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显示 31-60 共 124 条结果 关于 "240931" 范围 论文
L B Ellwein et al.
Critical reviews in toxicology, 20(5), 311-326 (1990-01-01)
Almost from its discovery in 1879, the use of saccharin as an artificial, non-nutritive sweetener has been the center of several controversies regarding potential toxic effects, most recently focusing on the urinary bladder carcinogenicity of sodium saccharin in rats when
Fabrizio Carta et al.
Bioorganic & medicinal chemistry letters, 19(23), 6649-6654 (2009-10-23)
The Rv3588c gene product of Mycobacterium tuberculosis, a beta-carbonic anhydrase (CA, EC 4.2.1.1) denominated here mtCA 2, shows the highest catalytic activity for CO(2) hydration (k(cat) of 9.8 x 10(5)s(-1), and k(cat)/K(m) of 9.3 x 10(7)M(-1)s(-1)) among the three beta-CAs
AnneMarie Levy et al.
Nutrients, 7(5), 3869-3890 (2015-05-27)
This study explored whether different ratios of fructose (F) and glucose (G) in sugar can engender significant differences in self-administration and associated neurobiological and physiological responses in male Sprague-Dawley rats. In Experiment 1, animals self-administered pellets containing 55% F +
Ceyda Icsel et al.
DNA and cell biology, 32(4), 165-172 (2013-03-12)
The aim of the present study is to investigate DNA binding interactions of two highly cytotoxic palladium(II) saccharinate (sac) complexes with 2,2':6',2″-terpyridine (terpy), [Pd(sac)(terpy)](sac)·4H(2)O (1) and [PdCl(terpy)](sac)·2H(2)O (2). UV-Vis spectroscopy, fluorescence spectroscopy, thermal denaturation, viscosity, and gel electrophoresis measurements were
S A Miller et al.
Diabetes care, 12(1), 74-80 (1989-01-01)
Saccharin, a nonnutritive sweetener discovered in 1879, has been the subject of controversy concerning its effect on public health on several occasions during this century. Over this period, the substance has come to be regarded as a useful commodity in
G M Prashant et al.
The journal of contemporary dental practice, 13(6), 749-752 (2013-02-14)
To evaluate the in vitro antimicrobial activity of three commercially available intense sweeteners against two common periodontal pathogens Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans. Three commercially available intense sweeteners namely saccharin, aspartame and sucralose were obtained and powdered. Necessary concentrations of
Semra Isik et al.
Bioorganic & medicinal chemistry, 17(3), 1158-1163 (2009-01-07)
The protein encoded by the Nce103 gene of Saccharomyces cerevisiae, a beta-carbonic anhydrase (CA, EC 4.2.1.1) designated as scCA, has been cloned, purified, characterized kinetically and investigated for its inhibition with a series of sulfonamides and one sulfamate. The enzyme
R L Anderson
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 26(7), 637-644 (1988-07-01)
An hypothesis is presented of a mechanism for the sodium saccharin (NaS)-associated tumorigenesis of the urinary bladder that occurs in male rats. The ingestion of high doses of NaS is associated with increased urine volume and bladder mass. In rats
Aleš Rajchl et al.
Journal of mass spectrometry : JMS, 50(11), 1214-1221 (2015-10-28)
DART (Direct Analysis in Real Time) coupled with Time-of-Flight Mass Spectrometry (TOF/MS) has been used for analyses of ice-teas. The article focuses on quality and authenticity of ice-teas as one of the most important tea-based products on the market. Twenty-one
Anthony Sclafani et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 307(12), R1448-R1457 (2014-10-17)
Recent studies indicate that, unlike glucose, fructose has little or no post-oral preference conditioning actions in C57BL/6J (B6) mice. The present study determined whether this is also the case for FVB mice, which overconsume fructose relative to B6 mice. In
Valeria Ferretti et al.
Molecular pharmaceutics, 12(5), 1501-1511 (2015-03-21)
Co-crystals are crystalline complexes of two or more molecules bound together in crystal lattices through noncovalent interactions. The solubility and dissolution properties of co-crystals can allow to increase the bioavailability of poorly water-soluble active pharmaceutical ingredients (APIs). It is currently
Jeff A Beeler et al.
The European journal of neuroscience, 36(4), 2533-2546 (2012-06-21)
Recent findings suggest the reward system encodes metabolic value independent of taste, provoking speculation that the hedonic value of taste could be derived from nutritional value as a secondary appetitive property. We therefore dissociated and compared the impact of nutrition
Zheng Tian et al.
Langmuir : the ACS journal of surfaces and colloids, 30(41), 12411-12420 (2014-09-25)
Carbon films with interdigitated bimodal three-dimensionally ordered mesoporosity (ib3DOm) are realized by a scalable nanoreplication process that removes the common need plaguing hard-templating strategies for multistep prefabrication of porous sacrificial templates. Specifically, evaporation-induced convective codeposition of size-tunable (ca. 20-50 nm)
Araceli Martínez-Moreno et al.
Frontiers in behavioral neuroscience, 5, 61-61 (2011-10-01)
It has been proposed that long-term memory (LTM) persistence requires a late protein synthesis-dependent phase, even many hours after memory acquisition. Brain-derived neurotrophic factor (BDNF) is an essential protein synthesis product that has emerged as one of the most potent
Katharine J Tuerke et al.
