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Differentiation of the Gastric Mucosa I. Role of histamine in control of function and integrity of oxyntic mucosa: understanding gastric physiology through disruption of targeted genes

Many physiological functions of the stomach depend on an intact mucosal integrity; function reflects structure and vice versa. Histamine in the stomach is synthesized by histidine decarboxylase (HDC), stored in enterochromaffin-like (ECL) cells, and released in response to gastrin, acting on CCK2 receptors on the ECL cells. Mobilized ECL cell histamine stimulates histamine H-2 receptors on the par

Early Diagnosis and Staging.

This report reviews developments in the early diagnosis and staging of prostate cancer and updated on the incidence of postate cancer to discuss the pros and cons of population based screening. Refinements and reliability of various diagnosic procedures are described such as PSA testing, transrectal ultrasound, ratio beteen PSA-level and ultrasound measured prostate volume, rate of change of PSA-l

Intake of vegetables, legumes, and fruit, and risk for all-cause, cardiovascular, and cancer mortality in a European diabetic population

We examined the associations of intake of vegetables, legumes and fruit with all-cause and cause-specific mortality in a population with prevalent diabetes in Europe. A cohort of 10,449 participants with self-reported diabetes within the European Prospective Investigation into Cancer and Nutrition study was followed for a mean of 9 y. Intakes of vegetables, legumes, and fruit were assessed at base

Purification of recombinant and human apolipoprotein A-1 using surfactant micelles in aqueous two-phase systems: Recycling of thermoseparating polymer and surfactant with temperature-induced phase separation

An effective system has been developed for purification of apolipoprotein A-1 from Escherichia coli fermentation solution and human plasma using aqueous two-phase extraction and thermal-phase separation. The system included non-ionic surfactants (Triton or Tween) and as top phase-forming polymer a random copolymer of ethylene oxide (50%) and propylene oxide (50%), Breox PAG 50A 1000, was used. The

Circulating Free Fatty Acids do not Contribute to the Acute Systemic Inflammatory Response. An Experimental Study in Porcine Endotoxaemia

Intensive insulin therapy, aiming for strict normoglycaemia, is associated with increased survival in critically ill patients. Insulin therapy concomitantly reduces plasma-free fatty acids. Recent studies indicate that free fatty acids mediate inflammation. In addition to plasma glucose and free fatty acid-lowering effects, insulin also has anti-inflammatory properties. This study was designed to

Factor V and thrombotic disease: description of a janus-faced protein.

The generation of thrombin by the prothrombinase complex constitutes an essential step in hemostasis, with thrombin being crucial for the amplification of blood coagulation, fibrin formation, and platelet activation. In the prothrombinase complex, the activated form of coagulation factor V (FVa) is an essential cofactor to the enzyme-activated factor X (FXa), FXa being virtually ineffective in the

Novel genes continue to enhance population growth in adders (Vipera berus)

In 1999, we published a report on how an introduction of 20 males into a severely inbred and isolated population of adders (Vipera berus) halted its decline towards extinction, induced a profound change in population genetic variability, resulted in a dramatic increase in offspring viability and thus in a rapid increase in numbers. Since the publication of our paper we have received numerous inqui

Degradation of Mannan I and II Crystals by Fungal endo-β-1,4-Mannanases and a β-1,4-Mannosidase Studied with Transmission Electron Microscopy

We have used the endo-β-1,4-mannanase from Trichoderma reesei (Tr Man5A), the endo-β-1,4-mannanase from Aspergillus niger (An Man5A) and the exo-β-1,4-mannosidase from A. niger (An Mnd2A) to follow the enzymatic degradation of mannan I and II crystals. The degradation process was studied by transmission electron microscopy and also followed by analysis of the released soluble reducing sugars. The

Solitary waves in elongated clouds of strongly-interacting bosons

We examine the propagation of solitary waves in elongated clouds of trapped bosonic atoms as the confinement, the strength of the interatomic interaction, and the atom density are varied. We identify three different physical regimes and develop a general formalism that allows us to interpolate between them. Finally we pay special attention to the transition to the Tonks-Girardeau limit of strongly

Optimization of disintegration time and crushing strength of a tablet formulation

