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  • Hillbertz, Nicolette Salmon, et al. (författare)
  • Viral and Molecular Aspects of Oral Cancer
  • 2012
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 32:10, s. 4201-4212
  • Forskningsöversikt (övrigt vetenskapligt)abstract
    • Squamous cell carcinoma (SCC) is the most common epithelial malignancy in the oral cavity. SCCs and their variants constitute over 90% of oral malignancies, and the disease is associated with poor prognosis. OSCC is a complex malignancy where environmental factors, virus infections, and genetic alterations most likely interact, and thus give rise to the malignant condition. Herein, we review the available literature regarding high-risk factors such as alcohol and tobacco usage; discuss the roles of human papillomaviruses (HPV), the Epstein-Barr virus, and the human herpes simplex virus (HSV); and evaluate several candidate genes associated with the condition: p53, p16(INK4) and p21(WAF1/CIP1) survivin, B-cell lymphoma-2 (BCL-2), keratins, Fibroblast growth factor 3 (FGF3), FGF4, FGF19, Oral cancer overexpressed gene 1 (ORAOV1), and Cyclin D1 (CCND1).
  • Holgersson, Georg, et al. (författare)
  • Effect of Increased Radiotoxicity on Survival of Patients with Non-small Cell Lung Cancer Treated with Curatively Intended Radiotherapy
  • 2015
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 35:10, s. 5491-5497
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim: To elucidate the impact of different forms of radiation toxicities (esophagitis, radiation pneumonitis, mucositis and hoarseness), on the survival of patients treated with curatively intended radiotherapy for non-small cell lung cancer (NSCLC). Patients and Methods: Data were individually collected retrospectively for all patients diagnosed with NSCLC subjected to curatively intended radiotherapy (>= 50 Gy) in Sweden during the time period 1990 to 2000. Results: Esophagitis was the only radiation-induced toxicity with an impact on survival (hazard ratio=0.83, p=0.016). However, in a multivariate model, with clinical-and treatment-related factors taken into consideration, the impact of esophagitis on survival was no longer statistically significant (hazard ratio=0.88, p=0.17). Conclusion: The effect on survival seen in univariate analysis may be related to higher radiation dose and to the higher prevalence of chemotherapy in this group. The results do not suggest that the toxicities examined have any detrimental effect on overall survival.
  • Holgersson, Georg, et al. (författare)
  • The Value of Induction Chemotherapy for Survival in Patients with Non-small Cell Lung Cancer Treated with Radiotherapy
  • 2012
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 32:4, s. 1339-1346
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim: The aim of the present study was to retrospectively investigate the impact of induction chemotherapy on treatment outcome in patients treated with curatively intended radiotherapy for non-small cell lung cancer (NSCLC). Patients and Methods: Patients with a diagnosed NSCLC that have been subjected to curatively intended irradiation (>= 50 Gy) and treated in an oncology department in Sweden during the years 1990-2000 were included in the study. Operated patients and patients having received concomitant chemotherapy were excluded. The included patients were localised by a manual search of all the oncology departments' medical records and radiation charts. Results: Patients treated with induction chemotherapy (n=79) had a significantly better overall survival compared with patients treated with radiotherapy alone (p=0.0097) in a univariate Cox regression analysis. A platinum/taxane combination produced the greatest survival benefit; hazard ratio=0.49 (95% confidence interval=0.31 to 0.75). Conclusion: We found that patients treated with induction chemotherapy in addition to radiotherapy for NSCLC have a better overall survival than patients treated with radiotherapy alone and that the best results are achieved using a platinum/taxane combination.
  • Jalouli, Miranda M., et al. (författare)
  • Differential Expression of Apoptosis, Cell Cycle Regulation and Intermediate Filament Genes in Oral Squamous Cell Carcinomas Associated with Toombak Use in Sudan
  • 2011
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 31:10, s. 3345-3351
  • Tidskriftsartikel (refereegranskat)abstract
    • Previously we used microarray genomic hybridization technology to explore genome-wide profiles of chromosomal aberrations in samples of oral squamous cell carcinomas (OSCCs) and paired normal controls. Based on these findings, 9 genes related to apoptosis, cell cycle regulation and intermediate filament proteins were selected and their differential expression status was examined by real-time quantitative RT-PCR in 26 samples of Sudanese OSCCs and their matched normal controls. The findings were correlated with the habit of toombak use. The mRNA levels of Bcl2, keratin 1, keratin 13 and p53 were significantly lower and the level of survivin was significantly higher in the OSCC samples of the toombak users compared to their paired control samples. A significant down-regulation in keratin I and keratin 13 expression levels was found in the OSCC samples of the non-toombak users compared to their normal control samples. The differential expression of genes related to apoptosis, cell cycle regulation and types I and II keratin could be useful diagnostic markers and provide valuable information for the understanding of oral malignancy in relation to toombak use.
