Incidental Learning and Memory Deficits on a Computerized Symbol-Digit Modalities Test in Adults with HIV/AIDS.

Objective: Incidental learning and memory, as well as processing speed, were examined in human immunodeficiency virus (HIV)-positive adults and a seronegative control group.

Methods: Participants completed a computerized Symbol-Digit Modalities Test (cSDMT) with two blocked conditions: a set of trials with the standard symbol-digit pairings and the second set with a rearranged symbol-digit pairings.

Results: HIV-positive adults showed slower overall reaction time compared to the HIV-negative group.

Rheology in the Presence of Carbon Dioxide (CO) to Study the Melt Behavior of Chemically Modified Polylactide (PLA).

For the preparation of polylactide (PLA)-based foams, it is commonly necessary to increase the melt strength of the polymer. Additives such as chain extenders (CE) or peroxides are often used to build up the molecular weight by branching or even crosslinking during reactive extrusion. Furthermore, a blowing agent with a low molecular weight, such as carbon dioxide (CO), is introduced in the foaming process, which might affect the reactivity during extrusion.

Recent cocaine use and memory impairment in HIV.

Both Human Immunodeficiency Virus (HIV) and cocaine use have been associated with impairment in neuropsychological functioning. The high comorbidity between HIV and cocaine use highlights the importance of ascertaining whether there is a compounding effect of cocaine use in individuals with HIV. Among neuropsychological domains impacted by HIV, verbal memory deficits have received substantial attention partly because they have been associated with declines in functional status in HIV positive individuals.

The cognitive effects of endocrine therapy in survivors of breast cancer: A prospective longitudinal study up to 6 years after treatment.

Background: After treatment of primary breast cancer, endocrine therapy (ET) is prescribed for patients with hormone receptor-positive cancers. Despite ET recommendations of 5 to 10 years of treatment, to the authors' knowledge there is little prospective study of its impact on cognitive function over an extended period of time. ET has known pharmacologic effects on the brain.

Improvements in brain and behavior following eradication of hepatitis C.

Despite recent advances in treatment, hepatitis C remains a significant public health problem. The hepatitis C virus (HCV) is known to infiltrate the brain, yet findings from studies on associated neurocognitive and neuropathological changes are mixed. Furthermore, it remains unclear if HCV eradication improves HCV-associated neurological compromise.