• Title/Summary/Keyword: Degenerative change

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Pathogenetic Impact of Vacuolar Degeneration by Accelerated Transport of Helicobacter pylori VacA

  • Choi, Kyung-Min;Park, Jeong-Kyu;Hwang, Se-Young
    • Journal of Microbiology and Biotechnology
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    • v.13 no.5
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    • pp.666-672
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    • 2003
  • Vacuolar degeneration of the gastric epithelial cells is a characteristic feature of the derangement of mucosa where Helicobacter pylori colonizes, and H. pylori vacuolating cytotoxin (VacA) has been suggested to playa key role in it. To elucidate the VacA-involved degenerative mechanism, VacA was purified, and its impact on degeneration of HeLa cells was determined. In the presence of ammonium chloride, cell vacuolation by VacA was dose-and time-dependent, however, no detectable degeneration of the cells was observed with the VacA concentration tested. A further increase of vacuolation was shown in cells pre-treated with diethyl pyrocarbonate (DEPC) , and this resulted in a change of the cell morphology to become spherical. Similar phenomena were also observed when HeLa cells were co-cultivated with intact H. pylori cells. It was remarkable to note that the degree of growth inhibition was proportional to the increase in vacuole formation, suggesting that the vacuolation rate would be critical for cell degeneration. Surprisingly, although VacA was itself inhibited by DEPC, its uptake was markedly increased by this agent, similar to that found in cells with Nabutyrate. These data indicate that the cell's tolerance of VacA transport may be critical for vacuolar degeneration and may be changeable during H. pylori inhabitation.

General Perspectives for Molecular Nuclear Imaging (분자핵의학영상 개관)

  • Chung, June-Key
    • The Korean Journal of Nuclear Medicine
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    • v.38 no.2
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    • pp.111-114
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    • 2004
  • Molecular imaging provides a visualization of normal as well as abnormal cellular processes at a molecular or genetic level rather than at a anatomical level. Conventional medical imaging methods utilize the imaging signals produced by nonspecific physico-chemical interaction. However, molecular imaging methods utilize the imaging signals derived from specific cellular or molecular events. Because molecular and genetic changes precede anatomical change in the course of disease development, molecular imaging can detect early events in disease progression. in the near future, through molecular imaging we can understand basic mechanisms of disease, and diagnose earlier and, subsequently, treat earlier intractable diseases such as cancer, neuro-degenerative diseases, and immunologic disorders. In beginning period, nuclear medicine started as a molecular imaging, and has had a leading role in the field of molecular imaging. But recently molecular imaging has been rapidly developed. Besides nuclear imaging, molecular imaging methods such as optical imaging, magnetic resonance imaging are emerging. Each imaging modalities have their advantages and weaknesses. The opportunities from molecular imaging look bright. We should try nuclear medicine continues to have a leading role in molecular imaging.

Dietary Fiber Intake of Korean (한국인의 식이섬유 섭취 실태)

  • 이혜성
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.26 no.3
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    • pp.540-548
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    • 1997
  • According to the data published in 1990s on the intake of dietary fiber(DF) of Korean, DF intake of Korean has been gradually decreasing in the last two decades. Mean daily intake of DF in 1990s is estimated to be in the rage of 17-20g per capita and over seventy five percent of the subjects examined appeared to consume DF less than 20g per day. The major food sources of Df in Korean diet include cereals, vegetables, fruits, seaweeds and seasonings. The present level of DF intake of Korean is lower than the tentatively recommended minimum intake of DF. It is predicted that, if the present trend of change on food consumption pattern is maintained, the gradual increases in the incidence of chronic degenerative diseases will be continuing. Therefore, the beneficial effects of DF on health care and disease control should be emphasized through the nutritional education and high level consumption of DF needs to be strongly recommended in the dietary guideline. In order to raise the daily consumption of DF, more whole grain cereals need to be used as a part of staple and more frequent intake of legumes and seaweeds is required as well as the development of high-fiber diet recipes and natural high-fiber products.

