1.Soybean isoflavone extract improves glucose tolerance and raises the survival rate in streptozotocin-induced diabetic rats.
Jee Youn SHIM ; Kwang Ok KIM ; Bo Hyun SEO ; Hye Sung LEE
Nutrition Research and Practice 2007;1(4):266-272
The present study evaluated the effect of various dosages of soybean isoflavone extract on body weight changes, glucose tolerance and liver function in streptozotocin-induced diabetic rats. One group of normal rats (normal control) was fed an AIN-76-based experimental diet and four groups of diabetic rats were fed the same diet supplemented with four different levels of soybean isoflavone extract for seven weeks. The daily dosages of pure isoflavone for four diabetic groups were set to be 0 mg (diabetic control), 0.5 mg (ISO-I), 3.0 mg (ISO-II) and 30.0 mg (ISO-III) per kilogram of body weight, respectively. The daily consumption of isoflavone at the level of 3.0mg per kilogram of body weight resulted in the suppression of body weight loss and increased the survival rate of diabetic animals one and half times compared to that of the diabetic control group. Blood glucose levels in a fasting state and after the oral administration of glucose were significantly lower in the ISO-II group during the oral glucose tolerance test. The ISO-II group showed a tendency to elongate the gastrointestinal transit time. The activity of serum aminotransferases, indicator of liver function, was not negatively affected by any intake level of isoflavone. The present study demonstrated that the soybean isoflavone extract may be beneficial to diabetic animals by improving their glucose tolerance and suppressing weight loss without incurring hepatotoxicity at the daily dosage of 3.0 mg per kg of body weight.
Administration, Oral
;
Animals
;
Blood Glucose
;
Body Weight
;
Body Weight Changes
;
Diet
;
Fasting
;
Gastrointestinal Transit
;
Glucose Tolerance Test
;
Glucose*
;
Liver
;
Rats*
;
Soybeans*
;
Streptozocin
;
Survival Rate*
;
Transaminases
;
Weight Loss
2.Effects of soybean isoflavone extract on the plasma lipid profiles and antioxidant enzyme activity in streptozotocin-induced diabetic rats.
Jee youn SHIM ; Yoo Jung KIM ; Hye Sung LEE
Nutrition Research and Practice 2008;2(4):218-226
The present study evaluated the effects of various dosages of soybean isoflavone extract on lipid profiles, lipid peroxidation and antioxidant activities in streptozotocin-induced diabetic rats. The one normal control group was fed an AIN-76-based experimental diet and four diabetic groups were fed the same diet, supplemented with four different levels of soybean isoflavone extract for seven weeks. The daily dosages of pure isoflavone for four diabetic groups were set to be 0 mg (diabetic control), 0.5 mg (ISO-I), 3.0 mg (ISO-II) and 30.0 mg (ISO-III) per kilogram of body weight, respectively. The plasma total cholesterol levels and the TBA-reactive substances contents in the liver and kidney were significantly lowered in ISO-II and ISO-III groups compared to those in the diabetic control group. The levels of plasma HDL-cholesterol, plasma vitamin A and hepatic superoxide dismutase were significantly increased in those two groups compared with the diabetic control group. The present study demonstrated the possibility that the diets supplemented with 3.0 mg and 30.0 mg of soybean isoflavone extract may have beneficial effects on the plasma lipids, tissue lipid peroxidation and partly on antioxidant system in diabetic animals and there were no significant differences between the ISO-II and ISO-III groups. The results suggest that the effective daily dosage level of isoflavone for improving lipid metabolism in diabetic rats may be above 3.0 mg per kilogram body weight.
Animals
;
Body Weight
;
Cholesterol
;
Diet
;
Kidney
;
Lipid Metabolism
;
Lipid Peroxidation
;
Liver
;
Plasma
;
Rats
;
Soybeans
;
Superoxide Dismutase
;
Vitamin A
3.Characterization of Nitric Oxide (NO)-Induced Cell Death in Lung Epithelial Cells.
