• Title/Summary/Keyword: medical school

검색결과 19,745건 처리시간 0.045초

Pathophysiological Roles of AMP in Hypertrophied Heart

  • Chunhua Cao;Han, Jeong-Hee;Kim, Sung-Zoo;Cho, Kyung-Woo;Kim, Suhn-Hee
    • Proceedings of the Korean Biophysical Society Conference
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    • 한국생물물리학회 2003년도 정기총회 및 학술발표회
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    • pp.31-31
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    • 2003
  • Cardiac atrium is now well-known as an endocrine organ which secretes atrial natriuretic peptide (AMP), participating in the regulation of body fluid and blood pressure. ANP is released mainly from cardiac muscle cells in response to various physiological and pathological conditions to induce atrial stretch. Ca$\^$2+/ may be one of the most important factors affecting ANP secretion even though controversy still persists. The aim of the present study is to investigate the effect of lysophosphatidylcholines (LPCs) and moxonidine on atrial hemodynamics and ANP secretion in hypertrophied atria. LPC is an endogenous phospholipid released from cell membrane during ischemia, and moxonidine is a imidazoline 1 (Il) receptor agonoist.

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Risk factors for prostate-specific antigen persistence in pT3aN0 prostate cancer after robot-assisted laparoscopic radical prostatectomy: a retrospective study

  • Jun Seop Kim;Jae Hoon Chung;Wan Song;Minyong Kang;Hyun Hwan Sung;Hwang Gyun Jeon;Byong Change Jeong;Seong Il Seo;Hyun Moo Lee;Seong Soo Jeon
    • Journal of Yeungnam Medical Science
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    • 제40권4호
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    • pp.412-418
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    • 2023
  • Background: The aim of this study was to evaluate the risk factors for prostate-specific antigen (PSA) persistence in pathological stage T3aN0 prostate cancer (PCa) after robot-assisted laparoscopic radical prostatectomy (RALP). Methods: A retrospective study was performed on 326 patients with pT3aN0 PCa who underwent RALP between March 2020 and February 2022. PSA persistence was defined as nadir PSA of >0.1 ng/mL after RALP, and the risk factors for PSA persistence were evaluated using logistic regression analysis. Results: Among 326 patients, 61 (18.71%) had PSA persistence and 265 (81.29%) had PSA of <0.1 ng/mL after RALP (successful radical prostatectomy [RP] group). In the PSA persistence group, 51 patients (83.61%) received adjuvant treatment. Biochemical recurrence occurred in 27 patients (10.19%) in the successful RP group during the mean follow-up period of 15.22 months. Multivariate analysis showed that the risk factors for PSA persistence were large prostate volume (hazard ratio [HR], 1.017; 95% confidence interval [CI], 1.002-1.036; p=0.046), lymphovascular invasion (LVI) (HR, 2.605; 95% CI, 1.022-6.643; p=0.045), and surgical margin involvement (HR, 2.220; 95% CI, 1.110-4.438; p=0.024). Conclusion: Adjuvant treatment may be needed for improved prognosis in patients with pT3aN0 PCa after RALP with a large prostate size, LVI, or surgical margin involvement.

A Murine Model of Toluene Diisocyanate-induced Contact Hypersensitivity

  • Chai, Ok Hee;Park, Sung Gil;Sohn, Jang Sihn;Hwang, Seung Soo;Li, Guang Zhao;Han, Eui-Hyeog;Kim, Hyoung Tae;Lee, Moo Sam;Lee, Hurn-Ku;Lee, Yong Chul;Song, Chang Ho
    • IMMUNE NETWORK
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    • 제2권3호
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    • pp.158-165
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    • 2002
  • Background: Toluene diisocyanate (TDI) can cause contact allergy and occupational asthma, but the mechanism underlying sensitization to this chemical compound remains controversal. Also the correlation of mast cell with contact hypersensitivity (CHS) and the role of mast cell in the TDI-induced CHS is unknown. This issue was investigated by administrating TDI on the skin of genetically mast cell-deficient WBB6F1/$J-Kit^{W}/Kit^{W-v}$ ($W/W^{V}$) and congenic normal WBB6F1/J-Kit+/+ (+/+) mice. Methods: To development of animal model of TDI-induced CHS and to investigate the correlation of mast cell with CHS and the role of mast cell in the TDI-induced CHS, $W/W^V$ and +/+ mice were sensitized with TDI on the back skin at day 1 and day 8, and then challenged with 1% TDI on the ear at day 15. At 1, 2, 4, 8, and 24 hours after 1% TDI challenge, the ear thicknesses were measured. It was investigated the histologic changes of dermis in the ear of $W/W^V$ and +/+ mice at 24 hours after 1% TDI challenge. Results: TDI induced a significant ear swelling response in $W/W^V$ and +/+ mice. TDI induced the significant infiltrations of polymorphonuclear leukocytes and eosinophils in $W/W^V$ and +/+ mice, but not of mast cells in normal mice. And TDI increased a characteristic extent of mast cell degranulation in normal mice. There were no significant differences in the ear swelling and the infiltrations of polymorphonuclear leukocytes and eosinophils of normal versus $W/W^V$ mice, either at baseline or after TDI-induced CHS. Conclusion: From the above results, TDI can be used as a murine CHS model, and the mast cells may not be essential in TDI-induced CHS.

