• 제목/요약/키워드: Vascular Condition

검색결과 232건 처리시간 0.027초

금대봉 산림유전자원보호림의 하층식생 분포양상 (Distributional Patterns of Understory Vegetation at Mt. Geumdae's Protected Area for Forest Genetic Resources)

  • 전승훈;이형숙;임종환
    • 한국산림과학회지
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    • 제98권3호
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    • pp.339-350
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    • 2009
  • 본 연구는 금대봉 산림유전자원보호림의 희귀식물 및 유용 식물자원의 분포실태와 상층식생의 군집구조에 따른 하층식생의 분포양상을 파악하기 위하여 수행되었다. 금대봉 산림유전자원보호림지역내 출현하고 있는 관속식물상은 모두 59과 160속 218종류로 확인되었으며, 산림청 지정 희귀식물은 나도개감채, 연령초, 말나리, 노랑무늬붓꽃, 홀아비바람꽃, 금강제비꽃 등 6종류가 분포하고 있는 것으로 나타났다. 또한, 전 지역에 걸쳐 대규모 군락지 형태의 분포양상을 나타내는 홀아비바람꽃 등 8종류의 초본종과 소규모 패치상 또는 적은 개체수가 흩어져 출현하는 나도잠자리난 등 15종류의 초본종이 유용 식물자원인 것으로 판단되었다. 한편, 금대봉 산림유전자원보호림의 현존식생은 하층식생의 분포양상을 파악하기 위하여 설정한 방형구의 조사자료를 기준으로 유집분석한 결과 상층식생의 군집은 신갈나무 우점 군집, 일본잎갈나무 우점 군집, 그리고 과거 산림벌채와 풍충성 고산지대의 영향으로 인한 초본식생 우점 군집으로 분류되었다. 하층식생의 분포양상은 임분 내 상층 및 중층식생의 군집구조와 어느 정도 연관성을 갖는 것으로 나타났지만, 다른 한편으로 교란에 따른 입지적 특성과 하층식생의 종 조성의 차이 및 경쟁압력으로 인하여 상당한 차이를 보였다. 따라서 산림유전자원인 주요 하층 식생의 보존을 위해서 상층식생의 밀도조절 등으로 인해 야기되는 하층식생의 동태 및 생육환경의 변화를 정확하게 파악 한 후 간벌 등 산림시업처리를 실행하는 것이 바람직할 것으로 판단되었다.

건뇌양(健腦揚)과 단미(單味)들이 Hypoxia-Reoxygenation에 의해 손상받은 Mouse Neuroblastoma 2a Cells에 미치는 영향(影響) (The Effects Kunnuetang and Herbs on Mouse Neuroblastoma 2a Cells Damaged by Hypoxia-reoxygenation)

  • 염창섭;김종우;강철훈;황의완
    • 동의신경정신과학회지
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    • 제16권2호
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    • pp.73-88
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    • 2005
  • Object : This study was designed to asses the effect of Kunnuetang and herbs on Mouse neuroblastoma 2a cells damaged by hypoxia-reoxygenation. Method : Mouse neuroblastoma 2a (N2a) cells were measured by MTT assay and LDH assay after 48h hypoxia and 6h reoxygenation. Mouse neuroblastoma 2a (N2a) cells were treated by Kunnuetang, Duchang and Daejo. Result : 1. Kunnuetang, was effective on LDH assay of hypoxia and reoxygenation. 2. Duchang and Daejo were generally effective on LDH assay of hypoxia and reoxygenation. 3. In MTT assay of hypoxia Kunnuetang was not effective. Duchung and Daejo were not generally effective on MTT assay, but in certain condition Herbs were effective. 4. In MTT assay of reoxygenation Kunnuetang and Daejo were not effective. But Duchung was effective in certain condition. Conclusion : The results suggest that Kunnuetang, Duchang and Daejo may have protective effect on vascular dementia and ad patient.

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유방의 거짓혈관종모양 버팀질증식의 세포소견 - 1예 보고 - (Cytologic Features of Pseudoangiomatous Stromal Hyperplasia of the Breast - A Case Report with Review of Literature -)

  • 이진숙;신동훈;박도윤;최경운;이창훈;설미영;김지연
    • 대한세포병리학회지
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    • 제16권1호
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    • pp.25-30
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    • 2005
  • Pseudoangiomatous stromal hyperplasia (PASH) was initially described by Vuitch et al. as a benign breast lesion, consisting of mammary stromal proliferations which simulate vascular lesions, and which might be mistaken for a low-grade angiosarcoma. This condition occasionally presents as a palpable mass in postmenopausal women, but is more frequently encountered as an incidental component in premenopausal women. Clinical, radiological, and fine-needle aspiration (FNA) findings associated with this condition can mimic those observed in conjunction with a phyllodes tumor or a fibroadenoma. The cytological features of PASH are generally nonspecific, and its diagnosis by FNA cytology is fairly difficult. In this study, we report a case on PASH, manifesting as a palpable mass.