Wha Shim YONG ; Youn Seup KIM ; Jae Seuk PARK ; Young Koo JEE ; Kye Young LEE
Tuberculosis and Respiratory Diseases 2004;56(2):187-197
BACKGROUND: Nitric Oxide (NO) is a multi-faceted molecule with dichotomous regulatory roles in many areas of biology. NO can promote apoptosis in some cells, whereas it inhibits apoptosis in other cell types. This study was performed to characterize NO-induced cell death in lung epithelial cells and to investigate the roles of cell death regulators including iron, bcl-2 and p53. METHODS: A549 cells were used for lung epithelial cells. SNP (sodium nitroprusside) and SNAP (S-nitroso-N-acetyl-penicillamine) were used for NO donor. Cytoxicity assay was done by MTT assay and crystal violet assay. Apoptotic assay was done by fluorescent microscopy after double staining with propidium iodide and hoecst 33342. Iron inhibition study was done with RBCs and FeSO4. For bcl-2 study, bcl-2 overexpressing cells (A549-bcl-2) were used and for p53 study, Western blot analysis and p53 functionally knock-out cells (A549-E6) were used. RESULTS: SNP and SNAP induced dose-dependent cell death in A549 cells and fluorescent microscopy revealed that SNAP induced apoptosis in low doses but necrosis in high doses while SNP induced exclusively necrotic cell death. Iron inhibition study using RBCs and FeSO4 significantly blocked SNAP-induced cell death. And also SNAP-induced cell death was blocked by bcl-2 overexpression. Finally, we found that SNAP activate p53 by Western blot analysis and that SNAP-induced cell death was decreased in the abscence of p53. CONCLUSION: In lung epithelial cells, NO can induce cell death, more precisely apoptosis in low doses and necrosis in high doses. And iron, bcl-2, and p53 play important roles in NO-induced cell death.
Apoptosis
;
Biology
;
Blotting, Western
;
Cell Death*
;
Epithelial Cells*
;
Gentian Violet
;
Humans
;
Iron
;
Lung*
;
Microscopy
;
Necrosis
;
Nitric Oxide*
;
Propidium
;
Tissue Donors
4.Relationship between metabolic syndrome components and periodontal health determined using a self-reported questionnaire.
Min Jeong CHO ; Jee Seon SHIM ; Hyeon Chang KIM ; Keun Bae SONG ; Youn Hee CHOI
Journal of Korean Academy of Oral Health 2016;40(4):231-237
OBJECTIVES: Many recent studies have suggested that several systemic conditions, such as obesity, hypertension, hyperlipidemia, and diabetes, are related to periodontitis. The aim of this study was to investigate whether any particular metabolic syndrome component correlates with the periodontal status. METHODS: This study analyzed data from 501 adults (age range, 30 to 64 years) who completed a general physical examination and an oral-health-related questionnaire between January 2014 and June 2014. Periodontitis was already used by the validity and reliability has been proven questionnaire. Multiple logistic regression analysis was used to assess the association between metabolic syndrome and the presence of chronic periodontitis. RESULTS: Among the 501 participants, 81 (16.2%) had metabolic syndrome and 91 (18.2%) had chronic periodontitis. The prevalence of chronic periodontitis was 28.40% (23/81) and 16.19% (68/420) in the participants with and without metabolic syndrome, respectively. The association remained significant after adjusting for sex, age, education, income, occupation, and smoking status; the adjusted odds ratio was 2.03 (95% confidence interval, 1.11 to 3.71). CONCLUSIONS: A significant association exists between metabolic syndrome components and the periodontal status.