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A RESEARCH FOR THE RELATIVE SIGNAL INTENSITY OF THE RETRODISCAL TISSUE IN THE TEMPOROMANDIBULAR JOINT DISORDER PATIENTS ON MRI (턱관절 질환환자의 MRI상 원판후 조직의 상대적 신호강도에 대한 연구)

  • Ha, Won-Suk;Yoon, Hyun-Joong;Lee, Sang-Hwa
    • Maxillofacial Plastic and Reconstructive Surgery
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    • v.29 no.3
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    • pp.211-216
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    • 2007
  • Temporomandibular joint disorders (TMD) often show muscular disorder, internal derangement and degenerative change of articular surface of the condyle. It is important to choose adequate diagnostic method for obtaining data for the diagnosis and treatment. Magnetic Resonance Imaging (MRI) has some advantages, because it shows good resolution image for the soft tissue and it is not invasive to the human body. We have performed serial research about the retrodiscal tissue of the TMJ according to the progress of the disease, using T2 weighted image, since 2002. In this study, we applicated resized observation area to compare signal intensity between the retrodiscal tissue of the TMJ and cerebral gray matter, using T2 weighted image.

F-18 FDG Uptake in a Toxic Autonomous Thyroid Nodule

  • Lee, Myoung-Hoon;Park, Chan-H.;Kim, Hyun-Soo;Yoon, Seok-Nam;Hwang, Kyung-Hoon
    • The Korean Journal of Nuclear Medicine
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    • v.35 no.4
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    • pp.286-287
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    • 2001
  • A 44 year-old male patient was undergoing diagnosis and therapy for acute myelogenous leukemia (AML, M2). On physical examination a thyroid mass was palpated in the left lower lobe. He had palpitation and intolerance to heat. Thyroid function tests revealed hyperthyroidism; T3: 150ng/dl (N:60-90), fT4: 2.26 ng/dl (N:0.70-1.80), TSH: 0.01 ulU/ml (N:0.25-5.00). Ultrasonography demonstrated a hypoechoic mass with scattered calcifications measuring 2.55 2.03 3.64 cm in size. F-18 FDG camera-based PET scan performed as a follow-up study of AML revealed a focal increased uptake in the left neck, where an autonomous nodule was detected on Tc-99m thyroid scan. After the diagnosis of toxic autonomous nodule, Goetz disease, he underwent surgical nodulectomy. Microscopically, the nodule contained follicular proliferation with degenerative change but without evidence of thyroid carcinoma. Focal uptake in autonomous thyroid nodules is due to increased glycolysis within the nodules.

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The Improvement Two Cases Coughing and Sputum sign Sequela of Pneumonia by Homins Placenta Aqua-Acupuncture (자하거 약침 투여후 기침 가래 증상이 호전된 폐렴 후유증 환자 2례)

  • Kim, Eun-Gon;Park, Young-Yeob;Lee, Kwang-Ho;Lee, Han-Bae;Jang, Sung-Ik;Kim, Sung-Kyun;Shim, Yun-Sueb;Lee, Jung-Hee
    • Journal of Pharmacopuncture
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    • v.6 no.3
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    • pp.65-73
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    • 2003
  • Coughing and sputum are symptoms of sequela of Pneumonia. Oriental medicine call it Hae suo Hae su is common sign of lung disease. Hominis Placenta is the dried placenta of a healthy women. The nature of Hominis Placenta is warm and its taste sweet-salty. It has correspondence to the meridians of lung and kindey. Hominis Placenta acupuncture therapy has effect on invigoration of vital energy nourishing blood and tonifying the essence. It can be applied to the disease as Asthma, pulmonary tuberculosis, chronic hepatitis, liver cirrhosis, degenerative change and cerebrovascular disease. We treated two cases coughing and sputum sign Sequela of Pneumonia by Hominis Placenta Aqua-Acupuncture. The symptoms was improved and the patients satisfied.

Analytic Study of 362 Bile Cytologic Materials (담즙 세포학 표본 362건의 검색)

  • Koh, Jae-Soo;Ha, Chang-Won;Myong, Na-Hye;Cho, Kyung-Ja;Jang, Ja-June
    • The Korean Journal of Cytopathology
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    • v.2 no.2
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    • pp.73-78
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    • 1991
  • A total of 362 bile samples from 104 patients with evidence of biliary tract obstruction were submitted for diagnostic cytology from January, 1989 to April, 1991. The patients were classified based on the obstructive cause, and the cytologic results were reviewed. 298 of the specimens were from patients with intrabiliary malignant structure, and 17 were from patients with extrabiliary malignant compression or benign biliary obstruction. Bile cytology was positive for carcinoma in 42 samples from patients with intrabiliary malignant stricture, and the diagnostic sensitivity was 14%. There were no false positive cases. We concluded that the cause of low sensitivity was degenerative change of cell due to prolonged sampling time. What is noteworthy was the high prevalence of Clonorchis sinensis eggs, being detected in 25 patients with intrabiliary malignancy, supporting the association between clonorchiasis and biliary tree malignancy.

