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Page 1 de 38 résultats
Serial observations of colonic carcinogenesis in the rat. Premalignant mucosa binds Ulex europeus agglutinin.
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We evaluated certain histochemical tests for their ability to detect premalignant mucosa in the dimethylhydrazine model of colonic carcinogenesis. Biweekly colonoscopic biopsies of the descending colon were performed for 29 wk in control and dimethylhydrazine-treated rats. Biopsy specimens of the
[The significance of Ulex europaeus agglutinin I lectin binding fibers in various muscular diseases].
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In the present study, we have reported that Ulex europaeus agglutinin I (UEA I) lectin labeled muscle fibers in distal myopathy with rimmed vacuole formation (DMRV). UEA I binding to muscle fibers was also observed in a small number of biopsies with inflammatory myopathy, but not in other diseases,
On the angiostructure of lymph nodes in Hodgkin's disease. An immunohistochemical study using the lectin I of Ulex europaeus as endothelial marker.
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Using an extended indirect immunoperoxidase method and the lectin I of Ulex europaeus ( UEA -I), whose binding sites in lymph nodes are restricted to endothelial cells and erythrocytes, the angioarchitecture of 31 lymph nodes affected by Hodgkin's disease (HD) was demonstrated and analyzed. Compared
Evidence of altered structural and secretory glycoconjugates in the jejunal mucosa of patients with gluten sensitive enteropathy and subtotal villous atrophy.
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The pattern of lectin histochemistry in formalin fixed, paraffin embedded normal jejunal and subtotal villous atrophy specimens from patients with gluten sensitive enteropathy were compared. There was no significant difference in the binding pattern of five lectins (Arachis hypogaea, Canavalia
Cystic adventitial degeneration of the popliteal artery: lectin-histochemical study.
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A case of cystic adventitial degeneration (CAD) of the popliteal artery is presented. Histologically the cyst appeared localised in the adventitia, outside the elastic lamina. A lectin-histochemical study evaluated the following peroxidase conjugated lectins: Peanut agglutinin, Concanavalin A, Ulex
Choriocapillaris Degeneration in Geographic Atrophy.
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Early age-related macular degeneration (AMD) is characterized by degeneration of the choriocapillaris, the vascular supply of retinal photoreceptor cells. We assessed vascular loss during disease progression in the choriocapillaris and larger vessels in the deeper choroid. Human donor maculae from
Lectin binding patterns of uterine glands in mares with chronic endometrial degeneration.
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OBJECTIVE
To evaluate changes of glycoconjugate in uterine glands of endometrial tissues obtained from mares.
METHODS
adult mares.
METHODS
Uterine biopsy samples were collected during the breeding season and analyzed histologically for signs of chronic endometrial degeneration. Stage of the estrous
Subretinal Glial Membranes in Eyes With Geographic Atrophy.
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Müller cells create the external limiting membrane (ELM) by forming junctions with photoreceptor cells. This study evaluated the relationship between focal photoreceptors and RPE loss in geographic atrophy (GA) and Müller cell extension into the subretinal space.
Human donor eyes with no retinal
Distribution and Quantification of Choroidal Macrophages in Human Eyes With Age-Related Macular Degeneration.
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UNASSIGNED
Increasing evidence suggests a role for macrophages in the pathogenesis of age-related macular degeneration (AMD). This study examined choroidal macrophages and their activation in postmortem eyes from subjects with and without AMD.
UNASSIGNED
Choroids were incubated with anti-ionized
Medial neovascularization in abdominal aortic aneurysms: a histopathologic marker of aneurysmal degeneration with pathophysiologic implications.
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OBJECTIVE
The purpose of this study was to characterize the distribution of aortic wall microvessels in normal aorta, atheroocclusive disease (AOD), and abdominal aortic aneurysms (AAA) and to evaluate whether medial neovascularization (MNV) is a reliable histopathologic marker of aneurysmal
Choriocapillaris dropout in early age-related macular degeneration.
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Loss of choriocapillaris (CC) in advanced age-related macular degeneration (AMD) is well documented but changes in early AMD have not been quantified. Postmortem eyes from donors with clinically documented early AMD were examined in choroidal whole mounts to determine the area, pattern, and severity
Evolution of disc degeneration in lumbar spine: a comparative histological study between herniated and postmortem retrieved disc specimens.
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This is a prospective comparative histological study on blood supply between lumbar herniated discs and postmortem retrieved ones. The aim of this study is to observe the evolution of disc degeneration in relation to its blood supply changes. Disc vascularization is present early in life, but the
Histopathological Insights Into Choroidal Vascular Loss in Clinically Documented Cases of Age-Related Macular Degeneration.
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UNASSIGNED
Age-related macular degeneration (AMD) is a multifactorial disease with genetic and environmental factors contributing to risk. Histopathologic changes underlying AMD are not fully understood, particularly the relationship between choriocapillaris (CC) dysfunction and phenotypic
Occlusion of intra-acinar pulmonary arteries in pulmonary hypertensive congenital heart disease.
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Lung biopsy specimens from 10 consecutive cases of congenital heart disease and pulmonary hypertension (2 months-6.5 years) were examined by light and electron microscopy. By light microscopy, 8 cases showed a reduction in number of patent alveolar wall arteries associated with the structural
Remote morphological changes in the white matter after ischaemic stroke.
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Acute phase of stroke is the focus of most experimental and clinical studies on cerebral ischaemia. The scarcity of data on remote changes led us to examine the morphological pictures of brains after ischaemic insults. We paid special attention to the white matter capillaries. We microscopically
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