Stimulus-dependent learning and memory in the neotropical ant Ectatomma ruidum.

Learning and memory are major cognitive processes strongly tied to the life histories of animals. In ants, chemotactile information generally plays a central role in social interaction, navigation and resource exploitation. However, in hunters, visual information should take special relevance during foraging, thus leading to differential use of information from different sensory modalities.

Application of medical cannabis in unstable angina and coronary artery disease: A case report.

Rationale: First discovered in 1990, the endocannabinoid system (ECS) was initially shown to have an intimate relationship with central areas of the nervous system associated with pain, reward, and motivation. Recently, however, the ECS has been extensively implicated in the cardiovascular system with contractility, heart rate, blood pressure, and vasodilation. Emerging data demonstrate modulation of the ECS plays an essential role in cardio metabolic risk, atherosclerosis, and can even limit damage to cardiomyocytes during ischemic events.

Optimization of capillary zone electrophoresis for charge heterogeneity testing of biopharmaceuticals using enhanced method development principles.

CZE is a well-established technique for charge heterogeneity testing of biopharmaceuticals. It is based on the differences between the ratios of net charge and hydrodynamic radius. In an extensive intercompany study, it was recently shown that CZE is very robust and can be easily implemented in labs that did not perform it before.

The Effects of Fat Body Tyramine Level on Gustatory Responsiveness of Honeybees () Differ between Behavioral Castes.

Division of labor is a hallmark of social insects. In the honeybee () each sterile female worker performs a series of social tasks. The most drastic changes in behavior occur when a nurse bee, who takes care of the brood and the queen in the hive, transitions to foraging behavior.

Different Roles for Honey Bee Mushroom Bodies and Central Complex in Visual Learning of Colored Lights in an Aversive Conditioning Assay.

The honey bee is an excellent visual learner, but we know little about how and why it performs so well, or how visual information is learned by the bee brain. Here we examined the different roles of two key integrative regions of the brain in visual learning: the mushroom bodies and the central complex. We tested bees' learning performance in a new assay of color learning that used electric shock as punishment.

Learning, gustatory responsiveness and tyramine differences across nurse and forager honeybees.

Honeybees are well known for their complex division of labor. Each bee sequentially performs a series of social tasks during its life. The changes in social task performance are linked to gross differences in behavior and physiology.

Morphine addiction in ants: a new model for self-administration and neurochemical analysis.

Conventional definitions of drug addiction are focused on characterizing the neurophysiological and behavioral responses of mammals. Although mammalian models have been invaluable in studying specific and complex aspects of addiction, invertebrate systems have proven advantageous in investigating how drugs of abuse corrupt the most basic motivational and neurochemical systems. It has recently been shown that invertebrates and mammals have remarkable similarities in their behavioral and neurochemical responses to drugs of abuse.

Endothelial cell-based methods for the detection of cyanobacterial anti-inflammatory and wound-healing promoting metabolites.

Acute lung injury is accompanied by an increased endothelial chemokine production and adhesion molecule expression, which may result in an extensive neutrophil infiltration. Moreover, a destruction of the alveolar epithelium and capillary endothelium may result in permeability edema. As such, the search for novel anti-inflammatory substances, able to downregulate these parameters as well as the tissue damage holds therapeutic promise.

The organization of the gene (EPB72) encoding the human erythrocyte band 7 integral membrane protein (protein 7.2b).

The human gene EPB72 coding for the band 7 integral membrane protein, a major protein of the erythrocyte membrane, was isolated from a genomic DNA library and characterized. Spanning approximately 30 kb, the human EPB72 gene comprises seven exons ranging from 73 to 2331 bp; intron sizes range from 970 to approximately 11,200 bp. The first exon contains the 5'-untranslated region (61 nucleotides) and the coding sequence for the N-terminal domain; the second exon encodes the hydrophobic domain, including flanking cysteine and lysine residues.

The gene coding for erythrocyte protein band 7.2b (EPB72) is located in band q34.1 of human chromosome 9.

Human erythrocyte integral membrane protein band 7 (also termed protein 7.2b or stomatin) is involved in the Na+/K+ permeability of red cells. A cDNA clone coding for this protein was used as a probe to determine the chromosomal localization of the gene (EPB72).

Cloning and nucleotide sequence of cDNA encoding human erythrocyte band 7 integral membrane protein.

cDNA clones encoding the human erythrocyte band 7 membrane protein were isolated by immunoscreening from bone marrow and HeLa cell lambda gt 11 cDNA libraries, and their nucleotide sequences were determined. HeLa- and bone marrow cell-derived sequences were identical, except for one nucleotide; the deduced sequence of 287 amino acids was confirmed by sequence identity with peptides of the erythroid protein. Structure analysis assigned band 7 protein to the type Ib transmembrane proteins.