radioactivity
;
Synovitis
10.Liquid-Based Cytology of Villoglandular Adenocarcinoma of the Cervix: A Report of 3 Cases.
Younghwa CHOI ; Haeryoung KIM ; Haiyoung CHOI ; Daehyun HWANG ; Gheeyoung CHOE ; Jin Haeng CHUNG ; So Yeon PARK ; Hye Seung LEE ; Jin Ho PAIK ; Hyo Jin PARK
Korean Journal of Pathology 2012;46(2):215-220
Villoglandular adenocarcinoma (VGA) is a rare subtype of cervical adenocarcinoma with a more favorable prognosis compared to conventional adenocarcinomas. Although the tumors are usually recognized on colposcopic examination due to the mainly exophytic growth pattern, they may be underdiagnosed as benign lesions by cytology because of their minimal cytologic atypia. We report the liquid-based cytology (LBC) findings of three histologically confirmed VGAs which we have recently identified. They were characterized by hypercellular smears on low-power examination with smooth-bordered three-dimensional papillary fragments. The nuclei were relatively uniform with irregular nuclear membranes. Nucleoli were small but distinct and macronucleoli were also seen. The abnormal architectural patterns such as papillary structures and nuclear overlapping and nuclear hyperchromasia are important clues to the diagnosis of VGA. In addition, nuclear membrane irregularity and prominent nucleoli can be recognized on LBC specimens, further facilitating its diagnosis.
Adenocarcinoma
;
Nuclear Envelope
;
Prognosis
;
Uterine Cervical Neoplasms