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Penguins play important roles in the biogeochemical cycle between Antarctic Ocean and land ecosystems. The roles of emperor penguin Aptenodytes forsteri, however, are usually ignored because emperor penguin breeds in fast sea ice. In this study, we collected two sediment profiles (EPI and PI) from the N island near a large emperor penguin colony at Amanda Bay, East Antarctic and performed stabl...

Murthy, Karnam S., Huiping Zhou, Jiean Huang, and Srinivas N. Pentyala. Activation of PLC1 by Gi/o-coupled receptor agonists. Am J Physiol Cell Physiol 287: C1679–C1687, 2004; doi:10.1152/ ajpcell.00257.2004.—The mechanism of phospholipase (PLC)activation by G protein-coupled receptor agonists was examined in rabbit gastric smooth muscle. Ca stimulated an eightfold increase in PLC1 activity in ...

OBJECTIVE To evaluate the role of cervical length (CL) and uterine artery pulsatility index (UtA-PI) at 11+0 to 13+6 weeks as predictors of spontaneous preterm delivery (sPTD) in a Chilean population. METHODS This was a prospective study of asymptomatic women with singleton pregnancies attending for a nuchal translucency scan at 11+0 to 13+6 weeks' gestation and who underwent a transvaginal s...

INTRODUCTION The aim of this study was to examine the potential effect of chorionic villus sampling (CVS) on placental perfusion by examining the change in uterine artery pulsatility index (PI) between the first and second trimesters of pregnancy. MATERIALS AND METHODS This was a prospective screening study for pregnancy complications which included measurement of uterine artery PI at 11(+0) ...

OBJECTIVE To investigate the maternal serum concentration of insulin-like growth factor-I (IGF-I) in the first trimester of pregnancies that subsequently develop preeclampsia (PE) and to examine the possible association with uterine artery pulsatility index (PI). METHODS The maternal serum concentration of IGF-I and uterine artery PI at 11-13 weeks were measured in 53 cases that developed PE,...

BACKGROUND The diagnostic significance of increased splanchnic blood flow in ulcerative colitis is unclear. This prospective study was therefore undertaken to define the role of Doppler sonography in the assessment of disease activity and in the prediction of early relapse. SUBJECTS/METHODS Splanchnic flowmetry was performed in 76 patients with ulcerative colitis (47 with active disease and 2...

West Nile Virus (WNV) is now endemic throughout North America, with annual recurrence dependent upon successful overwintering when cold temperatures drive mosquito vectors into inactivity and halt transmission. To investigate whether avian hosts may serve as an overwintering mechanism, groups of eight to ten House Sparrows were experimentally infected with a WN02 genotype of WNV and then held u...

Heterodera glycines is a serious pest of soybean in the United States. Plant introductions 90763 and 424595 are reported to be resistant to H. glycines race 5; however their genetic relationship for resistance is unknown. Crosses between these two lines and the susceptible cultivar Essex were studied in the F, F, and F generations to determine the number of genes involved in inheritance of resi...

Corynebacterium glutamicum contains genes for 13 two-component signal transduction systems. In order to test for their essentiality and involvement in the adaptive response to phosphate (Pi) starvation, a set of 12 deletion mutants was constructed. One of the mutants was specifically impaired in its ability to grow under Pi limitation, and therefore the genes lacking in this strain were named p...