Science Behind the News: Allergies

submitted by: nsf

Seasonal Allergies affect more than 40 million Americans each year. Plant biologist Dr. Kristina Stinson of Harvard University explains how allergies affect the body, and why warmer weather could lead to longer, more severe allergy seasons. "Science Behind the News" is produced in partnership with NBC Learn.

Provided by the National Science Foundation & NBC Learn

Health effect of the New Nordic Diet in adults with increased waist circumference: a 6-mo randomized controlled trial.

submitted by: skp
BACKGROUND: The regional Mediterranean Diet has been associated with lower risk of disease. OBJECTIVE: We tested the health effects of the New Nordic Diet (NND), which is a gastronomically driven regional, organic, and environmentally friendly diet, in a carefully controlled but free-living setting. DESIGN: A total of 181 centrally obese men and women, with a mean (range) age of 42 y (20-66 y), body mass index (in kg/m(2)) of 30.2 (22.6-47.3), and waist circumference of 100 cm (80-138...
Authors: Sanne Kellebjerg Poulsen, Anette Due, Andreas Jordy, Bente Kiens, Ken D Stark, Steen Stender, Claus Holst, Arne Astrup, Thomas Meinert Larsen

Association between prenatal polychlorinated biphenyl exposure and obesity development at ages 5 and 7y: a prospective cohort study of 656 children from the Faroe Islands

submitted by: jltp@mac.com
Abstract Background: Chemicals with endocrine-disrupting abilities may act as obesogens and interfere with the body's natural weight-control mechanisms, especially if exposure occurs during prenatal life. Objective: We examined the association between prenatal exposure to polychlorinated biphenyls (PCBs) and p,p?-dichlorodiphenyldichloroethylene (DDE) and subsequent obesity at 5 and 7 y of age. Design: From 1997 to 2000, 656 pregnant Faroese women were recruited. PCB and DDE were...
Authors: Jeanett L Tang-Péronard, Berit L Heitmann, Helle R Andersen, Ulrike Steuerwald, Philippe Grandjean, Pál Weihe, Tina K Jensen

Silencing the Menkes Copper-Transporting ATPase (Atp7a) Gene in Rat Intestinal Epithelial (IEC-6) Cells Increases Iron Flux via Transcriptional Induction of Ferroportin 1 (Fpn1)

submitted by: jfcollins
The Menkes copper-transporting ATPase (Atp7a) gene is induced in rat duodenum during iron deficiency, consistent with copper accumulation in the intestinal mucosa and liver. To test the hypothesis that ATP7A influences intestinal iron metabolism, the Atp7a gene was silenced in rat intestinal epithelial (IEC-6) cells using short hairpin RNA (shRNA) technology. Perturbations in intracellular copper homeostasis were noted in knockdown cells, consistent with the dual roles of ATP7A in pumping...
Authors: Sukru Gulec, James F. Collins

DIETARY MAGNESIUM INTAKE IS INVERSELY ASSOCIATED WITH MORTALITY IN ADULTS AT HIGH CARDIOVASCULAR RISK

submitted by: Marta Guasch
The relation between dietary magnesium intake and cardiovascular disease or mortality has been evaluated in several prospective studies, but few of them have assessed the risk of all-cause mortality, which has never been evaluated in Mediterranean adults at high cardiovascular risk. The aim of this study was to assess the association between magnesium intake and cardiovascular disease and mortality risk, in a Mediterranean population at high cardiovascular risk with high average magnesium...
Authors: Marta Guasch-Ferré, Mònica Bulló, Ramon Estruch, Dolores Corella, Miguel A Martínez-González, Emilio Ros, Maribel Covas, Fernando Arós, Enrique Gómez-Gracia, Miquel Fiol, José Lapetra, Miguel A Muñoz, Lluís Serra-Majem, Nancy Babio, Xavier Pintó, Rosa M Lamuela-Raventós, Valentina Ruiz-Gutíerrez, Jordi Salas-Salvadó

The addition of soft tissue replacement grafts in plastic periodontal and implant surgery: critical elements in design and execution

submitted by: Otto Zuhr
Soft tissue replacement grafts have become a substantial element to increase tissue volume in plastic periodontal and implant surgery. Autogenous subepithelial connective tissue grafts are increasingly applied in aesthetic indications like soft tissue thickening, recession treatment, ridge preservation, soft tissue ridge augmentation and papilla reconstruction. For the clinical performance of connective tissue graft harvesting and transplantation, a fundamental understanding of the anatomy...
Authors: Daniel Bäumer, Markus Hürzeler, Otto Zuhr