1.Effect of Cyanidin on Cell Motility and Invasion in MDA-MB-231 Human Breast Cancer Cells.
Su Kyoung CHU ; Eun Young SEO ; Woo Kyoung KIM ; Nam E KANG
The Korean Journal of Nutrition 2008;41(8):711-717
Anthocyanidins, the aglycones of anthocyanins, are natural colorants belonging to the flavonoid family. Cyanidin is one of the anthocyanidins, used for their antioxidant properties. Furthermore, previous studies have shown anthocyanidin-rich material extracts or aglycone form inhibit growth and induce apoptosis of cancer cells. But, Tumor metastasis is the most important cause of cancer death, and various treatment strategies have targeted on preventing the occurrence of metastasis. This study investigated the effects of cyanidin on metastasis processes, including motility, invasion and activity of MMP-2 and MMP-9 in MDA-MB-231 human breast cancer cell lines. We cultured MDA-MB-231 cells in presence of various concentrations 0, 5, 10 and 20 micrometer of cyanidin. The cell motility was significantly decreased dosedependently in cells treated with cyanidin (p < 0.05) and cyanidin treatment caused the significant suppression of the invasion (p < 0.05). MMP-2 and MMP-9 activities, and MMP-9 mRNA express were not affected by anthocyanin treatment. In conclusion, cyanidin inhibits cell motility, invasion in MDA-MB-231 human breast cancer cell lines.
Anthocyanins
;
Apoptosis
;
Breast
;
Breast Neoplasms
;
Cell Line
;
Cell Movement
;
Humans
;
Neoplasm Metastasis
;
RNA, Messenger
2.Hyponatremia in Childhood Patients with Oxcarbazepine and Carbamazepine.
Journal of the Korean Child Neurology Society 2008;16(2):139-145
PURPOSE: Long term oral medications of anticonvulsants are inevitable in pediatric epilepsy patients. Therefore special attention is needed for the complications caused by these medications. Hyponatremia is a well known complication of carbamazepine(CBZ) and oxcarbazepine(OXC), but researches in pediatric patients are rare. This is a study about the development of hyponatremia during the use of these two anticonvulsants in pediatric epilepsy patients and other factors also involved in it. METHODS: We studied serum sodium levels of 267 pediatric patients who were treated with either CBZ or OXC in our hospital from January 2003 to December 2006. Hyponatremia was defined as Na+<138 mEq. Moderate hyponatremia was defined as Na+<130 mEq. Factors thought to be involved in the development of hyponatremia were studied also. These included age, sex, EEG and radiologic test results, use of any other medications, etc. RESULTS: Among the 267 pediatric patients treated with CBZ or OXC, there were 18 cases (6.7%) of moderate hyponatremia and 28 cases(10.5%) of mild hyponatremia. Sex, age, type of seizure, EEG and radiologic test results did not affect the development of hyponatremia. But combination therapy with other anticonvulsants resulted in an increase of hyponatremia. CONCLUSION: We recommend that serum sodium levels should be checked regularly of the pediatric patients taking CBZ or OXC, especially patients treated with additional drugs (combination therapy).
Anticonvulsants
;
Carbamazepine
;
Electroencephalography
;
Epilepsy
;
Humans
;
Hyponatremia
;
Seizures
;
Sodium
3.Decreasing effect of an anti-Nfa1 polyclonal antibody on the in vitro cytotoxicity of pathogenic Naegleria fowleri.
Seok Ryoul JEONG ; Su Yeon KANG ; Sang Chul LEE ; Kyoung Ju SONG ; Kyung il IM ; Ho Joon SHIN
The Korean Journal of Parasitology 2004;42(1):35-40
The nfa1 gene was cloned from a cDNA library of pathogenic Naegleria fowleri by immunoscreening; it consisted of 360 bp and produced a 13.1 kDa recombinant protein (rNfa1) that showed the pseudopodia-specific localization by immunocytochemistry in the previous study. Based on the idea that the pseudopodia-specific Nfa1 protein mentioned above seems to be involved in the pathogenicity of N. fowleri, we observed the effect of an anti-Nfa1 antibody on the proliferation of N. fowleri trophozoites and the cytotoxicity of N. fowleri trophozoites on the target cells. The proliferation of N. fowleri trophozoites was inhibited after being treated with an anti-Nfa1 polyclonal antibody in a dose-dependent manner for 48 hrs. By a light microscope, CHO cells co-cultured with N. fowleri trophozoites (group I) for 48 hrs showed severe morphological destruction. On the contrary, CHO cells co-cultured with N. fowleri trophozoites and anti-Nfa1 polyclonal antibody (1: 100 dilution) (group II) showed less destruction. In the LDH release assay results, group I showed 50.6% cytotoxicity, and group II showed 39.3%. Consequently, addition of an anti-Nfa1 polyclonal antibody produced a decreasing effect of in vitro cytotoxicity of N. fowleri in a dosedependent manner.