  • Johansson, Fredrik, et al. (författare)
  • A Review of Dose-dense Temozolomide Alone and in Combination with Bevacizumab in Patients with First Relapse of Glioblastoma
  • 2012
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 32:9, s. 4001-4006
  • Forskningsöversikt (övrigt vetenskapligt)abstract
    • Treatment of patients with glioblastoma improved dramatically when concomitant and adjuvant temozolomide was added to external radiation therapy. The addition of this new treatment schedule as well as the improvements in individually-tailored radiation treatment, has resulted in a larger proportion of patients being fit for further treatment after first relapse. One of the most interesting combinations that have started to become part of the therapeutic arsenal in the daily clinic is dose-dense temozolomide in combination with bevacizumab. We reviewed and compiled the literature concerning the present topic based on a search of the PubMed database (http://www.ncbi.nlm.nih.gov/pubmed/) for the years between 1995 and 2011. The clinical studies that have been performed are small and divergent, making it difficult to grade the scientific evidence for the combinatorial treatment of dose-dense temozolomide and bevacizumab. However, the available studies and the experience we have at our departments suggest that this combination is of interest for glioblastoma patients experiencing first relapse. More randomized clinical trials are needed in order to establish the standard of treatment at first relapse in patients with glioblastoma.
  • Kindler, Csaba, et al. (författare)
  • Detection of Free Cancer Cells in Pelvic Lavage with Double Immunocytochemistry at Rectal Cancer Surgery
  • 2017
  • Ingår i: Anticancer Research. - International Institute of Anticancer Research. - 0250-7005 .- 1791-7530. ; 37:4, s. 1563-1568
  • Tidskriftsartikel (refereegranskat)abstract
    • Background/Aim: The aim of the present study was to describe a double immunocytochemical staining method for detecting free cancer cells after rectal cancer surgery and to evaluate their extent and prognostic role. Materials and Methods: Immunocytochemistry was performed using antibodies against cytokeratin 20/caudal-typehomeobox transcription factor 2 (CDX2) and mucin glycoprotein-2 (MUC2)/p53 protein. The study included 29 patients with infraperitoneal rectal cancer who underwent bowel resection and four controls. The pelvic lavage was retrieved at the start of laparotomy, after total mesorectal excision and after abdominal lavage with sterile water. Results: Free cancer cells were detected with the double immunocytochemical method in the two controls with carcinomatosis and one control with sigmoidal cancer. None of the patients with rectal tumours had presence of free cancer cells. Conclusion: Immunocytochemical analysis of peritoneal lavage was feasible and negative in patients with infraperitoneal rectal cancer. Further studies are encouraged to investigate the clinical relevance in cases with free cancer cells after incomplete total mesorectal excision.
  • Kjellsson Lindblom, Emely, et al. (författare)
  • Hypoxia Induced by Vascular Damage at High Doses Could Compromise the Outcome of Radiotherapy
  • 2019
  • Ingår i: Anticancer Research. - INT INST ANTICANCER RESEARCH. - 0250-7005 .- 1791-7530. ; 39:5, s. 2337-2340
  • Tidskriftsartikel (refereegranskat)abstract
    • Background/Aim: This study investigated the impact of temporary vascular collapse on tumour control probability (TCP) in stereotactic body radiotherapy (SBRT), taking into account different radiosensitivities of chronically and acutely hypoxic cells. Materials and Methods: Three-dimensional tumours with heterogeneous oxygenation were simulated assuming different fractions of collapsed vessels at every treatment fraction. The modelled tumours contained a chronically hypoxic subvolume of 30-60% of the tumour diameter, and a hypoxic fraction amp;lt;= 5 mm Hg of 30-50%. The rest of the tumours were well-oxygenated at the start of the simulated treatment. Results: For all simulated cases, the largest reduction in TCP from 97% to 2% was found in a tumour with a small chronically hypoxic core treated with 60 Gy in eight fractions and assuming a treatment-induced vascular collapse of 35% in the well-oxygenated region. Conclusion: The timing of SBRT fractions should be considered together with the tumour oxygenation to avoid loss of TCP in SBRT.
