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PURPOSE The primary purpose of this study was to compare the neuropsychologic functioning of long-term survivors of breast cancer and lymphoma who had been treated with standard-dose systemic chemotherapy or local therapy only. PATIENTS AND METHODS Long-term survivors (5 years postdiagnosis, not presently receiving cancer treatment, and disease-free) of(More)
BACKGROUND Laboratory and epidemiologic data suggest that aspirin has an antineoplastic effect in the large bowel. METHODS We performed a randomized, double-blind trial of aspirin as a chemopreventive agent against colorectal adenomas. We randomly assigned 1121 patients with a recent history of histologically documented adenomas to receive placebo (372(More)
CONTEXT Laboratory and epidemiological data suggest that folic acid may have an antineoplastic effect in the large intestine. OBJECTIVE To assess the safety and efficacy of folic acid supplementation for preventing colorectal adenomas. DESIGN, SETTING, AND PARTICIPANTS A double-blind, placebo-controlled, 2-factor, phase 3, randomized clinical trial(More)
OBJECTIVE Male gender, tobacco smoking and occupational exposure to arylamines and polycyclic aromatic hydrocarbons are the primary risk factors for bladder cancer. Emerging, and consistent data indicate that risk may be modified by polymorphisms in carcinogen metabolism genes, including those involving the glutathione-S-transferases. Recent work further(More)
OBJECTIVE To test the hypothesis that greater exposure to smoking in films is associated with trying smoking among adolescents. DESIGN Cross sectional survey of 4919 schoolchildren aged 9-15 years, and assessment of occurrence of smoking in 601 films. SETTING Randomly selected middle schools in Vermont and New Hampshire, USA. MAIN OUTCOME MEASURE(More)
BACKGROUND Although infection with human papillomaviruses (HPVs) is a major risk factor for several epithelial cancers, an etiologic relationship between HPV and keratinocyte cancers, such as squamous cell carcinomas (SCCs) and basal cell carcinomas (BCCs), remains unclear. METHODS In a population-based case-control study of 252 SCC case patients, 525 BCC(More)
Abstract We measured the surEdce area of the cerebral cortex and its gross morphological subdivisions in 10 pairs of monozygotic twins. Cortical surface area was estimated in vivo using magnetic resonance imaging and threedimensional computer models of the intra- and extrasulcal pial surface. The means and standard deviations of regional (e.g., gyral),(More)
BACKGROUND & AIMS Colonoscopic polypectomy is considered effective for preventing colorectal cancer (CRC), but the incidence of cancer in patients under colonoscopic surveillance has rarely been investigated. We determined the incidence of CRC in patients under colonoscopic surveillance and examined the circumstances and risk factors for CRC and adenoma(More)
Objective: Arsenic is a known bladder carcinogen and populations exposed to high arsenic levels in their water supply have reported elevated bladder cancer mortality and incidence rates. To examine the effects of lower levels of arsenic exposure on bladder cancer incidence, we conducted a case–control study in New Hampshire, USA where levels above 10 μ/l(More)
XRCC1, a protein directly involved in the repair of DNA base damage, contains at least three common polymorphisms. One of these, the codon 399 arg-->gln variant, has been associated with several cancer-related biomarkers, suggesting it may have functional significance in exposure-induced cancers. However, results from case-control studies have yielded(More)