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  • Mucci, L. A., et al. (författare)
  • Dietary acrylamide and risk of renal cell cancer
  • 2004
  • Ingår i: International Journal of Cancer. - Hoboken, USA : John Wiley & Sons. - 0020-7136. - 0020-7136 (Print) 0020-7136 (Linking) ; 109:5, s. 774-776
  • Tidskriftsartikel (refereegranskat)abstract
    • The detection of acrylamide, classified as a probable human carcinogen, in commonly consumed foods created public health alarm. Thus far, only 2 epidemiologic studies have examined the effect of dietary acrylamide on cancer risk. Presently, we reanalyzed data from a large population-based Swedish case-control study of renal cell cancer. Food frequency data were linked with national food databases on acrylamide content, and daily acrylamide intake was estimated for participants. The risk of renal cell cancer was evaluated for intake of food items with elevated acrylamide levels and for total daily acrylamide dose. Adjusting for potential confounders, there was no evidence that food items with elevated acrylamide, including coffee (OR(highest vs. lowest quartile) = 0.7; 95% CI = 0.4-1.1), crisp breads (OR(highest vs. lowest quartile) = 1.0; 95% CI = 0.6-1.6) and fried potatoes (OR(highest vs. lowest quartile) = 1.1; 95% CI = 0.7-1.7), were associated with a higher risk of renal cell cancer risk. Furthermore, there was no association between estimated daily acrylamide intake through diet and cancer risk (OR(highest vs. lowest quartile) = 1.1; 95% CI = 0.7-1.8; p for trend = 0.8). The results of this study are in line with the 2 previous studies examining dietary acrylamide and suggest there is no association between dietary acrylamide and risk of renal cell cancer.
  • Rashidkhani, B., et al. (författare)
  • Alcohol consumption and risk of renal cell carcinoma a prospective study of Swedish women
  • 2005
  • Ingår i: International Journal of Cancer. - Hoboken, USA : John Wiley & Sons. - 0020-7136. - 0020-7136 (Print) 0020-7136 (Linking) ; 117:5, s. 848-853
  • Tidskriftsartikel (refereegranskat)abstract
    • Previous literature, although not consistent, suggests that moderate alcohol consumption might be associated with decreased risk of renal cell carcinoma (RCC) in women. Thus, we examined the association between alcohol intake and the incidence of RCC by analyzing data from the Swedish Mammography Cohort, a population-based prospective cohort of 59,237 women, aged 40-76 years, who, at baseline in 1987-1990, were cancer free and had completed a food-frequency questionnaire including questions about alcohol consumption. Through June 30, 2004, 132 incident cases of RCC were diagnosed. We used the Cox proportional hazards model to estimate age and body mass index (BMI) adjusted rate ratios (RRs) and their 95% confidence intervals (CIs). Women who consumed >4.3 grams per day of alcohol (ethanol) had nonsignificantly lower risk of RCC than did women who consumed <2.5 g/d (RR = 0.71, 95% CI 0.42-1.19); among women > or = 55 years of age at entry into the cohort, corresponding risk estimates were RR = 0.33, 95% CI 0.10-1.05, p for trend = 0.04 and among women with BMI >25 kg/m2, RR = 0.30, 95% CI 0.09-0.97, p for trend = 0.04. Consistent with these findings, women who drank 1 or more servings of total alcoholic beverages per week had lower RCC risk than did women who drank less (RR = 0.62, 95% CI 0.41-0.94); the corresponding estimate for women > or = 55 years of age was RR = 0.44, 95% CI 0.22-0.88. Results from our prospective cohort study of middle-aged and elderly women indicate that moderate alcohol consumption may be associated with decreased risk of RCC.
  • Rashidkhani, B., et al. (författare)
  • Fruits, vegetables and risk of renal cell carcinoma a prospective study of Swedish women
  • 2005
  • Ingår i: International Journal of Cancer. - Hoboken, USA : John Wiley & Sons. - 0020-7136. - 0020-7136 (Print) 0020-7136 (Linking) ; 113:3, s. 451-455
  • Tidskriftsartikel (refereegranskat)abstract
    • Findings of epidemiologic studies on the relationship between fruit and vegetable consumption and renal cell carcinoma (RCC) risk have been inconclusive. To study the association between fruits and vegetables and risk of RCC in a population-based prospective cohort study of Swedish women, we collected dietary information from 61,000 women age 40-76 years by a food-frequency questionnaire. During 13.4 years of follow-up 122 women developed RCC. Cox proportional hazards models were used to estimate relative risks (RR) with 95% confidence interval (CI). Women consuming 5 or more servings of fruit and vegetables daily had a relative risk of 0.59 (95% CI = 0.26-1.34) in comparison to them consuming less than once daily. When fruits and vegetables were examined separately, those who consumed more than 75 servings per month of fruits or vegetables had multivariate relative risk of 0.59 (95% CI = 0.27-1.25) and 0.60 (95% CI = 0.31-1.17) respectively, compared to those consuming 11 or less servings per month. Within the group of fruits, the strongest inverse association was observed for banana (p = 0.07 by Wald test). The risk of RCC increased monotonically with increasing intake frequencies of fruit juice (p-value for trend = 0.10). Within the group of vegetables, the strongest inverse association was observed for root vegetables (p = 0.03 by Wald test). The risk of RCC decreased with increasing consumption frequencies of white cabbage (p for trend = 0.07). Frequent consumption of salad vegetables (once or more per day) decreased the risk by 40% (RR = 0.60; 95% CI = 0.30-1.22), in comparison to no consumption. Our results suggested that high consumption of fruits and vegetables might be associated with reduced risk of RCC.