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The Anti-oxidative Effect of Oral Administration of NYD (Nocyongdaebo-tang) in Oxidized Rats induced by AAPH (녹용대보탕(鹿茸大補湯)이 AAPH로 유발된 산화병태(酸化病態)모델 흰 쥐의 항산화(抗酸化) 작용(作用)에 미치는 영향)

  • Bae, Na-Young;Ahn, Taek-Won
    • Journal of Sasang Constitutional Medicine
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    • v.19 no.2
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    • pp.155-169
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    • 2007
  • 1. Objectives This study aimed to investigate the anti-oxidative effect of Nocyongdaebo-tang (NYD) decoction in oxidized rats induced by AAPH. 2. Methods AAPH (2.2-azobis-2 aminodinopropane-hydrochloride) was injected intraperitoneally to induce oxidization and NYD was orally administered to the rats. To observe the anti-oxidative effect of NYD, we performed blood chemistry analysis, histological analysis, and evaluated the levels of SOD, catalase, glutathione, NO and MDA in liver. 3. Results & Conclusions 1) Serum Albumin level was increased significantly in the NYD group as compared with the control group and the saline group. 2) Serum LDL-cholesterol level was reduced significantly in the NYD group as compared with the control group. 3) GPT level in liver was reduced significantly in the NYD group as compared with the control group. 4) SOD, catalase activity and glutathione levels were increased significantly in the NYD group as compared with the control group and the saline group. 5) The levels of NO and MDA were reduced significantly in the NYD group as compared with the control group. 6) The degenerative change of liver tissue of NYD group was decreased in comparison with the control group. In conclusion, NYD decoction is considered to have an anti-oxidative effect in rats.

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The Change of balance index to balance training in Osteoarthritis (퇴행성관절염 환자들에게 균형훈련이 균형지수에 미치는 영향)

  • Kim, Chan-Kyu;Lee, Jeong-Hun
    • Journal of Korean Physical Therapy Science
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    • v.18 no.3
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    • pp.93-99
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    • 2011
  • Purpose : In order to investigate the effects of balance training on patients with degenerative arthritis. Methods : 30 participants aged 60 or older participated in balance training for an 8-week period. The effects of the balance training were measured by the visual analog scale(VAS) and static and dynamic balancing. The following are the results of the study. Results : There were no statistically significant differences in measurements of pain when control group participants were at rest and while walking as measured by VAS, but there were statistically significant reductions for the experiment group. Within the control group, there were no statistically significant differences between pretest and posttest results for opened and closed-eye static balance index and visual dynamic balance index. However, within the experiment group, there were statistically significant differences between pretest and posttest results for opened and closed-eye static and dynamic balance indices. Conclusion : The results above provide evidence that balance training effects pain and balance of patients with osteoarthritis and aids in functional movement.

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A Study of Joint Therapy (II) (관절치료에 관한 연구 (II))

  • Bae, Sung-soo;Lee, Myung-hee;Lee, Sang-yeul;Kim, Sang-soo
    • PNF and Movement
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    • v.7 no.4
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    • pp.17-23
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    • 2009
  • Purpose : The objective of this study was conducted to find out treatment of weight bearing joint problems. Method : This is a literature study with books, seminar note and international PNF course books. Result : In joint therapy have to consider that what kind joint mechanics during movement, what kind relation between rotatory component of the force and translatory component of the force, what kind muscles are in the global mobilizer(GM) and local stabilizer(LS). One joint has muscle imbalance between GM and LS. It will make joint surface degenerative change which will make joint pain. Conclusion : Joint therapy is not only joint mobilization but also biomechanics of joint and GM's and LS's role. Total knee of hip joint replacement is not perfect. Before surgery have to be find out problem solving method within the physical medicine.

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