• Title/Summary/Keyword: 병태생리

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Metabolic Topography of Parkinsonism

  • Kim, Jae-Seung
    • Nuclear Medicine and Molecular Imaging
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    • v.41 no.2
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    • pp.141-151
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    • 2007
  • Parkinson's disease is one of the most frequent neurodegenerative diseases, which mainly affects the elderly. Parkinson's disease is often difficult to differentiate from atypical parkinson diorder such as progressive supranuclear palsy, multiple system atrophy, dementia with Lewy body, and corticobasal ganglionic degeneration, based on the clinical findings because of the similarity of phenotypes and lack of diagnostic markers. The accurate diagnosis of Parkinson's disease and atypical Parkinson disorders is not only important for deciding on treatment regimens and providing prognosis, but also it is critical for studies designed to investigate etiology and pathogenesis of parkinsonism and to develop new therapeutic strategies. Although degeneration of the nigrostriatal dopamine system results in marked loss of striatal dopamine content in most of the diseases causing parkinsonism, pathologic studies revealed different topographies of the neuronal cell loss in Parkisonism. Since the regional cerebral glucose metabolism is a marker of integrated local synaptic activity and as such is sensitive to both direct neuronal/synaptic damage and secondary functional disruption at synapses distant from the primary site of pathology, an assessment of the regional cerebral glucose metabolism with F-18 FDG PET is useful in the differential diagnosis of parkinsonism and evaluating the pathophysiology of parkisonism.

Current Standpoints on the Pathophysiology of Benign Vocal Fold Lesions (양성 성대 질환의 병태생리에 관한 최신지견)

  • Kwon, Tack-Kyun;Kim, Min-Su
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.26 no.2
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    • pp.91-93
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    • 2015
  • Substantial confusion exists regarding the nomenclature of benign vocal fold lesions (BVFL), because there were no pathologically diagnostic findings and deep understanding of pathogenesis in the past. There is no consensus on specific labels for BVFL, nor are the most commonly used terms defined. There is a need for a defined nomenclature for the purpose of improving communication among clinicians and with patients. Furthermore, precise definitions of BVFL will facilitate clinical research of voice disorders and may lead to a better understanding of outcomes for BVFL treatment. Laryngoscope, stroboscope, voice evaluation are used to diagnose BVFL. The objective of this review article was to develop a new paradigm of BVFL nomenclature using patient's history, stroboscope, voice therapy results, and operative findings. Furthermore, precise definitions of BVFL will facilitate clinical research of voice disorders and may lead to a better understanding of outcomes for BVFL treatment.

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Pathophysiology and new treatment of itch (가려움증의 병태생리 및 최신치료)

  • Jung, Min Je;Choi, Yong Won;Chung, Bo Young;Park, Chun Wook;Kim, Hye One
    • Journal of the Korean Medical Association
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    • v.61 no.11
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    • pp.670-677
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    • 2018
  • Many of the patients visit the doctors because of itching sensation. Itching is an unpleasant sensation. In the epidermal keratinocytes, various neurotransmitters and receptors are related itching. The itch signal is mainly transmitted through the lateral spinal ganglion-derived nerve fibers extending to the lower epidermis. Many mediators such as histamine are involved in the itching pathway. It can be helpful in the treatment of patients having itching sensation with a lot of new therapies from the basic medication such as antihistamines. Also, many drugs are currently under study.

Depression and Coronary Artery Disease(I) : Pathophysiologic Mechanisms (우울증과 관상동맥 질환(I) : 병태생리적 기전)

  • Bae, Kyung-Yeol;Kim, Jae-Min;Yoon, Jin-Sang
    • Korean Journal of Biological Psychiatry
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    • v.15 no.4
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    • pp.275-287
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    • 2008
  • Depression and coronary artery disease are both highly prevalent diseases. Many previous studies suggest that depression is a common comorbid condition in patients with coronary artery disease and has a significant negative impact on the onset, course, and prognosis of coronary artery disease. However, the exact mechanisms that underlie the association between these two diseases remain unclear. Pathophysiologic mechanisms that may explain the effect of depression on coronary artery disease include hypercoagulability, hypothalamus-pituitary-adrenal axis and autonomic nervous system dysregulation, altered inflammatory response. On the contrary, pathophysiologic mechanisms in coronary artery disease that affect depression are less well known. It is also suggested that both diseases may share a common genetic vulnerability. The authors reviewed the literature on the pathophysiologic relationships of depression and coronary heart disease.

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mRNA Expression Differences of uPA, uPAR in Eutopic Endometrium of Advanced Stage Endometriosis Patients (중증 자궁내막증 환자의 자궁내막과 정상인 자궁내막에서 uPA, uPAR mRNA 발현의 차이에 관한 연구)

  • Hur, Sung Eun;Lee, Ji Young;Lee, Woon Jung;Chung, Hye-Sung;Chung, Hye Won
    • Clinical and Experimental Reproductive Medicine
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    • v.33 no.4
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    • pp.229-236
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    • 2006
  • Objective: We investigated the expression of uPA and uPAR in eutopic endometrium of advanced stage endometriosis and control patients. Methods: The 33 endometriosis patients and 32 controls were enrolled. Endometrial samples were obtained from 65 premenopausal women aged 29-44 years, undergoing laparoscopic surgery or hysterectomy for non-malignant lesions. Sufficient samples were collected from 33 patients with endometriosis stage Ill and IV and 32 controls without endometriosis confirmed by laparoscopic surgery. The mRNA expression of uPA and uPAR from eutopic endometrium were analyzed by RT-QC PCR. Results: The mRNAs of uPA and uPAR were expressed in eutopic endometrium from endometriosis and normal controls throughout the menstrual cycle. Uterine endometrium from women with endometriosis expresses significantly (p<0.05) higher levels of u-PA mRNA than endometrium from normal women without endometriosis in the proliferative phase. There were no significant differences in expression of uPAR in eutopic endometrium between controls and endometriosis patients. Conclusion: These results suggest that eutopic endometrium from endometriosis patients may be more invasive and prone to peritoneal implantation because of greater u-PA mRNA expression than endometrium from women without endometriosis. Thus, increased proteolytic activity may be one etiology for the invasive properties of the endometrium resulting in the development of endometriosis.