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  • 1
    Digitale Medien
    Digitale Medien
    238 Main Street, Cambridge, Massachusetts 02142, USA : Blackwell Scientific Publications
    International journal of gynecological cancer 3 (1993), S. 0 
    ISSN: 1525-1438
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: Four hundred and ten patients with epithelial ovarian cancer FIGO stages I and II were registered by a Danish multicenter study group (The Danish Ovarian Cancer Group - DACOVA). Two-thirds were stage I, the most frequent substage was Iai which was the classification in 27%. Five-year survival for stage I was 72%, and 38% for stage II. Multivariate analysis showed that age, stage, residual tumor, histologic grade and adjuvant treatment had prognostic value. For stage, three significantly different groups could be identified: (1) stage Iai, (2) stage Iaii-Ic, and (3) stage II. Histologic grade showed a significant survival difference between all grades. Adjuvant treatment had a moderate but significant impact on survival. Patients in stage Iai had a good survival with surgery alone and will probably not benefit from adjuvant therapy. Adjuvant treatment improved survival for the remaining patients in stages I and II without residual tumor. A difference between treatment modalities was not observed. However, the data need to be confirmed by a randomized trial. Patients in stage II with residual tumor should be treated as stage III.
    Materialart: Digitale Medien
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  • 2
    Digitale Medien
    Digitale Medien
    Suite 500, 5th Floor, 238 Main Street, Cambridge, Massachusetts, 02142, USA : Blackwell Science Inc.
    International journal of gynecological cancer 6 (1996), S. 0 
    ISSN: 1525-1438
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: In an attempt to create uniform nationwide guidelines for the management of all stages of endometrial carcinoma, and to limit the use of adjuvant radiation therapy in stage I disease to high-risk patients only, a protocol was developed by the Danish Endometrial Cancer group (DEMCA). From September 1986 through August 1988, 1214 women in Denmark with newly diagnosed carcinoma of the endometrium have been treated according to this protocol. This figure represents all endometrial carcinomas diagnosed in Denmark during this 2-year period. The primary treatment was total abdominal hysterectomy and bilateral salpingo-oophorectomy and no preoperative radiation therapy was delivered. In 1039 cases no macroscopic residual tumor and/or microscopic tumor tissue in the resection margins was found following surgery. Based on surgery and histopathology, these patients were classified as: P-stage I low-risk (grade 1 & 2 and 〈inlineGraphic alt="leqslant R: less-than-or-eq, slant" extraInfo="nonStandardEntity" href="urn:x-wiley:1048891X:IJG06010038:les" location="les.gif"/〉 50% myometrial invasion), P-stage I high-risk (grade 1 & 2 and〉 50% myometrial invasion, and grade 3), P-stage II and P-stage III (Group 1). Distribution was as follows: P-I low-risk 641 patients, P-I high-risk 235, P-II 105 and P-III (Group 1) 58 patients. No postoperative radiation therapy was given to P-I low-risk cases. P-I high-risk, P-II, and P-III (Group 1) cases received external radiation therapy. Recurrence rate at 68–92 months follow-up was 45/641 (7%) in P-I low-risk, 36/235 (15%) in P-I high-risk, 30/105 (29%) in P-II, and 27/58 (47%) in P-III (Group 1) cases. Fifteen of 17 vaginal recurrences in P-I low-risk cases were salvaged (mean observation time 61 months).
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    238 Main Street, Cambridge, Massachusetts 02142, USA : Blackwell Scientific Publications
    International journal of gynecological cancer 3 (1993), S. 0 
    ISSN: 1525-1438
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: From September 1981 to September 1986, 417 consecutive treated patients with epithelial ovarian cancer FIGO stage I and II were registered by the Danish Ovarian Cancer Group (DACOVA). Typing and grading were primarily performed by several pathologists, with and without training in gynecologic pathology. Review typing by one specially trained pathologist showed an agreement rate of 72% for serous and endometrioid carcinoma, 86% for mucinous and 100% for clear cell carcinoma. The agreement rate was calculated for patients primarily classified by pathologists trained in gynecologic pathology and for patients primarily classified by pathologists with and without training. The agreement rate was not better for the group of pathologists with special training in gynecologic pathology. Grading was performed according to two classifications: one based on architectural pattern and one on combined criteria. Review grading showed an agreement rate of 77% for architectural classification and an agreement rate of 52% for combined classification. The agreement rate between the two grade classifications at review was only 62%. Combined grading showed a significant tendency towards classifying more tumors as low grade. All grade classifications had prognostic value. The poor agreement rate of both type and grade even when performed by pathologists with expertise in gynecologic pathology, calls for a better and more reproducible characterization of malignant ovarian tumors.
