Recreational Physical Activity and Premenstrual Syndrome in Young Adult Women: A Cross-Sectional Study.

Introduction: It is estimated that up to 75% of premenopausal women experience at least one premenstrual symptom and 8-20% meet clinical criteria for premenstrual syndrome. Premenstrual syndrome substantially reduces quality of life for many women of reproductive age, with pharmaceutical treatments having limited efficacy and substantial side effects. Physical activity has been recommended as a method of reducing menstrual symptom severity.

Correlation of urine and plasma cytokine levels among reproductive-aged women.

Background: Inflammation is implicated in many adverse health conditions, and recent interest has focused on the effects of chronic low-grade inflammation in generally healthy populations. Cytokines measured in plasma or serum are commonly used as biomarkers of systemic levels of inflammation. Measurement of cytokines in urine may offer a simpler and less invasive alternative, although the degree to which levels of cytokines correlate in plasma and urine among healthy individuals is unknown.

Household chemical exposures and the risk of canine malignant lymphoma, a model for human non-Hodgkin's lymphoma.

Background: Epidemiologic studies of companion animals offer an important opportunity to identify risk factors for cancers in animals and humans. Canine malignant lymphoma (CML) has been established as a model for non-Hodgkin's lymphoma (NHL). Previous studies have suggested that exposure to environmental chemicals may relate to development of CML.