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- Annertz, Karin, et al.
(författare)
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Incidence and survival of squamous cell carcinoma of the tongue in Scandinavia, with special reference to young adults.
- 2002
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Ingår i: International Journal of Cancer. - : Wiley. - 0020-7136. ; 101:1, s. 95-99
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Tidskriftsartikel (refereegranskat)abstract
- In several countries, increased incidence of squamous cell carcinoma (SCC) of the tongue in young adults has been suspected during the last decades. Some reports indicate a lower survival rate for young patients compared to older patients. In other reports, there has not been any considerable difference in survival when comparing young adults to older patients, whereas some authors have shown better survival for young adults. This disease is rare in young adults, and early reports were based on comparable small numbers and selected patients. Our aim was first to perform a population-based study to determine if an increased incidence in SCC of the tongue could be verified in a larger population comprising the Scandinavian countries Denmark, Finland, Sweden and Norway. A second aim was to determine survival rates for young adults compared to older patients. The material was based on the annual cancer incidence and survival reports from the Scandinavian cancer registries. The study period was 1960-1994. During that period, 5,024 SCCs of the tongue were reported. Of these, 276 (5.5%) were young adults (20-39 years). The incidence increased at all ages except for women 65-79 years old. The increase was most pronounced in young adults: 0.06-0.32 for men and 0.03-0.19 for women, counted by 100,000 person-years. Relative survival was significantly better for young adults compared to older patients.
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- Asp, Julia, 1973, et al.
(författare)
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Changes in p14(ARF) do not play a primary role in human chondrosarcoma tissues.
- 2001
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Ingår i: International journal of cancer. Journal international du cancer. - 0020-7136. ; 93:5, s. 703-5
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Tidskriftsartikel (refereegranskat)abstract
- The locus encoding the tumor suppressor p16 has been found to code for a second, different protein. This protein, p14(ARF), has been shown to protect p53 from degradation. Like p16, its gene is often altered in different cancers. In this study, the first unique exon, exon 1 beta, of p14(ARF), has been studied in 22 chondrosarcoma tissues using polymerase chain reaction, DNA sequencing and methylation-specific polymerase chain reaction. One chondrosarcoma was found to have exon 1 beta homozygously deleted, but neither mutations nor methylations were found in any of the chondrosarcomas. This indicates that genetic changes of p14(ARF) are a rare event in chondrosarcoma.
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- Asp, Julia, 1973, et al.
(författare)
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Changes of the p16 gene but not the p53 gene in human chondrosarcoma tissues.
- 2000
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Ingår i: International journal of cancer. Journal international du cancer. - 0020-7136. ; 85:6, s. 782-6
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Tidskriftsartikel (refereegranskat)abstract
- The role of two important tumour suppressor genes, p16 and p53, was evaluated in cartilaginous tumour tissues. Genomic DNA from 22 chondrosarcomas, 5 benign chondroid tumours, 1 sample of reactive proliferative cartilage and 2 samples of normal cartilage were analysed using polymerase chain reaction, single strand conformational polymorphism, DNA sequencing and methylation-specific polymerase chain reaction. The p16 gene was found to be partly methylated in 5 high-grade chondrosarcomas and homozygously deleted in 1 chondrosarcoma. Moreover, a polymorphism was detected in 3 malignant tumours, but not in benign tumours or normal cartilage. Analysis of the p53 gene revealed an unchanged structure in all samples. These findings show a role for p16, but not p53, in chondrosarcoma.
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- Bergström, A, et al.
(författare)
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Overweight as an avoidable cause of cancer in Europe
- 2001
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Ingår i: International Journal of Cancer. - 0020-7136 .- 1097-0215. ; 91:3, s. 421-30
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Tidskriftsartikel (refereegranskat)abstract
- There is growing evidence that excess body weight increases the risk of cancer at several sites, including kidney, endometrium, colon, prostate, gallbladder and breast in post-menopausal women. The proportion of all cancers attributable to overweight has, however, never been systematically estimated. We reviewed the epidemiological literature and quantitatively summarised, by meta-analysis, the relationship between excess weight and the risk of developing cancer at the 6 sites listed above. Estimates were then combined with sex-specific estimates of the prevalence of overweight [body mass index (BMI) 25-29 kg/m(2)] and obesity (BMI > or = 30 kg/m(2)) in each country in the European Union to obtain the proportion of cancers attributable to excess weight. Overall, excess body mass accounts for 5% of all cancers in the European Union, 3% in men and 6% in women, corresponding to 27,000 male and 45,000 female cancer cases yearly. The attributable proportion varied, in men, between 2.1% for Greece and 4.9% for Germany and, in women, between 3.9% for Denmark and 8.8% for Spain. The highest attributable proportions were obtained for cancers of the endometrium (39%), kidney (25% in both sexes) and gallbladder (25% in men and 24% in women). The largest number of attributable cases was for colon cancer (21,500 annual cases), followed by endometrium (14,000 cases) and breast (12,800 cases). Some 36,000 cases could be avoided by halving the prevalence of overweight and obese people in Europe.
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- Bergström, A., et al.
(författare)
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Physical activity and risk of renal cell cancer
- 2001
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Ingår i: International Journal of Cancer. - New York, USA : John Wiley & Sons. - 0020-7136 .- 1097-0215. ; 92:1, s. 155-157
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Tidskriftsartikel (refereegranskat)abstract
- The relation between physical activity and renal cell cancer is unclear. High occupational physical activity has been associated with a decreased risk of renal cell cancer among men-but not among women-in two previous studies, while no association has been found for leisure time physical activity. Our aim was to investigate the association between occupational and leisure time physical activity in a prospective cohort of 17,241 Swedish twins. Information on physical activity and a wide range of potential confounding factors was obtained through a mailed questionnaire. During follow-up from 1967 through 1997 we identified 102 cases of renal cell cancer. We found no evidence of an inverse association between either occupational or leisure time physical activity and risk of renal cell cancer in this prospective cohort.
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