Adult
;
Chronic Periodontitis
;
Education
;
Humans
;
Hyperlipidemias
;
Hypertension
;
Logistic Models
;
Obesity
;
Occupations
;
Odds Ratio
;
Periodontitis
;
Physical Examination
;
Prevalence
;
Reproducibility of Results
;
Smoke
;
Smoking
6.Updates on Therapeutic Alternatives for Genitourinary Syndrome of Menopause: Hormonal and Non-Hormonal Managements
Suhyun SHIM ; Kyung-Min PARK ; Youn-Jee CHUNG ; Mee-Ran KIM
Journal of Menopausal Medicine 2021;27(1):1-7
Postmenopausal atrophic vaginitis, along with vasomotor symptoms and sleep disorders, is one of the most troublesome symptoms of menopause. However, many women do not manage this symptom properly due to insufficient knowledge of the symptoms or sexual embarrassment. With appropriate treatment, many postmenopausal women can experience relief from discomforts, including burning sensation or dryness of the vagina and dyspareunia. Topical lubricants and moisturizers, systemic and local estrogens, testosterones, intravaginal dehydroepiandrosterones (DHEAs), selective estrogen receptor modulators, and energy-based therapies are possible treatment modalities. Systemic and local estrogen therapies effectively treat genitourinary syndrome of menopause (GSM), but they are contraindicated in patients with breast cancer, for whom lubricants and moisturizers must be considered as the primary treatment. Intravaginal DHEA and ospemifene can be recommended for moderate to severe GSM; however, there is insufficient data on the use of intravaginal DHEA or ospemifene in patients with breast cancer, and further studies are needed. Energy-based devices such as vaginal laser therapy reportedly alleviate GSM symptoms; however, the U.S. Food and Drug Administration warning has recently been issued because of complications such as chronic pain and burning sensations of the vagina. To summarize, clinicians should provide appropriate individualized treatment options depending on women’s past history, symptom severity, and chief complaints.
7.Updates on Therapeutic Alternatives for Genitourinary Syndrome of Menopause: Hormonal and Non-Hormonal Managements
Suhyun SHIM ; Kyung-Min PARK ; Youn-Jee CHUNG ; Mee-Ran KIM
Journal of Menopausal Medicine 2021;27(1):1-7
Postmenopausal atrophic vaginitis, along with vasomotor symptoms and sleep disorders, is one of the most troublesome symptoms of menopause. However, many women do not manage this symptom properly due to insufficient knowledge of the symptoms or sexual embarrassment. With appropriate treatment, many postmenopausal women can experience relief from discomforts, including burning sensation or dryness of the vagina and dyspareunia. Topical lubricants and moisturizers, systemic and local estrogens, testosterones, intravaginal dehydroepiandrosterones (DHEAs), selective estrogen receptor modulators, and energy-based therapies are possible treatment modalities. Systemic and local estrogen therapies effectively treat genitourinary syndrome of menopause (GSM), but they are contraindicated in patients with breast cancer, for whom lubricants and moisturizers must be considered as the primary treatment. Intravaginal DHEA and ospemifene can be recommended for moderate to severe GSM; however, there is insufficient data on the use of intravaginal DHEA or ospemifene in patients with breast cancer, and further studies are needed. Energy-based devices such as vaginal laser therapy reportedly alleviate GSM symptoms; however, the U.S. Food and Drug Administration warning has recently been issued because of complications such as chronic pain and burning sensations of the vagina. To summarize, clinicians should provide appropriate individualized treatment options depending on women’s past history, symptom severity, and chief complaints.
8.A case of hereditary pancreatitis with a N29I mutation in the cationic trypsinogen gene.
Jee Youn SHIN ; Dae Sung OH ; Jeong Min RHEU ; Jeong Ok SHIM ; Ji Sook PARK ; Jae Sung KO ; Jeong Kee SEO
Korean Journal of Pediatrics 2006;49(10):1111-1115
Hereditary pancreatitis is an autosomal dominant disease characterized by recurrent episodes of pancreatitis, often beginning in childhood, with a positive family history involving at least two other affected family members with no known other precipitating factors. Most forms of hereditary pancreatitis are caused by one of two common mutations, i.e., R122H in exon 3 and N29I in exon 2 of the cationic trypsinogen (CT) (PRSS1) gene, located on chromosome 7. The authors describe the case of a 15-year-old boy who had suffered from recurrent attacks of pancreatitis since age three. His mother and grandmother had chronic pancreatitis and diabetes mellitus. Mutation analysis was performed on the family due to the suspicion of hereditary pancreatitis. The CT gene was analyzed in DNA samples extracted from the peripheral blood of three family members, the mother, the proband, and the proband's sister. Two members of the family, the mother and the proband, were found to have a N29I mutation in the CT gene. The authors document the first family with hereditary pancreatitis associated with the N29I mutation in Korea.
Adolescent
;
Chromosomes, Human, Pair 7
;
Diabetes Mellitus
;
DNA
;
Exons
;
Humans
;
Korea
;
Male
;
Mothers
;
Pancreatitis*
;
Pancreatitis, Chronic
;
Precipitating Factors
;
Siblings
;
Trypsinogen*
9.Awareness, Treatment, Control, and Related Factors of Hypertension in Gwacheon.