In an experiment with a factorial design, the following aspects were scrutinized: the impact on disintegration time and crushing strength caused by the loss-on-drying of the granulation; the granule-size distribution; the lubricant concentration; the compression force; and the pre-compression. Both with regard to disintegration time and crushing strength, these factors were found to have a signifi

Classification of breast cancer using genetic algorithms and tissue microarrays

PURPOSE: A multitude of breast cancer mRNA profiling studies has stratified breast cancer and defined gene sets that correlate with outcome. However, the number of genes used to predict patient outcome or define tumor subtypes by RNA expression studies is variable, nonoverlapping, and generally requires specialized technologies that are beyond those used in the routine pathology laboratory. It wou

The electrical conductivity of milk - The effect of dilution and temperature

The electrical conductivity of milk at various dilutions was measured at different temperatures from; 2 to 70 degrees C The results showed that dilution has only, a small influence on the temperature dependence of conductivity. A simple power-law model predicts that the conductivity is proportional to the milk concentration to the power of 0.84 and a two-term model describes the temperature depend

Serum TRACP 5b is a useful marker for monitoring alendronate treatment: comparison with other markers of bone turnover

We studied clinical performance of serum TRACP 5b and other bone turnover markers, including S-CTX, U-DPD, S-PINP, S-BALP, and S-OC, for monitoring alendronate treatment. TRACP 5b had higher clinical sensitivity, area under the ROC curve, and signal-to-noise ratio than the other markers. INTRODUCTION: The purpose of this study was to compare the clinical performance of serum TRACP 5b (S-TRACP5b) w

Plasma-lead concentration: investigations into its usefulness for biological monitoring of occupational lead exposure

Background The lead concentration in plasma is correlated to that in whole blood with a two to fourfold variation. It has never been investigated if this variation is interindividual. Methods Lead and hemoglobin were determined in blood and plasma from 13 lead workers with a history of relatively high blood-lead concentrations, sampled three times during 1 day. The variation in the distribution of

Biomimetic Synthesis toward the Transtaganolides/Basiliolides.

A concise biomimetic approach toward transtaganolides C and D involving an Ireland-Claisen rearrangement/intramolecular Diels-Alder reaction sequence suggesting the involvement of pericyclic reactions in the biosynthesis of these biologically active plant metabolites is presented. A final coupling reaction establishes the carbon framework of the transtaganolides.

Transient aggregation and stable dimerization induced by introducing an Alzheimer sequence into a water-soluble protein

Transient contacts between denatured polypeptide chains are likely to play an important part in the initial stages of protein aggregation and fibrillation. To analyze the nature of such contacts, we have carried out a protein engineering study of the 102-residue protein U1A, which aggregates transiently in the wild-type form during refolding from the guanidinium chloride-denatured state. We have p

The restricted active space followed by second-order perturbation theory method: Theory and application to the study of CuO(2) and Cu(2)O(2) systems.

A multireference second-order perturbation theory using a restricted active space self-consistent field wave function as reference (RASPT2/RASSCF) is described. This model is particularly effective for cases where a chemical system requires a balanced orbital active space that is too large to be addressed by the complete active space self-consistent field model with or without second-order perturb

An ab initio investigation of the mechanisms of photodissociation in bromobenzene and iodobenzene

In concert with the latest experiment of velocity imaging technique [X. P. Zhang et al., ChemPhysChem 9, 1130 (2008)], quantum chemical calculations with relativistic effect were performed on the photodissociation of bromobenzene (BrPh) and iodobenzene (IPh) at 266 nm. The method of multistate second order multiconfigurational perturbation theory in conjunction with spin-orbit interaction through

Addition of Various Carbohydrates to Beef Burgers Affects the Formation of Heterocyclic Amines during Frying

The influence of the addition of carbohydrates with different physicochemical properties on weight loss and formation of heterocyclic amines (HAs) during the frying of beef burgers was examined. Furthermore, the capability of carbohydrates to bind HAs was tested. Beef burgers containing 1.5% NaCl and 0.3% tripolyphosphate (reference), with the addition of 1.5% carbohydrate, were fried for 5 min at