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Glutamate, the neurotransmitter, enhances rapid-eye-movement (REM) sleep when microinjected into the brain stem pedunculopontine tegmentum (PPT) of the cat and rat. Glutamate and its various receptors are normally present in the PPT cholinergic cell compartment. The aim of this study was to identify which specific receptor(s) in the cholinergic cell compartment of the PPT are involved in glutam...
Background Evidence suggests that specific vaginal bacteria associated with bacterial vaginosis (BV) may increase the risk of adverse health outcomes in women. Among women participating in a randomized, double-blinded trial, we assessed the effect of periodic presumptive treatment (PPT) on detection of select vaginal bacteria. Methods High-risk women from the United States and Kenya with a re...
The pedunculopontine tegmental (PPT) GABAergic system plays a crucial role in the regulation of rapid eye movement (REM) sleep. I recently reported that the activation of PPT GABA(B) receptors suppressed REM sleep by inhibiting REM-on cells. One of the important mechanisms for GABA(B) receptor activation-mediated physiological action is the inhibition of the intracellular cAMP-dependent protein...
Shrimp farmers have been suffering from loss of production due to White Spot Disease (WSD) in the last decades. A few studies focused on the environmental factors predisposed WSD. Our study aimed to investigate the effects of the different salinities on occurrence of WSD. The treatments were 30 ppt, 40 ppt and 50 ppt in triplicate and corresponding untreated control groups. White Spot Virus (...
OBJECTIVES It has been proposed that in the same way that conflict between vestibular and visual inputs leads to motion sickness, conflict between motor commands and sensory information associated with these commands may contribute to some chronic pain states. Attempts to test this hypothesis by artificially inducing a state of sensorimotor incongruence and assessing self-reported pain have yie...
Miniaturization of domains to the nanometer scale has been previously reported in many piezoelectrics with two-phase coexistence. Despite the observation of nanoscale domain configuration near the polymorphic phase transition (PPT) regionin virgin (K0.5Na0.5)NbO3 (KNN) based ceramics, it remains unclear how this domain state responds to external loads and influences the macroscopic electro-mech...
NRPSs (non-ribosomal peptide synthetases) and PKSs (polyketide synthases) require post-translational phosphopantetheinylation to become active. This reaction is catalysed by a PPTase (4'-phosphopantetheinyl transferase). The ppt gene of Penicillium chrysogenum, encoding a protein that shares 50% similarity with the stand-alone large PPTases, has been cloned. This gene is present as a single cop...
A simple device is described, consisting of 12 weighted 23 gauge disposable needles (0.2 to 5.2 g), for testing sensation in busy diabetic clinics. The pinprick sensory threshold (PPT) is the lightest weighted needle which consistently elicits a sharp sensation. The subjects were 48 healthy controls (hospital staff), 44 diabetic patients without neuropathic symptoms, and 35 diabetic patients wi...
Ginsenosides, the active components of the famous Chinese herb ginseng, have been suggested to possess cardiovascular-protective effects. The mechanism of ginsenosides is believed to be associated with their ability to prevent cellular oxidative stress. The purpose of this study was to explore the cytoprotective effects of the ginsenoside protopanaxatriol (PPT) on hydrogen peroxide (H(2)O(2))-i...
We compiled sequences of previously published aberrant 3' splice sites (3'ss) that were generated by mutations in human disease genes. Cryptic 3'ss, defined here as those resulting from a mutation of the 3'YAG consensus, were more frequent in exons than in introns. They clustered in approximately 20 nt region adjacent to authentic 3'ss, suggesting that their under-representation in introns is d...
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