• Title/Summary/Keyword: Pathological development

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ATTACHMENT AND ATTACHMENT DEVELOPMENT (애착과 애착의 발달)

  • Jang, Hwee-Sook
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • v.15 no.1
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    • pp.16-27
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    • 2004
  • The purpose of this article is to review the recent studies about what attchment is, which historical background it has, how it develops and affects on the following development. Also the clinical implications of attachment and problems for its clinical application were discussed. As the quality of the attachment formed at earlier years is continued for a lifetime as the form of the internal working model, it affects persons' pathological development as well as normal one. Accordingly this article will be able to give a insight for prevention and treatment of pathological attachment and various psychological disorders.

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Keratinocytic Vascular Endothelial Growth Factor as a Novel Biomarker for Pathological Skin Condition

  • Bae, Ok-Nam;Noh, Minsoo;Chun, Young-Jin;Jeong, Tae Cheon
    • Biomolecules & Therapeutics
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    • v.23 no.1
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    • pp.12-18
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    • 2015
  • Skin is an emerging target tissue in pharmaceutical and cosmetic science. Safety assessment for dermal toxicity is a critical step for development of topically applicable pharmaceutical agents and ingredients in cosmetics. Urgent needs exist to set up toxicity testing methods for dermal safety, and identification of novel biomarkers for pathological cutaneous alteration is highly required. Here we will discuss if vascular endothelial growth factor (VEGF) has a potential as a biomarker for dermal impairment. Experimental and clinical evidences for induction of keratinocytic VEGF under pathological conditions will be reviewed.

Pathological Changes in Cultured Korean Catfish (Silurus asotus) Artficially Infected with Aeromonas veronii (Aeromonas veronii의 실험적 감염에 의한 양식 메기, Silurus asotus의 병리학적 변화)

  • Kim, Jin-Do;Do, Jeong-Wan;Choi, Hye-Sung;Seo, Jung-Soo;Jung, Sung-Hee;Jo, Hyae-In;Park, Myung-Ae;Lee, Nam-Sil;Park, Sung-Woo
    • Korean Journal of Environmental Biology
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    • v.31 no.4
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    • pp.486-492
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    • 2013
  • Recently, a new disease showing symptoms such as epidermal exfoliation and muscular necrosis occurred in cultured Korean catfish. Although the mortality of fishes was low but the economic damages owing to loss of commercial value were severe. The authors isolated the causative agent from diseased fish and observed pathological changes both in naturally and artificially infected fish. The causative bacteria was identified as Aeromonas veronii. Subsequently we observed the daily death and pathological symptoms of artificially infected fish with Aeromonas veronii. Symptoms of artificially infected fish were similar to those of naturally infected fish and all fish died within 7 days after infection. Histopathological changes on the naturally infected fish revealed severe congestion and necrotic degeneration in the liver, spleen and kidney. Some bacterial aggregates with inflammatory degeneration were observed in the heart, and congestion and fibrosis in the lamina propria of digestive tube were predominant. In artificially infected fish, skin erosion and necrotic degeneration of muscle tissue around injected region were particularly manifested. Degeneration of hepatocytes in liver and hyalic degeneration around ellipsoids in spleen were partially observed. However, there were no predominant signs in digestive tube in artificially infected fish.

Development of an Excel Program for the Updated Eighth American Joint Committee on Cancer Breast Cancer Staging System (개정된 제8판 American Joint Committee on Cancer 유방암 병기 설정을 위한 Excel 프로그램 개발)

  • Jo, Jaewon;Kim, Eui Tae;Min, Jun Won;Chang, Myung-Chul
    • Journal of Breast Disease
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    • v.6 no.2
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    • pp.35-38
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    • 2018
  • Purpose: The eighth American Joint Committee on Cancer staging system for breast cancer was recently published to more accurately predict the prognosis by adding biomarkers such as estrogen receptors, progesterone receptors, and human epidermal growth factor receptor 2. However, this system is very complicated and difficult to use by clinicians. The authors developed a program to aid in setting up the staging system and confirmed its usefulness by applying it to theoretical combinations and actual clinical data. Methods: The program was developed using the Microsoft Excel Macro. It was used for the anatomic, clinical and pathological prognostic staging of 588 theoretical combinations. The stages were also calculated the stages using 840 patients with breast cancer without carcinoma in situ or distant metastasis who did not undergo preoperative chemotherapy. Results: The anatomic, clinical and pathological prognostic stages were identical in 240 out of 588 theoretical combinations. In the actual patients' data, stages IB and IIIB were more frequent in clinical and pathological prognostic stages than in the anatomic stage. The anatomic stage was similar to the clinical prognostic stage in 58.2% and to the pathological prognostic stage in 61.9% of patients. Oncotype DX changed the pathological prognostic stage in 2.1% of patients. Conclusion: We developed a program for the new American Joint Committee on Cancer staging system that will be useful for clinical prognostic prediction and large survival data analysis.

