1.Effect of Pantethine in the Treatment of Hyperlipidemia.
Kyung Pyo HONG ; Chung Hoo KANG ; Myoung Mook LEE ; Young Bae PARK ; Jungdon SEO ; Young Woo LEE
Korean Circulation Journal 1982;12(2):225-229
After pantethine in doses of 540 mg per day was administered for 8 weeks in 20 patients with hyperlipidemia, the serum levels of total cholesterol, triglyceride and HDL-cholesterol were compared with the pretreatment level. The serum level of total cholesterol decreased to 240+/-52 mg%[mean+/-standard deviation] after 4 weeks and 223+/-41 mg% after 8 weeks from the pretreatment level of 293+/-38 mg%(p<0.01). The serum triglyceride level also decreased to 254+/-109 mg% after 4 weeks and 239+/-114 mg% after 8 weeks from the pretreatment level of 375+/-126 mg%(p<0.01). But, there was no significant change in the serum levels of HDL-cholesterol before and after treatment (56+/-27 mg% beforAfter pantethine in doses of 540 mg per day was administered for 8 weeks in 20 patients with hyperlipidemia, the serum levels of total cholesterol, triglyceride and HDL-cholesterol were compared with the pretreatment level. The serum level of total cholesterol decreased to 240+/-52 mg%[mean+/-standard deviation] after 4 weeks and 223+/-41 mg% after 8 weeks from the pretreatment level of 293+/-38 mg%(p<0.01). The serum triglyceride level also decreased to 254+/-109 mg% after 4 weeks and 239+/-114 mg% after 8 weeks from the pretreatment level of 375+/-126 mg%(p<0.01). But, there was no significant change in the serum levels of HDL-cholesterol before and after treatment (56+/-27 mg% before treatment, 56+/-18 mg% after 4 weeks and 59+/-22 mg% after 8 weeks). Pantethine was well tolerated in most patients.
Cholesterol
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Humans
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Hyperlipidemias*
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Triglycerides
2.A Clinical Study of Tissue Valve Failure.
Duk Hyun KANG ; Ihn Ho CHAI ; Myoung Chan CHO ; Young Kwon KIM ; Duk Kyung KIM ; Dae Won SOHN ; Myoung Mook LEE ; Young Bae PARK ; Yun Shik CHOI ; Jung Don SEO ; Young Woo LEE
Korean Circulation Journal 1990;20(4):679-686
On reoperations for tissue valve failure from December 1981 to December 1989, we had diagnosed 71 cases as primary tissue failure. In those cases we found out risk factors of accelerated primary tissue failure and increased thrombogenecity. We reviewed also long-term follow-ups of 542 patients after tissue valve replacement from 1978 to 1982, and durability of tissue valve was evaluated with the freedom rate from primary tissue failure. The results were as follows. 1) Eight patients had undergone reoperation by Dec. 1989 ; 71 cases(80.7%) for primary tissue failure, 11 cases(12.5%) for prosthetic valve endocarditis, 4 cases(4.5%) for thromboembolism, and 2 cases(2.3%) for paravalvular leakage. primary tissue failure was the main cause(80.7%) of tissue valve failure. 2) Primary tissue failure occurred at a mean postoperative interval of 89.7 months(range : 19.9-143.2 months). 3)In children under the age of 18, mean implantation time was 62 months, and in adults mean implantation time was 96 months. In the child group primary tissue failure occurred earlier than in the adult group by 34 months(p<0.01) 4) Actuarial freedom from primary tissue failure was 97.6%+/-0.6% at 5 years and 84.4%+/-2.2% at 10 years. 5) The types and locations of prosthetic tissue valves resulted in no significant difference in durability. 6) Primary tissue failure was mainly caused by calcification of the cusps(76%) 7) In atrial fibrillation the incidence of atrial thrombi was 31.3% and left atrial thrombi was the most common finding(60%) In conclusion, 1) Durability of tissue valve for 10 years is acceptable, but the limited durability of tissue may be a major concern after 10 years. 2) In children under the age of 18, tissue valve should be avoided due to accelerated tissue failure. 3) Atrial fibrillation clearly increases the risk of thromboembolism and anticoagulation is considered to be required in patients with atrial fibrillation.
Adult
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Atrial Fibrillation
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Child
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Endocarditis
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Follow-Up Studies
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Freedom
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Humans
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Incidence
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Reoperation
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Risk Factors
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Thromboembolism
3.Haloperidol and clozapine differentially regulate signals pstream of glycogen synthase kinase 3 in the rat frontal cortex.