Youn Hee CHOI ; Chung Mo NAM ; Mi Hyun JOO ; Ki Tae MOON ; Jee Seon SHIM ; Hyeon Chang KIM ; Il SUH
Korean Journal of Preventive Medicine 2003;36(3):263-270
OBJECTIVES: To identify the factors related to awareness, treatment, and control of hypertension in a Gwacheon population. METHODS: This study surveyed 1, 176 Gwacheon residents older than 40 years, and measured blood pressure using a standardized guideline in 1999. The study subjects were 473 adults (175 males, 298 females) with hypertension defined as a systolic blood pressure > or= 140 mmHg, diastolic blood pressure > or= 90 mmHg or reported treatment with antihypertensive medications. Information on awareness, treatment, and control of hypertension, and sociodemographic and health-related factors was collected through person-to-person interviews with a structured questionnaire. RESULTS: Overall, 252 (53.3%) of hypertensive subjects were aware of their condition, of whom as many as 193 (76.6%) were being treated, and 81 (42.0%) had their blood pressure controlled at the recommended level (< 140/90 mmHg). However, of the 473 subjects found to have hypertension, only 40.8% were being treated, and 17.1% were under control. There were no significant differences in the proportions of awareness, treatment, and control of hypertension. In multiple logistic regression models, awareness of hypertension was positively associated with age and family history of hypertension in females. Control of hypertension was also positively associated with having a partner and marital status in females. CONCLUSION: These findings demonstrate that much greater efforts on improving awareness, treatment, and control of hypertension are needed, even in urban community settings, considering related factors such as age, family history, and marital status. However, these factors should be further investigated for their causal relationship.
Adult
;
Blood Pressure
;
Female
;
Gyeonggi-do*
;
Humans
;
Hypertension*
;
Logistic Models
;
Male
;
Marital Status
;
Population Characteristics
10.An IgE-Mediated Allergic Reaction Caused by Mulberry Fruit.
Jong Hyun CHOI ; Jae Kyoem SIM ; Jee Youn OH ; Gyu Young HUR ; Kyung Hoon MIN ; Sung Yong LEE ; Jae Jeong SHIM ; Kyung Ho KANG
Allergy, Asthma & Immunology Research 2015;7(2):195-198
Mulberry (Morus spp.) is a widespread deciduous tree and its fruit is commonly eaten in Korea and eastern Asia. Some reports demonstrate that mulberry fruit is a food allergen in the Mediterranean area. However, there has been no report of systemic allergic reactions after ingesting mulberry fruit in Korea. An 18-year-old boy with a mulberry fruit allergy visited our allergy clinic. He had experienced generalized urticaria, chest tightness, breathing difficulty, and abdominal cramping after ingesting mulberry fruit. The patient had a positive skin reaction to mulberry fruit extract (mean wheal size, 5 mm). We performed an ELISA to detect specific IgE antibody (Ab) to mulberry fruit extract in the patient's serum compared to those of non-atopic healthy controls and birch-sensitized individuals. Specific IgE Ab to mulberry fruit extract was detected in the patient's serum, as compared to non-atopic healthy controls. Another subject, who was strongly sensitized to birch pollen, also had a positive serum-specific IgE Ab to mulberry fruit. We performed IgE immunoblot analysis using the patient's and the other subject's sera, who had serum-specific IgE to mulberry fruit, to identify the IgE-binding component. An identical IgE-binding component to mulberry extract was detected in the two subjects at around 17 kDa, and which might be PR 10 of Bet v 1. In conclusion, mulberry fruit could induce a systemic allergic reaction through an IgE-mediated mechanism, and cross-reactivity might occur between mulberry fruit and birch pollen.
Adolescent
;
Betula
;
Colic
;
Enzyme-Linked Immunosorbent Assay
;
Far East
;
Food Hypersensitivity
;
Fruit*
;
Humans
;
Hypersensitivity*
;
Immunoglobulin E
;
Korea
;
Male
;
Morus*
;
Pollen
;
Respiration
;
Skin
;
Thorax
;
Trees
;
Urticaria