Results: 1720

Radiation exposure and thyroid cancer: a review

ABSTRACT The association between radiation exposure and the occurrence of thyroid cancer has been well documented, and the two main risk factors for the development of a thyroid cancer are the radiation dose delivered to the thyroid gland and the age at exposure. The risk increases after exposure to a me...

Anaerobic bacteria in the intestinal microbiota of Brazilian children

Clinics; 72 (3), 2017
OBJECTIVE: Changes in the neonatal gut environment allow for the colonization of the mucin layer and lumen by anaerobic bacteria. The aim of the present study was to evaluate Bifidobacterium, Lactobacillus and Lactococcus colonization through the first year of life in a group of 12 Brazilian infants and ...

Dental caries at Lapa do Santo, central-eastern Brazil: An Early Holocene archaeological site

An. acad. bras. ciênc; 89 (1), 2017
ABSTRACT The origin and dispersion of the first Americans have been extensively investigated from morphological and genetic perspectives, but few studies have focused on their health and lifestyle. The archaeological site of Lapa do Santo, central-eastern Brazil, has exceptionally preserved Early Holocen...

Immune System Dysfunction in the Elderly

An. acad. bras. ciênc; 89 (1), 2017
ABSTRACT Human aging is characterized by both physical and physiological frailty that profoundly affects the immune system. In this context aging is associated with declines in adaptive and innate immunity established as immunosenescence. Immunosenescence is a new concept that reflects the age-associated...

Assessment of factors related to smokers' adherence to a short-term support group for smoking cessation: a longitudinal study in a developing country

Abstract Objective: The aim of this study was to determine which individual characteristics of smokers are associated with their adherence to a support group for smoking cessation. Methods: Smokers from Porto Alegre, Brazil, were invited to participate in a support group for smoking cessation consistin...

Prevalence of photoprotection and its associated factors in risk group for skin cancer in Teresina, Piauí

An. bras. dermatol; 92 (2), 2017
Abstract: Background: The incidence of skin cancer has increased worldwide, particularly melanoma rates, which had a mean development of 2.6 % a year in the last 10 years. The agreement on the relation between long-term or chronic exposure to the sun and the emergence of these neoplasias has made severa...

Prognostic Factors in Severe Chagasic Heart Failure

Arq. bras. cardiol; 108 (3), 2017
Abstract Background: Prognostic factors are extensively studied in heart failure; however, their role in severe Chagasic heart failure have not been established. Objectives: To identify the association of clinical and laboratory factors with the prognosis of severe Chagasic heart failure, as well as th...

Major Depression and Acute Coronary Syndrome-Related Factors

Arq. bras. cardiol; 108 (3), 2017
Abstract Background: Major Depressive Disorder (MDD) is one of the most common mental illnesses in psychiatry, being considered a risk factor for Acute Coronary Syndrome (ACS). Objective: To assess the prevalence of MDD in ACS patients, as well as to analyze associated factors through the interdependen...

Growth velocity and weight gain in prepubertal asthmatic children

Summary Objective: To evaluate the stature growth rate (GR) and the weight gain of prepubertal asthmatic children. Method: A retrospective cohort study evaluating medical records of 85 children diagnosed with asthma, aged less than 9 years, of both sexes, with at least one year of follow-up in the all...

Incidence of delirium in postoperative patients treated with total knee and hip arthroplasty

Summary Introduction: Delirium is a common disorder that can potentiate mortality and comorbidity rates of patients hospitalized in intensive care units. Patients undergoing major orthopedic surgeries, such as knee and hip arthroplasty, are particularly vulnerable as they often have multiple risk facto...