1.Lower limb compartment syndrome by reperfusion injury after treatment of arterial thrombosis post-laparoscopic radical hysterectomy and pelvic lymph node dissection for cervical cancer.
Jihee YEON ; Ye Won JUNG ; Shin Seok YANG ; Byung Hun KANG ; Mina LEE ; Young Bok KO ; Jung Bo YANG ; Ki Hwan LEE ; Heon Jong YOO
Obstetrics & Gynecology Science 2017;60(2):223-226
Compartment syndrome is a clinical condition associated with decreased blood circulation that can lead to swelling of tissue in limited space. Several factors including lithotomy position, prolonged surgery, intermittent pneumatic compressor, and reperfusion after treatment of arterial thrombosis may contribute to compartment syndrome. However, compartment syndrome rarely occurs after gynecologic surgery. In this case, the patient was diagnosed as compartment syndrome due to reperfusion injury after treatment of arterial thrombosis, which occurred after laparoscopic radical hysterectomy and pelvic lymph node dissection for cervical cancer. Despite its rarity, prevention and identifying the risk factors of complication should be performed perioperatively; furthermore, gynecologist should be aware of the possibility of complications.
Blood Circulation
;
Compartment Syndromes*
;
Female
;
Gynecologic Surgical Procedures
;
Humans
;
Hysterectomy*
;
Lower Extremity*
;
Lymph Node Excision*
;
Lymph Nodes*
;
Reperfusion Injury*
;
Reperfusion*
;
Risk Factors
;
Thrombosis*
;
Uterine Cervical Neoplasms*
2.Novel Pathogenic Variant (c.580C>T) in the CPS1 Gene in a Newborn With Carbamoyl Phosphate Synthetase 1 Deficiency Identified by Whole Exome Sequencing.
Rihwa CHOI ; Hyung Doo PARK ; Mina YANG ; Chang Seok KI ; Soo Youn LEE ; Jong Won KIM ; Junghan SONG ; Yun Sil CHANG ; Won Soon PARK
Annals of Laboratory Medicine 2017;37(1):58-62
Diagnosis of the urea cycle disorder (USD) carbamoyl-phosphate synthetase 1 (CPS1) deficiency (CPS1D) based on only the measurements of biochemical intermediary metabolites is not sufficient to properly exclude other UCDs with similar symptoms. We report the first Korean CPS1D patient using whole exome sequencing (WES). A four-day-old female neonate presented with respiratory failure due to severe metabolic encephalopathy with hyperammonemia (1,690 µmol/L; reference range, 11.2-48.2 µmol/L). Plasma amino acid analysis revealed markedly elevated levels of alanine (2,923 µmol/L; reference range, 131-710 µmol/L) and glutamine (5,777 µmol/L; reference range, 376-709 µmol/L), whereas that of citrulline was decreased (2 µmol/L; reference range, 10-45 µmol/L). WES revealed compound heterozygous pathogenic variants in the CPS1 gene: one novel nonsense pathogenic variant of c.580C>T (p.Gln194*) and one known pathogenic frameshift pathogenic variant of c.1547delG (p.Gly516Alafs*5), which was previously reported in Japanese patients with CPS1D. We successfully applied WES to molecularly diagnose the first Korean patient with CPS1D in a clinical setting. This result supports the clinical applicability of WES for cost-effective molecular diagnosis of UCDs.
Base Sequence
;
Carbamoyl-Phosphate Synthase (Ammonia)/chemistry/*genetics
;
Carbamoyl-Phosphate Synthase I Deficiency Disease/diagnosis/*genetics
;
Codon, Nonsense
;
Exons
;
Female
;
Frameshift Mutation
;
High-Throughput Nucleotide Sequencing
;
Humans
;
Infant, Newborn
;
Republic of Korea
;
Sequence Analysis, DNA
;
Urea Cycle Disorders, Inborn/diagnosis
3.Laboratory Identification of Leptotrichia Species Isolated From Bacteremia Patients at a Single Institution.