  • Koyi, Hirsh, et al. (författare)
  • Co-localisation of Glandular and Squamous Cell Markers in Non-small Cell Lung Cancer
  • 2018
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 38:6, s. 3341-3346
  • Tidskriftsartikel (refereegranskat)abstract
    • Aim: Accurate classification of lung carcinomas is crucial for selecting appropriate and adequate chemotherapy treatment. In this study, glandular (adenocarcinoma), and squamous cell differentiation were examined in non-small cell lung carcinoma (NSCLC) without obvious light-microscopic signs of squamous and glandular differentiation. Materials and Methods: All lung tumours diagnosed as NSCLC (n=61), without obvious squamous or glandular features, were obtained by bronchial biopsy or core biopsy supported by computed tomography. They were diagnosed during 1996-2009, at the Department of Pathology, Gavle Hospital, Sweden. The tumours were examined immunohistochemically with antibodies against CK5/6, p63 (squamous cell markers) and carcinoembryonic antigen (CEA) (adenocarcinoma cell marker). Double immunostaining (p63/CEA) was also performed on individual tumours. Results: The tumours originated from 36 males and 25 females, aged 54-83 years. Pure squamous cell differentiation (CK5/6 positive only) occurred in 34.4% (n=21) tumours and pure adenocarcinoma cell differentiation (CEA positive only) was present in 14.9% (n=9). Tumours with both squamous and adenocarcinoma features (CK5/6 and CEA positive) were most prevalent (47.5%, n=29). Two tumours (3.3%) were negative with both stains (and also synaptophysin negative). Double immunostaining (p63/CEA) revealed that squamous and adenocarcinoma markers were co-localised in cells in certain tumours. Conclusion: Co-localisation of squamous and adenocarcinoma markers in the same tumour cell suggests that additional analyses for novel biomarkers of specific lung cancer types may subsequently lead to a refined treatment choice for patients with the goal of improving clinical outcomes.
  • Koyi, Hirsh, et al. (författare)
  • Non-small Cell Lung Cancer (NSCLC) in Octogenarians in Clinical Practice
  • 2016
  • Ingår i: Anticancer Research. - 0250-7005 .- 1791-7530. ; 36:10, s. 5397-5402
  • Tidskriftsartikel (refereegranskat)abstract
    • Background/Aim: Globally, an increasing proportion of cancer patients are aged >65 years and many are aged >70 years. Treatment of the elderly with lung cancer has, therefore, become an important issue. We performed a retrospective study of our patients to demonstrate how octogenarians with non-small cell lung cancer (NSCLC) are treated in real-life clinical practice. Patients and Methods: This was a retrospective observational study of all elderly (>= 80 years) patients with NSCLC referred to the Department of Respiratory Medicine and Allergy, Karolinska Hospital, Sweden, 2003-2010, and followed until June, 2016. Results: In total, 452 patients, 216 (47.8%) men and 236 (52.2%) women, were included. The mean and median age was 83 years; 28 (6.2%) were aged 90 years or more. Current or former smokers constituted 91.1%, with men having smoked more (p<0.001). There was no difference in performance status (PS) between genders with PS 0-1 in 45.4%, PS 2 in 25.6% and PS3-4 in 29%. About a third each was diagnosed in stages 1-II, III and IV. Adenocarcinoma was most common (45.6%), 18.1% had squamous cell carcinoma, while histological diagnosis was unavailable in 23.2%. Best supportive care (BSC) was given only to 209 patients (46.2%). Potentially curative therapy was administered to 16.5% of men and 20.3% of the women with surgery performed in 35 patients (7.8%) and stereotactic body radiation therapy (SBRT) in 48 patients (10.6%). Chemotherapy was given to 51 patients (11.2%) and palliative radiotherapy to 77 (17.0%). Second-line chemotherapy was given in 4% and third-line in 1.5%. Only one patient received fourth-line. Male patients who received chemotherapy survived a mean of 281 days and for female patients it was 332 days (not significant). Median overall survival (OS) was 115 days in patients receiving BSC and 362 days in patients given any therapy. Patients who underwent surgery for stage I-II had a median OS of 5.6 years compared to 3.5 years for patients given SBRT. Conclusion: Treatment of NSCLC patients 80 years and older with any modality is feasible with a good PS. Survival is fairly good with surgery or SBRT.
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