    Materialart: Digitale Medien
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  • 4
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Science Ltd
    Cytopathology 10 (1999), S. 0 
    ISSN: 1365-2303
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Medizin
    Notizen: In cervical smears from post-menopausal women with mucosal atrophy it can be difficult to distinguish atrophic epithelial cell groups from neoplastic cell groups on cytomorphological criteria only. The consequence of post-menopausal atypia is that the woman is referred for a repeat smear after local oestrogen treatment or for colposcopy. We investigated whether immunocytochemical expression of Ki-67 (MIB-1) on the primary Papanicolaou-stained smear could be of any diagnostic help. Our data showed that negative Ki-67 expression is a very reliable indicator of a normal atrophic cell pattern, and by using this method on the original smear we were able to reduce the false-positive cytologic diagnoses by 86%.
    Materialart: Digitale Medien
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  • 5
    Digitale Medien
    Digitale Medien
    Springer
    Histochemistry and cell biology 72 (1981), S. 291-299 
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The influence of fixation and tissue preparation on the immunohistochemical localization of human fibronectin in gastrointestinal tract tissue has been examined using indirect immunoperoxidase technique. The most optimal staining result with strong intensity and well defined localization was obtained on frozen sections of unfixed material. Nearly identical results with improved morphology were obtained when staining paraffin sections of tissue fixed in 96% ethanol, 96%+1% acetic acid and absolute acetone. All other fixatives tested, 10% neutral buffered formalin, Lillie's AAF, Bouin's fixative, Clarke's fixative, 4% formaldehyde, 4% formaldehyde+ 0.5% cetylpyridiniumchloride (F-CPC), 4% formaldehyde +0.1% glutaraldehyde gave unsatisfactory results. However, proteolytic digestion with pepsin of paraffin sections prior to staining of buffered formalin and F-CPCfixed material gave results comparable with those obtained on unfixed frozen sections as regards definition of the staining whereas staining intensity was decreased in some degree. No improvement was observed when using proteolytic digestion of tissue fixed in other fixatives.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    Springer
    Histochemistry and cell biology 76 (1982), S. 51-56 
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary Fresh frozen tissue sections of human articular cartilage was treated without and with human testicular hyaluronidase (2×106 units/l) for 60 min at 37° C and stained by the indirect immunoperoxidase technique with rabbit antihuman fibronectin. The rabbit antihuman fibronectin was purified by affinity chromatography on human fibronectin-Sepharose. Fibronectin was only found on the acellular surface of the articular cartilage in tissue sections not treated with hyaluronidase. In this surface layer, probably identical to “lamina splendens”, the arrangement of fibronectin was as a membrane. No collagen was seen in this area by van Gieson staining. No staining for fibronectin was found in the cartilage matrix or in the chondrocytes. Treatment of the cartilage tissue with hyaluronidase resulted in visualization of high amount of fibronectin in the cartilage matrix, with the highest intensity around the chondrocytes. The staining of the acellular surface layer of the articular cartilage was identical with the results obtained without hyaluronidase treatment. These results indicate that articular cartilage is rich in fibronectin probably in complex with hyaluronic acid, and that the chondrocytes produce fibronectin in situ. It also demonstrates the steric hindrance of hyaluronic acid aggregates in diffusion of the antibody and the value of hyaluronidase treatment of tissue before demonstration of fibronectin.