Animals
;
Antibodies, Protozoan/*immunology
;
Antigens, Protozoan/genetics/*immunology
;
CHO Cells
;
Dose-Response Relationship, Immunologic
;
Female
;
Hamsters
;
Mice
;
Mice, Inbred BALB C
;
Naegleria fowleri/growth & development/immunology/*pathogenicity
;
Protozoan Proteins/genetics/*immunology
;
Recombinant Proteins/immunology
;
Support, Non-U.S. Gov't
4.Efficacy of Frozen-Thawed ET in Patients with Old Age or Non-Pregnant in Fresh ET Cycles.
Su Jin CHOI ; Sun Hee LEE ; In Ok SONG ; Mi Kyoung KOONG ; Inn Soo KANG ; Jin Hyun JUN
Korean Journal of Fertility and Sterility 2006;33(4):237-243
OBJECTIVE: The aim of this study was to evaluate the efficacy of frozen-thawed ET in poor prognosis patients such as the old age (38~44 years; OA group) and the patients who did not achieve clinical pregnancy with the first fresh ET cycle (non-pregnant patients; NP group). METHODS: Laboratory and clinical data were collected from fresh and frozen-thawed ET cycles of OA and NP group. Controlled ovarian hyperstimulation (COH) and conventional insemination or ICSI, in vitro culture and ET were performed by routine procedures. Supernumerary embryos were frozen by the slow freezing method, and frozen embryos were thawed by the rapid thawing method. Embryo development, pregnancy and implantation rates were statistically analyzed by Student t-test and chi square test. RESULTS: Mean ages were similar between fresh ET (40.0+/-1.8 years, n=206) and frozen-thawed ET (39.9+/-1.9 years, n=69) cycles in OA group. However, the clinical pregnancy and implantation rate of subsequent frozen-thawed ET significantly higher than those of fresh ET cycles (29.0% and 11.2% vs. 16.5% and 7.0%, p<0.05). In NP group, there was no difference in the mean age between fresh ET (31.2+/-2.3 years, n=40) and frozen-thawed ET (31.9+/-3.1 years, n=119) in subsequent cycles. The clinical pregnancy and implantation rates were similar between the subsequent fresh ET (42.5% and 22.6%) and the frozen-thawed ET (40.3% and 18.8%). CONCLUSION: In old age patients, higher pregnancy rate of frozen-thawed ET compared to fresh ET cycles in this study. It may be related that better uterine environments for implantation in frozen-thawed ET cycles than that of non-physiological hormonal condition in uterus of fresh COH cycles.
Embryonic Development
;
Embryonic Structures
;
Female
;
Freezing
;
Humans
;
Insemination
;
Pregnancy
;
Pregnancy Rate
;
Prognosis
;
Sperm Injections, Intracytoplasmic
;
Uterus
5.Mediating Effect of Ego-Resiliency in the Relationship between Growth Mindset and Pregnancy Stress
Su Kyoung KANG ; Hae Mi KIM ; Mi Ra CHUNG
Journal of the Korean Society of Maternal and Child Health 2019;23(2):126-135
PURPOSE: This study investigates the effect of pregnant women's growth mindset on the stress of pregnancy through ego-resilience. METHODS: The subjects included 551 pregnant women in Seoul and Gyeonggi area. Data were collected using a structured questionnaire; statistical, frequency, correlation, and structural equation analyses were performed using SPSS21 and M-plus 7.0. RESULTS: First, pregnant women's growth mindset had a direct effect on pregnancy stress. Second, the mediating pathway that influenced pregnancy stress through the ego-resilience of growth mindset was significant. CONCLUSION: These results suggest that it is important to devise and practice a method to improve the growth mindset of pregnant women, enhance ego-resilience, and reduce the negative effects of stress by reducing pregnancy stress.
Female
;
Gyeonggi-do
;
Humans
;
Methods
;
Negotiating
;
Pregnancy
;
Pregnant Women
;
Seoul
6.The Relationship between Age and Speech Improvement in the Patients Performed Pharyngeal Flap for Correction of Velopharyngeal Dysfunction.
