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Sökning: WFRF:(Karalexi Maria A.)

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1.
  • Sergentanis, Theodoros N, et al. (författare)
  • Risk for childhood leukemia associated with maternal and paternal age
  • 2015
  • Ingår i: European Journal of Epidemiology. - 0393-2990 .- 1573-7284. ; 30:12, s. 1229-1261
  • Tidskriftsartikel (refereegranskat)abstract
    • The role of reproductive factors, such as parental age, in the pathogenesis of childhood leukemias is being intensively examined; the results of individual studies are controversial. This meta-analysis aims to quantitatively synthesize the published data on the association between parental age and risk of two major distinct childhood leukemia types in the offspring. Eligible studies were identified and pooled relative risk (RR) estimates were calculated using random-effects models, separately for childhood acute lymphoblastic leukemia (ALL) and acute myeloid leukemia (AML). Subgroup analyses were performed by study design, geographical region, adjustment factors; sensitivity analyses and meta-regression analyses were also undertaken. 77 studies (69 case-control and eight cohort) were deemed eligible. Older maternal and paternal age were associated with increased risk for childhood ALL (pooled RR = 1.05, 95 % CI 1.01-1.10; pooled RR = 1.04, 95 % CI 1.00-1.08, per 5 year increments, respectively). The association between maternal age and risk of childhood AML showed a U-shaped pattern, with symmetrically associated increased risk in the oldest (pooled RR = 1.23, 95 % CI 1.06-1.43) and the youngest (pooled RR = 1.23, 95 % CI 1.07-1.40) extremes. Lastly, only younger fathers were at increased risk of having a child with AML (pooled RR = 1.28, 95 % CI 1.04-1.59). In conclusion, maternal and paternal age represents a meaningful risk factor for childhood leukemia, albeit of different effect size by leukemia subtype. Genetic and socio-economic factors may underlie the observed associations. Well-adjusted studies, scheduled by large consortia, are anticipated to satisfactorily address methodological issues, whereas the potential underlying genetic mechanisms should be elucidated by basic research studies.
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2.
  • Thomopoulos, Thomas P, et al. (författare)
  • Prelabor cesarean delivery and early-onset acute childhood leukemia risk.
  • 2016
  • Ingår i: European Journal of Cancer Prevention. - 0959-8278 .- 1473-5709. ; 25:2, s. 155-161
  • Tidskriftsartikel (refereegranskat)abstract
    • The long-term impact of cesarean delivery (CD) on the health of the offspring is being explored methodically. We sought to investigate the effect of birth by (a) prelabor and (b) during-labor CD on the risk of early-onset (≤3 years) acute lymphoblastic leukemia (ALL), specifically of its prevailing precursor B (B-ALL) subtype. A total of 1099 incident cases of ALL (957 B-ALL), 131 of acute myeloid leukemia (AML), and their 1 : 1 age-matched and sex-matched controls, derived from the Nationwide Registry for Childhood Hematological Malignancies (1996-2013), were analyzed using multivariate regression models. A null association was found between prelabor and/or during labor CD and either ALL (B-ALL) or AML in the 0-14 age range. By contrast, birth by CD increased significantly the risk of early-onset ALL [odds ratioCD (ORCD)=1.57, 95% confidence interval (CI): 1.10-2.24] mainly on account of prelabor CD (ORprelaborCD=1.66, 95% CI: 1.13-2.43). The respective figures were even higher for the early-onset precursor B-ALL (ORCD=1.66, 95% CI: 1.15-2.40 and ORprelaborCD=1.79, 95% CI: 1.21-2.66), whereas no association emerged for early-onset AML. Prelabor CD, which deprives exposure of the fetus/infant to the presumably beneficial effect of stress hormones released in both vaginal labor and during labor CD, was associated exclusively with an increased risk of early-onset ALL, particularly the precursor B-ALL subtype. If confirmed, these adverse long-term outcomes of CD may point to re-evaluation of prelabor CD practices and prompt scientific discussion on the best ways to simulate the effects of vaginal delivery, such as a precesarean induction of labor.
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3.
  • Gogas, Helen J., et al. (författare)
  • The role of depression and personality traits in patients with melanoma : a South-European study
  • 2017
  • Ingår i: Melanoma research. - : LIPPINCOTT WILLIAMS & WILKINS. - 0960-8931 .- 1473-5636. ; 27:6, s. 625-631
  • Tidskriftsartikel (refereegranskat)abstract
    • We explored the potential association of depression history and personality, evaluated through a robust questionnaire tool, namely the Eysenck Personality Scale, with disease risk and progression among Greek patients. A total of 106 melanoma patients and their 1 : 1 sex-matched controls were interviewed on the basis of a questionnaire comprising phenotypic, sociodemographic, lifestyle and medical history variables, as well as information on history of lifetime major depression. The Eysenck Personality Questionnaire, measuring the four personality dimensions (extraversion, neuroticism, psychoticism, lie), was thereafter completed. Adjusted odds ratios (ORs) for melanoma risk were derived through multiple logistic regression analyses, whereas potential predictors of survival were explored using Cox proportional hazards models. Sun sensitivity score [OR: 1.55, 95% confidence interval (CI): 1.16-2.06] and major depression history (OR: 5.72, 95% CI: 1.38-23.73) were significantly associated with melanoma, whereas inverse associations of extraversion (OR: 0.90, 95% CI: 0.83-0.97) and psychoticism score (OR: 0.88, 95% CI: 0.78-1.00) were noted. These associations were more pronounced and remained solely among female patients; notably, decreased extraversion (OR: 0.86, 95% CI: 0.76-0.98) and psychoticism score (OR: 0.63, 95% CI: 0.43-0.91), as well as increased depression history (OR: 10.69, 95% CI: 1.43-80.03) were evident. Cox-derived hazard ratios showed nonsignificant associations of depression history and personality with disease outcome. Our data support the hypotheses that depression history and personality are associated with melanoma risk. No effect on survival after cancer diagnosis was observed. If confirmed in future studies, these associations may contribute toward better understanding the etiology of melanoma, enhancing health-related quality of life. Copyright (C) 2017 Wolters Kluwer Health, Inc. All rights reserved.
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