Myoung Sun ROH ; Myoung Suk SEO ; Yeni KIM ; Se Hyun KIM ; Won Je JEON ; Yong Min AHN ; Ung Gu KANG ; Yong Sung JUHNN ; Yong Sik KIM
Experimental & Molecular Medicine 2007;39(3):353-360
Glycogen synthase kinase 3 (GSK3) was recently suggested to be a potential target of psychotropics used in psychiatric illnesses such as schizophrenia and bipolar disorder. Relevant studies have found that antipsychotic drugs regulate GSK3 activity via an increase in either inhibitory serine phosphorylation or amount of GSK3 after acute or subchronic treatment. Recent evidence shows that GSK3 is regulated by dopaminergic or serotonergic systems implicated in the pathophysiology and treatment mechanisms of schizophrenia and bipolar disorder. Therefore, antipsychotics may regulate GSK3 via antagonizing dopaminergic or serotonergic activity. However, the signaling pathway that is involved in GSK3 regulation by dopaminergic or serotonergic systems has not been well established. Haloperidol is a typical antipsychotic with potent dopamine D(2) receptor antagonism. Clozapine is an atypical antipsychotic with potent serotonin 5HT(2) receptor antagonism. We injected rats with haloperidol or clozapine and examined the phosphorylation and amount of GSK3alpha/beta and its well-known upstream regulators Akt and Dvl in the rat frontal cortex by Western blotting. Both haloperidol and clozapine induced Ser21/9 phosphorylation of GSK3GSK3alpha/beta. Haloperidol increased the Ser473 phosphorylation of Akt transiently, whereas clozapine maintained the increase for 1 h. Haloperidol did not affect the phosphorylation and amount of Dvl, whereas clozapine increased both phosphorylation and the amount of Dvl. Our results suggest that GSK3 activity may be regulated by both typical and atypical antipsychotics and that Akt or Dvl, depending on the D(2)- or 5HT(2)- receptor antagonism properties of typical and atypical antipsychotics, mediate the regulation differently.
Adaptor Proteins, Signal Transducing/metabolism/*physiology
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Animals
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Antipsychotic Agents/*pharmacology
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Clozapine/*pharmacology
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Dopamine Antagonists/pharmacology
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Frontal Lobe/*drug effects/enzymology
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Glycogen Synthase Kinase 3/*metabolism
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Haloperidol/*pharmacology
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Male
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Phosphoproteins/metabolism/*physiology
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Phosphorylation
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Proto-Oncogene Proteins c-akt/metabolism/*physiology
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Rats
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Rats, Sprague-Dawley
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Serotonin Antagonists/pharmacology
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Signal Transduction
4.Regulation of the Circadian Gene CLOCK Expression by KCl Depolarization in B35 Rat Neuroblastoma Cells.
Won Je JEON ; Se Hyun KIM ; Myoung Suk SEO ; Ung Gu KANG ; Yong Sik KIM ; Yong Min AHN
Journal of Korean Neuropsychiatric Association 2006;45(1):21-27
OBJECTIVES: To investigate the effects of KCl on regulation of circadian gene CLOCK expression, we observed whether induction of CLOCK is influenced by KCl depolarization in B35 rat neuroblastoma cells. METHODS: B35 rat neuroblastoma cells were grown in Dulbecco's modified Eagle's medium supplemented with 10% FBS and 1% penicillin-streptomycin in a 37 degrees C humidified incubator with 5% CO2. Inhibitors including cycloheximide and actinomycin D were pretreated 1 hour before treatment with 50mM KCl. Immunoblotting with anti-CLOCK antibody was done. RESULTS: CLCOK is induced by 50 mM KCl in B35 Rat Neuroblastoma cells, and a maximal induction in CLOCK level reached peak at 8 to 20 hours. The pretreatment of cycloheximide and actinomycin D prevented the induction of CLOCK by 50 mM KCl. CONCLUSION: We suggest that KCl depolarization may play critical roles in several aspects of the circadian gene CLOCK expression.
Animals
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Circadian Clocks
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Cycloheximide
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Dactinomycin
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Immunoblotting
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Incubators
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Neuroblastoma*
;
Rats*
5.Parasitic infections in HIV-infected patients who visited Seoul National University Hospital during the period 1995-2003.