The Journal of neuroscience : the official journal of the Society for Neuroscience, 32(40), 13709-13717 (2012-10-05)
A taste associated with emetic drugs produces conditioned disgust reactions in rats (predominantly gaping), unlike nonemetic drugs that can still produce conditioned taste avoidance but not conditioned disgust. That difference suggests nausea is a prerequisite for learning disgust reactions to
Maryka Quik et al.
Biochemical pharmacology, 86(8), 1153-1162 (2013-07-09)
Accumulating evidence supports the idea that drugs acting at nicotinic acetylcholine receptors (nAChRs) may be beneficial for Parkinson's disease, a neurodegenerative movement disorder characterized by a loss of nigrostriatal dopaminergic neurons. Nicotine administration to parkinsonian animals protects against nigrostriatal damage.
Feray Kockar et al.
Bioorganic & medicinal chemistry, 18(15), 5498-5503 (2010-07-14)
Site-directed mutagenesis has been used to change one amino acid residue considered non essential (Phe91Asn) to catalysis in carbonic anhydrase (CA, EC 4.2.1.1) isozyme I (hCA I), but which is near the substrate binding pocket of the enzyme. This change
Hugh P Morgan et al.
The Biochemical journal, 448(1), 67-72 (2012-08-22)
PYK (pyruvate kinase) plays a central role in the metabolism of many organisms and cell types, but the elucidation of the details of its function in a systems biology context has been hampered by the lack of specific high-affinity small-molecule
Anthony Bertucci et al.
Bioorganic & medicinal chemistry letters, 21(2), 710-714 (2011-01-07)
The catalytic activity and the inhibition of a new coral carbonic anhydrase (CA, EC 4.2.1.1), from the scleractinian coral Stylophora pistillata, STPCA-2, has been investigated. STPCA-2 has high catalytic activity for the physiological reaction being less sensitive to anion and
Camilla Karlsson et al.
Pharmacology, biochemistry, and behavior, 102(3), 400-406 (2012-06-19)
The hypothalamic neuropeptide melanin-concentrating hormone and its MCH1 receptor have been implicated in regulation of feeding and energy homeostasis, as well as modulation of reward-related behaviors. Here, we examined whether the MCH system plays a role both in caloric and
Jagdishwar R Patel et al.
International journal of pharmaceutics, 436(1-2), 685-706 (2012-07-31)
Cocrystals of tenoxicam, a non-steroidal anti-inflammatory drug, are screened, prepared, and characterized in this study. Nine tenoxicam cocrystals were identified using solvent-drop grinding (SDG) techniques. Structural characterization was performed using powder X-ray diffraction (PXRD), differential scanning calorimetry, and multinuclear solid-state
Alessandra T Peana et al.
Behavioural pharmacology, 25(7), 618-628 (2014-08-15)
Recent evidence has shown that Withania somnifera Dunal (Ashwagandha or Indian ginseng), a herbal remedy used in traditional medicine, impairs morphine-elicited place conditioning. Here, we investigated the effect of W. somnifera roots extract (WSE) on motivation for drinking ethanol using
Hiroo Yamashita et al.
Life sciences, 93(20), 732-741 (2013-10-08)
In the present study, we found that saccharin, an artificial calorie-free sweetener, promotes neurite extension in the cultured neuronal cells. The purposes of this study are to characterize the effect of saccharine on neurite extension and to determine how saccharin
D C Martyn et al.
Current pharmaceutical design, 5(6), 405-415 (1999-07-03)
The inhibition of human leukocyte elastase (HLE), and other serine proteases, by succinimide and saccharin-based compounds is reviewed. The succinimide compounds are unique in that the inactivating species is generated within the enzyme active site via a molecular rearrangement. The
G Andrew Mickley et al.
Brain research, 1493, 27-39 (2012-11-28)
Due to its relevance to clinical practice, extinction of learned fears has been a major focus of recent research. However, less is known about the means by which conditioned fears re-emerge (i.e., spontaneously recover) as time passes or contexts change
Saccharin-induced bladder cancer in rats.
E M Garland et al.
Progress in clinical and biological research, 391, 237-243 (1995-01-01)
Qian Qi et al.
Respirology (Carlton, Vic.), 20(6), 917-924 (2015-06-23)
Bronchiectasis is a chronic respiratory disease with diverse causes that may differ in clinical features and thus treatment options. However, few large-scale studies on the aetiology of bronchiectasis are currently available. This study aims to determine aetiology and clinical features
Alessio Innocenti et al.
Bioorganic & medicinal chemistry, 17(13), 4503-4509 (2009-05-20)
The beta-carbonic anhydrase (CA, EC 4.2.1.1) from the fungal pathogen Candida albicans (Nce103) is involved in a CO(2) sensing pathway critical for the pathogen life cycle and amenable to drug design studies. Herein we report an inhibition study of Nce103
V Echeverry-Alzate et al.
British journal of pharmacology, 171(12), 3023-3036 (2014-02-18)
Recent and ongoing clinical studies have indicated that topiramate (Topamax®) could be effective in treating ethanol or cocaine abuse. However, the effects of topiramate on the co-administration of ethanol and cocaine remain largely unknown. We studied the effects of topiramate
Jennifer R Davies et al.
The European journal of neuroscience, 42(4), 2105-2113 (2015-06-05)
Prader-Willi syndrome (PWS) is a neurodevelopmental disorder caused by deletion or inactivation of paternally expressed imprinted genes on human chromosome 15q11-q13, the most recognised feature of which is hyperphagia. This is thought to arise as a consequence of abnormalities in
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