نتایج جستجو برای: mor
تعداد نتایج: 2674 فیلتر نتایج به سال:
Opioids mediate their analgesic effects by activating mu-opioid receptors (MOR) not only within the central nervous system but also on peripheral sensory neurons. The peripheral analgesic effects of opioids are best described under inflammatory conditions (e.g., arthritis). The present study investigated the effects of inflammation on MOR binding and G-protein coupling of full versus partial MO...
Morphine and related µ-opioid receptor (MOR) agonists remain among the most effective drugs known for acute relief of severe pain. A major problem in treating painful conditions is that tolerance limits the long-term utility of opioid agonists. Considerable effort has been expended on developing an understanding of the molecular and cellular processes that underlie acute MOR signaling, short-te...
Transcription of bacteriophage Mu occurs in a regulatory cascade consisting of three phases: early, middle, and late. The 1.2-kb middle transcript is initiated at Pm and encodes the C protein, the activator of late transcription. A plasmid containing a Pm-lacZ operon fusion was constructed. beta-Galactosidase expression from the plasmid increased 23-fold after Mu prophage induction. Infection o...
It is well known that the mu-opioid receptor (MOR) plays an important role in the rewarding properties of ethanol. However, it is less clear how chronic ethanol consumption affects MOR signaling. Here, we demonstrate that rats with prolonged voluntary ethanol consumption develop antinociceptive tolerance to opioids. Signaling through the MOR is controlled at many levels, including via the proce...
The C-terminal domain of the alpha subunit (alpha CTD) of Escherichia coli RNA polymerase is often involved in transcriptional regulation. The alpha CTD typically stimulates transcription via interactions with promoter UP element DNA and transcriptional activators. DNase I footprinting and gel mobility shift assays were used to look for potential interaction of the alpha CTD with the phage Mu m...
Opiates modulate many macrophage functions. Microglia, the resident macrophages of the brain, migrate to sites of inflammation within the CNS. Using primer sets designed to span the entire open reading frame of the human brain mu opioid receptor (MOR), we found that microglial cells constitutively expressed MOR mRNA. The cDNA sequences of the MOR open reading frame in microglia were identical t...
BACKGROUND N-methyl-1-deoxynojirimycin (MOR-14), an alpha-glucosidase inhibitor, reduces the glycogenolytic rate by inhibiting the alpha-1,6-glucosidase of glycogen-debranching enzyme in the liver, in addition to possessing an antihyperglycemic action by blocking alpha-1,4-glucosidase in the intestine. Because the reduction of the glycogenolytic rate may be one of the mechanisms of myocardial p...
The pharmacological effects of opioid drugs are mediated mainly by the mu-opioid receptor (MOR), which is encoded by an mRNA transcript named MOR1. Although several MOR mRNA splice variants have been reported, their biological relevance has been debated. In this study, we found that probes of regions essential for the production of functional MOR, as well as that of the 3'-downstream region of ...
The 5 -flanking region of the mouse opioid receptor (MOR) gene has two promoters, referred to as distal and proximal. MOR mRNA is predominantly initiated by the proximal promoter. Previously, several important cis-elements and transfactors have been shown to play a functional role in the proximal promoter of the MOR gene. In this study, we defined another functional, negative regulatory element...
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