introduction: this study was carried out to investigate calcific tissue formation against mineral trioxide aggregate (mta) after pulp capping. materials and methods: the pulps of six teeth from four dogs were exposed and capped with mta. after extraction each tooth was sectioned into halves. each half was then further sectioned in the mesiodistal or buccolingual direction. calcified tissue of t...

talon cusp is a rare developmental anomaly that occurs most commonly on the lingual side of the incisors. occurrence of the labial talon cusp is rare in the dental literature. till date only seven cases of isolated nonsyndromic labial talon cusps have been reported in the maxillary permanent dentition. however, a few cases of syndromic labial talon cusps and faciolingual talon cusps have been r...

Capping protein binds the barbed ends of actin filaments and nucleates actin filament assembly in vitro. We purified capping protein from Saccharomyces cervisiae. One of the two subunits is the product of the CAP2 gene, which we previously identified as the gene encoding the beta subunit of capping protein based on its sequence similarity to capping protein beta subunits in chicken and Dictyost...

Fig. 1. A photograph captured intraoperatively (a) and schematic representation of QAV (b) as viewed through the aortotomy. The right and left coronary cusps were almost normal in size and had sufficient effective height. While the noncoronary cusp (NCC) was relatively thick and large, the accessory cusp (AC) was too small to independently act as a competent cusp. The raphe between the NCC and ...

OBJECTIVES Successful aortic valve repair must normalize cusp and root dimensions. Limited information is available on the normal dimensions of human cusps, in particular the cusp height. METHODS The cusp height was measured intraoperatively in 621 patients during aortic valve repair procedures. A tricuspid anatomy was present in 329 patients and bicuspid in 286 patients. In addition, patient...

A patient with multiple anomalies of the maxillary teeth, including shovel-shaped incisors, talon cusp, bilateral dens invaginatus and bilateral peg-shaped supernumerary incisors is reported. The patient also exhibited Carabelli's cusp on both maxillary first molars. No developmental syndrome was identified. This very unusual combination of anomalies has not been reported previously.

Acanthamoeba capping protein increased the rate of actin polymerization from monomers with and without calcium. In the absence of calcium, capping protein also increased the critical concentration for polymerization. Various models were evaluated for their ability to predict the effect of capping protein on kinetic curves for actin polymerization under conditions where the critical concentratio...

Each actin filament has a pointed and a barbed end, however, filament elongation occurs primarily at the barbed end. Capping proteins, by binding to the barbed end, can terminate this elongation. The rate of capping depends on the concentration of capping protein [1], and thus, if capping terminates elongation, the length of filaments should vary inversely with the concentration of capping prot...

Earth's cusp proton aurora occurs near the prenoon and is primarily produced by the precipitation of solar energetic (2-10 keV) protons. Cusp auroral precipitation provides a direct source of energy for the high-latitude dayside upper atmosphere, contributing to chemical composition change and global climate variability. Previous studies have indicated that magnetic reconnection allows solar en...