• 제목/요약/키워드: pathological findings

검색결과 596건 처리시간 0.029초

인천 지역 사육견의 심장사상충 감염률 및 병리조직학적 연구 (Studies on infection rate and histopathological findings of canine heartworms in Inchon city)

  • 이성모;황현순;김종훈
    • 한국동물위생학회지
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    • 제22권1호
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    • pp.25-35
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    • 1999
  • The prevalence of canine heartworm(Dirofilaria immitis) infection in 150 mixed-breed dogs(male : 54, female : 96) from February to December 1997 was investigated by using antigen test kit(ICT $GOLD^{TM}$ HW, Synbiotics, USA) based on immunochromatographic assay in Inchon city. Also, gross and histopathological findings of an antigen positive dog were carried out. The results were summarized as follows ; 1. Four dogs were positive from 150 tested dogs(2.7%). They were all more than 2 years old and infection rates in male and outdoor dogs was higher than those in female and indoor, respectively. Species of infected dogs were Pug(2) , German Sheperd(1) and Great-dane (1). 2. Regional infection rates were closely related with housing system in the city. 3. Pathological findings of antigen-positive dog was excessive enlargement, congestion and hemorrhage of lung and D immitis in heart and histologically hemosiderin, hypertrophy of pulmonary alveoli wall and irregular hypertrophy of pulmonary artery inner wall. Microfilaria was observed in pulmonary artery and arteriole, ventricle and splenic artery.

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Lack of Any Association of GST Genetic Polymorphisms with Susceptibility to Ovarian Cancer - a Meta-analysis

  • Han, Li-Yuan;Liu, Kui;Lin, Xia-Lu;Zou, Bao-Bo;Zhao, Jin-Shun
    • Asian Pacific Journal of Cancer Prevention
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    • 제15권15호
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    • pp.6131-6136
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    • 2014
  • Objective: Epidemiology studies have reported conflicting results between glutathione S-transferase Mu-1 (GSTM1), glutathione S-transferase theta-1 (GSTT1) and glutathione S-transferase pi-1 (GSTP1) and ovarian cancer (OC) susceptibility. In this study, an updated meta-analysis was applied to determine whether the deletion of GSTM1, GSTT1 and GSTP1 has an influence on OC susceptibility. Methods: A published literature search was performed through PubMed, Embase, Cochrane Library, and Science Citation Index Expanded database for articles published in English. Pooled odds ratios (ORs) and 95% confidence intervals (95%CIs) were calculated using random or fixed effects models. Heterogeneity between studies was assessed using the Cochrane Q test and $I^2$ statistics. Sub-group analysis was conducted to explore the sources of heterogeneity. Sensitivity analysis was employed to evaluate the respective influence of each study on the overall estimate. Results: In total, 10 published studies were included in the final analysis. The combined analysis revealed that there was no significant association between GSTM1 null genotype and OC risk (OR=1.01, 95%CI: 0.91-1.12). Additionally, there was no significant association between GSTT1 genetic polymorphisms and OC risk (OR=0.98, 95% CI: 0.85-1.13). Similalry, no significant associations were found concerning the GSTP1 rs1695 locus and OC risk. Meanwhile, subgroup analysis did not show a significant increase in eligible studies with low heterogeneity. However, sensitivity analysis, publication bias and cumulative analysis demonstrated the reliability and stability of the current meta-analysis. Conclusions: These findings suggest that GSTs genetic polymorphisms may not contribute to OC susceptibility. Large epidemiological studies with the combination of GSTM1 null, GSTT1 null and GSTP1 Ile105Val polymorphisms and more specific histological subtypes of OC are needed to prove our findings.

초유로부터 분리.정제된 IGFs의 안전성 평가에 관한 연구 (Safety Evaluation of IGEs Separated and Refined from Colostrum)

  • 조양희;이수원;정명섭;백승화;제갈승주;박강용
    • 한국축산식품학회지
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    • 제23권2호
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    • pp.137-144
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    • 2003
  • 본 연구에서는 IGFs를 다양한 기능성 유제품에 적용하기 전에 먼저 상업용 IGFs 및 초유로부터 분리.정제된 IGFs의 안전성을 평가하여 새로운 기능성 소재로서의 IGFs의 가능성을 검토해 보고자 하였다. 이를 위하여 독성평가에서 기본적으로 수행되고 있는 단회투여독성시험과 반복투여독성시험을 실시하였다. 단회투여독성시험에서는 R&D Systems사의 Recombinant Human IGF- I 을 시험물질로 하고 생후 4주된 Sprague-Dawley계(♂) 흰쥐(rat)를 실험동물로 하여 개체당 0, 10, 20, 50 $\mu\textrm{g}$씩 투여하는 시험군을 설정한 후, 꼬리정 꼬리정맥에 주사하여 20일간 관찰하면서 체중변화, 식이섭취변화를 측정하고 최종적으로 부검하여 육안검사 및 간장, 신장, 비장에 대한 병리조직검사를 실시한 결과, 명확한 이상소견이 나타나지 않아 모든 시험군에서 급성독성이 확인되지 않았다. 반복투여독성시험에서는 초유로부터 분리.정제된 IGF- I 을 시험물질로 하고 생후 4주된 Sprague-Dawley계(♂) 흰쥐(rat)를 실험동물로 하여 개체당 0, 5, 10, 15 $\mu\textrm{g}$씩 투여하는 시험군을 설정한 후, 14일간 반복적으로 강제경구투여하면서 임상증상을 관찰하면서 체중변화, 식이섭취변화를 측정하였고 최종적으로 부검하여 육안검사 및 간장, 신장, 비장에 대한 병리조직검사를 실시한 결과, 명확한 이상소견이 나타나지 않아 모든 투여농도에서 반복투여독성시험을 비롯한 기본적인 독성평가에 있어서 초유 내 IGF-I의 안전성에는 명확한 이상소견이 없는 것으로 판단되었다.

