Effects of age, comorbidity and adherence to current antimicrobial guidelines on mortality in hospitalized elderly patients with community-acquired pneumonia.

Background: Limited information exists on the clinical characteristics predictive of mortality in patients aged ≥65 years in many countries. The impact of adherence to current antimicrobial guidelines on the mortality of hospitalized elderly patients with community-acquired pneumonia (CAP) has never been assessed.

Methods: A total of 3131 patients aged ≥65 years were enrolled from a multi-center, retrospective, observational study initiated by the CAP-China network.

Leishmania chagasi: the alpha-tubulin intercoding region results in constant levels of mRNA abundance despite protein synthesis inhibition and growth state.

The intercoding regions of many Leishmania sp. genes have been implicated in the regulation of mRNA processing, stability, and translation. Herein we show that the intercoding region of the Leishmania chagasi alpha-tubulin gene (alpha-TUB) confers stable beta-galactosidase (beta-GAL) reporter mRNA levels during promastigote growth and development in vitro and during protein synthesis inhibition.

Regulation of genes encoding the major surface protease of Leishmania chagasi via mRNA stability.

The intercoding regions between many Leishmania sp. genes regulate their mRNA expression. The MSPL mRNA, encoding a subclass of the major surface protease (MSP) of Leishmania chagasi, increases in abundance, when protein synthesis is arrested, while alpha-tubulin (alpha-TUB) mRNA and most other mRNAs do not.