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Morphologiai es igazsagugyi orvosi szemle最新文献

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[Ultrastructural analysis of amyloid deposits in pleomorphic adenoma of the salivary glands by topo-optical studies]. [唾液腺多形性腺瘤中淀粉样蛋白沉积的超微结构分析]。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-07-01
A Horváth, J Deák
{"title":"[Ultrastructural analysis of amyloid deposits in pleomorphic adenoma of the salivary glands by topo-optical studies].","authors":"A Horváth,&nbsp;J Deák","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>It is well established that the stroma of some tumours contains amyloid. Authors have studied in pleomorphic tumours the occurrence of amyloid. Out of 40 salivary gland tumours 5 contained amyloid in their stroma between tumour-cell cords. Amyloid of salivary gland tumours had a resistant structure. The possible pathomechanisms of amyloid deposition are discussed.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 3","pages":"186-9"},"PeriodicalIF":0.0,"publicationDate":"1989-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13695367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Mast cells in ulcerative colitis]. 溃疡性结肠炎中的肥大细胞。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-07-01
M Balázs, G Illyés, G Vadász
{"title":"[Mast cells in ulcerative colitis].","authors":"M Balázs,&nbsp;G Illyés,&nbsp;G Vadász","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Authors have studied the changes in number and electronmicroscopic appearances of mast cells in the mucosa of large intestine of patients suffering from colitis ulcerosa either in its active or remission period. Counting of cells was performed in osmium-fixed, semithin, Giemsa-stained sections to avoid variations in staining due to formaldehyde. In the active stage of the disease the increase in number of mast cells was significant. Their pronounced degranulation was evident in both semi- and ultrathin preparations. Two forms of degranulation were distinguished: 1. by the release of granules; 2. by the extrusion of whole cytoplasmic areas. The latter indicated fast degranulation, in accordance with observations in animal experiments. Mast cells became closely related to the capillaries, Schwann-cells and nerve fibres of the lamina propria, with myofibroblasts and collagenous fibres. At some places they were found between the epithelial cells of Lieberkühn's crypts. It is assumed that this close topographical correlation represents also functional connections. The present morphological findings corroborate current hypotheses and suggest that the increase in number of mast cells in the active stage of coliitis ulcerosa mediates an hyperergic reaction.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 3","pages":"161-9"},"PeriodicalIF":0.0,"publicationDate":"1989-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13937131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Peanut agglutinin binding of lymph node follicles]. [花生凝集素结合淋巴结滤泡]。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-07-01
G Csanaky, J Fischer
{"title":"[Peanut agglutinin binding of lymph node follicles].","authors":"G Csanaky,&nbsp;J Fischer","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>The peanut-agglutinin binding of lymph node follicles was studied in frozen and paraffin sections of human tonsils. In a substantial fraction (10-25%) of follicles focal zones of high PNA receptor expression were encountered which were more readily recognizable in paraffin sections and corresponded to the centrocytous, \"light\" zone of the follicle. Results suggest that divergent lectin binding of follicles reflects their different functional states.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 3","pages":"222-6"},"PeriodicalIF":0.0,"publicationDate":"1989-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13622717","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Experimental study of the direct effect of CO2 laser beam on the oral mucosa]. CO2激光束对口腔黏膜直接作用的实验研究。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-07-01
L Gáspár, J Tóth
{"title":"[Experimental study of the direct effect of CO2 laser beam on the oral mucosa].","authors":"L Gáspár,&nbsp;J Tóth","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Interferences were made with a high-energy carbondioxide laser on the tongue and buccal mucosa of albino rats. Tissue destructions -- and cryodestruction reported in the literature -- were comparatively evaluated. At the edge of the laser cut a 30 micron carbonization zone occurred, beyond this a 150 micron necrotic zone and an 800 micron transition zone were observed. These were irreversibly damaged territories with coagulated blood vessels. The surrounding was hyperaemic and edematous. The application of higher energy brings about less tissue damage with narrower zones. A similar but more widely damaged destruction occurs after electrocauterization. Here, irreversibly damaged areas are 5 to 8-times wider than those found with laser. The largest damaged area was found after cryodestruction. It is thus concluded that the use of a high-energy carbondioxide laser results in the smallest irreversibly damaged tissue area. This explains the clinical advantages of the laser knife: coagulation during cutting, reduced postoperative pain and edema, small scar and good functional and aesthetic restitution.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 3","pages":"207-12"},"PeriodicalIF":0.0,"publicationDate":"1989-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13652273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Changes in the tension receptors of skeletal muscles after tenotomy and immobilization]. 骨骼肌张力感受器在肌腱切断和固定后的变化。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-07-01
L Józsa, M Kvist, P Kannus, M Järvinen
{"title":"[Changes in the tension receptors of skeletal muscles after tenotomy and immobilization].","authors":"L Józsa,&nbsp;M Kvist,&nbsp;P Kannus,&nbsp;M Järvinen","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Morphometric and histochemical changes of muscle spindles and tendon spindles of Golgi were studied in the soleus and gastrocnemius muscles of tenotomized and immobilized rats. The number of intrafusal fibres and mechanoreceptors did not change after either tenotomy or immobilization. The diameter of intrafusal fibres decreased by 14 to 40% three weeks after tenotomy or immobilization. The histochemical characteristics of muscle fibres were also changed. The capsule of mechanoreceptors was found thickened, the intracapsular space disappeared. The capsule was tensely attached to the mechanoreceptors.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 3","pages":"179-85"},"PeriodicalIF":0.0,"publicationDate":"1989-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13937133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Morphologic and biochemical changes in acute experimental interstitial pancreatitis]. [急性实验性间质性胰腺炎的形态学和生化变化]。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-04-01
