1.A case report of Angle's Class I malocclusion.
Jae Eui SHIN ; Sang Hun JANG ; Dong Seok NAHM ; Hee Won CHO
Korean Journal of Orthodontics 1972;3(1):35-40
No abstract available.
Malocclusion*
2.Retraction.
Seon Yong JEONG ; Seok Hun JANG ; Hyon J KIM
Journal of Genetic Medicine 2008;5(2):150-150
No abstract available.
3.Influence of Intrauterine Position on Fetal Weight in albino Rats Exposed to Carbon Monoxide.
Soo Hun CHO ; Jang Seok CHOI ; Dork Ro YUN
Korean Journal of Preventive Medicine 1986;19(1):123-129
Fetal weight data from 84 litters of Sprague-Dawley rats were statistically analyzed for the effect of position in the uterine horn on fetal weight. The standard score obtained from the mean weight and standard deviation of all fetuses in a uterine horn were studied for position effect. In control group, the heaviest fetus occupied the middle position with a progressive decrease in weights toward the ovarian and cervical ends of the horn. But the effect related to position for the fetal weight was not statistically significant. In contrast, rats acutely or chronically exposed to carbon monoxide showed statistically significant positional differences of fetal weight within the uterine horns. The findings that the intrauterine position effect on fetal weight which is not significant in control group may act one of confounders at the situation of transplacental toxicological studies.
Animals
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Carbon Monoxide*
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Carbon*
;
Fetal Weight*
;
Fetus
;
Horns
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Rats*
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Rats, Sprague-Dawley
;
Weights and Measures
4.Spinocerebellar ataxia 7 (SCA7).
Seon Yong JEONG ; Seok Hun JANG ; Hyon J KIM
Journal of Genetic Medicine 2007;4(1):22-37
The autosomal dominant spinocerebellar ataxias (SCAs) are a group of neurodegenerative diseases, clinically and genetically heterogeneous, characterized by degeneration of spinocerebellar pathways with variable involvement of other neural systems. At present, 27 distinct genetic forms of SCAs are known: SCA1-8, SCA10-21, SCA23, SCA25-28, DRPLA (dentatorubral-pallidoluysian atrophy), and 16q-liked ADCA (autosomal dominant cerebellar ataxia). Epidemiological data about the prevalence of SCAs are restricted to a few studies of isolated geographical regions, and most do not reflect the real occurrence of the disease. In general a prevalence of about 0.3-2 cases per 100,000 people is assumed. As SCA are highly heterogeneous, the prevalence of specific subtypes varies between different ethnic and continental populations. Most recent data suggest that SCA3 is the commonest subtype worldwide; SCA1, SCA2, SCA6, SCA7, and SCA8 have a prevalence of over 2%, and the remaining SCAs are thought to be rare (prevalence <1%). In this review, we highlight and discuss the SCA7. The hallmark of SCA7 is the association of hereditary ataxia and visual loss caused by pigmentary macular degeneration. Visual failure is progressive, bilateral and symmetrical, and leads irreversibly to blindness. This association represents a distinct disease entity classified as autosomal dominant cerebellar ataxia (ADCA) type II by Harding. The disease affectsprimarily the cerebellum and the retina by the moderate to severe neuronal loss and gliosis, but also many other central nervous system structures as the disease progresses. SCA7 is caused by expansion of an unstable trinucleotide CAG repeat in the ATXN7 gene encoding a polyglutamine (polyQ) tract in the corresponding protein, ataxin-7. Normal ATXN7 alleles contain 4-35 CAG repeats, whereas pathological alleles contain from 36->450 CAG repeats. Immunoblott analysis demonstrated that ataxin-7 is widely expressed but that expression levels vary among tissues. Instability of expanded repeats is more pronounced in SCA7 than in other SCA subtypes and can cause substantial lowering of age at onset in successive generations termed 'anticipation' so that children may become diseased even before their parents develop symptoms. The strong anticipation in SCA7 and the rarity of contractions should have led to its extinction within a few generations. There is no specific drug therapy for this neurodegenerative disorder. Currently, therapy remains purely symptomatic. Cellular models and SCA7 transgenic mice have been generated which constitute valuable resources for studying the disease mechanism. Understanding the pathogenetic mechanisms of neurodegeneration in SCAs should lead to the identification of potential therapeutic targets and ultimately facilitate drug discovery. Here we summarize the clinical, pathological, and genetic aspects of SCA7, and review the current understanding of the pathogenesis of this disorder. Further, we also review the potential therapeutic strategies that are currently being explored in polyglutamine diseases.
