The Functions of Dopamine in Operant Conditioned Reflexes

Neuroscience and Behavioral Physiology - Dopamine neurons are activated by stimuli of both positive and negative modality according to the magnitude of the “willing effort” required to...     

Serotonin and Dopamine in Biological Models of Depression

Neuroscience and Behavioral Physiology - Depression in the biological models considered here can be split into two opposite patterns of changes in serotonin and dopamine levels, corresponding to...     

Effects of the Interaction of the ANKK1/DRD2 TaqIA and HTR2C Cys23Ser Polymorphisms on Approach Motivation in Schizophrenia Patients and Healthy People

Neuroscience and Behavioral Physiology - Objective. To assess the association of the DRD2 gene and its interaction with the HTR2C gene with the characteristics of the hedonistic and activatory...     

Neonatal Proinflammatory Stress and Deficit of Induction of Long-Term Potentiation in the Hippocampus in Rats: Gender Differences

Neuroscience and Behavioral Physiology - The characteristics of long-term potentiation (LTP) in field CA1 of living hippocampal slices from rats aged 17–33 days were studied after neonatal...     

An Immunohistochemical Study of the Pathways of the Influence of Dopamine on Orexinergic Neurons in the Perifornical Area of the Hypothalamus

Neuroscience and Behavioral Physiology - Confocal microscopy was used to analyze double immunolabeling and provided evidence of the locations of a large number of tyrosine...     

Comparative Characteristics of the Expression of Inducible NO Synthase in the Hippocampus of Humans and Experimental Animals

Neuroscience and Behavioral Physiology - Objective: To study the characteristics of the expression of inducible NO synthase (iNOS) in hippocampal fields CA1 and CA3 in adult male humans and adult...     

Vanillylmandelic acid protects against reperfusion injury in an experimental animal model of myocardial infarction

Vanillylmandelic acid, a catecholamine end-metabolite, has been shown to have several biological properties in previous studies, despite considered biologically inactive. We examined the potential effects of vanillylmandelic acid on the ischemic heart following myocardial infarction and reperfusion on a rat model. Thirty-four female Wistar rats were randomized into two groups, control and experimental. They were anesthetized and subjected to myocardial infarction through left anterior descending artery ligation. A previously studied dose of vanillylmandelic acid (10 mg/kg) was administered and the following parameters were studied during ischemia and reperfusion: a) mortality b) severity of ventricular tachyarrhythmias c) premature ventricular contractions and d) heart rate. Administration of vanillymandelic acid significantly reduced the severity of ventricular tachyarrhythmias and mortality rate during reperfusion, while it did not affect any other of the parameters studied. In conclusion, reperfusion injury was blunted through vanillylmandelic acid administration, which seems to be mediated by parasympathetic activation.     

Novel compounds targeting InhA for TB therapy

Tuberculosis (TB) is described as lethal disease in the world. Resistant to TB drugs is the main reason to have unfavourable outcomes in the treatment of TB. Therefore, new agents to replace existing drugs are urgently needed. Previous reports suggested that InhA inhibitors, an enoyl-ACP-reductase, might provide auspicious candidates which can be developed into novel antitubercular agents. In this review, we explain the role of InhA in the resistance of isoniazid. Furthermore, five classes of InhA inhibitors, which display novel binding modes and deliver evidence of their prosperous target engagement, have been debated.