introduction: long-term levodopa treatment of parkinson’s disease (pd) is frequently complicated by spontaneously occurring involuntary muscle movements called dyskinesia. the exact pathological mechanism of this complication has not yet been elucidated. we have previously demonstrated that in pd patients the vulnerability to develop peripheral but not orofacial dyskinesia is associated with th...

in this paper a general discussion of the available data on the role of prostaglandin (pg) and phosphodiesterase is discussed. functional studies would be a next step to understand the functional meaning of the data described in this paper. the data presented are a basis for further research on selective modulation of the ep1 and ep2 receptor which could be a therapeutic target in functional bl...

Cytosolic tail motifs in host cell surface receptors predict modes of SARS-CoV-2 entry and propagation.

Long-term potentiation (LTP) is a biological process of learning and memory after a high-frequency train of electrical stimulations. By binding of brain-derived neurotrophic factor (BDNF) to Tropomyosin receptor kinase B (TrKB) receptors in postsynaptic neurons, tyrosine kinase Fyn is bound to these receptors and hereby plays a mediating role to binding and activation of N-methyl-D-aspartic aci...

P2x7 receptors are Purineric receptors that are extracellular ATP-gated ion channel. These receptors require high dose or prolonged exposure to ATP for initial activation. The Activation of these receptors facilitates the formation of inflammasome which activates caspase 1. The P20 and P10 subunits of caspase 1 form active enzyme that then releases active interleukin (IL)-1 β and IL-18, tu...

BACKGROUND: Brain monoamines (such as histamine and dopamine) play an important role in emotions, cognition, reward and feeding behavior. The interactions between histamine and dopamine were studied in many physiological functions but this correlation is unclear in feeding behavior of chickens. The aim of this study was to investigate the interaction of central histaminergic and dopaminergic sy...

The discovery of the new properties of SSRs and DRs has led to a renewed interest in agents targeting these receptors and has opened new perspectives for medical treatment of patients with pituitary and neuroendocrine tumors resistant to the “classical”, currently available analogs. Moreover, SSRs and DRs crosstalk at membrane level may trigger alternative intracellular pathways or enhance the ...