Eun Hye CHO ; Kyung Sun PARK ; Mina YANG ; Dong Joon SONG ; Hee Jae HUH ; Chang Seok KI ; Nam Yong LEE
Annals of Laboratory Medicine 2017;37(3):272-276
We describe the laboratory identification of Leptotrichia species from clinical isolates collected over a six-year period. Five isolates from blood cultures were identified as Leptotrichia species. Gram stain showed large, fusiform, gram-negative or -variable bacilli. Identification based on biochemical testing was unsuccessful; however, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry proved to be a useful tool for identifying Leptotrichia species to the genus level. Species level identification was successfully achieved by using 16S ribosomal RNA gene sequencing.
Bacteremia*
;
Humans
;
Leptotrichia*
;
Mass Spectrometry
;
RNA, Ribosomal, 16S
4.Identification of Mucorales From Clinical Specimens: A 4-Year Experience in a Single Institution.
Mina YANG ; Jang Ho LEE ; Young Kwon KIM ; Chang Seok KI ; Hee Jae HUH ; Nam Yong LEE
Annals of Laboratory Medicine 2016;36(1):60-63
Mucormycosis, a fatal opportunistic infection in immunocompromised hosts, is caused by fungi belonging to the order Mucorales. Early diagnosis based on exact identification and multidisciplinary treatments is critical. However, identification of Mucorales fungi is difficult and often delayed, resulting in poor prognosis. This study aimed to compare the results of phenotypic and molecular identification of 12 Mucorales isolates collected from 4-yr-accumulated data. All isolates were identified on the basis of phenotypic characteristics such as growth rate, colony morphology, and reproductive structures. PCR and direct sequencing were performed to target internal transcribed spacer (ITS) and/or D1/D2 regions. Target DNA sequencing identified five Lichtheimia isolates, two Rhizopus microsporus isolates, two Rhizomucor pusillus isolates, one Cunninghamella bertholletiae isolate, one Mucor fragilis isolate, and one Syncephalastrum racemosum isolate. Five of the 12 (41.7%) isolates were incorrectly identified on the basis of phenotypic identification. DNA sequencing showed that of these five isolates, two were Lichtheimia isolates, one was Mucor isolate, one was Rhizomucor isolate, and one was Rhizopus microspores. All the isolates were identified at the species level by ITS and/or D1/D2 analyses. Phenotypic differentiation and identification of Mucorales is difficult because different Mucorales share similar morphology. Our results indicate that the molecular methods employed in this study are valuable for identifying Mucorales.
Genotype
;
Humans
;
Mucorales/classification/genetics/*isolation & purification
;
Mucormycosis/*microbiology
;
Mycological Typing Techniques
;
Phenotype
5.Lifespan Extending and Stress Resistant Properties of Vitexin from Vigna angularis in Caenorhabditis elegans.
Eun Byeol LEE ; Jun Hyeong KIM ; Youn Soo CHA ; Mina KIM ; Seuk Bo SONG ; Dong Seok CHA ; Hoon JEON ; Jae Soon EUN ; Sooncheon HAN ; Dae Keun KIM
Biomolecules & Therapeutics 2015;23(6):582-589
Several theories emphasize that aging is closely related to oxidative stress and disease. The formation of excess ROS can lead to DNA damage and the acceleration of aging. Vigna angularis is one of the important medicinal plants in Korea. We isolated vitexin from V. angularis and elucidated the lifespan-extending effect of vitexin using the Caenorhabditis elegans model system. Vitexin showed potent lifespan extensive activity and it elevated the survival rates of nematodes against the stressful environments including heat and oxidative conditions. In addition, our results showed that vitexin was able to elevate antioxidant enzyme activities of worms and reduce intracellular ROS accumulation in a dose-dependent manner. These studies demonstrated that the increased stress tolerance of vitexin-mediated nematode could be attributed to increased expressions of stress resistance proteins such as superoxide dismutase (SOD-3) and heat shock protein (HSP-16.2). In this work, we also studied whether vitexin-mediated longevity activity was associated with aging-related factors such as progeny, food intake, growth and movement. The data revealed that these factors were not affected by vitexin treatment except movement. Vitexin treatment improved the body movement of aged nematode, suggesting vitexin affects healthspan as well as lifespan of nematode. These results suggest that vitexin might be a probable candidate which could extend the human lifespan.