Z Lászik, Z Berger, A Pap
{"title":"[Morphologic and biochemical changes in acute experimental interstitial pancreatitis].","authors":"Z Lászik,&nbsp;Z Berger,&nbsp;A Pap","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Repeated subcutaneous injections of cholecystokinin-octapeptide has brought about an acute interstitial pancreatitis in rats. The aim of the experiment was the study of histological and biochemical alterations with special regard to regeneration phenomena. The treatment was carried out for 1 (group 1), 3,5 and 7 (group 2) days. Morphological alterations were more pronounced in group 2 than in group 1, but the pathological process was principally similar in both groups. Lowest values of pancreatic weight, protein and DNA content were attained in both groups at day 5. After this, protein and DNA started to increase. Hyperstimulation with CCK-OP on day 5 did not increase the degree of pancreas damage, nor did it prevent morphological and functional regeneration. The reason of this may be the decreased CCK-OP sensitivity of pancreatic acinar cells and/or the increased CCK-OP tolerance of newly formed acinar cells.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 2","pages":"89-97"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13886747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Thoughts on the need for postgraduate medical workshops]. [关于研究生医学讲习班必要性的思考]。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-04-01
Z Gábor
{"title":"[Thoughts on the need for postgraduate medical workshops].","authors":"Z Gábor","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 2","pages":"151-2"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13886745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Immunohistochemical, immunocytochemical and electron microscope studies in experimental E. coli pyelonephritis]. 实验性大肠杆菌肾盂肾炎的免疫组织化学、免疫细胞化学和电镜研究。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-04-01
B Iványi, T Krenács
{"title":"[Immunohistochemical, immunocytochemical and electron microscope studies in experimental E. coli pyelonephritis].","authors":"B Iványi,&nbsp;T Krenács","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Authors have studied in apostematous pyelonephritis induced by the ligation of the ureter and the intravenous injection of E coli bacteria the localization and elimination with time of the pathogen. The pathogen was demonstrated by light and electron microscopy, its parietel antigen was localized with the light microscopic peroxidase antiperoxidase and post-embedding electron microscopic immunogold techniques. Two days after inoculation the suppurative inflammation of tubulo-interstitial foci was observed; in the capillaries, interstitium, and tubuli, free and phagocyted bacteria were encountered. In the interstitium, in the proximal tubuli and in the capillary space of some glomeruli bacterial groups were observed. Intracapillary bacteria were attached by their outer wall to the surface of endothelial cells. In the tubuli this adherence occurred with pili or with the outer layer of bacterial wall. From the seventh day after inoculation macrophages containing PAS-positive globuli appeared in the interstitium. Under the electron microscope these globuli proved to be features composed of myelin figures of phagolysosomal origin. Globuli and the myelin figures possessed an E. coli antigenicity. Thirteen weeks after inoculation E. coli antigen positivity was found in the cytoplasm of inflammatory cells in the tubular walls and in the suppurative cylinders, The organism was apparently unable to eliminate the materials derived from the pathogenic microorganisms.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 2","pages":"98-105"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13807433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Granulomatous hepatitis in cytomegalovirus infection]. 巨细胞病毒感染并发肉芽肿性肝炎。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-04-01
Z Szabö, G Prinz
{"title":"[Granulomatous hepatitis in cytomegalovirus infection].","authors":"Z Szabö,&nbsp;G Prinz","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>Authors report the serologically verified CMV hepatitis of a 35-year old man whose hepatic alteration appeared in the form of a granulomatous hepatitis. On this account the characteristics of granulomatous hepatitis cases published so far in the literature are surveyed.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 2","pages":"145-8"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13689638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
[Characterization of striated muscle fiber types by Ca2+-ATPase and myoglobin immunohistochemistry of the sarcoplasmic reticulum]. [肌浆网Ca2+- atp酶和肌红蛋白免疫组化表征横纹肌纤维类型]。
Morphologiai es igazsagugyi orvosi szemle Pub Date : 1989-04-01
T Krenács, E Molnár, E Dobó, L Dux
{"title":"[Characterization of striated muscle fiber types by Ca2+-ATPase and myoglobin immunohistochemistry of the sarcoplasmic reticulum].","authors":"T Krenács,&nbsp;E Molnár,&nbsp;E Dobó,&nbsp;L Dux","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>By the immunohistochemical demonstration of SR calcium ATPase and myoglobin a fibre classification method was developed. Fast fibres showed intense, while slow fibres weak SR calcium ATPase reactivity. Immunohistochemical reaction of myoglobin characterized the oxidative metabolic state of fibres similar to the succinate dehydrogenase (SDH) reaction. By means of SR calcium ATPase and myoglobin immunohistochemistry fibres were classified as slow oxidative (SO), fast oxidative glycolytic (FOG) and fast glycolytic (Fg) groups. The SR calcium ATPase activity of the different fibres varied in the FG greater than FOG greater than SO order, while myoglobin immunoreactivity in the FOG greater than SO greater than FG order. Both proteins studied preserved their antigenicities in Bouin's fixative or in formol-acetate and paraffin embedding. The light microscopic immunogold-silver method was found suitable also for electron microscopy. The silver intensification of small particle-size (5 nm) gold conjugate results in a reaction with the joint advantages of high sensitivity and optimal visibility. The described immunohistochemical method proved to be suitable for the retrospective differentiation of human biopsy materials.</p>","PeriodicalId":19047,"journal":{"name":"Morphologiai es igazsagugyi orvosi szemle","volume":"29 2","pages":"106-18"},"PeriodicalIF":0.0,"publicationDate":"1989-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13671472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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