[Men who have sex with men negotiating pleasure and prevention through HIV pre-exposure prophylaxis].

Prophylaxis based on antiretrovirals, such as pre-exposure prophylaxis to HIV (PrEP), has the potential to protect the populations most vulnerable to infection, which renews optimism for controlling the HIV epidemic. Against this backdrop, the aim of this article is to analyze the perceptions, negotiations and tensions surrounding the use of PrEP by men who have sex with men (MSM). This is a qualitative cross-section of a multicenter study, analyzing semi-structured interviews with 18 users of specialized HIV/AIDS healthcare facilities in the city of São Paulo/SP.

A rare case of lipomatous ganglioneuroma of the adrenal gland.

Lipomatous ganglioneuroma's are exceedingly rare benign tumours. They originate from the neuroepithelium along the sympathetic ganglia. These rare tumours have been reported generally in the posterior mediastinum and retroperitoneum.

Circulating endothelial progenitor cells and inflammatory markers in type 1 diabetes after an acute session of aerobic exercise.

Objective: To determine circulating endothelial progenitor cells (EPC) counts and levels of inflammatory markers in individuals with and without type 1 diabetes mellitus (T1DM) in response to an intense aerobic exercise session.

Subjects And Methods: In total, 15 adult men with T1DM and 15 healthy individuals underwent a 30-minute aerobic exercise session on a cycle ergometer at 60% of the peak heart rate. The EPC count (CD45/CD34/KDR), tumor necrosis factor-alpha (TNF-α) and interleukin 6 (IL-6) levels were measured before and 60 minutes after the session.

Assessment of potential ecological risk by metals in Ilha Grande Bay (Southeast Brazil).

This study evaluates contamination and potential ecological risk in Ilha Grande Bay (BIG) in southeastern Brazil. To achieve these objectives, we analyzed physicochemical, sediment textural, and geochemical data from 134 stations distributed throughout the bay. The results reveal significant environmental degradation in the coastal areas of Paraty, Saco do Mamanguá, Angra dos Reis City, and Abraão Cove (at Ilha Grande island).