Acceleration
;
Aging
;
Caenorhabditis elegans*
;
Caenorhabditis*
;
DNA Damage
;
Eating
;
Heat-Shock Proteins
;
Hot Temperature
;
Humans
;
Korea
;
Longevity
;
Oxidative Stress
;
Plants, Medicinal
;
Superoxide Dismutase
;
Survival Rate
6.Korean research project on the integrated exposure assessment of hazardous substances for food safety.
Ji Ae LIM ; Ho Jang KWON ; Mina HA ; Ho KIM ; Se Young OH ; Jeong Seon KIM ; Sang Ah LEE ; Jung Duck PARK ; Young Seoub HONG ; Seok Joon SOHN ; Heesoo PYO ; Kyung Su PARK ; Kwang Geun LEE ; Yong Dae KIM ; Sangil JUN ; Myung Sil HWANG
Environmental Health and Toxicology 2015;30(1):e2015004-
OBJECTIVES: This survey was designed to conduct the first nationwide dietary exposure assessment on hazardous substances including the intakes of functional food and herbal medicine. In this paper, we introduced the survey design and the results of the dietary exposure status and internal exposure levels of lead (Pb), cadmium (Cd), and mercury (Hg). METHODS: We selected 4867 subjects of all ages throughout Korea. We conducted a food survey, dietary survey, biomonitoring, and health survey. RESULTS: Pb and Cd were the highest (median value) in the seaweed (94.2 mug/kg for Pb; 594 mug/kg for Cd), and Hg was the highest in the fish (46.4 mug/kg). The dietary exposure level (median value) of Pb was 0.14 mug/kg body weight (bw)/d, 0.18 mug/kg bw/d for Cd, and 0.07 mug/kg bw/d for Hg. Those with a blood Pb level of less than 5.00 mug/dL (US Centers for Disease Control and Prevention, reference value for those 1 to 5 years of age) were 99.0% of all the subjects. Those with a blood Cd level with less than 0.30 mug/L (German Federal Environmental Agency, reference value for non-smoking children) were 24.5%. For those with a blood Hg level with less than 5.00 mug/L (human biomonitoring I, references value for children and adults, German Federal Environmental Agency) was 81.0 % of all the subjects. CONCLUSIONS: The main dietary exposure of heavy metals occurs through food consumed in a large quantity and high frequency. The blood Hg level and dietary exposure level of Hg were both higher than those in the European Union.
Adult
;
Body Weight
;
Cadmium
;
Centers for Disease Control and Prevention (U.S.)
;
Child
;
Eating
;
Environmental Monitoring
;
European Union
;
Food Safety*
;
Functional Food
;
Hazardous Substances*
;
Health Surveys
;
Herbal Medicine
;
Humans
;
Korea
;
Metals, Heavy
;
Reference Values
;
Seaweed
7.Korean research project on the integrated exposure assessment of hazardous substances for food safety.