Artificial Intelligence for Clinical Research in Voice Disease (후두음성 질환에 대한 인공지능 연구)

  • Jungirl, Seok;Tack-Kyun, Kwon
    • Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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    • v.33 no.3
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    • pp.142-155
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    • 2022
  • Diagnosis using voice is non-invasive and can be implemented through various voice recording devices; therefore, it can be used as a screening or diagnostic assistant tool for laryngeal voice disease to help clinicians. The development of artificial intelligence algorithms, such as machine learning, led by the latest deep learning technology, began with a binary classification that distinguishes normal and pathological voices; consequently, it has contributed in improving the accuracy of multi-classification to classify various types of pathological voices. However, no conclusions that can be applied in the clinical field have yet been achieved. Most studies on pathological speech classification using speech have used the continuous short vowel /ah/, which is relatively easier than using continuous or running speech. However, continuous speech has the potential to derive more accurate results as additional information can be obtained from the change in the voice signal over time. In this review, explanations of terms related to artificial intelligence research, and the latest trends in machine learning and deep learning algorithms are reviewed; furthermore, the latest research results and limitations are introduced to provide future directions for researchers.

The Effects of Computer Game Exposure on Musculoskeletal Pathological Symptoms in Adolescents

  • Chae, Woen-Sik;Jung, Jae-Hu
    • Korean Journal of Applied Biomechanics
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    • v.28 no.1
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    • pp.55-60
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    • 2018
  • Objective: This study aimed to analyze the effects of computer game exposure on pathological musculoskeletal symptoms in adolescents. Method: This study included 10 male junior high school students who used computers less than 3 times a week for 1 hr per day. The subjects were asked to play computer games for 4 hr. Magnetic resonance imaging of the hand and wrist, from the distal radius and ulnar head to the distal phalanges, and radiography of the cervical vertebrae were performed before and after playing computer games. For each dependent variable, a paired t-test was performed to identify significant changes before and after a 4-hr active computer game (p<.05). Results: The horizontal diameters of the flexor tendons in the index and middle fingers were significantly reduced after playing computer games. The horizontal diameters of the flexor tendons of other fingers did not show any significant differences, but there was a tendency toward a decrease after playing computer games. There was no significant change in the cervical lordosis angle before and after playing computer games. However, the cervical lordosis angle was relatively decreased. Conclusion: The results of this study showed that computer game exposure had direct and indirect effects on morphological changes of flexor tendons. In addition, playing computer games for long periods of time can have a negative effect on normal functioning of the musculoskeletal system, with the possible development of abnormalities. However, computer game exposure in adolescents cannot be decisively identified as a factor causing pathological symptoms, based on the results of this study alone. Thus, longterm longitudinal studies on the overall musculoskeletal system are necessary.

Role of Autophagy in the Control of Cell Death and Inflammation

  • Lee, Myung-Shik
    • IMMUNE NETWORK
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    • v.9 no.1
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    • pp.8-11
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    • 2009
  • There is mounting evidence that autophagy is involved in diverse physiological and pathological processes that have immense relevance in human development, diseases and aging. Immunity and inflammation are not exceptions. Here, the role of autophagy in the control of immune processes particularly that related to cell death and inflammation is discussed.

Epilepsy and Oxygen Free Radicals (간질과 산소 라디칼)

  • Kim, Won Seop
    • Clinical and Experimental Pediatrics
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    • v.48 no.9
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    • pp.920-923
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    • 2005
  • Epilepsy is a neurological disorder from many molecular and biochemical responses. In the underlying mechanism, free radicals play an important role in seizure initiation and seizure-induced brain damage. Excessive production of oxygen free radicals and other radical species have been implicated in the development of seizures under pathological conditions and linked to seizure-induced neurodegeneration.

Age-Related Physiological Consideration (노화와 관련된 생리학적 변화에 대한 고찰)

  • Park Kyu-Hyun
    • The Journal of Korean Physical Therapy
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    • v.16 no.1
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    • pp.49-59
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    • 2004
  • Chronic and acute musculoskeletal disorders associated with aging are a challenges to the physical therapy. An understanding of the pathophysiology of normal and pathological aging is imperative for making effective clinical decisions. The foundation for understanding the aging musculoskeletal system is understanding the sequence of normal musculoskeletal development, which begins prenatally

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iPSC technology-Powerful hand for disease modeling and therapeutic screen

  • Kim, Changsung
    • BMB Reports
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    • v.48 no.5
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    • pp.256-265
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    • 2015
  • Cardiovascular and neurodegenerative diseases are major health threats in many developed countries. Recently, target tissues derived from human embryonic stem (hES) cells and induced pluripotent stem cells (iPSCs), such as cardiomyocytes (CMs) or neurons, have been actively mobilized for drug screening. Knowledge of drug toxicity and efficacy obtained using stem cell-derived tissues could parallel that obtained from human trials. Furthermore, iPSC disease models could be advantageous in the development of personalized medicine in various parts of disease sectors. To obtain the maximum benefit from iPSCs in disease modeling, researchers are now focusing on aging, maturation, and metabolism to recapitulate the pathological features seen in patients. Compared to pediatric disease modeling, adult-onset disease modeling with iPSCs requires proper maturation for full manifestation of pathological features. Herein, the success of iPSC technology, focusing on patient-specific drug treatment, maturation-based disease modeling, and alternative approaches to compensate for the current limitations of patient iPSC modeling, will be further discussed. [BMB Reports 2015; 48(5): 256-265]