Child
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Male
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Female
;
Humans
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Mice
;
Animals
5.Anatomy as Elective Course for Fourth-Year Medical Students.
Tae Hwan KONG ; Sang Hun KIM ; Yong Hun SON ; Ki Sang CHUNG ; Ho Kyung JIN ; Hye Won JANG ; Chang Seok OH
Korean Journal of Physical Anthropology 2016;29(1):1-7
Five medical students in the fourth-year took anatomy as their elective courses for 1 month. They dissected one cadaver, and investigated Digital Report, under the course subjects as follows; (1) the shape of thyroid gland and the location of its isthmus, (2) the branches of left and right coronary arteries, (3) the number of blood vessels and bronchi on the hilum of lung, (4) topographical relationship of the renal vessels and ureter, and the shape of the renal pelvis, (5) the location and attachment of the appendix, (6) the penetration of median nerve through the pronator teres, (7) the sensory nerves and the extensor tendons on the dorsum of hand, (8) the branches of deep femoral artery. The pancreatic and live samples were processed and stained with H&E, for LM observation, since the individual had suffered from pancreatic cancer and got a Pylorus preserving pancreatico-duodenectomy (PPPD). At the last step of the elective course, students wrote small articles following the conventional method for writing manuscript. From the viewpoint of professor, the anatomy course for the fourth-year students were definitely different from that for first-year students, and had many positive effects in terms of anatomy education.
Appendix
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Blood Vessels
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Bronchi
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Cadaver
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Coronary Vessels
;
Education
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Femoral Artery
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Hand
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Humans
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Kidney Pelvis
;
Lung
;
Median Nerve
;
Pancreatic Neoplasms
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Pylorus
;
Students, Medical*
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Tendons
;
Thyroid Gland
;
Ureter
;
Writing
6.The Effects of Estrogen on Detrusor Contraction and the Expression of Muscarinic Receptors in Ovariectomized Rats.
Ho Young CHUNG ; Jin Seok CHANG ; Se Hun KIM ; Ki Hak SONG ; Young Seop JANG ; Dong Seok HAN
Korean Journal of Urology 2008;49(12):1105-1111
PURPOSE: The purpose of this study was to evaluate the effects of estrogen on detrusor contraction and the expression of muscarinic receptors in ovariectomized rats. MATERIALS AND METHODS: 24 Sprague-Dawley female virgin rats(12 weeks old) were separated into three groups of 8 rats each. Group I served as a control group, group II was the ovariectomized only rats(Ovx group) and Group III was given estradiol benzoate(0.8mg/kg/day) subcutaneously for 7 consecutive days, beginning 1 week after ovariectomy(Ovx+E group). At the end of the experimental period, each rat was sacrificed and the urinary bladder was removed for contractile studies. The expressions of M2 and M3 receptors in the bladder epithelium and the muscle layer were investigated by performing immunofluorescent staining. RESULTS: The Ovx group showed a significantly decreased bladder contractile function on the KCl and carbachol-induced contractile tests, whereas the Ovx+E group showed increased contractility(p<0.05). The Ovx+E group showed an increase of smooth muscle compared to the other groups. Ovariectomy induced a significant increase in the M3 receptors density in the bladder body, as compared to the control group(p<0.05) but there was no significant difference between the Ovx group and the Ovx+E group. CONCLUSIONS: Bladder dysfunction of menopausal women is thought not to be related with the changes of muscarinic receptors. Our results suggest that the detrusor contractility of menopausal women might be improved after estrogen replacement therapy.
Animals
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Contracts
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Epithelium
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Estradiol
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Estrogen Replacement Therapy
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Estrogens
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Female
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Humans
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Muscle Contraction
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Muscle, Smooth
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Muscles
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Ovariectomy
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Rats
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Receptors, Muscarinic
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Urinary Bladder
7.Bile Peritonitis Due to Spontaneous Rupture of Choledochal Cyst iagnosed by Hepatobiliary Scintigraphy in an Infant.
Jong Seok KIM ; Jang Hun LIM ; Sang Nam BAE ; Jun Woo LEE ; In Ju KIM ; Jae Hong PARK
Korean Journal of Pediatric Gastroenterology and Nutrition 2002;5(2):186-191
Choledochal cyst is a congenital anomaly with classic triad of abdominal pain, jaundice and right upper abdominal mass. Bile peritonitis caused by cyst rupture is relatively not rare in infancy. The mechanism of rupture must be epithelial irritation of the biliary tract by refluxed pancreatic juice caused by pancreatico-biliary malunion associated with mural immaturity in infancy, rather than an abnormal rise in ductal pressure or congenital mural weakness at a certain point. We experienced a case of bile peritonitis caused by spontanenous rupture of choledochal cyst in a 10-month-old girl presented with abdominal distension, persistent fever, diarrhea, irritability and intractable ascites. She was presumed as having bile peritonitis by bile colored ascitic fluid with elevated bilirubin level and diagnosis was made by 99mTc DISIDA hepatobiliary scan showing extrahepatic biliary leak. The perforated cyst was surgically removed and the biliary tree was reconstructed with a Roux-en-Y hepaticojejunostomy.
