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排序方式: 共有719条查询结果,搜索用时 15 毫秒
1.
Recurrence, progression and survival in bladder cancer. A retrospective analysis of 232 patients with greater than or equal to 5-year follow-up 总被引:1,自引:0,他引:1
A retrospective study of 232 bladder tumours with minimum follow-up 5 years is presented. The carcinoma was superficial in 66%, muscle-invasive in 31% and could not be staged in 3%. Primary treatment was mainly transurethral resection for superficial tumour, but was cystectomy or radiotherapy in 22 of 29 T1 G3. Of the superficial tumours, 71% recurred. Progression to higher T stage occurred in 15% of Ta and 29% of T1 tumours, and half of these patients died of bladder cancer. The corrected 5-year survival rates in grades 1, 2A, 2B and 3-4 were 96, 84, 64 and 43%, and in stages Ta, T1, T2 and T3 they were 94, 69, 40 and 31%. All patients with T4 tumour died within 4 years. Among the 45 patients with 40 Gy irradiation + cystectomy, the corrected 5-year survival rate was 83% in superficial and 64% in muscle-invasive tumours, and among the 38 with radical radiotherapy the rates in T1-3 were 46, 36 and 13%. Transurethral resection was successful in most Ta cases. Most T1 tumours were, like T2-4, of higher grade than Ta. Prognosis was worse in T1 than in Ta. After progression to muscle-invasive disease, even during close follow-up the outlook was poor, as poor as for patients with primary muscle-invasive disease. 相似文献
2.
Fasth AE Cao D van Vollenhoven R Trollmo C Malmström V 《Scandinavian journal of immunology》2004,60(1-2):199-208
CD4+ T cells lacking the costimulatory molecule CD28 have been described both in elderly individuals and in chronic inflammatory disorders, one being rheumatoid arthritis (RA). We, in this study, provide a comprehensive characterization of cell surface markers on and function of such CD28nullCD4+ T cells, as well as correlations with clinical parameters. We conclude that of all surface markers associated with these cells, only CD57 and CD11b are expressed on the majority of them. This CD28null population occurred in one-third of patients with RA and was independent of clinical characteristics. The population was persistent and expanded in peripheral blood, but was excluded from the joint in most patients. Functionally, CD28nullCD4+ T cells were potent effector memory cells with regard to their proliferation and cytokine-secretion profiles. This capacity correlated with a hitherto unpublished surface phenotype, the cells being uniformly CCR7- and CD43high. Moreover, a new terminally differentiated CD45RA+CCR7- population of CD4+ T cells was identified. We would like to suggest that in the unbalanced immune system of patients with autoimmune disease and chronic infection an expanded CD28nullCD4+ T-cell population able to secrete high levels of cytokines is likely to contribute to disease manifestations. 相似文献
3.
Activation of CD4+ T cells plays an important role in type II collagen (CII) induced arthritis (CIA). The CD4+ T cell dependency is demonstrated by anti-CD4 antibody treatment which suppresses CIA in mice if injected before CII immunization. The same anti-CD4 treatment at a later stage does not suppress CIA, despite extensive elimination of peripheral CD4+ T cells. A possible explanation for this discrepancy is that activated T cells might not be as easily influenced by the anti-CD4 antibodies as resting T cells. To address this question, the proliferative capacity of CII reactive CD4+ lymph node (LN) T cells, in mice treated with anti-CD4 antibodies before or after the CII immunization, was analyzed. In mice treated before immunization the capacity of LN cells to proliferate in vitro was markedly suppressed while in mice receiving anti-CD4 treatment after immunization it was retained. Flow cytometric analysis revealed that the anti-CD4 treatment before and after immunization reduced the number of CD4+ LN T cells to the same level. The small population of CD4+ LN cells which were left after anti-CD4 treatment of naive mice all expressed CD44, a marker for previously activated T cells in mice. We propose that activation render CII reactive T cells more resistant to anti-CD4 treatment than virgin T cells are and suggest that the lack of therapeutic effect of late anti-CD4 treatment in CIA does not necessarily implicate that CD4+ T cells are unimportant in that stage of the disease. 相似文献
4.
Marijke S. Labots-Vogelesang Doreth A. M. Teunissen Vivianne Kranenburg Antoine L. M. Lagro-Janssen 《The European journal of general practice》2021,27(1):19
BackgroundGeneral practitioners (GPs) encounter women suffering from premenstrual symptoms. Often women with premenstrual problems experience little understanding from GPs. Views of GPs will influence their approach to these women and their care. Insight into these views is lacking but could help in designing educational programmes for GPs.ObjectivesTo explore the views of Dutch GPs towards aetiology, diagnostic process, and preferred treatment of premenstrual symptoms.MethodsIn 2017, we conducted a qualitative, semi-structured, interview survey among 27 GPs, varying in age, gender, and practice setting.ResultsImportant themes emerged from the interviews: ‘no need for a symptom diary,’ ‘PMS defined as illness’ exclusively in case of disruption of normal functioning, and ‘symptomatic treatment’ as preferred approach. Most GPs considered PMS to be a physiological phenomenon, with taking history as an adequate diagnostic tool. Almost all GPs regarded a normal cyclical hormonal cycle as causal; many also mentioned the combination with personal sensitivity. Some pointed to a dividing line between physiological condition and illness if women could not function normally in daily life. Lastly, the approach GPs preferred was focussing on relieving symptoms of individual patients. In addition to explaining the hormonal cycle and lifestyle advice, all GPs advocated oral contraceptives, and if necessary psychological support. GPs expressed negative feelings about prescribing antidepressants.ConclusionGPs considered physiological changes and personal sensitivity as aetiological factors. We recommend more training to improve GPs knowledge and more insight into the burden of women with PMS. A symptom diary is an essential diagnostic tool for GPs. 相似文献
5.