Aberrant Hypoplastic Lung Tissue 에서 발생한 Bronchogenic Cyst (Bronchogenic Cyst in Aberrant Hypoplastic Lung Tissue)

  • 김종원;조광현;김의윤
    • Journal of Chest Surgery
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    • 제8권1호
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    • pp.13-18
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    • 1975
  • Developmental pulmonary abnormalities are known as rare condition. diagnosis was made at autopsy in the early cases reported, however, as diagnostic aids such as X-ray, bronchography, bronchoscopy and exploratory thoracotomy have come into use, the condition is being discovered more often recently in living persons, and it appears to occur with sufficient frequency to merit consideration in the differential diagnosis of certain chest conditions. According to Schneider and Boyden there are three main types of this abnormality: [1] Agenesis, in which there is complete absence of one or both lungs; there is no trace of bronchial or vascular supply or of parenchymal tissue. [2] Aplasia, in which there is suppression of all but a rudimentary bronchus which ends in a blind pouch; there are no vessels or parenchyma. [3] Hypoplasia, in which the bronchus is fully formed but is reduced in size and ends in a _ flesh structure which usually lies within the mediastinum. Rudimentary pulmonary parenchyma may be present around the bronchial stump and often is the site of cystic malformation. We experienced one case of hypoplastic lung with cystic malformation which was originated from a small aberrant rudimentary bronchus, and the rudimentary bronchus was branched from the right side of tracheal end. The diagnosis was finally confirmed by the histopathological finding. Now, we report this case with a brief review of literatures.

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Radiographic manifestations of Mönckeberg arteriosclerosis in the head and neck region

  • Tahmasbi-Arashlow, Mehrnaz;Barghan, Sevin;Kashtwari, Deeba;Nair, Madhu K.
    • Imaging Science in Dentistry
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    • 제46권1호
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    • pp.53-56
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    • 2016
  • $M{\ddot{o}}nckeberg$ sclerosis is a disease of unknown etiology, characterized by dystrophic calcification within the arterial tunica media of the lower extremities leading to reduced arterial compliance. Medial calcinosis does not obstruct the lumina of the arteries, and therefore does not lead to symptoms or signs of limb or organ ischemia. $M{\ddot{o}}nckeberg$ sclerosis most commonly occurs in aged and diabetic individuals and in patients on dialysis. $M{\ddot{o}}nckeberg$ arteriosclerosis is frequently observed in the visceral arteries, and it can occur in the head and neck region as well. This report describes a remarkable case of $M{\ddot{o}}nckeberg$ arteriosclerosis in the head and neck region as detected on dental imaging studies. To the best of our knowledge, this is the first case that has been reported in which this condition presented in the facial vasculature. The aim of this report was to define the radiographic characteristics of $M{\ddot{o}}nckeberg$ arteriosclerosis in an effort to assist health care providers in diagnosing and managing this condition.

척수경색증으로 인한 하반신불수(下半身不隨) 환자에 대한 치험례 (A Case study about Paraplegia diagnosed as Spinal cord infarction)

  • 배효상;한경석;최재영;박성식;최정락
    • 사상체질의학회지
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    • 제14권2호
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    • pp.160-168
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    • 2002
  • Spinal cord infarction in vascular impairment of spinal cord is rare in the world. and besides, because spinal cord has small cross-sectional area and almost all tract of sensory system and motor system pass away, spinal cord disease is one of the terrible diseases, that leaves usually permanent and severe neurological sequela. The case is about a patient who is 57 years old woman. Both of her legs were suddenly paralyzed and her case was diagnosed as spinal cord infarction in medical center. In our hospital, we focussed on her basic physiological condition-defecation, urination, dormitio, diet, etc. In the case of this patient, power and sense of both legs with physiolocal condition improved remarkably through Sasang Constitutional Medicine with rehabilitative therapy.

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The Osteoporotic Condition as a Predictive Factor for Hemorrhagic Transformation in Acute Cardioembolic Stroke

  • Won, Yu Deok;Kim, Jae-Min;Ryu, Je-Il;Koh, Seong-Ho;Han, Myung-Hoon;Cheong, Jin-Hwan
    • Journal of Korean Neurosurgical Society
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    • 제64권5호
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    • pp.763-775
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    • 2021
  • Objective : Hemorrhagic transformation (HT) can be occurred after acute cerebral infarction. HT can worse symptoms in severe cases and adversely affect long-term prognosis. As bone and vascular smooth muscle are composed of type 1 collagen, we aimed to identify a potential relationship between bone mineral density (BMD) and HT after acute cardioembolic stroke. Methods : As an indicator of BMD, we used mean frontal skull Hounsfield unit (HU) values on brain computed tomography (CT). Multivariative hazard ratios were calculated using Cox regression analysis to identify whether the osteoporotic condition was an independent predictor of HT after acute cardioembolic stroke. Results : This 11-year analysis enrolled 506 patients who diagnosed as acute cardioembolic infarction. The first tertile of skull HU value was an independent predictor of HT development compared to the third tertile (hazard ratio, 2.12; 95% confidence interval, 1.13-3.98; p=0.020). We observed no interactions between age and skull HU with respect to HT statistically. Conclusion : The results of this study revealed an association between osteoporotic conditions and HT development after acute cardioembolic stroke. A convenient method to measure the cancellous bone HU value of the frontal skull using brain CT images may be useful for predicting HT in patients with acute cerebral infarction.

