Publications by authors named "S Ruehle"

Background: Diabetic patients show higher adverse ischemic event rates and mortality when undergoing percutaneous coronary intervention (PCI) in acute myocardial infarctions. Therefore, diabetic patients might benefit even more from modern-generation drug-eluting stents (DES). The aim of the present study was to compare adverse ischemic events and mortality rates between bare-metal stents (BMS) and DES in diabetic patients admitted with ST-elevation-myocardial infarction (STEMI) with non-diabetic patients as the control group.

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Several studies support the notion that exploratory behaviour depends on the functionality of the cannabinoid type 1 (CB1) receptor in a cell type-specific manner. Mice lacking the CB1 receptor in forebrain GABAergic or dorsal telencephalic glutamatergic neurons have served as essential tools revealing the necessary CB1 receptor functions in these two neuronal populations. However, whether these specific CB1 receptor populations are also sufficient within the endocannabinoid system for wild-type-like exploratory behaviour has remained unknown.

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Δ-tetrahydrocannabinol (THC), the major psychoactive ingredient of Cannabis sativa, exerts its actions through the endocannabinoid system by stimulation of the cannabinoid type 1 (CB1) receptor. The widespread distribution of this receptor in different neuronal cell types and the plethora of functions that is modulated by the endocannabinoid system explain the versatility of the effects of THC. However, the cell types involved in the different THC effects are still not fully known.

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Escaping from imminent danger is an instinctive behaviour that is fundamental for survival, and requires the classification of sensory stimuli as harmless or threatening. The absence of threat enables animals to forage for essential resources, but as the level of threat and potential for harm increases, they have to decide whether or not to seek safety . Despite previous work on instinctive defensive behaviours in rodents, little is known about how the brain computes the threat level for initiating  escape.

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Astroglial type-1 cannabinoid (CB ) receptors are involved in synaptic transmission, plasticity and behavior by interfering with the so-called tripartite synapse formed by pre- and post-synaptic neuronal elements and surrounding astrocyte processes. However, little is known concerning the subcellular distribution of astroglial CB receptors. In particular, brain CB receptors are mostly localized at cells' plasmalemma, but recent evidence indicates their functional presence in mitochondrial membranes.

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