  • Schlehofer, B., et al. (författare)
  • International renal-cell-cancer study. VI. the role of medical and family history
  • 1996
  • Ingår i: International Journal of Cancer. - New York, USA : John Wiley & Sons. - 0020-7136. - 0020-7136 (Print) 0020-7136 (Linking) ; 66:6, s. 723-726
  • Tidskriftsartikel (refereegranskat)abstract
    • A number of medical conditions have been linked with renal-cell cancer, although the evidence is not consistent in every case. In a large international case-control study of renal-cell cancer, we examined, among other hypotheses, associations with a personal history of certain medical conditions and a family history of cancer of the kidney or thyroid. Relative risks (RR), adjusted for the effects of age, gender, body-mass index, tobacco smoking and study centre, were significantly increased by a history of kidney stones or thyroid or kidney disease. The RR were not altered by additional adjustment for hypertension, or when diagnoses were restricted to those made at least 5 or 10 years before 1987 (the usual "cut-off" date). The link with kidney injury is particularly likely to be affected by recall bias. Increased RR of borderline significance were found for kidney infection (RR, 1.2) and diabetes (RR, 1.4). Having one first-degree relative with kidney cancer was associated with a significantly increased risk of renal-cell cancer (RR, 1.6; 95% Cl, 1.1-2.4). Seven cases reported 2 first-degree relatives with kidney cancer. No controls had first-degree relatives with kidney cancer. None of our participants reported having von Hippel-Lindau disease. The data suggests that a few conditions of the kidney are strongly associated with renal-cell cancer and that heredity plays a role in a small proportion of cases.
  • Wolk, A., et al. (författare)
  • International renal cell cancer study. VII. Role of diet
  • 1996
  • Ingår i: International Journal of Cancer. - Hoboken, USA : John Wiley & Sons. - 0020-7136. - 0020-7136 (Print) 0020-7136 (Linking) ; 65:1, s. 67-73
  • Tidskriftsartikel (refereegranskat)abstract
    • We investigated the role of diet in the etiology of renal cell cancer (RCC) in a multi-center, population-based case-control study conducted in Australia, Denmark, Sweden and the United States, using a shared protocol. A total of 1,185 incident histopathologically confirmed cases (698 men, 487 women) and 1,526 controls (915 men, 611 women) frequency-matched to cases by sex and age were included in the analyses. The association between RCC and diet was estimated by relative risks (RR) and 95% confidence intervals (CI) adjusted for age, sex, study center, body mass index and smoking. A statistically significant positive association was observed for total energy intake (RR = 1.7, 95% CI = 1.4-2.2 for the highest vs. lowest quartile, p value for trend < 0.00001), while the hypothesis that protein and fat are risk factors independent of energy was not supported. Fried meats were associated with increased RCC risk, while vegetables and fruits were protective, with the strongest effect observed for the highest quartile of consumption of orange/dark green vegetables but not vitamin C or beta carotene. Increased risk was associated with low intake (lowest decile) of vitamin E and magnesium. We observed an apparent protective effect of alcohol confined to women and probably due to chance. Our findings indicate an important role of nutrition in the development of RCC. The apparent positive association of energy intake with risk of RCC needs further investigation in a prospective cohort study to exclude the possible impact of differences in recall between cases and controls.