Kyoung Hoon KIM ; Yong Chan BAE ; Su Bong NAM ; Soo Jong CHOI ; Cheol Uk KANG
Journal of the Korean Society of Plastic and Reconstructive Surgeons 2009;36(3):294-298
PURPOSE: The pharyngeal flap is one of the popular surgical methods to treat the problem of velopharyngeal dysfunction. This study evaluated speech outcome of patients who underwent superiorly based pharyngeal flap surgery based on timing of surgery. METHODS: A restrospective review of 50 patients who underwent pharyngeal flap surgery for velopharyngeal insufficiency from September 1996 to January 2008 was undertaken. Thirty patients with an available preoprative and postoperative speech assessments with at least 6 months of follow-up were included in this study. We checked out the significance of speech improvement after surgery analysing preoperative and postoperative scoring of speech assessment. We also investigated the direct relationship between the age at surgery and the degree of speech improvement, and the improvement score in different age groups. RESULTS: The mean score of preoperative speech was 52.6 +/- 7.4 points and postoperative speech was 58.6 +/- 6.5 points, which presented significant postoperative speech improvement with an average of 5.9 points (p<0.01). There was a significant inverse relationship between the age at operation and speech improvement degree (p<0.01, r=-0.54). Comparing the age groups, the age group of 4 to 5 years presented statistically significant speech improvement (p<0.01). CONCLUSION: we propose that all patients indicated should take pharyngeal flap irrespective of age. In this study, the younger the age at surgery, the higher degree of speech improvement, for which we suggest that surgical approach should be undertaken as early as possible, especially younger than 5 years of age.
Follow-Up Studies
;
Humans
;
Velopharyngeal Insufficiency
7.Performance of Half-dose Chest Computed Tomography in Lung Malignancy Using an Iterative Reconstruction Technique.
Hee KANG ; Jung Gu PARK ; Se Kyoung PARK ; Beom Su KIM ; Ki Nam LEE ; Kyeung Seung OH
Kosin Medical Journal 2017;32(1):47-57
OBJECTIVES: The purpose of this study was to evaluate the performance of half-dose chest CT using an iterative reconstruction technique in patients with lung malignancies. METHODS: The Dual-source CT scans were obtained and half-dose datasets were reconstructed with 5 different strengths in 38 adults with lung malignancies. Two radiologists graded subjective image quality; noise, contrast and sharpness at the central/peripheral lung, mediastinum and chest wall of the reconstructed half-dose images, compared with those of standard-dose images, using a three-point scale. A lesion assessment; lesion conspicuity and diagnostic confidence, was also performed. The quantitative image noises; contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR) were measured and compared with those of standard-dose images. RESULTS: The subjective image noise in the half-dose images was less than that of the standard-dose images. The contrast in strengths 2 to 5 was superior, the sharpness of the lung parenchyma in strengths 3 to 5 was inferior, and the CNR/SNR in all strengths were higher than those of standard-dose images (P < 0.05). The improvement of subjective image noise and contrast, the decrease in sharpness, were correlated with strength level (P < 0.05). The lesion conspicuity in half-dose images of strengths 4 and 5 was decreased. The diagnostic confidence of the half-dose images of all strengths was comparable to that of the standard-dose images (P < 0.05). CONCLUSIONS: Half-dose chest CT images using an iterative reconstruction technique show decreased image noise, increased contrast, and diagnostic confidence comparable to standard-dose images. Images reconstructed with strength 2 and 3 appear to be the optimal choice in clinical practice.
Adult
;
Dataset
;
Humans
;
Lung*
;
Mediastinum
;
Noise
;
Signal-To-Noise Ratio
;
Thoracic Wall
;
Thorax*
;
Tomography, X-Ray Computed
8.A Case of Intracardiac Metastasis of Hepatocellular Carcinoma Presenting with Functional Tricuspid Valve Stenosis Accompanied with Hepatopulmonary Syndrome.
Chang Hun YOO ; Su Hong KIM ; Kyoung Chan KIM ; Jae Kyoon KIM ; Il Soo KIM ; Wook KANG
Journal of the Korean Geriatrics Society 2008;12(4):255-258
Intracardiac metastasis of hepatocellular carcinoma with functional tricuspid valve stenosis is not common. Furthermore, hepatopulmonary syndrome associated with hepatocellular carcinoma is rarely encountered. We present a case of intracardiac metastasis of hepatocellular carcinoma presenting with functional tricuspid valve stenosis accompanied with hepatopulmonary syndrome.
