Impact of dysexecutive syndrome in quality of life in Alzheimer disease: What we know now and where we are headed.

Alzheimer's disease (AD) is a common form of dementia that leads to multiple repercussions in the patient's life. This condition's clinical characteristics include loss of memory, temporal and spatial disorientation, language or executive dysfunction, and subsequent decline of social function. Dysexecutive syndrome (DS), the second most frequent neuropsychological dysfunction in AD, affects multiple brain areas and causes cognitive, behavioral, and emotional difficulties. We aimed to analyze the association between DS and AD and elucidate possible lack of evidence that may urge further research on this theme. Especially when dealing with such a disabling disease, where new findings can directly imply a better prognosis.

A imunoistoquímica em pacientes com proliferação acinar atípica no câncer prostático / Immunohistochemistry in patients with atypical acinar proliferation in prostatic cancer

Na análise histopatológica do câncer prostático muitas vezes pode-se deparar com lesões duvidosas pseudoneoplásicas e inconclusivas. Avaliar sua prevalência através do uso da imunoistoquímica em pacientes com proliferação acinar atípica (PAAP) pode melhorar a eficácia diagnóstica. Este estudo retrospectivo incluiu pacientes com diagnóstico de PAAP e imunoistoquímica utilizando: AMACR, 34BE12 e p63. Foram analisados 1542 pacientes positivos para PAAP em 293 pacientes (19%). Não houve diferença significativa na eficiência dos três marcadores; a sensibilidade foi de 99,7%; 100% e 100%, e a especificidade de 79,4%; 89% e 83,5%, respectivamente. O valor preditivo positivo foi em 90,3%, 94,3% e 91,3%, e o negativo em 99,3%; 100% e 100%, respectivamente. A exiguidade da área atípica foi citada em 92 (12,9%) como dificuldade para o diagnóstico. A imunoistoquímica foi capaz de elucidar o diagnóstico em 83,5% dos casos e a prevalência de adenocarcinoma prostático foi de 52,2%.

In the histopathological analysis of prostate cancer, it is often possible to come across doubtful pseudoneoplastic and inconclusive lesions. Assessing its prevalence through the use of immunohistochemistry in patients with atypical acinar proliferation (PAAP) can improve diagnostic efficacy. This retrospective study included patients diagnosed with PAAP and immunohistochemistry using: AMACR, 34BE12 and p63. A total of 1542 PAAP positivity in 293 patients (19%) were analyzed. There was no significant difference in the efficiency of the three markers. Sensitivity was 99.7%; 100% and 100%, and the specificity of 79.4%; 89% and 83.5%, respectively. The positive predictive value was in 90.3%, 94.3% and 91.3%, and the negative in 99.3%; 100% and 100%, respectively. The smallness of the atypical area was mentioned by 92 (12.9%) as a difficulty for diagnosis. Immunohistochemistry was able to elucidate the diagnosis in 83.5% of the cases and the prevalence of prostate adenocarcinoma was 52.2%.