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Read moreBMI was the main contributory modifiable factor of BP level after multiple adjustments.
Abstract Purpose: Since extreme weight gain (EWG, defined as weight gain > 10% of baseline body weight) raises risk for recurrence among breast cancer survivors (Caan et al. AACR 2011) we undertook this study to identify risk factors for EWG after breast cancer. Methods: We screened the database of the SU.VI.MAX trial (13017 pts randomized between low-dose antioxidants and placebo, Arch Int Med 2004) to retrieve women with confirmed breast cancer occurring after inclusion, and post-cancer follow-up. The following data were collected at inclusion and during the study: anthropometric measurements, physical activity, tobacco and alcohol consumption, level of instruction and socio-economic status, current medications. Unlike other breast cancer survivor studies, data have been collected prospectively before breast cancer diagnosis. Data management and data analysis were performed using SAS software 9.1.3. We also screened questionnaires and medical reports to collect data that were not recorded in the study database: type of adjuvant therapy (chemo-and hormone therapy), use of vitamins and dietary supplements, concomitant medications (such as antidepressants, lipid lowering agents, thyroid hormones or anti-thyroid drugs), previous use of HRT, and whether patients were following a diet plan after breast cancer or no. Results: We identified 176 pts with breast cancer included since 1994 in the SU.VI.MAX 8-year Cohort Study. Among them, 25% (n=44) had weight gain >10% of baseline. The only variable significantly correlated with EWG was age at breast cancer diagnosis. Other differences, in particular level of physical activity or anthropometric measurements, did not reach statistical significance. No significant differences were seen between patients with EWG and others regarding the use of adjuvant chemotherapy (34 v 28%), aromatase inhibitors (18 v 22%), or tamoxifen (25 v 21%), previous HRT use (44 v 50%) or concomitant drugs including thyroid hormones (20 v 17%). A minority of patients was following a diet (16 v 17%) but consumption of vitamins or dietary supplements was slightly higher in patients without EWG (35 v 50%). Discussion: Weight gain after breast cancer is a well-known phenomenon affecting at various levels half of breast cancer survivors. Most recent studies suggest that patients with EWG could have an increased recurrence rate. Risk factors for weight gain are still matter of debate but the role of adjuvant chemotherapy is widely admitted. Our results however indicate that adjuvant therapy does not seem to be a major risk factor for EWG. Furthermore, lifestyle and diet do not seem to markedly affect the risk of EWG. The only significant difference observed in our study is age at diagnosis, suggesting that treatment-induced amenorrhea could play a role in some patients. Although identification of women at risk remains difficult, thus precluding a large proportion of this population from tertiary prevention, younger women seem to deserve particular attention. Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P4-12-06.
L’obesite est un probleme majeur de sante publique dans le monde qui touche, a tous les âges de la vie, un nombre croissant d’individus. L’augmentation de la prevalence de l’obesite observee au cours des dernieres annees a concerne particulierement les populations defavorisees et les formes graves. Depuis quelques annees, la chirurgie bariatrique est une option therapeutique frequente, adaptee aux obesites severes, apres echec d’autres prises en charge : la perte de poids obtenue s’avere generalement plus rapide, plus importante et plus durable, en comparaison a d’autres traitements. Elle a egalement montre une efficacite sur plusieurs comorbidites cardiometaboliques, ainsi que sur la mortalite. Des donnees recentes de la litterature mettent en evidence des resultats concordants et positifs sur l’amelioration des troubles du cycle et la reduction du risque maternofœtal apres chirurgie bariatrique. Peu d’etudes ont explore l’impact de la chirurgie sur la fertilite masculine. Cependant, quelques etudes montrent que les carences nutritionnelles provoquees par certaines interventions malabsorptives sont susceptibles d’agir sur la fertilite et le developpement fœtal. Enfin, une litterature recente aborde la question de la sante des enfants concus apres chirurgie bariatrique, a court et a long termes.
L’infertilite touche environ 15 % des couples qui cherchent a obtenir une grossesse. Dans 20 a 50 % des cas, on retrouve une anomalie de la qualite du sperme ou un facteur masculin d’infertilite. Dans plus de 15 % des cas, la cause de l’infertilite demeure inconnue. De nombreux facteurs, concernant le mode de vie et l’environnement, sont susceptibles d’agir sur la fertilite masculine en provoquant des alterations spermatiques, aussi bien en termes de quantite que de qualite. Parmi ces facteurs, le poids et l’etat nutritionnel des partenaires masculins de couples infertiles suscitent un interet recent et croissant. Le stress oxydant a un role central dans les mecanismes en jeu. Les desequilibres de la balance pro-oxydants/antioxydants, notamment du fait de comportements alimentaires inadequats, peuvent ainsi entrainer des consequences deleteres pour la fertilite.
Read moreNutrition, including diet, nutritional status and physical activity is important for public health because it is part of modifiable factors. Its effects on health are multiple and complex (gene interactions/nutrition, additive effects, multiplicative or antagonists) and sometimes difficult to study and to highlight. The relationship between a nutritional factor and a disease can be studied by different types of epidemiological or mechanistic studies which have both advantages and limits. Results from all these types of studies must be evaluated by expert committees to determine the level of evidence (convincing, probable, or limited), and exposure data for the population considered must be taken into account, to elaborate pertinent public health recommendations.
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