Ji Ae LIM ; Ho Jang KWON ; Mina HA ; Ho KIM ; Se Young OH ; Jeong Seon KIM ; Sang Ah LEE ; Jung Duck PARK ; Young Seoub HONG ; Seok Joon SOHN ; Heesoo PYO ; Kyung Su PARK ; Kwang Geun LEE ; Yong Dae KIM ; Sangil JUN ; Myung Sil HWANG
Environmental Health and Toxicology 2015;30(1):e2015004-
OBJECTIVES: This survey was designed to conduct the first nationwide dietary exposure assessment on hazardous substances including the intakes of functional food and herbal medicine. In this paper, we introduced the survey design and the results of the dietary exposure status and internal exposure levels of lead (Pb), cadmium (Cd), and mercury (Hg). METHODS: We selected 4867 subjects of all ages throughout Korea. We conducted a food survey, dietary survey, biomonitoring, and health survey. RESULTS: Pb and Cd were the highest (median value) in the seaweed (94.2 mug/kg for Pb; 594 mug/kg for Cd), and Hg was the highest in the fish (46.4 mug/kg). The dietary exposure level (median value) of Pb was 0.14 mug/kg body weight (bw)/d, 0.18 mug/kg bw/d for Cd, and 0.07 mug/kg bw/d for Hg. Those with a blood Pb level of less than 5.00 mug/dL (US Centers for Disease Control and Prevention, reference value for those 1 to 5 years of age) were 99.0% of all the subjects. Those with a blood Cd level with less than 0.30 mug/L (German Federal Environmental Agency, reference value for non-smoking children) were 24.5%. For those with a blood Hg level with less than 5.00 mug/L (human biomonitoring I, references value for children and adults, German Federal Environmental Agency) was 81.0 % of all the subjects. CONCLUSIONS: The main dietary exposure of heavy metals occurs through food consumed in a large quantity and high frequency. The blood Hg level and dietary exposure level of Hg were both higher than those in the European Union.
Adult
;
Body Weight
;
Cadmium
;
Centers for Disease Control and Prevention (U.S.)
;
Child
;
Eating
;
Environmental Monitoring
;
European Union
;
Food Safety*
;
Functional Food
;
Hazardous Substances*
;
Health Surveys
;
Herbal Medicine
;
Humans
;
Korea
;
Metals, Heavy
;
Reference Values
;
Seaweed
8.Surgery for Partial Anomalous Pulmonary Venous Connections: Modification of the Warden Procedure with a Right Atrial Appendage Flap.
Chilsung KIM ; Yang Hyun CHO ; Mina LEE ; Ji Hyuk YANG ; Tae Gook JUN ; Jin Young SONG ; June HUH ; I Seok KANG
The Korean Journal of Thoracic and Cardiovascular Surgery 2014;47(2):94-99
BACKGROUND: Surgical repair of a partial anomalous pulmonary venous connection (PAPVC) to the superior vena cava (SVC) may be complicated by sinus node dysfunction or SVC obstruction. We modified the Warden procedure by using a right atrial auricular flap to decrease the occurrence of these complications. METHODS: Between February 2005 and July 2012, 10 consecutive patients underwent a modified Warden procedure to correct PAPVC. The median patient age was 5.7 years. Eight patients (80%) had an atrial septal defect. To surgically correct the PAPVC, we made a U-shaped incision on the right atrial appendage and sutured the flap to the posterior wall of the SVC. The anterior wall was reconstructed with various patch materials. RESULTS: No early or late deaths occurred, nor did any patient require early or late reoperation for SVC or pulmonary venous obstruction. No new arrhythmias appeared during follow-up, which was complete in all patients (mean, 29.5 months). CONCLUSION: Our modification of the Warden procedure seems to be effective and safe. This technique may lower the risk of SVC obstruction, pulmonary venous obstruction, and sinus dysfunction.
Arrhythmias, Cardiac
;
Atrial Appendage*
;
Follow-Up Studies
;
Heart Septal Defects, Atrial
;
Humans
;
Reoperation
;
Sick Sinus Syndrome
;
Vena Cava, Superior
9.Dosimetric evaluation of Tomotherapy and four-box field conformal radiotherapy in locally advanced rectal cancer.
