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  • 1
    Language: English
    In: Journal of the American Chemical Society, 18 May 2011, Vol.133(19), pp.7358-60
    Description: Gold(I)-phosphine complexes are readily encapsulated by a tetrahedral supramolecular host (Ga(4)L(6)). We have investigated the catalytic activity of the resulting complexes for the intramolecular hydroalkoxylation of allenes. The catalytic activity of Me(3)PAuBr was increased 8-fold by encapsulation, as determined by initial rate kinetics, and we observed up to 67 catalytic turnovers by Me(3)PAu(+) encapsulated in Ga(4)L(6).
    Keywords: Alkanes -- Chemical Properties ; Gallium -- Chemical Properties ; Methane -- Chemical Properties;
    ISSN: 00027863
    E-ISSN: 1520-5126
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  • 2
    Language: English
    In: Journal of Food Science, July-Sept, 2012, Vol.77(7-9), p.C901-C906
    Keywords: Coating Processes -- Methods ; Cornstarch -- Usage ; Cornstarch -- Health Aspects ; Edible Coatings -- Usage ; Grain Products -- Production Management
    ISSN: 0022-1147
    Source: Cengage Learning, Inc.
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  • 3
    Article
    Article
    Language: English
    In: Telecom Asia, May, 2012, Vol.23(4), p.28(1)
    Keywords: Telecommunications Industry ; Wireless Communications Services ; China Telecom (Hong Kong) Group Ltd.
    ISSN: 1681-181X
    Source: Cengage Learning, Inc.
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  • 4
    Language: English
    In: Telecom Asia, May, 2011, Vol.22(4), p.40(1)
    Keywords: Telecommunications Industry ; Cellular Telephone Services ; China Telecom (Hong Kong) Group Ltd.
    ISSN: 1681-181X
    Source: Cengage Learning, Inc.
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  • 5
    Language: English
    In: Pediatrics, February 2011, Vol.127(2), pp.e336-44
    Description: We assessed differences in chlamydia screening rates according to race/ethnicity, insurance status, age, and previous sexually transmitted infection (STI) or pregnancy. A retrospective cohort study was performed using electronic medical record and billing data for women 14 to 25 years of age in 2002-2007, assessing differences in the odds of a chlamydia test being performed at that visit. Adjusted odds of a chlamydia test being performed were lower among women 14 to 15 years of age (odds ratio: 0.83 [95% confidence interval: 0.70-1.00]) and 20 to 25 years of age (20-21 years, odds ratio: 0.78 [95% confidence interval: 0.70-0.89]; 22-23 years, odds ratio: 0.76 [95% confidence interval: 0.67-0.87]; 24-25 years, odds ratio: 0.64 [95% confidence interval: 0.57-0.73]), compared with women 18 to 19 years of age. Black women had 3 times increased odds (odds ratio: 2.96 [95% confidence interval: 2.66-3.28]) and Hispanic women nearly 13 times increased odds (odds ratio: 12.89 [95% confidence interval: 10.85-15.30]) of testing, compared with white women. Women with public (odds ratio: 1.74 [95% confidence interval: 1.58-1.91]) and public pending (odds ratio: 6.85 [95% confidence interval: 5.13-9.15]) insurance had increased odds of testing, compared with women with private insurance. After first STI diagnosis, differences according to race/ethnicity persisted but were smaller; after first pregnancy, differences persisted. Despite recommendations to screen all sexually active young women for chlamydia, providers screened women differently according to age, race/ethnicity, and insurance status, although differences were reduced after first STI or pregnancy.
    Keywords: Chlamydia Infections -- Diagnosis ; Health Personnel -- Standards ; Mass Screening -- Methods
    ISSN: 00314005
    E-ISSN: 1098-4275
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  • 6
    Language: English
    In: Bioorganic & Medicinal Chemistry Letters, 2010, Vol.20(5), pp.1604-1609
    Description: The design and synthesis of a series of potent and selective mPGES-1 inhibitors based on an oxicam template are described. Our SAR studies allowed us to optimize this series resulting in the identification of compound which demonstrated potent inhibition in both enzyme and cellular assay. This series of compounds illustrated good mPGES-1 inhibition along with good selectivity over COX-2 and 6-keto PGF . Here we describe the SAR of a series of potent and selective mPGES-1 inhibitors based on an oxicam template. Compound demonstrated low nanomolar mPGES-1 inhibition in an enzyme assay. In addition, it displayed PGE inhibition in a cell-based assay (0.42 μM) and had over 238-fold selectivity for mPGES-1 over COX-2 and over 200-fold selectivity for mPGES-1 over 6-keto PGF .