Evaluation of Necessity of Clinical Nutrition Education in the Medical School Curriculum (의과대학 교육과정중 임상영양교육의 필요성 평가)

  • 장현숙;권정숙
    • Journal of the Korean Society of Food Science and Nutrition
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    • 제25권3호
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    • pp.415-422
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    • 1996
  • This study was conducted to evaluate the necessity of clinical nutrition education in the medical school curriculum. One hundred and eighty five medical school students, residents, nurses, and forty undergraduate students majoring in food science and nutrition were involved in this study. The survey included questions about nutritional knowledge, necessity of nutrition counseling, necessity of clinical nutrition and nutritional attitudes. The nutritional knowledge scores of the subjects in medical school and residents were significantly lower than those of the students majoring in food science and nutrition. Subjects of 91.3% strongly agreed to the necessity of nutrition counseling for patients ; 78.9% agreed that the present nutrition education in medical schools was inadequate. Most subjects (94.1%) agreed that clinical nutrition was an important field in the treatment of diseases. The medical profession is facing the challenges of the 1990s with the shift to outpatient care and preventative services. Clinical nutrition is an essential element in the process of curriculum change. The nutrition educator will be expected to take a leading role in integrating clinical nutrition into medical school curriculum.

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An Exploratory Study of Factors Affecting Satisfaction of Medical School Life (의과대학생의 학교생활 만족도에 미치는 요인 탐색)

  • Jun, Soo Koung;Park, Kwi Hwa;Song, Phil Hyun;Bae, Young Kyung;Kim, Seong Yong
    • Korean Medical Education Review
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    • 제18권3호
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    • pp.174-179
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    • 2016
  • The purpose of this study is to examine the factors that influence school life satisfaction based on personal variables, self-esteem, interpersonal relationships, and perception of the educational environment at a medical school in Korea. The data were collected from 228 medical students who agreed to participate in the study at a medical school. The Dundee Ready Medical Environment Measure (DREEM) and the self-esteem scale by Rosenberg were used. Questions measuring satisfaction of medical school life and interpersonal relationships (with professors, with senior/junior students, and with friends) were asked using a 5 point Likert scale. The data were analyzed by t-test, analysis of variance, and multiple regression analysis. The satisfaction of medical school life of male students was significantly higher than female students and increased with years of schooling. In DREEM, the students' perception of teachers decreased by school years. The relationship with senior and junior students of third year students was higher than other school years. The result of the regression analysis to determine the variables that affect satisfaction of medical school life showed that interpersonal relationships with senior and junior students, the students' social self-perception, and the students' perception of learning were significant. The results of this study will help medical schools in their plans to improve the level of satisfaction for the happiness and successful academic achievements of their students.

Severe Endobronchial Inflammation Induced by Aspiration of a Ferrous Sulfate Tablet

  • Lim, Sang Youn;Sohn, Sung Birm;Lee, Jung Min;Lee, Ji Ae;Chung, Sangmi;Kim, Junga;Choi, Juwhan;Kim, Sehwa;Yoo, Ah Young;Roh, Jong Ah;Park, Haein;Kim, Won Shik;Sim, Jae Kyeom;Shim, Jae Jeong;Min, Kyung Hoon
    • Tuberculosis and Respiratory Diseases
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    • 제79권1호
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    • pp.37-41
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    • 2016
  • Iron supplements such as ferrous sulfate tablets are usually used to treat iron-deficiency anemia in some elderly patients with primary neurologic disorders or decreased gag reflexes due to stroke, senile dementia, or parkinsonism. While the aspiration of ferrous sulfate is rarely reported, it is a potentially life-threatening condition that can lead to airway necrosis and bronchial stenosis. A detailed history and high suspicion of aspiration are required to avoid delays in diagnosis and treatment. The diagnosis can be confirmed by bronchoscopic examination and a tissue biopsy. Early removal of the aspirated tablet prevents acute complications, such as bronchial necrosis, hemoptysis, and lobar consolidation. Tablet removal is also necessary to prevent late bronchial stenosis. We presented the first case in Korea of a ferrous sulfate tablet aspiration that induced severe endobronchial inflammation.