Sang Mee GUK ; Min SEO ; Yun Kyu PARK ; Myoung Don OH ; Kang Won CHOE ; Jae Lip KIM ; Min Ho CHOI ; Sung Tae HONG ; Jong Yil CHAI
The Korean Journal of Parasitology 2005;43(1):1-5
The prevalence of parasitic infections was investigated in human immunodeficiency virus (HIV)-infected patients (n = 105) who visited Seoul National University Hospital, Seoul, Korea, during the period from 1995 to 2003. Fecal samples were collected from 67 patients for intestinal parasite examinations, and sputum or bronchoalveolar lavage samples from 60 patients for examination of Pneumocystis carinii. Both samples were obtained from 22 patients. Thirty-three (31.4%) of the 105 were found to have parasitic infections; Cryptosporidium parvum (10.5%; 7/67), Isospora belli (7.5%; 5/67), Clonorchis sinensis (3.0%; 2/67), Giardia lamblia (1.5%; 1/67), Gymnophalloides seoi (1.5%; 1/67), and Pneumocystis carinii (28.3%; 17/60). The hospital records of the 11 intestinal parasite-infected patients showed that all suffered from diarrhea. This study shows that parasitic infections are important clinical complications in HIV-infected patients in the Republic of Korea.
AIDS-Related Opportunistic Infections/*parasitology
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Adult
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Feces/parasitology
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Female
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HIV Infections/*complications
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Humans
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Korea/epidemiology
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Male
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Middle Aged
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Parasitic Diseases/*epidemiology
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Research Support, Non-U.S. Gov't
6.A Case of Behcet's Disease with Multiple Longitudinal Ulcers over the Colon.
Young Jin KANG ; Hee Ug PARK ; Jong Han OK ; Tae Duk YUN ; Jin Youn LEE ; Mi Myoung KIM ; Dal Dyuk SEO
Korean Journal of Gastrointestinal Endoscopy 1996;16(3):511-516
We presented here a rare case of intestinal Behecet's disease simulating Grohn's disease. A 20 year old female complained of recurrence of oral ulcer, genital ulcer, arthralgia, erythema nodosum, abdominal pain and diarrhea, but she had no anal ulcer or anal fistulas. The colonoscopic examanation disclosed diffuse colonie involvement with multiple longitudinal ulcers and inflammatory pseudopolyposis. In hospital, she received ileocecectomy because of distal ilea perforation. Postoperative specimen showed multiple geographic ulcer on ileocecal region, creeping mesenteric fat and thickening of cecal wall. Pathological examination showed perivasculitis, transmural inflammation, fissuring, multiple lymph follicles which are compatible with intestinal Behect's disease. There were no granuloma sugges tive of Crohn's disease. Clinically, the patient met the international criteria of Behcet's disease. Punched out ulcer in the ileocecal region and pathological findings described above confirmed the diagnosis of intestinal Behcet's disease.
Abdominal Pain
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Arthralgia
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Colon*
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Crohn Disease
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Diagnosis
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Diarrhea
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Erythema Nodosum
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Female
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Fissure in Ano
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Granuloma
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Humans
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Inflammation
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Oral Ulcer
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Rectal Fistula
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Recurrence
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Ulcer*
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Young Adult
7.A Case of Metastasis-induced Acute Pancreatitis Improved by Chemotherap.
Pyoung Ju SEO ; Dong Min KIM ; Myoung Su KANG ; Soon Il LEE ; Hong Ja KIM
The Korean Journal of Gastroenterology 2005;46(5):409-412
Pancreatic metastases are found in up to 40% of patients with small cell lung cancer, but metastasis-induced acute pancreatitis is rare. Treatment of metastasis-induced acute pancreatitis is initially supportive, but failure of conservative management are common. There are few reports on aggressive treatment with chemotherapy which lead to rapid clinical improvement and prolongation of survival in patients with metastasis-induced acute pancreatitis. We experienced a case of metastasis-induced acute pancreatitis in a patient with small cell lung cancer. Despite conservative treatment with dietary restriction and intravenous fluid supply, serum amylase levels increased persistently with severe abdominal pain. After chemotherapy with irinotecan and carboplatin, abdominal pain and serum amylase levels resolved dramatically.
Acute Disease
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Aged
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Carcinoma, Small Cell/*secondary
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English Abstract
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Humans
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Lung Neoplasms/*pathology
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Male
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Pancreatic Neoplasms/complications/*secondary
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Pancreatitis/*etiology
8.Classification of Mouse Lung Metastatic Tumor with Deep Learning
Ha Neul LEE ; Hong-Deok SEO ; Eui-Myoung KIM ; Beom Seok HAN ; Jin Seok KANG
Biomolecules & Therapeutics 2022;30(2):179-183
Traditionally, pathologists microscopically examine tissue sections to detect pathological lesions; the many slides that must be evaluated impose severe work burdens. Also, diagnostic accuracy varies by pathologist training and experience; better diagnostic tools are required. Given the rapid development of computer vision, automated deep learning is now used to classify microscopic images, including medical images. Here, we used a Inception-v3 deep learning model to detect mouse lung metastatic tumors via whole slide imaging (WSI); we cropped the images to 151 by 151 pixels. The images were divided into training (53.8%) and test (46.2%) sets (21,017 and 18,016 images, respectively). When images from lung tissue containing tumor tissues were evaluated, the model accuracy was 98.76%. When images from normal lung tissue were evaluated, the model accuracy (“no tumor”) was 99.87%. Thus, the deep learning model distinguished metastatic lesions from normal lung tissue. Our approach will allow the rapid and accurate analysis of various tissues.