Nygren P Csòka K Larsson R Busch C Wester K Malmström PU 《The Journal of urology》1999,162(6):2200-2204
PURPOSE: In vitro tumor models could support the process of development of new cytotoxic drugs and selection of suitable drugs for the individual patient. We investigated whether the testing of tumor cells from patients with kidney or urinary bladder carcinoma by fluorometric microculture cytotoxicity assay (FMCA) could provide clinically relevant data for these tumor types. MATERIALS AND METHODS: A total of 45 tumor samples from patients with kidney or urinary bladder carcinoma were compared with 247 samples of other tumor types with respect to sensitivity to 8 standard and 6 investigational cytotoxic drugs in the FMCA, a 72 hour assay based on the concept of total cell kill. In bladder carcinomas, sensitivity to standard drugs was correlated to various tumor characteristics. RESULTS: The technical success rate for kidney and bladder carcinomas was high; approximately 90% of the samples could be analyzed successfully. Kidney carcinomas were highly resistant to standard drugs and bladder carcinomas essentially as sensitive as carcinomas of the breast and ovary but with a steeper dose-response relationship. In bladder carcinoma there was no clear relationship between tumor stage, grade, ploidy, mitoses or p53 expression and drug sensitivity. Except for suramin, kidney carcinomas were poorly sensitive to the investigational drugs CdA, gemcitabine, paclitaxel, vinorelbine and topotecan. In bladder carcinomas paclitaxel, gemcitabine and suramin showed promising activity. CONCLUSIONS: The FMCA seems suitable for cytotoxic drug sensitivity testing of urinary tract carcinomas. This technique may have a role in new drug development in these tumor types. 相似文献
6.
Stage migration in breast cancer: surgical decisions concerning isolated tumour cells and micro-metastases in the sentinel lymph node. 总被引:3,自引:0,他引:3
Louise de Widt-Levert Vivianne Tjan-Heijnen Peter Bult Theo Ruers Theo Wobbes 《European journal of surgical oncology》2003,29(3):216-220
AIMS: Sentinel lymph node biopsy has replaced the axillary lymph node dissection (ALND) in primary surgery for breast cancer in many hospitals and is expected to become the standard of care in due time. Since the sentinel lymph node is subjected to more extensive pathologic examination than the lymph nodes in the axillary dissection specimen, more patients are found to be node positive (N+); however many of them contain micro-metastases (相似文献
7.
Participation of older people in designing and improving the care and services provided in residential care settings is limited. Traditional forms of democratic representation, such as client councils, and consumer models are management-driven. An alternative way of involving older people in the decisions over their lives, grounded in notions of care ethics and deliberative democracy, was explored by action research. In line with this tradition older people engage in collective action to enhance the control over their lives and those of others. In this article the theoretical background of altruistic action is presented and illustrated by a case example of a group of older women who changed the food policies within their residential home. Altruistic action is the joint and coordinated action by a group of clients based on their agenda. Such action is given in by a shared dissatisfaction and search for connections. Altruistic action may enhance the sense of self, belonging and ownership, and create a transformative movement enhancing the wellbeing and community life in residential settings. 相似文献
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10.
Koskela T Malmström K Sairanen U Peltola S Keski-Karhu J Silvasti M 《Respiratory medicine》2000,94(12):1229-1233
The fine particle dose delivered via dry powder inhalers (DPIs) is often affected by the inspiratory flow rate generated during inhalation. This has clinical implications, since the fine particle dose determines the amount of drug reaching the lungs. With Easyhaler DPI the fine particle dose remains relatively constant over the range of inspiratory flow rates from 30-60 l min(-1). The aim of this study was to confirm that clinical efficacy is maintained even at low flow rates by comparing the bronchodilating effect of salbutamol (100 microg) delivered via Easyhaler at a target inspiratory flow of 30 l min(-1) with the same dose of salbutamol via pressurised metered-dose inhaler (pMDI) plus spacer. This was a double-blind, randomized, cross-over study with double-dummy technique. Twenty-one paediatric and adult asthmatic patients completed the study, which was conducted over 2 study days. The main outcome parameter was forced expiratory volume in 1 sec (FEV1). The patients were trained to generate a low peak inspiratory flow rate (PIFR) of 30 l min(-1), and the actual PIFR through Easyhaler was recorded. The average PIFR through Easyhaler was 28.7 l min(-1). The difference in the maximum value of FEV1 (FEV1max) between the treatments after drug inhalation was 0.01 l. The mean of FEV1max was 2.67 l after pMDI plus spacer compared to 2.69 l after Easyhaler. Improvements in FEV1 were clinically significant. No significant differences between treatments were found. A reasonably low inspiratory flow rate through Easyhaler produces an equivalent improvement in lung function to a correctly used pMDI plus spacer. Hence, Easyhaler can be used with confidence in patients who may have difficulty in generating a high inspiratory flow rate, such as children and the elderly. 相似文献