Allozyme variation at the phosphoglucose isomerase (PGI) locus in the Glanville fritillary butterfly (Melitaea cinxia) is associated with variation in flight metabolic rate, dispersal rate, fecundity and local population growth rate. To map allozyme to DNA variation and to survey putative functional variation in genomic DNA, we cloned the coding sequence of Pgi and identified nonsynonymous vari...

INTRODUCTION Inhaled vasodilators such as nitric oxide and aerosolized prostacyclin (PGI(2)) are used to treat severe hypoxemia in acute respiratory distress syndrome. Preferential distribution of nitric oxide and PGI(2) to ventilated areas of the lung causes selective pulmonary vasodilation, improved ventilation/perfusion matching, and decreased hypoxemia. Because of the technical limitations ...

Nitric oxide (NO) and prostacyclin (PGI(2)) are potent fetal pulmonary vasodilators, but their relative roles and interactions in the regulation of the perinatal pulmonary circulation are poorly understood. We compared the separate and combined effects of nitric oxide synthase (NOS) and cyclooxygenase (COX) inhibition during acute hemodynamic stress caused by brief mechanical compression of the...

In the field of invasion ecology, the determination of a species' environmental tolerance, is a key parameter in the prediction of its potential distribution, particularly in the context of global warming. In poikilothermic species such as insects, temperature is often considered the most important abiotic factor that affects numerous life-history and fitness traits through its effect on metabo...

Two dermatan sulphate-containing proteoglycans from bovine sclera were examined by rotary shadowing and electron microscopy, and the results were compared with previous biochemical findings. Both the large iduronate-poor proteoglycan (PGI) and the small iduronate-rich proteoglycan (PGII) possessed a globular proteinaceous region. Whereas PGI had a branched extension from the globular region, wi...

The identity of the maturation inducer capable of mediating the differentiation of human myeloid leukemic HL-60 calls to terminal monocytic cells was investigated. One of such inducers from T cells was purified as a 54.3-kD peptide. The amino acid sequence of a tryptic peptide and the enzyme cleavage sites revealed 100% homology to neuroleukin or phosphoglucose isomerase (PGI). Neuroleukin medi...

Objective To study the clinical characteristics and prognostic factors of survival for patients with primary gastrointestinal non-Hodgkin's lymphoma (PGI-NHL). Methods A retrospective analysis was performed for 104 PGI-NHL patients who were admitted in Baoding First Central Hospital from July 2003 to January 2014. Results There were 58 males and 46 females. The median age of onset was 53 (1...

  Background: Currently, non-invasive methods for screening atrophic gastritis and gastric cancer are lacking. The purpose of this study was to evaluate the value of serological parameters including serum pepsinogen I (PGI), pepsinogen II (PGII) and pepsinogen I: II ratio for the screening atrophic gastritis and gastric cancer.   Methods : The study population consisted of 132 dyspeptic patient...

Hepatic metabolism of prostacydin (PGI,) results in the formation of several biologically inactive lipids and one stable product that has the same chromatographic and biological properties as authentic 6-keto PGE,. Both prostaglandins, 6-keto PGE, and PGI2, hare comparable potency in their antiaggregatory and disaggregatory effects on platelets. They contract the superfused rat stomach strip bu...

Prostacyclin (PGI(2)) is a key mediator of pulmonary vasodilation during perinatal cardiopulmonary transition, at a time when fetal plasma estrogen levels are rising. We have previously shown that estradiol-17beta (E(2)) rapidly stimulates nitric oxide production by ovine fetal pulmonary artery endothelial cells (PAEC), and that this occurs through nongenomic mechanisms which are calcium- and t...