9.A Wide Spectrum of Axial Mesodermal Dysplasia Complex With Rhombencephalic Anomaly: A Case Report.
Kang Won KIM ; Jeoung Hwan SEO ; Myoung Hwan KO ; Yu Hui WON ; Sung Hee PARK
Annals of Rehabilitation Medicine 2016;40(1):162-167
Axial mesodermal dysplasia complex (AMDC) arises in variable combinations of craniocaudal anomalies such as musculoskeletal deformities, neuroschisis, or rhombencephalic developmental disorders. To the best of our knowledge, the co-existence of AMDC with associated musculoskeletal anomalies, medullary neuroschisis with mirror movements, and cranial nerve anomalies has not yet been reported. Here, we report the case of a 4-year-old boy whose clinical features were suggestive of Goldenhar syndrome and Poland syndrome with Sprengel deformity. Moreover, he showed mirror movements in his hands suspected of rhombencephalic malformation, and infranuclear-type facial nerve palsy of the left side of his face, the opposite side to the facial anomalies of Goldenhar syndrome. After conducting radiological studies, he was diagnosed with medullary neuroschisis without pontine malformations and Klippel-Feil syndrome with rib anomalies. Based on these findings, we propose that clinical AMDC can be accompanied by a wide variety of musculoskeletal defects and variable degrees of central nervous system malformations. Therefore, in addition to detailed physical and neurological examinations, imaging studies should be considered in AMDC.
Central Nervous System
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Child, Preschool
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Congenital Abnormalities
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Cranial Nerves
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Facial Nerve
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Goldenhar Syndrome
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Hand
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Humans
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Klippel-Feil Syndrome
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Male
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Medulla Oblongata
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Mesoderm*
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Neurologic Examination
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Paralysis
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Poland Syndrome
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Rhombencephalon
;
Ribs
10.Oxidative Stress of Mouse Fed Irradiated Diet Containing High Unsaturated Fatty Acid.
Dae Young SEO ; Sun Young PARK ; Myoung Hee KANG ; Kwang Sun SUH ; Sun Yung LY
The Korean Journal of Nutrition 2006;39(7):599-609
In this study, we investigated the in vivo effect by intake of the irradiated foods such as mackerel and sesame seed which are high in unsaturated fatty acid through TBARS (thiobarbituric acid reactive subtance) and the tissue pathological and genotoxicological test. Thirty two ICR mice are divided into four groups, one non-irradiated (control) group and three irradiated (5, 10, 20 kGy, respectively) groups. Sesame seed and pulverized mackerel in modified AIN93M diet were mixed together then divided into four identical parts. Three parts of them were irradiated by doses of 5, 10, and 20 kGy. These experimental diet were fed to each group for 4, 8 and 16 weeks. The results of the study were as follows: No significant differences in weight gain were found in each group. Peroxide value of the irradiated diet was higher than that of the non-radiated one and also increased according to the storage period. TBA values in plasma, liver, kidney and Peyer's patch were not significantly different among 4 groups. DNA% in tail, tail length (TL) and tail moment (TM) values of the blood lymphocyte in 4, 8 and 16 week groups and the liver in 16 week group were much measured over the control. DNA% in tail of kidney of 8 week group was significantly larger than the control and TL and TM of 8 week and TM of 16 week groups showed a tendency of higher values. By Peyer's patch, DNA% in tail of 8 week group, DNA% in tail and TM of 16 week groups increased significantly over the control. Ultrastructural examination shows myeline figures and swollen mitochondria in parietal cells and intestinal epithelial cells of 8 and 16 weeks groups. After this study, we need further investigations on the safety of highly consumed foods which contai high contents of unsaturated fatty acid, largely imported and which are possible to be irradiated.
Animals
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Comet Assay
;
Diet*
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Epithelial Cells
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Food Irradiation
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Kidney
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Liver
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Lymphocytes
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Mice*
;
Mice, Inbred ICR
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Mitochondria
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Myelin Sheath
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Oxidative Stress*
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Perciformes
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Plasma
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Rabeprazole
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Sesamum
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Thiobarbituric Acid Reactive Substances
;
Weight Gain