    Materialart: Digitale Medien
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  • 7
    Digitale Medien
    Digitale Medien
    Springer
    Histochemistry and cell biology 77 (1983), S. 395-403 
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The presence and localization of fibronectin in normal and mechanically injured aorta in rabbits was studied using an indirect immunoperoxidase technique on tissue specimens fixed in formaldehyde, embedded in paraffin and pretreated with pepsin. The effect on staining quality of treatment with testicular hyaluronidase prior to immunoperoxidase staining was also examined. In the intima from normal aorta fibronectin was present in the subendothelial basal layer, along the internal and external elastic laminae, around and between the smooth muscle cells of the media and along the collagen and elastic fibres in the adventitia. Sixteen days after a single mechanical dilatation of the descending thoracic aorta all animals developed gross atherosclerotic-like changes. Microscopic examination revealed prominent neo-intimal hyperplasia with subendothelial, cushion-like thickenings but no medial or adventitial alterations. Fibronectin, in increased amounts, was found between and around the endothelial cells and in the subendothelial thickenings between the proliferating smooth muscle cells in relation to the fine, thin elastic and argyrophilic fibres. In the media and adventitia the amount and distribution of fibronectin was indistinguishable from uninjured control aortas. Treatment with testicular hyaluronidase before immunoperoxidase staining resulted in a higher staining resolution in normal and injured aorta. The conspicuous observation in the present study is that fibronectin exclusively accumulates in areas of tissue repair. The origins and functions of fibronectin during tissue injury and repair are discussed.
    Materialart: Digitale Medien
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  • 8
    Digitale Medien
    Digitale Medien
    Springer
    Histochemistry and cell biology 80 (1984), S. 39-44 
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The sequential changes in the presence of fibronectin in the synovial membrane during the development of antigen-induced arthritis in rabbits were studied using an indirect immunoperoxidase technique on the tissue specimens fixed in formaldehyde, embedded in paraffin and pretreated with pepsin and testicular hyaluronidase. The relation to the distribution of fibronectin and connective tissue fibres, demonstrated as either argyrophilic or red by van Gieson method, was studied. Initial after the induction of the arthritis the synoviocytes became increased in size and number. The subsynoviocytial tissue was invaded by granulocytes and the number of vessels was increased. Fibronectin in increased amount was seen around the lining cells. After 2–4 weeks a markedly reduced amount of granulocytes were seen together with an increase in the number of macrophages. At this stage, fibronectin was also found together with argyrophilic fibres in the subsynoviocytial connective tissue. After 8–13 weeks the synovial membrane was found hypertrophic and folded. The lining layer was unchanged, but in the subsynoviocytial tissue lymphocytes and plasma cells were more focally arranged. At that time fine fibres, stained by the van Gieson method, were present together with fibronectin and argyrophilic fibres in the subsynoviocytial tissue. The morphological change and the distribution of fibronectin in experimentally induced arthritis correlates temporally to the morphological change and the presence of fibronectin found in experimentally induced granulation tissue.
    Materialart: Digitale Medien
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  • 9
    Digitale Medien
    Digitale Medien
    Springer
    Histochemistry and cell biology 80 (1984), S. 463-467 
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The presence and localization of fibrin and fibronectin in rheumatoid nodules were studied using an indirect immunoperoxidase technique on tissue specimens fixed in formaldehyde, embedded in paraffin and pretreated with pepsin and testicular hyaluronidase. Three zones characteristic for rheumatoid nodules was recognized. 1) Central area with necrosis, containing at least in part fibrinogen-antigenic material and fibronectin especially in the peripheral part of the necrotic area. 2) Around the necrosis a layer of mesenchymal cells in a palisade arrangement was found. Especially in the external part of this layer fibronectin was demonstrated around and between the cells, where fibrin was absent. 3) Peripherally, a zone of non-specific granulation tissue containing moderate amount of fibronectin decreasing towards the surround mature connective tissue, was seen. In the border of the cellular layer vessels were found in variable amount. In some of the vessels vasculitis was demonstrated with the presence of inflammatory cell infiltration, fibrin deposition and occasionally thrombosis. The pathogenesis of the inflammatory reaction in rheumatoid nodules is discussed.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    Springer
    Histochemistry and cell biology 76 (1982), S. 517-525 
    ISSN: 1432-119X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie , Medizin
    Notizen: Summary The influence of testicular hyaluronidase treatment on the immunohistochemical localization of fibronectin in different tissues (human articular cartilage, large intestine, synovial membrane and experimental granulation tissue) as well on frozen as on formaldehyde fixed, paraffin embedded tissue, has been studied using the indirect immunoperoxidase technique. Pretreatment with hyaluronidase is essential in demonstrating fibronectin in frozen sections of human articular cartilage. In the other tissues examined treatment with hyaluronidase was not essential, but gave a more optimal staining quality. The effect of hyaluronidase treatment was to some extent dependent on the duration of treatment. In formaldehyde fixed, paraffin processed tissue the improvement with hyaluronidase treatment was only seen when the hyaluronidase followed pepsin digestion of the deparaffinized tissue sections.
    Materialart: Digitale Medien
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