Dental root formation is a dynamic process in which mesenchymal cells migrate toward the site of the future root, differentiate and secrete dentin and cementum. However, the identities of dental mesenchymal progenitors are largely unknown. Here we show that cells expressing osterix are mesenchymal progenitors contributing to all relevant cell types during morphogenesis. The majority of cells ex...

Although a large number of microRNAs (miRNAs) have been identified in different plant species, the functional roles and targets of the majority of miRNAs have not yet been determined. Here, Arabidopsis thaliana miRNA400 (miR400) was investigated for its functional role in the defense response to diverse pathogens. Transgenic Arabidopsis plants that overexpress MIR400 (35S::MIR400) displayed muc...

Photoactive yellow protein (E-PYP) is a blue light photoreceptor, implicated in a negative phototactic response in Ectothiorhodospira halophila, that also serves as a model for the Per-Arnt-Sim superfamily of signaling molecules. Because no biological signaling partner for E-PYP has been identified, it has not been possible to correlate any of its photocycle intermediates with a relevant signal...

Pest des petits ruminants (PPR) is one of the important viral diseases of goats and sheep. The viral agent of PPR, Small ruminant morbillivirus (SRM), has been shown to infect several species among domestic and wild ruminants. In order to investigate the occurrence of SRM infection in Water Buffalo (Bubalus bubalis), blood samples were collected from 150 buffaloes (98 males, 52 females) referre...

Asians. It may suggest that PPR would be 1 of numerous risk factors of atherothrombosis and that the role of it may not explain the whole clinical events after percutaneous coronary intervention. Previous studies reported that high PPR is associated with poor clinical outcomes in patients with coronary artery disease (3,4). owever, it is not clear that tailored dosing or choice of antiplateet a...

Epizootiological aspects of peste des petits ruminants (PPR) and rinderpest in sheep and goats in Saudi Arabia are examined. The presence of PPR has been suspected on occasions, but virus isolation has been successful only once. Information regarding PPR and rinderpest in sheep and goats in Saudi Arabia is scarce. The only survey conducted indicated that neither disease is endemic in the country.

The expressions of chloroplast and mitochondria genes are tightly controlled by numerous nuclear-encoded proteins, mainly at the post-transcriptional level. Recent analyses have identified a large, plant-specific family of pentatricopeptide repeat (PPR) motif-containing proteins that are exclusively involved in RNA metabolism of organelle genes via sequence-specific RNA binding. A tandem array ...

OBJECTIVES Informal reports have suggested that work as a waste collector entails exposures that cause gastrointestinal symptoms--such as nausea and diarrhoea. This study explores this hypothesis by correlating data on the type of waste collected, the persons' job function, the equipment used, and the times of the week and the year of reported nausea and diarrhoea. METHODS 1747 male waste col...

Genes for pentatricopeptide repeat (PPR) proteins are found in all eukaryotic genomes analyzed but are particularly abundant in land plants. The majority of analyzed PPR proteins play a role in the processing or translation of organellar RNAs. Few PPR proteins have been studied in detail, and the functional repertoire and mechanisms of action of proteins in the PPR family are poorly understood....

1 Objectives: Researchers have identified that pre-performance routines improve performance 2 under pressure, yet have not investigated the effects of post-performance routines. Thus, the 3 purpose of the current study was to examine whether the type of performance routine training 4 could improve tenpin bowling accuracy and in-game performance. 5 Design: A mixed-method design was adopted, wher...