  • Lomnytska, Marta, et al. (författare)
  • Increased expression of cSHMT, Tbx3 and utrophin in plasma of ovarian and breast cancer patients
  • 2006
  • Ingår i: International Journal of Cancer. - 0020-7136 .- 1097-0215. ; 118:2, s. 412-421
  • Tidskriftsartikel (refereegranskat)abstract
    • Plasma samples of ovarian and breast cancer patients were used to search for markers of cancer using 2-dimensional gel electrophoresis and matrix-assisted laser desorption/ionization time of flight mass spectrometry. Truncated forms of cytosolic serine hydroxymethyl transferase (cSHMT), T-box transcription factor 3 (Tbx3) and utrophin were aberrantly expressed in samples from cancer patients as compared to samples from noncancerous cases. Aberrant expression of proteins was validated by immunoblotting of plasma samples with specific antibodies to cSHMT, Tbx3 and utrophin. A cohort of 79 breast and 39 ovarian cancer patients and 31 individuals with noncancerous conditions was studied. We observed increased expression of truncated cSHMT, Tbx3 and utrophin in plasma samples obtained from patients at early stages of disease. Our data suggest that cSHMT, Tbx3 and utrophin can be used as components of multiparameter monitoring of ovarian and breast cancer (supplementary material for this article can be found on the International Journal of Cancer website at http://www.interscience.wiley.com/jpages/0020-7136/suppmat/index.html).
  • Jarbo, Caroline, et al. (författare)
  • Detailed assessment of chromosome 22 aberrations in sporadic pheochromocytoma using array-CGH.
  • 2006
  • Ingår i: International Journal of Cancer. - 0020-7136 .- 1097-0215. ; 118:5, s. 1159-64
  • Tidskriftsartikel (refereegranskat)abstract
    • Pheochromocytoma is a predominantly sporadic neuroendocrine tumor derived from the adrenal medulla. Previous low resolution LOH and metaphase-CGH studies reported the loss of chromosomes 1p, 3q, 17p and 22q at various frequencies. However, the molecular mechanism(s) behind development of sporadic pheochromocytoma remains largely unknown. We have applied high-resolution tiling-path microarray-CGH with the primary aim to characterize copy number imbalances affecting chromosome 22 in 66 sporadic pheochromocytomas. We detected copy number alterations on 22q at a frequency of 44%. The predominant finding was monosomy 22 (30%), followed by terminal deletions in 8 samples (12%) and a single interstitial deletion. We further applied a chromosome 1 tiling-path array in 7 tumors with terminal deletions of 22q and found deletions of 1p in all cases. Our overall results suggest that at least 2 distinct regions on both 22q and 1p are important in the tumorigenesis of sporadic pheochromocytoma. A large proportion of pheochromocytomas also displayed indications of cellular heterogeneity. Our study is to our knowledge the first array-CGH study of sporadic pheochromocytoma. Future analysis of this tumor type should preferably be performed in the context of the entire human genome using genome-wide array-CGH, which is a superior methodological approach. Supplemental material for this article can be found on the International Journal of Cancer website at http://www.interscience.wiley.com/jpages/0020-7136/suppmat/index.htm
  • Ceder, Yvonne, et al. (författare)
  • Expression of prostate-specific antigen (PSA) and human glandular kallikrein 2 (hK2) in ileum and other extraprostatic tissues
  • 2005
  • Ingår i: International Journal of Cancer. - John Wiley & Sons. - 0020-7136. ; 113:2, s. 290-297
  • Tidskriftsartikel (refereegranskat)abstract
    • Prostate-specific antigen (PSA) is a widely used marker for prostate cancer. In the literature, there are reports of nonprostatic expression of PSA that potentially can affect early diagnosis. However, the results are scattered and inconclusive, which motivated us to conduct a more comprehensive study of the tissue distribution of PSA and the closely related protein human glandular kallikrein 2 (hK2). RT-PCR, in situ hybridization and immunohistochemistry were used to detect expression of both PSA and hK2 in secretory epithelial cells of trachea, thyroid gland, mammary gland, salivary gland, jejunum, ileum, epididymis, seminal vesicle and urethra, as well as in Leydig cells, pancreatic exocrine glands and epidermis. Immunometric measurements revealed that the concentration of PSA in nonprostatic tissues represents less than 1% of the amount in normal prostate. Pronounced expression of PSA was detected in the Paneth cells in ileum, which prompted us to compare functional parameters of PSA in ileum and prostate. We found that in homogenates from these 2 tissues, PSA manifested equivalent amidolytic activity and capacity to form complexes with protease inhibitors in blood in vitro. Thus, PSA released from sources other than the prostate may add to the plasma pool of this protein, but given the lower levels detected from those sites, it is unlikely that nonprostatic PSA normally can interfere with the diagnosis of prostate cancer. Nevertheless, this risk should not be neglected as it may be of clinical significance under certain circumstances. Supplementary material for this article can be found on the International Journal of Cancer website at http://www.interscience.wiley.com/jpages/0020-7136/ suppmat/index.htmi.
  • Abrahamsen, PA (författare)
  • Radical prostatectomy - why?
  • 2002
  • Ingår i: International Journal of Cancer. - John Wiley & Sons. - 0020-7136. ; s. 27-27
  • Konferensbidrag (refereegranskat)
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