Carcinoma, Hepatocellular
;
Echocardiography
;
Heart Ventricles
;
Hepatopulmonary Syndrome
;
Neoplasm Metastasis
;
Tricuspid Valve
;
Tricuspid Valve Stenosis
9.The Effect of Metoclopramide and Ondansetron on Postoperative Nausea and Vomiting Following Propofol Injection as Induction Agent in Laparoscopic Surgery.
Su Yeon KIM ; Hyun Sook LEE ; Eun Chi BANG ; Yong In KANG ; Kyoung Sook CHO ; Myoung Hee KIM
Korean Journal of Anesthesiology 1998;35(1):144-150
BACKGROUND: Postoperative nausea and vomiting (PONV) are common problems in patients undergoing outpatient laparoscopy and hysteroscopy. Associated complications range in severity from mild discomfort to hospital admission for dehydration or pulmonary aspiration. This study was designed to assess the efficacy of 2 antiemetics (metoclopramide and ondansetron) with propofol as the induction agent for prophylaxis of postoperative emesis in women undergoing general anesthesia for gynecologic endoscopic surgery. METHODS: One hundred and twenty six healthy women undergoing laparoscopic and hysteroscopic surgery with general anesthesia were randomized to receive intravenous bolus of saline 2 ml, metoclopramide 10 mg, ondansetron 4 mg prior to induction of anesthesia. Anesthesia was induced with propofol 2~2.5 mg/kg, vecuronium 0.1 mg/kg and maintained with O2, N2O, enflurane, fentanyl 1~2 microgram/kg. The incidence of nausea and vomiting was assessed at recovery room and all patients were contacted 24 hours after discharge. RESULTS: The incidence of PONV showed 11.9% in control group, 11.9% in metoclopramide group and 9.5% in ondansetron group in recovery room. The incidence of PONV showed 14.3% in control group, 14.3% in metoclopramide group and 7.1% in ondansetron group in 24 hours postoperatively. There were no significant differences among the groups. CONCLUSIONS: When propofol was administered by intravenous induction agent, no antiemetic in this study was more efficacious than propofol alone in reducing PONV for women undergoing outpatient laparoscopic and hysteroscopic surgery.
Anesthesia
;
Anesthesia, General
;
Antiemetics
;
Dehydration
;
Enflurane
;
Female
;
Fentanyl
;
Humans
;
Hysteroscopy
;
Incidence
;
Laparoscopy*
;
Metoclopramide*
;
Nausea
;
Ondansetron*
;
Outpatients
;
Postoperative Nausea and Vomiting*
;
Propofol*
;
Recovery Room
;
Vecuronium Bromide
;
Vomiting
10.Cardiac Arrest during Epidural Anesthesia: A Case Report.
Eun Chi BANG ; Hyun Sook LEE ; Yong In KANG ; Kyoung Sook CHO ; Su Yeon KIM ; Sang Jin KIM
Korean Journal of Anesthesiology 2003;45(2):286-289
We report a case of sudden cardiac arrest requiring external thoracic cardiac massage in a 40-year old healthy man receiving epidural anesthesia for elective vasovasostomy. The anesthetic procedure was performed in an operating room. Bradycardia and hypotension occurred 10 minutes after local anesthetic injection. Atropine 0.5 mg and ephedrine 10 mg were administered intravenously, but cardiac arrest followed with unconsciousness and apnea. Atropine 0.5 mg and epinephrine 1 mg were administered intravenously, and external cardiac massage was performed synchronously. The heart rate promptly increased, and the consciousness and spontaneous respiration of the patient were restored. Vital signs became stable in the recovery room and the patient recovered with no sequelae. We conclude that sudden bradycardia and cardiac arrest can unexpectedly develop during epidural anesthesia, and that close monitoring of the patient and adequate management are essential.
Adult
;
Anesthesia, Epidural*
;
Apnea
;
Atropine
;
Bradycardia
;
Consciousness
;
Death, Sudden, Cardiac
;
Ephedrine
;
Epinephrine
;
Heart Arrest*
;
Heart Massage
;
Heart Rate
;
Humans
;
Hypotension
;
Operating Rooms
;
Recovery Room
;
Respiration
;
Unconsciousness
;
Vasovasostomy
;
Vital Signs