식도 평활근종;2례 보고 (Leiomyoma of The Esophagus - Report of two cases -)

  • 임승현
    • Journal of Chest Surgery
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    • 제25권9호
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    • pp.943-947
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    • 1992
  • Intramural leiomyoma is the most common benign esophageal tumor, but it is rare compared with carcinoma. Although the most common symptom is dysphagia, this tumor may not cause symptoms before attaining large size. Radiographic and endoscopic findings allow an accurate diagnosis to be made before operation in most patients. The treatment of choice is enucleation without mucosal encroachment. Recently, we experienced two cases of esophageal leiomyoma on the mid portion of esophagus and enucleation of tumors were done by blunt dissection with caution. In one case, postoperative chylothorax was complicated, but cured with conservative treatment. The tissue diagnosis was confirmed with pathological finding.

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한우(韓牛)의 급성폐사성질병(急性斃死性疾病)의 병인학적연구(病因學的硏究) (Etiologic Studies on Acute Fatal Disease of Korean Native Cattle)

  • 이차수
    • 대한수의학회지
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    • 제17권2호
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    • pp.27-40
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    • 1977
  • The purpose of this paper is to know the cause of a rapidly fatal disease of Korean native cattle commonly occurred in the farm-houses in Gyeonsangbugdo district and the rest of the country. The author diagnosed this acute fatal disease of Korean native cattle as enterotoxemia due to Clostridium perfringens based on the clinical, epidemiological and pathological findings.

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Neurodegeneration with Brain Iron Accumulation

  • Lee, Jae-Hyeok
    • Journal of Interdisciplinary Genomics
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    • 제2권1호
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    • pp.1-4
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    • 2020
  • Recent advances in magnetic resonance imaging and identification of causative genes led to the recognition of a new group of disorders named neurodegeneration with brain iron accumulation (NBIA). NBIA is a group of inherited disorders characterized by abnormal iron deposition in the brain, usually in the basal ganglia. The disorder shares the clinical features of movement disorders and is accompanied by varying degrees of neuropsychiatric abnormalities. In this review, the causative genes, clinical presentations, neuroimaging features, and pathological findings are summarized.

수종치아수복재료의 조직반응에 관한 연구

  • 장익태
    • 대한치과의사협회지
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    • 제12권8호
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    • pp.619-622
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    • 1974
  • The purpose of this study was to investigate biological tissue reactions to various restorative dental materials. An experimental pellects was implanted into subdermal tissue in dog subjects observing 1 week, 3 weeks, and 8 weeks respectively. The obtained histo-pathological findings were as follows: 1. Experimental pellets such as gold, ticonium and amalgam alloy are considered biologically acceptable. 2. Experimental results in 1 week dog showed acute inflammatory changes. 3. Experimental results in 8 week dog showed fibrotic and chronic inflammatory changes. 4. Active irritans such as silicate cements revealed acute inflammatory changes in all observed period. 5. Biological tissue to irritants observed.

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Control of Platelet Rolling and Adhesion

  • Moskowitz, Samuel E.
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2002년도 ICCAS
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    • pp.77.1-77
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    • 2002
  • Platelets arrest bleeding and repair damaged blood vessels. The purpose of this paper is to formulate a mathematical model for the control of platelet adhesion within the vasculature consistent with experimental findings, particularly those of Frenette, Ruggeri , Savage, Yuan, Lawrence and Springer. In addition to providing some, albeit rudimentary, insight into the behavior of platelets, a numerical simulation of this theoretical model may be useful in a systematic study of pathological cases. Glycoprotein receptor complex (GPIb/V/IX), found on the platelet surface membrane, binds to the adhesive protein and ligand von Willebrand factor (vWf), located within the sub-endothelium. The binding...

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미세알부민뇨 (Microalbuminuria)

  • 남궁미경
    • Childhood Kidney Diseases
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    • 제11권1호
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    • pp.1-8
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    • 2007
  • Many children with microscopic hematuria have been found on school screening examinations. There are not, however, nation-wide criteria for us(specifically, pediatric nephrologists) how to take care of them. Recently, quite a few research papers concerning microalbuminuria with microscopic hematuria, which can predict the renal pathological findings, are published. Here I have reviewed articles on microalbuminuria which gives us the information how to manage microscopic hematuria.

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Studies for the Pathogenesis and Pathogenicity for the Porcine Circovirus Type 2 Korean Isolates in Weaned Pigs

  • Roh, In-soon;Lee, Ji-youn;Lee, Kyoung-woo;Kim, Jae-hoon;Jean, Young-hwa
    • 한국수의병리학회:학술대회논문집
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    • 한국수의병리학회 2003년도 추계학술대회초록집
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    • pp.49-49
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    • 2003
  • PMWS is characterised by weight loss and dyspnea combined with pathological findings of interstitial pneumonia and generalized enlarged lymph nodes. Typical histological lesions include multifocal granulomatous pneumonia, and lymphocyte depletion and multinucleated giant cell formation in lymph nodes[1,2]. (omitted)

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