    Keywords: Medicine ; Chemistry ; Anatomy & Physiology
    ISSN: 0960-894X
    E-ISSN: 1464-3405
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  • 7
    Language: English
    In: Science (New York, N.Y.), 29 August 2014, Vol.345(6200), pp.1054-7
    Description: The influential notion that the hippocampus supports associative memory by interacting with functionally distinct and distributed brain regions has not been directly tested in humans. We therefore used targeted noninvasive electromagnetic stimulation to modulate human cortical-hippocampal networks and tested effects of this manipulation on memory. Multiple-session stimulation increased functional connectivity among distributed cortical-hippocampal network regions and concomitantly improved associative memory performance. These alterations involved localized long-term plasticity because increases were highly selective to the targeted brain regions, and enhancements of connectivity and associative memory persisted for ~24 hours after stimulation. Targeted cortical-hippocampal networks can thus be enhanced noninvasively, demonstrating their role in associative memory.
    Keywords: Association ; Transcranial Magnetic Stimulation ; Hippocampus -- Physiology ; Memory -- Physiology ; Parietal Lobe -- Physiology
    ISSN: 00368075
    E-ISSN: 1095-9203
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  • 8
    Language: English
    In: Neuron, 04 June 2014, Vol.82(5), pp.1171-1182
    Description: Exploration permits acquisition of the most relevant information during learning. However, the specific information needed, the influences of this information on decision making, and the relevant neural mechanisms remain poorly understood. We modeled distinct information types available during contextual association learning and used model-based fMRI in conjunction with manipulation of exploratory decision making to identify neural activity associated with information-based decisions. We identified hippocampal-prefrontal contributions to advantageous decisions based on immediately available novel information, distinct from striatal contributions to advantageous decisions based on the sum total available (accumulated) information. Furthermore, network-level interactions among these regions during exploratory decision making were related to learning success. These findings link strategic exploration decisions during learning to quantifiable information and advance understanding of adaptive behavior by identifying the distinct and interactive nature of brain-network contributions to decisions based on distinct information types. How do organisms strategically explore for relevant information in order to optimize their learning? Wang and Voss model information available during contextual association learning and use model-based fMRI to pinpoint neural activity and interactions supporting strategic, information-based exploration decisions.
    Keywords: Biology ; Anatomy & Physiology
    ISSN: 0896-6273
    E-ISSN: 1097-4199
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  • 9
    Language: English
    In: Pain, February 2014, Vol.155(2), pp.377-387
    Description: Neuropathic pain-enhanced glutamate release from the presynaptic terminals of the medial prefrontal cortex is associated with upregulation of synaptic proteins and the ERK1/2- and CaMKII-synapsin I signaling pathway. Although nerve injury-induced long-term postsynaptic changes have been investigated, less is known regarding the molecular mechanisms within presynaptic axonal terminals. We investigated the molecular changes in presynaptic nerve terminals underlying chronic pain-induced plastic changes in the medial prefrontal cortex (mPFC). After neuropathic pain was induced by spared nerve injury (SNI) in rats, we assessed the release of the excitatory neurotransmitter glutamate by using in vitro synaptosomal preparations from the mPFC. We also measured the levels of synaptic proteins and protein kinases in synaptosomes using Western blotting. The results showed that unilateral long-term SNI augmented depolarization-evoked glutamate release from synaptosomes of the bilateral mPFC. This result was confirmed by a rapid destaining rate of FM1-43 dye in SNI-operated rats. Unilateral long-term nerve injury also significantly increased synaptic proteins (including synaptophysin, synaptotagmin, synaptobrevin, syntaxin, and 25-kDa synaptosome-associated protein) in synaptosomal fractions from the bilateral mPFC, and ultrastructure images demonstrated increased synaptic vesicular profiles in synaptosomes from SNI animals. Chronic pain upregulated the phosphorylation of endogenous protein kinases, including extracellular signal-regulated kinases 1 and 2 (ERK1/2) and Ca /calmodulin-dependent kinase II (CaMKII), and synapsin I, the primary presynaptic target of ERK1/2 and CaMKII. Both presynaptic proteins and protein kinases were upregulated after SNI in a time-dependent manner. These results indicate that the long-term neuropathic pain-induced enhancement of glutamate release in the mPFC is linked to increased synaptic vesicle proteins and the activation of the ERK1/2- and CaMKII-synapsin signaling cascade in presynaptic axonal terminals.
    Keywords: Medial Prefrontal Cortex ; Neuropathic Pain ; Synaptosome ; Glutamate ; Synaptic Proteins ; Protein Kinase ; Medicine
    ISSN: 0304-3959
    E-ISSN: 1872-6623
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  • 10
    Language: English
    In: Clinical Imaging, 2010, Vol.34(5), pp.385-387
    Description: Stereotactic directional vacuum-assisted breast biopsy (ST DVAB) is an accurate biopsy method. Marking the biopsy site with a clip is mandatory after ST DVAB, in case excision is required. With the ST DVAB system we use, clip was delivered through the biopsy probe. We report a case with malfunctioning of the ST DVAB system during the procedure, and thus the clip could not be placed through the biopsy probe. To salvage the procedure, we placed the clip to the biopsy site via a hemostasis introducer sheath.
    Keywords: Breast Biopsy ; Breast Neoplasms ; Clip Placement ; Medicine
    ISSN: 0899-7071
    E-ISSN: 1873-4499
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