Mina YU ; Hong Seok JANG ; Dong Min JEON ; Geum Seong CHEON ; Hyo Chun LEE ; Mi Joo CHUNG ; Sung Hwan KIM ; Jong Hoon LEE
Radiation Oncology Journal 2013;31(4):252-259
PURPOSE: To report the results of dosimetric comparison between intensity-modulated radiotherapy (IMRT) using Tomotherapy and four-box field conformal radiotherapy (CRT) for pelvic irradiation of locally advanced rectal cancer. MATERIALS AND METHODS: Twelve patients with locally advanced rectal cancer who received a short course preoperative chemoradiotherapy (25 Gy in 5 fractions) on the pelvis using Tomotherapy, between July 2010 and December 2010, were selected. Using their simulation computed tomography scans, Tomotherapy and four-box field CRT plans with the same dose schedule were evaluated, and dosimetric parameters of the two plans were compared. For the comparison of target coverage, we analyzed the mean dose, V(n Gy), D(min), D(max), radical dose homogeneity index (rDHI), and radiation conformity index (RCI). For the comparison of organs at risk (OAR), we analyzed the mean dose. RESULTS: Tomotherapy showed a significantly higher mean target dose than four-box field CRT (p = 0.001). But, V(26.25 Gy) and V(27.5 Gy) were not significantly different between the two modalities. Tomotherapy showed higher D(max) and lower D(min). The Tomotherapy plan had a lower rDHI than four-box field CRT (p = 0.000). Tomotherapy showed better RCI than four-box field CRT (p = 0.007). For OAR, the mean irradiated dose was significantly lower in Tomotherapy than four-box field CRT. CONCLUSION: In locally advanced rectal cancer, Tomotherapy delivers a higher conformal radiation dose to the target and reduces the irradiated dose to OAR than four-box field CRT.
Appointments and Schedules
;
Chemoradiotherapy
;
Humans
;
Organs at Risk
;
Pelvis
;
Preoperative Care
;
Radiometry
;
Radiotherapy, Conformal*
;
Radiotherapy, Intensity-Modulated
;
Rectal Neoplasms*
10.Mitochondrial dysfunction and activation of iNOS are responsible for the palmitate-induced decrease in adiponectin synthesis in 3T3L1 adipocytes.
Min Jae JEON ; Jaechan LEEM ; Myoung Seok KO ; Jung Eun JANG ; Hye Sun PARK ; Hyun Sik KIM ; Mina KIM ; Eun Hee KIM ; Hyun Ju YOO ; Chul Ho LEE ; In Sun PARK ; Ki Up LEE ; Eun Hee KOH
Experimental & Molecular Medicine 2012;44(9):562-570
Mitochondrial dysfunction and endoplasmic reticulum (ER) stress are considered the key determinants of insulin resistance. Impaired mitochondrial function in obese animals was shown to induce the ER stress response, resulting in reduced adiponectin synthesis in adipocytes. The expression of inducible nitric oxide synthase (iNOS) is increased in adipose tissues in genetic and dietary models of obesity. In this study, we examined whether activation of iNOS is responsible for palmitate-induced mitochondrial dysfunction, ER stress, and decreased adiponectin synthesis in 3T3L1 adipocytes. As expected, palmitate increased the expression levels of iNOS and ER stress response markers, and decreased mitochondrial contents. Treatment with iNOS inhibitor increased adiponectin synthesis and reversed the palmitate-induced ER stress response. However, the iNOS inhibitor did not affect the palmitate-induced decrease in mitochondrial contents. Chemicals that inhibit mitochondrial function increased iNOS expression and the ER stress response, whereas measures that increase mitochondrial biogenesis (rosiglitazone and adenoviral overexpression of nuclear respiratory factor-1) reversed them. Inhibition of mitochondrial biogenesis prevented the rosiglitazone-induced decrease in iNOS expression and increase in adiponectin synthesis. These results suggest that palmitate-induced mitochondrial dysfunction is the primary event that leads to iNOS induction, ER stress, and decreased adiponectin synthesis in cultured adipocytes.
3T3-L1 Cells
;
*Adipocytes/drug effects/metabolism
;
Adiponectin/biosynthesis
;
Adipose Tissue/metabolism
;
Animals
;
Endoplasmic Reticulum Stress/drug effects
;
Insulin Resistance/genetics
;
Mice
;
Mitochondria/drug effects/*metabolism/pathology
;
Mitochondrial Turnover/drug effects/genetics
;
*Nitric Oxide Synthase Type II/genetics/metabolism
;
Nuclear Respiratory Factor 1
;
Obesity/genetics/metabolism
;
Palmitic Acid/pharmacology
;
Thiazolidinediones/pharmacology

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