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Träfflista för sökning "WFRF:(Petridou Eleni Th.) srt2:(2007-2009)"

Sökning: WFRF:(Petridou Eleni Th.) > (2007-2009)

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1.
  • Petridou, Eleni Th., et al. (författare)
  • Sun exposure, birth weight, and childhood lymphomas : A case control study in Greece
  • 2007
  • Ingår i: Cancer Causes and Control. - 0957-5243 .- 1573-7225. ; 18:9, s. 1031-1037
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Objectives  To explore whether the inverse association of sun exposure with non Hodgkin lymphoma among adults is also evident among the childhood population and test the specificity of the relation by contrasting the findings to those for Hodgkin lymphoma. Methods  A total of 87 cases of childhood (0–14 years) with non Hodgkin lymphoma and 71 with Hodgkin lymphoma, diagnosed in Greece through the national network of childhood Hematology-Oncology Units, during a 7-year period, along with 164 age- and gender-matched control children were enrolled in the study. The guardians of all eligible children were interviewed in person on the basis of a structured questionnaire covering socio-demographic, anthropometric, and perinatal characteristics. Average time of sunbathing per year at a seaside resort was used as a proxy variable of exposure to sun controlling for use of sun protection measures. Results  The estimated incidence of 10.2 cases per 1,000,000 children-years {95% Confidence Intervals (CI), 8.4–12.1} for NHL during the study period in Greece is around the average figure in countries of the European Union. There was an inverse association of sun exposure with Non Hodgkin lymphoma, namely, for an increment of 15 days of sunbathing at seaside resorts children had almost 40% lower risk (Odds Ratio: 0.60, 95% CI: 0.43–0.83), whereas no such association was evident for Hodgkin lymphoma. The risk for non Hodgkin lymphoma has been found to be statistically and significantly higher in birth weight (Odds ratio: 1.42 and 95% CI, 1.04–1.92, for every 500 g increment), whereas there was no substantial indication that maternal education or maternal smoking during the child’s life were important risk factors for the disease. Conclusions  This is the first study to provide epidemiological evidence that increased sun exposure of children may also be associated with a decreased risk of developing childhood non Hodgkin, but not Hodgkin lymphoma.</p> <p> </p>
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2.
  • Spyridopoulos, Themistoklis N., et al. (författare)
  • Inverse association of leptin levels with renal cell carcinoma : results from a case-control study
  • 2009
  • Ingår i: Hormones (Athens, Greece). - 1109-3099. ; 8:1, s. 39-46
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>OBJECTIVE: Leptin is primarily produced in adipose tissue and appears to play a modulatory role between metabolism and immunity. Given that obesity, a state of chronic inflammation, is an established risk factor for Renal Cell Carcinoma (RCC), we investigated the association between plasma leptin levels and RCC risk. DESIGN: This case-control study included 70 patients with newly diagnosed, histologically confirmed RCC and 280 age-, gender- and district of residence-matched controls. Anthropometric data, socio-demographic variables, medical history, lifestyle habits and dietary data were derived from a personal interview. Serum leptin and adiponectin levels were determined using standard commercial kits. Adjusted odds ratios for RCC risk were derived through multiple logistic regression analyses. RESULTS: Leptin levels were inversely associated with RCC risk (OR: 0.53, CI: 0.28- 0.99, p = 0.05), even after controlling for potential confounding factors, such as Body Mass Index (BMI), recent weight change, history of diabetes mellitus and other obesity related hormones, notably adiponectin. CONCLUSIONS: The precise mechanism linking obesity with RCC remains unclear; however, the inverse association of leptin with RCC might be attributed, at least in part, to hormonal cross-talk with complex neuron-endocrine and immune circuits. These findings, if confirmed in prospective and interventional studies, might further elucidate the underlying mechanisms.</p>
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3.
  • Spyridopoulos, Themistoklis N., et al. (författare)
  • Low adiponectin levels are associated with renal cell carcinoma : A case-control study
  • 2007
  • Ingår i: International Journal of Cancer. - 0020-7136 .- 1097-0215. ; 120:7, s. 1573-1578
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Adiponectin is a novel endogenous insulin sensitizer, secreted by mature adipocytes. Circulating levels of adiponectin are inversely associated with obesity and insulin resistance. Because obesity is a risk factor for renal cell carcinoma (RCC), we hypothesized that low adiponectin levels are associated with RCC. To evaluate this hypothesis, we conducted a case- control study of 70 patients with histologically confirmed RCC and 280 healthy controls matched by gender, age and county of residence. Study subjects were interviewed and blood samples were collected during a 32-month period in Athens, Greece. Serum adiponectin levels were statistically, significantly and inversely associated with RCC when compared with controls (OR = 0.76, p = 0.05) and this association remained practically unchanged after controlling for BMI; the introduction of waist to hip ratio along with adiponectin in the multiple logistic regression analysis model rendered the association between adiponectin and RCC risk insignificant, indicating that altered levels of adiponectin may mediate the effect of central or intra-abdominal obesity on RCC. Prospective studies as well as studies exploring underlying mechanisms are needed to fully explore the role of adiponectin in predicting future risk of RCC in humans.</p>
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