Myelomeningocele defect reconstruction with keystone flaps: vascular rationale for the design and operative technique

  • Kushida-Contreras, Beatriz Hatsue;Gaxiola-Garcia, Miguel Angel
    • Archives of Plastic Surgery
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    • 제48권3호
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    • pp.254-260
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    • 2021
  • Background Myelomeningocele is a frequently seen condition at tertiary care hospitals. Its treatment involves a variety of plastic reconstructive techniques. Herein, we present a series of myelomeningocele patients treated using keystone flaps. Methods We gathered information regarding soft tissue reconstruction and the use of bilateral keystone flaps to treat myelomeningocele patients. We obtained data from clinical records and recorded the demographic characteristics of mothers and children with the condition. The size, level of defect, and complications detected during the follow-up were analyzed. Results A series of seven patients who underwent bilateral keystone flaps for myelomeningocele closure was analyzed. There were no cases of midline or major dehiscence, flap loss, necrosis, surgical site infections, or cerebrospinal fluid leakage. No revision procedures were performed. Minor complications included one case with minimal seroma and three cases with areas of peripheral dehiscence that healed easily using conventional measures. Conclusions The use of keystone flaps is an adequate option for closure of dorsal midline soft tissue defects related to myelomeningocele. This technique offers predictable results with an acceptable spectrum of complications. Robust blood flow can be predicted based upon anatomical knowledge.

Acute Hemorrhagic Edema of Infancy Associated With Coronavirus Disease 2019

  • Jong Ki Jung;Young June Choe; Hwa Jung Ryu;Won-Hee Seo
    • Pediatric Infection and Vaccine
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    • 제30권3호
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    • pp.188-192
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    • 2023
  • 영아기 급성 출혈성 부종(acute hemorrhagic edema of infancy, AHEI)은 주로 영아에서 발생하는 드문 혈관염으로 호흡기 바이러스 감염과 연관되어 발생할 수 있다. 저자들은 coronavirus disease 2019 (COVID-19) 감염 후 발생한 AHEI 단일 사례를 보고한다. 재태주수 38주에 3.5kg으로 출생한 건강했던 생후 47일된 환아는 동반증상 없는 발열을 주소로 내원하였고 COVID-19 reverse transcription polymerase chain reaction 검사결과 양성이 확인되었다. 입원 이틀째부터 손과 발에 비창백성(non-blanching) 홍반성 반점(macule)과 반(patch)이 발생했고 압통을 동반한 부종이 관찰되었다. 발열은 호전되었고 전신 컨디션과 경구 섭취는 정상적인 모습을 보였다. 정맥 덱사메타손 투약 후 발진과 부종은 호전되었다. AHEI를 적시에 진단하는 것은 불필요한 검사나 치료를 피하고 드물지만 발생 가능한 심각한 합병증을 신속하게 발견하는데 중요하다.

혈액투석 환자들이 경험한 건강문제 분석 (An Analysis of Health Problems Experienced by the Clients Receiving Hemodialysis)

  • 신미자
    • 대한간호학회지
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    • 제26권4호
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    • pp.903-916
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    • 1996
  • The purpose of this study was to discover practical health problems which hemodialysis clients experienced so as to present basic data for development of a health assessment tool. The research subjects were 70 clients receiving hemodialysis in Seoul and Inchon from Mar. 1996 to Sep. 1996. Data were collected by researcher's informal indepth interview and nurses' open ended question. Content analysis was applied to collect similar contents and common experiences in order to derivate concepts and categories for better understanding of hemodialysis clients' experiences. As a result, 9 categories derivated to identify the health problems of clients receiving hemodialysis were as follows : 1) They experienced 'the decreased digestive function' which contained the changed appetite, nausea, vomiting, constipation and diarrhea. 2) They experienced 'the decreased respiratory and circulatory function' which contained dyspnea, changed blood pressure, tingling sensation and the fear of aggrevated vascular condition. 3) They experienced 'the aggrevated oral condition' which contained dry mouth and destruction of teeth and their soft tissue. 4) They experienced 'the decreased sensory function' which contained visual disturbances, sensation difficulty, and hearing loss. 5) They experienced 'the aggrevated skin condition' which contained dark brown skin color, dry skin (and hyperpigmentatic freckle, seborrheric keratosis, scale), itching sense, and alopethia. 6) They experienced 'the decreased urinary reproductive function' which contained anuria or oliguria, dysmenorrhea, sterility and decreased libido. 7) They experienced 'the restricted activity' which contained decreased activity, muscle cramp and stiffness of joint. 8) They experienced 'the changed mental status' which contained memory disturbance, decreased cognition, disorientation, neurosis and psychosis. 9) They experienced 'the aggrevated general condition' which contained kyphosis, weight loss, fatigue, sleep disturbance, bleeding tendency, inflammation, generalized edema and foul oder of uremia.

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