Abdominal Pain
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Ascites
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Ascitic Fluid
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Bile*
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Biliary Tract
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Bilirubin
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Choledochal Cyst*
;
Diagnosis
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Diarrhea
;
Female
;
Fever
;
Humans
;
Infant*
;
Jaundice
;
Pancreatic Juice
;
Peritonitis*
;
Radionuclide Imaging*
;
Rupture
;
Rupture, Spontaneous*
;
Technetium Tc 99m Disofenin
8.Extended-Spectrum beta-Lactamase and Multidrug Resistance in Urinary Sepsis Patients Admitted to the Intensive Care Unit.
Bumjoon KIM ; Sung Gyun KIM ; Seung Soon LEE ; Tae Seok KIM ; Yong Il HWANG ; Seung Hun JANG ; Joo Hee KIM ; Ki Suck JUNG ; Sunghoon PARK
Korean Journal of Critical Care Medicine 2014;29(4):257-265
BACKGROUND: The role of extended-spectrum beta-lactamase (ESBL)-producing or multidrug-resistant (MDR) organisms in patients with sepsis secondary to urinary traction infection (UTI) has not been investigated extensively in the intensive care unit (ICU) setting. METHODS: Patients with UTI sepsis admitted to the ICU were retrospectively enrolled in this study (January 2009-December 2012). We investigated the impact of ESBL-producing and ESBL-negative MDR organisms on hospital outcome. RESULTS: In total, 94 patients were enrolled (median age, 73.0 years; female, 81.9%), and ESBL-producing and ESBL-negative MDR organisms accounted for 20.2% (n = 19) and 30.9% (n = 29), respectively. Both patients with ESBL-producing and ESBL-negative MDR organisms were more likely to experience a delay in adequate antibiotic therapy than those with non-ESBL/non-MDR organisms (p < 0.001 and p = 0.032, respectively). However, only patients with ESBL-producing organisms showed a higher mortality rate (ESBL vs. ESBL-negative MDR vs. non-ESBL/non-MDR, 31.6% vs. 10.3%.vs. 10.9%, respectively). In multivariate analyses, ESBL production was significantly associated with hospital mortality (odds ratio, 11.547; 95micro confidence interval, 1.047-127.373), and prior admission was a significant predictor of ESBL production. CONCLUSIONS: Although both ESBL-producing and ESBL-negative MDR organisms are associated with delayed administration of appropriate antibiotics, only ESBL production is a significant predictor of hospital mortality among patients with UTI sepsis in the ICU setting.
Anti-Bacterial Agents
;
beta-Lactamases*
;
Drug Resistance, Multiple*
;
Female
;
Hospital Mortality
;
Humans
;
Intensive Care Units*
;
Mortality
;
Multivariate Analysis
;
Retrospective Studies
;
Sepsis*
;
Urinary Tract
;
Urinary Tract Infections
9.Relationship between the Expression of Sodium Iodide Symporter and the Findings of 99mTc-MIBI Scintimammography in the Primary Breast Cancer.
Ju Won SEOK ; Seong Jang KIM ; Hi Suk KWAK ; Chang Hun LEE ; In Ju KIM ; Yong Ki KIM ; Young Tae BAE ; Dong Soo KIM
Korean Journal of Nuclear Medicine 2002;36(6):325-332
No abstract available.
Breast Neoplasms*
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Breast*
;
Ion Transport*
;
Sodium Iodide*
;
Sodium*
10.Relationship between the Expression of Sodium Iodide Symporter and the Findings of 99mTc-MIBI Scintimammography in the Primary Breast Cancer.
Ju Won SEOK ; Seong Jang KIM ; Hi Suk KWAK ; Chang Hun LEE ; In Ju KIM ; Yong Ki KIM ; Young Tae BAE ; Dong Soo KIM
Korean Journal of Nuclear Medicine 2002;36(6):325-332
No abstract available.
Breast Neoplasms*
;
Breast*
;
Ion Transport*
;
Sodium Iodide*
;
Sodium*