Expression pattern and prognostic value of circadian clock genes in pancreatic adenocarcinoma.

Accumulating studies indicate that circadian clock genes are pivotal regulators of and of various cancers. Nevertheless, their implications in pancreatic adenocarcinoma (PAAD) remain poorly characterized. We investigated the expression pattern of circadian clock genes and evaluated their prognostic values in PAAD.

[Investigation on the source of the first human of avian influenza A (H5N1) case in Beijing].

Objective: To investigate the source of the first human case of avian influenza A (H5N1) infection in Beijing.

Methods: Interviewing the relatives of the case and other key persons, collecting and detecting samples of related biological, epidemiological and environmental data of the case were conducted. Later, the infection source was thoroughly investigated.