Video of the Month: Pulsating Umbilicus in a Neonate with Left Ventricular Diverticulum.

Left ventricular diverticulum (LVD) is a rare malformation presenting in 0.05% of all congenital cardiac anomalies. It is associated with additional cardiac and extracardiac malformations.

Overactivated Epithelial NF-κB Disrupts Lung Development in Congenital Diaphragmatic Hernia.

Abnormal lung development is the main cause of morbidity and mortality in neonates with congenital diaphragmatic hernia (CDH), a common birth defect (1:2,500) of largely unknown pathobiology. Recent studies discovered that inflammatory processes, and specifically NF-κB-associated pathways, are enriched in human and experimental CDH. However, the molecular signaling of NF-κB in abnormal CDH lung development and its potential as a therapeutic target require further investigation.

From a concept to a word in a syntactically complete sentence: an fMRI study on spontaneous language production in an overt picture description task.

Spontaneous language has rarely been subjected to neuroimaging studies. This study therefore introduces a newly developed method for the analysis of linguistic phenomena observed in continuous language production during fMRI. Most neuroimaging studies investigating language have so far focussed on single word or - to a smaller extent - sentence processing, mostly due to methodological considerations.

A new glycosylated lipopeptide incorporated into the cell wall of a smooth variant of Gordona hydrophobica.

A cell wall component of a smooth variant of Gordona hydrophobica 1775/15 was isolated and purified, and its structure was determined by various chemical methods, including chemical synthesis of part structures, Edman degradation, gas chromatography/mass spectrometry analysis, matrix-assisted laser desorption ionization-post-source decay (MALDI-PSD) tandem mass spectrometry, and 1H and 13C NMR using one- and two-dimensional, homo- and heteronuclear correlated spectroscopy. The cell wall component was found to be a (mono-) glycosylated peptidolipid (GPL) consisting of a tridecapeptide interlinked by a beta-hydroxylated fatty acid (3-hydroxyeicosanoic acid, 20:0 (3-OH)) to form a cyclic lactone ring structure. The main fraction of GPL, for which we propose the name gordonin, was identified as 3-hydroxyeicosanoyl-L-seryl-L-phenylalanyl-L-seryl- L-seryl-D-alanyl-L -(O-beta-D-glucopyranosyl)-threonyl-glycyl-D-leucyl-L-valyl-L-seryl-L -phenylalanyl-glycyl-L-valyl lactone.

Biochemical Characterization of a Protease Involved in the Processing of a Streptomyces reticuli Cellulase (Avicelase).

A 36-kDa protease from Streptomyces reticuli had recently been shown to be responsible for the in vivo and in vitro processing of the 82-kDa cellulase (Avicelase) Cel-1 from S. reticuli to a 42-kDa truncated enzyme. It was induced only in the presence of Avicel, hydroxyethylcellulose, and xylan.